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Purification and properties of an acid lipase from Penicillium roqueforti

Published online by Cambridge University Press:  01 June 2009

Gilles Lamberet
Affiliation:
Laboratoire de Recherches de la Chaire de Technologie (I.N.R.A.), Institut National Agronomique Paris-Grignon, 78850 Thiverval Grignon, France
Aimé Menassa
Affiliation:
Laboratoire de Recherches de la Chaire de Technologie (I.N.R.A.), Institut National Agronomique Paris-Grignon, 78850 Thiverval Grignon, France

References

The extracellular acid lipase produced by Penicillium roqueforti strain 1173 was purified by precipitation with 50 % ethanol, DEAE Sephadex A 50 ion exchange chromatography and 2 successive treatments with SP Sephadex C 50. An ~ 400-fold purification with a 35 % yield was obtained. The enzyme was active from pH 1·7–10·5, with an optimum activity pH of 6·5 at 20 °C and 6·0 at 30 °C. A second minor optimum appeared close to pH 2·5 and there was a minimum activity at pH 3·6. In the presence of 0·1 M-CaCl2 at 30 °C, the optimum was at pH 5·5, also the pH value where inhibition by CaCl2 was least (9%). The pH stability curve at 30 °C showed no discontinuities and had a maximum between pH 3·7 and 6·0. At pH 6·5 activity at 5 °C represented 37 % of the maximum value, which was reached at 35–40 °C and the apparent activation energy was about 5·42 kcal mol-1. Between pH 4·0 and 7·0, the ratio of hydrolysis velocity at 30 °C compared to that at 20 °C ranged from 2·1 to 1·2. At pH 6·0, the enzyme began to be inactivated at temperatures above 35 °C with decimal destruction times (D values) of 150, 29 and 4 min for respective temperatures of 40, 45 and 50 °C. In terms of substrate specificity the maximum activity was obtained with tricaproin whilst with tributyrin, tricaprylin, butter oil and triolein relative velocities were 22, 6·7, 3·0 and 1·5% respectively of that for tricaproin whilst Tween 20 and triacetin were 2·5 and 2% respectively.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1983

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References

REFERENCES

Downey, W. K. & Andrews, P. 1965 Gel filtration applied to the study of lipases and other esterases. Biochemical Journal 94 642650CrossRefGoogle Scholar
Eitenmiller, R. R., Vakil, J. R. & Shahani, K. M. 1970 Production and properties of Penicillium roqueforti lipase. Journal of Food Science 35 130133CrossRefGoogle Scholar
Gripon, J. C. 1973 [Study of the proteolytic system of Penicillium roqueforti. Production conditions, partial purification and properties.] Thesis, University of Caen (France)Google Scholar
Imamura, T. & Kataoka, K. 1963 Biochemical studies on the manufacturing of Roquefort type cheese. II. Characteristics of lipases produced by Penicillium roqueforti. Japanese Journal of Zootechnical Science 34 349353Google Scholar
Imamura, T. & Kataoka, K. 1966 Biochemical studies on the manufacturing of Roqueforti type cheese. III. Isolation of lipase from mould-culture. Japanese Journal of Dairy Science 15 A138142Google Scholar
Kosugi, Y. & Suzuki, H. 1974 Affinity chromatographic studies on the adsorption of lipases on aliphatic amines Sephadex 4 B. Journal of Fermentation Technology 52 577582Google Scholar
Laboureur, P. & Labrousse, M. 1966 [Lipase from Rhizopus arrhizus. Preparation, purification and properties of the lipase from Rhizopus arrhizus var. delemar.] Bulletin de la Société de Chimie Biologique. 48 747770Google Scholar
Laemmli, U. K. 1970 Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature 227 680685CrossRefGoogle ScholarPubMed
Lamberet, G. & Menassa, A. 1982 [Determination of lipolytic activity in blue veined cheeses.] Symposium international sur l'utilisation des enzymes en technologie alimentaire. Paris: Technique et Documentation LavoisierGoogle Scholar
Lobyreva, L. B. & Marchenkova, A. I. 1980 [Isolation and characteristics of lipases from Penicillium roqueforti.] Mikrobiologiya 49 924930Google ScholarPubMed
Lobyreva, L. B. & Marchenkova, A. I. 1981 [Characteristics of lipases in the cultural broth of Penicillium roqueforti.] Mikrobiologiya 50 9095Google ScholarPubMed
Menassa, A. & Lamberet, G. 1982 [The lipolytic system of Pencillium roqueforti: comparative characteristics of two extracellular activities] Lait 62 3243CrossRefGoogle Scholar
Morris, H. A. & Jezeski, J. J. 1953 The action of microorganisms on fats. II. Some characteristics of the lipase system of Penicillium. roqueforti. Journal of Dairy Science 36 12851298CrossRefGoogle Scholar
Rachev, R., Peeva, Yu. J., Panova, V. & Pelenski, I. 1977 [The lipolytic system of Penicillium roqueforti. Determination of the optimal conditions for the synthesis of lipolytic enzymes in the culture medium. Isolation and properties II.]. Symposium po Enzyman S.E.W. Pöznam 124Google Scholar
Shipe, W. F. 1951 A study of the relative specificity of lipases produced by Penicillium roqueforti and Aspergillus niger. Archives of Biochemistry and Biophysics 30 165172Google ScholarPubMed
C.Weast, R. Weast, R. (Ed.) 19671968 Handbook of Chemistry and Physics 48th edn Cleveland, Ohio: Chemical Rubber Co.Google Scholar