Effect of gamma irradiation and heat treatment on the artificial contamination of maize grains by Aspergillus flavus Link NRRL 5906

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Effect of gamma irradiation and heat treatment on the artificial contamination of maize grains by Aspergillus flavus Link NRRL 5906. / Albuzaudi, Mohamed; Eerikäinen, Tero; Turunen, Ossi; Ghelawi, Mohamed; El Haj Assad, M.; Tawalbeh, M.; Bedade, Dattatray; Shamekh, Salem.

In: JOURNAL OF STORED PRODUCTS RESEARCH, Vol. 71, 01.03.2017, p. 57-63.

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Albuzaudi, Mohamed ; Eerikäinen, Tero ; Turunen, Ossi ; Ghelawi, Mohamed ; El Haj Assad, M. ; Tawalbeh, M. ; Bedade, Dattatray ; Shamekh, Salem. / Effect of gamma irradiation and heat treatment on the artificial contamination of maize grains by Aspergillus flavus Link NRRL 5906. In: JOURNAL OF STORED PRODUCTS RESEARCH. 2017 ; Vol. 71. pp. 57-63.

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@article{6430672ba7804c1e9b7eee6dd715cba2,
title = "Effect of gamma irradiation and heat treatment on the artificial contamination of maize grains by Aspergillus flavus Link NRRL 5906",
abstract = "Maize (Zea mays L.) is one of the main crops, which is easily susceptable to Aspergillus flavus infection resulting in huge losses worldwide. This study was carried out to investigate the effect of combining heat and irradiation treatments in controlling the fungal growth in maize grains. Surface disinfected maize grains were artificially contaminated with spores of Aspergillus flavus Link NRRL 5906, and then exposed to gamma radiation with doses of 3.0, 4.0 and 5.0 kGy. The samples were additionally heat treated at 60 °C for 30 min. The heat and irradiation treatments showed a synergistic effect on controlling Aspergillus flavus growth. The heat treatment reduced the required radiation dose of about 0.5–1.0 kGy when 4.0 kGy or 5.0 kGy irradiation was used. The combined heat and irradiation treatment of moisture reduced the average CFU by 8 log cycles when 4 kGy or 5 kGy irradiation was used and by 7 log cycles when 3 kGy irradiation was used. The heat treatment of moisture alone reduced the average CFU by only by 0.8 log cycles. Combining irradiation with heat treatment to reduce the required radiation dose is very useful especially when there is a concern over biological side effects of irradiation.",
keywords = "Aspergillus flavus, Gamma irradiation, Heat treatment, Maize",
author = "Mohamed Albuzaudi and Tero Eerik{\"a}inen and Ossi Turunen and Mohamed Ghelawi and {El Haj Assad}, M. and M. Tawalbeh and Dattatray Bedade and Salem Shamekh",
year = "2017",
month = "3",
day = "1",
doi = "10.1016/j.jspr.2017.01.003",
language = "English",
volume = "71",
pages = "57--63",
journal = "JOURNAL OF STORED PRODUCTS RESEARCH",
issn = "0022-474X",
publisher = "Elsevier Limited",

}

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TY - JOUR

T1 - Effect of gamma irradiation and heat treatment on the artificial contamination of maize grains by Aspergillus flavus Link NRRL 5906

AU - Albuzaudi, Mohamed

AU - Eerikäinen, Tero

AU - Turunen, Ossi

AU - Ghelawi, Mohamed

AU - El Haj Assad, M.

AU - Tawalbeh, M.

AU - Bedade, Dattatray

AU - Shamekh, Salem

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Maize (Zea mays L.) is one of the main crops, which is easily susceptable to Aspergillus flavus infection resulting in huge losses worldwide. This study was carried out to investigate the effect of combining heat and irradiation treatments in controlling the fungal growth in maize grains. Surface disinfected maize grains were artificially contaminated with spores of Aspergillus flavus Link NRRL 5906, and then exposed to gamma radiation with doses of 3.0, 4.0 and 5.0 kGy. The samples were additionally heat treated at 60 °C for 30 min. The heat and irradiation treatments showed a synergistic effect on controlling Aspergillus flavus growth. The heat treatment reduced the required radiation dose of about 0.5–1.0 kGy when 4.0 kGy or 5.0 kGy irradiation was used. The combined heat and irradiation treatment of moisture reduced the average CFU by 8 log cycles when 4 kGy or 5 kGy irradiation was used and by 7 log cycles when 3 kGy irradiation was used. The heat treatment of moisture alone reduced the average CFU by only by 0.8 log cycles. Combining irradiation with heat treatment to reduce the required radiation dose is very useful especially when there is a concern over biological side effects of irradiation.

AB - Maize (Zea mays L.) is one of the main crops, which is easily susceptable to Aspergillus flavus infection resulting in huge losses worldwide. This study was carried out to investigate the effect of combining heat and irradiation treatments in controlling the fungal growth in maize grains. Surface disinfected maize grains were artificially contaminated with spores of Aspergillus flavus Link NRRL 5906, and then exposed to gamma radiation with doses of 3.0, 4.0 and 5.0 kGy. The samples were additionally heat treated at 60 °C for 30 min. The heat and irradiation treatments showed a synergistic effect on controlling Aspergillus flavus growth. The heat treatment reduced the required radiation dose of about 0.5–1.0 kGy when 4.0 kGy or 5.0 kGy irradiation was used. The combined heat and irradiation treatment of moisture reduced the average CFU by 8 log cycles when 4 kGy or 5 kGy irradiation was used and by 7 log cycles when 3 kGy irradiation was used. The heat treatment of moisture alone reduced the average CFU by only by 0.8 log cycles. Combining irradiation with heat treatment to reduce the required radiation dose is very useful especially when there is a concern over biological side effects of irradiation.

KW - Aspergillus flavus

KW - Gamma irradiation

KW - Heat treatment

KW - Maize

UR - http://www.scopus.com/inward/record.url?scp=85012254440&partnerID=8YFLogxK

U2 - 10.1016/j.jspr.2017.01.003

DO - 10.1016/j.jspr.2017.01.003

M3 - Article

VL - 71

SP - 57

EP - 63

JO - JOURNAL OF STORED PRODUCTS RESEARCH

JF - JOURNAL OF STORED PRODUCTS RESEARCH

SN - 0022-474X

ER -

ID: 11091514