Microbial community structure in full scale anaerobic mono-and co-digesters treating food waste and animal waste

Koo, Taewoan; Yulisa, Arma; Hwang, Seokhwan

doi:10.1016/j.biortech.2019.03.050

Cited by 38 publications

(11 citation statements)

References 43 publications

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“…For instance, Bacteroides [54], Deferribacteres [55], Tenericutes [56], and Actinobacteria [57] were indicated to be of beneficial for chemotherapy patients. At the genus level, Prevotellaceae_UCG-001 [58] and Rikenellaceae_RC9_gut_group [59] are involved in the degradation of carbohydrates and proteins to produce various organic acids. In addition, Roseburia [60] and Odoribacter [61], species from Bacteroides, are butyrate-producing gut bacteria [62].…”

Section: Discussionmentioning

confidence: 99%

Gastrointestinal Motility and Improvement Efficacy of Shenhuang Plaster Application on Shenque: Identification, Evaluation, and Mechanism

Shi

Ding

et al. 2020

Journal of Immunology Research

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Constipation, a gastrointestinal function disorder, is one of the side effects of paclitaxel (PTX) chemotherapy. Shenhuang plaster (SHP) application on the Shenque acupoint promotes gut motility in clinical settings. In this study, we elucidated the ingredients in SHP and evaluated its effects on PTX-induced constipation using a tumour-bearing mouse model. SHP was prepared using the traditional Chinese plaster preparation method. The ingredients were analysed using UPLC-MS/MS and identified via screening in a standard drug database. The gastrointestinal transit was evaluated by the movement of a fluorescein-labelled dextran in the gastrointestinal tract. A histological study of the mucosa was carried out after haematoxylin and eosin staining. mRNA expression was assessed using real-time RT-PCR, and the foetal microbiota composition was elucidated through 16 s rDNA sequencing and BLAST analysis. Our results indicate that the application of SHP attenuated weight gain inhibition by PTX; however, no inhibitory effect was observed on tumour growth. PTX-induced sluggish intestine, villus, and mucosal base layer damage were significantly improved following the application of SHP. Further, SHP enhanced the stimulation efficiency of PTX on TLR4 and its downstream cytokines, as well as on IL-1β in intestinal cells. SHP combined with PTX reshaped the microbiota, which showed beneficial effects on health. Hence, these results provide evidence that SHP alleviates PTX-induced constipation and intestinal morphological damage but augments the effects of PTX on the expression of cytokines in the TLR4 pathway and IL-1β. Therefore, we propose that SHP stimulates the host immune response to eradicate cancer cells.

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Section: Discussionmentioning

confidence: 99%

Gastrointestinal Motility and Improvement Efficacy of Shenhuang Plaster Application on Shenque: Identification, Evaluation, and Mechanism

Shi

Ding

et al. 2020

Journal of Immunology Research

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“…reported that the use of a mixture of livestock and organic wastes in trash had benefits in terms of the anaerobic digestion process. The amounts of these wastes could also be increased by centralizing and collecting processes 14,15 . The operating parameters of anaerobic digestion for organic materials in general wastes were weighting, selection, breaking, and water content adjustments, etc.…”

Section: Introductionmentioning

confidence: 99%

Effects of operating conditions on biogas production in an anaerobic digestion system of the food and beverage industry

et al. 2020

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BACKGROUND Food residuals (FR) were anaerobically biotransformed to produce biogases (e.g. methane and hydrogen), and different pre‐treatment conditions, including particle size, oil content, pH and salt content, were controlled in this study. The bio‐solids of a municipal solid waste (MSW) from a wastewater treatment plant were added to assess its effect on anaerobic transformation efficiency and gas yields. RESULTS The breaking of FR and the application of MSW were effective in enhancing the transformation efficiency and yield of biogases. The energy transfer efficiency value of the combined FRs used in this study was probably 23%. However, it can be very cost effective to apply arbitrary proportions to treat two types of FR in the anaerobic digestion tank of a wastewater treatment plant. It was also found that the alkalinity and pH value were two major parameters that controlled the success of the transformation. About 0.16–0.17 kg of alkalinity was needed during the anaerobic digestion of 1 kg dry FR, but this requirement was decreased by the treatment applying MSW. Olive oil had higher reducing rates when used as a substitute for heat‐oxidized oil to study the effect of oil content on methylation. CONCLUSION The conditions for anaerobic digestion established in this study were practical for the digestion of FR in wastewater treatment plants in Taiwan. However, we nonetheless found that it was cost effective to use arbitrary proportions for both types of FR and integrate the anaerobic digestion process used in wastewater treatment plants. © 2020 Society of Chemical Industry

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“…Dethiobacter spp. has been found as part of the core microbial community of mesophilic anaerobic digester fed either by animal manure, food waste or by both in a co‐digestion process . It also was found as one of the most common Firmicutes taxa found in four parallel digesters operating under protein‐rich substrate addiction in the feed with stable productivity .…”

Section: Discussionmentioning

confidence: 99%

Microbial community dynamics and process performance of a full‐scale two‐stage anaerobic digester under the replacement from energy crop to poultry manure

Bellucci

Borruso

Brusetti

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND This study assessed the composition and dynamics of the bacterial and archaeal communities in a full‐scale two‐stage anaerobic digester over five months. The plant was fed on a variable mixture of feedstock, in which the energy crops were replaced with poultry manure/litter (from 1.6% to 7.5%) to reduce the operational costs. RESULTS The elevated concentration of ammonia in the digester did not hamper biogas production and its concentration of methane. The low level of acetate, butyrate and propionate in the methanogenesis phase indicated a strong activity of acetotrophic methanogens. PCR‐DGGE and sequencing have demonstrated that the stability of the volatile fatty acid distribution concurred with low level of population shifts as shown by the moving windows analysis. Nevertheless, PCoA analyses revealed that the variation in the digester alimentation and the carbon:nitrogen (C:N) ratio had a key role in assembly the bacterial and archaeal communities. The high ammonia level favoured the growth of Caldicoprobacteraceae and Syntrophomonadaceae, whereas dominant archaea detected belonged to the family of Methanosarcinaceae. CONCLUSION Cheap and readily available N‐rich feedstock could be used safely to decrease the costs of the anaerobic digestion process. © 2019 Society of Chemical Industry

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Microbial community structure in full scale anaerobic mono-and co-digesters treating food waste and animal waste

Cited by 38 publications

References 43 publications

Gastrointestinal Motility and Improvement Efficacy of Shenhuang Plaster Application on Shenque: Identification, Evaluation, and Mechanism

Gastrointestinal Motility and Improvement Efficacy of Shenhuang Plaster Application on Shenque: Identification, Evaluation, and Mechanism

Effects of operating conditions on biogas production in an anaerobic digestion system of the food and beverage industry

Microbial community dynamics and process performance of a full‐scale two‐stage anaerobic digester under the replacement from energy crop to poultry manure

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