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40 pages, 14972 KB  
Review
Caffeic Acid and Human Health: Evidence-Based Roles in Disease Prevention and Treatment
by Saleh A. Almatroodi and Arshad Husain Rahmani
Int. J. Mol. Sci. 2026, 27(11), 4719; https://doi.org/10.3390/ijms27114719 (registering DOI) - 23 May 2026
Abstract
Caffeic acid (CA) is a phenolic compound commonly found in fruits, vegetables, and coffee, with preclinical evidence demonstrating its important role in disease management through different mechanisms of action. This review aimed to explore CA’s pharmacological effects in different pathological conditions, and sources [...] Read more.
Caffeic acid (CA) is a phenolic compound commonly found in fruits, vegetables, and coffee, with preclinical evidence demonstrating its important role in disease management through different mechanisms of action. This review aimed to explore CA’s pharmacological effects in different pathological conditions, and sources were retrieved by using databases like PubMed, Scopus, Google Scholar, and Web of Science and based on preclinical studies. CA notably protects cells and tissues from oxidative stress and inflammation, highlighting its therapeutic role in the management of pathogenesis. The neuroprotective, cardioprotective, hepatoprotective, anti-microbial, and anti-obesity effects are reported through in vitro and in vivo studies. Moreover, its anticancer effects are linked to modulation of cell signaling pathways, together with angiogenesis, cell cycle, apoptosis, and the PI3K/Akt pathway. This article explores how caffeic acid influences health conditions, providing a comprehensive overview of its effects on disease processes. Reviewing the literature aims to enhance the understanding of caffeic acid’s role in disease management and as a natural therapeutic agent. Although several studies demonstrate the anticancer effects and its role in the management of various pathological conditions, most of the existing evidence is based on in vitro, in vivo, and xenograft models. Moreover, many natural compounds, including CA, that exhibit activity in preclinical settings fail to translate into clinical applications, due to restrictions of poor bioavailability, toxicity, rapid metabolism, and differences in the tumor microenvironment. Thus, future studies should emphasize well-designed in vivo studies as well as controlled clinical trials to better describe CA’s safety, efficacy, mechanism of action, and therapeutic application in humans. Further investigation of its interactions with other therapeutic agents may offer insights into synergistic effects that enhance treatment efficacy. Overall, a more comprehensive understanding of this compound will be indispensable for its development as a therapeutic agent in the treatment of chronic disease. Full article
(This article belongs to the Special Issue New Advances in Bioactive Compounds in Health and Disease)
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21 pages, 17392 KB  
Article
Dauricine Mitigates Hypoxia Through Targeting ESR1, PIK3CA, and MTOR: A Network Pharmacology and Molecular Dynamics Simulation Investigation
by Zengxun Ni, Zineng Zhou, Feipeng Jia, Jingcheng Wu, Junhao Qiu, Kangrui Yuan and Zhicheng Jia
Curr. Issues Mol. Biol. 2026, 48(6), 550; https://doi.org/10.3390/cimb48060550 (registering DOI) - 23 May 2026
Abstract
Hypoxia is a prevalent pathophysiological condition. Prolonged exposure to hypobaric hypoxia can lead to maladaptation, increasing the risk of chronic hypoxic diseases such as high-altitude polycythemia (HAPC). Dauricine, an alkaloid derived from the root of Menispermum dauricum DC, has been demonstrated to possess [...] Read more.
Hypoxia is a prevalent pathophysiological condition. Prolonged exposure to hypobaric hypoxia can lead to maladaptation, increasing the risk of chronic hypoxic diseases such as high-altitude polycythemia (HAPC). Dauricine, an alkaloid derived from the root of Menispermum dauricum DC, has been demonstrated to possess anti-hypoxic properties; however, its underlying molecular mechanisms remain elusive. In this study, a potential multi-target anti-hypoxic mechanism of dauricine was proposed and computationally evaluated using an integrated approach combining network pharmacology, molecular docking, and molecular dynamics simulations. Common targets between dauricine and hypoxia-related genes were identified through network pharmacology screening. A protein–protein interaction (PPI) network was constructed to identify core targets, followed by Gene Ontology (GO) functional enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Molecular docking was subsequently employed to evaluate the binding affinities between dauricine and the candidate core targets, while molecular dynamics simulations were performed to assess the dynamic stability of the resulting complexes. Additionally, the drug-likeness and safety profiles of dauricine were assessed. The results suggest that dauricine may exert its anti-hypoxic effects by modulating candidate core targets, including ESR1, PIK3CA, and MTOR, and by acting on key signaling pathways such as PI3K-Akt, MAPK, and mTOR. This study provides a theoretical foundation for the further investigation of dauricine as a multi-target candidate for intervention in hypoxia and establishes a bioinformatics basis for subsequent experimental validation. Full article
(This article belongs to the Special Issue Molecular Biology in Drug Design and Precision Therapy, 2nd Edition)
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25 pages, 10724 KB  
Article
Olive Leaf Extract Suppresses Sebogenesis and Inflammation via AKT/ERK and SREBP-1/PPAR-γ Signaling in Human Sebocytes
by Jeeyoung Kim, Ye-Won Jo, Weon Jeong Bang, Kwang Won Lee, Yung Hyup Joo, Sung Hyeon Lee and Chang-Seok Lee
Curr. Issues Mol. Biol. 2026, 48(6), 549; https://doi.org/10.3390/cimb48060549 (registering DOI) - 23 May 2026
Abstract
This study evaluated olive leaf extract (OLE) as a multifunctional dermocosmetic candidate for sebum-related and inflammatory responses relevant to oily and acne-prone skin using an axis-aligned in vitro panel: (i) sebocyte lipogenesis, (ii) inflammatory mediator production in keratinocytes, and (iii) fibroblast-mediated collagen gel [...] Read more.
