Activité lipolytique de quelques micro-organismes. II. - MOISISSURES

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Pour un classement des crèmes de ramassage

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UTILISATION DU MONOLAURATE DE SORBITOL COMME AGENT ÉMULSIONNANT DES GRAISSES DANS LES MILIEUX DESTINÉS A LA RECHERCHE DES MICROORGANISMES LlPOLYTIQUES

International audienc

Activité lipolytique de quelques micro-organismes (1° BACTERIES)

International audienc

LE TEST DE LA PHOSPHATASE APPLIQUÉ A LA RECHERCHE DE LA PASTEURISATION DES LAITS DE FROMAGERIE

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Etude de la nisinase produite par<i>Streptococcus thermophilus</i>

SummaryOf several strains of lactic acid bacteria which produced nisinase,Streptococcus thermophilus, strain TJ, was the most active. The optimum pH for extraction of the nisinase from an acetone preparation of bacterial cells and for incubation of the solution containing nisin and nisinase was in the neighbourhood of 7·0. The proportions of nisin destroyed by the nisinase under various conditions were determined. Also, it has been shown that nisinase has no action on a number of antibiotics, including subtilin.</jats:p

DOSAGE SIMULTANÉ DU FER ET DU CUIVRE DAIMS LE LAIT ET LES PRODUITS LAITIERS

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