文献类型：期刊文献

中文题名：采后干燥对油茶粕中酚组成轮廓影响

英文题名：Impact of Post-Harvest Drying on the Phenolic Composition Profile of Camellia oleifera Cake

作者：崔茂凯[1,2] 李庆杨[1] 佘佳荣[3] 汤富彬[1] 刘毅华[1]

第一作者：崔茂凯

机构：[1]中国林业科学研究院亚热带林业研究所,杭州311400;[2]南京林业大学,南京210037;[3]湖南省林业科学院,长沙410000

年份：2025

卷号：40

期号：9

起止页码：133-139

中文期刊名：中国粮油学报

外文期刊名：Journal of the Chinese Cereals and Oils Association

收录：;北大核心:【北大核心2023】；

基金：浙江省科学技术厅“领雁”研发攻关计划项目(2023C02034)。

语种：中文

中文关键词：干燥;微波;热风;油茶粕;酚;差异代谢物

外文关键词：drying;microwave;hot air;Camellia oleifera cake;phenolics;differential metabolites

分类号：S794.4;TS221

摘要：本研究运用代谢组学技术和多元数据分析,系统探究了热风干燥和微波干燥对油茶粕酚类组成差异的影响。结果显示,微波干燥处理后油茶粕的总酚含量显著高于热风干燥26.19%。在油茶粕中共鉴定出黄酮、酚酸、鞣质、木脂素和香豆素等化合物,共计861种。通过正交偏最小二乘判别分析(OPLS-DA),发现有251个酚类差异代谢物受干燥方式显著影响,特别是香豆素类和黄酮类物质表现出最为显著的变化,其中黄酮类差异代谢物数量达119种。进一步鉴定出109个干燥敏感型酚类物质(DSPs),包括3-(3-羟基苯基)丙酸甲酯、2,4-二甲氧基苯乙酮、2,4,5-三甲氧基苯甲酸和邻茴香酸,这些化合物的显著上调均超过15.95倍。代谢通路分析显示,干燥处理主要影响了类黄酮生物合成和苯丙烷代谢等关键代谢途径。
Metabolomics and multivariate data analysis were employed to systematically investigate the differences in phenolic composition of Camellia oleifera cake subjected to hot air drying(HD)and microwave drying(MD).It was found that the total phenolic content in MD-treated oil tea cake was significantly 26.19%higher than that treated with HD.A total of 861 phenolic compounds were identified(flavonoids,phenolic acids,tannins,and lignans and coumarins).Through Orthogonal Partial Least Squares Discriminant Analysis(OPLS-DA),it was found that 251 phenolic metabolites were significantly affected by the drying method,particularly,coumarins and flavonoids exhibited the most significant changes,with the number of differential flavonoid metabolites of 119.Further analysis led to the identification of 109 drying-sensitive phenolic compounds(DSPs),including 3-(3-hydroxyphenyl)propionic acid methyl ester,2,4-dimethoxybenzophenone,2,4,5-trimethoxybenzoic acid,and o-anisic acid,all of which were significantly upregulated by more than 15.95-fold.Metabolic pathway analysis indicated that the drying treatments primarily affected key metabolic pathways such as flavonoid biosynthesis and phenylpropanoid metabolism.