高压二氧化碳保鲜双孢蘑菇的工艺优化

为了优化高压二氧化碳(high pressure carbon dioxide,HPCD)保鲜双孢蘑菇的工艺,在单因素实验基础上,采用响应面法分析HPCD处理压力、处理时间和处理温度对双孢蘑菇硬度和颜色的影响并对其进行优化。结果表明,HPCD保鲜双孢蘑菇的最佳工艺条件为:处理压力0.3 MPa,处理时间3 min,处理温度17℃;与对照相比,该条件HPCD处理后的双孢蘑菇可以更好的保持其硬度和颜色,低温贮藏8 d后的硬度为191.7 N(提高了18.85%),褐变指数(BI)为33.13(降低了16.80%)。因此,HPCD技术可以应用于双孢蘑菇的贮藏保鲜,具有良好的前景。 

Optimization of high pressure carbon dioxide treatment on button mushroom( Agaricus bisporus) preservation

In order to optimize the high pressure carbon dioxide( HPCD) treatment on button mushroom( Agaricus bisporus) preservation,the effects of treatment pressure,time and temperature on the firmness and color of button mushroom were studied.Moreover,on the basis of single- factor test,response surface methodology was used to optimize the conditions of button mushroom preservation. The results showed that the optimum HPCD treatment conditions of treatment pressure,time and temperature were 0.3 MPa,3 min and 17 ℃,respectively. Under these conditions,the firmness and color of button mushroom can be maintained better than control. After storage 8 d at low temperature,the firmness and BI of button mushroom were 191.7 N( increased by 18.85%) and 33.13( decreased by 16.80%),respectively.Thus,HPCD technology can be applied to button mushroom preservation which has a good prospect.