Ultraviolet protection property of mulberry fruit extract on cotton fabrics

Anthocyanin extracted from mulberry fruit has been applied onto the cotton fabric for protection against ultraviolet radiation. The amount of anthocyanin present in the mulberry extracts has been evaluated by pH differential method. The effect of anthocyanin concentration and its pH on the ultraviolet protection factor (UPF) of the fabric is studied. The study shows that higher concentration of anthocyanin at acidic pH yields higher UPF to the fabric than lower concentration. It is also found that there is no difference in UPF between the fabrics treated with crude mulberry fruit extract and the fabric treated with anthocyanin extracted from the mulberry fruit.