Bioethanol Production from Different Varieties of Over-ripen Mango (Mangifera indica L.) of Bangladesh

Abstract

Rapid population growth of Bangladesh, exponential growth on industrialization load on fossil fuel resources and this large economic growth has created an increased demand for energy than the current output. Bioethanol is an attractive, renewable, environment friendly fuel which is considered one of the most promising substitute for fossil fuels. As an agricultural country it produces a large amount of mangoes (Mangifera indica L.) every year. However, Bangladesh is the 8th largest mango producing country in the world. The aim of this research was to find out the potentiality of bioethanol production from different over-ripen mango varieties of Bangladesh. About 100 g of sample mango pulp was blended with 300 ml of distilled water and then sterilized. For fermentation, 200 ml (1x105 cell/mL) 24-hours old yeast culture (Saccharomyces cerevisiae) was added to make the total volume 500 ml and incubated at 35°C for 6-days. Five different local mango varieties (Lengra, Khershapat, Amropali, Fazli and Lakhna) were assessed for bioethanol production. Out of these mango varieties a highest yield and purity of bioethanol was found in Khershapat (Mangifera indica L.) 77.67 g/L with 32% (v/v) purity. This research proved that Bangladesh has a good opportunity of bioethanol production from over-ripen mangoes.