This study evaluated olive leaf extract (OLE) as a multifunctional dermocosmetic candidate for sebum-related and inflammatory responses relevant to oily and acne-prone skin using an axis-aligned in vitro panel: (i) sebocyte lipogenesis, (ii) inflammatory mediator production in keratinocytes, and (iii) fibroblast-mediated collagen gel contraction. In addition, supportive mechanistic evidence for the sebum-related effects of OLE was obtained by examining signaling proteins associated with sebocyte lipogenesis, including PPAR-γ and SREBP-1. As a result, OLE significantly inhibited linoleic acid-induced lipid accumulation in SEB-1 sebocytes without cytotoxicity. In HaCaT keratinocytes, OLE significantly reduced the production of pro-inflammatory cytokines, including IL-8, TNF-α, and PGE2, induced by Cutibacterium acnes or UVB. In dermal fibroblast-containing collagen gels, OLE enhanced fibroblast-mediated gel contraction. Additionally, analysis of the main mechanisms of lipid inhibition using SEB-1 sebocytes revealed that OLE exerts a dual regulatory role in lipid synthesis and inflammation by downregulating AKT and ERK phosphorylation and inhibiting PPAR-γ and SREBP-1 expression. Furthermore, among the tested extracts, the 70% ethanol extract (OLE70) exhibited the strongest antioxidant activity, the greatest gel contraction response, and the highest content of oleuropein, a major bioactive phenolic compound derived from olive. Like OLE, oleuropein also showed sebum-regulatory activity by reducing lipid accumulation in SEB-1 sebocytes, an inhibitory effect on IL-8 expression in HaCaT keratinocytes, and an inhibitory effect on the expression of PPAR-γ and SREBP-1, which are involved in sebum secretion. Taken together, these findings suggest that OLE and its major phenolic constituent, oleuropein, may modulate sebum-related, inflammatory, oxidative, and dermal remodeling-associated responses in skin cell models. These results should be interpreted as exploratory and provide a basis for further mechanistic and translational investigation. Full article
(This article belongs to the Special Issue Natural Products in Biomedicine and Pharmacotherapy, 2nd Edition)
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15 pages, 40075 KB  
Article
Ablation of CFRP Modified with Copper and Calcium Hydroxyapatites by Femtosecond Laser Pulses for Further Material Cutting and Milling Applications
by Paulius Šlevas, Orestas Ulčinas, Sergej Orlov, Egidijus Vanagas, Anna Bilousova, Denys Baklan and Oleksiy Myronyuk
Polymers 2026, 18(11), 1284; https://doi.org/10.3390/polym18111284 (registering DOI) - 23 May 2026
Abstract
The interaction of femtosecond laser ultrashort pulses with carbon fiber-reinforced polymer (CFRP) based on epoxy resin modified with different ratios of copper hydroxyapatite (Cu-HAp) and calcium hydroxyapatite (Ca-HAp) was investigated. Ablation efficiency was examined for two CFRP groups containing 1 wt% and 5 [...] Read more.
