摘要
为了解乌龙茶品种的贵州珠形绿茶适制性,以贵州主栽品种福鼎大白茶为对照,对国家级茶树良种‘金牡丹’和‘铁观音’春、夏梢所制珠形绿茶进行主要生化成分测定及感官审评。结果表明:‘金牡丹’和‘铁观音’的春、夏茶(珠形绿茶)的水浸出物、茶多酚、氨基酸和咖啡碱含量为43.54%±0.78%~46.14%±0.42%、21.27%±0.60%~27.65%±0.11%、3.37%±0.18%~4.83%±0.09%和3.11%±0.07%~4.35%±0.06%,其中春茶的水浸出物、咖啡碱、茶多酚均显著高于对照,而氨基酸总量均显著低于对照(P<0.05)。其夏茶除茶多酚显著高于对照外,均与对照无显著差异(P>0.05)。感官审评发现,‘金牡丹’春茶品质优于对照,‘铁观音’低于对照。‘金牡丹’和‘铁观音’夏茶品质得分与对照相当。‘金牡丹’和‘铁观音’均为清香带花香,滋味则更浓醇。综合主要生化成分及感官审评,珠形绿茶‘金牡丹’和‘铁观音’香高馥郁带花果香,滋味浓醇。其鲜爽味物质不及‘福鼎大白茶’,但浓厚(强)度的物质含量高于对照。
In order to understand the suitability for Guizhou beaded green tea of oolong tea varieties,the quality of beaded green tea of the state-level excellent tea cultivars‘Jinmudan’and‘Tieguanyin’was investigated in comparison with‘Fudingdabaicha’as the main dominant cultivar in Guizhou province based on main chemical composition and sensory evaluation.The results showed that water extracts,tea polyphenols,amino acids and caffeine ranged from 43.54%±0.78%to 46.14%±0.42%,from 21.27%±0.60%to 27.65%±0.11%,from 3.37±0.18%to 4.83%±0.09%,and from 3.11%±0.07%to 4.35%±0.06%,respectively.The water extract,theine and tea polyphenols of spring tea were significantly higher than those of the control group,while the total amino acid content was significantly lower than that of the control group(P<0.05).Except for tea polyphenols,there was no significant difference between the two groups(P>0.05).Sensory evaluation found that the quality of‘Jinmudan’spring tea was better than the control variety,while‘Tieguanyin’was lower.The summer tea quality of‘Jinmudan’and‘Tieguanyin’was comparable to the control variety.‘Jinmudan’and‘Tieguanyin’were both fragrant with flowers,and their taste was more mellow.Based on the main biochemical components and sensory evaluation,the bead-shaped green tea‘Jinmudan’and‘Tieguanyin’had high fragrance with floral and fruity aroma and strong taste.The fresh-tasting substance was less than the control variety,but the content of the substance was stronger.
作者
谢文钢
陈智雄
刘阳
奉红琼
刘燕
XIE Wengang;CHEN Zhixiong;LIU Yang;FENG Hongqiong;LIU Yan(College of Biology and Engineering of Environment,Guiyang University,Guiyang 550005,China;College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China)
出处
《食品工业科技》
CAS
北大核心
2021年第9期245-250,共6页
Science and Technology of Food Industry
基金
贵州省教育厅项目(黔教合KY字[2016]244)、贵州省教育厅重点领域项目(黔教合KY字[2020]047)
2020年度贵阳市财政学科建设与研究生教育专项资金(SH-2020)
关键词
乌龙茶品种
生化成分
珠形绿茶
品质
oolong tea variety
biochemical composition
beaded green tea
quality
