Survival of common foodborne pathogens on dried apricots made with and without sulfur dioxide treatment

Liu, Zhuosheng; Liao, Chao; Golson, Kayla; Phillips, Shelley; Wang, Luxin

doi:10.1016/j.foodcont.2020.107569

Cited by 13 publications

(6 citation statements)

References 35 publications

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“…e023028. 2023 Liu et al 32 demonstraram que a presença de dióxido de enxofre livre, adicionado como conservante, altera o crescimento microbiano em alimentos como damasco seco, nos quais, dentre os microrganismos estudados, estão a Escherichia coli e a Salmonella spp., sendo esta última um pouco mais resistente. No estudo de Carter et al 33 sobre o efeito do uso de dióxido de enxofre na sobrevivência de patógenos de origem alimentar em uvas de mesa foi verificada maior resistência ao uso de dióxido de enxofre (SO2) de alguns patógenos, como a E. coli, porém grandes quantidades acabam por inativá-lo completamente.…”

Section: Resultsunclassified

Qualidade microbiológica e quantificação de sulfitos em camarões apreendidos pela Receita Federal por descaminho da Argentina em 2022

Correa,

Machado,

Lima

2023

Segur. Aliment. Nutr.

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Introdução: A 15ª Companhia de Engenharia e Combate Mecanizado do Exército Brasileiro recebeu da Receita Federal um lote de camarões da espécie Farfantepenaeus subtilis, apreendido por descaminho próximo à divisa com a Argentina. Em casos assim, existe a possibilidade de destinar os itens alimentícios aos programas de segurança alimentar e nutricional. No entanto, é crucial que atendam aos requisitos microbiológicos estipulados pela legislação vigente. Além disso, é importante mencionar que é frequente o uso de sulfitos como agente conservante para camarões. Entretanto, o consumo excessivo dele pode resultar em problemas à saúde. Objetivo: Analisar a qualidade microbiológica e a utilização de sulfitos como conservante em camarões do tipo camarão-rosa (Farfantepenaeus subtilis), apreendidos pela Receita Federal por descaminho, próximo à fronteira entre Brasil e Argentina, em 2022. Metodologia: Utilizou-se a técnica NMP para contagem de coliformes totais e termotolerantes e posterior confirmação de Escherichia coli. Contagem de Staphylococcus aureus realizada em ágar Baird-Parker e confirmação por coagulase. Para Salmonella spp. foi realizado plaqueamento em meios seletivos e confirmação em Meio Rugai com Lisina®. Sulfitos foram quantificados pelo kit de sulfitos Merck®. Resultados e discussão: O valor encontrado para coliformes totais foi 1,5.101 NMP/g e para termotolerantes <3,0 NMP/g. A contagem de Escherichia coli, Staphylococcus aureus e Salmonella spp. apresentou-se adequada, contudo, a quantidade de conservantes do tipo sulfitos foi de 123 mg/kg, ou seja, acima do preconizado pela legislação brasileira e Argentina, podendo estar associado à baixa contagem microbiológica, já que tem ação contra tais microrganismos.

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Section: Resultsunclassified

Qualidade microbiológica e quantificação de sulfitos em camarões apreendidos pela Receita Federal por descaminho da Argentina em 2022

Correa,

Machado,

Lima

2023

Segur. Aliment. Nutr.

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“…Nowadays, consumer demands in terms of dried fruits, including apricots, are related to maintaining their rich nutritional value as much as possible and also ensuring high product safety during their shelf life [49]. Generally, dried fruits are considered safe from the aspect of microbial contamination, especially in conditions of low water activity where the potential for food pathogen growth is limited [50]. Raw apricot samples were analyzed, and the following results were obtained: MC 88.94%; a w 0.927; SF 12.3 g; PF 212 g; TPC 327 mg GAE/100 g DW; TFC 471 mg CE/100 g DW; FRAP 2.9 mg Fe 2+ /g DW; DPPH 9.73 mg Trolox/g DW; ABTS 9.01 mg Trolox/g DW.…”

Section: Chemical and Biological Characteristics Of Dried Sour Cherry...mentioning

confidence: 99%

Prototype of an Innovative Vacuum Dryer with an Ejector System: Comparative Drying Analysis with a Vacuum Dryer with a Vacuum Pump on Selected Fruits

