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Use of some fractions of technical hemp in cosmetics
Gregarová, Lenka ; Hudečková, Helena (referee) ; Márová, Ivana (advisor)
Cannabis sativa is a versatile herb which is known for several thousand years and contains a variety of active substances. This thesis is focused on the use of some extracts of hem in cosmetics, specifically in hair cosmetics. The first part focuses on the Cannabis sativa, introducing the active contained substances and the overall processing of the plant. In the second part were experimentally determined the active substances in five extracts from different varieties, that were supplied from industry. Extracts were compared based on the extraction yield of antioxidants, chlorophylls, phenolic compounds, flavonoids and cannabinoids. Subsequently, a hair shampoo was prepared with the addition of hemp extracts and hemp hydrolysate. Lastly, the inhibitory effect against microorganisms was monitored for extracts and shampoos finally. Beneficial biologically active substances were detected in hemp extracts, wherein higher levels were measured in ethanol extracts. The extracts were also able to inhibit the growth of certain microorganisms. Satisfactory results on hair were observed with the prepared shampoo.
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