Tea extract preparation

Details Tea extract preparation Tea extract preparation

1996-12-04

1998-10-13

Wong, Leslie

Food or edible material: processes, compositions, and products

Fermentation processes

Of plant or plant derived material

426 52, 426597, A23F 300

Patent

active

058209018

ABSTRACT:
Tannase covalently immobilized by its glycoside part on an insoluble support. Process for the preparation of a tea extract, in which an aqueous extract of tea leaves is prepared, and the extract is treated at a temperature of 20-65.degree. C. with tannases whose glycoside part is covalently immobilized on an insoluble support, in particular in a tank which contains immobilized tannases in suspension, or in a reactor which includes a fixed bed or a fluidized bed of immobilized tannases.

REFERENCES:
patent: 3812266 (1974-05-01), Sanderson et al.
patent: 3959497 (1976-05-01), Takino
patent: 4051264 (1977-09-01), Sanderson et al.
patent: 4217338 (1980-08-01), Quash
patent: 5258188 (1993-11-01), Barmentlo et al.
patent: 5445836 (1995-08-01), Agbo et al.
Biotechnology and Bioengineering, vol. 16, No. 8, 1974, pp. 1095-1102, "Immobilized Tannase" by H. Weetall et al.
Biotechnology and Bioengineering, vol. 26, 1984, pp. 1223-1226, "Invertase Immobilisation" by M. Marek et al.

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