Alcohol fermentation of enzymatic hydrolysate of exploded rice straw byPichia stipitis

✍ Scribed by M. Moniruzzaman

• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 240 KB
• Volume: 11
• Category: Article
• ISSN: 1573-0972
• DOI: 10.1007/bf00361008

✦ Synopsis

The xylose in an enzymatic hydrolysate of steam-exploded rice straw was not consumed by Pichiu stipifis until the glucose was almost exhausted. A diauxic lag of 2 to 3 h in both cell growth and ethanol production occurred as metabolism switched from glucose to xylose utilization. Ethanol production was maximal [6 g ethanol1 from 15 g reducing sugars/l (78% theoretical yield)] at an aeration rate of 0.2 vol/vol. min.