Effects of ball-milling treatment on particle size distribution, specific surface area, calcium extraction rate and soluble protein content of sliver carp bone powder were studied.

Study on increasing extraction rate for potato starch;

Discussion and study on influential factors of extraction rate of RNA by ammonolysis

Study of the impact of pretreatment on arecoline extraction rate

The effects of different temperature, time and the ratio of solid to solution on the extraction yield of Ganoderma lucidum polysaccharides (GLP) were optimized with response surface methodology.

The results showed that the stability of pure solanesol is not very good,washing of the tobacco leaves is good to improving the quality and extraction yield of the tobacco extraction,the .

5g/L,and the extraction yield of protein was 63.

Analysing the water extraction and alcohol precipitation, the technologies of ethylalcohol circulating and ultrasonic extracting these three different methods, all the results showed that: the yield is higher with the technologies of ethylalcohol circulating than the others, and it is simple and efficient.

Material balances calculation and track testing of ephedrine production in a Xinjiang pharmaceutical factory were carried out with the results showing that the total yield was 41.

The effects of alcohol concentration, extraction time, extraction temperature, material-solvent ratio, and their effects on the yield of total polyphenols were studied.