The yield of theanine by tissue culture is low.

组织培养合成茶氨酸产量低。

Theanine is a peculiar amino acid in green tea.

茶氨酸是绿茶中特有的一种氨基酸。

This chemical is an amino acid called L-theanine.

这种化学物质是一种叫做L -茶氨酸的氨基酸。

Theanine is found in green, black and oolong teas.

绿茶、红茶和乌龙茶都含茶氨酸。

Theanine is one of the main amino acid components in tea.

茶氨酸是茶叶的特征氨基酸。