alexa Biological preservation of foods with reference to protective cultures, bacteriocins and food-grade enzymes.
Food & Nutrition

Food & Nutrition

Advances in Dairy Research

Author(s): Holzapfel WH, Geisen R, Schillinger U

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Abstract A review is presented on the present status of biological preservation of foods. Recent developments are discussed with respect to underlying mechanisms of inhibition by 'protective' cultures, and special reference is made to lactic acid bacteria (LAB) and their 'food-grade' safety. The role of bacteriocins, their limitations and potentiating role in biological systems, is also addressed. The use of enzymes (e.g. lysozyme) for food preservation is mainly restricted by economic factors, their inactivation by endogenous food components and their limited activity spectrum. Practical applications of protective cultures refer to particular food commodities that either constitute novel systems with respect to packaging and/or composition, or represent special hygienic risks. It is concluded that biological preservation cannot substitute GMP; it, however, offers an additional (and acceptable) processing parameter for improving the safety and assuring the quality of a given food.
This article was published in Int J Food Microbiol and referenced in Advances in Dairy Research

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