摘要
以种植于海拔900、1200、1500、1800、2300 m的紫娟成龄茶园为研究对象,分析茶树品种紫娟主要生化成分随海拔高度的变化规律。结果表明,在海拔900~2300 m种植区域,水浸出物含量、茶多酚含量均随海拔升高而降低,在海拔900 m种植区域最高,分别为51.5%、30.3%。随着海拔的升高,氨基酸含量连续升高2次,在海拔2300 m种植区域,氨基酸含量呈明显升高,为3.8%。咖啡碱含量随着种植海拔的升高呈先降低后升高的趋势,在海拔900 m种植区域最高,为4.3%。儿茶素总含量随着海拔的升高呈先降低后升高的趋势,在海拔900 m种植区域最高,达15.88%。在海拔900~1800 m种植区域,花青素含量随着海拔的升高而逐渐升高,在海拔1800 m种植区域,花青素含量达最大值,为18.5 mg/g,在海拔2300 m种植区域,花青素含量降至最低,为14.3 mg/g。
Taking adult tea plantations of Zijuan planted at 900,1200,1500,1800 and 2300 m as the research object,the change law of main biochemical components of tea variety Zijuan with altitude were analyzed.The results showed that the contents of water ex⁃tract and tea polyphenols decreased with the increase of altitude in the planting area of altitude of 900~2300 m,and the highest values were 51.5%and 30.3%in the planting area of altitude of 900 m,respectively.With the increase of altitude,the content of the amino acid increased twice.In the planting area of altitude of 2300 m,the amino acid content significantly increased to 3.8%.With the in⁃crease of planting altitude,caffeine content firstly decreased and then increased,and the highest content was 4.3%in the planting ar⁃ea at 900 m altitude.The total content of catechins firstly decreased and then increased with the increase of altitude,and reached the highest content of 15.88%at 900 m altitude.The anthocyanin content increased gradually with the altitude from 900 m to 1800 m,the maximum anthocyanin content was 18.5 mg/g at 1800 m altitude,and the minimum anthocyanin content was 14.3 mg/g at 2300 m alti⁃tude.
作者
杨盛美
包云秀
李金龙
段志芬
刘本英
唐一春
YANG Sheng-mei;BAO Yun-xiu;LI Jin-long;DUAN Zhi-fen;LIU Ben-ying;TANG Yi-chun(Tea Research Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Laboratory for Tea Science,Kunming 650205,China)
出处
《湖北农业科学》
2023年第6期110-113,128,共5页
Hubei Agricultural Sciences
基金
云南省重大科技专项(202002AA100007,2018ZG009)
云南省绿色食品牌打造科技支撑行动(茶叶)专项。
关键词
海拔
茶树品种紫娟
生化成分
变化规律
altitude
tea tree variety Zijuan
biochemical components
change law
