文献类型：期刊文献

中文题名：茶籽象胁迫对油茶籽物质组成和功能的影响

英文题名：Effects of Curculio chinensis infestation on the material composition and functional properties of Camellia oleifera seeds

作者：李庆杨[1,2] 崔茂凯[1] 沈丹玉[1] 倪张林[1] 莫润宏[1] 张威[1] 舒金平[1] 刘毅华[1]

第一作者：李庆杨

机构：[1]中国林业科学研究院亚热带林业研究所,杭州311400;[2]浙江大学农业与生物技术学院农药与环境毒理研究所,杭州310058

年份：2026

卷号：41

期号：1

起止页码：121-127

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：茶籽象;油茶籽;抗氧化功能;相关性分析;差异标志物

外文关键词：Curculio chinensis;Camellia oleifera seeds;antioxidant capacity;correlation analysis;differential biomarkers

分类号：TS222

摘要：为探究茶籽象(Curculio chinensis)胁迫对油茶籽物质组成及功能特性的影响,本研究以长林4号油茶为对象,比较了虫害籽与正常籽的物质组成及抗氧化特性差异。结果表明,虫害可显著改变油茶籽的脂肪酸组成和矿质元素含量:虫害籽单不饱和脂肪酸(C18∶1)质量分数下降3.96%,而多不饱和脂肪酸(C18∶2、C18∶3)质量分数上升28.85%和25.93%;矿质元素Mg、P、Ti、Zn、Mo等质量分数整体降低10.41%~48.57%。抗氧化系统呈现特异性响应:脂氧合酶(LOX)活性升高17.38%,但多酚氧化酶(PPO)活性下降11.42%,总酚含量减少13.32%,导致FRAP、DPPH和ABTS+自由基清除能力降低9.58%~16.51%。通过相关性分析发现,抗氧化能力与C18∶2/C18∶3、PUFA等脂肪酸及Mn/Ba等微量元素呈显著负相关(R≥0.7,P<0.05)。OPLS-DA分析筛选出C18∶2、C18∶3、PUFA及Mn等9个关键差异标志物(VIP>1)。本研究明确了虫害胁迫下油茶籽品质劣变的关键生化特征,可为油茶籽油的安全生产和茶籽象的绿色防控提供参考。
To investigate the effects of Curculio chinensis infestation on the material composition and functional properties of Camellia oleifera seeds,Changlin 4 Camellia oleifera was selected as the research object in this study,and the differences in material composition and antioxidant characteristics between insect-damaged and healthy seeds were compared.The results demonstrated that insect infestation significantly altered the fatty acid composition and mineral element content of Camellia oleifera seeds.Specifically,the content of monounsaturated fatty acid(C18∶1)in insect-damaged seeds decreased by 3.96%,while the contents of polyunsaturated fatty acids(C18∶2 and C18∶3)increased by 28.85%and 25.93%,respectively;the contents of mineral elements such as Mg,P,Ti,Zn,and Mo were generally reduced by 10.41%-48.57%.The antioxidant system exhibited a specific response∶lipoxygenase(LOX)activity increased by 17.38%,whereas polyphenol oxidase(PPO)activity decreased by 11.42%,and the total phenol content was reduced by 13.32%,leading to a decrease of 9.58%-16.51%in the free radical scavenging capacities(FRAP,DPPH,and ABTS+).Correlation analysis revealed that antioxidant capacity was significantly negatively correlated with fatty acids such as C18∶2,C18∶3 and PUFA),as well as trace elements such as Mn/Ba(R≥0.7,P<0.05).OPLS-DA analysis screened out nine key differential biomarkers(VIP>1),including C18∶2,C18∶3,PUFA,and Mn.This study clarified the key biochemical characteristics of quality deterioration of Camellia oleifera seeds under pest stress,which provides reference for the safe production of Camellia oleifera seed oil and the green prevention and control of Curculio chinensis.