定温定时法快速检测水果浆软糖半成品干燥失重指标的探讨

Discussion on Rapid Detection of Loss on Drying Index in Fruit Jelly Fudge Semi-finished Products by Fixed Temperature and Timing Method

在水果浆软糖生产过程中对干燥后的半成品在进入拌砂工序前需检测干燥失重指标,干燥失重指标依据SB/T 10021-2017中附录A的方法检测用时较长,无法满足生产实际需求。为了检测能及时配合并指导生产,本实验在真空度为0.09MPa的条件下,采用110℃±2℃真空干燥30min和SB/T 10021-2017中附录A方法(80℃±2℃真空干燥至恒重)同时检测市售水果浆软糖代表性产品芒果浆软糖、番茄浆软糖、脐橙浆软糖干燥后半成品的干燥失重指标,并对检测数据进行差异显著性分析和检测用时进行比较。结果表明:真空度为0.09MPa的条件下,110℃±2℃真空干燥30min和SB/T 10021-2017中附录A方法(80℃±2℃真空干燥至恒重)测定水果浆软糖干燥后半成品的干燥失重指标,两种方法测定精密度是一致的,两种方法测定数据的平均值之间没有显著性差异;采用110℃±2℃真空干燥30min的定温定时法快速测定水果浆半成品干燥失重指标适合现时标准要求,该方法可极大缩短水果浆软糖干燥后半成品干燥失重指标的检测时间,保证检测及时并配合指导生产,满足生产的实际需求。

During the production of fruit jelly fudge,the drying weight loss index of the dried semi-finished products shall be tested before entering the sand mixing process.The drying weight loss index takes a long time according to the method in Appendix A of sb/T 10021-2017,which cannot meet the actual production needs.In order to detect that it can be combined in time and guide production,under the condition of vacuum degree of 0.09mpa,this experiment uses 110℃±2℃vacuum drying for 30min and the method in Appendix A of sb/T 10021-2017(80℃±2℃vacuum drying to constant weight)to detect the drying weight loss index of semi-finished products after drying of representative products of fruit pulp fudge on the market,mango pulp fudge,tomato pulp fudge and navel orange pulp fudge,The difference significance of the test data was analyzed and the test time was compared.The results show that:under the condition of vacuum degree of 0.09mpa,drying at 110℃±2℃for 30min and the method in Appendix A of sb/T 10021-2017(vacuum drying at 80℃±2℃to constant weight)to determine the drying weight loss index of semi-finished fruit pulp soft candy after drying,the precision of the two methods is consistent,and there is no significant difference between the average values of the two methods;The constant temperature and timing method of 110℃±2℃vacuum drying for 30min is used to quickly determine the drying weight loss index of semi-finished products of fruit pulp,which is suitable for the current standard requirements.This method can greatly shorten the detection time of drying weight loss index of semi-finished products after fruit pulp fudge drying,ensure timely detection,cooperate with and guide production,and meet the actual needs of production.