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当前位置: 首页 > 文章 > 红薯渣中不溶性膳食纤维提取工艺的优化 山西农业大学学报(自然科学版) 2016,36 (9) 673-677
Position: Home > Articles > Research on extraction and property of the water insoluble dietary fiber from sweet potato Journal of Shanxi Agricultural University(Natural Science Edition) 2016,36 (9) 673-677

红薯渣中不溶性膳食纤维提取工艺的优化

作  者：
李泽珍;狄建兵;李治
单  位：
山西农业大学食品科学与工程学院
关键词：
红薯渣;不溶性膳食纤维;提取;持水力;溶胀性
摘  要：
[目的]优化红薯渣中不溶性膳食纤维的提取工艺,以提高红薯渣的综合利用。[方法]以红薯渣为原料,利用碱化学法制备不溶性膳食纤维,研究料液比、碱浓度、提取时间和提取温度对不溶性膳食纤维提取率的影响,由正交实验确定红薯渣中不溶性膳食纤维的最佳提取工艺。[结果]在料液比为1∶6,碱浓度为10.0g·L~(-1),提取温度为75℃,提取时间为45min的条件下,红薯渣中不溶性膳食纤维的提取率为70.25%,持水力为4.16g·g~(-1),溶胀性为20.6mL·g~(-1)。[结论]碱化学法可有效提取红薯渣中的不溶性膳食纤维。
译  名：
Research on extraction and property of the water insoluble dietary fiber from sweet potato
作  者：
Li Zezhen;Di Jianbing;Li Zhi;College of Food Science and Engineering,Shanxi Agricultural University;
关键词：
Sweet potato residue;;The water insoluble dietary fiber;;Extraction;;Water holding;;Expansibility
摘  要：
[Objective]In order to propel comprehensive utilization of sweet potato residue,the extraction process of the water insoluble dietary fiber from sweet potato residue was studied.[Methods]The alkali solution was used to extract the water insoluble dietary fiber from sweet potato residue.With the solid-liquid ratio,alkali concentration,extraction time and extraction temperature for single-factor experiments,the best extraction condition of the water insoluble dietary fibre was determined by orthogonal experiment。[Results]The results showed the best extraction condition of the water insoluble dietary fibre was the ratio of material to water 1∶6,alkali concentration 10.0g·L~(-1),the extraction temperature 75 ℃,the extraction time 45 min.The extraction ratio of the water insoluble dietary fiber was 70.25%.The water holding was 4.16g·g~(-1),and the expansibility was 20.6mL·g~(-1).[Conculusion]Alkali extraction of the water insoluble dietary fiber from sweet potato residue was effective.

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