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39 pages, 4828 KB  
Review
Dietary Patterns for Health-Span and Longevity: A Comprehensive Review of Nutritional Strategies Promoting Lifelong Wellness
by Ghizal Fatima, István Dalmadi, Gyula Süllős, Krisztina Takács and Eszter Halmy
Appl. Sci. 2025, 15(22), 12013; https://doi.org/10.3390/app152212013 - 12 Nov 2025
Abstract
Background: The pursuit of longevity has long been central to nutritional science, with growing evidence underscoring the profound influence of dietary patterns on lifespan and overall health. While various diets have been associated with improved well-being, their comparative effects on longevity remain to [...] Read more.
Background: The pursuit of longevity has long been central to nutritional science, with growing evidence underscoring the profound influence of dietary patterns on lifespan and overall health. While various diets have been associated with improved well-being, their comparative effects on longevity remain to be synthesized comprehensively. Main Findings: This review examines the scientific evidence linking major dietary patterns such as the Mediterranean, DASH (Dietary Approaches to Stop Hypertension), plant-based, Blue Zones, intermittent fasting, caloric restriction, and Nordic diets, to longevity and mortality outcomes. The Mediterranean and DASH diets consistently demonstrate reduced cardiovascular and all-cause mortality, while plant-based and Blue Zones diets emphasize whole, minimally processed foods that enhance metabolic and cardiovascular health. Intermittent fasting and caloric restriction emerge as metabolic modulators with anti-aging potential. The Nordic diet, rich in locally sourced foods like berries and fish, also contributes to lower mortality and improved cardiovascular function. Conclusions: This paper uniquely integrates comparative insights from diverse dietary frameworks, emphasizing their shared principles of nutrient density, moderation, and metabolic balance. By adopting evidence-based elements from these dietary models, individuals can optimize health span and longevity, reinforcing the pivotal role of diet as a cornerstone of preventive and personalized nutrition. Full article
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14 pages, 3083 KB  
Article
Lacticaseibacillus Biosurfactant Production from Cacao Pod Husk Enzymatic Hydrolysates
by María Angélica Angarita-Rangel, Laura Plazas-Tovar, Edgar Ricardo Oviedo-Ocaña and Viviana Sanchez-Torres
Fermentation 2025, 11(11), 641; https://doi.org/10.3390/fermentation11110641 - 12 Nov 2025
Abstract
During cocoa processing, approximately ten times more cacao pod husk (CPH) waste is generated than cacao beans. Due to its high lignocellulosic content, CPH is an alternative feedstock for the production of fermentable sugars and bioproducts. In this study, CPH enzymatic hydrolysates were [...] Read more.
During cocoa processing, approximately ten times more cacao pod husk (CPH) waste is generated than cacao beans. Due to its high lignocellulosic content, CPH is an alternative feedstock for the production of fermentable sugars and bioproducts. In this study, CPH enzymatic hydrolysates were used as a carbon source to produce Lacticaseibacillus biosurfactants. CPH was subjected to alkaline pretreatment followed by enzymatic hydrolysis using the commercial enzyme cocktail Cellic Ctec2. The resulting hydrolysates were used to formulate culture media for growing Lacticaseibacillus rhamnosus and Lacticaseibacillus casei. Cell growth and the activity of extracellular and cell-bound biosurfactants were evaluated. The highest glucose concentration in the hydrolysates (11.45 g/L) was achieved using 15% (w/v) solids loading of alkaline-pretreated CPH and an enzymatic load of 20 FPU/g CPH over 3 h. The maximum emulsification index (E24) was 60%, observed with the extracellular biosurfactant from L. rhamnosus cultured in CPH-based medium without supplementation. L. casei extracellular biosurfactants were effective at inhibiting Pseudomonas aeruginosa PA14 biofilm formation (39–45%) in CPH-based media supplemented with peptone, yeast extract, and both nutrients. These findings highlight the potential of CPH enzymatic hydrolysates as a sustainable carbon source for biosurfactant production with emulsification and antibiofilm activity, contributing to the valorization of cocoa agro-industrial waste. Full article
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18 pages, 1952 KB  
Review
Comprehensive Review on the Distribution, Environmental Fate, and Risks of Antibiotic Resistance Genes in Rivers and Lakes of China
by Jingjie Sun, Cancan Xu, Dongmei Wang, Dongsheng Liu, Guomin Chen, Shiwen Zhao, Jinshan Gao, Yifan Shi, Keyang Jiang, Jiaxin Xu, Zixuan Ma, Yang Chen and Zhiyuan Wang
Water 2025, 17(22), 3228; https://doi.org/10.3390/w17223228 - 12 Nov 2025
Abstract
Antibiotic resistance genes (ARGs) have emerged as globally concerning environmental contaminants, posing serious threats to ecosystem health and public safety. This systematic review summarizes global research trends on ARGs across three key aspects: (i) identification and distribution in river and lake ecosystems, (ii) [...] Read more.
