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黄晓冬, 蔡建秀, 戴聪杰, 张阿婷, 董文云. 桐花树叶醇提取物乙酸乙酯部位对大鼠皮肤抗氧化与抗衰老能力的影响[J]. 植物科学学报, 2015, 33(4): 536-544. DOI: 10.11913/PSJ.2095-0837.2015.40536
引用本文: 黄晓冬, 蔡建秀, 戴聪杰, 张阿婷, 董文云. 桐花树叶醇提取物乙酸乙酯部位对大鼠皮肤抗氧化与抗衰老能力的影响[J]. 植物科学学报, 2015, 33(4): 536-544. DOI: 10.11913/PSJ.2095-0837.2015.40536
HUANG Xiao-Dong, CAI Jian-Xiu, DAI Cong-Jie, ZHANG A-Ting, DONG Wen-Yun. Effect of the Ethyl Acetate Fraction from Ethanol Extract of Aegiceras corniculatum Leaves on Antioxidant and Anti-senescence Ability in Rat Skin[J]. Plant Science Journal, 2015, 33(4): 536-544. DOI: 10.11913/PSJ.2095-0837.2015.40536
Citation: HUANG Xiao-Dong, CAI Jian-Xiu, DAI Cong-Jie, ZHANG A-Ting, DONG Wen-Yun. Effect of the Ethyl Acetate Fraction from Ethanol Extract of Aegiceras corniculatum Leaves on Antioxidant and Anti-senescence Ability in Rat Skin[J]. Plant Science Journal, 2015, 33(4): 536-544. DOI: 10.11913/PSJ.2095-0837.2015.40536

桐花树叶醇提取物乙酸乙酯部位对大鼠皮肤抗氧化与抗衰老能力的影响

Effect of the Ethyl Acetate Fraction from Ethanol Extract of Aegiceras corniculatum Leaves on Antioxidant and Anti-senescence Ability in Rat Skin

  • 摘要: 萃取法获得桐花树叶75%乙醇提取物的石油醚、二氯甲烷、乙酸乙酯、正丁醇和水部位(醇沉),从中筛选出多酚与总黄酮含量均较高、DPPH自由基清除能力较强的乙酸乙酯部位作为辅料试配成膏状体,并通过对SD大鼠背部皮肤进行连续外涂实验,测定其皮肤组织匀浆的总超氧化物歧化酶(T-SOD)活性、羟基自由基清除能力、丙二醛(MDA)含量、羟脯氨酸(HYP)和胶原蛋白含量。结果表明:2.0%桐花树叶乙酸乙酯部位膏状体处理组的皮肤组织T-SOD活性、羟基自由基清除能力、HYP和胶原蛋白含量均极显著高于,但MDA含量极显著低于阴性对照组(仅含化妆品基质的膏状体)、阳性对照组(2.0%熊果苷膏状体)与1.0%、0.5%乙酸乙酯部位膏状体处理组(P < 0.01)。说明桐花树叶乙酸乙酯部位是一种潜在的抗氧化或抗衰老化妆品辅料,2.0%乙酸乙酯部位含量是试配该化妆品的有效添加剂量。增强T-SOD活性、提高自由基清除能力、降低MDA含量、促进胶原蛋白合成可能是桐花树叶乙酸乙酯部位预防或延缓皮肤衰老的作用机制。

     

    Abstract: To prepare cream using Aegiceras corniculatum (Linn.) Blanco leaf extract as the active additive and evaluate its antioxidation and anti-aging action in skin, five solvent fractions including petroleum ether, dichloromethane, ethyl acetate, n-butanol and water (by alcohol precipitation) were extracted from 75% ethanol extract of A.corniculatum leaves. Among them, the ethyl acetate fraction with high polyphenol content and total flavonoids and strong radical scavenging ability was screened as the additive to prepare the cream. After continuous application of the cream to the dorsal skin of SD rats, skin samples were collected to determine total superoxide dismutase (T-SOD) activity, hydroxyl radical scavenging ability, malondialdehyde (MDA) content, and hydroxyproline (HYP) and collagen content. Results showed that T-SOD activity, hydroxyl radical scavenging ability and the content of HYP and collagen in the skin tissue from SD rats treated by cream with 2.0% ethyl acetate fraction increased very significantly, but the content of MDA decreased very significantly compared with those of the negative or positive control groups and the 1.0% and 0.5% ethyl acetate fraction treatment groups (P < 0.01). This suggested that the ethyl acetate fraction from A. corniculatum leaves was a potential antioxidant and anti-aging cosmetic additive with an effective dose of 2%, and its mechanism for preventing or postponing skin aging might be through improving T-SOD activity and radical scavenging ability, reducing MDA content, and promoting collagen synthesis.

     

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