响应面法优化蒸青饼茶煎茶方式  

Response Surface Optimization of Steamed Green Cake Tea Decocting Method

作　　者：邓杰 何欣 王丹 任燕[1] 袁进红 叶玉龙 陆安霞 DENG Jie;HE Xin;WANG Dan;REN Yan;YUAN Jinghong;YE Yulong;LU Anxia(Department of Agriculture,Forestry and Food Engineering,Yibin University,Yibin 644000,China;Agriculture and Rural Bureau of Mabian Yi Nation County,Leshan,614600,China;Tea Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China)

机构地区：[1]宜宾学院农林与食品工程学部,四川宜宾644000 [2]马边彝族自治县农业农村局,四川乐山614600 [3]四川省农业科学院茶叶研究所,四川成都610066

出　　处：《中国茶叶加工》2024年第4期45-54,共10页China Tea Processing

基　　金：2021年大学生创新创业训练计划(166-202110641017)。

摘　　要：以四川中小叶群体种的一芽二叶鲜叶为原料,按陆羽《茶经》记载工艺制作蒸青饼茶,采用煎茶法制备茶汤,分析投茶量、投盐量和煎茶用水矿化度对茶汤主要滋味物质的影响。结果表明,投茶量对茶汤中游离氨基酸、茶多酚、咖啡碱和水浸出物具有显著性影响,煎茶用水矿化度、投盐量与煎茶用水矿化度交互作用对游离氨基酸含量有显著影响。文章建立了以茶汤感官评分为响应值的多元回归方程模型,得到蒸青饼茶煎茶方式的最优条件为:茶叶∶水∶盐=3 g∶600 mL∶0.7 g(茶水比1∶200)、煎茶用水矿化度(TDS)0 mg/L,该条件下茶汤滋味醇爽回甘且协调度高、香气清鲜愉悦、汤色杏黄明亮。Fresh one-bud,two-leaf tea from the local small-leaf population in Sichuan Province was used to make steamed green cake tea according to the traditional process recorded in Lu Yu's The Classic of Tea,and the decoction method was employed to prepare the tea soup.The effects of tea dosage,salt injection and salinity of water on the main taste components of the tea soup were analyzed.The results showed that the tea dosage had significant influenced the extraction of free amino acids,tea polyphenols,caffeine and water-soluble compounds.The salinity of water and the interaction between the salinity of water and salt injection had a significant effect on free amino acids.A multiple regression equation model with sensory scores of tea soup as response value was developed.The optimal brewing conditions for steamed green cake tea decocting were:tea dosage 3 g(tea-water ratio 1:200),salt dosage 0.7 g and water salinity(TDS)O mg/L.Under these conditions,the tea liquor had a mellow,sweet taste with high balance,a fresh,pleasant aroma,and a bright apricot-colored appearance.

关 键 词：蒸青饼茶 煎茶 滋味物质 感官评价 响应面 

分 类 号：TS272.5[农业科学—茶叶生产加工]