Antibiotic resistance genes (ARGs) have emerged as globally concerning environmental contaminants, posing serious threats to ecosystem health and public safety. This systematic review summarizes global research trends on ARGs across three key aspects: (i) identification and distribution in river and lake ecosystems, (ii) sources and environmental behaviors, and (iii) ecological and human health risks. Concentration data of ARGs in various rivers and lakes across China were compiled to reveal their spatial distribution patterns. The analysis of ARGs sources and environmental behaviors provides essential insights for designing effective mitigation strategies. Furthermore, this review highlights the potential ecological and human health hazards of ARGs and discusses limitations and improvement directions of current risk assessment methodologies. The main findings indicate that ARGs are widely present in rivers and lakes across China; higher abundances occur in eastern and southern regions compared with central–western and northern areas, such as 4.93 × 102–8.10 × 103 copies/mL in Qinghai Lake and 6.7 × 107–1.76 × 108 copies/mL in Taihu Lake. The environmental behaviors of ARGs are highly complex, involving multiple mechanisms and influenced by climatic conditions, nutrient levels, and additional environmental factors. Based on these findings, future efforts should prioritize long-term site-specific monitoring, evaluate their prolonged impacts on aquatic ecosystems, and develop integrated risk assessment models to support evidence-based environmental management. Full article
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19 pages, 1020 KB  
Article
Greenhouse Evaluation of the Agronomic Potential of Urban Wastewater-Based Fertilizers: Sewage Sludge and Struvite for Lettuce Production in Sandy Soil
by Andreia F. Santos, Gonçalo Carreira, Mariana Mota, Licínio M. Gando-Ferreira, Margarida J. Quina and Paula Alvarenga
Agronomy 2025, 15(11), 2589; https://doi.org/10.3390/agronomy15112589 - 10 Nov 2025
Abstract
Environmental impacts of urban wastewater treatment plants (WWTPs) can be reduced by recovering nutrients and organic matter (OM) from their streams for agricultural use, decreasing dependence on conventional fertilizers. This study evaluated dehydrated sewage sludge (SS) as an organic amendment and the partial [...] Read more.
