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首页> 外文期刊>Industrial Crops and Products >Identification of triterpenoid saponins in flowers of four Camellia Sinensis cultivars from Zhejiang province: Differences between cultivars, developmental stages, and tissues
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Identification of triterpenoid saponins in flowers of four Camellia Sinensis cultivars from Zhejiang province: Differences between cultivars, developmental stages, and tissues

机译：浙江省四个山茶花中豆瓣皂苷的鉴定：品种，发育阶段和组织之间的差异

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摘要

Triterpenoid saponins are important bioactive compounds in tea flowers. Using ultra-high performance chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry, a total of 21 triterpenoid saponins were identified and characterized from tea flower extracts of selected cultivars from Zhejiang province. A comparison of the seven main saponins was performed in the four main Zhejiang tea flower samples at different developmental stages. High accumulation of saponins at the early stages was observed in all tea flower cultivars. This may be explained, at least partly, by the high levels of saponins in petals at the green bud stage, when petals constitute over 50% of the whole flower weight. Floratheasaponin A and floratheasaponin D were the most abundant saponins in the flowers of Longjing NO.43, Baiye NO.1, and Jiaming NO.1, which is similar to results with tea flowers from Anhui province. Considerable amounts of chakasaponins I and II were found in Yingshuang flowers, as in the parent cultivar, Fudingdabai, and tea flowers from Fujian province. The quantified saponins profiles were analyzed by principal component analysis (PCA) and hierarchical clustering analysis (HCA) and successfullydiscriminated between all tea flower samples. (C) 2016 Elsevier B.V. All rights reserved.
机译：三萜皂苷是茶花中的重要生物活性化合物。使用超高性能色谱与电喷雾电离四极杆飞行时间质谱法相结合，共鉴定了总共21种三萜皂苷，并用浙江省选定品种的茶叶提取物为特征。在不同发育阶段的四个主要浙江茶叶样品中进行了七个主要皂苷的比较。在所有茶花品种中观察到早期阶段的高积累皂苷。这可以至少部分地通过绿芽阶段的花瓣中的高水平皂苷，当花瓣构成全部花重量的50％以上。 Floratheasaponina和Floratheasaponin d是龙泾43号，Baiye No.1和jiaming no.1的花朵中最丰富的皂苷，这与茶花从安徽省茶花相似。在Yingshuang Flowers中发现了大量的Chakasaponins I和II，如福建省的父母品种，福明达岛和茶花。通过主成分分析（PCA）和分层聚类分析（HCA）分析量化的皂苷型材并在所有茶叶样品之间成功筛选。 （c）2016年Elsevier B.v.保留所有权利。

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