New preservatives and protective systems

A - Human Necessities – 23 – L

Patent

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Details

A23L 3/3517 (2006.01) A23C 19/16 (2006.01) A23L 1/03 (2006.01) A23L 1/05 (2006.01) A23L 1/054 (2006.01) A23L 3/3499 (2006.01) A23L 3/3526 (2006.01) C07C 231/02 (2006.01) C07C 237/22 (2006.01) C07C 277/08 (2006.01) C07C 279/14 (2006.01)

Patent

CA 2480264

This invention relates to compositions comprising cationic preservatives and anionic hydrocolloids, to methods of preparing them and their application in food microbiological protection. Due to their composition, food products are susceptible to act as a culture medium for microorganisms, and this constitutes a possible risk to human health. Thus, food products require good protection against microbiological contamination. The present invention relates to the interaction between cationic preservatives derived from the condensation of fatty acids and esterified dibasic amino acids and anionic hydrocolloids, such as pectins, xanthan gums, carrageenans, acacia gums or agars. The most preferred cationic preservative is the ethyl ester of the lauramide of arginine monohydrochloride (LAE). As a result of this interaction, some anionic hydrocolloids are able to absorb LAE and precipitate together by the enhancement of their lipophilic properties. These new solid compounds can be isolated by filtration and, surprisingly, retain the microbiological inhibitory activity of LAE. The solid compounds contain approximately stoechiometric amounts of LAE and the anionic hydrocolloid. The preferred solid compound is LAE/xanthan gum. The solid compounds are stable and can be stored under normal conditions of temperature and humidity for long periods of time. The invention relates to the method of preserving food products using the new solid compounds and the food products obtained as a result of the application of the method.

L'invention concerne des compositions comprenant des conservateurs cationiques et des hydrocolloïdes anioniques, des procédés permettant de les préparer et leur utilisation dans la protection microbiologique alimentaire. De par leur composition, les produits alimentaires risquent de faire office de milieu de culture pour des micro-organismes, ce qui représente un risque potentiel pour la santé de l'homme. Les produits alimentaires requièrent par conséquent une bonne protection contre la contamination microbiologique. L'invention concerne l'interaction entre des conservateurs dérivés de la condensation d'acides gras et d'acides aminés dibasiques et d'hydrocolloïdes, tels que des pectines, des gommes de xanthane, des carragaheens, des gommes d'acacia et des agars-agars. Le conservateur cationique le plus prisé est l'ester éthylique du lauramide de monohychrochlorure d'arginine (LAE). Il ressort de cette interaction que certains hydrocolloïdes anioniques peuvent absorber les LAE et les précipiter conjointement par amélioration de leurs propriétés lipophiles. Ces nouveaux composés solides peuvent être isolés par filtration et étonnamment, conservent l'activité inhibitrice microbiologique des LAE. Lesdits composés solides contiennent des quantités approximativement stoechiométriques de LAE et l'hydrocolloïde anionique. Le composé solide préféré est LAE/gomme de xanthane. Lesdits composés solides sont stables et peuvent être stockés en dessous de conditions normales de température et d'humidité pour de longues périodes. L'invention concerne en outre un procédé permettant de conserver des produis alimentaires à l'aide de ces nouveaux composés solides et les produits alimentaires obtenus, suite à la mise en oeuvre dudit procédé.

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