Environmental impacts of urban wastewater treatment plants (WWTPs) can be reduced by recovering nutrients and organic matter (OM) from their streams for agricultural use, decreasing dependence on conventional fertilizers. This study evaluated dehydrated sewage sludge (SS) as an organic amendment and the partial replacement of mineral P fertilizers in lettuce cultivation. Struvite, a byproduct of WWTPs, was also investigated as a sustainable P source. A 43-day greenhouse pot experiment assessed SS (12 t/ha) and struvite (at two P rates: 30 and 60 kg P2O5/ha), both alone and combined. SS significantly increased soil OM (p < 0.001), though long-term applications would be required to enhance this effect. The highest struvite rate (60 kg P2O5/ha) yielded the greatest extractable soil-P levels (150 ± 8.1 mg P2O5/kg), while its combination with SS further increased extractable P (>250 mg P2O5/kg), indicating a stable soil P pool. The highest plant dry biomass (8.9 ± 1.1 g, p < 0.05) also occurred under the highest struvite dosage. Complementary effects between SS and struvite were observed in foliar K, Ca, Mg, and S contents, although no significant interaction between both was found for P content. Adequate foliar P levels (0.40–0.52%) were achieved only in treatments containing SS, indicating its essential role in improving plant P nutrition. Full article
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20 pages, 321 KB  
Review
The Relationship of Macro–Micronutrient Intake with Incidence and Progressivity of Hypertension and Microalbuminuria
by Maria Riastuti Iryaningrum, Nanny Natalia Mulyani Soetedjo, Noormarina Indraswari, Dessy Agustini, Yunia Sribudiani and Rudi Supriyadi
Kidney Dial. 2025, 5(4), 53; https://doi.org/10.3390/kidneydial5040053 - 9 Nov 2025
Viewed by 123
Abstract
Hypertension (HTN) and chronic kidney disease (CKD) are significant global health burdens, with microalbuminuria (MA) serving as a key early marker of renal damage and cardiovascular risk. While nutritional interventions are pivotal for management, the evidence for specific nutrients is often complex and [...] Read more.
Hypertension (HTN) and chronic kidney disease (CKD) are significant global health burdens, with microalbuminuria (MA) serving as a key early marker of renal damage and cardiovascular risk. While nutritional interventions are pivotal for management, the evidence for specific nutrients is often complex and inconsistent, creating challenges for clinical guidance. This review critically evaluates current evidence on the interaction among macronutrients, micronutrients, and established dietary approaches and their influence on the development and course of HTN and MA. Strong consensus is present regarding sodium restriction, increased intakes of potassium, and the implementation of dietary patterns like Dietary Approaches to Stop Hypertension (DASH) and the Mediterranean diet to improve blood pressure and renal outcomes. Evidence favors protein moderation (approximately 0.8 g/kg/day), especially from plant sources, and emphasizes carbohydrate quality (e.g., high fiber, low glycemic index) over absolute quantity. The role of micronutrients is more nuanced; maintaining vitamin D sufficiency is protective, but intervention trials for many supplements, including B vitamins and antioxidant vitamins (C and E), have yielded inconsistent results. Several minerals, such as iron and selenium, exhibit a U-shaped risk curve where both deficiency and excess are detrimental, highlighting the risks of unselective supplementation. Ideal nutrition care prioritizes holistic dietary patterns over a focus on single nutrients. Clinical guidance should be founded on sodium reduction and potassium-rich foods, with personalized recommendations for protein and micronutrient supplementation based on an individual’s specific cardiovascular and renal profile. Future research must target nutrients with conflicting evidence to establish clear, evidence-based intake guidelines. Full article
16 pages, 853 KB  
Article
Assessment of Purslane (Portulaca oleracea L.) Total Oxalate Content, Ascorbic Acid, and Total Organic Acids Using Near-Infrared Spectroscopy
by Zornitsa Zherkova, Mima Todorova, Neli Grozeva, Milena Tzanova, Antoniya Petrova, Petya Veleva and Stefka Atanassova
Plants 2025, 14(22), 3426; https://doi.org/10.3390/plants14223426 - 9 Nov 2025
Viewed by 177
Abstract
Purslane (Portulaca oleracea L.) has been regaining its reputation as a valuable food and source of nutrients and biologically active compounds, but a high content of oxalates reduces mineral bioavailability and poses nutritional limitations. This study evaluated the influence of culinary processing [...] Read more.
