Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables
The efficacy of potable water and antimicrobial agents, including turmeric extract, black pepper extract, sodium chloride and sodium bicarbonate, in reducing Listeria monocytogenes on the leaf mustard (Brassica integrifolia) and iceberg lettuce (Lactuca sativa L.) was compared. The uncontaminated sa...
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Format: | Article |
Language: | English |
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Czech Academy of Agricultural Sciences
2022-12-01
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Series: | Czech Journal of Food Sciences |
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Online Access: | https://cjfs.agriculturejournals.cz/artkey/cjf-202206-0003_effects-of-washing-procedures-in-reducing-listeria-monocytogenes-on-raw-leafy-vegetables.php |
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author | Nguyen Thi Huong Giang Mahmud Ab Rashid Nor-Khaizura Nor Ainy Mahyudin Thi Lam An Vu |
author_facet | Nguyen Thi Huong Giang Mahmud Ab Rashid Nor-Khaizura Nor Ainy Mahyudin Thi Lam An Vu |
author_sort | Nguyen Thi Huong Giang |
collection | DOAJ |
description | The efficacy of potable water and antimicrobial agents, including turmeric extract, black pepper extract, sodium chloride and sodium bicarbonate, in reducing Listeria monocytogenes on the leaf mustard (Brassica integrifolia) and iceberg lettuce (Lactuca sativa L.) was compared. The uncontaminated samples of two raw leafy vegetables were inoculated with L. monocytogenes at a concentration of 5 log and 7 log colony-forming units (CFU) g-1 for 1 h. At the high L. monocytogenes contamination level, the treatment with black pepper extract 0.6 mg mL-1 for 5 min was found to produce the most considerable decrease in L. monocytogenes counts, resulting in 1.44 log and 1.68 log reduction on leaf mustard and iceberg lettuce, respectively. Similarly, the black pepper extract also showed the highest L. monocytogenes reduction, approximately 0.79 log CFU g-1 on two leafy vegetables at the low contamination level. However, the odour of black pepper extract was left on the vegetables after being washed. |
first_indexed | 2024-04-10T08:31:11Z |
format | Article |
id | doaj.art-0d87cb99103e48ed9d93ea14d4f52730 |
institution | Directory Open Access Journal |
issn | 1212-1800 1805-9317 |
language | English |
last_indexed | 2024-04-10T08:31:11Z |
publishDate | 2022-12-01 |
publisher | Czech Academy of Agricultural Sciences |
record_format | Article |
series | Czech Journal of Food Sciences |
spelling | doaj.art-0d87cb99103e48ed9d93ea14d4f527302023-02-23T03:28:51ZengCzech Academy of Agricultural SciencesCzech Journal of Food Sciences1212-18001805-93172022-12-0140642242610.17221/98/2022-CJFScjf-202206-0003Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetablesNguyen Thi Huong Giang0Mahmud Ab Rashid Nor-Khaizura1Nor Ainy Mahyudin2Thi Lam An Vu3Faculty of Food Science and Technology, Nong Lam University, Ho Chi Minh City, VietnamDepartment of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, MalaysiaDepartment of Food Service and Management, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, MalaysiaDepartment of Food Microbiology, Faculty of Food Science and Technology, Nong Lam University, Ho Chi Minh City, VietnamThe efficacy of potable water and antimicrobial agents, including turmeric extract, black pepper extract, sodium chloride and sodium bicarbonate, in reducing Listeria monocytogenes on the leaf mustard (Brassica integrifolia) and iceberg lettuce (Lactuca sativa L.) was compared. The uncontaminated samples of two raw leafy vegetables were inoculated with L. monocytogenes at a concentration of 5 log and 7 log colony-forming units (CFU) g-1 for 1 h. At the high L. monocytogenes contamination level, the treatment with black pepper extract 0.6 mg mL-1 for 5 min was found to produce the most considerable decrease in L. monocytogenes counts, resulting in 1.44 log and 1.68 log reduction on leaf mustard and iceberg lettuce, respectively. Similarly, the black pepper extract also showed the highest L. monocytogenes reduction, approximately 0.79 log CFU g-1 on two leafy vegetables at the low contamination level. However, the odour of black pepper extract was left on the vegetables after being washed.https://cjfs.agriculturejournals.cz/artkey/cjf-202206-0003_effects-of-washing-procedures-in-reducing-listeria-monocytogenes-on-raw-leafy-vegetables.phpfoodborne pathogenleaf mustardiceberg lettuceblack pepper extractturmeric extract |
spellingShingle | Nguyen Thi Huong Giang Mahmud Ab Rashid Nor-Khaizura Nor Ainy Mahyudin Thi Lam An Vu Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables Czech Journal of Food Sciences foodborne pathogen leaf mustard iceberg lettuce black pepper extract turmeric extract |
title | Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables |
title_full | Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables |
title_fullStr | Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables |
title_full_unstemmed | Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables |
title_short | Effects of washing procedures in reducing Listeria monocytogenes on raw leafy vegetables |
title_sort | effects of washing procedures in reducing listeria monocytogenes on raw leafy vegetables |
topic | foodborne pathogen leaf mustard iceberg lettuce black pepper extract turmeric extract |
url | https://cjfs.agriculturejournals.cz/artkey/cjf-202206-0003_effects-of-washing-procedures-in-reducing-listeria-monocytogenes-on-raw-leafy-vegetables.php |
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