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EPR study of effect of ascorbic acid on hair and feather samples in relation to eumelanins and pheomelanins


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Figure 1

(a) EPR signal for red hair sample soaked in water for 24 hours and dried (left); (b) EPR signal for red hair sample soaked in 100 mM ascorbic acid solution for 24 hours and dried (right).
(a) EPR signal for red hair sample soaked in water for 24 hours and dried (left); (b) EPR signal for red hair sample soaked in 100 mM ascorbic acid solution for 24 hours and dried (right).

g Values for different hair colour types and their comparison on treatment with ascorbic acid.

Hair type Soaked in water for 24 hours Soaked in 10 mM ascorbic acid for 24 hours
Black 2.0039 2.0039
Brown 2.0044 2.0057
Red 2.0051 2.0056
Red hen feather 2.0054 2.0057
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Englisch
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