Abstract
Ethanol is commercially produced by fermenting agricultural products that contain high sugar or starch contents. In this study, the juices of Opilia amentacea and Curcubita pepo were used to produce bioethanol. A mixture of Urea (CON2H4), monosodium glutamate (C5H8NNaO4), potassium dihydrogen phosphate (KH2PO4), and magnesium sulfate heptahydrate (MgSO4.7H2O) is used to promote batch ethanol production with four strains of Saccharomyces cerevisiae as the fermenting organisms. The results obtained have shown that the nutrients mixture significantly affected kinetic parameters and enhanced bioethanol production. Subsequently, the highest outputs of 60.72 ± 0.68 and 50.93 ± 1.61 g ethanol/kg were obtained respectively with O. amentacea and C. pepo. In the same time, 460.97 ± 8.66 g ethanol/kg were got as maximum output from sucrose (NG). Key words: Fruit juices, enrichment, Saccharomyces cerevisiae, fermentation, bioethanol.
Highlights
Bioetha anol producttion fro om Cu urcubitta pepo o and Opilia a amenta acea frruits using fo our strrains o of Sacc charom myces cerrevisia ae
O. amentacea juice appeared on Table 1, as the richest substratum in total sugars, with a concentration of 122.7 ± 2.3 g/L corresponding to a quantity of total sugars of 147.2 ± 2.8 g/kg of fruit while the juice of C. pepo could be distinguished like the weakest in total sugar, with its concentration of 101.1
The outputs of bioethanol production obtained in this study were 50.60 ± 0.57 g ethanol/L
Summary
Bioetha anol producttion fro om Cu urcubitta pepo o and Opilia a amenta acea frruits using fo our strrains o of Sacc charom myces cerrevisia ae. Ethanol is commercially c y produced by b fermentin ng agriculturral products that contain high sugar or starch contents. The juices s of Opilia amentacea a a and Curcub bita pepo we ere used to produce bioethanol. 7H2O) is use ed to promo ote batch ethanol pro oduction witth four strain ns of Sacch haromyces c cerevisiae as s the fermen nting organis sms. The results obtained have shown that the nutrientts mixture s significantly affected kin netic parame eters and enhanced bioethanol b production. 3 1.61 g ethanol/kg were w obtaine ed respectively with O. amentacea a a and C. pepo.
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