Transcription of ALOE VERA - World Health Organization
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ALOE VERA - World Health Organization
371. Exposure DataThe first record of human use of aloe vera is in Sumerian hieroglyphics engraved on clay tablets during the Mesopotamia civilization circa 2200 BC, in which it is described as a laxative. Use of aloe in ancient times is also documented in Egypt, Greece, and China. aloe vera was culti-vated on the islands of Barbados and Curacao in the Caribbean by Spain and the Netherlands, and was sold in various parts of Europe during the 17th century (Park & Jo, 2006). Commercial cultivation of aloe vera in the USA began in the 1920s in Florida (Grindlay & Reynolds, 1986). Although aloe vera originated in the warm, dry climates of Africa, the plant is readily adaptable and grows worldwide (Steenkamp & Stewart, 2007).Use of aloe vera gel extracts in Health foods and beverages, and moisturizing cosmetics, began during the 1970s, starting in the USA and parts of Europe (Park & Jo, 2006).
contains large, thin-walled cells that produce gel, the clear, mucilaginous, and aqueous extract of the inner central area of the leaf pulp (Fig. 1.2). Aloe vera gel serves as the water and energy storage component of the plant. The mechanical extrusion of the mucilaginous gel from the inner leaf pulp gives a 70% yield with a water content
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