Ethanol production from pineapple waste by co-culture of saccharomyces cerevisiae TISTR 5339 and candida shehatae KCCM 11422

Main Article Content

Waesarat Soontornchaiboon
Orawan Chunhachart
Ratchapol Pawongrat

Abstract

The ethanol production from alkaline pretreated pineapple waste (core and peel) by using co-culture process of S. cerevisiae TISTR 5339 and C. shehatae KCCM 11422 was evaluated. The potential of ultrasound-assisted alkaline pretreatment was applied to enhance total reducing sugar concentration. The highest yield of total reducing sugar was
obtained at 21.84 g/g dried sample after pretreatment by 2% NaOH with ultrasonic-assistance for 60 min subsequently by enzymatic hydrolysis. The compositions of pretreated pineapple waste were 40.52±0.99% cellulose, 24.03±1.52% hemicellulose and 2.27±0.23% lignin. However, the dry matter loss reached to 44.67±3.21% after pretreatment. The structural changes of pretreated pineapple waste were observed by scanning electron microscopy (SEM). The maximum ethanol concentration and ethanol yield after 24 h fermentation were 9.73±0.15g/L and 0.45±0.01 g/g, respectively.

Article Details

How to Cite
Soontornchaiboon, W., Chunhachart, O., & Pawongrat, R. (2016). Ethanol production from pineapple waste by co-culture of saccharomyces cerevisiae TISTR 5339 and candida shehatae KCCM 11422. Asia-Pacific Journal of Science and Technology, 21(2), 347–355. https://doi.org/10.14456/kkurj.2016.48
Section
Research Articles

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