Analysis of Microbial Contamination of Sprouts and Fresh-cut Salads in a Market

Kang, Tae Mi; Cho, Sung Kyung; Park, Ji Yong; Song, Kyung Bin; Chung, Myung Soo; Park, Jong Hyun

doi:10.9721/kjfst.2011.43.4.490

Cited by 28 publications

(3 citation statements)

References 11 publications

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“…The other pathogens most frequently isolated from sprouted seeds were Pseudomonas aeruginosa, Staphylococcus aureus, and Bacillus cereus [Kang et al, 2011;NACMCF, 1999;Viswanathan & Kaur, 2001]. Contaminated seeds have been recognized to be the main source of pathogenic bacteria introduced into sprouts [Miyahira & Antunes, 2021;NACMCF, 1999;Sikin et al, 2013].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Effect of Sea Buckthorn (<i>Hippophae rhamnoides</i> L.) Fruit Extract on Radish Seeds Prior to Sprouting

Rajkowska,

Rykała,

Czyżowska

2024

Pol. J. Food Nutr. Sci.

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Sprouts consumption is increasing worldwide due to their nutritional and health benefits. However, they can be sources of foodborne bacterial diseases, including sprout-related outbreaks caused primarily by Shiga toxin-producing Escherichia coli and Salmonella spp. The aim of this study was to determine the efficacy of a dried sea buckthorn fruit extract in sanitization of contaminated radish seeds. The efficacy of 15-min seed treatment and 3-h soaking in the extract solution was evaluated in comparison to the treatment with 20,000 mg/L calcium hypochlorite, recommended by the U.S. Food and Drug Administration. The effect of the sea buckthorn fruit extract on radish seed germination capacity and the profile of phenolic compounds in the extract were also determined. Decontamination effect of the extract after a 15-min seed treatment ranged from 72.1% against Staphylococcus aureus to 93.0% against Listeria monocytogenes and was higher than that of active chlorine against E. coli, S. aureus and Salmonella enterica. Soaking seeds for 3 h in the extract increased the decontamination efficiency only against S. aureus (81.9%). Compared to water, after 4 days of sprouting, no significant differences were found in radish seed germination capacity and the length of roots and hypocotyls of sprouts. The sea buckthorn fruit extract had a high content of phenolic compounds, namely isorhamnetin 3-rhamnosylglucoside (12.99 mg/L), isorhamnetin 3-rutinoside (8.25 mg/L), protocatechuic acid (5.43 mg/L), isorhamnetin 3-glucoside (3.41 mg/L), and gallic acid (3.36 mg/L). The extract can be used as a substance limiting bacterial contamination of radish seeds and, as a result, sprouts, as well as a valuable source of phenolic compounds.

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Section: Introductionmentioning

confidence: 99%

Antibacterial Effect of Sea Buckthorn (<i>Hippophae rhamnoides</i> L.) Fruit Extract on Radish Seeds Prior to Sprouting

Rajkowska,

Rykała,

Czyżowska

2024

Pol. J. Food Nutr. Sci.

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“…채소류는 토양에서 생산되기 때문에 자연적으로 토양에 존재하는 다양한 미생물에 노출되어 있다 . 외국의 농산물 식중독 사고에서 알 수 있듯이 과일 및 채소와 같은 신선 농산물은 수확 후 소비되는 과정의 여러 단계에서 병원성 미생물을 포함한 다양한 미생물에 오염될 수 있다 (Kang et al, 2011). 가공처리를 통해 초기 병 원성 미생물을 일부 제거하더라도 저장•유통 중 적당한 온도와 습도 조건에서 병원성 미생물이 증식하여 식중독을 유 발할 수 있다 (NACMCF, 1999).…”

Section: Introductionunclassified

Evaluation on Microbial Contamination in Chinese Cabbage Cultivated Soil in Korea

Jung¹,

Seo²,

Jeon³

et al. 2017

Korean J. Soil. Sci. Fert.

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The occurrence of various pathogenic microorganisms on farms is a concern if they are able to contaminate fresh produce, which provides entry into the food supply. This study was undertaken to assess the microbiological quality and prevalence of pathogens in Chinese cabbage cultivated soil in Korea. A total of 57 Chinese cabbage cultivated soils were collected in 4 locations in Korea from February to August 2017. The soils were analyzed for the presence of total aerobic bacteria, Escherichia coli, coliforms, Salmonella spp., Escherichia coli O157:H7, Listeria monocytogenes, and Staphylococcus aureus. The total aerobic plate counts in soils were in the range of 5.7 to 8.7 log CFU g -1 . The coliforms and E. coli were detected in 39 and 8 out of 57 soil samples, respectively, in the range of 1.1 to 6.3 log CFU g -1 and 0.7 to 4.0 log CFU g -1 . Salmonella spp., E. coli O157:H7, L. monocytogenes, and S. aureus were not detected from any samples. Results from these studies may help control the spread of bacterial species such as E. coli and Salmonella spp. through the farm environment.

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“…식품의약품안전처의 통계에 의하면 B. cereus에 의한 식중독 은, 2003부터 2012년간 52건 1400여명 환자가 발생하였고 (3). 다 른 식품군에 비해 시중에 유통판매 중인 즉석섭취•편의식품류 에 속하는 선식 및 새싹 채소 등에서 상대적으로 많이 분리되고 있다 (7,12). 그러나 B. cereus에 의한 식중독은 균수가 일정수준이 상 되어야 발병한다고 보고되고 있지만 (9), B. cereus가 산생하는 독소의 종류에 따라 잠복기 및 임상증상이 다양하기 때문에 원 인 병원체 및 독소의 정확한 진단이 중요하다 (5,8,10,11 Preserved foods for the investigation of food poisoning outbreak Preserved foods for the investigation of food poisoning outbreak hblACD: hblA, C and/or D Fig.…”

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Molecular Characterization and Toxin Profile of Bacillus cereus Strains Isolated from Ready-to-eat Foods

김태순¹,

김민지²,

강유미³

et al. 2014

Korean Journal of Food Science and Technology

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Toxin-producing Bacillus cereus is the causative agent of two different types of food poisoning: the emetic and the diarrheal types. This study was conducted to investigate the presence of enterotoxin and emetic toxin genes in 263 B. cereus isolated from 619 different ready-to-eat food items. Hemolytic enterotoxins hblA, hblC, and hblD were detected in 85.6, 41.1, and 76.8%, respectively, of the B. cereus isolates. About 67.0% (175/263) of the isolates presented all of three genes. Non-hemolytic enterotoxins nheA, nheB, and nheC were detected in 100, 97.0, and 68.4% of the isolates, respectively. Approximately 90.0% (236/263) of the isolates presented all of these three non-hemolytic enterotoxin genes. Emetic toxin gene, CER, was detected in 132 of 263 (50.2%) isolates. Computer-assisted cluster analysis of Rep-PCR profiles showed a high genetic diversity among the isolates. All B. cereus isolates from food samples tested in this study carried at least 6 of 10 toxin genes.

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Analysis of Microbial Contamination of Sprouts and Fresh-cut Salads in a Market

Cited by 28 publications

References 11 publications

Antibacterial Effect of Sea Buckthorn (<i>Hippophae rhamnoides</i> L.) Fruit Extract on Radish Seeds Prior to Sprouting

Antibacterial Effect of Sea Buckthorn (<i>Hippophae rhamnoides</i> L.) Fruit Extract on Radish Seeds Prior to Sprouting

Evaluation on Microbial Contamination in Chinese Cabbage Cultivated Soil in Korea

Molecular Characterization and Toxin Profile of Bacillus cereus Strains Isolated from Ready-to-eat Foods

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