Characteristic lipids and their potential functions generated during the aging process of yak ghee

IF 6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

LWT - Food Science and Technology Pub Date : 2024-11-28 DOI:10.1016/j.lwt.2024.117129

Yufang Li , Jinze He , Wentao Zheng, Yanan Shi, Aixiang Huang

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引用次数: 0

Abstract

Yak ghee is an important food source for Tibetan herdsmen; however, the lipid composition, functional lipids changed and best consumption period during the aging process of yak ghee have not been determined. In this study, we identified a total of 386 lipids in Zhongdian yak ghee during aging, including glycerolipids (292 species), glycerophospholipids (47 species), sphingolipids (24 species), and fatty acyls (23 species). The lipids in yak ghee dynamically changed during aging, with the final product containing several polyunsaturated fatty acids (including linolenic acid, docosahexaenoic acid, and eicosapentaenoic acid), indicating its high nutritional value. Lipid fingerprints of yak ghee during aging revealed that triglyceride (16:0/16:0/20:5) and triglyceride (18:1/18:3/21:0) etc. were the characteristic lipids in aged yak ghee. The characteristic lipids in yak ghee were mainly enriched in the biosynthesis of unsaturated fatty acids, glycerolipid metabolism, and ether lipid metabolism pathways. This study provides insight into the lipid changes of yak ghee during aging, which offers a theoretical basis for the development of high-value yak ghee products.

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来源期刊

LWT - Food Science and Technology 工程技术-食品科技

CiteScore

11.80

自引率

6.70%

发文量

1724

审稿时长

65 days

期刊介绍： LWT - Food Science and Technology is an international journal that publishes innovative papers in the fields of food chemistry, biochemistry, microbiology, technology and nutrition. The work described should be innovative either in the approach or in the methods used. The significance of the results either for the science community or for the food industry must also be specified. Contributions written in English are welcomed in the form of review articles, short reviews, research papers, and research notes. Papers featuring animal trials and cell cultures are outside the scope of the journal and will not be considered for publication.