The interaction of femtosecond laser ultrashort pulses with carbon fiber-reinforced polymer (CFRP) based on epoxy resin modified with different ratios of copper hydroxyapatite (Cu-HAp) and calcium hydroxyapatite (Ca-HAp) was investigated. Ablation efficiency was examined for two CFRP groups containing 1 wt% and 5 wt% Cu-HAp in the epoxy matrix, and in both cases, the maximum ablation efficiency was obtained at a fluence of about 6.4–7.5 J/cm2. The corresponding energy-specific volumes were slightly higher for 1 wt% Cu-HAp (6.95 μm3/μJ) and lower for 5 wt% Cu-HAp (6.26 μm3/μJ), and at higher fluence, the ablation efficiency decreased smoothly, indicating a limited optimum fluence window for a given CFRP composition. A similar behaviour was observed for epoxy compounds containing 5 wt% total hydroxyapatite, both for Cu-HAp:Ca-HAp = 75:25 and 50:50 mixtures, which showed nearly identical maxima of energy-specific volume around 6.06 μm3/μJ at 6.4 J/cm2. Epoxy resin without carbon fibers, loaded with 1 wt% and 5 wt% Cu-HAp, exhibited higher energy-specific volumes of about 9–10 μm3/μJ and 9–13 μm3/μJ, respectively, at around 10 J/cm2, followed by a decay of ablation efficiency at higher fluence. Finally, cutting and milling experiments on CFRP demonstrated acceptable surface quality and processing rates under femtosecond laser irradiation, confirming realistic prospects for advanced CFRP fabrication using optimized ablation conditions. Full article
(This article belongs to the Special Issue Fibre-Reinforced Polymer Laminates: Structure and Properties)
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19 pages, 4813 KB  
Article
Transcriptomic Remodeling of Light Harvesting and Photosystem Genes in Acaryochloris marina Under a Low-Irradiance Far-Red Versus High-Irradiance White Light
by Abraham Peele Karlapudi, Vuyyuru Kesavi Himabindhu and Divya Kaur
Plants 2026, 15(11), 1605; https://doi.org/10.3390/plants15111605 (registering DOI) - 23 May 2026
Abstract
Acaryochloris marina is a distinctive cyanobacterium that uses chlorophyll d as its primary photosynthetic pigment and possesses two major light-harvesting systems: membrane-integral chlorophyll-binding Pcb/CBP complexes and water-soluble phycobiliproteins. How these antenna systems respond at the transcriptome level to contrasting light environments remains incompletely [...] Read more.
Acaryochloris marina is a distinctive cyanobacterium that uses chlorophyll d as its primary photosynthetic pigment and possesses two major light-harvesting systems: membrane-integral chlorophyll-binding Pcb/CBP complexes and water-soluble phycobiliproteins. How these antenna systems respond at the transcriptome level to contrasting light environments remains incompletely characterized. Here, we re-analyzed a publicly available RNA-seq dataset for A. marina MBIC11017 (NCBI BioProject PRJNA1130970), comparing cells grown under low-irradiance far-red light (LL-FR; 1.5–2 µmol photons m−2 s−1, 710-nm peak) and high-irradiance white light (HL-WL; 30–35 µmol photons m−2 s−1). Because light quality and irradiance both differ in this experimental design, the two effects cannot be separated; all transcriptional changes are therefore interpreted as responses to the combined LL-FR versus HL-WL contrast rather than to far-red wavelength alone. Of 8439 expressed genes, 1810 (21.4%) were significantly differentially expressed (adjusted p < 0.05). Using GFF-verified locus tags which corrected mis-annotations propagated in earlier analyses, the PS-I core gene set showed a mean log2 fold-change of +1.96 (3.9-fold; 11/11 loci significant), whereas the PS-II core gene set showed a mean log2 fold-change of +1.10 (2.1-fold; 12/20 loci significant). Light-harvesting genes showed the strongest response: 17/18 phycobiliprotein-pathway genes in KEGG amr00196 were upregulated, together with multiple putative Pcb/CBP loci (mean antenna log2FC = +3.51; 11.4-fold). Weighted gene co-expression network analysis placed the antenna-associate genes examined here within a module positively correlated with the LL-FR condition (r = 0.802, p = 0.017), and STRING analysis supported an enriched network of predicted or known protein associations (1115 nodes, 4763 edges; PPI enrichment p < 1.0 × 10−16). Recent matched-irradiance experiments indicate that, at equal photon flux, far-red wavelengths reduce phycobilisome content relative to white light. The transcriptional pattern reported here is therefore most parsimoniously interpreted as predominantly a low-irradiance response, with possible wavelength-associated CA5 contributions that cannot be isolated in the present design. Overall, the analysis reveals coordinated transcript-level changes across plasmid-encoded reacquired phycobiliprotein genes, chromosomal Pcb/CBP loci, chlorophyll biosynthesis genes, and photosystem core genes, consistent with coordinated regulation of light-harvesting components in A. marina. Full article
(This article belongs to the Special Issue Light and Plant Responses)
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12 pages, 1158 KB  
Article
Molecular Characterization of Small Extracellular Vesicles in Pancreatic Cancer Patients Treated with Neoadjuvant Chemotherapy Followed by Stereotactic Body Radiation
by Ravi Kumar Paluri, Ashish Kumar, Yixin Su, Sangeeta Singh, Olumide B. Gbolahan, Ashish Manne, Upender Manne and Gagan Deep
Cancers 2026, 18(11), 1704; https://doi.org/10.3390/cancers18111704 (registering DOI) - 23 May 2026
Abstract
Background/Objectives: Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with limited therapeutic options, a high mortality rate, and poor overall survival, necessitating the development of new therapeutic and diagnostic strategies. This study investigated the potential of plasma-derived small extracellular vesicles (sEVs) as [...] Read more.
