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16,027 Results Found

  • Review
  • Open Access
3 Citations
6,643 Views
22 Pages

21 April 2025

Food digestion in the gastrointestinal is a series of processes consisting of chemical and physical digestion. Recently, developing foods with controlled digestion in the stomach may attract more attention. Hydrogel foods are useful tools for designi...

  • Feature Paper
  • Article
  • Open Access
16 Citations
8,289 Views
12 Pages

9 May 2020

High-solids anaerobic digestion of organic fraction of municipal solid waste often shows inefficient biomethane recovery due to mass transfer limitations. Consequently, this study presents a two-stage anaerobic digestion process combining high-solids...

  • Review
  • Open Access
77 Citations
8,932 Views
16 Pages

The Effect of Digestion and Digestibility on Allergenicity of Food

  • Isabella Pali-Schöll,
  • Eva Untersmayr,
  • Martina Klems and
  • Erika Jensen-Jarolim

21 August 2018

Food allergy prevalence numbers are still on the rise. Apart from environmental influences, dietary habits, food availability and life-style factors, medication could also play a role. For immune tolerance of food, several contributing factors ensure...

  • Abstract
  • Open Access
2,095 Views
2 Pages

INFOGEST 2.0 Digestion Method: Characterization of the Sterol Content in the Digestion Reagents

  • Manuel Muñoz-Checa,
  • Mussa Makran,
  • Gabriel López-García,
  • Antonio Cilla,
  • Reyes Barberá,
  • Amparo Alegría and
  • Guadalupe García-Llatas

The INFOGEST digestion method was adapted for the evaluation of sterol bioaccessibility in a plant sterol (PS)-enriched beverage [1]. Recent modifications of the method, such as the addition of gastric lipase and cholesterol esterase, showed that the...

  • Review
  • Open Access
28 Citations
11,639 Views
30 Pages

A Comprehensive Review of the Strategies to Improve Anaerobic Digestion: Their Mechanism and Digestion Performance

  • Xiaoyong Li,
  • Zhi Wang,
  • Yun He,
  • Yuzhong Wang,
  • Shilei Wang,
  • Zehui Zheng,
  • Songtao Wang,
  • Jingliang Xu,
  • Yafan Cai and
  • Hanjie Ying

15 April 2024

Low and unstable digestion performance is a challenging issue for anaerobic digestion, which prompts researchers to develop new strategies. In addition to traditional approaches such as co-digestion, pre-treatment, and recirculation, some emerging st...

  • Article
  • Open Access
2 Citations
2,494 Views
14 Pages

Study of the Effect of Temperature to Optimize the Anaerobic Digestion of Slaughterhouse Sludge by Co-Digestion with Slaughterhouse Wastewater

  • Maria Candel,
  • Laura Ballesteros,
  • Juana Fernandez-Rodriguez,
  • Montserrat Perez and
  • Rosario Solera

The anaerobic co-digestion (ACoD) of sludge (S) and slaughterhouse wastewater (SW) can improve biomethane production and removal efficiency in terms of organic matter. The aim of this study was to determine the impact of temperature on co-digestion,...

  • Feature Paper
  • Article
  • Open Access
30 Citations
5,745 Views
12 Pages

Anaerobic Digestion of Steam-Exploded Wheat Straw and Co-Digestion Strategies for Enhanced Biogas Production

  • Fokion Kaldis,
  • Denise Cysneiros,
  • James Day,
  • Kimon-Andreas G. Karatzas and
  • Afroditi Chatzifragkou

22 November 2020

Wheat straw (WS) is considered a favourable substrate for biogas production. However, due to its rigid structure and high carbon to nitrogen (C/N ratio), its biodegradability during anaerobic digestion (AD) is usually low. In the present study, the e...

  • Article
  • Open Access
1,937 Views
23 Pages

10 February 2025

Multifilm mass transfer theory has been used in conjunction with developing a new in vitro starch digestion model and applied to assessing starch digestion kinetics. One significance of this research is that this in vitro model has similar dynamics,...

  • Article
  • Open Access
13 Citations
3,536 Views
18 Pages

2 September 2020

A two-stage temperature-phased mesophilic anaerobic digestion assay was carried out to study the interaction between various biological pretreatment conditions and the possible synergistic co-digestion of microalgae and primary sludge. The study of g...

  • Article
  • Open Access
145 Citations
9,064 Views
17 Pages

26 April 2019

Hydrothermal carbonisation (HTC) has been identified as a potential route for digestate enhancement producing a solid hydrochar and a process water rich in organic carbon. This study compares the treatment of four dissimilar digestates from anaerobic...

