Pulsed light: Innovative non-thermal technology for preservation of fruits and vegetables

Food Physics Pub Date : 2024-08-09 DOI:10.1016/j.foodp.2024.100022

Roji Waghmare , Manoj Kumar , Baohong Zhang , Rahul Yadav , Ajinath Dukare , Radha , Deepak Chandran , Pratik Nayi , Muzaffar Hasan , Sangram Dhumal , Trupti Dharmarao , Tanu Malik , Ruprekha Sarma , Saurjaynee Biswas , Jose M. Lorenzo

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Abstract

Pulsed light (PL), a relatively new non-thermal technology can be used as a possible substitute to the conventional (thermal and chemical) technology for disinfecting a wide variety of fruits and vegetables. The short-duration light pulses, ranging from 1 to 20 flashes per second with an energy density of about 0.01–50 Jcm⁻², ensure the killing of several disease-causing microorganisms by causing minimal impact on the quality parameters in fruits and vegetables. This technology enhances safety and extends shelf-life period of fruits and vegetables. Furthermore, PL decreases or inhibits the harmful effect of conventional techniques on nutritional components. The review discusses recent research on PL's influence on nutritional and physicochemical parameters and its potential applications for extending the shelf life of fruits and vegetables. This PL technology can be successfully employed alone or in combination with other techniques for enhancing fresh produce life. PL is considered a safe, eco-friendly and non-thermal technique for shelf-life extension. For this review article, keywords such as pulsed light, fruits and vegetables, microbial safety and shelf life were selected and most relevant papers were cited. Thus, the present review article, supported by 70 references, highlights the novel potential of PL treatment and its diverse applications in the fruit and vegetable sector.

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脉冲光：用于水果和蔬菜保鲜的创新型非热技术

脉冲光（PL）是一种相对较新的非热能技术，可以替代传统的（热能和化学）技术对各种水果和蔬菜进行消毒。光脉冲持续时间短，每秒闪烁 1-20 次，能量密度约为 0.01-50 Jcm-2，可确保杀死多种致病微生物，对水果和蔬菜的质量参数影响极小。这项技术提高了水果和蔬菜的安全性，延长了货架期。此外，聚乳酸还能减少或抑制传统技术对营养成分的有害影响。本综述讨论了有关聚乳酸对营养和理化参数影响的最新研究及其在延长水果和蔬菜货架期方面的潜在应用。这种聚乳酸技术可以单独使用，也可以与其他技术结合使用，成功地延长新鲜农产品的保质期。聚乳酸被认为是一种安全、环保和非热的货架期延长技术。本综述文章选择了脉冲光、水果和蔬菜、微生物安全和货架期等关键词，并引用了大多数相关论文。因此，本综述文章在 70 篇参考文献的支持下，强调了脉冲光处理的新潜力及其在水果和蔬菜领域的多种应用。

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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Food Physics

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