Background/Objectives: Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with limited therapeutic options, a high mortality rate, and poor overall survival, necessitating the development of new therapeutic and diagnostic strategies. This study investigated the potential of plasma-derived small extracellular vesicles (sEVs) as a source of molecular biomarkers associated with the treatment response. Methods: Plasma samples were obtained from patients with locally advanced and borderline resectable PDAC at baseline and following neoadjuvant chemotherapy, either FOLFIRINOX (5-FU [fluorouracil], leucovorin, oxaliplatin, and irinotecan) or GEM-ABRAX ( gemcitabine plus nab-paclitaxel), followed by stereotactic body radiation therapy (SBRT). sEVs were isolated from plasma at baseline, after neoadjuvant chemotherapy, and following SBRT, and were characterized by nanoparticle tracking analysis (NTA), transmission electron microscopy (TEM), nano-flow cytometry, and real-time PCR (RT-PCR). Results: The isolated sEVs exhibited an average size of <200 nm, expressed canonical exosome markers (CD63 and CD9), and exhibited pancreatic cancer (PanC)-associated markers, including cholecystokinin A receptor (CCK-AR) and carbohydrate antigen 19-9 (CA19-9). The sEV cargo included several PanC-associated microRNAs (miRNAs). Notably, the expression profiles of these miRNAs demonstrated interpatient variability, though a subset of miRNAs showed statistically significant changes following treatment. Conclusions: These findings support the feasibility of sEV isolation and molecular profiling from patient plasma and warrant further investigation as a potential source of biomarkers in pancreatic cancer. Full article
(This article belongs to the Section Cancer Biomarkers)
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22 pages, 360 KB  
Review
The Effect of Anti-Inflammatory Drugs on the Incidence of Colorectal Cancer
by Marek Misiak, Aleksandra Maciejowska, Maciej Pałęga, Rafał Burek, Anita Gołda, Michalina Dworak, Beata Pawuła-Prgomet, Karol Forysiński and Tomasz Miłek
Pharmaceutics 2026, 18(6), 643; https://doi.org/10.3390/pharmaceutics18060643 (registering DOI) - 23 May 2026
Abstract
Background/Objectives: Chronic inflammation is a key factor in the development and progression of colorectal cancer (CRC). When COX-2 levels and PGE2 production increase, nonsteroidal anti-inflammatory drugs (NSAIDs), including aspirin (ASA) and selective COX-2 inhibitors, such as celecoxib and rofecoxib, are commonly employed. [...] Read more.
Background/Objectives: Chronic inflammation is a key factor in the development and progression of colorectal cancer (CRC). When COX-2 levels and PGE2 production increase, nonsteroidal anti-inflammatory drugs (NSAIDs), including aspirin (ASA) and selective COX-2 inhibitors, such as celecoxib and rofecoxib, are commonly employed. This paper presents the effect of anti-inflammatory drugs, primarilyNSAIDs, on the incidence of CRC. Methods: A comprehensive literature search (119 articles) was conducted with databases such as PubMed. During our research, we used keywords such as colorectal cancer (CRC), nonsteroidal anti-inflammatory drugs (NSAIDs), ASA, COX, precision oncology, and personalized medicine. Results: The development of CRC is primarily associated with chronic inflammation and the actions of COX-2 and prostaglandin E2 (PGE2), which promote cancer cell proliferation and angiogenesis. Anti-inflammatory drugs act by inhibiting the secretion of COX-1 and COX-2 enzymes, which leads to reduced PGE2 production and may limit tumor growth. Aspirin has the best-documented and studied anti-cancer effect; long-term use is associated with a reduced risk of CRC development and mortality through its anti-inflammatory and antiplatelet effects, thereby limiting metastasis. Particularly beneficial effects are observed in patients with mutations in the PIK3CA gene. Factors influencing the effectiveness of CRC treatment include molecular differences and tumor location. Conclusions: The future of CRC treatment and prevention lies in personalized medicine, which accounts for each patient’s genetic profile. Decisions regarding NSAIDs use and CRC prevention should consider the potential benefits and risks of side effects. Full article
17 pages, 3986 KB  
Article
Valorization of Aged Opuntia-Derived Digestate as a Sustainable Nutrient Source for Photosynthetic Microbial Consortia
by Juan Andrés Aguilar-Huesca, Carlos Alexander Lucho-Constantino, Rosa Icela Beltrán-Hernández, Mónica Ivette Sánchez-Contreras and Pablo Antonio López-Pérez
Environments 2026, 13(6), 288; https://doi.org/10.3390/environments13060288 (registering DOI) - 23 May 2026
Abstract
The objective of this study was to evaluate the potential of age Opuntia-derivated digestate (OpDcm) as a nutrient source for photosynthetic microbial consortia (PMC), aiming to reduce dependence on mineral media and promote the valorization of locally available biomass in arid and [...] Read more.
