Fermented blueberry pomace with antioxidant properties improves fecal microbiota community structure and short chain fatty acids production in an in vitro mode
Autor: | Siyi Pan, Ting Wu, Yuxin Cheng, Weiwei Cao, Shuxin Tang, Fuqiang Liang, Xiaoyun Xu, Yajing Fang, Chu Xueqi |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Lactobacillus casei biology Chemistry Ruminococcus Pomace food and beverages 04 agricultural and veterinary sciences biology.organism_classification 040401 food science 01 natural sciences law.invention Probiotic 0404 agricultural biotechnology law Polyphenol 010608 biotechnology Lactobacillus Fermentation Food science Food Science Bifidobacterium |
Zdroj: | LWT. 125:109260 |
ISSN: | 0023-6438 |
Popis: | As a by-product of juice industry, blueberry pomace is still a rich source of phytochemicals with potential benefits for human health. However, studies about blueberry pomace utilization are insufficient. In this study, the blueberry pomace was fermented by the probiotic Lactobacillus casei and the potential function of fermented blueberry pomace (FBP) was evaluated, including the antioxidant activity, the regulation of fecal microbiota and the production of short chain fatty acids (SCFA). The results showed that FBP obtained improved antioxidant activity which was positively correlated with the content of polyphenols. The microbiota community structure was improved by FBP through inhibiting Escherichia coli, Enterococcus and the ratio of Firmicutes and Bacteroidetes as well as improving Bifidobacterium, Ruminococcus, Lactobacillus, Akkermansia and butyrate-producing bacteria. The SCFA, especially acetic, butyric and lactic acids, were remarkably increased because of FBP-supplementation. Further, UPLC-MS analysis showed that forty-six phenolic compounds were detected in FBP while only thirty-eight in non-fermented blueberry pomace (NFBP), explaining the speculation of this study that the phytochemicals in FBP might increase the gut-improving function. This study suggested that the Lactobacillus casei-fermentation was useful for utilizing blueberry pomace as a potential candidate for functional foods. |
Databáze: | OpenAIRE |
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