J.A. Muñiz-Flores , J.A. Pérez-Montaño , M.A. Pineda-Macias , A. Castillo , O. Rodriguez-García
{"title":"目视检查、ATP和微生物分析在评价牛油果包装厂表面清洁和消毒中的表现。","authors":"J.A. Muñiz-Flores , J.A. Pérez-Montaño , M.A. Pineda-Macias , A. Castillo , O. Rodriguez-García","doi":"10.1016/j.jfp.2025.100593","DOIUrl":null,"url":null,"abstract":"<div><div>Effective cleaning and sanitizing (C&S) of food contact surfaces (FCSs) is critical for minimizing microbial contamination risks in fresh produce environments. This study evaluated the performance of visual inspection, ATP bioluminescence, and microbial analysis as verification tools for C&S procedures in an avocado packing plant, based on surface conditions before and after sanitation. Cleanliness was classified using a four-level visual scale, from 1 (cleanest) to 4 (dirtiest). ATP levels were measured via bioluminescence. Microbial analysis included the quantification of mesophilic aerobic bacteria, <em>Enterobacteriaceae</em>, and yeasts and molds, as well as the qualitative detection of <em>Listeria</em> spp.</div><div>Surface temperatures ranged from 17 °C to 30.9 °C, and relative humidity from 54.3% to 97.0%. Brushes and receiving crates showed the highest visual scores after C&S; however, receiving crates exhibited minimal improvement compared to pre-C&S levels. ATP levels ranged from 2.6 ± 0.7 to 3.8 ± 1.0 log<sub>10</sub> relative light units (RLU)/100 cm<sup>2</sup>, with no significant reductions observed. Microbial counts showed inconsistent decreases, and no surface achieved the expected 3-log reduction. <em>Listeria</em> spp. was detected on 14% and 13% of FCS before and after C&S, respectively. Noncontact surfaces, especially drains, also remained contaminated.</div><div>Notably, the verification tools often produced contradictory results. In some surfaces, visual inspection and microbial indicators suggested effective C&S, while ATP readings showed no significant change. In others, only visual improvements were detected, with no corroborating reduction in ATP or microbial levels. These inconsistencies underscore the limitations of relying on a single method and highlight the importance of using complementary tools in a sequential verification approach. A decision tree (Fig. 4) is proposed to guide the integration of these tools and improve hygiene monitoring strategies in produce packing environments.</div></div>","PeriodicalId":15903,"journal":{"name":"Journal of food protection","volume":"88 10","pages":"Article 100593"},"PeriodicalIF":2.8000,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance of Visual Inspection, ATP, and Microbial Analysis in Evaluating Cleaning and Sanitizing of Surfaces in an Avocado Packing Plant\",\"authors\":\"J.A. Muñiz-Flores , J.A. Pérez-Montaño , M.A. Pineda-Macias , A. Castillo , O. Rodriguez-García\",\"doi\":\"10.1016/j.jfp.2025.100593\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Effective cleaning and sanitizing (C&S) of food contact surfaces (FCSs) is critical for minimizing microbial contamination risks in fresh produce environments. This study evaluated the performance of visual inspection, ATP bioluminescence, and microbial analysis as verification tools for C&S procedures in an avocado packing plant, based on surface conditions before and after sanitation. Cleanliness was classified using a four-level visual scale, from 1 (cleanest) to 4 (dirtiest). ATP levels were measured via bioluminescence. Microbial analysis included the quantification of mesophilic aerobic bacteria, <em>Enterobacteriaceae</em>, and yeasts and molds, as well as the qualitative detection of <em>Listeria</em> spp.</div><div>Surface temperatures ranged from 17 °C to 30.9 °C, and relative humidity from 54.3% to 97.0%. Brushes and receiving crates showed the highest visual scores after C&S; however, receiving crates exhibited minimal improvement compared to pre-C&S levels. ATP levels ranged from 2.6 ± 0.7 to 3.8 ± 1.0 log<sub>10</sub> relative light units (RLU)/100 cm<sup>2</sup>, with no significant reductions observed. Microbial counts showed inconsistent decreases, and no surface achieved the expected 3-log reduction. <em>Listeria</em> spp. was detected on 14% and 13% of FCS before and after C&S, respectively. Noncontact surfaces, especially drains, also remained contaminated.</div><div>Notably, the verification tools often produced contradictory results. In some surfaces, visual inspection and microbial indicators suggested effective C&S, while ATP readings showed no significant change. In others, only visual improvements were detected, with no corroborating reduction in ATP or microbial levels. These inconsistencies underscore the limitations of relying on a single method and highlight the importance of using complementary tools in a sequential verification approach. A decision tree (Fig. 4) is proposed to guide the integration of these tools and improve hygiene monitoring strategies in produce packing environments.</div></div>\",\"PeriodicalId\":15903,\"journal\":{\"name\":\"Journal of food protection\",\"volume\":\"88 10\",\"pages\":\"Article 100593\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-08-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of food protection\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0362028X25001450\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of food protection","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0362028X25001450","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
Performance of Visual Inspection, ATP, and Microbial Analysis in Evaluating Cleaning and Sanitizing of Surfaces in an Avocado Packing Plant
Effective cleaning and sanitizing (C&S) of food contact surfaces (FCSs) is critical for minimizing microbial contamination risks in fresh produce environments. This study evaluated the performance of visual inspection, ATP bioluminescence, and microbial analysis as verification tools for C&S procedures in an avocado packing plant, based on surface conditions before and after sanitation. Cleanliness was classified using a four-level visual scale, from 1 (cleanest) to 4 (dirtiest). ATP levels were measured via bioluminescence. Microbial analysis included the quantification of mesophilic aerobic bacteria, Enterobacteriaceae, and yeasts and molds, as well as the qualitative detection of Listeria spp.
Surface temperatures ranged from 17 °C to 30.9 °C, and relative humidity from 54.3% to 97.0%. Brushes and receiving crates showed the highest visual scores after C&S; however, receiving crates exhibited minimal improvement compared to pre-C&S levels. ATP levels ranged from 2.6 ± 0.7 to 3.8 ± 1.0 log10 relative light units (RLU)/100 cm2, with no significant reductions observed. Microbial counts showed inconsistent decreases, and no surface achieved the expected 3-log reduction. Listeria spp. was detected on 14% and 13% of FCS before and after C&S, respectively. Noncontact surfaces, especially drains, also remained contaminated.
Notably, the verification tools often produced contradictory results. In some surfaces, visual inspection and microbial indicators suggested effective C&S, while ATP readings showed no significant change. In others, only visual improvements were detected, with no corroborating reduction in ATP or microbial levels. These inconsistencies underscore the limitations of relying on a single method and highlight the importance of using complementary tools in a sequential verification approach. A decision tree (Fig. 4) is proposed to guide the integration of these tools and improve hygiene monitoring strategies in produce packing environments.
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.