Purslane (Portulaca oleracea L.) has been regaining its reputation as a valuable food and source of nutrients and biologically active compounds, but a high content of oxalates reduces mineral bioavailability and poses nutritional limitations. This study evaluated the influence of culinary processing on oxalate content in purslane and the potential of near-infrared (NIR) spectroscopy for non-destructive assessment of total oxalates, ascorbic acid, and total organic acid. The ascorbic acid and total organic acid in fresh samples, and the total oxalate content of fresh, blanched, and pickled samples were determined. Culinary treatments (blanching and pickling) reduced oxalate content. The highest oxalate content was observed in fresh samples (33.38–61.84 g/100 g), lower in blanched samples (19.07–34.36 g/100 g), and the lowest content in pickling samples (10.48–18.31 g/100 g). NIR spectra (900–1700 nm) of the analyzed samples were measured, and PLS regression was used for the determination of tested components. The NIR spectroscopy achieved high predictive accuracy for ascorbic acid, total organic acid, and oxalate content. Rcval > 0.98 and SECV values between 0.02 and 0.38 g/100 g for oxalate content. NIR spectroscopy provides a rapid, accurate, and non-destructive alternative to conventional methods for oxalate determination in fresh, blanched, and pickled plant tissues, ascorbic acid and organic acid in fresh samples. Full article
(This article belongs to the Section Phytochemistry)
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27 pages, 4462 KB  
Article
Characterization and Treatment of Academic Wastewater Using Volcanic-Gravel-Constructed Wetlands: A Study in Rwanda
by J. Chrisostome Ufitinema, Valens Habimana, Emmanuel Habimana, Antoine Nsabimana and Gunaratna Kuttuva Rajarao
Water 2025, 17(22), 3200; https://doi.org/10.3390/w17223200 - 9 Nov 2025
Viewed by 217
Abstract
Wastewater generated by academic institutions poses an environmental burden due to its composition, including household, food-related waste, and potential microcontaminants such as pharmaceutical and laboratory chemicals. This study evaluated wastewater from eleven academic institutions. Horizontal subsurface flow constructed wetlands (HSFCWs) filled with locally [...] Read more.
Wastewater generated by academic institutions poses an environmental burden due to its composition, including household, food-related waste, and potential microcontaminants such as pharmaceutical and laboratory chemicals. This study evaluated wastewater from eleven academic institutions. Horizontal subsurface flow constructed wetlands (HSFCWs) filled with locally sourced volcanic gravel were tested for treatment performance at a selected site, the University of Rwanda, College of Science and Technology (UR-CST). Six HSFCWs operated continuously for four months: two planted with Cyperus latifolius, two with Juncus effusus, and two unplanted. Academic wastewater showed average concentrations of 715 mg/L COD, 54 mg/L NH4+-N, 9 mg/L NO3-N, and 32 mg/L PO43−-P. A 4-day hydraulic retention time was effective for the treatment process. The HSFCWs achieved removal efficiencies of 69–82% (COD), 66–87% (NH4+-N), 69–90% (NO3-N), and over 90% for TSS and PO43−-P, emphasizing the strong physical and chemical purification capacity of volcanic gravel as confirmed by XRF analysis. Juncus effusus outperformed Cyperus latifolius in biomass (6667 vs. 4389 g/m2) and nutrient assimilation per unit area, removing 3.75× more TP and 1.46× more TN. The desorption capacity of the substrate enabled potential phosphorus recovery of up to 50%. Volcanic gravel-based CWs offer an effective, low-cost, and sustainable approach to wastewater treatment with potential for nutrient recovery. Full article
(This article belongs to the Section Wastewater Treatment and Reuse)
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31 pages, 5971 KB  
Article
Nitrogen Fertilization: Field Performance of an Amino-Acid-Based Fertilizer in Sessile Oak Reforestation
by Marie Lambropoulos, Sebastian Raubitzek, Georg Goldenits, Hans Sandén and Kevin Mallinger
Nitrogen 2025, 6(4), 100; https://doi.org/10.3390/nitrogen6040100 - 7 Nov 2025
Viewed by 225
Abstract
Early seedling survival is a key determinant of reforestation success under increasingly variable climatic conditions. Fertilizers used to mitigate nutrient limitations are believed to mitigate early establishment stress, but their effectiveness under heterogeneous field conditions remains uncertain. This study specifically tests whether an [...] Read more.
