| Phyllanthus emblica L.is an important wildlife resource in the southwest.Early emblica fruit taste is sour,and aftertaste is sweet and refreshing.It has role of heat-clearing,detoxifying,and health care and so on.Emblica is mainly used in the production of fruit beverage,powder and other products.This processing waste that contains part of soluble sugars,vitamins,minerals and fiber have rich nutrients and high use value.Because of the higher moisture content,residue will spoil within a few days and cause serious pollution to the surrounding environment,so dry is a necessary pretreatment to residue.Countries attached great importance to comprehensive utilization of residue and formed of scale such as preparation of dietary fiber(DF)and ferment.This process could improve fruit value-added and reduce pollution of the environment.My project is based on the comprehensive utilization of natural products.(1)Drying of emblica residue.In the production process,dried emblica residue which weight is reduced could easy to transport and research.Conclusion: safety water content of emblica is 10.25%,residue could be stored below it.In four kinds of drying methods,fluidized-bed drying method used for the shortest time,get the minimum hardness of emblica residue,the surface of the product is porous.Thermodynamic analysis showed that Increasing drying temperature or increasing drying time can destroy the structure and increases the crystallinity of emblica residue.Emblica residue drying is a process with the speed reduction which is controlled by internal moisture diffusion.The average activation energy Ea of emblica residue is 26.74kJ/mol.Fitting analysis of test data,the three times model which is the highest fitting model could be used in daily production.(2)Extraction of emblica DF.Alkaline method are selected to extract emblica soluble dietary fiber(SDF),and it physical and chemical properties are characterized.Three physical treatment methods including ultrahigh-pressure,microwave and ultrasonic are used to modify DF.Modified DF showed the ability to improve disease and assess the healing.Nano-clusters which could form the film on the surface of protein are prepared by crosslinking technique of SDF and tannin.Conclusion: This study had designed the best condition to exact PESDF.Actual yield value was 50.5%.PESDF had more active group than PEIDF,so PESDF showed significantly strong ability to prevent cancer,reduce cholesterol and blood press.This study showed that physically modifications of PEDF could improve its functional properties.Solubility,OHC,GDRI and CEC was significantly improved by ultrasonic treatment.WHC,SWC and glucose adsorption capacity was significantly increased by microwave treatments.So ultrasonic and microwave modified PEDF had effect on glucose breakdown or adsorption reduction and thus can avoid blood glucose level increase.In this work,we successfully developed a facile route to prepare a kind of protein protective films.The SDF-tannin self-assembly film which thickness could be controlled by the concentration of tannin showed properties of nontoxic and broad-spectrum of antimicrobial.The evidence in favor of a future role for SDF-tannin mediating alcohol injury and protein food fresh keeping were indicated in the study.This work provided a novel strategy to develop the application of SDF and tannin on new field.(3)Emblica residue fermented wine.Emblica residue is regarded as raw material.On saccharification and fermentation process test,respectively,the physic-chemical index of fermentation wine is obtained.Conclusion: The results show that The best Reducing sugar value is 10.36g/L.Alcohol yield value is 1.52%.Emblica residue fermented wine,which meet the fruit wine standard,have rich nutrient and unique flavor,could be used for actual production. |
