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田星,曹丽杰,兰中贇,肖淑婷,于震强,谢梦洲.沅江芦笋膳食纤维提取工艺优化及其特性[J].湖南中医药大学学报英文版,2018,38(11):1336-1340.[Click to copy
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| 沅江芦笋膳食纤维提取工艺优化及其特性 |
| 田星,曹丽杰,兰中贇,肖淑婷,于震强,谢梦洲 |
| (湖南中医药大学 药学院, 湖南 长沙 410208;湖南省药食同源功能性食品工程技术研究中心, 湖南 长沙 410208) |
| 摘要: |
| 目的 以沅江芦笋为实验原料，探寻其可溶性膳食纤维（soluble dietary fiber，SDF）最佳提取工艺，研究SDF的理化特性。方法 使用酶解法对沅江芦芛SDF进行提取，利用Box-Behnken中心组合设计原理进行响应面设计优化提取工艺参数，并考察沅江芦笋SDF的理化性质。结果 沅江芦笋SDF得率最佳酶解提取工艺条件为：料液比1：15，酶解温度50℃，酶用量0.9%，pH值4.5，酶解时间2.0 h，在此工艺条件下沅江芦笋SDF得率为（5.20±0.05）%，各因素对SDF得率的影响大小顺序为酶解时间>pH值>酶用量。各理化特性为：持水力1.9 g/g，溶胀性1.02 mL/g，水溶性86.3%，持油力2.15 g/g。结论 本实验使用响应面优化酶法提取沅江芦笋SDF工艺，产品特性良好。 |
| 关键词: 沅江芦笋 可溶性膳食纤维 响应面 酶解法 理化特性 |
| DOI：10.3969/j.issn.1674-070X.2018.11.026 |
| Received:May 15, 2018 |
| 基金项目:2016年湖南省教育厅一般项目（16C1244）；2017年湖南中医药大学大学生创新课题（10220001019052） |
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| Optimization of Extraction Process for Dietary Fibers from Yuanjiang Asparagus and the Physical and Chemical Properties of Dietary Fibers |
| TIAN Xing,CAO Lijie,LAN Zhongyun,XIAO Shuting,YU Zhenqiang,XIE Mengzhou |
| (School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China;Hunan Engineering Research Center of Drug and Food Homology Functional Food, Changsha, Hunan 410208, China) |
| Abstract: |
| Objective To investigate the optimal extraction process for soluble dietary fibers (SDF) with Yuanjiang asparagus as the experimental material and the physical and chemical properties of SDF. Methods Enzymolysis was used for the extraction of SDF from Yuanjiang asparagus, and Box-Behnken central composite design was used for response surface design to optimize extraction parameters. The physical and chemical properties of SDF from Yuanjiang asparagus were measured. Results The optimal extraction parameters of SDF from Yuanjiang asparagus with the highest yield were a solid-liquid ratio of 1:15, a temperature of 50℃, an amount of enzyme of 0.90%, a pH value of 4.5, and an enzymolysis time of 2.0 hours. These process parameters achieved a yield of SDF of (5.20±0.05)%. Enzymolysis time had the greatest influence on the yield of SDF, followed by pH value and the amount of enzyme used. As for physical and chemical properties, SDF had a water-holding capacity of 1.9 g/g, a swelling property of 1.02 ml/g, a water solubility of 86.3%, and an oil-holding capacity of 2.15 g/g. Conclusion The response surface design is used to optimize the process of enzymolysis for the extraction of SDF from Yuanjiang asparagus, and SDF obtained has good physical and chemical properties. |
| Key words: Yuanjiang asparagus soluble dietary fiber response surface design enzymolysis physical and chemical properties |
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