  • Review
  • Open Access
9 Citations
4,499 Views
36 Pages

Enhancing Bioplastic Degradation in Anaerobic Digestion: A Review of Pretreatment and Co-Digestion Strategies

  • Mohamed Shafana Farveen,
  • Raúl Muñoz,
  • Rajnish Narayanan and
  • Octavio García-Depraect

25 June 2025

The increasing production of bioplastics worldwide requires sustainable end-of-life solutions to minimize the environmental burden. Anaerobic digestion (AD) has been recognized as a potential technology for valorizing waste and producing renewable en...

  • Article
  • Open Access
19 Citations
4,890 Views
12 Pages

14 December 2019

In this paper, the anaerobic co-digestion of three different organic wastes, including livestock manure, slaughterhouse waste, and agricultural by-products (ABs), was carried out to enhance the efficiency of mono-digestion of livestock manure. The ch...

  • Article
  • Open Access
60 Citations
8,983 Views
13 Pages

Thermophilic Anaerobic Digestion: Enhanced and Sustainable Methane Production from Co-Digestion of Food and Lignocellulosic Wastes

  • Aditi David,
  • Tanvi Govil,
  • Abhilash Kumar Tripathi,
  • Julie McGeary,
  • Kylie Farrar and
  • Rajesh Kumar Sani

8 August 2018

This article aims to study the codigestion of food waste (FW) and three different lignocellulosic wastes (LW) (Corn stover (CS), Prairie cordgrass (PCG), and Unbleached paper (UBP)) for thermophilic anaerobic digestion to overcome the limitations of...

  • Article
  • Open Access
677 Views
18 Pages

Synergistic Role of Low-Strength Ultrasound and Co-Digestion in Anaerobic Digestion of Swine Wastewater

  • Changgee Lee,
  • Jaehun Gwon,
  • Min-Sang Kim,
  • Taehwan Lee,
  • Uijeong Han,
  • Yeongmi Park,
  • Hongmok Jo and
  • Si-Kyung Cho

29 September 2025

Swine manure poses significant challenges for anaerobic digestion due to its low carbon-to-nitrogen (C/N) ratio and elevated ammonia concentrations, both of which restrict methane generation. This study investigated the impact of integrating low-inte...

  • Article
  • Open Access
6 Citations
2,498 Views
17 Pages

Algal Biomass Accumulation in Waste Digestate after Anaerobic Digestion of Wheat Straw

  • Lyudmila Kabaivanova,
  • Juliana Ivanova,
  • Elena Chorukova,
  • Veneren Hubenov,
  • Lilyana Nacheva and
  • Ivan Simeonov

Cultivation of microalgae in waste digestate is a promising cost-effective and environmentally friendly strategy for algal biomass accumulation and valuable product production. Two different digestates obtained as by-products of the anaerobic ferment...

  • Article
  • Open Access
15 Citations
4,116 Views
18 Pages

The Influence of Biochar Augmentation and Digestion Conditions on the Anaerobic Digestion of Water Hyacinth

  • Jessica Quintana-Najera,
  • A. John Blacker,
  • Louise A. Fletcher,
  • Douglas G. Bray and
  • Andrew B. Ross

30 March 2022

The augmentation of biochar (BC) during anaerobic digestion (AD) has been identified as a potential strategy for improving the AD of complex feedstocks. This study evaluates the influence of oak wood biochar 450 °C and fermentation conditions dur...

  • Article
  • Open Access
5 Citations
2,407 Views
13 Pages

Effects of Polyethylene Terephthalate Microplastics on Anaerobic Mono-Digestion and Co-Digestion of Fecal Sludge from Septic Tank

  • Tingting Ma,
  • Nana Liu,
  • Yuxuan Li,
  • Ziwang Ye,
  • Zhengxian Chen,
  • Shikun Cheng,
  • Luiza C. Campos and
  • Zifu Li

3 October 2024

Anaerobic digestion (AD) is one of the most significant processes for treating fecal sludge. However, a substantial amount of microplastics (MPs) have been identified in septic tanks, and it remains unclear whether they impact the resource treatment...

  • Article
  • Open Access
10 Citations
3,581 Views
19 Pages

Anaerobic Digestion of Poultry Droppings in Semi-Continuous Mode and Effect of Their Co-Digestion with Physico-Chemical Sludge on Methane Yield

  • Marie-Noël Mansour,
  • Thomas Lendormi,
  • Nicolas Louka,
  • Richard G. Maroun,
  • Zeina Hobaika and
  • Jean-Louis Lanoisellé

30 March 2023

Poultry waste is rich in organic matter, which allows its treatment by the process of anaerobic digestion (AD) to reinforce economic and environmental green strategies. The aim of this study is to assess the technical feasibility of poultry waste AD...

