Estimation of Sugar and Bio Ethanol from Different Decaying Fruits Extract

Bio ethanol mainly produced from biological methods involving fermentation of cellulosic biomass in a broad spectrum. Since it is being widely recognized as an environmental friendly transportation fuel with powerful economic and strategic applications, here an attempt is made to explore the possibilities of bioethanol production from decaying fruits. Since they pose a major socio economic challenge and in turn by utilizing these kinds of wastes for fuel purpose reduce the burden on the authorities. Hence, bioethanol production from three different decaying citrus fruits like Citrus sinensis, Citrus limetta and Ananas comosus were studied. The sugar content before and after fermentation was analyzed by DNS method, the result showed that the sugar content was more before fermentation (Citrus limetta 21mg/mL, Ananas comosus 20mg/mL and Citrus sinensis 17 mg/mL,) when compared to after fermentation (Citrus limetta 16mg/mL, Citrus sinensis 12.5mg /mL and Ananas comosus11mg/mL). The production of ethanol was higher in Ananas comosus (13%) than the other two Citrus limetta (12%), Citrus sinensis (10%) which was calculated by distillation method

Lipid extraction for biodiesel production from municipal sewage water sludge

Municipal sewage is a source of various lipids where the lipids can be extracted and converted to biodiesel by transesterification reaction. The present study reveals the properties of extracted Lipids like, Viscosity mm2/S, Density, kg/m3, Acid value mg KOH/g, Iodine value g I2/100 g, Value of saponification(mg KOH/g), Free fatty acid (%),Capric acid (%),Lauric acid (%),Myristic acids (%),Stearic acid (%), Oleic acid (%),Palmitic acid (%),others are studied from waste water sludge collected from Hebbala, Nayandahalli and Vrishabhavathy treatment plants located in Bangalore in both summer and Rainy seasons and revealed in the paper. The lipid content was estimated to be maximum in summer season ranging from 785 mg/g in Hebbala and 486 mg/g in Nayandahalli sludge samples. Hence, the sewage sludge proved to be a good raw material which can be utilized for the synthesis of biodiesel economically and ecofriendly, with the extension of present investigation

Comparative Study of Extraction Methods and Properties of Non Edible Oils for Biodiesel Production

Due to the limited availability of fossil fuel and environmental problems, considerable attention has been given to biodiesel production as an alternative to petro diesel. In this connection the non-edible seeds of Caryota urens, Bassia longifolia and Saraca asoca were analysed for their oil properties and fatty acids. Four different methods are tried for oil extraction among them physical method is more suited compared to Bligh and Dyer, Folch et al. and Chemical solvent extraction method and among the three seeds B. longifolia yields more oil (40mg/g) compared to S. asoca (35gm/g) and C. urens (25gm/g) and asoca

Growing of Chlorella, Scenedesmus and Botryococus in sewage water for biodiesel production

Algae grown on wastewater media are a potential source of low-​cost lipids for prodn. of liq. biofuels. This study was aimed to est. the effect of Physico-​chem. characteristics of normal and sewage water (pH 7.60 and 6.60, EC 15.97 and 12.36 μmol, free Co2 1.48 and 0.74, nitrogen 0.90 and 0.50 mg​/l, potassium 168.11 and 54.63 mg​/l, calcium 249.52 and 112.21 mg​/l, magnesium 104.91 and 51.19 mg​/l, sulfate 57.08 and 28.35 mg​/l, chloride 98.00 and 84.63 mg​/l, carbonates 362.18 and 32.64 mg​/l and bicarbonates 1138.30 and 253.33 mg​/l in sewage and normal water resp.) on Chlorella, Scenedesmus and Botryococus. The highest biomass (4.533 mg ml-​1)​, chlorophyll (15.56 μg ml-​1)​, lipid (49 %)​, acid value (0.52 mg KOH​/g)​, d. (0.885 g​/cm3)​, iodine value (75 mg​/g)​, sapon. value (0.125 mg KOH​/g)​, viscosity (4.8 mm2​/s)​, myristic acid (9.0​%)​, oleic acid (9.3​%)​, linolenic acid (20.1​%)​, palmitic acid (35.3​%)​, stearic acid (6.1​%) was obsd. in Scenedesmus than Botryococus and Chlorella. The properties of algal oil meet all the properties given by American society for testing and materials (ASTM) D6751, ISO 15607 and EN14214- Europe. Hence, it is concluded that algae can be grown better in sewage water than normal water for their oil and used as a potential feedstock for liq. biofuel prodn