Pineapple Waste Cell Wall Sugar Fermentation by Saccharomyces cerevisiae for Second Generation Bioethanol Production

Agricultural food waste is rich in cellulosic and non-cellulosic fermentable substance. In this study, we investigated the bioconversion of pineapple cell wall sugars into bioethanol by simultaneous saccharification fermentation using Saccharomyces cerevisiae ATCC 4126. Soluble insoluble were during process. Moreover, medium was for protein, moisture, ash, lignin glycerol determinations with a particular focus on increase single protein due to yeast growth, allowing total valorization resulting medium, no further production, respect environmental sustainability. starting material 32.12% 26.33% respectively. The main from hydrolysis detected at beginning fermentation, glucose, xylose uronic acid. Glucose mannose most prevalent soluble fraction. ethanol theoretical yield, calculated according dry matter lost, reached up 85% (3.9% EtOH). final substrate mainly represented pentose sugars. content increased 4.45% 20.1%