摘要
以褐藻糖胶沉淀为原料,采用热风干燥、真空干燥和冷冻干燥三种工艺,研究真空干燥和热风干燥的干燥速率曲线,冷冻干燥过程的工艺参数;分析了样品干燥后褐藻糖胶含量以及物理特征的变化。结果表明,冷冻干燥较真空干燥和热风干燥得到的产品性能好,并较好地保持样品理化性质,但冷冻干燥过程费时长,耗能多。
Fucoidan crude extract as raw material,three different techniques such as hotair drying,vacuum drying and freeze-drying were discussed in this experiment. The drying rate of hotair drying and vacuum drying were tested,the technology paremeter of freeze-drying was obtained. The content of sugar in fucoidan and characteristics of the dried sample by different drying techniques were analyzed. The results showed that the sugar content of the dried sample by freeze-drying was better than that by hotair drying and vacuum drying,the quality of sample was better preserved. But the time was extend and energy consumption was added in process of freeze-drying.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第2期92-94,97,共4页
Science and Technology of Food Industry
基金
国家科技计划重点项目
教育部新世纪优秀人才计划(07-0559)
上海市东方学者计划
