Comparison of different pretreatments in ethanol fermentation using corn cob hemicellulosic hydrolysate with Pichia stipitis and Candida shehatae

Eken-Saracoglu N., Arslan Y.

BIOTECHNOLOGY LETTERS, cilt.22, sa.10, ss.855-858, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 10
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1023/a:1005663313597
  • Dergi Adı: BIOTECHNOLOGY LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.855-858
  • Anahtar Kelimeler: Candida tropicalis, corncob hydrolysate, ethanol, Pichia stipitis, zeolite
  • Gazi Üniversitesi Adresli: Hayır

Özet

A hemicellulosic hydrolysate was prepared with 0.3 M H2SO4 at 98 degrees C for 1 h. The total initial reducing sugar was maintained at 45 g l(-1) by synthetic xylose supplementation. The seven detoxification methods were employed including either the single addition of solid CaO (to pH 10 or 6) or its combinations with zeolite shaking. Over-liming gave the hydrolysate that was most completely fermented by Pichia stipitis and Candida shehatae at 30 degrees C, pH 6, among the tested methods.