Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (8): 1734-1742.DOI: 10.3969/j.issn.1004-1524.2022.08.17

• Food Science • Previous Articles     Next Articles

Effects of intestinal conditions and particle size on in vitro digestion of processed Carya cathayensis Sarg.

SHAO Yuchen1,2(), MU Honglei2, CHEN Hangjun2, YIN Junyi1, FANG Xiangjun2, WU Weijie2, LIU Ruiling2, HAN Yanchao2, GAO Haiyan1,2,*()   

  1. 1. School of Food Science, Nanchang University, Nanchang 330036, China
    2. Key Laboratory of Postharvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-03-16 Online:2022-08-25 Published:2022-08-26
  • Contact: GAO Haiyan

Abstract:

This article explored the effects of different intestinal conditions and particle size on in vitro digestion of processed Carya cathayensis Sarg.(CCS), matrix degradation rate (MDI), digestibility of fat and protein, total phenols and antioxidant activity of processed CCS were analyzed under different bile salt concentration, intestinal pH values and pancreatic lipase concentrations according to the intestinal conditions of healthy adults and people with exocrine pancreatic insufficiency (EPI). The results showed particle size had the most significant effect on processed CCS in vitro digestion, and the MDI, antioxidant activity and digestibility of fat and protein of small particle processed CCS were higher than those of large particle processed CCS. The pH and bile salt were associated with fat digestion and antioxidant activity. When pH value was 7 and bile salt concentration was 10 mmol·L-1, the fat digestion effect was better. The digestibility of fat and protein would be high when the concentration of pancreatic lipase was high. Therefore, people with EPI can take in the appropriate amount of prebiotics and trypsin preparation to improve the nutrient digestion and utilization rate of CCS products.

Key words: Carya cathayensis Sarg., intestinal condition, particle size, in vitro digestion, antioxidant activity

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