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林产化学与工业 ›› 2019, Vol. 39 ›› Issue (5): 95-100.doi: 10.3969/j.issn.0253-2417.2019.05.013

• 研究报告 • 上一篇    下一篇

青龙衣中胡桃醌的提取及其抑菌活性研究

李文君1, 王成章1, 刘辰婧2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业和草原局林产化学工程重点实验室;江苏省生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 南京林业大学 轻工与食品学院, 江苏 南京 210037
  • 收稿日期:2019-02-18 出版日期:2019-10-25 发布日期:2019-11-01
  • 通讯作者: 王成章,研究员,博士生导师,研究领域为天然产物化学与利用;E-mail:wangczlhs@sina.com E-mail:wangczlhs@sina.com
  • 作者简介:李文君(1989-),女,河南周口人,助理研究员,博士生,主要从事木本植物效用成分的研究
  • 基金资助:
    江苏省生物质能源与材料重点实验室基本科研业务费项目(JSBEM-S-201810);中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZA004-2)

Extraction and Antimicrobial Activity of Juglone from Pericarpium Juglandis

LI Wenjun1, WANG Chengzhang1, LIU Chengjing2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Received:2019-02-18 Online:2019-10-25 Published:2019-11-01

摘要: 以青龙衣为原料,采用超声波辅助提取青龙衣中胡桃醌,通过单因素和正交试验优化得到最佳提取工艺条件;并以甲醇和商用YZN-Y500纳米银抗菌溶液作对照,考察最佳提取工艺条件下得到的质量浓度分别为0.20、0.02、0.01、0.005和0.002 5 g/L的青龙衣提取物样品溶液,对枯草芽孢杆菌、肺炎链球菌、金黄色葡萄球菌和表皮葡萄球菌的抑菌活性。研究结果表明:以甲醇为浸提溶剂,浸泡时间6 h,液料比5:1(mL:g),超声波作用时间35 min的最佳提取条件下胡桃醌得率0.246%,浸膏得率13.88%。青龙衣提取物溶液具有较强的抑菌活性,且溶液浓度越高,抑菌效果越明显;质量浓度为0.20、0.02 g/L的青龙衣提取物样品溶液对4种菌的抑菌圈直径可达15~25 mm,抑菌效果强于0.01g/L的商用纳米银溶液。

关键词: 青龙衣, 胡桃醌, 超声波辅助, 纳米银溶液, 抑菌活性

Abstract: Juglone was extracted from pericarpium juglandis by ultrasound-assisted method. The optimal conditions of extracting juglone were obtained by single experiment and orthogonal test as follows:soaking time was 6 h using methanol as solvent, ratio of liquid to material was 5:1(mL:g), ultrasonic time was 35 min, and the yield of juglone was 0.246% and the yield of extract was 13.88%. The antibacterial activities of extract on Bacillus subtilis, Streptococcus pneumoniae, Staphylococcus aureus and S. epidermidis of juglone was investigated by mass concentration of 0.002 5-0.20 g/L, compared with commercial YZN-Y500 nano-silver. The results showed that the optimum extraction conditions was as follows:The antibacterial effect of pericarpium juglandis extract on the mass concentrations of 0.20 g/L and 0.02 g/L was stronger than that of commercial silver nanoparticles.

Key words: pericarpium juglandis, nutcrone, ultrasound assisted, nano-silver solution, antibacterial activity

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