| This study compared the British red kidney beans and Shanxi small red kidney beans’main nutritional components and protein composition. Two kinds of red kidney beans to extract the best process conditions of albumin, and albumin molecules. Studied the physical properties of red kidney beans albumin, and by animal studies of weight loss and lipid-lowering effect of two red kidney albumin, The results showed that:1, Large and small red kidney beans’nutrients are mainly starch, followed by protein, but the red kidney bean starch and protein content are respectively 1.01 and 1.11 times than the small red kidney bean, nutritional value slightly higher than the small red kidney beans.2, Red kidney beans are mainly to albumin, far higher than other prot ein components, the second is globulin, and red kidney bean globulin tha n red kidney bean globulin is less 2.97%, close to the other two kinds o f protein content.3, The best extraction technology conditions for albumin of the British red kidney beans and Shanxi small red kidney beans is that, British red kidney beans extraction temperature 45℃, extraction time 3 h, material liquid than 1:30, under the condition of the extraction yield of red kidney bean albumin is 66.81%; Small red kidney bean extract temperature 65℃, extracting time 3 h, the material liquid ratio of 1:30, under the condition of the small red kidney bean protein extraction yield of 57.65%.4, The relative molecular mass distribution of albumin are below 97.4 KD, four banding distribution,19,23,35,43 KD, respectively. Thus, in 25.0 ～25.0 KD,34.0～66.2 KD molecular weight between red kidney beans than small red kidney beans albumin were more a stripe, but between 66.2-97.4 KD, red kidney beans is no stripe, shows that large and small red kidney beans composition differences of albumin.5, The small red kidney beans albumin in pH3.5～5, the dissolution rate were lower than red kidney bean, albumin, large and small red kidney bean protein solubility when pH4.7 lowest, is the large and small red kidney beans dielectric point. Two red kidney bean, foam ability, foam stability, emulsification, emulsifying stability change trend.6, Two kinds of red kidney beans albumin to enhance their thermal stability results for the British red kidney bean albumin its thermal stability is slightly stronger than the small red kidney beans in Shanxi albumin, but time, temperature, pH value of the influence of two kinds of red kidney beans albumin is similar. Sweeteners and thickener for two kinds of red kidney beans albumin thermal stability is enhanced with natural seaweed sugar, glucose, maltose and anthrax gum, acetate starch, CA complex thickener. Enhancement effect of the strongest distribution method for 0.06% anthrax and 8% natural transpose.7, The red kidney beans albumin can significantly reduce the body weight, weight gain and lipid/ratio, so the red kidney beans albumin shows good effect reducing weight, there were significant differences between large and small dose group. But due to objective reasons such as time and space conditions, this test only made two dose group, and the standard method and gap, still need to further improve. |
