超微化豆渣膳食纤维对BALB/c 小鼠血清胆固醇及甘油三酯的影响

以豆渣为原料提取豆渣膳食纤维(ODF)，采用超微粉碎干法粉碎及动态高压微射流进行湿法粉碎分别得到超微粉碎处理的膳食纤维(D-ODF)、微射流处理的膳食纤维(W-ODF)，未经超微化处理的样品作为对照(C-ODF)。观察超微化前后膳食纤维的主要理化性质的变化，并研究其对BALB/c 小鼠血清中总胆固醇(TC)、高密度胆固醇(HDL-C)及甘油三酯(TG)水平的影响。结果表明，W-ODF 样品的粒度比D-ODF 组降低更为显著，且膨胀力、持水力及可溶性膳食纤维含量均高于D-ODF 及C-ODF。灌胃28d 后，D-ODF 组小鼠的TC 水平较灌胃前有所下降，对照组及W-ODF 组TC 水平有所升高，但各组HDL-C 的水平均有所升高；W-ODF 组中HDL-C/TC 提高了21.2%，显著高于C-ODF(4.8%)和D-ODF 组(11.4%)；对照组TG 水平较灌胃前有所升高，而D-ODF 组和W-ODF 组分别降低了13.5% 和29.2%；D-ODF、W-ODF 组的TG 水平较对照组分别降低了17.9%(P ＜ 0.05)、41.0%(P ＜ 0.05)，后者效果更为显著。

Effect of Ultra-micronized Okara Dietary Fiber on Serum Cholesterol and Triglyceride Levels in BALB/c Mice

Dietary fiber was separated from okara,and then micronized through dry grinding method using ultra-micro pulverizer and wet granulating method using dynamic high pressure microfluidization,respectively.The samples were collected as D-ODF and W-ODF.Un-micronized dietary fiber(C-ODF) was the control diet.The changes of major physical and chemical properties before and after micronization were examined and effects of these samples on levels of serum total cholesterol(TC),high-density lipoprotein cholesterol(HD...