摘要
将鸡油进行高压静电处理加热(处理组)和普通加热(对照组),测定其过氧化值、酸价、丙二醛含量和色差等指标的变化,研究高压静电处理加热对鸡油理化特性的影响。结果表明:与普通加热处理鸡油相比,高压静电处理加热鸡油的过氧化值、酸价和丙二醛含量均相对较低(P<0.05);不同加热时间和不同加热方式之间鸡油的亮度值、红度值和黄度值均无明显的变化规律。高压静电处理加热能有效抑制鸡油的氧化和酸败,提高其热稳定性,延缓其食用品质的劣化。
The effect of high-voltage electrostatic field(HVEF) treatment on the physicochemical properties of chicken fat was studied. After being subjected to HVEF treatment or ordinary heating(control), changes in the peroxide value, acid value, malondialdehyde(MDA) content and color parameters of chicken fat were determined. The results showed that the peroxide value, acid value and MDA level of HVEF treated samples were lower than those of control samples(P < 0.05). All three color parameters showed irregular changes with heating time and methods. To sum up, HVEF could pronouncedly inhibit the oxidation and rancidity of the fat, improve its thermal stability and delay quality deterioration.
引文
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