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植物研究 ›› 2025, Vol. 45 ›› Issue (1): 111-118.doi: 10.7525/j.issn.1673-5102.2025.01.012

• 研究论文 • 上一篇    下一篇

铁皮石斛叶多糖美白和抗氧化活性

闫昱辛1,2, 何美军1, 李宇1, 袁晓曼1, 谭旭辉1, 程名1, 罗凯2, 廖璐婧1()   

  1. 1.湖北省农业科学院中药材研究所/农业农村部中药材生物学与栽培重点实验室,恩施 445000
    2.湖北民族大学生物与食品工程学院,恩施 445000
  • 收稿日期:2024-07-25 出版日期:2025-01-20 发布日期:2025-01-23
  • 通讯作者: 廖璐婧 E-mail:284372681@qq.com
  • 作者简介:闫昱辛(2000—),女,硕士研究生,主要从事农产品加工及贮藏工程研究。
  • 基金资助:
    现代农业产业技术体系建设专项(CARS-21);湖北省重点研发计划项目(2020BCA059);恩施州技术支撑科技计划项目(XYJ2023000044)

Whitening and Antioxidant Activities of Leaf Polysaccharide from Dendrobium officinale

Yuxin YAN1,2, Meijun HE1, Yu LI1, Xiaoman YUAN1, Xuhui TAN1, Ming CHENG1, Kai LUO2, Lujing LIAO1()   

  1. 1.Institute of Chinese Herbal Medicines,Hubei Academy of Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine,Ministry of Agriculture and Rural Affairs,Enshi 445000
    2.School of Biological and Food Engineering,Hubei University for Nationalities,Enshi 445000
  • Received:2024-07-25 Online:2025-01-20 Published:2025-01-23
  • Contact: Lujing LIAO E-mail:284372681@qq.com

摘要:

采用水提醇沉法提取纯化名贵药食同源中药材铁皮石斛(Dendrobium officinale)茎、叶组织多糖,并研究其吸湿、保湿、美白、抗氧化等活性。从铁皮石斛叶中提取纯化获得的叶多糖(leaf polysaccharide,L-POL)得率为(13.95±0.27)%,纯度达(92.14±7.75)%。L-POL具有较好的吸湿、保湿活性,吸湿率、保湿率分别为(9.50±0.57)%、(25.13±0.24)%。L-POL具有较强的2,2-联苯基-1-苦基肼基(DPPH)自由基清除能力和体外酪氨酸酶抑制活性,IC50值分别为2.232、54.930 g⋅L-1。质量浓度为125 mg⋅L-1的L-POL能显著抑制小鼠黑色素瘤细胞B16合成黑色素,抑制率达36.89%。此外,75~300 mg⋅L-1的L-POL对小鼠黑色素瘤细胞没有细胞毒性(细胞活力89.33%~102.00%)。高纯度的L-POL具有较好的抗氧化、美白、吸湿、保湿活性,为铁皮石斛资源进一步在化妆品或美白功能食品领域中的开发利用提供了新的思路。

关键词: 铁皮石斛, 叶多糖, 吸湿保湿, 抗氧化, 美白活性

Abstract:

Polysaccharide from the stems and leaves of Dendrobium officinale was extracted and purified by water extraction and alcohol precipitation, and its hygroscopic, moisturizing, whitening and antioxidant activities were clarified, respectively. The yield of polysaccharide(L-POL) extracted and purified from D. officinale leaves was(13.95±0.27)% and the purity was(92.14±7.75)%. L-POL had good moisture absorption and moisture retention effects, and moisture absorption rate and moisture retention rate were(9.50±0.57)% and (25.13±0.24)%, respectively. L-POL had strong DPPH free radical scavenging ability and in vitro tyrosinase activity with IC50 value of 2.232 and 54.930 g⋅L-1, respectively. L-POL with a concentration of 125 mg⋅L-1 could significantly inhibit the synthesis of melanin by mouse melanoma cells B16 with an inhibitory rate of 36.89%. In addition, L-POL with concentrations ranging from 75-300 mg⋅L-1 was not cytotoxic to mouse melanoma cells(cell viability of 89.33%-102.00%). The high-purity L-POL had good antioxidant, whitening, moisture absorption and other activities, which provided a new idea for the further development and utilization of D. officinale resources in cosmetics or whitening functional foods.

Key words: Dendrobium officinale, leaf polysaccharide, moisture-absorption and retention, antioxidation, skin whitening activity

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