| Jerusalem artichoke as a kind of ecological and economic plant with profound development potential,is suitable for planting in light saline-alkali land.Jerusalem artichoke can not only improve the utilization rate of saline-alkali land and improve ecological environment of saline-alkali land,Jerusalem artichoke tubers can also be the resources of inulin,driving the development of salt-tolerant plant production.Inulin as a functional food ingredients has been widely used in the west.Inulin possesses various physiological functions,such as maintaining balance of lipid metabolism,controlling of blood sugar level,promoting of mineral absorption,antioxidant property and so on.Inulin research has attracted more attention as to its favorable application foreground.Asini Corii Colla is a good tonic medicine with the effect of tonifying blood and arresting bleeding and nourishing yin and moistening lung,as well as the effect of anti-fatigue,anti-tumor and immunity improvement and so on.It was regarded as blood tonic “effective medicine” by doctors of all dynasties.The range of application is limited owing to the fire toxin of Asini Corii Colla.The functionality of product and economic value can be increased prominently through the combination of inulin and Asini Corii Colla.In this thesis,inulin is prepared with the method of belt type squeezing,which can be used to explore the new technology of inulin preparation.Desalination and decoloring processes are optimized in the process of extraction.Asini Corii Colla and inulin are used as the raw material to prepare the product.The contents and results are as follows:The natural inulin with pure color was obtained after the following extraction processes: cleaning,pulping,ultrasonic soaking,squeezing,extracting,removal of impurities,filteration,desalination,decoloration,concentration and spray-drying.According to the results of single factor experiments,three extraction parameters including the extraction temperature,the length of extraction time and liquid-to-solid ratio were as the response value of the inulin extraction yield through Box-Behnken response surface design methodology.The results were described as follows: the extraction temperature was 74.09°C,an extraction time of 65.35 min and a liquid-to-solid ratio of 4m L/g.Under the optimal conditions,the maximum inulin yield was up to 86.0%.Four kinds of ion exchange resin with best properties were chosen from ten different series combined ion exchange resin through preliminary screening.Ion exchange resin elected combines at an order of strongly basic anion exchange resin,strongly acidic cationic exchange resin,weakly basic anion exchange resin.Taking the Jerusalem artichoke extraction after preliminary treatment through the ion exchange column in turn to get the best resin combination plan through the electrical conductivity,salinity and light transmittance experiment index determination.We obtained the best combination about desalination and decoloring: D202 Strongly basic anion exchange resin,HD-8 Strongly acidic cationic exchange resin,D315 Weakly basic anion exchange resin which can reach a high Decolorization rate at 99.76% and a ion removal rate at 93.68%.Asini Corii Colla and inulin were used as the raw material to prepare the product.The preparation method of the product was studied through the single factor and orthogonal experiment.The dosage and function between the inulin and Asini Corii Colla was determined through the animal experiment evaluation.The results of animal experiment evaluation indicated that the blood sugar levels decreased significantly.The experiment of ink propelling rates showed that this produc can effectively promote intestinal peristalsis. |
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