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Rani, P.
- Ethanol Production from Potato Flour by Saccharomyces cerevisiae
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Authors
Affiliations
1 Department of Microbiology, CCS Haryana Agricultural University, Hisar-125004, IN
1 Department of Microbiology, CCS Haryana Agricultural University, Hisar-125004, IN
Source
Indian Journal of Science and Technology, Vol 3, No 7 (2010), Pagination: 733-736Abstract
Flour prepared from potato tubers (Solanum tuberosum) after cooking and drying at 70°C was used for ethanol production. Homogenous slurry of potato flour was prepared in water at solid liquid ratio 1:4. Liquefaction of potato flour slurry with α-amylase (2.05 DUN U/g starch) at 80°C for 30 min followed by saccharification with glucoamylase (20.5 GA U/g starch) at 60°C for 2 h generated 15.2% total reducing sugars in the hydrolysate. Fermentation of hydrolysate with Saccharomyces cerevisiae HAU-1 at 30°C for 48 h resulted in production of 56.8 gl-1 ethanol. Supplementation of nitrogen sources to potato flour did not contribute significantly to ethanol yield. Simultaneous saccharification and fermentation of hydrolysate was as effective as separate hydrolysis and fermentation.Keywords
Ethanol, Fermentation, Liquefaction, Potato Flour, Saccharification, S. cerevisiaeReferences
- AOAC (1990) Official methods of analysis. 15th edn. Assoc. of official analytical chemists. Washington DC, USA.
- Cazetta ML, Celligoi MA, Buzato JB and Searmino IS (2007) Fermentation of molasses by Zymomonas mobilis: Effects of temperature and sugar concentration on ethanol production. Biores. Technol. 98, 2824-2828.
- Chen HZ, Xu J and Li ZH (2007) Temperature cycling to improve the ethanol production with solid state simultaneous saccharification and fermentation. Prikl Biokhim Mikrobiol. 43: 65-68.
- Fundora N, Vldes I, Garcia R, Hernandez LM, Porto O and Gonzalez MD (2000) Influence of nitrogen salts on alcohol production. Revista ICIDCA Sobre Los Derivados De La. Cana. Dec Azucar, 34, 2.
- Hill J, Nelson E, Tilman D, Polasky S and Tiffancy D (2006) Environmental, economic and energetic costs and benefits of biodiesel and ethanol biofuels. Proc. of the Nat. Academy of Sci. USA, 103, 11206-11210.
- Kobayashi F, Sawada T, Nakamuraa Y, Ohnaga M, Godliving M and Ushiyama T (1998) Saccharification and alcohol fermentation in starch of steam exploded potato. Appl. Biochem. Biotechnol. 69, 177-189.
- Miller GL (1959) Use of dinitrosalicylic acid reagent for determination of reducing sugar. Anal. Chem. 31, 426- 428.
- Montesinos T and Navarro J (2000) Production of alcohol from raw wheat flour by amyloglucosidase and Saccharomyces cerevisiae. Enz. Microb. Technol. 27, 362.
- Narde A (2009) Distilleries in India. In: sugar India year book’09 (ed. Ajit Narde) Anekant Prakashan, Kolhapur. pp:401-432.
- Rani P, Garg FC, Sharma SS and Wati L (2009) Ethanol production from potato starch. Ind. Food Packer. 63(4), 63-68.
- Shigechi H, Koh J, Fujita Y, Matsumoto T, Bito Y, Ueda M, Satoh E and Kondo A (2004) Direct production of ethanol from raw corn starch via fermentation by use of a novel surface- engineered yeast strain co-displaying glucoamylase and alphaamylase. Appl. Environ. Microbiol. 70, 5037- 5040.
- Szambelan K, Nowak J and Czarnecki Z (2004) Use of Zymomonas mobilis and Saccharomyces cerevisiae mixed with Kluyveromyces fragilis for improved ethanol production from Jerusalem artichoke tubers. Biotechnol. Lett. 26, 845-848.
- Wang FQ, Gao CJ, Yang CY and Xu P (2007) Optimization of an ethanol production medium in very high gravity fermentation. Biotechnol. Lett. 29, 233- 236.
- Ecological Status of River Daha in North Bihar and its Effects on Fish Diversity
Abstract Views :117 |
PDF Views:0
Authors
Affiliations
1 Department of Zoology, D.A.V. P.G. College, Siwan-841 226, Bihar, IN
1 Department of Zoology, D.A.V. P.G. College, Siwan-841 226, Bihar, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 2 (2011), Pagination: 293-295Abstract
The paper deals with the ecological studies of River Daha in north Bihar in relation to its physico-chemical charactersitics and the fish fauna. The fish fauna is greatly affected by the characteristics of water and level of pollution. The reiver is periodically gets much polluted due to discharge of sugar factories wastes and distilley effluents as reflected by low dissolved oxygen, high BOD and COD values and low pH. In all, 32 species of fish belonging to 7 Orders, 15 Families and 19 Genera were reported from the river. Many of these species come in the category of hardy fishes reflecting their tolerance to polluted conditions.Keywords
River Daha, Fish Diversity, Ecological Status.- Ecological Investigations of Daha River of Siwan, Bihar
Abstract Views :112 |
PDF Views:3
Authors
Reeta Kumari
1,
P. Rani
2
Affiliations
1 Department of Zoology, D.A.V. College, Siwan-841 226, Bihar, IN
2 Department of Zoology, Patna Science College, Patna-800 005, Bihar, IN
1 Department of Zoology, D.A.V. College, Siwan-841 226, Bihar, IN
2 Department of Zoology, Patna Science College, Patna-800 005, Bihar, IN