  • Article
  • Open Access
11 Citations
4,005 Views
14 Pages

2 July 2019

This study examines the effect of mixing on the performance of anaerobic digestion of cow manure in Chinese dome digesters (CDDs) at ambient temperatures (27–32 °C) in comparison with impeller mixed digesters (STRs) and unmixed digesters (U...

  • Article
  • Open Access
4 Citations
3,225 Views
12 Pages

Observation and Analysis of In Vitro Digestibility of Different Breads Using a Human Gastric Digestion Simulator

  • Motomi Shibasaki,
  • Tatsuro Maeda,
  • Takayoshi Tanaka,
  • Kenjiro Sugiyama,
  • Hiroyuki Kozu,
  • Ritsuna Noguchi,
  • Takumi Umeda,
  • Tetsuya Araki and
  • Isao Kobayashi

12 October 2024

The digestion behavior of a food bolus comprising bread particles in the presence of gastric peristalsis remains poorly understood. This study systematically investigated the effect of bread type on in vitro gastric digestion behavior using a human g...

  • Article
  • Open Access
11 Citations
4,045 Views
13 Pages

Challenges of the Application of In Vitro Digestion for Nanomaterials Safety Assessment

  • Nádia Vital,
  • Ana Catarina Gramacho,
  • Mafalda Silva,
  • Maria Cardoso,
  • Paula Alvito,
  • Michel Kranendonk,
  • Maria João Silva and
  • Henriqueta Louro

28 May 2024

Considering the increase in the production and use of nanomaterials (NM) in food/feed and food contact materials, novel strategies for efficient and sustainable hazard characterization, especially in the early stages of NM development, have been prop...

  • Article
  • Open Access
1,136 Views
17 Pages

Effect of Co-Digestion Ratios and Temperature on Biomethane Production in Anaerobic Co-Digestion of Cheese Whey and Tomato Waste

  • Irfan Ullah,
  • Mohamed Arselene Ayari,
  • Mohammed Talhami,
  • Probir Das,
  • Maryam Al-Ejji,
  • Saoussen Benzarti and
  • Alaa H. Hawari

Tomato processing and dairy industries generate significant effluents worldwide, contributing to environmental pollution and nutrient loss. Anaerobic digestion (AD) offers a sustainable solution by treating these effluents while recovering nutrients...

  • Review
  • Open Access
9 Citations
6,159 Views
23 Pages

Cellular Self-Digestion and Persistence in Bacteria

  • Sayed Golam Mohiuddin,
  • Sreyashi Ghosh,
  • Han G. Ngo,
  • Shayne Sensenbach,
  • Prashant Karki,
  • Narendra K. Dewangan,
  • Vahideh Angardi and
  • Mehmet A. Orman

Cellular self-digestion is an evolutionarily conserved process occurring in prokaryotic cells that enables survival under stressful conditions by recycling essential energy molecules. Self-digestion, which is triggered by extracellular stress conditi...

  • Review
  • Open Access
301 Citations
15,409 Views
25 Pages

21 March 2019

Recent studies have shown that anaerobic co-digestion (AnCoD) is superior to conventional anaerobic digestion (AD). The benefits of enhanced bioenergy production and solids reduction using co-substrates have attracted researchers to study the co-dige...

  • Article
  • Open Access
28 Citations
5,935 Views
16 Pages

12 January 2022

To investigate the lipid digestive behaviors of human and infant formulas and analyze the differences between them, we investigated the fat globule particle size distribution, lipolysis rate, and fatty acid release of infant formulas with different f...

  • Article
  • Open Access
12 Citations
3,486 Views
17 Pages

7 July 2022

Background: Reduced nutrient digestibility due to low-protein (LP) diets occurring in the foregut or hindgut of pigs remains unclear. Methods: Growing barrows (21.7 ± 1.7 kg) were allotted into LP and high-protein (HP) diet treatments. Ileal d...

  • Article
  • Open Access
875 Views
17 Pages

11 June 2025

This laboratory study investigated the anaerobic co-digestion process of the halophyte S. ramosissima (Sram) together with swine manure (SM) in different mixing ratios in batch and continuous reactor experiments. In the batch experiments, a methane y...

  • Article
  • Open Access
3 Citations
2,287 Views
12 Pages

29 July 2023

This article reports on an experiment that aimed to investigate the effects of digestate and cosubstrate input with varying biochar concentrations on methane production in anaerobic digestion processes. The findings revealed distinct trends in methan...

