Utilization of by-products of the tea plant: a review
1986
Seshadri, R. | Nagalakshmi, S. | Madhusudhana Rao, J. | Natarajan, C.P. (Central Food Technological Research Institute, Mysore (India))
Tea factories and tea plantations produce a number of by-products such as microfined tea dust, winnowings, floor sweepings, tea seeds and other waste materials. Approximately 2 % of the total black tea production goes to waste, amounting to 10 000 t/yr under Indian conditions. The research and development efforts to utilize these by-products are outlined, which include extraction of caffeine, extraction of pigments and polyphenols, use as extenders in plastic resins, source of organic fertilizer, use for animal feeding, use as tobacco substitute and isolation of a plant growth regulator, triacontanol. The important uses of saponins and edible oil derived from tea seeds are also described
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