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Microbiological quality of kitchens sponges used in university student dormitories.

ABSTRACT: BACKGROUND:Kitchen sponges are a major source of cross-contamination as they can transfer foodborne pathogens, infectious agents and spoilage causing microorganisms to food contact surfaces. Several studies have revealed that university students adopt poor practices regarding food safety, hygiene, and the handling of kitchen cleaning equipment. METHODS:A total of fifty kitchen sponges were collected along with a questionnaire addressing social demographics and kitchen sponge usage by students living at the University of Sharjah dormitories. The effect of storage (3 and 10?days) on the microbial population of kitchen sponges at room temperature (21?°C) was assessed. Enterobacteriaceae isolated from sponges were identified and their antibiotic resistance determined. RESULTS:Student responses revealed that kitchen sponges used to clean food contact surfaces were also used to clean the oven (32%), sink (26%), refrigerator (10%), and to clean spills on the floor (4%). Kitchen sponges contained high counts of mesophilic aerobic bacteria (7.9 log10/cm3), coliform (7.2 log10/cm3), Enterobacteriaceae (7.3 log10/cm3) and yeasts and molds (7.0 log10/cm3). After storage of the sponges at room temperature (21?°C) for 3 and 10?days, the number of mesophilic aerobic bacteria, coliform, Enterobacteriaceae and yeasts and molds decreased by 0.4 and 1.3 log10/cm3, 0.7 and 1.4 log10/cm3, 0.4 and 1.1 log10/cm3, and 0.6 and 1.3 log10/cm3, respectively. The most frequently isolated Enterobacteriaceae were Enterobacter cloacae (56%) and Klebsiella oxytoca (16%). All E. cloacae isolates were resistant to amoxicillin, cefalotin, cefoxitin and cefuroxime axetil. CONCLUSIONS:This study showed that students living in dormitories lacked good hygienic practices and were at increased risk of food poisoning. Kitchen sponges were highly contaminated with potentially pathogenic bacteria which could be transferred from the general kitchen environment to food contact surfaces and consequently lead to food contamination.

SUBMITTER: Osaili TM

PROVIDER: S-EPMC7460773 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Microbiological quality of kitchens sponges used in university student dormitories.

Osaili Tareq M TM Obaid Reyad S RS Alowais Klaithem K Almahmood Rawan R Almansoori Moza M Alayadhi Noora N Alowais Najla N Waheed Klaithem K Dhanasekaran Dinesh Kumar DK Al-Nabulsi Anas A AA Ayyash Mutamed M Forsythe Stephen J SJ

BMC public health 20200831 1

<h4>Background</h4>Kitchen sponges are a major source of cross-contamination as they can transfer foodborne pathogens, infectious agents and spoilage causing microorganisms to food contact surfaces. Several studies have revealed that university students adopt poor practices regarding food safety, hygiene, and the handling of kitchen cleaning equipment.<h4>Methods</h4>A total of fifty kitchen sponges were collected along with a questionnaire addressing social demographics and kitchen sponge usage ...[more]

PMID: 32867725

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Project description:IntroductionThe majority of large public universities have exclusive pouring rights contracts with beverage companies that produce and market sugar-sweetened beverages. Pouring rights contracts contain provisions that conflict with recommendations from major public health organizations that institutions reduce sugar-sweetened beverage availability, marketing, and consumption. This study assessed the following among students at 3 public universities: student perception of pouring rights contracts (the extent to which they favored or opposed pouring rights contracts), the association between student socioeconomic characteristics and perception of pouring rights contracts, student estimates of pouring rights contract revenue, and the association between student pouring rights contract revenue estimates and perception of pouring rights contracts. To contextualize results, actual pouring rights contract revenue as a percentage of total revenues was estimated.MethodsA cross-sectional exploratory study was conducted among a convenience sample of 1,311 undergraduate sugar-sweetened beverages-consuming students recruited from 3 large and diverse public universities in Northern California. On an online questionnaire, undergraduate students indicated the extent to which they favored or opposed pouring rights contracts on a 10-point scale (oppose=1-5, favor=6-10) and provided a numeric estimate of the percentage of total university revenue they thought their university's pouring rights contract generated. Regression models were used to analyze differences in perception of pouring rights contracts by student socioeconomic characteristics and estimates of university revenues generated by pouring rights contracts. In addition, pouring rights contracts and financial reports were obtained from the 3 universities to estimate actual pouring rights contract revenue as a percentage of total revenues. Survey data were collected between August and November 2018 and analyzed in August 2022.ResultsA large majority of students (81%) opposed pouring rights contracts, and the opposition did not significantly differ by student socioeconomic characteristics, including by levels of food security, need-based financial aid, participation in federal food assistance or healthcare programs, parental education, or parental income (all ps>0.14). The median student estimate for pouring rights contract revenue as a percentage of total university revenue was 10%. In contrast, the estimated actual annual revenue generated from the pouring rights contracts ranged from 0.01% to 0.04% at these schools. Revenue estimates were not significantly associated with participants' opposition or favoring of pouring rights contracts (p=0.65).ConclusionsA large majority of students opposed pouring rights contracts, and this opposition was similar regardless of student socioeconomic characteristics or student estimates of pouring rights contract revenues. Students markedly overestimated (by >100-1,000-fold) the percentage of university revenue that came from pouring rights contracts. University administration should consider student views on pouring rights contracts when deciding whether to exit or continue with pouring rights contracts.

Dataset Information

Microbiological quality of kitchens sponges used in university student dormitories.

Publications

Microbiological quality of kitchens sponges used in university student dormitories.

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