Bioethanol Production from Fruit and Vegetable Wastes

Bhuvaneswari, Meganathan; Sivakumar, Nallusamy

doi:10.1002/9781119434436.ch20

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…The ethanol concentration decreased with increasing pH which agreed with previous findings [15,20]. On the other hand, the ethanol production decreased with increasing time beyond 24 h, which contradicted with previous studies, implying that optimum incubation time ranged from 36 to 72 h [6,14,15,21]. At constant temperature of 35 o C, the maximum ethanol concentration of 0.2101 g/ml was achieved at 24 h with pH 3.0.…”

Section: Fig 2 (A) 3d Surface Plot (B) Contour Plot Of Effect Of Ph A...contrasting

confidence: 43%

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Optimization of bioethanol production from papaya waste through fermentation using response surface methodology (RSM)

2023

Sustainable Processes and Clean Energy Transition

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Abstract. There is a growing pressure for the development of sustainable and environmental-friendly source of energy such as ethanol that could substitute the depleting fossil fuels. Papaya waste including papaya seed and papaya peel is one of the main fruit wastes in Southeast Asia which has great potential to be utilized as substrate for bioethanol production. In this study, papaya waste was fermented to produce bioethanol using Saccharomyces Cerevisiae. The effect of pH, temperature, and incubation time on bioethanol production was studied within the range of 3.0-6.0, 25-45°C and 24-96 h, respectively. These parameters were optimized using Response Surface Methodology (RSM) based Box-Behnken Design (BBD). It was found that a maximum ethanol concentration of 0.2224 g/ml was obtained from papaya waste at pH 4.5, 45°C and 24 hours. The significance of the parameters increased from incubation time, pH to temperature.

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Section: Fig 2 (A) 3d Surface Plot (B) Contour Plot Of Effect Of Ph A...contrasting

confidence: 43%

“…However, increase in bioethanol production using first-generation biofuels has raised concerns about food security and fertile land. Thus, the exploration for second-generation biomass has mostly concentrated on cheap and abundant lignocellulosic municipal waste [4][5][6].…”

Section: Introductionmentioning

confidence: 99%