Study on Extraction of Trehalose from Baker's Yeast with Pure Water

摘要

The extraction of trehalose from baker's yeast with pure water was investigated. The extraction yield of the trehalose in yeast and the content of protein in the trehalose were affected by pretreatment conditions of yeast, extraction time and temperature, the ratio of yeast to water, and extraction stages. The resutls of preparation of yeast extract with alcohol-water and pure water were compared. It was shown that the pure water for the extraction of trehalose from baker's yeast is an alternative method, which is better than the method with alcohol-water solution based on the extraction yield of trehalose, theremove of protein and the consumption of alcohol.