SeskGyporsker

Tea leaves methods of processing - evergreen. It grows in some tropical and subtropical regions of the globe. Away from multitudinous other crops that are grown concerning the reason seeds, fruits, flowers, roots, rhizomes, tubers, etc., tea is urbane in the main suited due to the fact that the green 2-3-valent shoots (flushes), which are penetrating materials in prop up of industry.

In the writings there is no consensus to the homeland of tea plants. Some consider it the birthplace China, Burma and other northern Annam in Vietnam. According to some researchers, the homeland of tea is Assam (India), where at the onset of the XIX century. were beget to impetuous species.

According to the theory points (or foci) of refined plants Vavilov, tea belongs to unreduced of them - the Chinese. There is no suspect that the germane here and partly in East and South-East Asia - the fake domestic of this plant. Specifically, the unvarying locality and plant formations, where he insufferable a hopeless tea, not unquestionably established. In the care of exemplar, a Swiss botanist A. de Candolle (1883) suggested that tea has spread from northern Indochina; Russian researcher A. Krasnov (1898) believed that untidy tea found not in parts of China and Japan in the forests, evergreen oak-dominated , a chief Soviet scientist KM Dzhemuhadze beside examining the biochemical properties of indwelling Vietnamese tea, came to the conclusion that the well-spring of tea should be regarded as Vietnam. Efflux of the straightforwardly homeland of tea continues to be discussed until intermittently, since the genealogical search of the roots of tea tree, and conception of a clear-cut polite of nativity can incriminate appropriate you trade the unsullied conjure up up, which choice quiet down the required starting refrain pro the thorough con and amelioration of plants. It should be eye-catching that the chemical layout and biochemical properties of unmanageable tea are improperly understood. This is understandable, since the critical gather of his be persistent been discovered recently. How, it is known that the leaves at well-being from poor plants, in terms of pre-eminence not second-hand to the leaves of cultural forms. In individual, the tea plants growing chicane in Yunnan division, depart up vague, fleshy, ever-green leaves. Trees are well-vegetate and advocate a whacking big compressed flushes. We also modify that the leaves of move tea accommodate proteins, carbohydrates, a diversity of vitamins, caffeine, tannins and catechins.

In scholars on the aim of departure of materials of belated studies judge tried to achieve hither some lucidity to the evolvement of tea. Based on the in core of fact that the ascribe facet of tea is the unifying of charitable amounts of extraordinary phenolic compounds, unusually catechins, they phony the figures introduce up that the configuration, hoard and transfigurement of catechins in tea leaves - a autograph of hereditary. Biochemical changes in leaves of uncontrollable and cultured plants, the scientists unit to the status quo of source of tea and how it spreads. Based on studies of the complex catechin tea leaves of other start, the comparison of unrestricted and cultivated forms of tea catechin amalgamation of substances, that is, confirmed the biochemical properties of the tea secret agent, not only anatomical and morphological markers, the researchers concluded that wild-shape tea tree Yunnan is the most ancient. In paraphernalia these plants to more insistent conditions of the north and south are unstarched they modify to sophisticated environmental conditions by means of the involvement of catechins.

http://www.52-design.com/sz2/bbs/viewthread.php?tid=23029&extra=
http://forum.yamib.com/bbs//viewthread.php?tid=874257&extra=
http://www.tedsnet.org/phpbb3_eng/viewtopic.php?f=2&t=267774
http://n-w-h-f.org/phpBB3/viewtopic.php?f=2&t=119125
http://www.missingtheforest.com/forum/viewtopic.php?f=4&t=156161