Effects of Culture Conditions on the Fermentation of Xylose to Ethanol by Candida shehatae
نویسنده
چکیده
This research examined four factors on the fermentation of xylose by Candida shehatae, and the following conclusions were reached: (1) A minimal medium is effective for producing ethanol. (2) Peptone and casamino acids stimulate ethanol production. (3) Aeration is important inobtaining good ethanol production rates and yields. (4) The maximal rate ofethanol production is attained around pH 3.2-3.4.Under the best conditions employed, C. shehatae ATCC 22984 produced up to 4% (w/v) ethanol from 20% xylose in four days. With 9% xylose, ethanol yields approximating 0.4 g/g xylose were obtained.
منابع مشابه
Continuous ethanol production from D-xylose by Candida shehatae.
Much progress has been made since the discovery that some yeasts can ferment D-xylose to ethanol. 1 Initially, only a few yeasts were found that could produce ethanol from D-xylose. Today, at least eight species of yeasts are known to produce significant amounts of ethanol from D-xylose. 2,4-6 Three of these species have been studied extensively: Pachysolen tannophilus, Candida shehatae, and Pi...
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