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Gamma-irradiation sterilization of lipases for cheese making

Journal Article:

Abstract

The possibility of sterilizing the enzyme compounds of lipases from Oospora fragrans strains by gamma irradiation was studied. The enzyme compounds were exposed to gamma irradiation at the doses from 0.1 to 0.8 Mrad with the discreteness of 0.1 Mrad and at the dose of 2.0 Mrad. After the radiation treatment the lipases were investigated for bacterial invasion by the cultivation method and for the lipolytic activity by the titrometrical method. It is shown that the sterilization effect is achieved without losses of lipase activity and the radiation dose necessary for sterilization depends on initial invasion levels in the enzyme compounds.
Authors:
Umanskij, M S; Borovkova, Yu A; Odegov, N I [1] 
  1. Vsesoyuznyj Nauchno-Issledovatel'skij Inst. Maslodel'noj i Syrodel'noj Promyshlennosti, Uglich (USSR)
Publication Date:
Mar 01, 1979
Product Type:
Journal Article
Reference Number:
AIX-11-527922; EDB-80-086449
Resource Relation:
Journal Name: Prikl. Biokhim. Mikrobiol.; (USSR); Journal Volume: 15:2
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; LIPASES; RADIOPASTEURIZATION; CHEESE; GAMMA RADIATION; MICROORGANISMS; RADIATION DOSES; STERILIZATION; DOSES; ELECTROMAGNETIC RADIATION; ENZYMES; ESTERASES; FOOD; HYDROLASES; IONIZING RADIATIONS; IRRADIATION; MILK PRODUCTS; PASTEURIZATION; RADIATIONS; 560132* - Radiation Effects on Microorganisms- Food Preservation- (-1987)
OSTI ID:
5370900
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: PBMIA
Submitting Site:
INIS
Size:
Pages: 291-294
Announcement Date:

Journal Article:

Citation Formats

Umanskij, M S, Borovkova, Yu A, and Odegov, N I. Gamma-irradiation sterilization of lipases for cheese making. USSR: N. p., 1979. Web.
Umanskij, M S, Borovkova, Yu A, & Odegov, N I. Gamma-irradiation sterilization of lipases for cheese making. USSR.
Umanskij, M S, Borovkova, Yu A, and Odegov, N I. 1979. "Gamma-irradiation sterilization of lipases for cheese making." USSR.
@misc{etde_5370900,
title = {Gamma-irradiation sterilization of lipases for cheese making}
author = {Umanskij, M S, Borovkova, Yu A, and Odegov, N I}
abstractNote = {The possibility of sterilizing the enzyme compounds of lipases from Oospora fragrans strains by gamma irradiation was studied. The enzyme compounds were exposed to gamma irradiation at the doses from 0.1 to 0.8 Mrad with the discreteness of 0.1 Mrad and at the dose of 2.0 Mrad. After the radiation treatment the lipases were investigated for bacterial invasion by the cultivation method and for the lipolytic activity by the titrometrical method. It is shown that the sterilization effect is achieved without losses of lipase activity and the radiation dose necessary for sterilization depends on initial invasion levels in the enzyme compounds.}
journal = {Prikl. Biokhim. Mikrobiol.; (USSR)}
volume = {15:2}
journal type = {AC}
place = {USSR}
year = {1979}
month = {Mar}
}