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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Main Authors: Nguyen Thi Huong Giang, Mahmud Ab Rashid Nor-Khaizura, Nor Ainy Mahyudin, Thi Lam An Vu
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2022-12-01
Series:Czech Journal of Food Sciences
Subjects:
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.
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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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AT mahmudabrashidnorkhaizura effectsofwashingproceduresinreducinglisteriamonocytogenesonrawleafyvegetables
AT norainymahyudin effectsofwashingproceduresinreducinglisteriamonocytogenesonrawleafyvegetables
AT thilamanvu effectsofwashingproceduresinreducinglisteriamonocytogenesonrawleafyvegetables