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Effect of gamma radiation on the inactivation of aflatoxin B1 in food and feed crops

Abstract

Samples of food crops (peanut, peeled pistachio, unpeeled pistachio, rice, and corn) and feed (barley, bran, corn) were sterilized then inoculated with 10{sup 6} of spore suspension of an isolate of Aspergillus flavus fungus known to produce aflatoxin B1 . Food and feed samples were irradiated with gamma radiation at the doses 4, 6, and 10 kGy. Results indicated that degradation of Aflatoxin B1 was positively correlated with the increase in the applied dose of gamma ray for each tested sample. For example, at a dose of 4 KGy. Percentages of aflatoxin B1 degradation were 8.4, 9.7, 16.6 and 23.5, and 43.97% for peanuts, peeled pistachios, unpeeled pistachios, corn and rice, consecutively . Whereas, at a dose of 10 KGy percentages of aflatoxin degradation reached highest values at 58.6, 68.8, 84.6, 81.1 and 87.8% for peanuts, peeled pistachios, unpeeled pistachios, corn and rice, consecutively In feed samples percentages of aflatoxin degradation were 45, 66, and 90% in barley, 47, 75, and 86% in bran, and 31, 72, and 84% in corn for the doses of 4, 6, and 10 KGy, consecutively. Aflatoxin degradation in food samples correlated negatively with oil content in irradiated samples. Thus, in peanuts, which contained the  More>>
Authors:
Ghanem, I; Orfi, M; Shamma, M [1] 
  1. Atomic Energy Commission, Damascus (Syrian Arab Republic), Dept. of Molecular Biology and Biotechnology
Publication Date:
Aug 15, 2007
Product Type:
Technical Report
Report Number:
AECS-B/RSS-741
Resource Relation:
Other Information: 17 refs., 2 tabs., 1 fig
Subject:
60 APPLIED LIFE SCIENCES; AFLATOXINS; ANIMAL FEEDS; BIOLOGICAL RADIATION EFFECTS; CROPS; DECOMPOSITION; EXPERIMENTAL DATA; FOOD; GAMMA RADIATION; IRRADIATION; RADIATION DOSES
OSTI ID:
21100381
Research Organizations:
Atomic Energy Commission, Damascus (Syrian Arab Republic), Dept. of Molecular Biology and Biotechnology
Country of Origin:
Syrian Arab Republic
Language:
Arabic
Other Identifying Numbers:
TRN: SY0801813110475
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
20 pages
Announcement Date:
Dec 08, 2008

Citation Formats

Ghanem, I, Orfi, M, and Shamma, M. Effect of gamma radiation on the inactivation of aflatoxin B1 in food and feed crops. Syrian Arab Republic: N. p., 2007. Web.
Ghanem, I, Orfi, M, & Shamma, M. Effect of gamma radiation on the inactivation of aflatoxin B1 in food and feed crops. Syrian Arab Republic.
Ghanem, I, Orfi, M, and Shamma, M. 2007. "Effect of gamma radiation on the inactivation of aflatoxin B1 in food and feed crops." Syrian Arab Republic.
@misc{etde_21100381,
title = {Effect of gamma radiation on the inactivation of aflatoxin B1 in food and feed crops}
author = {Ghanem, I, Orfi, M, and Shamma, M}
abstractNote = {Samples of food crops (peanut, peeled pistachio, unpeeled pistachio, rice, and corn) and feed (barley, bran, corn) were sterilized then inoculated with 10{sup 6} of spore suspension of an isolate of Aspergillus flavus fungus known to produce aflatoxin B1 . Food and feed samples were irradiated with gamma radiation at the doses 4, 6, and 10 kGy. Results indicated that degradation of Aflatoxin B1 was positively correlated with the increase in the applied dose of gamma ray for each tested sample. For example, at a dose of 4 KGy. Percentages of aflatoxin B1 degradation were 8.4, 9.7, 16.6 and 23.5, and 43.97% for peanuts, peeled pistachios, unpeeled pistachios, corn and rice, consecutively . Whereas, at a dose of 10 KGy percentages of aflatoxin degradation reached highest values at 58.6, 68.8, 84.6, 81.1 and 87.8% for peanuts, peeled pistachios, unpeeled pistachios, corn and rice, consecutively In feed samples percentages of aflatoxin degradation were 45, 66, and 90% in barley, 47, 75, and 86% in bran, and 31, 72, and 84% in corn for the doses of 4, 6, and 10 KGy, consecutively. Aflatoxin degradation in food samples correlated negatively with oil content in irradiated samples. Thus, in peanuts, which contained the highest oil content, percentage of aflatoxin degradation at 10 KGy was not more than 56.6%, whereas, the corresponding value in corn, which contained the highest oil content, reached as high as 80%. The above results indicate the possibility of using gamma irradiation as a means of degradation of aflatoxin B1 in food and feed crops to lower than the maximum allowed levels using a maximum dose of radiation of 10 KGy which represents the permitted dose of radiation for such type of crops.(author)}
place = {Syrian Arab Republic}
year = {2007}
month = {Aug}
}