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下游加工对酵母功能特性的影响及其对大西洋鲑（Salmo salar）肠道健康的影响。

Impact of down-stream processing on functional properties of yeasts and the implications on gut health of Atlantic salmon (Salmo salar).

机构信息

Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, 1432, Ås, Norway.

Lallemand SAS, 19 rue des Briquetiers, BP59, 31702, Blagnac, France.

出版信息

Sci Rep. 2021 Feb 24;11(1):4496. doi: 10.1038/s41598-021-83764-2.

DOI:10.1038/s41598-021-83764-2
PMID:33627754
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7904851/
Abstract

Yeasts are becoming popular as novel ingredients in fish feeds because of their potential to support better growth and concomitantly ensure good fish health. Here, three species of yeasts (Cyberlindnera jadinii, Blastobotrys adeninivorans and Wickerhamomyces anomalus), grown on wood sugars and hydrolysates of chicken were subjected to two down-stream processes, either direct heat-inactivation or autolysis, and the feed potential of the resulting yeast preparations was assessed through a feeding trial with Atlantic salmon fry. Histological examination of distal intestine based on widening of lamina propria, showed that autolyzed W. anomalus was effective in alleviating mild intestinal enteritis, while only limited effects were observed for other yeasts. Our results showed that the functionality of yeast in counteracting intestinal enteritis in Atlantic salmon was dependent on both the type of yeast and the down-stream processing method, and demonstrated that C. jadinii and W. anomalus have promising effects on gut health of Atlantic salmon.

摘要

酵母作为鱼类饲料中的新型成分越来越受欢迎，因为它们具有支持更好生长和同时确保良好鱼类健康的潜力。在这里，三种酵母（Cyberlindnera jadinii、Blastobotrys adeninivorans 和 Wickerhamomyces anomalus）在木糖和鸡肉水解物上生长，然后经过两种下游处理过程，即直接热失活或自溶，并用大西洋鲑鱼苗进行饲养试验来评估所得酵母制剂的饲料潜力。基于固有层变宽的远端肠组织学检查表明，自溶的 W. anomalus 有效缓解了轻度肠道肠炎，而其他酵母的效果则有限。我们的结果表明，酵母在对抗大西洋鲑鱼肠炎方面的功能取决于酵母的类型和下游处理方法，并表明 C. jadinii 和 W. anomalus 对大西洋鲑鱼的肠道健康具有良好的效果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/0bbe5f8692b2/41598_2021_83764_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/956d05c8a995/41598_2021_83764_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/cc3050b06845/41598_2021_83764_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/3be3f0c49c74/41598_2021_83764_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/2b2adfe1a5e3/41598_2021_83764_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/70321f3c6f3c/41598_2021_83764_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/0bbe5f8692b2/41598_2021_83764_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/956d05c8a995/41598_2021_83764_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/cc3050b06845/41598_2021_83764_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/3be3f0c49c74/41598_2021_83764_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/2b2adfe1a5e3/41598_2021_83764_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/70321f3c6f3c/41598_2021_83764_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63f4/7904851/0bbe5f8692b2/41598_2021_83764_Fig6_HTML.jpg

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