Quercetin Glycosides-rich Tea Cultivars (Camellia sinensis L.) in Japan

Manami Monobe; Sachiko Nomura; Kaori Ema; Akiko Matsunaga; Atsushi Nesumi; Katsuyuki Yoshida; Mari Maeda-Yamamoto; Hideki Horie

doi:10.3136/fstr.21.333

Notes

Quercetin Glycosides-rich Tea Cultivars (Camellia sinensis L.) in Japan

Manami Monobe , Sachiko Nomura, Kaori Ema, Akiko Matsunaga, Atsushi Nesumi, Katsuyuki Yoshida, Mari Maeda-Yamamoto, Hideki Horie

Author information

Manami Monobe Corresponding author
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Sachiko Nomura
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Kaori Ema
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Akiko Matsunaga
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Atsushi Nesumi
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Katsuyuki Yoshida
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science
Mari Maeda-Yamamoto
Food Function Division, NARO National Food Research Institute
Hideki Horie
Tea Industry Research Division, NARO Institute of Vegetable and Tea Science

Keywords: tea cultivars (Camellia sinensis L.), water extract, quercetin glycosides

JOURNAL FREE ACCESS FULL-TEXT HTML

2015 Volume 21 Issue 3 Pages 333-340

DOI https://doi.org/10.3136/fstr.21.333

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Abstract

In an effort to identify tea cultivars with high flavonol content, we measured flavonol glycoside levels in the tea infusions of cultivars in the collection of the National Institute of Vegetable and Tea Science. The cultivars ‘Saemidori’, ‘Sofu’, ‘Surugawase’, ‘Fukumidori’, and ‘Asatsuyu’ among others could be effective sources of quercetin compared to other tea cultivars. Quercetin glycosides in “Saemidori” and “Sofu” remained at a relatively high level (110 – 170 µg/mL aglycone equivalent). These cultivars are indicated as effective sources of dietary quercetin, and are potential sources of quercetin-rich drinks.

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