中国农业科学2011，Vol.44Issue(18)：3830-3839,10.DOI:10.3864/j.issn.0578-1752.2011.18.014
喷雾干燥工艺条件对速溶龙眼粉理化特性的影响
Effect of Spray Drying Processing on the Physicochemical Properties of Instant Longan Powder
摘要
Abstract
[Objective] The effects of inlet temperature and hot air rate on the physicochemical properties of instant longan powder were studied. [ Method ] Different inlet temperatures and different hot air rates on the physicochemical properties of instant longan powder were determined, such as moisture content, bulk density, stickiness, dissolution time, isotherms of water sorption, glass transition temperature and microstructure. [Result] With the inlet temperature increased from 160℃ to 190℃ or hot air rate increased from 23.00 m3·h-1 to 29.00 m3·h-1, the moisture content decreased by 25.52% and 39.42%, stickiness declined by 55.75% and 61.11%, but glass transition temperature increased by 8.30 ℃ and 7.07 ℃, dissolution time increased by 1.29 times and 1.47 times, and bulk density increased by 22.87% and 20.15%. And simultaneously there were changes in L*, a*, b*, hue, chroma values, monolayer moisture content and microstructure of the spray-dried powder for all inlet temperature investigated. [Conclusion] It is important to control the parameters of spray drying machine for producing excellent instant longan powder.关键词
喷雾干燥/工艺条件/速溶龙眼粉/理化特性Key words
spray drying/ processing/ instant longan powder/ physicochemical properties引用本文复制引用
苏东晓,邓媛元,廖森泰,张名位,侯方丽,唐小俊,魏振承,张瑞芬,池建伟,张雁..喷雾干燥工艺条件对速溶龙眼粉理化特性的影响[J].中国农业科学,2011,44(18):3830-3839,10.基金项目
NSFC-广东联合基金项目(U0731005)、广东省自然科学基金团队项目(06200586) （U0731005）
