High Pressure Processing in Food Industry – Characteristics and Applications

Mircea-Valentin Muntean , Ovidiu Marian , Victor Barbieru , Giorgiana M. Cătunescu , Ovidiu Ranta , Ioan Drocas , Sorin Terhes
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引用次数: 80

Abstract

The paper aimed to present high pressure processing of food used to process liquid and solid foods with a high content of moisture. When using high pressure processing, microorganisms are destroyed, but covalent bonds do not break and the effect on processed food is minimal. In addition, the positive effect consists of the avoidance of excessive thermal treatments and chemical preservatives. High pressure has a small effect on low-molecular-weight compounds such as flavor compounds, vitamins, and pigments compared to thermal processes. Therefore, the quality of high pressure pasteurized food is very similar to that of fresh food products. The quality of foodstuffs during their shelf life is influenced to a greater extent by subsequent distribution and storage temperatures or by packaging rather than by the pressure treatment itself. Food products can be HPP in a batch system or a semi-continuous process. During HPP, the pressure is applied uniformly and simultaneously in all directions. After HPP the food will not return to its original size and shape due to pressure differences between the compressibility of air and water, unless the food is perfectly elastic. Pressure is instantaneously and uniformly transmitted independent of the size and geometry of food. Resultant pressure regulates most subsequent biochemical reactions occurring in treated products. This article provides an overview of current technology status.

食品工业中的高压加工。特点和应用
本文旨在介绍用于加工高水分液体和固体食品的食品高压加工。当使用高压加工时,微生物被破坏,但共价键不会断裂,对加工食品的影响最小。此外,积极的影响包括避免过度的热处理和化学防腐剂。与热处理相比,高压对低分子量化合物(如风味化合物、维生素和色素)的影响很小。因此,高压巴氏灭菌食品的质量与新鲜食品的质量非常相似。食品在保质期内的质量在很大程度上受随后的分配和储存温度或包装的影响,而不是由压力处理本身。食品可以在间歇系统或半连续过程中进行HPP。HPP过程中,各方向压力均匀且同时施加。在HPP之后,由于空气和水的可压缩性之间的压力差异,食物不会恢复到原来的大小和形状,除非食物具有完全的弹性。压力与食物的大小和几何形状无关,可以瞬间均匀地传递。合成压力调节处理后产物中发生的大多数后续生化反应。本文概述了当前的技术状况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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