The objective of this study was to evaluate the potential of age Opuntia-derivated digestate (OpDcm) as a nutrient source for photosynthetic microbial consortia (PMC), aiming to reduce dependence on mineral media and promote the valorization of locally available biomass in arid and semi-arid regions. Batch cultures were performed in bubble column photobioreactors (BCPBR) and open raceway (ORPBR) photobioreactors using different proportions of OpDcm and BG110 to assess biomass production, chlorophyll a dynamics, and physicochemical responses of a PMC dominated by Nostoc sp. Chemical characterization showed that OpDcm contained higher levels of K, Ca, Mg, and Mn than BG110, providing a robust ionic matrix for initial growth; however, potential limitations in P, Mg, and Fe were identified. In both BCPBR and ORPBR systems, OpDcm demonstrated nutrient compositions that stimulated biomass production in the PMC at levels comparable to those achieved with BG110 medium. Statistical analyses showed that specific treatments, particularly T1 (10% OpDcm in BCPBR) and T3 (10% OpDcm + 2.5% BG110 in ORPBR), produced biomass yields similar to or higher than those obtained with the conventional BG110 medium. However, chlorophyll a concentration was lower in OpDcm treatments due to limited light transmission and micronutrient constraints. The N–NH4+ dynamics in BCPBR and ORPBR exhibited pronounced variability among the evaluated culture media, spanning from negligible changes (<1 mg L−1) over the entire cultivation period to sustained ammonium production rates of 2–3 mg L−1 day−1. Morphological analysis confirmed a consortium dominated by Nostoc sp., supported by pH values within the optimal range (8–9). Overall, the use of age-Opuntia-derived digestates demonstrated it can serve as a partial or total substitute for a low-cost nutrient source for cyanobacterial cultivation, underscoring their relevance to circular bioeconomy strategies for producing photosynthetic biomass. Full article
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21 pages, 9722 KB  
Article
Variations in Plankton Community Structure Between Freshwater and Saline–Alkaline Waters and Their Correlation with Nutrient Composition in Macrobrachium nipponense
by Shubo Jin, Zhenghao Ye, Hongtuo Fu, Yiwei Xiong, Hui Qiao, Wenyi Zhang and Sufei Jiang
Animals 2026, 16(11), 1591; https://doi.org/10.3390/ani16111591 (registering DOI) - 23 May 2026
Abstract
Essential amino acids and unsaturated fatty acids are key nutritional indicators. The human body preferentially absorbs these compounds, which have beneficial effects on health. In aquatic ecosystems, plankton communities serve as the primary food source for aquatic organisms, playing a crucial role in [...] Read more.
Essential amino acids and unsaturated fatty acids are key nutritional indicators. The human body preferentially absorbs these compounds, which have beneficial effects on health. In aquatic ecosystems, plankton communities serve as the primary food source for aquatic organisms, playing a crucial role in shaping their nutritional composition. In this study, we collected populations of Macrobrachium nipponense and corresponding water samples from ten distinct geographical locations across China. These sites included five freshwater resources and five saline–alkaline water resources. This study measured the ionic composition and plankton community structure of water samples, and analyzed the nutritional components of M. nipponense, aiming to identify indicator taxa linked to the nutritional value in this species. The results show significant differences in both nutritional components and plankton community structures between freshwater and saline–alkaline environments. This suggests a correlation between specific plankton taxa and the nutritional value of M. nipponense. Using relative sequence abundance data from metabarcoding, linear discriminant analysis effect size (LEfSe) analysis identified six plankton indicator taxa at the genus level. Their abundance differed significantly between the two habitat types. The saline–alkaline region had three associated taxa: Cyclotella, Brachionus, and Chaetoceros. In contrast, Arctodiaptomus, Cryptomonas, and Limnoithona were identified as indicator taxa for freshwater regions. Redundancy analysis (RDA) and Pearson correlation analysis revealed that, with the exception of the SY site, the abundance of Chaetoceros and Brachionus in saline–alkaline waters tracked with levels of K+, Ca2+, and HCO3. Meanwhile, at the SZ site, plankton community richness rose with CO32−. Furthermore, the potential correlations between plankton indicator taxa and the formation of specific nutritional components in M. nipponense were explored. These findings highlight the complex interactions among ionic composition, plankton indicator taxa, and nutritional value in M. nipponense. Ultimately, this study can support the development of artificial techniques to regulate the nutritional components of this commercially important species. Full article
(This article belongs to the Section Aquatic Animals)
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14 pages, 2970 KB  
Article
Effect of Chemical Composition of Granulated Blast Furnace Slag on Its Cementitious Properties
by Haiyan Chen, Zhihua Ou, Hai Lin, Jingjing Wu and Min He
Buildings 2026, 16(11), 2073; https://doi.org/10.3390/buildings16112073 (registering DOI) - 23 May 2026
Abstract
Granulated blast furnace slag is a commonly used supplementary cementitious material in cement-based materials. The raw materials for ironmaking and the cooling process affect its composition, thereby influencing its reactivity. Three types of slag were selected and incorporated at replacement ratios of 15%, [...] Read more.
