We investigated the phylogenetic diversity of 144 Colletotrichum isolates associated with symptomatic and asymptomatic tissues of Camellia sinensis and other Camellia spp. from seven provinces in China (Fujian, Guizhou, Henan, Jiangxi, Sichuan, Yunnan, Zhejiang), and seven isolates obtained from other countries, including Indonesia, UK, and the USA. Based on multi-locus (ACT, ApMat, CAL, GAPDH,...

We have shown in molecular basis that alcoholic tea aroma is mainly formed by endogenous enzymatic hydrolysis of glycosidic aroma precursors during manufacturing. Amounts of alcoholic aroma precursor and glycosidase activity in each part of the tea shoot (Camellia sinensis var. sinensis cv Yabukita and a hybrid of var. assamica & var. sinensis cv Izumi) were indirectly measured by means of a cr...

OBJECTIVE The aim of this study was to analyze the impact of green tea on dentin erosion. MATERIALS AND METHODS Twelve extracted sound human premolars were immersed in Coca Cola with a pH of 2.8 for 5 minutes. The surface microhardness was measured with a Knoop diamond under a load of 50gr/10s. The teeth were immersed in green tea (Camellia sinensis) solution for one minute. The microhardness...

The tea plant [Camellia sinensis (L.) O. Kuntze] is an important commercial crop rich in bioactive ingredients, especially catechins, caffeine, theanine and other free amino acids, which the quality of tea leaves depends on. Drought is the most important environmental stress affecting the yield and quality of this plant. In this study, the effects of drought stress on the phenotype, physiologic...

active saponin constituents from Camellia (C.) sinensis (Theaceae), we have reported the isolation and structure elucidation of theasaponins A1—A5, C1, E1—E13, F1—F3, G1, G2, and H1, 2—6) assamsaponins A—I, and camelliasaponins B1 and C1 9) from the seeds of Japanese C. sinensis (L.) O. KUNTZE and Sri Lankan C. sinensis L. var. assamica PERRE, and foliatheasaponins I—V from the leaves of Japane...

The exposure to ultraviolet radiations (UVR) is the key source of skin sunburn; it may produce harmful entities, reactive oxygen species (ROS), leading to aging. The skin can be treated and protected from the injurious effects of ROS by using various pharmaceutical formulations, such as cream. Cream can be loaded with antioxidants to quench ROS leading to photo-protective effects. Moreover, mod...

This PDF was generated from an article on http://drhoffman.com/ © 2017 Ronald L. Hoffman MD, PC. All Rights Reserved | 1 Archeological evidence suggests that tea leaves steeped in boiling water were consumed as many as 5,000 years ago. Botanical evidence indicates that India and China were among the first countries to cultivate tea. Although the English are known for their love of tea, American...

Antimicrobial and antitumor activities of Camellia sinensis L seed extracts were investigated. Seed extracts showed antifungal activities against Candida albicans IFO 1594 and Cryptococcus neoformans. Inhibition zone of 20 mm was shown by 70% ethanol extract against C. albicans IFO 1594 at 100 mg/mL. Antifungal activity of seed extract was not decreased by heating at 80 and 100C for 30 min or a...

The aqueous extracts of sweet basil (Ocimum basilicum L.), tarragon (Artemisia dracunculus L.), fennel (Foeniculum vulgare Miller), olive (Olea europaea L.), sage (Salvia officinalis L.), thyme (Thymus vulgaris L.), wild thyme (T. serpyllum L.), tea (Camellia sinensis (L.) Kuntze), and verbena (Verbena officinalis L.) were investigated for polyphenol, tannins, antocyanins and flavonoids. Among ...