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通过定量脂质组学和化学计量学比较11种红花油茶的脂质谱和营养品质。

Comparison of lipid profiles and nutritional quality of 11 red-flowered oil-tea camellia through quantitative lipidomics and chemometrics.

作者信息

Deng Zhuang, Yang Jianmei, Zhang Xinye, Dun Chunyao, Hu Zhubing, Wang Guodong, Tang Qi, Zheng Tao, Zeng Haitao

机构信息

School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723001, Shaanxi, China.

Hubei Academy of Forestry, Wuhan 430075, Hubei, China.

出版信息

Food Chem X. 2025 Jul 4;29:102738. doi: 10.1016/j.fochx.2025.102738. eCollection 2025 Jul.

DOI:10.1016/j.fochx.2025.102738
PMID:40686882
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12275141/
Abstract

The aim of this study was to characterize the lipid profiles of 11 red-flowered oil-tea camellia (ROCs) using UPLC-MS/MS-based lipidomics. 618 lipids were identified, with TGs, PCs, PEs, PIs, DGs, and FFAs as the predominant lipid subclasses. TC1 exhibited the highest content of total lipids and GLs, followed by TC4 and DBXN. GPs were significantly elevated in TC1, TC2, TC3, and TS, whereas CC had the highest content of FFAs. CC, TS, DBXN, and TC lines exhibited unique lipid profiles suitable for functional product development. HCA and OPLS-DA demonstrated significant lipids variations among 11 ROCs, with 3 distinct clusters: CC-DBXN-XN, TC lines, and ZJ-GN-TS. Glycerophospholipid metabolism and glycerolipid metabolism were identified as key metabolic pathways, with LPC(18:2), PA(18:2_18:2), PA(16:0_18:2), PC(18:3_18:3), and TG(18:1_18:2_18:4) serving as characteristic differential lipids across 11 ROCs. Our findings provided insights into quantitative differential lipids as potential biomarkers for directional breeding and functional product development across ROCs.

摘要

本研究旨在利用基于超高效液相色谱-串联质谱的脂质组学技术对11个红花油茶（ROCs）的脂质谱进行表征。共鉴定出618种脂质，其中甘油三酯（TGs）、磷脂酰胆碱（PCs）、磷脂酰乙醇胺（PEs）、磷脂酰肌醇（PIs）、甘油二酯（DGs）和游离脂肪酸（FFAs）为主要脂质亚类。TC1的总脂质和糖脂含量最高，其次是TC4和DBXN。甘油磷脂（GPs）在TC1、TC2、TC3和TS中显著升高，而CC的FFAs含量最高。CC、TS、DBXN和TC系表现出适合功能性产品开发的独特脂质谱。热图聚类分析（HCA）和正交偏最小二乘法判别分析（OPLS-DA）显示11个ROCs之间存在显著的脂质差异，分为3个不同的簇：CC-DBXN-XN、TC系和ZJ-GN-TS。甘油磷脂代谢和甘油酯代谢被确定为关键代谢途径，溶血磷脂酰胆碱（LPC，18:2）、磷脂酸（PA，18:2_18:2）、磷脂酸（PA，16:0_18:2）、磷脂酰胆碱（PC，18:3_18:3）和甘油三酯（TG，18:1_18:2_18:4）作为11个ROCs的特征性差异脂质。我们的研究结果为定量差异脂质作为红花油茶定向育种和功能性产品开发的潜在生物标志物提供了见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/d37c6d211290/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/5110c37b2887/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/b7780c1ec628/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/36b47d278574/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/5aab03ce3ddd/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/4a2c40a6b1eb/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/abf73cf2db5b/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/cd5cdad446a1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/d37c6d211290/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/5110c37b2887/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/b7780c1ec628/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/36b47d278574/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/5aab03ce3ddd/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/4a2c40a6b1eb/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/abf73cf2db5b/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/cd5cdad446a1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7745/12275141/d37c6d211290/gr8.jpg

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