Efficient production of L-lactic acid from chicken feather protein hydrolysate and sugar beet molasses by the newly isolated Rhizopus oryzae TS-61

TAŞKIN M., Esim N., Ortucu S.

FOOD AND BIOPRODUCTS PROCESSING, cilt.90, ss.773-779, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 90
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.fbp.2012.05.003
  • Dergi Adı: FOOD AND BIOPRODUCTS PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.773-779
  • Anahtar Kelimeler: Rhizopus oryzae TS-61, Isolation, Chicken feather protein hydrolysate, L-Lactic acid, L(+)-LACTIC ACID, L-(+)-LACTIC ACID, STARCH, FERMENTATION, ARRHIZUS, OPTIMIZATION, MORPHOLOGY, BACTERIA, EXTRACT, GLUCOSE
  • Atatürk Üniversitesi Adresli: Evet

Özet

The aim of this study was to investigate production of L-lactic acid from molasses and chicken feather protein hydrolysate (CFP) by the newly isolated Rhizopus oryzae TS-61. R. oryzae TS-61 was capable of utilizing molasses sucrose and CFP as carbon and nitrogen sources, respectively. In contrast to yeast extract and ammonium sulfate, CFP had potential not only to prevent excessive pH changes and foaming but also to provide smaller uniform pellet formation in during fermentation. Thanks to these properties, it was concluded that CFP might have resulted in higher L-lactic acid production than the other two nitrogen sources (yeast extract and ammonium sulfate). At the end of 42-h optimal cultivation period, the highest (38.5 g/L) and lowest (28.8 g/L) concentrations of L-lactic acid were obtained with CFP and ammonium sulfate, respectively. This is the first report on use of waste chicken feather as a lactic acid production substrate. In addition, a new R. oryzae strain, being capable of using molasses sucrose as carbon source in order to produce L-lactic acid, was isolated. (C) 2012 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.