Abstract
The relationship between substrate inhibition and maintenance energy ofChlamydomonas reinhardtii grown heterotrophically on acetate was investigated. At low acetate concentrations (<0.4 g l−1), where no inhibition of cell growth was observed, the cell growth yield and specific growth rate could be represented by the Pirt model, 1/Y=1/Y g +m/μ with a constant value of maintenance energy coefficient m. However, at high acetate concentrations (>0.4 g l−1), inhibition of cell growth occurred, in which m became variable and dependent on the acetate concentration. A simple mathematical model was proposed to predict the actual maintenance energy coefficient m in the inhibited cultures and experimentally validated.
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Borowitzka MA (1994) Products from algae. In Phang SM, Lee YK, Borowitzka MA, Whitton BA (eds), Algal Biotechnology in the Asia-Pacific Region. University of Malaya, Kuala Lumpur: 5–15.
Chen F (1993) High Cell Density Culture ofChlamydomonas reinhardtii on Acetate under Heterotrophic Conditions of Growth. Ph.D. Thesis, The University of Queensland.
Chen F, Johns MR (1994a) Substrate inhibition ofChlamydomonas reinhardtii by acetate in heterotrophic culture. Process Biochem. 29: 245–252.
Chen F, Johns MR (1994b) Substrate inhibition kinetics of heterotrophicChlamydomonas reinhardtii. In Phang SM, Lee YK, Borowitzka MA, Whitton BA (eds), Algal Biotechnology in the Asia-Pacific Region. University of Malaya, Kuala Lumpur: 134–139.
Chen F, Johns MR (1995) A strategy for high cell density culture of heterotrophic microalgae with inhibitory substrates. J. appl. Phycol. 7: 43–46.
Cutayar JM, Poillon D (1989) High cell density culture ofE. coli in a fed-batch system with dissolved oxygen as substrate feed indicator. Biotechnol. Lett. 11: 155–160.
Fieschko J, Humphrey AE (1983) Effects of temperature and ethanol concentration on the maintenance and yield coefficient ofZymomonas mobilis. Biotechnol. Bioengng 25: 1655–1660.
Harrison DEF, Topiwapa HH (1974) Transient and oscillatory states of continuous culture. Adv. Biochem. Eng. 3: 167–219.
Johns MR, Tan CK, Chen F (1989) Heterotrophic microalgal production of chemicals. Proc. Eighth Australian Biotechnology Conference. Univ. of New South Wales, Sydney: 542–545.
Lee KJ, Skotnicki ML, Tribe DE, Rogers PL (1980) Kinetic studies on a highly productive strain ofZymomonas mobilis. Biotechnol. Lett. 2: 339–344.
Maiorella B, Blanch HW Wilke CR (1983) By-product inhibition effects on ethanolic fermentation bySaccharomyces cerevisiae. Biotechnol. Bioengng 25: 103–121.
Pirt SJ (1965) The maintenance energy of bacteria in growing cultures. Proc. Roy. Soc. Lond. B163: 224–231.
Pirt SJ (1975) Principles of Microbe and Cell Cultivation. Halsted Press, New York.
Pirt SJ (1982) Maintenance energy: a general model for energy-limited and energy-sufficient growth. Arch Microbiol. 133: 300–302.
Richmond A (1992) Open systems for the mass production of photoautotrophic microalgae outdoors: physical principles. J. appl. Phycol. 4: 281–286.
Sager R, Granick S (1953) Nutritional studies withChlamydomonas reinhardtii. Annals New York Academy of Sciences 56: 831–838.
Starr RC, Zeikus JA (1993) UTEX-the culture collection of algae at the University of Texax at Austin. J. Phycol. 29 (suppl.): 1–106.
Stouthamer AH (1979) The search for correlation between theoretical and experimental growth yields. International Review Biochemistry 21: 1–48.
Tseng MM, Wayman M (1975) Kinetics of yeast growth: inhibition-threshold substrate concentrations. Can. J. Microbiol. 21: 994–1003.
Yang ST, Okos MR (1987) Kinetic study and mathematical modeling of methanogenesis of acetate using pure culture of methanogens. Biotechnol. Bioengng 30: 661–667.
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Chen, F., Johns, M.R. Relationship between substrate inhibition and maintenance energy ofChlamydomonas reinhardtii in heterotrophic culture. J Appl Phycol 8, 15–19 (1996). https://doi.org/10.1007/BF02186216
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DOI: https://doi.org/10.1007/BF02186216