Green tea extracts from China

A green tea extract is a herbal derivative from green tea leaves. Green tea extract is 20 times more antioxidant-active than Vitamin C. The main attribution is supposed to be EGCG. The biochemical properties of green tea extracts can be generally divided into four aspects. In vitro assays, Catechin and caffeine, which are main components in green tea extracts, block the cell cycle of cancer cells. Green tea extract supplements are accessible over the counter in various forms.
Excessive intake of green tea extracts containing caffeine has side effects, an excessive concentration may act as a pro-oxidant to damage DNA. This alternative antioxidant is suggested to be a healthier choice; a fairly successful instance may well be the application in Moon cake – the extracts both increase the shelf life and improve the flavor. Flavonoids are a group of phytochemicals in most plant products that are responsible for such health effects as anti-oxidative and anticarcinogenic functions.
Green tea has been used as both a beverage and a method of traditional medicine in most of Asia, including China, Japan, Taiwan, Vietnam, Korea and Thailand, to help everything from controlling bleeding and helping heal wounds to regulating body temperature, blood sugar and promoting digestion. Green tea as a food additives is processed and grown in a variety of ways, depending on the type of green tea desired. The green tea plants are grown in rows that are pruned to produce shoots in a regular manner, and are generally harvested three times per year. The first flush tea of May will readily store in this fashion until the next year's harvest.
Green tea steeping time and temperature varies with different tea. Steeping green tea too hot or too long will result in a bitter, astringent brew, regardless of the initial quality. It is thought that excessively hot water results in tannin chemical release, which is especially problematic in green teas, as they have higher contents of these.

Other food additives: Sodium Ascorbate                 Pectin