Volume 52, Number 513-514, 1972
|Page(s)||175 - 192|
Aptitude de l'espèce Penicillium caseicolum à la production d'enzymes lipolytiquesG. LAMBERET and J. LENOIR
Laboratoire de Recherche de la Chaire de Technologie (I.N.R.A.). Ecole Nationale Supérieure Agronomique de Grignon (78)
(Reçu pour publication le 26 octobre 1971.)
Abstract - Aptitude of Penicillium caseicolum in production of lipolytic enzymes
The aptitude of Penicillium caseicolum lipases has been searched for in a collection of about 100 strains of various origins by cultivation in liquid medium. The lipasic activity has been tested on culture filtrates by measuring the pH variations in a slightly buffered emulsion of tributyrin. The strains of P. caseicolum show lipasic activities that may be quite different, the variations of these activities being possible between 1 and 10. The repartition of the strains, according to their activity, show the caracteristics of a bimodal type distribution, and two homogeneous under-groups can be distinguished. A positive correlation is shown between the extracellular lipasic and proteolytic activities.