Objective: To optimize extraction condition of degumming from flax seed by the response surface method.
Methods: The central composite design-response surface method selected the best technology and forecasting analysis with the ratio of material to liquid, sodium chloride dosage, soaks time as the independent variable and flax seed dry rubber weight for the dependent variable, through to the level of the independent variable multiple linear regression and binomial fitting.
Results: The optimum process condition was as follows: ratio of liquid to materials was 37:1, sodium chloride dosage was 2 g, soaks time was 120 min.
Conclusion: The method is simple, reasonable, stable and predictability.
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