Journal
MOLECULES
Volume 28, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/molecules28166128
Keywords
stress; dark tea polysaccharide; cortisol; sebum
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This paper developed a new skincare application scenario for dark tea and investigated the effects of dark tea polysaccharide (DTP) on stress-induced skin problems. The results showed that DTP reduced cortisol conversion and suppressed the elevation of lipid levels in sebocytes. In addition, the composition and structure of DTP were verified. In summary, DTP has a unique and significant stress-relieving effect, which provides new ideas for the development of new ingredients in the skincare industry.
A new skincare application scenario for dark tea, a unique and post-fermented tea popular in the health food industry, was developed in this paper. The effects of dark tea polysaccharide (DTP) on stress-induced skin problems and its mechanism of action were investigated by modeling cortisone-induced stress injury in human HaCaT keratinocytes and SZ95 sebaceous gland cells. The results showed a reduced cortisol conversion induced by cortisone under the action of DTP with a concentration of 200 mu g/mL, probably by inhibiting the expression of the HSD11B1 enzyme. DTP was also able to suppress the cortisone-induced elevation of lipid levels in SZ95 sebocytes at this concentration. In addition, the composition and structure of DTP were verified by ultrafiltration, ultraviolet-visible spectrophotometry (UV-VIS), high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) and infrared spectroscopy. In brief, DTP has a unique and significant stress-relieving effect, which provides new ideas for the development of new ingredients for the skin care industry.
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