What compounds are responsible for the deep purple-blue pigmentation of the sloe skin?
Answer
Anthocyanins
The deep purple-blue coloration observed in the skin of ripe sloes is due to the presence of anthocyanins. These specific pigments are a subcategory of polyphenols, which are found in high concentrations in the fruit, consistent with many other dark berries. Anthocyanins are of significant interest in nutritional science because they are widely studied for their potential roles as potent natural antioxidants, contributing to the fruit's overall health profile.
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