Extraction of sweet compounds from Stevia rebaudiana Bertoni

Details Extraction of sweet compounds from Stevia rebaudiana Bertoni Extraction of sweet compounds from Stevia rebaudiana Bertoni

1998-07-17

1999-10-26

Brunsman, David

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 34, 4241951, 536 181, C07G 300, A23C 122

Patent

active

059721200

ABSTRACT:
The invention disclosed relates to a process for the extraction of sweet compounds from Stevia rebaudiana Bertoni, by column extraction, followed by purification by filtration. The extraction is at temperatures in the range of 0 to 25.degree. C. Preferably, a pre-treatment step of microfiltration is used to clarify the extract. Purification is by ultrafiltration followed by nanofiltration. The filtration conditions are controlled to optimize the recovery of the sweet compounds.

REFERENCES:
Derwent Acc No. 1976-47060X Stevioside purifcn . . . , May 8, 1976.
Derwent Acc No. 1997-403250 Extracting stevioside . . . , Nov. 19, 1997.
Derwent Acc No. 1993-194885 Natural sugar substitute . . . , Jun. 23, 1993.

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