甜菊糖在乙醇-水混合溶剂中的常压比热测定与关联  

MEASUREMENT AND CORRELATION OF CONSTANT-PRESSURE SPECIFIC HEATS OF STEVIOSIDES IN ETHANOL-WATER MIXED SOLVENT

作　　者：王彦飞[1] 李福涛[1] 付存然[1] 

机构地区：[1]天津科技大学海洋科学与工程学院,天津市海洋资源与化学重点实验室,天津300457

出　　处：《河南工业大学学报（自然科学版）》2013年第5期44-48,共5页Journal of Henan University of Technology：Natural Science Edition

基　　金：天津科技大学引进人才项目(20080416)

摘　　要：利用差示量热扫描仪(DSC)测定了甜菊糖在乙醇-水混合溶剂中的常压比热.将三元体系比热按理想溶液混合处理,并采用似二元正态分布的钟罩函数拟合误差,取得了较好的拟合效果.该模型简洁,可用于三元体系的比热拟合,具有较好的实用价值.We measured the constant-pressure specific heats of steviosides in ethanol-water mixed solvents by the DSC. Taking a ternary system as an ideal mixed solution, we carried out error fitting by using a bell-like function similar to bivariate normal distribution, and obtained a better fitting effect. The model is simple and practical, and can be used for fitting specific heats of ternary system.

关 键 词：甜菊糖 三元体系 比热 测定与关联 钟罩函数 

分 类 号：TS201.2[轻工技术与工程—食品科学]