香芋皮水溶性膳食纤维超声提取及其结构表征  

Ultrasonic-Assisted Extraction and Structural Characterization of Soluble Dietary Fiber from Peel Taro

作　　者：陈秋娟[1,2] 谢微 韦师[1,2] 陈隆志[1] 谢军琳 胡月芳 CHEN Qiujuan;XIE Wei;WEI Shi;CHEN Longzhi;XIE Junlin;HU Yuefang(l.college of materials and chemical engineering,hezhou university,hezhou 542899;guangxi key laboratory of calcium carbonate resources comprehensive utilization,hezhou 542899;research institute of food science&engineering technology,hezhou university,hezhou 542899)

机构地区：[1]贺州学院材料与化学工程学院,贺州542899 [2]广西碳酸钙资源综合利用重点实验室,贺州542899 [3]贺州学院食品科学与工程技术研究院,贺州542899

出　　处：《食品工业》2020年第3期20-24,共5页The Food Industry

基　　金：广西果蔬保鲜和深加工研究人才小高地开放课题(2018GSXGD10,2018GSXGD08);广西高等教育本科教学改革工程项目(2018JGB318);广西自然科学基金面上项目(2017GXNSFAA198274)。

摘　　要：以香芋皮为原料,采用超声法提取水溶性膳食纤维(SDF),并通过红外光谱、扫描电子显微镜、X射线衍射及热重分析其结构。结果表明,超声法提取SDF条件为:料液比1︰40(g/mL)、超声时间30 min、反应温度50℃、反应pH 4.0,此条件下SDF提取率可达6.0%。试验得到的SDF其持水性和持油性较好,具有不规则片状结构,为纤维素Ⅰ型,热稳定性良好。Peel taro was used as raw material to inspect the process condition of preparing soluble dietary fiber(SDF)by ultrasonic-assisted methods.The structure of SDF was characterized by IR,XRD,SEM and TGA.The results showed that the optimum extraction condition was ratio of 1︰40(g/mL),extraction time of 30 min,extraction temperature of 50℃,pH of 4.0.Under this condition,the peel taro soluble dietary fiber was up to 6.0%.The SDF had good water-holding capacity and oil-holding capacity.SDF had irregular sheet structure.It was cellulose typeⅠSDF with thermodynamically stable.

关 键 词：香芋皮 水溶性膳食纤维 超声 结构表征 

分 类 号：TS209[轻工技术与工程—食品科学] TS201.2[轻工技术与工程—食品科学与工程]