الكشف عن التلوث بالفطريات و سموم أفال B1 و B2 و أوكرا A و السترنين في حبوب الحنطة و بعض منتجاتها و تأثيرات التصنيع و الخزن عليها

Abstract EN

The aim of the study was to detect fungal contamination and Afiatoxin Bi, B2, Ochratoxin A and Citrinin in di"*um wheat, and some wheat products (habbia , burgul and gerresh) and to monitor the toxins concentration during processing and storage for 120 days.

The isolated fungal genera from wheat were: Alternaria, Aspergillus, Penicillium, Rhizopus, Mucor, Fusarium and Cladosporium.

The first three were the most frequently isolates.

The genera that were isolated from habbia were Aspergillus, Penicillium and Rhizopus, and the most frequently was Aspergillus.

The genera that were isolated from burgul were Aspergillus ^Penicillium, Rhizopus and Mucor, while the Aspergillus was the only isolate from gerresh.

The durum wheat used for manufacturing habbia were contaminated with Afiatoxin Bt, Ochratoxin A and Citrinin at 0.11, 1.33 and 62.52u.g/kg, respectively.

These toxins were decreased by processing to 0, 0.13 and 11.91u.g/kg .

The wheat used in manufacture of burgul contained Afiatoxin Bi 0.35u.g/kg, B2 0.003u.g/kg, Ochratoxin A 2.80ug/kg and Citrinin 60.38u.g/kg.

These toxins were decreased due to processing to 88, 100, 97.3 and 99.6% respectively.

The wheat used for production of gerresh were contaminated with Afiatoxin Bi, B2, Ochratoxin A and Citrinin at Cone.

0.66, 0.01, 2.95 and 43.17u.g/kg processing steps of gerresh led to decrease toxins to 0, 0, 0.06 and 1.51u.g/kg respectively with percentage decrease were 100,100, 9/.96 »nd 96.50% respectively.