Early seedling survival is a key determinant of reforestation success under increasingly variable climatic conditions. Fertilizers used to mitigate nutrient limitations are believed to mitigate early establishment stress, but their effectiveness under heterogeneous field conditions remains uncertain. This study specifically tests whether an amino-acid-based nitrogen fertilizer can provide a more efficient and ecologically sustainable Nitrogen source compared with conventional mineral formulations. Using a dataset of 6238 seedlings from seven operational Austrian reforestation sites, we quantify amendment performance and examine interactions with relief, soil depth, water availability, and management practices. We apply CatBoost to identify influential predictors of mortality and summarize results across repeated evaluations. Further, for the reported settings, we can reliably predict tree seedling mortality for three out of four seedlings, with an average model accuracy of 76.4% and an AUC of 0.82 across sites. The arginine-based fertilizer increased survival probabilities by up to 15% on moist, deep soils but showed no consistent benefit under shallow or drought-prone conditions. The results highlight the potential of amino-acid-based N supply as a more ecologically aligned alternative and support operational decisions on when and where fertilizers may improve oak establishment under changing climatic conditions. Full article
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18 pages, 1936 KB  
Article
Revealing the Impact of Pasteurization and Derivatization Chemistry on the Fatty Acid Profile of Dairy Cream: A Comparative Approach
by Aleksandra Bogumiła Florkiewicz, Gaja Gużewska, Izabela Arendowska, Agnieszka Ludwiczak, Joanna Rudnicka, Małgorzata Szultka-Młyńska, Tomasz Ligor and Paweł Piotr Pomastowski
Foods 2025, 14(22), 3815; https://doi.org/10.3390/foods14223815 - 7 Nov 2025
Viewed by 370
Abstract
Milk and dairy products are a vital source of nutrients. This study aimed to evaluate the impact of pasteurization and the choice of derivatization method on the fatty acid (FA) profile in cream, a milk fat-rich product. Sixty cream samples (pre- and post-pasteurization) [...] Read more.
Milk and dairy products are a vital source of nutrients. This study aimed to evaluate the impact of pasteurization and the choice of derivatization method on the fatty acid (FA) profile in cream, a milk fat-rich product. Sixty cream samples (pre- and post-pasteurization) were analyzed. Two derivatization procedures were used: acid-catalyzed (1% H2SO4 in methanol following hexane extraction) and alkali-catalyzed (0.2 M KOH in methanol). FA methyl esters (FAMEs) were quantified using GC–FID. A total of 34 FAs were detected. The acid derivatization method was significantly more efficient for quantification, yielding higher overall FA concentrations (e.g., 302.26 μg/mL vs. 62.66 μg/mL pre-pasteurization). Pasteurization significantly altered the FA profile by reducing the overall content of FAs (especially SFAs and PUFAs), suggesting thermal degradation. Conversely, concentrations of FAs with unusual chain lengths (e.g., C15:1, C17:0) increased, likely due to release from complex lipids. The FA profile in cream is sensitive to processing. Acid-catalyzed derivatization is the recommended method for accurate quantitative FA analysis in cream. The stability of milk fat confirms its importance for product quality and potential use in various bioformulations. Full article
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19 pages, 4489 KB  
Article
Soil Nutrient Variability Analysis of Typical Planting Patterns in Agricultural Reclamation Areas of the Southern Dianchi Lake Basin
by Zhuojun Miao, Junen Wu, Lei Zhao, Feng Cheng and Yuchen Zhang
Agronomy 2025, 15(11), 2566; https://doi.org/10.3390/agronomy15112566 - 7 Nov 2025
Viewed by 329
Abstract
This study investigates the effects of typical planting patterns on soil nutrient accumulation and associated environmental impacts in agricultural reclamation areas of the southern Dianchi Lake Basin. Taking the cut flower cultivation area in Dahewei Village, Jinning District, Yunnan Province, as the research [...] Read more.
