辉光放电等离子体降解啤酒中T-2毒素

Study on the degradation of T-2 toxin in beer by glow discharge plasma

目的:探讨辉光放电等离子体(GDP)降解啤酒中T-2毒素的最佳工艺及对啤酒理化指标的影响。方法:通过Box-Behnken方法进行四因素三水平的响应面优化试验,确定啤酒中T-2毒素的最佳降解条件。结果:当放电电压为570 V,作用时间为18 min,放电电流为99 mA,T-2毒素初始质量浓度为8.5μg/mL时,T-2毒素降解效率最高(89.21%);经GDP处理后,啤酒泡持性显著降低(P<0.05),其他指标无明显变化。结论:通过响应面优化模型获得的GDP最佳降解条件可以用于啤酒中T-2毒素的降解;GDP处理能够影响啤酒泡持性,但对其他指标无明显影响。

Objective:Exploring the optimal process for the degradation of T-2 toxin in beer by glow discharge plasma(GDP)and its impact on the physicochemical indicators of beer.Methods:Based on single-factor experiments,a response surface optimization experiment with four factors and three levels was conducted using the Box Behnken method to determine the optimal degradation conditions for T-2 toxin in beer.Results:When the discharge voltage was 570 V,the action time was 18 minutes,the discharge current was 99 mA,and initial concentration of T-2 toxin was 8.5μg/mL.Under the control of these conditions,the degradation efficiency of the T-2 toxin was the highest(89.21%).After GDP treatment,the physical and chemical indicators of beer were tested,and the results showed a significant decrease in beer foam retention(P<0.05),while other indicators remained unchanged.Conclusion:The optimal degradation conditions of GDP obtained by the response surface optimization model are accurate and reliable,which can be used for the degradation of T-2 toxin in beer.GDP can affect the brewing ability of beer,but it will not have a significant impact on other indicators.