Debittering of spent brewer's yeast for food purposes
β Scribed by Nand, K.
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 285 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0027-769X
No coin nor oath required. For personal study only.
β¦ Synopsis
The analysis of spent brewer's yeast slurry exhibited a five-day biochemical oxygen demand (B.O.D.) of 158400 mg/l at 20% yeast concentration. A treatment process for debittering was tried. The steps include removal of extraneous materials, reduction of the viscosity of slurry, debittering the yeast cells and centrifuging, washing and drying the debittered yeast-cell biomass in a drum dryer. Debittering was carried out successfully by adjusting the pH and temperature of the slurry. pH 10 at 50 "C of the slurry resulted in the complete debittering of the yeast cells in a single treatment without affecting the chemical and essential amino acid compositions.
π SIMILAR VOLUMES
A rapid and selective assay was developed to measure cell surface hydrophobicity of brewer's yeast cells. During this so-called magnobead assay, bottom-fermenting yeast cells adhere to paramagnetic, polystyrene-coated latex beads which can easily be removed from the cell suspension by using a (samar