马铃薯全粉生产中水分临检方法的研究

Study on rapid determination of water content during processing of dehydrated potato granules

用微波法测定马铃薯蒸煮后产物 ,混合物料和颗粒全粉中水分含量的结果与用测定食品中水分含量的国标法 (GB5 0 0 9 3- 85 )得到的结果相一致。但是微波法将蒸煮后产物、混合物料和颗粒全粉水分的干燥时间由 4h分别减少至 8min和 6min。实验结果表明 ,微波法是特别适用于马铃薯颗粒全粉加工中水分含量测定的一种简单和快速的方法。

Consistent result was got by microwave method as by national standard method (GB5009 3-85) in determination of water content from cooked, mixed and dehydrated potato granules. Compared with standard method, microwave method decreased drying time for water in cooked, mixed potato and in dehydrated potato granules from 4h to 8min and 6min. Data showed that microwave method was simple and rapid and very useful for determination of water content in processing of dehydrated potato granules.