Comparison of the sunscreen effect of 18 edible and medicinal plants

doi:10.14088/j.cnki.issn0439-8114.2020.14.030

Abstract

Abstract: In order to screen the natural raw materials of sunscreen, 18 natural medicine plants were selected for sun protection analysis. The antioxidant capacity, ultraviolet light absorption capacity and tyrosinase inhibition activities of the materials were compared. The results showed that Rosae rugosae flos, Eugenia caryophyllata Thunb., Ilex latifolia Thunb. and green tea had strong scavenging activity of free radical. The IC₅₀ of their extracting solution were 35.00, 65.00, 60.00 and 42.00 μg/mL, respectively. When the concentration of ethanol extracting solution was 0.2 mg/mL, Pueraria lobatae radix., Rosae rugosae flos, Coptis chinensis Franch., Ilex latifolia Thunb. and Eugenia caryophyllata Thunb. had a larger absorption value in the ultraviolet medium wave region, and the absorption value decreased successively. The absorption value of Coptis chinensis Franch., Ilex latifolia Thunb., Curcuma Longa Rhizoma., Rosae rugosae flos, Reynoutria japonica Houtt., Sophora japonica L. and Eugenia caryophyllata Thunb in the ultraviolet long wave region were relatively large, and the absorption was decreased successively. The average inhibition rate of Polygoni cuspidati rhizoma, Reynoutria japonica Houtt., Rhodiolae crenulatae radix, green tea, Zanthoxyli pericarpimum, the seed of Vitis vinifera L., Rosae rugosae flos, Sophora japonica L. and Ilex latifolia Thunb. on tyrosinase activity decreased in turn.

Key words: edible and medicinal plants, antioxidant capacity, ultraviolet absorption, tyrosinase activity

CLC Number:

R282

WEN Yan, WANG Xing, GAO Pan-qi, XU Jian-rong, CHEN Hong-ying. Comparison of the sunscreen effect of 18 edible and medicinal plants[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(14): 149-152.

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