Abstract:

The chemical composition and antimicrobial activity of flavonoids from Sedum aizoon L. against Aeromonas in vitro were investigated, and the effect of flavonoid treatment on the quality of fresh pork during frozen storage for 6 months was also explored. The results showed that kaempferol, quercetin dihydrate, and catechin were the most predominant flavonoids from S. aizoon L. Flavonoids exhibited antibacterial activity to Aeromonas in vitro, which caused membrane damage, disruption of the bacterial surface, and internal ultrastructure, and resulted in the leakage of reducing sugars and proteins. Meanwhile, flavonoid treatment retarded the microbial growth and deteriorates of pork characteristics, including pH value, total volatile basic nitrogen (TVB-N), texture, and sensory evaluation during frozen storage, thereby prolonged the shelf life. Their results suggested that flavonoids from S. aizoon L. offer a promising choice for food safety and preservation.

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Antimicrobial activity of flavonoids from <em>Sedum aizoon</em> L. against <em>Aeromonas</em> in culture medium and in frozen pork

^{State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China,}

^{College of Biological and Environmental Sciences, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Wanli University, Ningbo, China,}

Hongfei Wang, Email: nc.ude.ubn@iefgnohgnaw.

^{Corresponding author.}

^{Correspondence}
Hongfei Wang, State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, Zhejiang, China.
Email: nc.ude.ubn@iefgnohgnaw,

Received 2019 Jan 18; Revised 2019 Jun 18; Accepted 2019 Jun 22.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Notes

Xu F, Cao S, Wang C, et al. Antimicrobial activity of flavonoids from Sedum aizoon L. against Aeromonas in culture medium and in frozen pork. Food Sci Nutr. 2019;7:3224–3232. 10.1002/fsn3.1178 [CrossRef] [Google Scholar]

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