Abstract:

Aflatoxin B1 (AFB1) was treated by low temperature radio frequency plasma (LTRFP) and the degradation rate of
AFB1 was analyzed by high performance liquid chromatography (HPLC). The effect of peanut components including protein,
fat, vitamins and moisture on the degradation of aflatoxin B1 by LTRFP treatment was explored. The results showed that
LTRFP treatment at different processing powers could significantly reduce the degradation rate of AFB1 with peanut protein
or corn protein added. Under the same treatment conditions, adding peanut protein could result in lower degradation rate of
AFB1 than did adding corn protein. After adding oleic acid or linoleic acid, plasma treatment could significantly reduce the
degradation rate of AFB1. Under the same treatment conditions, the degradation rates of AFB1 in the presence of oleic acid
and linoleic acid added were basically the same. After adding vitamin E, the degradation rate of aflatoxin was higher than
that of the blank group. Under the same treatment conditions, the more vitamin E was added, the lower the degradation rate
of AFB1 was. Therefore, peanut components have significant influence on the degradation of AFB1 by LTRFP treatment.

Key words: low temperature radio frequency plasma (LTRFP), peanut components, aflatoxin B1, degradation rate