Screening of yeast isolates from flowers for effective ethanol production

ASMA CHAUDHARY; SHUICHI KARITA

Makale detayları

Screening of yeast isolates from flowers for effective ethanol production

Yazarlar:

ASMA CHAUDHARY | SHUICHI KARITA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2017 Vol.41 Issue 6, pp.890-900

Belge Tipi:

Makale

Yayın Tarihi:

11/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000811295

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Özet:

 

The use of alternative substrates to produce biofuel is a striking option nowadays. This study aimed to screen bioethanol-producing yeast strains. From different flowers, 65 yeasts were isolated. Twelve isolates assimilated glucose by liberation of CO2 anaerobically. Out of these, only 5 yeast isolates fermented glucose in medium consisting of 0.8 g/L Mg2+ ions to produce 2.05 ±±\pm 0.03% ethanol. The selected five strains were identified as members of the genera Metschnikowia or Meyerozyma based on molecular characterization. Selected yeast strains were used for conversion of rice into bioethanol following dilute acid hydrolysis and fermentation. Consistent ethanol production was 1.80 ±±\pm 0.05% at days 2-4 by Metschnikowia cibodasensis Y34 and 2.20 ±±\pm 0.21% by Meyerozyma caribica Y42 at days 4-6 with a gradual decrease at the time of experiment termination (day 10). Metschnikowia cibodasensis Y34 and Meyerozyma caribica Y42 produced the highest ethanol at pH 3, i.e. 1.75 ±±\pm 0.14% at days 3 and 5 and 2.05 (±±\pm) 0.14% at days 1 and 3, respectively, upon incubation with different pH levels and 1% NaCl. Growth and ethanol production at pH 4 and 5 was close to that at pH 3, with a slight increase in production by Metschnikowia cibodasensis Y34 at pH 4 up to day 3.

Makale detayları

Screening of yeast isolates from flowers for effective ethanol production

Yazarlar: ASMA CHAUDHARY | SHUICHI KARITA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Biology 2017 Vol.41 Issue 6, pp.890-900

Belge Tipi: Makale

Yayın Tarihi: 11/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000811295

Sıklık: İki Aylık

eISSN: 1303-6092

pISSN: 1300-0152

Sayı

Yazarlar:

ASMA CHAUDHARY | SHUICHI KARITA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2017 Vol.41 Issue 6, pp.890-900

Belge Tipi:

Makale

Yayın Tarihi:

11/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000811295

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152