食品科学 ›› 2008, Vol. 29 ›› Issue (12): 327-330.

• 工艺技术 • 上一篇    下一篇

樟树果实红色素微波提取工艺与清除自由基活性研究

 文赤夫, 王丽芬, 聂琴, 桂克印, 周艳华, 陈功锡, 蔺万煌   

  1. 湖南农业大学生物科学技术学院; 吉首大学城乡资源与规划学院;
  • 出版日期:2008-12-15 发布日期:2011-12-08

Study on Microwave Extraction Conditions and Free Radical Scavenging Activity of Red Pigment from Camphor Tree Fruits

WEN  Chi-Fu, WANG  Li-Fen, NIE  Qin, GUI  Ke-Yin, ZHOU  Yan-Hua, CHEN  Gong-Xi, LIN  Wan-Huang   

  1. 1.College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha 410128,China;2.College of Resource and Planning Science,Jishou University,Zhangjiajie 427000,China
  • Online:2008-12-15 Published:2011-12-08

摘要: 研究樟树果实红色素(RPCF)微波提取条件及果实红色素的抗氧化活性。结果表明,微波功率和处理时间对实验结果影响显著;与热水浸提法相比,该法提取时间由90min减至70s,节省溶剂20%,提取效率提高了3.29%,且减少了酸的用量;RPCF水溶液在1~80mg/L清除DPPH·活性与浓度呈线性相关(R2=0.9915),对DPPH·的半清除率浓度(IC50)为42.97mg/L,相当于VC的34%;100mg/L的RPCF水溶液经光照处理16d其清除自由基活性稳定。

关键词: 樟树, 果实, 红色素, 微波提取, 抗氧化活性

Abstract: The optimum conditions of microwave extraction of red pigment from camphor tree fruit(RPCF) and its antioxidant activity were studied. Results showed that both microwave output power and treatment time significantly affect on the RPCF content;Compared with hot water extraction method,microwave extraction could shorten the extraction time from 90 min to 70 s,save solvent 20%,improve efficiency 3.29%,and reduce the consumption of acid;Within the concentration range of 1 to 80 mg/L,the DPPH· scavenging activity of RPCF shows significantly linear correlation with its concentration(R2=0.9915) ,with IC50 42.97 mg/L(34% of VC) ;The free radical scavenging activity of RPCF solution(100 mg/L) shows considerable stability under 16-d illumination.

Key words: Cinnamomun camphora(L.) Presl, fruit, red pigment, microwave extraction, antioxidant activity