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Article
Publication date: 6 February 2017

Se-Young Ju, Jin-Ju Ko, Hee-Sun Yoon, Su-Jin Seon, Yu-Ri Yoon, Da-In Lee, So-Yeon Kim and Hye-Ja Chang

The purpose of this paper is to examine the efficacy of microbial elimination using different sanitizers in raw vegetables (cherry tomatoes, spring onions, Chinese chives, and…

Abstract

Purpose

The purpose of this paper is to examine the efficacy of microbial elimination using different sanitizers in raw vegetables (cherry tomatoes, spring onions, Chinese chives, and chicory) and to analyze the efficacy of Escherichia coli O157:H7 reduction by type of sanitizer and vegetable.

Design/methodology/approach

To assess the sanitizing effects of microbial elimination by variety of vegetable, the samples were grouped into four different washing methods: control (no sanitizer), 100 ppm chlorine, 100 ppm electrolyzed water, and 200 ppm electrolyzed water after prewashing. Subsequently, quantitative microbiological experiments were conducted to assess aerobic mesophilic plate count (APC), coliform, E. coli, and Bacillus cereus, and sensory changes of the sanitized vegetables were tested. Thereafter, measurement of the sanitizing effects on bacterial reduction after inoculation with E. coli O157:H7 was conducted.

Findings

The microbial levels of four types of vegetables ranged from 3.37 to 5.24 log CFU/g for APC, 2.41 to 5.57 log CFU/g for E. coli, 0.25 to 5.40 log CFU/g for coliform, and 0.83 to 5.44 log CFU/g for B. cereus. After three types of sanitizing treatments, microbial reduction effects showed 0.94-1.84 log CFU/g for APC, 0.56-1.00 log CFU/g for E. coli, 0.18-1.26 log CFU/g for coliform, and 0.56-1.23 log CFU/g for B. cereus (p<0.05). In sensory evaluation, there were no significant differences in taste and flavor between with and without sanitizing treatments. Regarding bacterial reduction after inoculation with E. coli O157:H7, the microbial reduction on vegetables was shown to be in the range of 0.27-1.57 log CFU/g with 100 ppm sodium hypochlorite, 0.66-3.07 log CFU/g with 100 ppm electrolyzed water, and 0.79-2.55 log CFU/g with 200 ppm electrolyzed water. Chicory, cherry tomato, and spring onion showed significant reduction levels of E. coli O157:H7 after sanitation (p<0.05).

Originality/value

This study revealed that different sanitization methods are required for different types of vegetables. Electrolyzed water treatment (100 ppm) is a more effective and safe method of washing raw vegetables. Given that the main purpose of sanitizing fresh-cut produce is to maximally reduce microorganism levels, different methods of sanitizing fresh-cut produce with an adequate washing method should be used according to vegetable type.

Details

British Food Journal, vol. 119 no. 2
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 1 June 2004

Ki‐Han Chung and Jae‐Ik Shin

The tourism industry is experiencing a tremendous growth with an everincreasing pressure from a variety of types of competition. The change of tourism market in Asia and the…

2062

Abstract

The tourism industry is experiencing a tremendous growth with an everincreasing pressure from a variety of types of competition. The change of tourism market in Asia and the ever‐increasing competitive nature of the tourism industry require tourist destinations to develop an effective marketing plan and strategy. This article identifies the relationship between destination cues of Asian countries and Korean tourist images of destinations, the differences of Korean tourist images on revisiting and recommend intention for destinations, and the differences of demographic factors on destination cues and Korean tourist images and revisiting/recommend intention for destinations.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 16 no. 2
Type: Research Article
ISSN: 1355-5855

Keywords

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