吉林农业大学学报
吉林農業大學學報
길임농업대학학보
JOURNAL OF JILIN AGRICUL TURAL UNIVERSITY
2009年
6期
777-780
,共4页
方丽%王朝辉%姜宏宇%林小秋%闵伟红
方麗%王朝輝%薑宏宇%林小鞦%閔偉紅
방려%왕조휘%강굉우%림소추%민위홍
真空冷冻干燥%方便米饭%理化性质
真空冷凍榦燥%方便米飯%理化性質
진공냉동간조%방편미반%이화성질
vacuum freeze drying%instant rice%physicochemical property
采用电子扫描显微镜(SEM)和X-射线衍射图谱法,对热风干燥和真空冷冻干燥处理的方便米饭的微观结构和结晶结构进行分析.结果表明:真空冷冻干燥法制备的方便米饭表面形成蜂窝状的均匀孔隙结构,纹理比较有规则,无裂痕,同时结晶度较低;而热风干燥的方便米饭结构紧密,无明显空隙,淀粉结晶度较高.
採用電子掃描顯微鏡(SEM)和X-射線衍射圖譜法,對熱風榦燥和真空冷凍榦燥處理的方便米飯的微觀結構和結晶結構進行分析.結果錶明:真空冷凍榦燥法製備的方便米飯錶麵形成蜂窩狀的均勻孔隙結構,紋理比較有規則,無裂痕,同時結晶度較低;而熱風榦燥的方便米飯結構緊密,無明顯空隙,澱粉結晶度較高.
채용전자소묘현미경(SEM)화X-사선연사도보법,대열풍간조화진공냉동간조처리적방편미반적미관결구화결정결구진행분석.결과표명:진공냉동간조법제비적방편미반표면형성봉와상적균균공극결구,문리비교유규칙,무렬흔,동시결정도교저;이열풍간조적방편미반결구긴밀,무명현공극,정분결정도교고.
By adopting electronic scanning microscope (SEM) and X-ray diffraction atlas method, microscopic and crystal structures of instant rice treated with hot air drying and vacuum freeze drying were analyzed. The results showed that: honeycomb-shape hole structure forms on the surface of the instant rice made by vacuum freeze-drying, and its texture is more regular. It does not have fissure and its crystallini-ty is lower. On the contrast, the structure of instant rice made by hot air drying is compact, it has no obvious hole structure, and its starch crystallinity is higher.