Abstract :
The leaves of star fruit (Averrhoa bilimbi L.) contain flavonoids that have the
potential as sunscreen. This study aims to determine the total flavonoid level, the
effectiveness of sunscreen based on the SPF value and to determine the relationship
between the total flavonoid level with the SPF value of the extract and the fraction
of starfruit leaves (Averrhoa bilimbi L.).
Starfruit leaves were extracted by maceration method using 70% ethanol as
solvent and fractionated with n-hexane and ethyl acetate as solvent. Determination
of total flavonoid content with aluminum chloride reagent and determination of
SPF values of 100 ppm, 200 ppm and 300 ppm. Analysis of the relationship
between total flavonoid levels with the SPF value of the extract and the leaf fraction
of star fruit (Averrhoa bilimbi L.) using the Pearson Correlation Test.
The results of the identification of flavonoid compounds extract and fraction
of starfruit leaves contain flavonoid compounds. The results of the total flavonoid
content of the extract, n-hexane fraction, ethyl acetate fraction and water fraction
of starfruit leaves were 1.552±0.039%QE, 1.221±0.006 %QE, 1.752±0.029%QE
and 0.715±0.023 %QE. The results of the effectiveness of sunscreen based on the
SPF value of the extract, the n-hexane and ethyl acetate fractions were ultra
protection, 100 ppm water fraction was maximum protection while 200 ppm and
300 ppm were ultra. Based on the Pearson Correlation Test, the total flavonoid
content with the SPF value of the extract and the fraction of starfruit leaves showed
a perfect relationship.