Lipidomics analysis of rice bran during storage unveils mechanisms behind dynamic changes in functional lipid molecular species
文献类型： 外文期刊
作者： Liu, Xuan 1 ; Li, Zhong 1 ; OuYang, Bo 2 ; Wang, Weifei 3 ; Lan, Dongming 1 ; Wang, Yonghua 1 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Biochem & Cell Biol, Ctr Excellence Mol Cell Sci, State Key Lab Mol Biol, Shanghai 200031, Peoples R China
3.Sericultural & Argi Food Res Inst, Guangdong Acad Agr Sci, Key Lab Funct Foods, Minist Agr & Rural Affairs,Guangdong Key Lab Agr P, 133 Yiheng St,Dongguanzhuang Rd, Guangzhou 510610, Peoples R China
4.Guangdong Youmei Inst Inteligent Biomfg Co Ltd, Foshan 528200, Guangdong, Peoples R China
关键词： Rice bran; Bioactive compounds; Lipidomics; Metabolic pathways; Storage duration; Rancidity
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2024 年 447 卷
页码：
收录情况： SCI
摘要： Rice bran, recognized for its rich lipids and health-beneficial bioactive compounds, holds considerable promise in applications such as rice bran oil production. However, its susceptibility to lipid hydrolysis and oxidation during storage presents a significant challenge. In response, we conducted an in-depth metabolic profiling of rice bran over a storage period of 14 days. We focused on the identification of bioactive compounds and functional lipid species (25 acylglycerols and 53 phospholipids), closely tracking their dynamic changes over time. Our findings revealed significant reductions in these lipid molecular species, highlighting the impact of rancidity processes. Furthermore, we identified 19 characteristic lipid markers and elucidated that phospholipid and glycerolipid metabolism were key metabolic pathways involved. By shedding light on the mechanisms driving lipid degradation in stored rice bran, our study significantly advanced the understanding of lipid stability. These information provided valuable insights for countering rancidity and optimizing rice bran preservation strategies.
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