Method for the recovery of steviosides from plant raw material

Details Method for the recovery of steviosides from plant raw material Method for the recovery of steviosides from plant raw material

1988-07-20

1990-01-09

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536128, 536127, C07G 300, C07H 106

Patent

active

048929387

ABSTRACT:
The invention relates to a method for recovering steviosides from dried plant material of Stevia rebaudiana Bertoni by extraction and purification. An extract is obtained through treatment in water at a temperature from room temperature to about 65.degree. C. with stirring and subsequent filtration and centrifugation. This extract is treated with calcium hydroxide, whereupon a precipitate is obtained by means of filtration or centrifugation. This precipitate is treated with a strongly acidic ion exchange resin and subsequently with a weakly basic ion exchange resin, filtered and dried.

REFERENCES:
patent: 4361697 (1982-11-01), Dobberstein et al.
patent: 4599403 (1986-07-01), Kumar

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