| dc.description.abstract | In this report, dried breadfruit leaves collected in two months: October and
January would be extracted in three different solvents: ethanol, 7 ethanol with 3
water (70% ethanol), and 1 ethanol:1 water (50% ethanol) and tested for sun
protection ability. The extraction efficiency for extracts of leaves collected in
October would be 18.52±0.69%, 12.4±0.27% and 31.264±1.72% in order of
the extract solvents: ethanol, ethanol and water in ratio 7:3, and ethanol and
water in ratio 1:1. In addition, the extraction efficiency of the ethanol extract,
70% ethanol extract, and 50% ethanol extract of the leaves collected in January
would be orderly 15.81±1.32%, 11.62±1.11%, and 30.38±1.18%. The results
of an anti-UV test show that breadfruit leaves extracts have potential in
protecting from UV radiation. However, the preventing UV ray ability of most
leaves collected in October extracts is higher than the leaves collected in January
extracts. Among three types of solvents used for extracting breadfruit leaves,
ethanol extracts give the better protection factor data than the other two. | en_US |
