EDTA-Na_2 Extraction of Agarose with Response Surface Optimization
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摘要: 探讨了提取工艺中主要影响因子EDTA-Na2浓度、提取温度、提取时间对硫酸根含量及凝胶强度的影响,并利用响应面法优化提取工艺,得出最佳工艺参数为:EDTA-Na2浓度4.5g.L-1,提取温度65℃,提取时间3h,在最佳提取工艺的条件下制得的琼脂糖,其硫酸根含量为0.48%,凝胶强度为1 073.09g.cm-2。对最优工艺参数进行重复性验证,相对误差在1.0%以内。表明该方法具有较高的准确性和重复性,可作为琼脂糖的粗提方法。Abstract: This paper studied the technique of agarose extraction with EDTA-Na2 method.The main factors discussed were: EDTA-Na2 concentration,extraction temperature and extraction time on influencing in sulfate radical content and gel strength.Using the response surface method to optimize the extraction process,the best parameters were EDTA-Na2 concentration 4.5 g·L-1,extraction temperature 65℃ and extracting time 3 h.With the optimized parameters,the sulfate radical content and gel strength of agarose extracted were 0.48% and 1 073.09 g·cm-2,respectively.The optimal extraction parameters were verified by repetitive tests with relative error <1.0%.It is suggested that EDTA-Na2 method is accurate and repeatable in using for agarose extraction.
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Key words:
- Response surface method /
- EDTA-Na2 method /
- agarose
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[1] JOHN STELLWAGEN,NANCY C.STELLWAGEN.Internal Structure of the Agarose Gel Matrix[J].Thejournal of physical chemistry,1995,99(12):4247-4251. [2] NIU CHEN,LI YUN.DNA recovery from agarose gels with asimple centrifuge-driven sephadex filtration[J].ForstryStudies in China,2006,8(1):32-34. [3] 韩沾元.琼胶糖及其衍生物的简介[J].化学试剂,1981,2:42-54. [4] RUSSELL B,MEAD T H,POLSON A.A method ofpreparing agarose[J].Biochimica Biophysica Acta,1963:169-174. [5] STELIAN HJERTEN.A new method for preparation ofagarose for gel electrophoresis[J].Biochimica BiophysicaActa,1962:445-449. [6] 金骏,林美娇.海藻利用与加工[M].北京:科学出版社,1993:156-158. [7] 姜晖霞,曾光明.硫酸根离子分析方法评述[J].湖南化工,1998,28(6):14-15. [8] 邱琬钧.对改良硫酸钡比浊法测定水中硫酸根方法的改进[J].环境监测管理与技术,1997,9(2):44-45. [9] 丛建波,王长振,李妍,等.褐藻硫酸多糖硫酸基含量测定-硫酸钡比浊法研究[J].解放军药学学报,2003,19(3):181-183. [10] 卫生部.GB1975-2010食品添加剂琼脂(琼胶)[S].北京:中国标准出版社,2011. [11] 崔青曼,袁春营,孙会芳,等.响应面法优化脉红螺牛磺酸提取工艺研究[J].食品研究与开发,2012,33(8):62-65. [12] 黄煜,王茵,阮伟达,等.响应面法优化鱼鳞脱钙工艺的研究[J].福建水产,2012,34(2):127-133. [13] 林彩平,苏永昌,黄煜,等.鱿鱼肝脏油微胶囊化技术研究[J].福建水产,2012,34(2):111-120. [14] 何保江,赫菊芳,杜彬,等.响应面法优化金丝小枣中黄酮类物质提取的最佳工艺[J].食品工业,2012,3:60-64. [15] 王茂生,梁俊玉,高莹,等.响应面法优化超声辅助提取核桃叶多酚的工艺研究[J].工业技术,2012,33(7):311-314. [16] 赵永强.龙须菜琼胶糖的制备及其副产物的研究[D].广州:广东海洋大学,2010. [17] 陈申如,张其标,苏喜荣.不同来源琼胶提取琼脂糖的比较[J].海洋水产研究,2002,23(4):51-55.
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