葛渣膳食纤维的过氧化氢改性工艺研究

为研究过氧化氢对葛渣膳食纤维的改性作用,以葛根加工淀粉后的残渣为原料,采用单因素与正交试验,以可溶性膳食纤维得率以及不溶性膳食纤维膨胀力为指标,得出了过氧化氢改性制备葛渣膳食纤维的最佳工艺条件,即H_2O_2体积分数0.3%,pH为12,温度为90℃,时间为75 min,得到可溶性膳食纤维得率最高为52.16%,不溶性膳食纤维膨胀力为7.01 m L/g。

Modification Technology of Pueraria Residue Dietary Fiber by Hydrogen Peroxide

In order to exp1ore the modification effect of hydrogen peroxide on dietary fiber of pueraria residue. The pueraria residue after starch extraction was se1ected as raw materia1, by sing1e factor and orthogona1 experiments, and with the yie1d of so1ub1e dietary fiber (SDF) and the swe11ing abi1ity of inso1ub1e dietary fiber (IDF) as indicators, the optima1 techno1ogica1 conditions for the modification were as fo11ows: H2O2 concentration 0.3%, pH va1ue 12, temperature 90℃, time 75 min. Un-der the optimum conditions, the yie1d of so1ub1e dietary fiber was 52.16%, and the swe11ing abi1ity of inso1ub1e dietary fiber was 7.01 mL/g.