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. 2025 Oct 3;25:627. doi: 10.1186/s12866-025-04329-1

Table 6.

The effect of different concentration of violet pigment GH90 on the UPF of natural, synthetic and blend fabrics

Type of sample UPF at different concentration of violet pigment produced by S. zaomycetitus GH90.
Concentration of pigment GH8 0.5% 1% 1.5% 2%
Wool 55.43 65.76 73.65 72.34
Cotton 23.87 33.63 49.5 54.6
Polyester 61.64 61.99 72.58 74.34
Cotton/polyester 62.32 53.24 62.93 63.98
Polyamide 65.34 64.43 77.37 78.19

UPF The Ultraviolet Protection Factor