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首页> 外文期刊>Food Digestion >In Vitro Gastrointestinal Lipolysis: Replacement of Human Digestive Lipases by a Combination of Rabbit Gastric and Porcine Pancreatic Extracts
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In Vitro Gastrointestinal Lipolysis: Replacement of Human Digestive Lipases by a Combination of Rabbit Gastric and Porcine Pancreatic Extracts

机译:体外胃肠道脂肪分解:通过兔胃和猪胰腺提取物的组合替代人类消化脂肪酶

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摘要

Various combinations of digestive lipases were tested in vitro under conditions simulating the earlier phases of gastrointestinal lipolysis in the stomach and the duodenum. A solid/liquid test meal was mixed first with either human gastric juice or a solution containing gastric lipase, followed by either the addition of human pancreatic juice and bile or the addition of a solution containing pancreatic lipase, colipase, and bile salts. The rate of lipolysis and the composition of the lipolysis products were assessed as a function of time after lipid extraction and analysis by thin-layer chromatography coupled to flame ionization detection. The lipolytic potential of a crude rabbit gastric extract (RGE) associated with porcine pancreatic extract (PPE) was assessed and compared with the rates of lipolysis of the meal triacylglycerols by human digestive lipases recorded under the same in vitro conditions. RGE combined with PPE appeared to be a good substitute for human gastric and pancreatic lipases. RGE and PPE could therefore be used to simulate the gastrointestinal lipolysis of various foods and emulsions in vitro, as well as that of pharmaceutical lipid formulations.
机译:在模拟胃和十二指肠中胃肠道脂肪分解的早期阶段的条件下,体外测试了各种消化脂肪酶的组合。首先将固/液测试粉与人胃液或含有胃脂肪酶的溶液混合,然后再加入人胰液和胆汁或加入含有胰脂肪酶,脂肪酶和胆汁盐的溶液。在脂质提取和通过薄层色谱法结合火焰离子化检测进行分析之后,将脂解的速率和脂解产物的组成作为时间的函数进行评估。评估了与猪胰腺提取物(PPE)相关的兔粗胃提取物(RGE)的脂解潜力,并与在相同体外条件下记录的人消化脂肪酶对膳食三酰基甘油脂的脂解率进行了比较。 RGE结合PPE似乎是人类胃和胰腺脂肪酶的良好替代品。因此,RGE和PPE可用于模拟体外各种食物和乳剂以及药物脂质制剂的胃肠道脂解。

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  • 来源
    《Food Digestion》 |2011年第3期|p.43-51|共9页
  • 作者单位

    GERME S.A., 27 Boulevard Charles Moretti, 13014, Marseille, France;

    GERME S.A., 27 Boulevard Charles Moretti, 13014, Marseille, France;

    GERME S.A., 27 Boulevard Charles Moretti, 13014, Marseille, France;

    GERME S.A., 27 Boulevard Charles Moretti, 13014, Marseille, France;

    GERME S.A., 27 Boulevard Charles Moretti, 13014, Marseille, France;

    Enzymologie Interfaciale et Physiologie de la Lipolyse, UPR 9025, CNRS, Aix-Marseille Université, 31 Chemin Joseph Aiguier, 13402, Marseille Cedex 20, France;

    Enzymologie Interfaciale et Physiologie de la Lipolyse, UPR 9025, CNRS, Aix-Marseille Université, 31 Chemin Joseph Aiguier, 13402, Marseille Cedex 20, France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fat digestion; Fatty acids; Lipase; Lipid analysis; Lipolysis; Solid meal;

    机译:脂肪消化脂肪酸脂肪酶脂分析脂解固体粕;

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