干燥方式对互花米草植物盐提取率及品质特性的影响
Effect of Drying Method on Phyto-salt Extraction Rate and Quality Characteristics of Spartina alterniflora
颜宁 1刘苏慧 1申发 1王若菲 1于洋 2杨继松3
作者信息
- 1. 鲁东大学资源与环境工程学院,山东 烟台 264039
- 2. 鲁东大学水利工程学院,山东 烟台 264039
- 3. 鲁东大学滨海生态高等研究院,山东 烟台 264039
- 折叠
摘要
本文采用真空冷冻干燥(VFD)、鼓风加热干燥(HAD)、煮沸蒸发干燥(BED)3 种不同干燥方式制备互花米草植物盐,分别从互花米草植物盐的提盐量、感官品质、复水性、溶解时间、微观结构等方面对互花米草植物盐干燥特性及品质进行对比、分析和评价.结果表明:VFD处理下的互花米草提取液提盐率为 17.5%,高于BED处理(15%)和HAD处理(16.5%);不同干燥方式处理下,综合色泽、外观形态、气味、滋味、杂质方面的感官评价分析得出VFD处理更佳;VFD处理得到的植物盐复水程度最高,达到82%,溶解于水的时间最短;经电子显微镜观察结构显示,VFD处理后的植物盐颗粒更细小,结构更疏松,而其他两种干燥方式微观结构相近.综合分析可知,VFD是制备互花米草植物盐较适宜的方法.
Abstract
Vacuum freeze drying(VFD),hot air drying(HAD)and boiling evaporation drying(BED)were used to prepare phyto-salt from Spartina alterniflora.The drying characteristics and quality of phyto-salt were analyzed and evaluated from salt extraction,sensory quality,rehydration,dissolution time and microstructure.The results showed that the salt extraction rate of S.alterniflora through VFD treatment was 17.5%,which was higher than that though BED treatment(15%)and HAD treatment(16.5%).Under different drying methods,the sensory evaluation analysis of color,appearance,odor,taste and impurities showed that VFD treatment was the best.The rehydration degree of phyto-salt obtained by VFD treatment was the highest,up to 82%,and the dissolution time in water was the shortest.Electron microscopy showed that VFD treated phyto-salt particles were smaller and more porous,while phyto-salt under the other two drying methods had similar microstructure.Above all,VFD is a suitable method for preparing S.alterniflora phyto-salt.
关键词
植物盐/干燥方式/干燥特性/互花米草/真空冷冻干燥Key words
phyto-salt/drying method/drying characteristics/Spartina alterniflora/vacuum freeze-drying引用本文复制引用
基金项目
山东省自然科学基金青年基金(ZR2022QD093)
出版年
2024
NETL
NSTL
万方数据