Šumić,

Tepić Horecki,

Kašiković

et al. 2023

Foods

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The following article describes new research about the design, construction and installation of the new prototype of a vacuum dryer with an ejector system. Moreover, the testing of this new prototype involved comparing the qualities of fruit dried in a vacuum drier with an ejector system to fruit dried in a convectional vacuum drier. The data obtained were then analyzed and presented. Due to their economic relevance and highly valuable nutritional value and sensory properties, sour cherries and apricots have been chosen to be the subjects for the testing. The most appropriate quality indicators for analyzing were moisture content, aw value, share and penetration force, total phenol, flavonoid and anthocyanin content and antioxidant activity (FRAP, DPPH and ABTS test). The main results of this study were achieved by designing, constructing, installing and testing the usage of the innovative prototype of a vacuum dryer with an ejector system in the laboratory of the Technology of fruit and vegetable products of the Faculty of Technology Novi Sad, University of Novi Sad. Based on our analyses of the obtained data, it was concluded that vacuum dryer with an ejector system are similar to vacuum dryer with a vacuum pump in terms of all tested physical, chemical and biological properties of dried samples. We observed similarities in some of the most important parameters, including product safety and quality, such as the aw value and the total phenol content, respectively. For example, in dried sour cherry, the aw values ranged from 0.250 to 0.521 with the vacuum pump and from 0.232 to 0.417 with the ejector system; the total phenol content ranged from 2322 to 2765 mg GAE/100 g DW with the vacuum pump and from 2327 to 2617 mg GAE/100 g DW with the ejector system. In dried apricot, the aw ranged from 0.176 to 0.405 with the vacuum pump and from 0.166 to 0.313 with the ejector system; total phenol content ranged from 392 to 439 mg GAE/100 g DW with the vacuum pump and from 378 to 428 mg GAE/100 g DW with the ejector system.

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“…[68,69]. In particular, members of the genus Staphylococcus and Salmonella have been found in dried commercial samples of raisins and prunes [70], while E. coli, L. monocytogenes have shown the ability to survive on dried apricots [71]. To this purpose, the evaluation of microbial safety of dried fruits deserves particular attention.…”

Section: Microbial Analysismentioning

confidence: 99%

Effects of Tray-Drying on the Physicochemical, Microbiological, Proximate, and Sensory Properties of White- and Red-Fleshed Loquat (Eriobotrya Japonica Lindl.) Fruit

et al. 2022

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Loquat fruits, highly valued by consumers for their characteristic aroma and pleasant taste, have a short post-harvest life and are susceptible to mechanical damage, loss of firmness, and initial organoleptic characteristics. The aim of this work was to develop a drying method suitable for storing loquat fruits in polyamide/polyethylene (PA/PE) bags containing two gaseous mixtures (treatments): MAPN2 (100% N2) and MAPP (21% O2 and 0.04% CO2), at room temperature (20 ± 1 °C) for at least 2 months. The effects of these conditions on the physico-chemical, microbiological, proximate, and sensory properties of fruit stored over a 50-day time interval were studied. The results showed that convective tray dehydration treatment at 70° for 12 h had good drying efficiency for loquat slices. In addition, the MAPN2 packaging limited the browning of the slices, keeping the microbial groups below the detection limits, with a clear positive effect on some minerals and vitamins, which were higher in concentration compared to the MAPP-packed samples. From an applicative point of view, the tray drying method for loquat fruits is useful on a small scale but could also be easily industrialized.

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Survival of common foodborne pathogens on dried apricots made with and without sulfur dioxide treatment

Cited by 13 publications

References 35 publications

Qualidade microbiológica e quantificação de sulfitos em camarões apreendidos pela Receita Federal por descaminho da Argentina em 2022

Qualidade microbiológica e quantificação de sulfitos em camarões apreendidos pela Receita Federal por descaminho da Argentina em 2022

Prototype of an Innovative Vacuum Dryer with an Ejector System: Comparative Drying Analysis with a Vacuum Dryer with a Vacuum Pump on Selected Fruits

Effects of Tray-Drying on the Physicochemical, Microbiological, Proximate, and Sensory Properties of White- and Red-Fleshed Loquat (Eriobotrya Japonica Lindl.) Fruit

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