安化不同茶树品种化学成分含量的比较研究

通过对安化现有茶树晶种一芽三叶中的茶多酚、氨基酸、水浸出物、氟元素、咖啡碱、儿茶素等含量的测定,探讨不同茶树品种鲜叶化学成分含量的差异以及不同采收时期茶树鲜叶化学成分含量的变化.结果表明,4号、5号、6号、10号、12号、14号等茶树品种氟含量显著低于其他品种,4号、5号、6号、12号等茶树品种春茶鲜叶内质较为突出.不同采收时期的茶树鲜叶中的茶多酚、氟含量、咖啡碱和儿茶素总量差异均不显著.     

安化不同茶树品种化学成分含量的比较研究

通过对安化现有茶树品种一芽三叶中的茶多酚、氨基酸、水浸出物、氟元素、咖啡碱、儿茶素等含量的测定,探讨不同茶树品种鲜叶化学成分含量的差异以及不同采收时期茶树鲜叶化学成分含量的变化。结果表明,4号、5号、6号、10号、12号、14号等茶树品种氟含量显著低于其他品种,4号、5号、6号、12号等茶树品种春茶鲜叶内质较为突出。不同采收时期的茶树鲜叶中的茶多酚、氟含量、咖啡碱和儿茶素总量差异均不显著。     

茶树不同品种矿质元素含量研究

本文对云南大叶种、龙井43号、早白尖-6号等8个茶树品种的17种矿质元素进行了分析测定。结果表明,P、K、Ba、Mn、Cu等9种元素品种间差异显著,而其它元素差异不显著。红茶品种的Cu和K含量一般较高,因此,在选育茶树品种时,要注重矿质元素含量指标。     

茶树花的化学成分及开发利用研究进展

很多研究表明,茶树花含有和茶叶相似的丰富的内含物质,是一种附加价值很高的茶资源。现就近年来对茶树花在化学成分及开发利用等方面的研究进展进行了较为全面的综述,并对其研究和开发前景进行了展望,以期为今后茶树花资源的研究和开发提供理论参考。     

不同品种茶树适宜生长基质配方比较

随着茶树栽培技术的进步发展,无土栽培成为一种重要的种植方式.在无土栽培中,不同的基质特点与作用有所差别,基质配方对不同品种的茶树生长影响也有所不同,因此选择合适的基质配方极其重要.该文总结了栽培基质的特点与要求以及不同品种茶树的特点与类型,比较了4种基质配方的使用效果及不足之处,并对基质利用方向进行了展望.     

茶树催发素对茶树新梢化学成分和品质的影响

于春茶萌发前用茶树催发素喷施茶树树冠，分析喷施后茶树新梢化学成分含量和组成的变化。结果表明，供试的３个茶树品种喷施茶树催发素后，鲜叶化学成分向有利于绿茶品质的方向变化。氨基酸提高１６．８％，维生素Ｃ提高２０．４％，咖啡碱降低１７．４％，茶多酚降低９．４６％，酚氨比下降１９．６％，儿茶素品质指数提高１４．５％。差异均达到显著水平。鲜叶的内质评分提高５．８％     

茶树无性系品种比较试验

通过６年的茶树品种试验，对１０个参试品种的适应性，新梢物候期，鲜叶产量，制茶品质及抗逆性等经济性状分别进行了分析比较和评估，其中槠中齐９号，尖波黄１３号等品种的优良性状超过了福鼎大白茶种。     

不同茶树品种新化红茶品质比较分析

选用种植于雪峰山脉海拔1 000 m的槠叶齐、潇湘红21-3、碧香早、尖波黄13号、白毫早及保靖黄金茶1号这6个茶树品种的鲜叶为原料,采用同一红茶加工工艺,对样茶进行感官审评与理化成分分析.结果表明:潇湘红21-3和槠叶齐加工的新化红茶滋味浓强、收敛性强,汤色红浓亮,产品具有明显的品质优势,其中潇湘红21-3甜香带品种...     

