Design and construction of a continuous industrial scale cold plasma equipment for fresh produce industry

IF 6.3 1区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
N.N. Misra , V.P. Sreelakshmi , Tejas Naladala , Khalid J. Alzahrani , P.S. Negi
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Abstract

This study presents the design, construction, and evaluation of a novel continuous industrial-scale cold plasma system optimized for the treatment of fresh produce. The system integrates multiple plasma modules with a multipin-to-plate discharge configuration, ensuring efficient generation of reactive oxygen and nitrogen species at relatively low voltages. The cold plasma modules are combined with a conveyor mechanism, allowing for continuous, uniform exposure of irregularly shaped food items, such as tomatoes, to reactive plasma species. Notably, the system operates using ambient air, and incorporates modularity for easy scalability, making it suitable for both small-scale enterprises and large-scale industrial applications.
Experimental trials on tomatoes demonstrated reductions in microbial load, with the system effectively enhancing product safety while minimizing power consumption. Moreover, the integration of cold storage further extended shelf life, although optimization of plasma treatment parameters remains necessary to preserve bioactive compounds like lycopene and ascorbic acid. This research fills a critical gap in scaling cold plasma technology for industrial use, providing a sustainable and energy-efficient solution for food disinfection. The results highlight the potential of this system to meet industry demands for safe and efficient on-farm and small-scale enterprise disinfection.
设计和建造用于生鲜农产品行业的连续式工业规模冷等离子体设备
本研究介绍了一种新型连续工业规模冷等离子体系统的设计、建造和评估,该系统经过优化,可用于处理新鲜农产品。该系统集成了多个等离子体模块,采用多针对板放电配置,确保在相对较低的电压下高效生成活性氧和氮。冷等离子体模块与传送装置相结合,可使番茄等形状不规则的食品连续、均匀地暴露在活性等离子体中。值得注意的是,该系统利用环境空气运行,并采用模块化设计,易于扩展,因此既适用于小型企业,也适用于大规模工业应用。对西红柿进行的实验证明,该系统能减少微生物负荷,在有效提高产品安全性的同时最大限度地降低功耗。此外,冷藏的集成进一步延长了保质期,但仍需优化等离子处理参数,以保存番茄红素和抗坏血酸等生物活性化合物。这项研究填补了冷等离子体技术在工业应用方面的关键空白,为食品消毒提供了一种可持续的节能解决方案。研究结果凸显了这一系统的潜力,可满足业界对安全、高效的农场和小型企业消毒的需求。
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来源期刊
CiteScore
12.00
自引率
6.10%
发文量
259
审稿时长
25 days
期刊介绍: Innovative Food Science and Emerging Technologies (IFSET) aims to provide the highest quality original contributions and few, mainly upon invitation, reviews on and highly innovative developments in food science and emerging food process technologies. The significance of the results either for the science community or for industrial R&D groups must be specified. Papers submitted must be of highest scientific quality and only those advancing current scientific knowledge and understanding or with technical relevance will be considered.
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