不同干燥方式对纳豆纤溶活性影响的研究

STUDY ON THE IMPACT OF NATTO FIBRINOLYTIC ACTIVITY BY DIFFERENT DRYING METHODS

干燥方式对纳豆纤溶活性有直接的影响.通过实验对比了3种干燥方式在不同干燥条件下对纳豆纤溶活性的影响,确定出3种干燥方式中真空冷冻干燥效果最佳.在-55℃、真空度0.08Mbar条件下干燥18～26h,纳豆纤溶活性损失10%～15%;电热鼓风干燥在50～60℃条件下干燥16～32h,纳豆纤溶活性损失25%～50%;电热真空干燥在50～60℃条件下干燥16～32h,纳豆纤溶活性损失40%～60%,实验证明电热鼓风干燥效果总体优于电热真空干燥.

The drying methods have a direct impact on the fibrinolytic activity of natto. By comparing the three drying methods at different drying conditions on the fibrinolytic activity of natto, the vacuum freeze-drying method is determined to be the best one in this experiment. The loss of fibrinolytic activity is 10%-15%. The electric blast drying is better than electric vacuum drying. The electric blast drying methods at the conditions of 50-60 ℃ and 16-32 hours, cause 25%-50% loss of fibrinolytic activity of natto . The electric vacuum drying methods at the conditions of 50-60 ℃ and 16-32 hours, cause 40%-60% loss of fibrinolytic. drying conditions; fibrinolytic activity