不同茶树资源生化成分差异的初步研究

对12个茶树品种(品系)鲜叶的蒸青干样进行水浸出物、茶多酚和氨基酸含量的测定及分析。研究表明,3种测定结果在不同茶树材料中的含量存在明显差异,其中早生黑叶材料的水浸出物最多,并含有较多茶多酚和氨基酸,是极具开发前景的茶树品种。     

不同品种茶树矿质元素含量研究

1材料与方法 1．1材料供试材料（云南大叶种、蜀永1号、蜀永2号、四川种、福鼎大白茶、龙井43、早白尖石、58号）均采自四川省农业科学院茶叶研究所品种园。采摘标准为1芽3叶开展时采1芽2叶。全年春、夏、秋各采1次,共采样24只。采下的新梢,经自来水和去离子水冲洗去除表面尘埃,再蒸青固定。     

不同品种茶树矿质元素含量研究(英文)

To understand the mineral elements in different varieties of tea (Camellia sinensis), 17 mineral elements in eight tea varieties including Yunnan Dayezhong, No.43 Longjing and No.6 Zaobaijian, were measured. The results showed that nine elements, such as P, K, Ba, Mn, Cu, were significantly different among varieties, others did not. Black tea varieties usually contain high contents of Cu and K. As a conclusion, mineral elements should be extensively considered in breeding tea varieties.     

山东茶区无性系茶树品种主要生化成分分析研究

为筛选提升绿茶品质的优良无性系茶树品种,对山东茶区近几年引进的10个主要无性系茶树品种的生化成分茶多酚、氨基酸、咖啡碱进行化验分析,研究其主要生化成分的特点,分析其酚/氨比值。‘中茶108’游离氨基酸含量最高,全年平均为2.89%,春茶含量高达4.04%,茶多酚含量适中,咖啡碱含量较高,酚/氨比值最低,平均为5.85,‘中茶108’是适制绿茶最好的品种,山东茶区无性系茶树引种重点推荐‘中茶108’。     

我国苦茶资源主要生化成分的鉴定评价(英文)

Bitter tea is a special kind of tea germplasm in China.The major biochemical components of 24 bitter teas and other 8 Camellia sinensis var.sinensis and 8 C.sinensis var.assamica tea germplasms,which were stored in the China National Germplasm Hangzhou Tea Repository(CNGHTR),were analyzed and evaluated.The results showed that no significant differences of major biochemical components affecting the tea quality were found between bitter tea and common tea.According to the processing suitability index,bitter tea was suitable for the manufacturing of black tea;while according to evolutionary indices such as the composition and content of catechin,bitter tea was similar to C.sinensis var.assamica belonging to the relatively primitive type in evolution.The results of cluster analysis indicated that bitter tea was clustered with C.sinensis var.assamica,so it could be considered to belong to C.sinensis var.assamica.     

Analysis and Evaluation of Biochemical Components in Bitter Tea Plant Germplasms

Bitter tea is a special kind of tea germplasm in China.The major biochemical components of 24 bitter teas and other 8 Camellia sinensis var.sinensis and 8 C.sinensis var.assamica tea germplasms,which were stored in the China National Germplasm Hangzhou Tea Repository(CNGHTR),were analyzed and evaluated.The results showed that no significant differences of major biochemical components affecting the tea quality were found between bitter tea and common tea.According to the processing suitability index,bitter tea was suitable for the manufacturing of black tea;while according to evolutionary indices such as the composition and content of catechin,bitter tea was similar to C.sinensis var.assamica belonging to the relatively primitive type in evolution.The results of cluster analysis indicated that bitter tea was clustered with C.sinensis var.assamica,so it could be considered to belong to C.sinensis var.assamica.     

我国苦茶资源主要生化成分的鉴定评价(英文)

Bitter tea is a special kind of tea germplasm in China.The major biochemical components of 24 bitter teas and other 8 Camellia sinensis var.sinensis and 8 C.sinensis var.assamica tea germplasms,which were stored in the China National Germplasm Hangzhou Tea Repository(CNGHTR),were analyzed and evaluated.The results showed that no significant differences of major biochemical components affecting the tea quality were found between bitter tea and common tea.According to the processing suitability index,bitter tea was suitable for the manufacturing of black tea;while according to evolutionary indices such as the composition and content of catechin,bitter tea was similar to C.sinensis var.assamica belonging to the relatively primitive type in evolution.The results of cluster analysis indicated that bitter tea was clustered with C.sinensis var.assamica,so it could be considered to belong to C.sinensis var.assamica.     

蒸青固样方式对茶叶主要生化成分的影响

为探讨蒸青时间对茶叶生化成分的影响,筛选出能最大限度地保留茶叶本身的内合成分,客观、科学、充分地反映茶树品种固有的生化品质,采用福鼎大白茶、鄂荼5号、农抗早3个茶树品种的二芽2叶为原料,进行了不同蒸青时间处理鲜叶试验,并测定其常规生化成分.结果表明:不同蒸青时间对茶叶水浸出物的影响较大,对氨基酸、茶多酚、咖啡碱影响较小,最宜茶叶蒸青时间控制在4～5min,茶叶中内含成分尤其是水浸出物含量的保留量最大.