This study investigates the effects of typical planting patterns on soil nutrient accumulation and associated environmental impacts in agricultural reclamation areas of the southern Dianchi Lake Basin. Taking the cut flower cultivation area in Dahewei Village, Jinning District, Yunnan Province, as the research site, we compared soil physicochemical properties, nutrient contents, and their correlations with environmental factors under open-field and greenhouse cultivation, and analyzed the characteristics of soil fertility changes and non-point-source pollution risks in greenhouses. We found that greenhouse cultivation is associated with altered soil physicochemical properties, including smaller aggregate sizes, increased soil moisture content (from 30.15% to 32.20%), elevated pH values (from 7.11 to 7.23), and 79% higher electrical conductivity compared to open-field conditions (620.82 vs. 347.60 μS cm−1, p < 0.01). Compared with open-field systems, greenhouse cultivation exhibited greater nutrient accumulation, particularly for total nitrogen (TN) and available potassium (AK) in the 0–10 cm topsoil layer, demonstrating pronounced surface enrichment. Additionally, greenhouse conditions showed weaker correlations between soil nutrients and meteorological factors but stronger inter-nutrient coupling. Enhanced soil moisture and temperature conditions were associated with reduced nutrient leaching but simultaneously increased surface nutrient enrichment and salinization risks. These findings provide quantitative evidence for precision fertilization strategies, optimized irrigation management, and targeted soil health interventions in intensive greenhouse systems. The results have practical applications for preventing surface nutrient accumulation and long-term salinization in protected agriculture. Full article
(This article belongs to the Section Agroecology Innovation: Achieving System Resilience)
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22 pages, 497 KB  
Article
Essential and Toxic Elements in Cereal-Based Complementary Foods for Children: Concentrations, Intake Estimates, and Health Risk Assessment
by Ana Claudia Rocha Gerônimo, Elaine Silva de Pádua Melo, Regiane Santana da Conceição Ferreira Cabanha, Marta Aratuza Pereira Ancel and Valter Aragão do Nascimento
Sci 2025, 7(4), 164; https://doi.org/10.3390/sci7040164 - 6 Nov 2025
Viewed by 229
Abstract
Cereal-based complementary foods are widely consumed by children, yet limited data exist on their elemental composition and potential health risks. This study quantified As, Cd, Co, Cr, Cu, Fe, K, Mn, Mg, Mo, Ni, P, Pb, Se, Si, V, and Zn in eight [...] Read more.
Cereal-based complementary foods are widely consumed by children, yet limited data exist on their elemental composition and potential health risks. This study quantified As, Cd, Co, Cr, Cu, Fe, K, Mn, Mg, Mo, Ni, P, Pb, Se, Si, V, and Zn in eight commercial cereal-based products collected in Campo Grande, Brazil, using inductively coupled plasma optical emission spectrometry (ICP OES). Arsenic, cadmium, cobalt, and chromium were consistently below the detection limit. Phosphorus and potassium were the predominant elements across brands, followed by Fe, Mg, and Zn, with significant inter-brand variability (Kruskal–Wallis, p < 0.05). Lead was detected in Brands 1–5 (0.11–0.41 mg/kg), but it was below the limit of detection (LOD = 0.003 mg/L) in the other samples. Estimated daily intake (ID) values at 30 g/day and 90 g/day showed that Fe, Zn, Mn, and Se frequently met or exceeded dietary reference intakes for children aged 1–3 years, while Cu, Ni, and P remained below tolerable levels. Comparison with tolerable upper intake levels and ATSDR minimal risk levels indicated that higher consumption (90 g/day) could result in excess intake of Mn, Zn, and Se, with Pb contributing to cumulative hazard indices above the safety threshold (HI > 1). These findings emphasize the dual role of cereal-based foods as important nutrient sources and potential contributors to excessive trace element exposure in young children. Full article
22 pages, 3177 KB  
Review
The Emerging Role of Citrulline and Theanine in Health and Disease: A Comprehensive Review
by Xiaokang Lv, Chao Chen, Yan Liang, Yating Song, Jie Liu, Wenxun Chen and Hao Li
Nutrients 2025, 17(21), 3496; https://doi.org/10.3390/nu17213496 - 6 Nov 2025
Viewed by 449
Abstract
Non-proteinogenic amino acids, such as L-citrulline and L-theanine, have garnered attention for their potential health benefits, including enhanced immunity, antioxidant activity, and cardiovascular support. The application of natural amino acids in disease treatment and health supplementation is and will remain a research hotspot [...] Read more.
