Gautam Bhudha University, Greater Noida, India.
Bhaskaracharya College of Applied Sciences, New Delhi, India.
Int J Biol Macromol. 2018 Mar;108:1348-1356. doi: 10.1016/j.ijbiomac.2017.11.067. Epub 2017 Nov 11.
Effects of gamma irradiation on the physicochemical, rheological and thermal properties of the buckwheat and oat starch were studied. Results revealed that the transition temperature and enthalpy of gelatinization of starch decreased with increase in irradiation dose. Pasting properties (peak, trough, setback, pasting temperature and final viscosity) of both the starches were decreased by gamma irradiation. Gamma irradiation also resulted in the reduction in the per cent crystallinity of the starches. Apparent amylose content and swelling index decreased with increase in dose. However, solubility index was increased by gamma irradiation. No surface fissures were seen in irradiated starches. FTIR spectra pattern did not change by gamma irradiation.
研究了γ辐照对荞麦和燕麦淀粉的物理化学、流变学和热性质的影响。结果表明，随着辐照剂量的增加，淀粉的相变温度和糊化焓降低。γ辐照降低了两种淀粉的糊化特性（峰值、低谷、回生、糊化温度和最终黏度）。γ辐照还导致淀粉的结晶度百分比降低。直链淀粉含量和膨胀指数随剂量的增加而降低。然而，γ辐照增加了溶解度指数。辐照后的淀粉表面没有出现裂缝。γ辐照没有改变 FTIR 光谱模式。
