The Experts below are selected from a list of 1998 Experts worldwide ranked by ideXlab platform
Gopinath Halder - One of the best experts on this subject based on the ideXlab platform.
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Biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell–derived heterogeneous catalyst: parametric optimization by Taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel. Graphical abstract
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biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell derived heterogeneous catalyst parametric optimization by taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel.
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Computational simulation and statistical analysis of bioethanol production from Madhuca indica by batch fermentation process using Saccharomyces cerevisiae
Sustainable Energy Technologies and Assessments, 2016Co-Authors: Gopinath Halder, Sumit H. Dhawane, Debaprasad Dutta, Sohan Dey, Soumya Banerjee, Shraboni Mukherjee, Madhumanti MondalAbstract:Abstract Madhuca indica (Mahua flowers) abundantly available in tropical region of India was used to produce bioethanol using Saccharomyces cerevisiae in batch fermentation process. The experiments were investigated at three different initial substrate concentrations at 30 °C for 96 h maintaining pH at 5. A regression analysis on various kinetic models was performed to illustrate the concentration – time evolutions. Each model was analyzed to determine the various constraints like R2, R2adjusted, root mean square deviation (RMSD) and variances for different experimental runs. 4th order Runge-Kutta method was employed to obtain the performance curves to predict its compatibility with experimental profiles. Hinshelwood model fits the concentration time profile most satisfactorily and can predict the bioethanol yield within acceptable error range. Hence, the Hinshelwood model could be applied to predict the bioethanol yield and describe the kinetics of batch fermentation of Madhuca indica.
Sumit H. Dhawane - One of the best experts on this subject based on the ideXlab platform.
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Biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell–derived heterogeneous catalyst: parametric optimization by Taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel. Graphical abstract
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biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell derived heterogeneous catalyst parametric optimization by taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel.
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Computational simulation and statistical analysis of bioethanol production from Madhuca indica by batch fermentation process using Saccharomyces cerevisiae
Sustainable Energy Technologies and Assessments, 2016Co-Authors: Gopinath Halder, Sumit H. Dhawane, Debaprasad Dutta, Sohan Dey, Soumya Banerjee, Shraboni Mukherjee, Madhumanti MondalAbstract:Abstract Madhuca indica (Mahua flowers) abundantly available in tropical region of India was used to produce bioethanol using Saccharomyces cerevisiae in batch fermentation process. The experiments were investigated at three different initial substrate concentrations at 30 °C for 96 h maintaining pH at 5. A regression analysis on various kinetic models was performed to illustrate the concentration – time evolutions. Each model was analyzed to determine the various constraints like R2, R2adjusted, root mean square deviation (RMSD) and variances for different experimental runs. 4th order Runge-Kutta method was employed to obtain the performance curves to predict its compatibility with experimental profiles. Hinshelwood model fits the concentration time profile most satisfactorily and can predict the bioethanol yield within acceptable error range. Hence, the Hinshelwood model could be applied to predict the bioethanol yield and describe the kinetics of batch fermentation of Madhuca indica.
Somnath Chowdhury - One of the best experts on this subject based on the ideXlab platform.
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Biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell–derived heterogeneous catalyst: parametric optimization by Taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel. Graphical abstract
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biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell derived heterogeneous catalyst parametric optimization by taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel.
Bina S. Siddiqui - One of the best experts on this subject based on the ideXlab platform.
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Arbutin derivatives from the seeds of Madhuca latifolia.
Natural product communications, 2011Co-Authors: Shazia Khan, M. Nadeem Kardar, Bina S. SiddiquiAbstract:A new arbutin derivative, madhuglucoside (1), along with three known arbutin derivatives were isolated from the seeds of Madhuca latifolia in addition to seven other known constituents. Their structures were established on the basis of spectral analysis. Compounds 1a, 2a and 3a were obtained in a pure state after acetylation of the mother fraction and characterized as their acetyl derivatives.
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A new isoflavone from the fruits of Madhuca latifolia
Natural product research, 2010Co-Authors: Bina S. Siddiqui, Shazia Khan, M. Nadeem KardarAbstract:A new isoflavone, 3′,4′-dihydroxy-5,2′-dimethoxy-6,7-methylendioxy isoflavone, was isolated from the Madhuca latifolia fruit coatings. The structure was elucidated on the basis of spectral and chemical evidence.
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A new triterpenoid, madhunolic acid, from the seeds of Madhuca latifolia.
Journal of Asian Natural Products Research, 2007Co-Authors: Bina S. Siddiqui, Shazia Khan, M. Nadeem Kardar, S PerwaizAbstract:A new triterpenoid, madhunolic acid, along with the three known constituents stigmasterol, 4-hydroxymethyl benzoate, and hydroquinone were isolated from the fruit seeds of Madhuca latifolia. The structure of the new compound was elucidated as 2β,3β,23-trihydroxyurs-5,12,20-trien-28-oic acid (1) on the basis of spectral data and chemical evidence.
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A new triterpenoid, madhunolic acid, from the seeds of Madhuca latifolia.
Journal of Asian natural products research, 2007Co-Authors: Bina S. Siddiqui, Shazia Khan, M. Nadeem Kardar, S PerwaizAbstract:A new triterpenoid, madhunolic acid, along with the three known constituents stigmasterol, 4-hydroxymethyl benzoate, and hydroquinone were isolated from the fruit seeds of Madhuca latifolia. The structure of the new compound was elucidated as 2beta,3beta,23-trihydroxyurs-5,12,20-trien-28-oic acid (1) on the basis of spectral data and chemical evidence.
Bipul Jha - One of the best experts on this subject based on the ideXlab platform.
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Biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell–derived heterogeneous catalyst: parametric optimization by Taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel. Graphical abstract
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biodiesel synthesis from transesterified Madhuca indica oil by waste egg shell derived heterogeneous catalyst parametric optimization by taguchi approach
Biomass Conversion and Biorefinery, 2019Co-Authors: Somnath Chowdhury, Sumit H. Dhawane, Bipul Jha, Sucharita Pal, Ramanand Sagar, Adil Hossain, Gopinath HalderAbstract:The present study investigates the synthesis of biodiesel from Madhuca indica oil (MIO) employing waste egg shell–derived heterogeneous catalyst. The catalyst, developed by calcination of waste egg shells and successive impregnation of sodium using sodium nitrate, was employed to catalyse transesterification of waste Madhuca indica seeds–derived non-edible oil. The productivity of biodiesel in terms of yield was optimized to attain maximum conversion employing Taguchi approach. Initially, parameters affecting the yield were identified statistically and optimized condition for each significant parameter was derived using 3FI model. Among the selected parameters, yield was mainly affected by Methanol to oil ratio (M/O), reaction temperature, and the sodium nitrate concentration kept at the time of impregnation (MCI). The selected optimization technique revealed its accuracy in prediction of maximum biodiesel yield of 81.56% at M/O 9:1, MCI 5%, and temperature 60 °C. The predicted optimized conditions were validated by confirmatory experiments. The produced biodiesel was also characterized by following ASTM standards. Thus, overall results have proved that the waste egg shell–derived catalyst is reusable and bears appreciable catalytic activity for catalysing the transesterification of poor-quality MIO. Hence, it could be said that the proposed study would be beneficial in converting waste into active solid catalyst and renewable fuel.
