Abstract In this study, the selenium enriched peanuts and the different solubility proteins
extracted from them were investigated. The dried defatted selenium enriched peanuts (SeP) powder
(0.3147 lg/g) had a 2.5-fold higher mean total selenium concentration than general peanuts (GP)
power (0.1233 lg/g). The SeP had higher concentration of selenium, manganese and zinc than that
of GP, but less calcium. The rate of extraction of protein was 23.39% for peanuts and alkali soluble
protein was the main component of protein in SeP, which accounted for 92.82% of total soluble
protein and combined selenium was 77.33% of total selenium protein. In different forms of proteins
from SeP, the WSePr due to higher concentration of selenium had higher DPPH free-radical scavenging
activity, higher reducing activity and longer induction time than other proteins.
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