Ochratoxin A in Rice Marketed in United Arab Emirates

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dc.contributor.author Abou Ghaida, Alissar
dc.date.accessioned 2022-07-22T10:20:23Z
dc.date.available 2022-07-22T10:20:23Z
dc.date.copyright 2022 en_US
dc.date.issued 2022-05-14
dc.identifier.uri http://hdl.handle.net/10725/13858
dc.description.abstract Rice is one of the most consumed staple foods around the world. A. Circumdati, A. Nigri, P. verrucosum, and P. nordicum can contaminate rice in subtropical and tropical hot and humid climates, which leads to mycotoxins secretion, like the carcinogenic ochratoxin A (OTA). Our study aims to investigate the amounts of OTA in packaged rice sold in United Arab Emirates (UAE) and the exposure to this toxin from rice consumption. A total of 127 packed white, parboiled, and brown rice bags were collected in two rounds, where 89 brands were identified. Out of 89 which, 38 were collected twice, while the remaining 51 brands were found in the market at either the first or second collection, but not both. OTA was measured using Enzyme-linked Immunosorbent Assay (ELISA) technique. OTA was detected in 127 out of 127 (100%) of the rice samples. The average concentration ± standard deviation of OTA was 0.29±0.08 μg/kg. Contamination ranged between 0.02 and 9.58 μg/kg. Moisture content in all rice samples was below the limit (14%). Only 2 samples (1.6%) had an OTA level above the EU limit (5 μg/kg). OTA in brown rice was higher than in white and parboiled rice, yet the difference was not significant. Packing season, packing country, and country of origin, did not have any significant effect. The presence of a food safety management certification resulted in a significant lower OTA level (p=0.04), while a significant difference was found between both collections for the same brands (p=0.001). Exposure to OTA from rice consumption was calculated as 0.2 ng/kg body weight/day. en_US
dc.language.iso en en_US
dc.subject Rice -- Nutrition -- United Arab Emirates en_US
dc.subject Rice -- Analysis en_US
dc.subject Ochratoxins en_US
dc.subject Lebanese American University -- Dissertations en_US
dc.subject Dissertations, Academic en_US
dc.title Ochratoxin A in Rice Marketed in United Arab Emirates en_US
dc.type Thesis en_US
dc.title.subtitle Occurrence and Exposure Level en_US
dc.term.submitted Spring en_US
dc.author.degree MS in Nutrition en_US
dc.author.school SAS en_US
dc.author.idnumber 201604634 en_US
dc.author.commembers N/A
dc.author.department N/A en_US
dc.description.physdesc 1 online resource (xii, 51 leaves): ill. (some col.) en_US
dc.author.advisor Hassan, Hussein
dc.keywords Rice en_US
dc.keywords Ochratoxin A en_US
dc.keywords ELISA en_US
dc.keywords Exposure level en_US
dc.keywords UAE en_US
dc.description.bibliographiccitations Includes bibliographical references (leaf 44-51) en_US
dc.identifier.doi https://doi.org/10.26756/th.2022.384
dc.author.email alissar.aboughaida@lau.edu en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/thesis.php en_US
dc.publisher.institution Lebanese American University en_US
dc.author.affiliation Lebanese American University en_US

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