食品科学 ›› 2011, Vol. 32 ›› Issue (14): 6-10.doi: 10.7506/spkx1002-6630-201114002

• 工艺技术 • 上一篇    下一篇

酸性水提取柑橘皮渣柠檬苦素工艺

吴 剑,曾凡坤*,陈飞平   

  1. 西南大学食品科学学院
  • 出版日期:2011-07-25 发布日期:2011-06-18
  • 基金资助:
    “十一五”国家科技支撑计划项目(2007BAD47B06-4)

Process Optimization for Acidic Water Extraction of Limonin from Citrus Peels by Response Surface Methodology

WU Jian,ZENG Fan-kun*,CHEN Fei-ping   

  1. (College of Food Science, Southwest University, Chongqing 400715, China)
  • Online:2011-07-25 Published:2011-06-18

摘要: 以使用硫酸调节纯水得到的酸性水为溶剂,采用高效液相色谱测定柠檬苦素含量,浸提柑橘皮渣中柠檬苦素。在热浸提时间、温度及料液比单因素试验的基础上,利用三元二次旋转组合试验设计优化提取条件,建立三因素与柠檬苦素得率之间的数学模型。结果表明,酸性水提取柑橘皮渣中柠檬苦素的最佳工艺条件为提取时间2.6h、温度61.2℃、料水比1:19.2(g/mL)、酸性水提取液pH4。在此工艺条件下,柠檬苦素的得率为0.117mg/g。

关键词: 旋转正交, 高效液相色谱, 柑桔皮渣, 柠檬苦素, 提取

Abstract: The pH of pure water was adjusted with sulfuric acid to provide a solvent for the extraction of limonin from citrus peels. Limonin quantification was performed by HPLC. Based on one-factor-at-a-time experiments, a three-variable quadratic rotary unitization design combined with response surface methodology was used to optimize three conditions for acidic water extraction of limonin from citrus peels, and a mathematical model describing limonin yield versus the three extraction conditions was built. The optimal extraction conditions of limonin from citrus peels were 2.6 h extraction at 61.2 ℃, pH 4 and a solid-to-liquid ratio 1:19.2 (g/mL). Under the optimized conditions, a limonin yield of 0.117 mg/g was achieved.

Key words: citrus peels, limonin, extraction, quadratic rotary unitization design, high performance liquid chromatography

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