Evaluation of Cold Plasma–Activated water “…Enriched Metal…” Cations as an Antifungal Agent for Controlling of Penicillium italicum and Penicillium digitatum Molds

IF 2.1 4区农林科学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of food protection Pub Date : 2024-06-07 DOI:10.1016/j.jfp.2024.100310

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引用次数: 0

Abstract

The utilization of Cold Plasma (CP) technology for decontamination and disinfection has garnered considerable attention across diverse industries. This study aims to investigate the interaction between pH and electrical conductivity (EC) (μS/cm) in Cold Plasma-Activated Water (CPAW) enriched with metal cations and its potential as an antifungal agent against two Penicillium (P.) mold strains. The investigation focuses on elucidating the augmented chemical interactions induced by plasma between radicals, charged particles, and microorganisms' cell membranes within an aqueous environment. Our findings demonstrate a positive correlation between the inactivation potential of CPAW (operating at 10 kV voltage, 2.5 kHz high frequency, and 500 mA current intensity) and pH and EC(μS/cm) values. Notably, the relative chemical reactivity and solubility of calcium oxide emerge as significant factors, highlighting the pronounced link between P. Italicum and Plasma-Activated Water containing Copper cations (CPAW + Cu²⁺) (p < 0.05). Our study distinctly emphasizes (1) the substantial impact of both activated water type and mold species on CFU/mL values (p < 0.05); (2) the mold-specific effect of activated water on CFU/mL; and (3) the noteworthy EC(μS/cm) enhancement and pH decrease with prolonged activation time, attaining statistical significance (p < 0.01).

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评估冷等离子活化水"......富含金属......"阳离子作为一种抗真菌剂用于控制意大利青霉和地衣青霉。

利用冷等离子体（CP）技术进行去污和消毒已在各行各业引起了广泛关注。本研究旨在调查富含金属阳离子的冷等离子活化水（CPAW）中 pH 值和导电率（EC）（μS/cm）之间的相互作用，以及其作为抗真菌剂对两种青霉菌株的作用潜力。这项研究的重点是阐明等离子体在水环境中诱导自由基、带电粒子和微生物细胞膜之间增强的化学相互作用。我们的研究结果表明，CPAW（工作电压为 10 kV，高频率为 2.5 kHz，电流强度为 500 mA）的灭活电位与 pH 值和 EC(μS/cm) 值之间存在正相关。值得注意的是，氧化钙的相对化学反应性和溶解性是重要因素，这突出了伊塔金丝楠木和含铜阳离子的等离子活化水（CPAW+Cu+2）之间的明显联系（p＜0.05）。

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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来源期刊

Journal of food protection 工程技术-生物工程与应用微生物

CiteScore

4.20

自引率

5.00%

发文量

296

审稿时长

2.5 months

期刊介绍： The Journal of Food Protection® (JFP) is an international, monthly scientific journal in the English language published by the International Association for Food Protection (IAFP). JFP publishes research and review articles on all aspects of food protection and safety. Major emphases of JFP are placed on studies dealing with: Tracking, detecting (including traditional, molecular, and real-time), inactivating, and controlling food-related hazards, including microorganisms (including antibiotic resistance), microbial (mycotoxins, seafood toxins) and non-microbial toxins (heavy metals, pesticides, veterinary drug residues, migrants from food packaging, and processing contaminants), allergens and pests (insects, rodents) in human food, pet food and animal feed throughout the food chain; Microbiological food quality and traditional/novel methods to assay microbiological food quality; Prevention of food-related hazards and food spoilage through food preservatives and thermal/non-thermal processes, including process validation; Food fermentations and food-related probiotics; Safe food handling practices during pre-harvest, harvest, post-harvest, distribution and consumption, including food safety education for retailers, foodservice, and consumers; Risk assessments for food-related hazards; Economic impact of food-related hazards, foodborne illness, food loss, food spoilage, and adulterated foods; Food fraud, food authentication, food defense, and foodborne disease outbreak investigations.