Non-proteinogenic amino acids, such as L-citrulline and L-theanine, have garnered attention for their potential health benefits, including enhanced immunity, antioxidant activity, and cardiovascular support. The application of natural amino acids in disease treatment and health supplementation is and will remain a research hotspot in pharmaceutics. Plant-derived L-citrulline and L-theanine have demonstrated multifaceted benefits, primarily through mechanisms involving nitric oxide (NO) bioavailability (for L-citrulline) and mitochondrial regulation or immune modulation (for both). Critical gaps are identified: (1) the role of D-amino acids (e.g., D-citrulline and D-theanine) in health and metabolism remains underexplored, particularly regarding chiral-specific bioactivity; (2) derivatives and co-administration strategies of L-forms warrant systematic evaluation for drug. However, while these compounds show promise, evidence is predominantly from animal and cell studies, with limited long-term human data on efficacy and safety. Potential side effects, dosing limitations, and sourcing challenges are discussed. This review emphasizes the need for cautious interpretation of their benefits, acknowledging that while promising, some effects, such as those on muscle protein synthesis, require further validation compared to established nutrients like branched-chain amino acids. By bridging mechanistic insights with translational challenges, this work aims to guide future research toward sustainable nutraceutical production. Full article
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15 pages, 1789 KB  
Article
Shift in Metabolite Profiling and Mineral Composition of Edible Halophytes Cultivated Hydroponically Under Increasing Salinity
by Giedrė Samuolienė, Audrius Pukalskas and Akvilė Viršilė
Metabolites 2025, 15(11), 724; https://doi.org/10.3390/metabo15110724 - 5 Nov 2025
Viewed by 210
Abstract
Background: A significant concern today is the dependence on low-quality water sources, such as saline water, in hydroponic systems, especially due to the scarcity of freshwater. Halophytes and salt-tolerant species have emerged as viable candidates for cultivation in saline hydroponics. However, their agronomic [...] Read more.
Background: A significant concern today is the dependence on low-quality water sources, such as saline water, in hydroponic systems, especially due to the scarcity of freshwater. Halophytes and salt-tolerant species have emerged as viable candidates for cultivation in saline hydroponics. However, their agronomic performance and physiological responses within hydroponic systems require further investigation. Objectives: This research aims to explore the potential of edible halophytes grown in saline nutrient solutions within hydroponic systems within salt-tolerant ranges, focusing on their metabolic profiles and mineral accumulation. Methods: Plantago coronopus (L.), Portulaca oleracea (L.), and Salsola komarovii (Iljin) were grown in walk-in controlled environment chambers in deep water culture hydroponic systems, at 0, 50, 100, 150, and 200 mM·L−1 NaCl salinity; 16h, 250 µmol m−2 s−1, and wide LED spectrum lighting was maintained. Results: A significant decrease in organic acids, and fresh and dry weight under high saltinity was observed in Plantago coronopus and Portulaca oleracea, but not in Salsola komarovii. An increase in hexoses, particularly glucose, violaxanthin and β-carotene, P⁺ and Zn2⁺, along with a decrease in lutein, K⁺ and Ca2⁺ levels across salinity levels from 0 to 200 mM NaCl was observed in all treated halophytes. Increased salinity did not significantly affect total protein accumulation. Conclusions: These findings reveal that different shifts in osmolytes, mineral elements, and biomass accumulation in tested halophytes indicate species-dependent osmotic adjustment to increased salinity and may be attributed to the morphological differences among halophytic grasses, dicot halophytes, and those with succulent leaves or stems. The PCA score scatterplot results excluded the response of Plantago coronopus from other tested halophytes; also, it demonstrated that Portulaca oleracea was more sensitive to the hydroponic solution salinity compared to Salsola komarovii and Plantago coronopus. Full article
