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Bioethanol Production from Stalk Residues of Chiquere and Gebabe Varieties of Sweet Sorghum
International Journal of Microbiology
Bioethanol produced from renewable resource has potential to solve environmental pollution and to satisfy the need of demand and supply. It favours the use of nonfood lignocellulosic materials. Ethanol produced from plant materials can sustain the economy by reducing cost of imported petroleum, emitting neutral CO2. Moreover, it enhances the economy by providing value added market opportunities for transportation and agricultural sector. Therefore, the objective of the study was to investigate bioethanol production from stalk residues of Chiquere and Gebabe varieties of sweet sorghum collected from West Arsi Zone, Ethiopia. Response surface methods with a three factor (inoculum size, pH, and dilution rate) with triplicate run by using the Box–Behnken method was referred. The experiment employed dilute acid hydrolysis, because it is an easy and productive process by treating the stalks with 4% of sulfuric acid for effective hydrolysis of substrate. Finally, the fermentation was carri...
Bioefficacy of different populations of Steinernema carpocapsae was studied against Meloidogyne incognita in laboratory condition as well as in pot condition. The mean percent mortality of M. incognita second stage juveniles were recorded after every 6 hrs intervals upto 72 hrs at different inoculum levels viz., 5, 10, 15 and 20 IJs of EPNs per cavity block in laboratory condition. Maximum (20.62) mean per cent mortality was observed with S. carpocapsae STSLU@ 20 IJs per cavity block after 72 hrs. Bioefficacy of the S. carpocapsae against M. incognita was also studied in pot condition. Maximum (37.79 cm) shoot length, (30.00 g) shoot weight, (31.79 cm) root length, (12.61g) root weight and minimum (22.83) galls per plant, (10.69) eggmasses per plant, (232) eggs and larvae per eggmass and (507.38) larvae per 200 cc soil were recorded with S. carpocapsae STSLU @ 20,000 over all other treatments.