Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets
Escherichia coli O157:H7 is classified as biological hazard that can produce a bloody diarrhea due to its toxins. While nitrate in vegetables is classified as a chemical hazard if ingested greater than limit and risk getting gastrointestinal cancer and methemoglobinaemia. A study was conducted to ob...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Institute of Medico-Legal Publications
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73835/1/COLI.pdf |
| _version_ | 1825950257743134720 |
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| author | Yusoff, Siti Fairuz Tengku Muda Mohamed, Mahmud Haron, Farah Farhanah |
| author_facet | Yusoff, Siti Fairuz Tengku Muda Mohamed, Mahmud Haron, Farah Farhanah |
| author_sort | Yusoff, Siti Fairuz |
| collection | UPM |
| description | Escherichia coli O157:H7 is classified as biological hazard that can produce a bloody diarrhea due to its toxins. While nitrate in vegetables is classified as a chemical hazard if ingested greater than limit and risk getting gastrointestinal cancer and methemoglobinaemia. A study was conducted to obtain the information on E. coli O157:H7 contamination and nitrate content in Butterhead lettuce from local suppliers. The number of colonies E. coli O157:H7 from the lettuce was enumerated using standard plate count and the nitrate content was measured using nitrate meter. From the experiment, it was found that E. coli O157:H7 contamination of Butterhead lettuce in Malaysia is still within the safe limit for the consumers while the nitrate content was distributed differently between leaf structures; midrib, outer adult leaf blade and young leaves. Lettuce midrib and outer adult leaf blade had a higher concentration of nitrate compared to the young leaves. |
| first_indexed | 2024-03-06T10:11:54Z |
| format | Article |
| id | upm.eprints-73835 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:11:54Z |
| publishDate | 2018 |
| publisher | Institute of Medico-Legal Publications |
| record_format | dspace |
| spelling | upm.eprints-738352021-07-17T23:22:43Z http://psasir.upm.edu.my/id/eprint/73835/ Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets Yusoff, Siti Fairuz Tengku Muda Mohamed, Mahmud Haron, Farah Farhanah Escherichia coli O157:H7 is classified as biological hazard that can produce a bloody diarrhea due to its toxins. While nitrate in vegetables is classified as a chemical hazard if ingested greater than limit and risk getting gastrointestinal cancer and methemoglobinaemia. A study was conducted to obtain the information on E. coli O157:H7 contamination and nitrate content in Butterhead lettuce from local suppliers. The number of colonies E. coli O157:H7 from the lettuce was enumerated using standard plate count and the nitrate content was measured using nitrate meter. From the experiment, it was found that E. coli O157:H7 contamination of Butterhead lettuce in Malaysia is still within the safe limit for the consumers while the nitrate content was distributed differently between leaf structures; midrib, outer adult leaf blade and young leaves. Lettuce midrib and outer adult leaf blade had a higher concentration of nitrate compared to the young leaves. Institute of Medico-Legal Publications 2018-11 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73835/1/COLI.pdf Yusoff, Siti Fairuz and Tengku Muda Mohamed, Mahmud and Haron, Farah Farhanah (2018) Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets. Indian Journal of Public Health Research and Development, 9 (11). 1460 - 1466. ISSN 0976-0245; ESSN: 0976-5506 http://www.ijphrd.com/issues.html 10.5958/0976-5506.2018.01656.X |
| spellingShingle | Yusoff, Siti Fairuz Tengku Muda Mohamed, Mahmud Haron, Farah Farhanah Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title | Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title_full | Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title_fullStr | Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title_full_unstemmed | Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title_short | Screening of Escherichia coli O157:H7 contamination and nitrate content on Butterhead lettuce from market outlets |
| title_sort | screening of escherichia coli o157 h7 contamination and nitrate content on butterhead lettuce from market outlets |
| url | http://psasir.upm.edu.my/id/eprint/73835/1/COLI.pdf |
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