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You searched for: Subject term acetic acid Remove constraint Subject term: acetic acid Subject term acidification Remove constraint Subject term: acidification Subject term feces Remove constraint Subject term: feces
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1. Development and validation of a GC-FID method for the analysis of short chain fatty acids in rat and human faeces and in fermentation fluids

Author:
Serena Scortichini; Maria Chiara Boarelli; Stefania Silvi; Dennis Fiorini
Source:
Journal of chromatography 2020 v.1143 pp. 121972
ISSN:
1570-0232
Subject:
acetic acid; acidification; chemical species; derivatization; ethyl ether; feces; fermentation; flame ionization; hexanoic acid; humans; intestinal microorganisms; metabolites; mice; polyethylene glycol; propionic acid; quantitative analysis; rats
Abstract:
... Short-chain fatty acids (SCFAs) are gut microbiota metabolites recognized for their beneficial effects on the host organism. In this study, a simple and rapid sample preparation method combined to SCFAs analysis by direct injection and gas chromatography coupled with flame ionization detection (GC-FID), for the determination and quantification of eight SCFAs (acetic, propionic, i-butyric, butyric, ...
DOI:
10.1016/j.jchromb.2020.121972

2. Kefiran fermentation by human faecal microbiota: Organic acids production and in vitro biological activity

Author:
Micaela Medrano; María Virginia Gangoiti; Nicolas Simonelli; Analía Graciela Abraham
Source:
Bioactive carbohydrates and dietary fibre 2020 v.24 pp. 100229
ISSN:
2212-6198
Subject:
acetic acid; acidification; bioactive properties; butyric acid; cell death; cell lines; cell proliferation; colorectal neoplasms; culture media; dietary fiber; feces; fermentation; high performance liquid chromatography; humans; intestinal microorganisms; lactic acid; metabolites; models; neoplasm cells; propionic acid; viability
Abstract:
... The present study aimed to evaluate the fermentation of the glucogalactan kefiran by human intestinal microbiota, and to assess the biological effect triggered by the produced metabolites (butyrate and others). For this purpose, an in vitro fermentation model with faeces belonging to ten (10) children aged from 4 months to 3 years-old was used. Short-chain fatty acids (SCFA) and lactic acid produc ...
DOI:
10.1016/j.bcdf.2020.100229

3. Biogas production improvement and C/N control by natural clinoptilolite addition into anaerobic co-digestion of Phragmites australis, feces and kitchen waste

Author:
Xiaowei Wang; Lieyu Zhang; Beidou Xi; Wenjun Sun; Xunfeng Xia; Chaowei Zhu; Xiaosong He; Mingxiao Li; Tianxue Yang; Pengfei Wang; Zhonglei Zhang
Source:
Bioresource technology 2015 v.180 pp. 192-199
ISSN:
0960-8524
Subject:
Phragmites australis; acetic acid; acidification; anaerobic digestion; bentonite; biogas; butyric acid; carbon nitrogen ratio; diatomaceous earth; equations; feces; kitchen waste; methane; methane production; nitrogen; pH; propionic acid; zeolites
Abstract:
... Anaerobic co-digestion (A co-D) performance of Phragmites australis, feces and kitchen waste with addition of clinoptilolite (one main kind of zeolite) was investigated to evaluate the improvement of biogas/methane production and internal mechanism of nitrogen and organics control. A better biogas/methane production was observed by 10% clinoptilolite (v/v) than bentonite and diatomite, with the sh ...
DOI:
10.1016/j.biortech.2014.12.023