Author:
Siridechakorn Ittipon,Pimpa Junsuda,Choodej Siwattra,Ngamrojanavanich Nattaya,Pudhom Khanitha
Abstract
AbstractFour flavonoid glycosides, namely quercetin-3-O-rhamnoside (1), kaempferol-3-O-β-d-glucopyranosyl (2), kaempferol-7-O-α-l-rhamnopyranoside (3), and kaempferol-3-O-β-d-glucopyranosyl-7-O-α-l-rhamnopyranoside (4), from Nephelium lappaceum L. seeds were evaluated for their efficacy against melanin inhibition in B16F10 melanoma cells and tyrosinase inhibition. Among them, kaempferol-7-O-α-l-rhamnopyranoside (3) displayed the highest potency in both activities without any significant cytotoxicity. The combination of compound 3 and arbutin in specific proportions demonstrated a synergistic effect (CI < 1) in inhibiting melanin production in B16F10 cells and tyrosinase inhibition. Additionally, a cosmetic formulation containing compound 3 and arbutin as active ingredients exhibited favorable stability under accelerated storage conditions. Quantitative analysis indicated that compound 3 and arbutin levels in the formulation were above 90% after one month of storage. Determination of the formulation's shelf life using the Q10 method, estimating it to be around 5.2 months from the date of manufacture. The synergy between arbutin and kaempferol-7-O-α-l-rhamnopyranoside (3) extracted from N. lappaceum substantially enhances both the whitening effectiveness and the stability of cosmetic formulations.
Funder
Thailand Science Research and Innovation Fund, Chulalongkorn University
Publisher
Springer Science and Business Media LLC
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