食品科学

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响应面法优化酶法辅助提取迷迭香酸工艺及其抗氧化活性

黄丹丹,沈 奇,朱秋劲,成 梅,罗自生,茅林春   

  1. 1.贵州大学酿酒与食品工程学院,贵州 贵阳 550025;2.贵州省油菜研究所,贵州 贵阳 550008;
    3.贵州省农畜产品贮藏与加工重点实验室,贵州 贵阳 550025;4.国家牛肉加工技术研发分中心,贵州 惠水 550600;
    5.浙江大学馥莉食品研究院,浙江 杭州 310058
  • 出版日期:2016-07-25 发布日期:2016-07-26
  • 通讯作者: 朱秋劲
  • 基金资助:

    国家自然科学基金地区科学基金项目(31360373);浙江大学馥莉食品研究院资金资助项目(KY201405);
    贵州山区畜产品系列休闲方便肉食品产业化技术成熟化与示范应用项目(700952142111)

Optimization of Enzymatic Extraction of Rosemary Acid by Response Surface Methodology and Its Antioxidant Activity

HUANG Dandan, SHEN Qi, ZHU Qiujin, CHENG Mei, LUO Zisheng, MAO Linchun   

  1. 1. School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; 2. Guizhou Rapeseed Institute,
    Guiyang 550008, China; 3. Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province,
    Guiyang 550025, China; 4. National Beef Processing Technology Research and Detection Sub-centre, Huishui 550600, China;
    5. Fuli Insititute of Food Science, Zhejiang University, Hangzhou 310058, China
  • Online:2016-07-25 Published:2016-07-26
  • Contact: ZHU Qiujin

摘要:

探究酶法辅助对紫苏叶中迷迭香酸提取的最佳工艺,并评价其抗氧化活性。通过单因素试验研究纤维素酶添加量、酶解温度、时间和pH值对迷迭香酸提取得率的影响,采用响应面分析法和Box-Behnken试验设计优化纤维素酶法提取迷迭香酸的最佳工艺参数,并通过迷迭香酸对超氧阴离子自由基和1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基的清除作用来研究其抗氧化活性。结果发现,紫苏叶迷迭香酸最佳提取工艺为纤维素酶添加量3%、酶解温度45 ℃、酶解时间12 min、酶解pH 4,此工艺条件下,迷迭香酸提取得率为0.617%,实际值与理论值0.621%不存在显著性差异,结果合理可靠,可作为紫苏叶迷迭香酸的最佳提取工艺条件。紫苏叶迷迭香酸对DPPH自由基和超氧阴离子自由基的抗氧化实验结果表明,迷迭香酸有较强的抗氧化活性。

关键词: 紫苏, 迷迭香酸, 响应面, 酶法提取, 抗氧化活性

Abstract:

The enzyme-assisted extraction of rosemary acid from Perilla frutescens was optimized applying one-factorat-
a-time method (OFAT) and response surface methodology (RSM) and the antioxidant activity of the rosemary acid was
investigated. Preliminary investigations were conducted into the effect of enzyme dosage, hydrolysis temperature, time and
pH on the extraction yield of rosemary acid. Furthermore, the optimization of process parameters for extracting rosemary
acid by cellulase hydrolysis of Perilla frutescens was done by RSM using Box Behnken design. Meanwhile, the antioxidant
activity was assessed by superoxide anion and 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assays. The
optimal conditions for rosemary acid extraction were determined as follows: enzyme dosage, 3%; hydrolysis temperature,
45 ℃; time, 12 min; and pH, 4. The maximum extraction yield of rosemary acid of 0.617% was obtained in experiments
conducted under these optimal conditions, being not significantly different from the predicted value (0.621%). The rosemary
acid showed strong scavenging capacity on superoxide anion and DPPH radicals, thereby having potent antioxidant activity.

Key words: Perilla frutescens, rosemary acid, response surface methodology, enzymatic extraction, antioxidant activity

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