Granulated blast furnace slag is a commonly used supplementary cementitious material in cement-based materials. The raw materials for ironmaking and the cooling process affect its composition, thereby influencing its reactivity. Three types of slag were selected and incorporated at replacement ratios of 15%, 30%, and 50% to investigate the influence of chemical composition on the activity index of slag at different ages and the mechanisms. The results indicate that in the early hydration stage, slag primarily plays a mechanical filling and dilution role (inert volumetric occupation without significant heterogeneous nucleation), while the pozzolanic effect dominates at later stages. Al2O3 in the slag is activated at early ages to form ettringite; at replacement ratios of 30%, C-A-S-H gel is also formed at later ages; when the replacement ratio reaches 50%, the significant reduction in cement clinker content leads to dropping in system alkalinity—corresponding to a 50% reduction in cement-derived Ca(OH)2, the activation of Al2O3 in the slag is not significant at early ages. The effects of glass content, alkali content, specific surface area, CaO + MgO content, quality coefficient, and basicity coefficient on the reactivity become prominent at longer ages. No additional crystalline phases beyond those present in pure cement paste were detected in the cement paste after slag incorporation. This study provides a theoretical basis and data support for the high-value utilization of industrial solid waste in green building materials. Full article
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16 pages, 1495 KB  
Article
DDCATNet: Effective Deep Learning-Based Illumination Color Cast Estimation Approach for Achieving Computational Color Constancy
by Ho-Hyoung Choi
Sensors 2026, 26(11), 3313; https://doi.org/10.3390/s26113313 (registering DOI) - 23 May 2026
Abstract
Digital camera sensors are designed to capture a wide range of incident illuminants, enabling the creation of high-quality images. However, these sensors lack the capability to differentiate between the color of the source illuminant and the actual color (or original color) of the [...] Read more.
Digital camera sensors are designed to capture a wide range of incident illuminants, enabling the creation of high-quality images. However, these sensors lack the capability to differentiate between the color of the source illuminant and the actual color (or original color) of the object being captured. For this reason, the computational color constancy (CCC) was introduced and has been developed over decades. The CCC is an approach to modeling the color perception of the human visual system (HVS) by ensuring accurate object color determination under varying source illuminant conditions. At the core of human visual perception (HVP)-based CCC is attaining higher accuracy in scene illuminant estimation. The emergence of deep convolutional neural networks (DCNNs) was a recent innovation in accurate illuminant estimation, fundamentally transforming the CCC research landscape. Nevertheless, accurate illuminant estimation still remains a huge challenge for both traditional and state-of-the-art (SOTA) approaches. To further advance precision in illuminant estimation, this article presents a novel learning-based illumination color cast estimation approach to HVP-based CCC. Most importantly, the proposed approach is intended to integrate informative features into both channel and spatial regions while preserving long-term dependency feature information with the use of dense skip connections. To achieve these objectives, the proposed Dense Dual Connection Aggregated Transform Network (DDCATNet) architecture is designed to comprise several modules: shallow feature extraction, channel-wise and spatial feature-based Dense Dual Connection (DDC), fusion of the dense channel-wise attention (CA) and spatial attention (SA) branches through a gate mechanism (GM) unit, and aggregate transform. It is worth noting that both the CA blocks and the SA blocks in the DDC module are characterized by dense and cascading connections, meant to preserve long-term feature information and modulate different-level feature information at both global and local scales. The densely connected CA branch (DCA) and the densely connected SA branch (DSA) are also highly effective in securing high-contribution information while suppressing redundant data. The GM unit is integrated at the back of the DDC module, fusing the two DCA and DSA branches to ensure the adaptive merging of useful hierarchical feature information and the extraction of more valuable feature information. As a result, the proposed DDCATNet architecture significantly enhanced precision in illuminant estimation, thereby improving performance. In rigorous experiments on a wide range of datasets, the proposed DDCATNet approach outperformed its SOTA counterparts, validating the efficacy and generalization capabilities, as well as robust camera-invariance, across diverse, single- and multi-illuminant datasets and model architectures. Full article
(This article belongs to the Section Sensing and Imaging)
15 pages, 999 KB  
Article
Properties of Ethanol-Driven Chain Elongation for Caproic Acid Production Under Different pH Conditions: Effect of Inoculum Sources
by Yunhui Pu, Ruoran Liu, Yang Luo, Dan Xu, Bujiamu Ayi, Yang Li, Xinyue Zhang, Qingyuan Wang, Zongkun Hu and Jialing Tang
Water 2026, 18(11), 1263; https://doi.org/10.3390/w18111263 (registering DOI) - 23 May 2026
Abstract
Caproic acid (CA) production through ethanol-driven chain elongation (CE) is a promising pathway to valorize organic wastes. However, the effect of pH and inoculum source on substrate conversion properties and microbial communities was not fully explored. In this study, performance of caproic acid [...] Read more.
