Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus

Mostafa Ghasemi, Ghasem Najafpour, Mostafa Rahimnejad, Pouyan Aeineh Beigi, Mehdi Sedighi, Babak Hashemiyeh

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Whey containing 50 g.l -1lactose was fermented to lactic acid in batch process by Lactobacillus bulgaricus. The impact of 5 different media with change in volume percent of whey and nutrient was investigated at 32 ± 0.5°C. Substrate consumption and lactic acid production were determined at 0, 12, 24, 36, 48, 60 and 72 h. In these experiments, the volume percent of whey and nutrient was changed and highest lactic acid production (20.8 g/l) and rate of productivity (0.304 g/l.h) was achieved when the volume percent of whey was 80 (volume percent of nutrient diluted with water 20). The minimum rate of process was observed at the highest nutrient percent (50%), and at highest volume percent of whey in the medium (99%), inhibition occurred.

Original languageEnglish
Pages (from-to)81-84
Number of pages4
JournalAfrican Journal of Biotechnology
Volume8
Issue number1
Publication statusPublished - 5 Jan 2009
Externally publishedYes

Fingerprint

Lactobacillus delbrueckii
Lactobacillus delbrueckii subsp. bulgaricus
whey
lactic acid
Lactic Acid
Food
nutrients
Whey
Water
water

Keywords

  • Batch process
  • Lactic acid
  • Lactobacillus bulgaricus
  • Productivity
  • Whey

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Genetics
  • Molecular Biology
  • Agronomy and Crop Science

Cite this

Ghasemi, M., Najafpour, G., Rahimnejad, M., Beigi, P. A., Sedighi, M., & Hashemiyeh, B. (2009). Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus. African Journal of Biotechnology, 8(1), 81-84.

Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus. / Ghasemi, Mostafa; Najafpour, Ghasem; Rahimnejad, Mostafa; Beigi, Pouyan Aeineh; Sedighi, Mehdi; Hashemiyeh, Babak.

In: African Journal of Biotechnology, Vol. 8, No. 1, 05.01.2009, p. 81-84.

Research output: Contribution to journalArticle

Ghasemi, M, Najafpour, G, Rahimnejad, M, Beigi, PA, Sedighi, M & Hashemiyeh, B 2009, 'Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus', African Journal of Biotechnology, vol. 8, no. 1, pp. 81-84.
Ghasemi M, Najafpour G, Rahimnejad M, Beigi PA, Sedighi M, Hashemiyeh B. Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus. African Journal of Biotechnology. 2009 Jan 5;8(1):81-84.
Ghasemi, Mostafa ; Najafpour, Ghasem ; Rahimnejad, Mostafa ; Beigi, Pouyan Aeineh ; Sedighi, Mehdi ; Hashemiyeh, Babak. / Effect of different media on production of lactic acid from whey by Lactobacillus bulgaricus. In: African Journal of Biotechnology. 2009 ; Vol. 8, No. 1. pp. 81-84.
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