Phenolic Compounds, Antimicrobial Effects and Tyrosinase Inhibition Activities of Cucumber Grown Greenhouse According to Cultivars and Growth Stages

Abstract

-The contents of total phenolics and flavonoids, antimicrobial and tyrosinase inhibition activities of five growth stages with four greenhouse-grown cucumber extracts were investigated. Total phenolic content was high in Jangjukcheongjang, Janghyeongnakhap and five growth stage(24～27 cm). The content of total flavonoid did not differ between cultivar or growth stages. Among the four cucumber cultivars, the extract of Janghyeongnakhap showed a relatively strong antimicrobial effect against Staphylococcus aureus. The inhibition zone against Staphylococcus epidermidis of the samples tested in this experiment was 8～12 mm. And the antimicrobial effects against Malassezia furfur was high in Jangjukcheongjang, and showed the highest by the inhibition zone of 14mm in three(17～20 cm) growth stage. The tyrosinase inhibition activity of cucumber extracts showed relatively high activity in Jangjukcheongjang and Sinjoeunbaekdadagi, followed by Janghyeongnakhap. From these results, we confirmed that the extract of cucumber has high antimicrobial and whitening efficacy, and that in the future, the cucumber will be increase the availability in the field of high-value cosmetic materials. Key words -

Comparison of antiaging, anti‐melanogenesis effects, and active components of Raspberry ( Rubus occidentalis L.) extracts according to maturity

“…Results are expressed as means ± SD of three experiments and preventing skin damage from external stimuli such as ultraviolet rays and is closely related to preventing wrinkles and maintaining elastic skin. The decrease in collagen is one of the crucial causes of skin aging and wrinkle formation (Yang & Boo, 2013). Our results…”

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