本文已被：浏览 687次 下载 494次
投稿时间：2022-11-01
投稿时间：2022-11-01
中文摘要: 以西梅为原料，采用超声辅助酶法提取西梅可溶性膳食纤维（soluble dietary fiber，SDF），通过单因素和响应面试验优化西梅SDF的提取工艺，测定西梅SDF的持水力、持油力、膨胀力、溶解性以及抗氧化活性。结果表明，超声辅助酶法提取西梅SDF的最优工艺条件为料液比1∶23（g/mL）、超声时间70 min、复合酶添加量2.0%，该条件下西梅SDF提取率为14.15%；西梅SDF的持水力、膨胀力、持油力、溶解性分别为5.73 g/g、9.76 mL/g、3.54 g/g、76.31%。西梅SDF抗氧化活性测定结果表明，西梅SDF具有较强的抗氧化活性，在浓度为2.0 mg/mL时，西梅SDF对DPPH·、ABTS+·和·OH清除率分别为66.53%、78.42%、71.11%。以上结果表明，西梅良好的理化特性及抗氧化活性使其具有成为功能性食品的潜力。
Abstract:The soluble dietary fiber（SDF）in prunes was extracted by ultrasonic-assisted enzymatic method.The extraction process of SDF was optimized by single factor test and response surface methodology.The water holding capacity，oil holding capacity，swelling capacity，solubility and antioxidant activity of SDF were determined.The results showed that the optimal conditions of ultrasound-assisted enzymatic extraction of SDF were as follows：solid-liquid ratio 1 ∶23（g/mL），ultrasonic time 70 min，and complex enzyme addition 2.0%.Under these conditions，the extraction yield of SDF was 14.15%，with the water holding capacity，swelling capacity，oil holding capacity and solubility were 5.73 g/g，9.76 mL/g，3.54 g/g and 76.31%，respectively.SDF had strong antioxidant activity，and at the mass concentration of 2.0 mg/mL，its scavenging rates of DPPH·，ABTS+·and·OH were 66.53%，78.42% and 71.11%，respectively.These results indicated that prunes have the potential to be a functional food additive for the good physicochemical properties and antioxidant activity.
文章编号：202309018 中图分类号： 文献标志码：
基金项目:新疆生产建设兵团第一师阿拉尔市科技计划项目（2021SP01）
| 作者 | 单位 |
| 沈康1，2，贺灵灵3，晁增友3，王伟华1，2* | 1.塔里木大学食品科学与工程学院，新疆阿拉尔 843300；2.南疆特色农产品深加工兵团重点实验室，新疆阿拉尔 843300；3.阿拉尔市十一团蜜园果品农民专业合作社，新疆阿拉尔 843300 |
| Author Name | Affiliation |
引用文本：
津ICP备20000603号-1