The occurrence of ochratoxin A in white and parboiled rice

Toman, Jakub; Malíř, František; Ostrý, Vladimír; Grosse, Yann; Dvořák, Vladimír; Roubal, Tomáš; Neuchlová, Lucie

doi:10.17221/316/2015-cjfs

Cited by 8 publications

(6 citation statements)

References 40 publications

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“…The determination of OTA in rice was carried out using the enzyme-linked immunosorbent assay (ELISA) technique. This technique has been used to determine the OTA in cereals in a plethora of studies, for example, in Iran [ 21 ], the Czech Republic [ 22 ], Turkey [ 23 , 24 ], and Tunisia [ 25 ]. For this, the RIDASCREEN OTA 30/15R1312 test kit (R-biopharm, Darmstadt, Germany) was used.…”

Section: Methodsmentioning

confidence: 99%

Exposure to Ochratoxin A from Rice Consumption in Lebanon and United Arab Emirates: A Comparative Study

Hassan

Ghaida

Charara

et al. 2022

IJERPH

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Our study aims to evaluate the ochratoxin A (OTA) in rice marketed in Lebanon and the United Arab Emirates (UAE), and to determine the exposure to OTA from rice consumption. All brands available in the market were collected twice (total number of collected samples: 105 and 127 in Lebanon and the UAE, respectively). Using ELISA, the OTA in 56 (53%) samples in Lebanon and 73 (58%) samples in the UAE were above the limit of quantification (0.8 μg/kg). The average concentrations of the positive samples ± standard deviations were 1.29 ± 0.32 and 1.40 ± 0.42 μg/kg in Lebanon and the UAE, respectively. Only one sample (1%) in Lebanon had a level at the borderline of the European Union (EU) limit, and two samples (1.6%) in the UAE had a level above the EU limit (5 μg/kg). The OTA in brown rice was higher than in white and parboiled rice for both countries, yet the difference was not significant. The packing season, packing country, and country of origin did not have any significant effects. The presence of a food safety certification resulted in lower OTA in the rice, but the difference was significant (p = 0.04) in the UAE only. Long grains had higher OTA than short grains, yet the difference was only significant in Lebanon (p = 0.046). The exposures were calculated as 1.27 ng/kg body weight/day in Lebanon and 1.42 ng/kg body weight/day in the UAE, and no health risk was observed for both the neoplastic and non-neoplastic effects.

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Section: Methodsmentioning

confidence: 99%

Exposure to Ochratoxin A from Rice Consumption in Lebanon and United Arab Emirates: A Comparative Study

Hassan

Ghaida

Charara

et al. 2022

IJERPH

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“…Several authors have reported that the most common mycotoxins in rice are total aflatoxins, aflatoxin B1, ochratoxin A, and beauvericin [94,95].…”

Section: Mycotoxins In Ricementioning

confidence: 99%

Implications of Mycotoxins in Food Safety

Alina¹

2022

Mycotoxins and Food Safety - Recent Advances

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The chapter aims to address an overview of the implications of mycotoxins in food safety and the presence of mycotoxins in various foods. Nowadays, everyone wants safe food with a long shelf life. Food safety has become a major strategic issue worldwide and has attracted worldwide attention. Mycotoxins are widely found in food and feed, and dietary exposure to them can induce various types of adverse health effects in humans and animals. Contamination of food by fungi and mycotoxins results in loss of dry matter, quality and nutrition, and poses a significant danger to the food chain. Moreover, mycotoxin contamination decreases product quality and reduces export values, which can lead to significant economic losses for producing countries. Mycotoxin contamination directly reduces food availability and has its own contribution to hunger and malnutrition, and the consumption of food contaminated with mycotoxins has major repercussions on human health.

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“…Ochratoxin A (OTA), a mycotoxin produced from species of fungi including Penicillium verrucosum, Aspergillus ochraceus, Aspergillus carbonarius and Aspergillus niger [ 1 , 2 ], could be easily found in many improperly stored food and agricultural products [ 3 ] such as coffee [ 4 ], beer [ 5 ] and wine [ 6 , 7 ]. Due to its chemical stability during food and feed processing, OTA may reside in foodstuff, spices and animal feed [ 8 , 9 , 10 , 11 ]. In addition, OTA is a nephrotoxic toxin [ 12 ] with strong carcinogenic effects on rodents [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Lateral Flow Strip Based Aptasensor for Detection of Ochratoxin A in Corn Samples

et al. 2018

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Ochratoxin A (OTA) is a mycotoxin identified as a contaminant in grains and wine throughout the world, and convenient, rapid and sensitive detection methods for OTA have been a long-felt need for food safety monitoring. Herein, we presented a new competitive format based lateral flow strip fluorescent aptasensor for one-step determination of OTA in corn samples. Briefly, biotin-cDNA was immobilized on the surface of a nitrocellulose filter on the test line. Without OTA, Cy5-labeled aptamer combined with complementary strands formed a stable double helix. In the presence of OTA, however, the Cy5-aptamer/OTA complexes were generated, and therefore less free aptamer was captured in the test zone, leading to an obvious decrease in fluorescent signals on the test line. The test strip showed an excellent linear relationship in the range from 1 ng·mL−1 to 1000 ng·mL−1 with the LOD of 0.40 ng·mL−1, IC15 value of 3.46 ng·mL−1 and recoveries from 96.4% to 104.67% in spiked corn samples. Thus, the strip sensor developed in this study is an acceptable alternative for rapid detection of the OTA level in grain samples.

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The occurrence of ochratoxin A in white and parboiled rice

Cited by 8 publications

References 40 publications

Exposure to Ochratoxin A from Rice Consumption in Lebanon and United Arab Emirates: A Comparative Study

Exposure to Ochratoxin A from Rice Consumption in Lebanon and United Arab Emirates: A Comparative Study

Implications of Mycotoxins in Food Safety

A Lateral Flow Strip Based Aptasensor for Detection of Ochratoxin A in Corn Samples

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