The distribution of polyphenols in the tea plant (Camellia sinensis L.)
نویسندگان
چکیده
منابع مشابه
Effects of light and darkness on polyphenol distribution in the tea plant (Camellia sinensis L.).
1. Flavonoid synthesis was able to proceed in darkness in young shoots and seedlings of the tea plant, but was increased by light. 2. The initial effect of darkness was to inhibit synthesis of the A ring or its linkage to the phenylpropane moiety of the flavonoid, but later the hydroxylation state of the flavanols was affected, leading to smaller proportions of gallocatechins and of complex leu...
متن کامل5-Dehydroshikimate reductase in the tea plant (Camellia sinensis L.). Properties and distribution.
1. A method for the extraction of 5-dehydroshikimate reductase (EC 1.1.1.25) from tea plant tissues in an active soluble state has been developed. It is dependent on the use, in the extraction medium, of an insoluble polyphenol adsorbent (Polyclar AT), which prevents the polyphenols present from precipitating all the proteins. 2. The enzyme has the following properties: pH optima at pH10.1 in g...
متن کاملPolyphenols as potential indicators for drought tolerance in tea (Camellia sinensis L.).
Plant polyphenols have gained prominence in quality of plant products and in human health. An experiment was conducted to determine the association of tea polyphenols with water stress and their suitability as indicators for drought tolerance. The experiment was conducted in a 'rain-out' shelter, and consisted of six tea clones (BBK 35, TRFK 6/8, TRFK 76/1, TRFK 395/2, TRFK 31/30, and TRFK 311/...
متن کاملDifferential Proteomic Analysis of Chilling Stress Responses in Tea Plant [Camellia sinensis (L.) O. Kuntze]
Low temperature is one of the serious environmental stresses affecting plant growth and agricultural production. It not only inhibits metabolic reactions but also causes osmotic, oxidative, and other damages [1]. Chilling temperatures that range from 0 to 12°C are common during the growing season and can substantially decrease plant productivity [2]. Plants respond and acclimate to chilling str...
متن کاملA Comparative Proteomic Analysis of the Buds and the Young Expanding Leaves of the Tea Plant (Camellia sinensis L.)
Tea (Camellia sinensis L.) is a perennial woody plant that is widely cultivated to produce a popular non-alcoholic beverage; this beverage has received much attention due to its pleasant flavor and bioactive ingredients, particularly several important secondary metabolites. Due to the significant changes in the metabolite contents of the buds and the young expanding leaves of tea plants, high-p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1969
ISSN: 0306-3283
DOI: 10.1042/bj1130741