  • Feature Paper
  • Review
  • Open Access
562 Citations
37,282 Views
16 Pages

A Review of the Processes, Parameters, and Optimization of Anaerobic Digestion

  • Jay N. Meegoda,
  • Brian Li,
  • Kush Patel and
  • Lily B. Wang

Anaerobic digestion is a technology that has been used by humans for centuries. Anaerobic digestion is considered to be a useful tool that can generate renewable energy and significant research interest has arisen recently. The underlying theory of a...

  • Article
  • Open Access
22 Citations
9,304 Views
17 Pages

pH-Based Control of Anaerobic Digestion to Maximise Ammonium Production in Liquid Digestate

  • Lonestar Gonde,
  • Tristan Wickham,
  • Hendrik Gideon Brink and
  • Willie Nicol

19 January 2023

A typically overlooked by-product of the anaerobic digestion process is the liquid digestate. The digestate is generally high in valuable nutrients like nitrogen, potassium, and phosphorus, which are essential for plant growth. This indicates that di...

  • Article
  • Open Access
2,110 Views
10 Pages

13 January 2025

In this study, the effects of physicochemical and biochemical digestion conditions on β-arbutin stability and bioaccessibility were investigated. β-Arbutin, at doses that correspond to its natural occurrence in plant materials (i.e., 1&ndas...

  • Article
  • Open Access
16 Citations
3,979 Views
15 Pages

To enhance anaerobic fermentation during food waste (FW) digestion, pretreatments can be applied or the FW can be co-digested with other waste. In this study, lipase addition (LA), hydrothermal pretreatment (HTP), and a combination of both methods (H...

  • Article
  • Open Access
8 Citations
3,133 Views
11 Pages

(1) Background: The continuously increasing demand for renewable energy sources renders anaerobic digestion as one of the most promising technologies for renewable energy production. Due to the animal production intensification, manure is being used...

  • Article
  • Open Access
3 Citations
2,457 Views
17 Pages

Fractionation of Anaerobic Digestion Liquid Effluents through Mechanical Treatment and Filtration

  • Themistoklis Sfetsas,
  • Georgia Sarikaki,
  • Afroditi G. Chioti,
  • Vassilis Tziakas,
  • Polycarpos Falaras and
  • George Em. Romanos

18 July 2023

Organic wastes and by-products from several activities, including food industries, farming, and animal husbandry, are a hygiene threat when aerobically decomposed. Therefore, their management is crucial for public health. In this direction, anaerobic...

  • Article
  • Open Access
1 Citations
2,400 Views
13 Pages

28 July 2022

Biogas production by anaerobic digestion from different wastes represents a growing interest in the panel of renewable energy. Digestate has already been a subject of numerous studies as part of microalgal culturing because it is still rich in nutrie...

  • Review
  • Open Access
9 Citations
3,658 Views
15 Pages

The Use of Fungi of the Trichoderma Genus in Anaerobic Digestion: A Review

  • Adrianna Kubiak,
  • Agnieszka A. Pilarska,
  • Agnieszka Wolna-Maruwka,
  • Alicja Niewiadomska and
  • Katarzyna Panasiewicz

17 December 2023

Plant waste biomass is the most abundant renewable energy resource on Earth. The main problem with utilising this biomass in anaerobic digestion is the long and costly stage of degrading its complex structure into simple compounds. One of the promisi...

  • Article
  • Open Access
3 Citations
7,675 Views
15 Pages

20 February 2023

The Integrated Agriculture System in Indonesia was established in 2009. By the end of 2018, 752 small-scale anaerobic digestion (AD) systems treating beef cattle manure were successfully installed. In this study, the system was studied comprehensivel...

  • Article
  • Open Access
11 Citations
4,159 Views
10 Pages

Digestion Profiles of Protein in Edible Pork By-Products

  • Xianming Zeng,
  • Bowen Lv,
  • Kexin Zhang,
  • Zhe Zhu,
  • Qiuyue Li,
  • Bulei Sheng,
  • Di Zhao and
  • Chunbao Li

13 October 2022

Edible pork by-products are widely consumed in many areas, whereas their digestion characteristics have rarely been evaluated. This work compared the digestibility of protein in boiled pork liver, heart, tripe and skin with tenderloin as a control. C...

  • Article
  • Open Access
20 Citations
6,934 Views
15 Pages

Optimizing Biogas Production and Digestive Stability through Waste Co-Digestion

  • Rao Muhammad Ahmad,
  • Sabiha Javied,
  • Ambreen Aslam,
  • Saud Alamri,
  • Qamar uz Zaman,
  • Ayesha Hassan and
  • Nabeela Noor

6 April 2024

This study aimed to enhance the nutrient balance of municipal solid waste (MSW), characterized by a high carbon-to-nitrogen (C/N) ratio, which is a critical factor in the anaerobic digestion process. The investigation involved the addition of MSW, wh...

