By compounding the cranberry extract,lavender flower extract,Kakadu plum extract,edelweiss flower/leaf extract and aloe vera extract into a composite plant extract(BIRC-Rosée WT100),the whitening effects of this ...By compounding the cranberry extract,lavender flower extract,Kakadu plum extract,edelweiss flower/leaf extract and aloe vera extract into a composite plant extract(BIRC-Rosée WT100),the whitening effects of this composite plant extract in antioxidation,anti-inflammation,skin barrier maintenance,and inhibition of melanin production and transport were evaluated.By comparing the inhibitory effects on tyrosinase activity between the composite plant extract andα-arbutin,and then analyzing the decline of apparent chromaticity,apparent brightness and melanin content through 3D melanin skin model platform,the comprehensive whitening effect was evaluated and compared with that of kojic acid.The results showed that,the composite plant extract(BIRC-Rosée WT100)had a tyrosinase inhibition rate of 98.99%at the original concentration,which was much higher than that ofα-arbutin.In 3D melanin skin model,the apparent chromaticity and brightness could be effectively improved,and moreover,the total amount of melanin in the skin could be reduced,showing remarkable whitening effect.展开更多
The wool which were processed by rare earth in the dyeing processes have soft and loose hair withpure-white tone and silky luster. A few papers concerned with the mechanism of wool dyeing in the presenceof rare earth~...The wool which were processed by rare earth in the dyeing processes have soft and loose hair withpure-white tone and silky luster. A few papers concerned with the mechanism of wool dyeing in the presenceof rare earth~[1,2]. However, the distribution of the combining of rare earth ions with wool toward the color andluster of woollen has not been discussed yet. In this paper, the whitening effect of Inner Mongolia goatwoolprocessed by rare earth after coarse wool were pulled out was investigated by electronic spectral ana-lysis. The wool samples including normal and rare earth processed Inner Mongolia goat wool were supplied展开更多
To discuss the inhibitory effect of supramolecular azelaic acid(SAZA)and azelaic acid(AZA)on melanin synthesis.The inhibition rate of tyrosinase activity was tested in vitro.Zebrafish embryos were exposed to SAZA and ...To discuss the inhibitory effect of supramolecular azelaic acid(SAZA)and azelaic acid(AZA)on melanin synthesis.The inhibition rate of tyrosinase activity was tested in vitro.Zebrafish embryos were exposed to SAZA and AZA in different proportions.The development of embryo melanin was observed and quantitatively analyzed.The experimental result showed that both AZA and SAZA had inhibitory effect on tyrosinase,with IC_(50) of 8.34 mmol/L for AZA and 6.56 mmol/L for SAZA.Zebrafish embryo is basically normally developed,with no obvious deformity.Both AZA and SAZA can inhibit the production of melanin,and the SAZA has a better effect in the same amount of experiment.In addition,AZA is able to inhibit the tyrosinase activity and melanin production in zebrafish embryos.The SAZA prepared by cyclodextrin inclusion has shown better water solubility and significantly improved compatibility.展开更多
文摘By compounding the cranberry extract,lavender flower extract,Kakadu plum extract,edelweiss flower/leaf extract and aloe vera extract into a composite plant extract(BIRC-Rosée WT100),the whitening effects of this composite plant extract in antioxidation,anti-inflammation,skin barrier maintenance,and inhibition of melanin production and transport were evaluated.By comparing the inhibitory effects on tyrosinase activity between the composite plant extract andα-arbutin,and then analyzing the decline of apparent chromaticity,apparent brightness and melanin content through 3D melanin skin model platform,the comprehensive whitening effect was evaluated and compared with that of kojic acid.The results showed that,the composite plant extract(BIRC-Rosée WT100)had a tyrosinase inhibition rate of 98.99%at the original concentration,which was much higher than that ofα-arbutin.In 3D melanin skin model,the apparent chromaticity and brightness could be effectively improved,and moreover,the total amount of melanin in the skin could be reduced,showing remarkable whitening effect.
文摘The wool which were processed by rare earth in the dyeing processes have soft and loose hair withpure-white tone and silky luster. A few papers concerned with the mechanism of wool dyeing in the presenceof rare earth~[1,2]. However, the distribution of the combining of rare earth ions with wool toward the color andluster of woollen has not been discussed yet. In this paper, the whitening effect of Inner Mongolia goatwoolprocessed by rare earth after coarse wool were pulled out was investigated by electronic spectral ana-lysis. The wool samples including normal and rare earth processed Inner Mongolia goat wool were supplied
文摘To discuss the inhibitory effect of supramolecular azelaic acid(SAZA)and azelaic acid(AZA)on melanin synthesis.The inhibition rate of tyrosinase activity was tested in vitro.Zebrafish embryos were exposed to SAZA and AZA in different proportions.The development of embryo melanin was observed and quantitatively analyzed.The experimental result showed that both AZA and SAZA had inhibitory effect on tyrosinase,with IC_(50) of 8.34 mmol/L for AZA and 6.56 mmol/L for SAZA.Zebrafish embryo is basically normally developed,with no obvious deformity.Both AZA and SAZA can inhibit the production of melanin,and the SAZA has a better effect in the same amount of experiment.In addition,AZA is able to inhibit the tyrosinase activity and melanin production in zebrafish embryos.The SAZA prepared by cyclodextrin inclusion has shown better water solubility and significantly improved compatibility.
