The Efficiency of Aloe vera Gel Extract in Inhibiting the Growth of Aspergillus flavus Fungus Associated with Imported and Domestic Rice Grains in Iraq and its Ability to Reduce Aflatoxin B1 Production

Arab Journal for Plant Protection Pub Date : 2022-01-01 DOI:10.22268/ajpp-040.2.164168

Kamal Abdulkarim Abbass AlHamiri, H. Z. Hussein

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Abstract

Al-Hamiri, K.A.A. and H.Z. Hussein. 2022. The Efficiency of Aloe vera Gel Extract in Inhibiting the Growth of Aspergillus flavus Fungus Associated with Imported and Domestic Rice Grains in Iraq and its Ability to Reduce Aflatoxin B1 Production. Arab Journal of Plant Protection, 40(2): 164-168. https://doi.org/10.22268/AJPP-040.2.164168 The study aimed to evaluate the efficiency of different concentrations of Aloe vera gel extract in inhibiting the growth of A. flavus on potato dextrose agar (PDA) culture medium, as well as evaluating the efficiency of the extract in inhibiting the growth of A. flavus and reducing Aflatoxin B1 (AFB1) production in rice grains. The results obtained showed that the concentrations 1, 2, 3, and 4% of Aloe vera gel extract caused variable inhibition rates of A. flavus growth on PDA culture medium; of 97, 100, 5.88 and 17.64%, respectively. The best concentration from the laboratory experiment, (2%) was used, to evaluate its efficiency in inhibiting the growth of A. flavus on rice grains during storage and reduced AFB1 production by 86.5%, from 21.2 ppb in the control to 2.86 ppb in the treatment using HPLC high- performance liquid chromatography. The same treatment reduced AFB1 concentration in rice grains contaminated with AFB1 by 74.7%, from 22.88 ppb in control to 5.78 ppb in the extract treatment. Keywords: A. flavus, mycotoxins, aflatoxin B1, Aloe vera, food, feed, toxicity

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芦荟凝胶提取物抑制伊拉克进口和国产稻米黄曲霉真菌生长的效果及其降低黄曲霉毒素B1的能力

Al-Hamiri, K.A.A.和H.Z. Hussein, 2022。芦荟凝胶提取物抑制伊拉克进口和国产稻米黄曲霉真菌生长的效果及其降低黄曲霉毒素B1的能力。植物保护学报，40(2):164-168。https://doi.org/10.22268/AJPP-040.2.164168本研究旨在评价不同浓度芦荟凝胶提取物在马铃薯葡萄糖琼脂(PDA)培养基上抑制黄曲霉生长的效果，以及芦荟凝胶提取物抑制黄曲霉生长和降低稻谷中黄曲霉毒素B1 (AFB1)产生的效果。结果表明，浓度为1、2、3、4%的芦荟凝胶提取物对黄曲霉在PDA培养基上的生长抑制率不同;分别占97、100、5.88和17.64%。采用高效液相色谱法，以室内实验的最佳浓度(2%)为对照，对贮藏期间黄曲霉在稻谷上的生长抑制效果进行了评价，并将AFB1的产量从对照的21.2 ppb降低到处理的2.86 ppb，降低了86.5%。同样的处理使AFB1污染的稻米中AFB1的浓度降低了74.7%，从对照组的22.88 ppb降至提取物处理的5.78 ppb。关键词:黄曲霉，霉菌毒素，黄曲霉毒素B1，芦荟，食品，饲料，毒性

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Arab Journal for Plant Protection

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