Ja-Ryong Koo1, Hye Min Park1, Se Kyung Kim2, Hyun Shik Yun1,*
Journal of Renewable Materials, Vol.7, No.4, pp. 365-372, 2019, DOI:10.32604/jrm.2019.04170
Abstract
Lactic acid is an important organic acid that is widely used in the food, pharmaceutical, and cosmetic industries. Lactic acid was produced from coffee ground waste which contains fermentable sugars and is increasingly generated from our daily dietary life. Among 114 strains of Lactobacillus species, Lactobacillus rhamnosus ATCC 10863 was selected for the production of lactic acid from coffee ground waste. Through alkali pretreatment and saccharification, cellulose and hemicellulose in coffee ground waste were converted into fermentable sugars. Pretreatment experiments were conducted at various alkali solution, concentrations, and times. Alkali pretreatment with 35 g/L of KOH at 121oC for 60… More >
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