食品科学 ›› 2006, Vol. 27 ›› Issue (3): 110-114.

• 工艺技术 • 上一篇    下一篇

影响雨生红球藻中虾青素的提取条件的研究

 赵立艳, 陈芳, 廖小军, 吴继红, 胡小松   

  1. 中国农业大学食品科学与营养工程学院
  • 出版日期:2006-03-15 发布日期:2011-09-06

Study on Extraction Conditions of Astaxanthin from Haematococcus pluvialis

 ZHAO  Li-Yan, CHEN  Fang, LIAO  Xiao-Jun, WU  Ji-Hong, HU  Xiao-Song   

  1. College of Food Science and Nutritional Engineering, China Agricultral University, Beijing 100083, China
  • Online:2006-03-15 Published:2011-09-06

摘要: 冻干的雨生红球藻粉为原料,采用乙醇和乙酸乙酯混合溶剂进行虾青素酯的提取。L9(33)正交试验筛选获得虾青素酯的最佳条件为:温度25℃,提取时间为6h,乙酸乙酯和乙醇的配比为1:2,固液比为1:120(g/ml)。对提取的虾青素酯进行皂化,分别研究了4℃和40℃时碱的浓度及皂化时间对提取效果的影响。结果表明:0.06mol/LKOH甲醇溶液于4℃皂化12h效果最好,从100mg藻粉可以得到(575.86±5.68)μg虾青素单体。

关键词: 皂化, 雨生红球藻, 虾青素, 提取

Abstract: The optimal extraction conditions of astaxanthin esters from freeze-dryed algae sample were: extracted with the mixedsolvents of ethyl acetate and ethanol, temperature 25℃, extracting time 6 h, ratio of ethyl acetate and ethanol 1:2, and proportionof solid to liquid 1:120 (g/ml). Astaxanthin esters could be hydrolyzed to free astaxanthin by saponification, while low temperaturewould help astaxanthin decrease disruption during the saponification. The saponification conditions were also studied, and theeffects of concentration of methanolic KOH solution and the saponification time were assayed respectively. The optimumconditions were 6ml of 0.06mol/L methanolic KOH solution added to 4ml pigment extract solution, and saponified 12 h at 4℃in darkness. With this method, (575.86±5.68)μg trans-astaxanthin is obtained from 100mg dry algal cells.

Key words:  , saponification; Hematococcus pluvialis; astaxanthin; extraction;