甘肃陇南和浙江金华绿茶的理化成分及体外抗氧化差异性研究

王永慧; 王多锋; 李学敏; 史田斌; 武立栋; 刘在国; 张广忠; 赵风云

doi:10.13305/j.cnki.jts.2025.05.009

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茶叶科学 ›› 2025, Vol. 45 ›› Issue (5) : 852-864. DOI: 10.13305/j.cnki.jts.2025.05.009

研究报告

甘肃陇南和浙江金华绿茶的理化成分及体外抗氧化差异性研究

王永慧¹, 王多锋², 李学敏³, 史田斌², 武立栋⁴, 刘在国², 张广忠², 赵风云^1,*

作者信息 +

Study on the Physicochemical Components and in Vitro Antioxidant Differences of Green Tea from Longnan, Gansu and Jinhua, Zhejiang

WANG Yonghui¹, WANG Duofeng², LI Xuemin³, SHI Tianbin², WU Lidong⁴, LIU Zaiguo², ZHANG Guangzhong², ZHAO Fengyun^1,*

Author information +

文章历史 +

摘要

为探究产地和品种对绿茶品质的影响,对分别种植在甘肃陇南和浙江金华地区的8个茶树品种所制绿茶的茶汤色泽、理化成分和体外抗氧化能力进行测定,并运用相关性分析和聚类分析对两地绿茶进行综合评价。结果表明,金华绿茶的茶汤颜色偏绿、色泽更明亮、滋味清爽回甘;陇南绿茶的茶多酚、黄酮、咖啡碱、维生素C（VC）、儿茶素、矿质元素含量,以及DPPH自由基清除能力、ABTS自由基清除能力、羟自由基（·OH）清除能力和总抗氧化能力（T-AOC）高于金华绿茶。陇南的‘云峰5号'和金华的‘嘉茗1号'具有较好的品质和抗氧化能力。相关性分析结果表明,茶汤色泽、理化成分含量与体外抗氧化能力密切相关,其中茶多酚、VC和表没食子儿茶素没食子酸酯（EGCG）与体外抗氧化能力呈极显著正相关（P<0.01）;聚类分析将所有绿茶样本分为两部分,与地理位置吻合,表明产地对绿茶品质的影响高于品种。该研究为科学评估茶叶产地、茶树品种对绿茶抗氧化能力的影响提供理论依据。

Abstract

To investigate the effects of geographical origin and cultivar on green tea quality, this study analyzed the liquor color, physicochemical components, and in vitro antioxidant activities of eight green teas from Longnan, Gansu and Jinhua, Zhejiang. Correlation and cluster analyses were employed for a comprehensive evaluation. The results show that compared to Longnan green teas, Jinhua green teas exhibited brighter green liquor color and a fresher, sweeter aftertaste. In contrast, Longnan green teas contained higher levels of tea polyphenols, flavonoids, caffeine, vitamin C (VC), catechins, and mineral elements, as well as superior in vitro antioxidant activities, including DPPH radical scavenging ability, ABTS radical scavenging ability, hydroxyl radical (·OH) scavenging ability, and total antioxidant ability (T-AOC). Among the tested cultivars, Longnan Camellia sinensis cv. ‘Yunfeng 5' and Jinhua Camellia sinensis cv. ‘Jiaming 1' had the best overall quality and antioxidant performance. The correlation results show that the color, physical and chemical components and antioxidant capacity of tea decoction were closely correlated. Among them, tea polyphenols, VC and epigallocatechin gallate (EGCG) were positively correlated with the antioxidant ability of the four kinds of tea decoction (P<0.01). Cluster analysis divided the samples into two distinct groups corresponding to their geographical origins, indicating that origin had a greater influence on tea quality than cultivar. This study provided a theoretical foundation for evaluating the effects of geographical origin and cultivar on the antioxidant properties of green tea.

导出引用

王永慧, 王多锋, 李学敏, 史田斌, 武立栋, 刘在国, 张广忠, 赵风云. 甘肃陇南和浙江金华绿茶的理化成分及体外抗氧化差异性研究[J]. 茶叶科学. 2025, 45(5): 852-864 https://doi.org/10.13305/j.cnki.jts.2025.05.009

WANG Yonghui, WANG Duofeng, LI Xuemin, SHI Tianbin, WU Lidong, LIU Zaiguo, ZHANG Guangzhong, ZHAO Fengyun. Study on the Physicochemical Components and in Vitro Antioxidant Differences of Green Tea from Longnan, Gansu and Jinhua, Zhejiang[J]. Journal of Tea Science. 2025, 45(5): 852-864 https://doi.org/10.13305/j.cnki.jts.2025.05.009

中图分类号： S571.1 TS272

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