脉冲强光技术在食品工业中的应用与展望

Application and research progress of PL technology in the food industry

健康已成为人们生活的主题,口感较佳、色泽优良、货架期稳定且安全健康的食品更受消费者的青睐。热处理可减少原料中的致病菌及腐败菌,但可引起食品中功能性和香气成分含量下降,一些产品在切割、包装等后处理过程中易再次受到污染。脉冲强光(PL)技术可提高产品的质量及减少某些品质损失,并具有高效、安全等优点。文中综述了PL技术、影响因素及在果蔬、即食肉制品、食品包装材料等中的应用,并对其技术的应用前景进行了展望。

Health becomes the important subject in people＇ s lives. Safe, tasted, colorful and stable shelf life are favorite characteristics by consumers. Heating treatment can inhibit pathogenic and spoilage bacteria in raw material. However, it can also made functional foods and aroma components decline; in addition, some post-processing like cutting and packaging can be easily contaminated by bacterial again. Pulsed light technology can improve product quality and reduce the loss of certain quality aspects with the advantages of efficiency and safe. This review focused on pulsed light technology, influencing factors as well as applications on vegetables, ready to eat meat products, food packaging materials. The development trend was also proposed.