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Acta Alimentaria
Authors:
O. Csernus
,
J. Beczner
,
F. Sebők
,
M. Tóth
, and
Cs. Dobolyi

The surface microbial contamination is of great interest in case of fruit because of the threat of postharvest spoilage. Apple is a valuable product from growing, commercial, as well as from nutritional points of view. Apple diseases during the growing season can be satisfactorily controlled by different plant protection technologies, but postharvest decay of apples caused by the so called storage moulds cannot be completely avoided. Cold storage — alone, or in combination with other methods — is the main technology used to successfully prolong the shelf life of apples. The origin of the moulds causing the decay of apples during storage is not well understood. In this work the surface mycobiota of apple fruit grown in Soroksár, in the orchard of the Corvinus University of Budapest was investigated.

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Acta Alimentaria
Authors:
Cs. Dobolyi
,
F. Sebők
,
J. Varga
,
S. Kocsubé
,
G. Szigeti
,
N. Baranyi
,
Á. Szécsi
,
B. Tóth
,
M. Varga
,
B. Kriszt
,
S. Szoboszlay
,
C. Krifaton
, and
J. Kukolya

Climate change affects the occurrence of fungi and their mycotoxins in foods and feeds. A shift has recently been observed in the presence of aflatoxin producer Aspergillus spp. in Europe, with consequent aflatoxin contamination in agricultural commodities including maize in several European countries that have not faced with this problem before, including, e.g. Northern Italy, Serbia, Slovenia, Croatia and Romania. Although aflatoxin contamination of agricultural products including maize is not treated as a serious threat to Hungarian agriculture due to climatic conditions, these observations led us to examine the mycobiota of maize kernels collected from Hungarian maize fields. Using a calmodulin sequence-based approach, A. flavus isolates have been identified in 63.5% of the maize fields examined in 2009 and 2010, and 18.8% of these isolates were found to be able to produce aflatoxins above 5 μg kg−1 on maize kernels as determined by ELISA, HPLC-FL, HPLC-MS analyses and SOS-Chromotest. These data indicate that aflatoxin producing Aspergilli are present in Hungarian agricultural fields, consequently climate change with elevated temperatures could lead to aflatoxin contamination of Hungarian agricultural products, too.

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Acta Alimentaria
Authors:
Cs. Dobolyi
,
F. Sebők
,
J. Varga
,
S. Kocsubé
,
G. Szigeti
,
N. Baranyi
,
Á. Szécsi
,
B. Tóth
,
M. Varga
,
B. Kriszt
,
S. Szoboszlay
,
C. Krifaton
, and
J. Kukolya
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