Effect Of Microwave And Ultrasound Extraction On Emulsifying Properties Of Soybean Hull Polysaccharides And Design Of The Factory

Soybean hull polysaccharides have gel and emulsifying properties.At present,the research on soybean hull polysaccharides at home and abroad is limited to extraction,separation and preliminary physicochemical properties analysis,lack of extraction methods for their properties,product standardization,factory design and so on.In this study,the effects of microwave,ultrasound and microwave-assisted ultrasonic extraction on the emulsifying properties of soybean hull polysaccharides were investigated.The quality standard of soybean hull polysaccharides and the industrial design of polysaccharides were explored.The main results of this study are as follows:1.Theeffectofmicrowave-assistedextractiononsoybeanhull polysaccharides was investigated,it was found that the factors affecting the emulsifying properties of soybean hull polysaccharides emulsion were:microwave power,microwave time and ratio of material to liquid.The optimum conditions of microwave extraction for emulsifying and emulsifying stability of soybean hull polysaccharides were obtained by response surface test:microwave power 480 W,microwave time 35 min,solid-liquid ratio 1:20(g/mL).Under these conditions,the emulsion EAI is 46.15 m~2/g and the Zeta potential absolute value is 34.3 mV.Response surface optimization of ultrasonic extraction of soybean hull polysaccharides.showed that the influence of ultrasonic power was greater than that of ultrasonic temperature and time.The emulsifying property of polysaccharides extracted by ultrasonic wave is higher than that of polysaccharides extracted by ultrasonic wave.The ultrasonic power is 500 W,the ultrasonic time is10 min,and the ultrasonic temperature is 70 C.Under these conditions,the EAI of the emulsion was 33.7 m~2/g and the Zeta potential was-19.6 mV.In terms of extraction rate,the highest extraction rate was 13.5%.2.The formulation of soybean hull polysaccharides standard mainly refers to the structure,technical elements and expression requirements stipulated in GB/T15624.1-2003 Guidance for Standardization Work Part 1:Standard Structure and Compilation Rules.This standard stipulates the classification,characteristic and quality indexes of soluble soybean hull polysaccharides,and refers to the hygienic standards of soybean products and sets hygienic standards according to the actual data.3.The soybean hull polysaccharides production line designed in this paper is suitable for microwave-assisted and ultrasonic-assisted extraction process.After comprehensive consideration of raw materials and transportation costs,site selection is carried out through material constant calculation and energy balance.Workshop layout and general layout design are carried out respectively according to process flow and site geographical conditions.