Cucumber seeds are the seeds of Cucumber(Cucumis sativus L.) , which include a large number of essential fatty acids, plant sterols, glycosides, volatile oils, as well as Ca, Mg ,and other inorganic elements. The cucumber seed oil has a good UV absorption effect because it is rich in an unsaturated functional group structure. Plant sterol in cucumber seed oil has strong permeability to the skin, which promote skin metabolism and inhibit skin inflammation. β-sitosterol in plant sterols can also effectively protect the peroxide of low-density lipoprotein, so they have an antioxidant effect.
In this study, cucumber seed oil was extracted by Soxhlet extraction method as plant sunscreen, in which cucumber seed oil was used as the main component, an appropriate amount of titanium dioxide was used as an antioxidant.Taking the settling solvent ratio as the index, the orthogonal experiment was designed to determine the prescription composition of the pure matrix. Then the single factor experiments of cucumber seed oil, titanium dioxide and vitamin E were carried out. The effects of three components on UV absorption were investigated by orthogonal experiments, and the optimum formula with cucumber seed oil as the main component was finally determined and verified. In conclusion, our plant sunscreen was produced by cucumber seed oil as raw material instead of hormone. There had no harm to the skin. It has the potential to develop plant sunscreen with cucumber seed oil and provides a reference for the development of plant sunscreen and skin care products.
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