pH-Dependent continuous lactic acid fermentation by Lactococcus lactis io-1 using hydrolyzed sago starch

Cirilo Nolasco-Hipolito, Edward Crabbe, Genta Kobayashi, Kenji Sonomoto, Ayaaki Ishizaki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

High dilution rate and high cell density continuous lactic acid production by Lactococcus lactis IO-1 in hydrolyzed sago starch medium was investigated using a pH-dependent feed system coupled with cross flow filtration and turbidity control. Lactate production and productivity were dependent on cell density, dilution rate and feed glucose concentration. At a cell concentration of 15 g/l and a feed glucose concentration of 50 g/l, volumetric lactate productivities of 14.9, 23.5 and 33.0 g · l-1 · h-1 were obtained at dilution rates of 0.35, 0.5 and 1.1h-1 respectively. The respective residual glucose concentrations in the permeate were 0.8, 1.0 and 3.7 g/l. On increasing the feed glucose concentration to 64 g/l, volumetric lactate productivities of 12.4 and 32.3 g · l-1 · h-1 at dilution rates of 0.21 and 0.70 h-1 were obtained while the respective residual glucose concentrations in permeate were 2.7 and 12.2 g/l.

Original languageEnglish
Pages (from-to)367-375
Number of pages9
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume44
Issue number3-4
Publication statusPublished - Feb 2000

Fingerprint

sago
lactic fermentation
Lactococcus lactis
Starch
Fermentation
Lactic Acid
Glucose
glucose
lactates
permeates
Cell Count
cells
turbidity
lactic acid

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Nolasco-Hipolito, C., Crabbe, E., Kobayashi, G., Sonomoto, K., & Ishizaki, A. (2000). pH-Dependent continuous lactic acid fermentation by Lactococcus lactis io-1 using hydrolyzed sago starch. Journal of the Faculty of Agriculture, Kyushu University, 44(3-4), 367-375.

pH-Dependent continuous lactic acid fermentation by Lactococcus lactis io-1 using hydrolyzed sago starch. / Nolasco-Hipolito, Cirilo; Crabbe, Edward; Kobayashi, Genta; Sonomoto, Kenji; Ishizaki, Ayaaki.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 44, No. 3-4, 02.2000, p. 367-375.

Research output: Contribution to journalArticle

Nolasco-Hipolito, C, Crabbe, E, Kobayashi, G, Sonomoto, K & Ishizaki, A 2000, 'pH-Dependent continuous lactic acid fermentation by Lactococcus lactis io-1 using hydrolyzed sago starch', Journal of the Faculty of Agriculture, Kyushu University, vol. 44, no. 3-4, pp. 367-375.
Nolasco-Hipolito, Cirilo ; Crabbe, Edward ; Kobayashi, Genta ; Sonomoto, Kenji ; Ishizaki, Ayaaki. / pH-Dependent continuous lactic acid fermentation by Lactococcus lactis io-1 using hydrolyzed sago starch. In: Journal of the Faculty of Agriculture, Kyushu University. 2000 ; Vol. 44, No. 3-4. pp. 367-375.
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