Caproic acid (CA) production through ethanol-driven chain elongation (CE) is a promising pathway to valorize organic wastes. However, the effect of pH and inoculum source on substrate conversion properties and microbial communities was not fully explored. In this study, performance of caproic acid production with anaerobic methanogenic sludge (AMS), aerobic sludge (AS) and chain elongation sludge (CES) at different pH conditions (uncontrolled (UN), 5, 6, and 7) were investigated. It was found that microorganisms in all inocula could degrade ethanol, but the consumption rate was different. The AS mainly used substrate for biogas production, without CA accumulation, while AMS and CES could synthesize butyrate and caproate with ethanol and acetate as substrates. At pH UN and 5, excessive ethanol oxidation (EEO) was activated and transformed ethanol into acetate resulting in low CA yield. Increasing pH to 7, the AMS produced more caproate and achieved a higher CA yield (0.36 g-COD/g-COD) than that of CES (0.33 g-COD/g-COD). Microbial communities in raw inocula were different, which led to distinct substrate conversion pathways. After fermentation, Anaerolineaceae was the dominate family in AMS, while Corynebacteriaceae and Dysgonomonadaceae dominated in the reactor with CES, explaining the distinct caproate yield in both reactors. The results of this study provided useful information for constructing ethanol-driven CE processes from organic wastes. Full article
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26 pages, 6639 KB  
Article
Berry Powders as Highly Integrable Food Ingredients: Phenolic and Volatile Compounds Profiling, Comprehensive Nutrient Content Assessment and Spectroscopic Analysis
by Miljana Djordjević, Jelena Tomić, Marijana Djordjević, Aleksandra Bajić, Jelena Živančev, Tilen Zamljen and Jerneja Jakopic
Antioxidants 2026, 15(6), 658; https://doi.org/10.3390/antiox15060658 (registering DOI) - 23 May 2026
Abstract
The presented study aimed to fully characterise berry powders derived from raspberry, blackberry and strawberry (RB, BB, SB) as well as raspberry and blackberry seed powders (RBS, BBS) in terms of proximate composition, the individual profile of minerals, sugars, organic and fatty acids, [...] Read more.
The presented study aimed to fully characterise berry powders derived from raspberry, blackberry and strawberry (RB, BB, SB) as well as raspberry and blackberry seed powders (RBS, BBS) in terms of proximate composition, the individual profile of minerals, sugars, organic and fatty acids, and phenolic and volatile compounds. Additionally, testing of powders’ colour and antioxidant activity, as well as spectroscopic analysis, were also performed. Higher total and individual sugars, organic and phenolic acids, flavonols and anthocyanins content distinguished berry powders from the seed powders. Individually, RB contained significant amounts of citric and chlorogenic acids, BB was superior in cyanidin-3-O-glucoside and quercetin-3-O-rutinoside content, while SB was characterised by high sucrose, fructose, omega-3, and mineral (Ca, Mg, Fe) content. Berry seed powders exhibited remarkable TDF content, beneficial PUFA/SFA ratio, lighter colour, higher individual flavan-3-ols quantity, TPC and DPPH activity compared to berry powders. Mentioned discrepancies between berry and berry seed powders on a compositional level were also visible on ATR-FTIR spectra across all detected regions reflecting bonds attributed to cellulose, lipids, phenols and sugars. Pleasant, predominantly green, fruity and floral aromas were associated with berry powders, whilst additional herbal notes were characteristic of berry seed powders, all derived from the alcohols, aldehydes, esters and ketones as paramount volatile compounds. All examined powders can bear a nutritional claim of “high in” fibre (20.47–65.33%) and Mg (114.52–128.70 mg/100 g), enabling the design of food products packed with nutrients and bioactives while simultaneously reducing fresh fruit and fruit-processing waste. Full article
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14 pages, 2249 KB  
Article
Sintering Behavior and Mineralization Mechanism of Red Mud for Pyrometallurgical Iron Extraction
by Ying Lin, Feng Wang, Jun Jia, Bingqiang Wu and Wei Wu
Processes 2026, 14(11), 1688; https://doi.org/10.3390/pr14111688 (registering DOI) - 23 May 2026
Abstract
To address the resource waste caused by the ineffective recycling of large quantities of red mud, this study proposes an innovative technical route consisting of red mud sintering followed by smelting in a small blast furnace or solid-waste smelting furnace for pyrometallurgical iron [...] Read more.