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20 pages, 1815 KB  
Article
Study on the Response of Young Seedlings of the Woody Chinese Medicinal Plant Phellodendron chinense Schneid. to Fertilization
by Jingjing Guan, Libao Wang, Junjie Lei and Bing Zhang
Forests 2025, 16(11), 1688; https://doi.org/10.3390/f16111688 - 5 Nov 2025
Viewed by 175
Abstract
This study aimed to investigate the effects of fertilization with different N, P, and K ratios on the growth and nutrient accumulation of seedlings of the woody Chinese medicinal herb Phellodendron chinense. Seedling growth, nutrient accumulation, and physiological characteristics under different NPK [...] Read more.
This study aimed to investigate the effects of fertilization with different N, P, and K ratios on the growth and nutrient accumulation of seedlings of the woody Chinese medicinal herb Phellodendron chinense. Seedling growth, nutrient accumulation, and physiological characteristics under different NPK ratios were measured and analyzed by using an L(9)(33) orthogonal experimental design on the seed source of Phellodendron chinense from Chongqing. The results showed that reasonable NPK rationing significantly promoted the growth of seedlings of Phellodendron chinense, effectively increasing the aboveground and belowground biomass of Phellodendron chinense seedlings, as well as the N, P, and K contents in the leaves. The principal component analysis, combined with a comprehensive evaluation, showed that the T1 treatment group exhibited the optimal fertilization effect, a finding that highlights the importance of balanced nutrient rationing. Full article
(This article belongs to the Section Forest Ecophysiology and Biology)
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16 pages, 3460 KB  
Article
Loofah Sponge Has a Potential Multifunctional Role for Enhanced Tetracycline Biodegradation: Carrier, Putative Nutrient Releaser and Solubilizer
by Lei Yu, Yujing Zheng and Jing Liang
Processes 2025, 13(11), 3567; https://doi.org/10.3390/pr13113567 - 5 Nov 2025
Viewed by 153
Abstract
The microbial removal of antibiotics is an environmentally friendly solution to antibiotic contamination in water. However, the main limitations for its application are the difficulty of direct utilization of antibiotics by bacteria and incomplete removal. In this study, a strain of Bacillus thuringiensis [...] Read more.
The microbial removal of antibiotics is an environmentally friendly solution to antibiotic contamination in water. However, the main limitations for its application are the difficulty of direct utilization of antibiotics by bacteria and incomplete removal. In this study, a strain of Bacillus thuringiensis ZY that removed tetracycline (TC) as a sole carbon source was applied. Strain ZY was able to remove 50 mg/L TC at an efficiency higher than 70%, while the removal efficiency was increased to 100% after the immobilization by Loofah (Lfr). Meanwhile, the removal time was shortened from 6 to 4.5 d. Compared with the free ZY, the TC removal efficiency of Lfr-ZY was significantly improved under various conditions (temperature, pH and NaCl concentration). The removal efficiency of Lfr-ZY was still higher than 50% after 11 cycles, with strong removal ability and stability. In addition, the enhancement of TC bio-removal by Lfr-ZY involved the combination of the protection, adsorption, detoxification, putative nutrient release and solubilization effects of Lfr. The promising results suggest that the Lfr-based strategy has the potential for solving the problems of a lack of nutrient substrate for TC removal and the inability to remove it completely. Full article
(This article belongs to the Section Chemical Processes and Systems)
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