Use of Charge-transfer Complexation for Spectrophotometric Determination of Theanine Contents in Tea and Tea Beverage

荷移光度法测定茶及茶饮料 中茶 氨 酸含量

We have had a deep study on the theanine in tea and developed a direct analysis method of theanine with high performance liquid chromatography .

3对茶叶中的 茶 氨 酸进行了深入研究，建立了茶氨酸的高效液相色谱直接分析方法。

Theanine is a peculiar amino acid in green tea .

茶 氨 酸是绿茶中特有的一种氨基酸。

A crystallization method had been examined to obtain theanine with high purity .

乙醇重结晶法可得到较高纯度的 茶 氨 酸。

Absorption and metabolism biochemical modulation antineoplastic effects and corresponding mechanism of theanine were reviewed in this paper .

文中综述了 茶 氨 酸的吸收与代谢、生物调节作用、抗肿瘤作用及其机制。

Content Variation of Theanine and Gallic Acid in Pu-Er Tea

茶 氨 酸和没食子酸在普洱茶中的含量变化

Tea also contains a calming amino acid called theanine which helps reduce the jitters and keeps the mind relaxed and focused .

茶还含有一种镇定情绪的氨基酸叫 茶 氨 酸，可以帮助降低神经过敏，让大脑保持放松和注意力集中的状态。

The development of theanine biosynthesis by microorganism fermentation and culturing cells of Camellia sinensis was summarized in this paper and the possibility of theanine biosynthesis from the gene engineering strain was also discussed .

摘要综述了近年来应用微生物发酵法、茶树细胞培养法生物合成 茶 氨 酸的研究进展，讨论了 构建基因工程菌生物合成茶氨酸的可行性。

Water-maze and step-down method were used to test whether theanine would affect Mice 's learning and memorialcapabilities .

采用跳台法及复杂水迷宫法，观察 茶 氨 酸对小鼠学习记忆能力的影响。

The tablet contains 5.1 % theanine and 5.0 % crude polysaccharide .

该 茶 氨 酸 复合片剂的主要 功效 成分 茶 氨 酸含量为5.1%，粗多糖的含量为5.0%。

The Development of Health Food Based on Health Function Research of Theanine

茶 氨 酸保健功效研究及其保健食品开发

Theanine is a new kind of natural food additives and a peculiar amino acid in tea .

茶 氨 酸是一种新型天然的食品添加剂，是茶叶中的特有氨基酸。

Theanine Effects on Sedative and Hypnosis Induced by Pentobarbital Sodium In ICR Mice

茶 氨 酸对小鼠戊巴比妥钠镇静催眠的双向作用

Theanine affects sedative effect of pentobarbital sodium in ICR mice

茶 氨 酸对戊巴比妥钠镇静作用的影响

The yield of theanine by tissue culture is low .

组织培养 合成 茶 氨 酸产量低。

Extraction yield and purity of theanine were 0.94 % and 85.43 % respectively .

研究结果表明：该工艺能很好地脱除咖啡因，提取的 茶 氨 酸纯度达 85.43%，提取率为0.94%；

Therefore it is necessary to study the changes of theanine in different types of tea .

因此，有必要对 茶 氨 酸在不同茶类中的变化进行研究。

Theanine is found in green black and oolong teas .

绿茶、红茶和乌龙 茶都含茶 氨 酸。

Study of Method on Extracting Theanine

茶 氨 酸提取方法的研究

The standard about the edible theanine quality ( to try out ) is more comprehensive and clear .

本研究中制定的《食用 茶 氨 酸质量标准（试行）》较全面、明确。

In this paper the growth of tea seeds under different culture carriers cultivating temperatures and time were studied and the effects of reaction temperature reaction time and pH value on theanine synthetase activity were also discussed .

研究了茶籽在不同培育载体、培育温度和培育时间条件下的生长状况，以及不同的酶反应温度、反应时间和反应pH对 茶 氨 酸合成酶活力检测的影响。

Technique of isolation and purification of theanine from tea polyphenol industrial waste liquid was studied .

系统研究了从茶多酚工业废液中提取纯化 茶 氨 酸的工艺。

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

茶 氨 酸是茶叶的特征氨基酸。

Recent studies suggested that theanine could not only be used as a biological modulator enhancing the effectiveness of antineoplastic agents but also had antineoplastic effects .

近年来的研究发现 茶 氨 酸不仅可以作为生物调节剂提高抗肿瘤药物疗效，其自己也具有抗肿瘤浸染。

The mechanism of content variation of theanine and gallic acid was discussed primarily .

对二者 含量变化的机制进行了初步的讨论。

Conclusion Theanine could have the action of anti fatigue .

结论 L 茶 氨 酸具有抗疲劳作用。

Objective : To study the effect of theanine on delaying exercise-induced fatigue and reveal its possible mechanism .

目的：研究 茶 氨 酸延缓运动性疲劳的作用，并探讨相关的机制。

Theanine is a kind of special AA which is vital to teas quality .

茶 氨 酸 是 茶叶中的一种特殊的氨基酸，对于茶叶品质的形成有重要的意义。

Study on method to pick-up the theanine in tea

茶叶 中茶 氨 酸 超声波提取方法的研究