Microbial contamination of fruit and vegetables and their disinfection.
نویسندگان
چکیده
We evaluated the microbial contamination of 17 types of vegetable and 10 types of fruit after 30-s washing with tap water with and without subsequent disinfection by 10-min immersion in 0.01% (100 ppm) sodium hypochlorite. The mean microbial contamination level of 9 types of leafy vegetable was 2.8 x 10(5) colony-forming units (CFU)/g after washing with water and 3.4 x 10(4) CFU/g after washing followed by disinfection. The mean microbial contamination level of 8 types of nonleafy vegetable was 3.4 x 10(4) CFU/g after washing with water and 1.0 x 10(4) CFU/g after washing followed by disinfection. The mean microbial contamination level of 10 types of unpeeled fleshy fruit was 9.3 x 10(3) CFU/g after washing with water and 1.3 x 10(3) CFU/g after washing followed by disinfection. The contaminants in vegetables and unpeeled fruit were similar after washing and after washing followed by disinfection, including Pseudomonas fluorescens and Pseudomonas aeruginosa. The contamination did not markedly decrease even after disinfection with sodium hypochlorite. However, the flesh of each type of peeled fruit showed no or only low levels of contamination (<or=10 CFU/g), probably caused by the transfer of microorganisms from the skin of fruit via fruit knives.
منابع مشابه
بررسی آلودگی میکروبی در سالاد وسبزیجات عرضهشده در رستورانها و فستفودهای سطح شهر بیرجند، در سال 1394
Background and Aim: Given the ever-increasing population in the world, people's need for fruits and vegetables is increasing day by day. Fruit and vegetable are an important part of human diet. So, this study was conducted to determine the level of microbial contamination in the salads and vegetables supplied in restaurants and fast food in Birjand. Materials and Methods: In this descriptive s...
متن کاملMicrobial Contamination of Leafy Vegetables in Porto-Novo, Republic of Benin
Background: The vegetables provide important nutrients to human beings. Nevertheless, contaminated vegetables can cause health problems because of their microbial load. The aim of this study was to assess the microbial quality of three main leafy vegetables cultivated and consumed at Porto-Novo in Republic of Benin. Methods: Totally, 36 samples of amaranth, nightshade, and lettuce were taken f...
متن کاملComparison of the Effect of Perchlorine, Sodium Hypochlorite, and Electrochemical Method on Disinfection of Vegetables
Introduction: Many vegetables are eaten raw which can lead to the prevalence of food borne diseases if not properly sanitized. The aim of this study was to compare the effect of chlorine, bleach and multioxidant solution in disinfection of edible vegetables. Materials and Methods: In this experimental study, 100 g of vegetables (lettuce, basil and mint) was disinfected by sodium hypochlorite, ...
متن کاملMicrobial Contamination of Raw Vegetables in Ahvaz, Iran during 2014-2015
Background & Aims of the Study: Vegetables are useful for humans as they contain minerals, vitamins, fiber and other nutrients. Eating raw vegetables are a nutritional habit in Iranian families. Raw eating vegetables is the main source of parasitic infections. The aim of this study was to determine microbial contamination of raw vegetables in Ahvaz, Iran during 2014-2015. ...
متن کاملMicrobial Contamination of Fresh Vegetable and Salad Samples Consumed in Tehran, Iran
Background: The criteria for the quality control of Iranian fresh produce are the total microbial count, Enterococcal count and the detection of Escherichia coli. The aim of this study was to assess microbial contamination of fresh vegetable and salad samples consumed in Tehran, Iran. Methods: From May to October 2013, freshly vegetable (n=100) and salads (n=100) samples were randomly co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Biological & pharmaceutical bulletin
دوره 31 10 شماره
صفحات -
تاریخ انتشار 2008