  • Article
  • Open Access
20 Citations
4,718 Views
14 Pages

18 May 2022

The need to embrace a circular economy model for sustainable growth and development is increasing due to the rise in human population and the dwindling natural resources available to meet the demands for energy and food. In this study, anaerobic dige...

  • Article
  • Open Access
3 Citations
3,254 Views
23 Pages

17 December 2020

A significant expansion of anaerobic digestion (AD) processes would certainly result in a reduction in the current dependence on fossil fuels. The operational costs, the large amounts of digestate generated and the expenses of dealing with it and the...

  • Article
  • Open Access
17 Citations
5,040 Views
20 Pages

29 April 2021

Rice straw is an agricultural residue produced in abundant quantities. Open burning and plowing back the straw to the fields are common practices for its disposal. In-situ incorporation and burning cause emissions of greenhouse gas and particulate ma...

  • Review
  • Open Access
37 Citations
9,041 Views
26 Pages

Anaerobic Digestion of Blood from Slaughtered Livestock: A Review

  • Tasnia Hassan Nazifa,
  • Noori M. Cata Saady,
  • Carlos Bazan,
  • Sohrab Zendehboudi,
  • Adnan Aftab and
  • Talib M. Albayati

9 September 2021

Blood from livestock slaughtering imposes a high organic pollution load and risks. If it is discharged untreated to sewer systems, it increases the organic pollution load on wastewater treatment plants by 35–50%. This paper reviews blood anaerobic di...

  • Article
  • Open Access
8 Citations
3,782 Views
10 Pages

14 September 2023

Cockroaches of the subfamily Panesthiinae (family Blaberidae) are among the few major groups of insects feeding on decayed wood. Despite having independently evolved the ability to thrive on this recalcitrant and nitrogen-limited resource, they are a...

  • Article
  • Open Access
22 Citations
4,539 Views
13 Pages

The Digestibility of Hibiscus sabdariffa L. Polyphenols Using an In Vitro Human Digestion Model and Evaluation of Their Antimicrobial Activity

  • Yassine Oulad El Majdoub,
  • Giovanna Ginestra,
  • Giuseppina Mandalari,
  • Paola Dugo,
  • Luigi Mondello and
  • Francesco Cacciola

10 July 2021

Hibiscus sabdariffa L. (H.s.) is a polyphenolic-rich plant commonly consumed either as a beverage or spice. The aim of the present study was to evaluate the in vitro digestibility of H.s. polyphenols using an in vitro model of digestion which simulat...

  • Article
  • Open Access
7 Citations
3,162 Views
16 Pages

20 May 2023

Effects of two foods with bioactive constituents (black tea brew, BTB and grape seed powder, GSP) on lipid digestibility was studied. Lipolysis inhibitory effect of these foods was examined using two test foods (cream and baked beef) with highly diff...

  • Feature Paper
  • Article
  • Open Access
21 Citations
5,772 Views
21 Pages

Digested Sludge Quality in Mesophilic, Thermophilic and Temperature-Phased Anaerobic Digestion Systems

  • Iryna Lanko,
  • Jakub Hejnic,
  • Jana Říhová-Ambrožová,
  • Ivet Ferrer and
  • Pavel Jenicek

12 October 2021

Anaerobic digestion (AD) technology is commonly used to treat sewage sludge from activated sludge systems, meanwhile alleviating the energy demand (and costs) for wastewater treatment. Most often, anaerobic digestion is run in single-stage systems un...

  • Review
  • Open Access
1 Citations
952 Views
21 Pages

Advances in Biochar-Assisted Anaerobic Digestion: Effects on Process Stability, Methanogenic Pathways, and Digestate Properties

  • Anita S. Leovac Maćerak,
  • Dragana S. Žmukić,
  • Nataša S. Duduković,
  • Nataša S. Slijepčević,
  • Aleksandra Z. Kulić Mandić,
  • Dragana D. Tomašević Pilipović and
  • Đurđa V. Kerkez

Sludge, a by-product of wastewater treatment, contains harmful components that negatively impact the environment. One of the most ecologically viable and cost-effective methods for sludge treatment is anaerobic digestion, which produces biogas and st...

  • Article
  • Open Access
6 Citations
5,932 Views
8 Pages

3 July 2017

Anaerobic digestate from cattle manure fermentation may pose a threat to the environment. How to stabilize the digestate’s characteristics so that they do not disturb the bio-system is a critical issue for digestate management. Chemically enhanced pr...

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