| 摘要 |
FIELD: food industry. ^ SUBSTANCE: leaves of common nettle are sequentially extracted with non-polar liquified gas and drinking water with subsequent obtaining corresponding extracts. Tea preparation waste is mixed with liquid carbon dioxide, extracted and minced along with periodic depressurisation of extraction mixture below carbon dioxide vapour pressure at extraction temperature. Miscella and extraction cake are separated and the latter is suspended in water solution of edible acid. Carbonic acid calcium and magnesium salt and water extract of common nettle leaves are entered into suspension, moulded, dried to residual humidity 13-15%, cut, impregnated with gas-liquid extract of common nettle leaves and preliminary separated miscella with simultaneous pressure boost. It is followed by depressurising to atmosphere pressure with simultaneous freezing of absorbed carbon dioxide and subliming it with obtaining end product. ^ EFFECT: obtaining a new product in form of flavoured reconstituted tea with the fullest usage of mentioned waste. |
