Lactic Acid Fermentation from Rice by Adopting Food Wastes as Nutrients

Abstract

In the lactic acid fermentation, the lactic acid bacterium does not grow in a culture containing only sugar. In order for the normal growth of lactic acid bacteria, nutrients such as nitrogen source and vitamin are usually required. In general, both yeast extract and peptone are used as nutrients for lactic acid fermentation, but they are not economical. In this work, we adopted typical food wastes as the nutrients instead of yeast extract and peptone, and the lactic acid fermentation was performed. As a result, it was found that the lactic acid production on the sakekasu (sake filter cake) addition was more than that on the addition of the yeast extract and peptone.