Under the optimum enzymatic process conditions,compound enzyme(petinase:cellulose=6∶1)0.007 5 %,water 40 %,temperature 55 ℃,time 50 min,pH 3.0,green pepper juice yield could reach 74.4 %,13.8 % higher than using pectinase alone,51 % higher than the control.
In this paper, the optimum condition of supercritical CO2 extraction of ginger essential oil was investigated with orthogonal design. The optimum process conditions obtained are as following: extraction pressure 20MPa, work temperature 40℃, extraction time: 90min.
On basis of single factor experiment,the orthogonal trial was used in optimization of technological parameters,the optimum technological condition was 5 mL/g,2.5 h and 65℃,under which the extraction rate could be high as 98.17%.
On principle of statistical evaluation, these factors that mentioned above, have no dominate effects on nitrogen content at the degree of confidence a =0.05. According to the extraction performance, polysaccharide yield and nitrogen content, the optimized technological condition of extraction is 0.6 mol/L NaOH, 2 hours dissolve, pH 8.0 and 1.5 times of ethanol(95%).
The technological condition of freeze drying diced chicken meat was determined,and the influence of hot burn,preliminary freeze rate, and tempreature of water catcher on the quality of products and drying time were discussed.
According to these results, the perpendicular experiments are designed. The most optimal process condition is as follows: the power of microwave 800W, the content of water 36%, the time of radiation 5.5 min, the content of HCl 0.105%(w/w), the content of stearic acid 3%(w/w). The DS of the product is 0.008940,RE is 52.33%.
It was found that the character of conductivity decay in a photoreceptor after positive or negative corona charging of its outer surface depended on the technological conditions of substrate pretreatment.
Using this method makes it possible to substantiate the choice of the optimal design of contact units in cascade pneumatic classifiers for various technological conditions.
Phase composition of Ti-C Films obtained under the technological conditions of diamond formation at a carbon content of above 50
Thin (6-12 nm) epitaxial MnAs films were MBE-grown on Si(111) substrates under different technological conditions.
The electrophysical and photoelectric properties of the films depend on the technological conditions of growth and are determined by states at intergrain boundaries.