Speciation Analysis Of The Trace Elements In Banana Pulp Coupled With Pretreatment Of Digestion Model Outside The Body

There are many kinds of micronutrient elements contained in foods that are vital to human health. The bioavailability of the strong dependence or toxicity microelement elements and toxicity rest with gross content,concentration,chemical forms of elements.Speciation analysis of trace elements in food and its bioavailability is the current international analytical chemistry is an important research focus areas, one of control over food safety and nutrition assessment, and to maintain the health of the body of vital importance.In this paper, use banana pulp as mostly material, extraction of starch hydrolysis of cellulose for reference.imported a digest models outside the body to pretreat separat the different pre-treatment state, and then use different resin separat solubility state further separated into different forms.Then the shape of its nutrients and the relationship of trace elements under different forms were studied,and the systematic study the content of trace elements in banana pulp, various forms of separation conditions were optimized, and under various forms element content were analyzed.1. Adopt the amylase limited water solution, research distill rate of total and having rate of macromolecule of fibre by amylase of pulp in characteristic course. Come by optimization analyse of enzymatic hydrolysis in banana processing parameters shows:Enzynolysis temperature is 53.32℃, the time 8.67min of enzynolysis, measure 2.13mL enzyme-addedly. It is at most that 8.85% are 4.38 times that of CK This further improved banana processing principle, processing technology and in vitro enzymatic studies of trace elements in reference and development of new product provides a technical reference.2. Studied the feasibility of outside body digestion model, The results showed:import digestion model in banana pulp, methods, overall error is less than 10%, which further indicates that the process of speciation analysis of trace elements in the possible import digestion model. Their recovery rate were conducted, results showed that the recovery rate of 90% over reliable test methods.3. Studied the banana pulp content of nutrient and trace elements at different maturity levels under correlation exists, the results showed that:Banana pulp in the first 6-9 days is the best eating quality; State of the insoluble and maturity of its elements is not very clear trend, but higher content of Cr element shows through after outside body digestion can precipitate certain harmful elements, In the suspended state, under both organic and inorganic states that the best food in banana metals in the highest part of the period, particularly in the organic and inorganic state, the more effectively outlined the food is cooked bananas through the body after digestion can absorption of Ca, Mg, Fe, Mn, Cu and other elements.4. After outside body digestion model study done the treatment, under different separation patterns of trace elements in varying amounts, and the research process conditions were optimized, the optimum conditions in the form of different elements in a systematic analysis of the results showed that:(1) The content of Organic and inorganic elements presented under the following rules:inorganic> organic> insoluble forms> Suspended; its shape and the percentage of the total quality of banana content of elements in more than 60%. Speciation Analysis of trace elements that process with the introduction of outside body digestion model using D101 resin separate the organic and inorganic state feasible, but also shows through outside body digestion of bananas after the separation of different soluble forms may be used to absorb more from.(2) Unstable and steady state levels under the present laws of the various elements is not very obvious, the overall trend tends to:Instability> stable state=insoluble state> suspended state; The total of element compared with content of the elements in the same quality in banana pulp and found that Ca, Zn, Fe extraction efficiency were low, only the efficient extraction of the elements Mg, Shows outside body digestion as pre-treatment conditions and used chelating resin separate stable state and unstable state distill more Mg element, while the other three kinds of elements than those not applicable, or experimental error caused during the extraction operation low efficiency, further research remains to be verified.(3) Under and content of various elements the present is not very clear, the general trend tends to:undissociate state> insoluble State>dissociate State> suspended state; The total of element compared with content of the elements in the same quality in banana pulp and found that except Fe element rate of distill lower, the ratio of other elements were higher than 60%, indicating that outside body digestion as pre-treatment conditions as 732 Resin separate dissociate and undissociate state can be extracted in addition to the three kinds of elements other than Fe, the applicability of the Fe remains to be further verified.