Angel Yeast Co., Ltd

Yan Zhang

Xuefeng Yu

Juan Yao

Zhihong Li

Minghua Yu

Yamin Zhu

Haibo Zhang

A nutritional composition comprising by weight: between 0.05 and 30% selenium-enriched yeast; between 1 and 90% yeast beta-glucan; between 0.5 and 60% Vitamin C; and between 0.5 and 40% Vitamin E. The composition features anti-oxidative, anti-aging, cancer-preventing, and immune-stimulating properties.

Compositions comprising selenium-rich yeast and yeast beta-glucan

The present invention provides a method for extracting glucan and mannan from the cell wall of a microorganism. Specifically, the method of the present invention in one embodiment comprises the steps of: a) treating the cells of the microorganism with an alkaline protease and an mannanase; b) separating the mixture from step a) into a heavy phase and a light phase; c) drying the heavy phase obtained from step b), obtaining the glucan preparation; and d) drying the light phase obtained from step b), obtaining the mannan preparation. Optionally, in the step c), the heavy phase obtained from step b) may be treated sequentially with an alkali and an acid, and separated again into a heavy phase and a light phase. The heavy phase is dried, obtaining the glucan preparation. The present invention further relates to the glucan preparation and mannan preparation produced thereby, and the uses thereof.

Method for preparing glucan and mannan, glucan preparation and mannan preparation produced thereby and use thereof

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Yichang, China

Yan Zhang