6个云南大叶种茶树新材料制作绿茶的适制性

为筛选出适制绿茶的云南大叶种茶树,丰富优质绿茶品种种质资源,以云南大叶种茶树新材料8号、14号、15号、17号、18号和20号为参试对象,对其所制绿茶进行品质成分分析和感官评审。结果表明:8号的品质表现最好,水浸出物含量最高,达48.0%。15号的氨基酸含量最高,为7.2%;茶多酚含量最低,为22.4%;感官评审总分较低,为86.2分。17号的咖啡碱含量最高,为3.73%。感官评审总分为8号20号14号18号15号17号。6个材料都具备绿茶适制的明显特征,其中,新材料8号汤色最好,新材料18号香气最佳,新材料20号滋味最优,制成的绿茶品质较好,新材料15号和新材料18号品质尚可,而新材料17号制成的绿茶品质稍逊。

Processing Suitability of Green Tea Made of Six New Yunnan Tea Materials with Big Leaves

The quality components and sensory quality of green tea samples made of six new Yunnan tea materials with big leaves were analyzed and valuated to screen Yunnan tea species with big leaves for producing green tea suitably and enrich germplasm resources of quality green tea varieties.Results:The quality of No.8 is the best and its water extract content is up to 48.0％ (the highest).The amino acid and tea polyphenol content of No.15 is 7.2％ (the highest) and 22.4％ (the lowest) respectively but its total sensory score is lower (86.2).The caffeine content of No.17 is the highest (3.73％).Total sensory score of six green tea samples made of new Yunnan tea materials with big leaves is No.8 ＞No.20 ＞No.14 ＞No.18 ＞No.15 ＞No.17.Six materials all have the obvious characteristics to produce green tea suitably.The quality of green tea made of No.8 with best liquor color,No.18 with best aroma and No.20 with best taste is better.The quality green tea made of No.15 and No.18 is acceptable.