Optimization of extraction technology polysaccharide from the ink of the Sthenoteuthis oualaniensis in South China Sea by response surface methodology
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摘要: 目的:为探索南海鸢乌贼墨汁多糖的最佳提取工艺,利用响应面分析法对南海鸢乌贼墨汁多糖提取工艺进行优化。方法:在单因素实验基础上选取因素与水平,根据中心组合实验设计原理采用三因素三水平的响应面分析法,以获得多元二次线性回归方程,以Y(多糖含量(%)×粗多糖得率(%)×104)为响应值分析各因素的交互作用。结果:鸢乌贼墨汁多糖提取的最佳工艺条件:料液比1∶2、浸提液p H5.5、加酶量1.00%,此条件下,粗多糖得率为0.91%,多糖含量为9.8%,与理论预测值接近。结论:采用响应面法优化鸢乌贼墨多糖提取工艺,取得最佳提取工艺,且具有可行性。Abstract: Objective: To explore the optimum extraction process of polysaccharide from the ink of the Sthenoteuthis oualaniensis in South China Sea,response surface methodology( RSM) was employed to optimize extraction process of polysaccharide from the ink of the Sthenoteuthis oualaniensis. Methods: Experiment factors and levels were first selected on the ground of single factor experiment.Along with the center combination experiment design principle,three factors and three levels of response surface analysis were adopted to obtain a multiple quadratic linear regression equation and analyzed the interaction among factors chosen Y( polysaccharide content × total sugar quality,100 g ink extraction product of quality of crude polysaccharide and total sugar content%) as the response value. Results: The optimum extraction conditions of polysaccharide from the ink of the Sthenoteuthis oualaniensis in South China Sea were concluded as follows: ratio of solid to liquid 1∶ 2,water extract p H5.5,enzyme concentration 1.00%.Under this condition,polysaccharide content and crude polysaccharide extraction yield value of polysaccharide from the ink of the Sthenoteuthis oualaniensis was 9.8% and 0.91% respectively.Conclusion: The RSM was employed to optimize extraction process of polysaccharide from the ink,which had feasibility and good effect.
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