Bioethanol Production from Ipomoea Carnea Biomass Using a Potential Hybrid Yeast Strain

Kumari, Rajni; Pramanik, Krishna
October 2013
Applied Biochemistry & Biotechnology;Oct2013, Vol. 171 Issue 3, p771
Academic Journal
The paper deals with the exploitation of Ipomoea carnea as a feedstock for the production of bioethanol. Dilute acid pretreatment under optimum conditions (3 %HSO, 120 °C for 45 min) produced 17.68 g L sugars along with 1.02 g L phenolics and 1.13 g L furans. A combination of overliming and activated charcoal adsorption facilitated the removal of 91.9 % furans and 94.7 % phenolics from acid hydrolysate. The pretreated biomass was further treated with a mixture of sodium sulphite and sodium chlorite and, a maximum lignin removal of 81.6 % was achieved. The enzymatic saccharification of delignified biomass resulted in 79.4 % saccharification with a corresponding sugar yield of 753.21 mg g. Equal volume of enzymatic hydrolysate and acid hydrolysate were mixed and used for fermentation with a hybrid yeast strain RPRT90. Fermentation of mixed detoxified hydrolysate at 30 °C for 28 h produced ethanol with a yield of 0.461 g g. A comparable ethanol yield (0.414 g g) was achieved using a mixture of enzymatic hydrolysate and undetoxified acid hydrolysate. Thus, I. carnea biomass has been demonstrated to be a potential feedstock for bioethanol production, and the use of hybrid yeast may pave the way to produce bioethanol from this biomass.


Related Articles

  • Use of tropical maize for bioethanol production. Chen, Ming-Hsu; Kaur, Prabhjot; Dien, Bruce; Below, Frederick; Vincent, Michael; Singh, Vijay // World Journal of Microbiology & Biotechnology;Aug2013, Vol. 29 Issue 8, p1509 

    Tropical maize is an alternative energy crop being considered as a feedstock for bioethanol production in the North Central and Midwest United States. Tropical maize is advantageous because it produces large amounts of soluble sugars in its stalks, creates a large amount of biomass, and requires...

  • Fuel ethanol production from biomass conversion in Iran. Payamara, Johangir; Payamara, Aria // International Journal of ChemTech Research;Jul2011, Vol. 3 Issue 3, p1446 

    Bamboo is a fast growing woody grass which is abundon in ponds of enzali port &Majnun Island in the North and South of Iran respectively that has great potential to be used as fuel ethanol production. It contains about 40% cellulose and 27% hemicelluloses respectively. In this...

  • Untitled. Impey, Louise // Farmers Weekly;12/9/2011, Vol. 156 Issue 24, p7 

    The article offers information on two projects in Great Britain which found that triticale provides additional benefits over wheat for the production of biofuel. It says that the projects examined the potential for triticale to be one of the most popular used feedstock for bioethanol...

  • The new ethanol. Lerner, Ivan // ICIS Chemical Business;6/21/2010, Vol. 277 Issue 22, p24 

    The article discusses the use of non-food-related feedstocks in producing cellulosic ethanol (CE), which is considered to be the next generation of biofuels in the U.S. Laurence Alexander, analyst at global investment bank Jeffries & Co., that the gap between corn-based ethanol and CE is...

  • Bioethanol from Macroalgal Biomass: Utilization of Marine Yeast for Production of the Same. Khambhaty, Yasmin; Upadhyay, Devang; Kriplani, Yogesh; Joshi, Nidhi; Mody, Kalpana; Gandhi, M. // BioEnergy Research;Mar2013, Vol. 6 Issue 1, p188 

    The present study deals with the first systematic study on the isolation, characterization, and utilization of marine yeast for bioethanol production using seaweed biomass. The ability and efficiency of isolated marine yeast to grow and ferment sugar to ethanol in the presence of 2.5 % to 15 %...

  • The Ethanol Tolerance of Pachysolen tannophilus in Fermentation on Xylose. Lei Zhao; Jianliang Yu; Xu Zhang; Tianwei Tan // Applied Biochemistry & Biotechnology;Jan2010, Vol. 160 Issue 2, p378 

    Abstract  The influence of ethanol on fermentation by Pachysolen tannophilus was studied. When xylose utilization rate was 80%, ethanol concentration began to decline. Fermentation of P. tannophilus was affected by ethanol addition in the beginning of fermentation; average xylose...

  • Kenya wetlands proposal causes outcry.  // Southern African Tourism Update;2008, Issue 199, p8 

    The article deals with the plans of the Kenyan government to convert its Tana Wetlands into sugar-cane plantations. The sugar-cane is intended to be used in the production of ethanol for the manufacturing of biofuels. An appeal has been made by Wetlands International for the protection of the...

  • Enzymatic hydrolysis of market vegetable waste and subsequent ethanol fermentation-Kinetic evaluation. Chiranjeevi, T.; Uma, A.; Radhika, K.; Baby Rani, G.; Prakasham, R. S.; Srinivasa Rao, P.; Umakanth, A. V. // Journal of Biochemical Technology;2014, Vol. 5 Issue 4, p775 

    In this work, kinetic properties evaluation was made for bioethanol production from sugar hydrolysate of vegetable waste. The saccharified sugars were fermented by using Saccharomyces cerevisiae. The effect of various saccharification factors on sugars release were studied and observed that the...

  • Bioethanol (Biofuel) Production from Low Grade Dates. Abbas, Raghad Ali; Flayeh, Hussain M. // Iraqi Journal of Chemical & Petroleum Engineering;2019, Vol. 20 Issue 4, p41 

    Bioethanol production from sugar fermentation is one of the most sustainable alternatives to substitute fossil fuel. production of bioethanol from low grade dates which are rich of sugars. An available sugar from a second grade dates (reduction sugar) was 90g/l in this study. Sugar can be served...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics