Abstract:Main research progress data for physiology mechanism of chlorophyll blanching and processing technique for preserving green color are analysed. The result sho ws: formation of phaeophytina,b，pyroa,b and phaeophytina，b made the gree n color changing. At present, the way for preserving color is to stable green co lor or adding green color. In a long run, prospect for chlorophyll research is a s following: 1)Study of blanching of chlorophyll physiology mechanism should be de eped; 2) Method of adding iron needs a national standard; 3) Development biologi cal technique will provide a new field in preserving green color.

Abstract:The environmental decision model is built in the process of analysing data inventory and assessing the effect by fuzzy-AHP method based on the international standard series ISO14000. The model can carry on quantitative analysis on life cycle environmental impact by solving the weight of environmental impact factor when the data inventory of production life cycle environmental impact is attained, and then the indicators, which assess the degree of environmental friendship, are realized from qualitative to quantitative on the basis of the analysis result.

Abstract:The optimum conditions of extracting flavonoids in the skin of phaseolu s radiatus were investigated by using the orthogonal design. The results showe d that at 70 ℃, 6∶1 of 30% ethanol to the skin of the phaseolus radiatus weigh t ratio, extraction for 2 times and 2 h for each time were optimal. Under 510 nm, we ado pted the method of Al(NO3)3 comparing the colour and put rutin as per the s tandard to calculate the content of flavonoids in the skin of phaseolus radiatus , the average content of it is 1.459%.