作　　者： ; ; ;

机构地区： 山东理工大学农业工程与食品科学学院

出　　处： 《农业工程学报》 2008年第5期245-249,共5页

摘　　要： 该文在考察超声波功率、超声波辅助提取时间等单因素对大豆低聚糖得率影响的基础上,选取超声波辅助提取时间、液料比和乙醇浓度进行三因素三水平的响应曲面试验,以确定超声波辅助提取经挤压膨化大豆粕中低聚糖的最佳条件和数学模型。并以超声波辅助提取未挤压膨化大豆、挤压膨化未超声波辅助提取和未挤压膨化未超声波辅助提取的大豆中低聚糖得率作为对照,以确定挤压膨化技术和超声波辅助提取技术对大豆低聚糖提取的影响。超声波辅助提取大豆低聚糖的最佳条件为乙醇浓度为31.3%,超声波辅助提取时间为34 min,液料比为20.4 mL/g,得率为11.95%,与未挤压膨化未超声波辅助提取对照试验相比提高了50.31%。挤压膨化技术处理和超声波技术有利于大豆低聚糖的提取。 In order to optimize ultrasonic-assisted extraction technology for the extraction of oligosaccharide from defatted soybean meal after extrusion, on the basis of single factor experiments, the effects of operating conditions, such as ultrasonic-assisted extraction time, ratio of solution to material and ethanol concentration on the yield of oligosaccharide were analyzed by response surface methodology. The optimized conditions of ultrasonic-assisted extraction are as follows： ultrasonic treatment time 34 min, ratio of solution to material 20.4 mL/g, and ethanol concentration 31.3%. Under the above-mentioned conditions, the actual yield of target oligosaccharide was 11.95%, increased by 50.31% compared with the control without ultrasonic assisted extration and extrusion which is in good agreement with the predicted yield. The above mentioned extrusion technology is in favor of oligosaccharide extraction, and ultrasonic assisted extraction method is better than ethanol extraction method in terms of yield and time.

关 键 词： 超声波辅助提取 挤压膨化 低聚糖 脱脂大豆饼粕

领　　域： [轻工技术与工程] [轻工技术与工程] [轻工技术与工程] [轻工技术与工程]