机构地区: 华中农业大学食品科学技术学院
出 处: 《北方园艺》 2011年第14期158-161,共4页
摘 要: 以藕带为原料,研究沸水烫漂和低温烫漂对藕带多酚氧化酶(PPO)、色差、质构等指标的影响。结果表明:藕带沸水烫漂的最佳时间为90s,低温烫漂最佳条件为65℃烫漂、2.5~3.5min;通过对藕带沸水烫漂和低温烫漂后的质地特性比较,发现沸水烫漂对藕带质地的影响较大,低温烫漂(65℃烫漂3.5min)对藕带质构几乎没有影响,低温烫漂更适合藕带速冻前的烫漂处理。 The effect of blanching method and the two important factors,i, e, the temperature and the time of scalding, on hardness and brittleness, colour ( L* ), polyphenol oxidase (PPO) and other attributes of Lotus sprout were researched. The proper technology of pre-treatment for freeze Lotus sprout was obtained. The results showed that the best scalding time by boiling water was 90 s, the best conditions of low-temperature blanching was at 65℃ for 3. 5 min; In comparison the texture properties between high-temperature(100℃, 1.5 min)and low-temperature(65 ℃ ,3.5 min) blanching,it was found that boiling water blanching had a very bad effect on the texture of Lotus sprout, lowtemperature hlanching(65℃, 3. 5 min)showed little influence on the texture of Lotus sprout, low-temperature blanching was a better pretreatment for pre-frozen Lotus sprout.