To address the resource waste caused by the ineffective recycling of large quantities of red mud, this study proposes an innovative technical route consisting of red mud sintering followed by smelting in a small blast furnace or solid-waste smelting furnace for pyrometallurgical iron extraction. Under optimized process conditions—binary basicity of 4.97, a raw material composition of 78.27% wet-based red mud, 15.67% quicklime, and 6.05% fuel, with a solid fuel consumption of 121 kg/t—the produced sinter meets the feeding requirements of blast furnace smelting. The results indicate that the liquid phase generated during red mud sintering mainly consists of composite oxides in the CaO–Al2O3–SiO2 system; calcium aluminosilicate (Ca2Al2SiO7) was detected and inferred to be a potential bonding phase in the sinter matrix. Thermodynamic analysis shows that the Gibbs free energy of Ca2Al2SiO7 is lower than that of calcium ferrite, indicating that its formation is thermodynamically more favorable. The formation amount of this phase is closely related to the Ca/Al ratio, while temperature has a limited influence. In addition, Na2O can react with CaO·2 Al2O3 to form a low-melting-point phase, which significantly reduces the sintering temperature and enhances the fluidity of the liquid phase. These findings provide a new theoretical basis for the sintering of high-alumina ores and offer technical support for the efficient utilization of red mud as well as energy conservation and emission reduction. Full article
(This article belongs to the Section Chemical Processes and Systems)
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26 pages, 9441 KB  
Article
Evaluation of Water Status and Thermal Characteristics of Dried Carrot Half-Slices in Correlation with Physicochemical and Sensory Properties
by Anna Ignaczak, Łukasz Woźniak, Mariola Kozłowska and Hanna Kowalska
Molecules 2026, 31(11), 1789; https://doi.org/10.3390/molecules31111789 - 22 May 2026
Abstract
The aim of the study was to investigate the effect of enriching carrot slices by NFC (not from concentrate) juices from chokeberry (CH), sea buckthorn (SB), cherry (CHE) and carrot (CA) before microwave-vacuum (MVD) and freeze-drying (FD) carrot on the physicochemical and thermal [...] Read more.
The aim of the study was to investigate the effect of enriching carrot slices by NFC (not from concentrate) juices from chokeberry (CH), sea buckthorn (SB), cherry (CHE) and carrot (CA) before microwave-vacuum (MVD) and freeze-drying (FD) carrot on the physicochemical and thermal properties. While water activity (AW) was not dependent on enrichment treatment but only on drying method, NFC juices significantly enriched carrot slices with biocomponents. Freeze-dried samples, as a reference, had significantly lower AW than those dried by the MVD method. Both FD and MVD-dried samples had comparable polyphenol content and DPPH antioxidant activity (AA), but the MVD-dried samples exhibited higher ABTS antioxidant activity. Carrot enrichment in chokeberry and cherry juices resulted in up to six and 10 times higher TPC than in the raw material. In addition, samples enriched in these juices and dried with FD proved to be the most stable in terms of water state and glass transition temperature (61.4 and 69.6 °C) and water activity (approx. 0.10). In FTIR analysis, all samples exhibited similar spectral shapes, indicating similar chemical composition and functional group composition. Only in the spectral region below 900 cm−1 were unique molecular vibrations induced by various organic compounds present. Enriching carrot in juices and MVD can lead to increased hardness (Fmax and breaking work), although this is associated with increased crispness, resulting from the microstructure with a large number of small pores, especially in MVD samples enriched with cherry, chokeberry, and carrot juices, with scores of 8.0–8.4 In this respect, the average crispness rating of the MVD samples (7.2) exceeded that of the FD samples (6.8). If there is a requirement for crunchiness in the future production of dried vegetables as snacks, changes in hardness should be prioritized, along with color and biocomponent content. Full article
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