酶法和碱法提取对胡麻渣可溶性膳食纤维抗氧化性的影响
Effects of Enzymatic and Alkaline Extraction on Antioxidant Activity of Soluble Dietary Fiber from Flax Residue
DOI: 10.12677/HJAS.2019.98092, PDF,    科研立项经费支持
作者: 郭玉如, 杨 靖, 徐建国*：山西师范大学食品科学学院，山西 临汾；仝文玲：山西师范大学生命科学学院，山西 临汾
关键词: 胡麻渣；可溶性膳食纤维(SDF)；碱法；酶法；抗氧化性；Flax； Soluble Dietary Fiber (SDF)； Enzyme Treatment； Alkali Treatment； The Antioxidant Activity
摘要: 主要研究酶法和碱法两种不同处理对胡麻可溶性膳食纤维(SDF)抗氧化活性的影响。结果表明碱法处理后的样品对ABTS清除能力、DPPH清除能力、还原力显著高于酶法提取的(p < 0.05)；而且碱法和酶法提取的SDF对亚硝基自由基清除能力都很好，当样品浓度达到8 mg/mL时，清除率都可达99.85%；酶法提取的SDF对Fe2+的络合能力比碱法提取的SDF强，络合率可达94.93%。这表明，经碱法和酶法处理后的样品中都有一定的抗氧化活性，酶法和碱法处理胡麻渣提取得到的SDF是一种来源丰富、经济前景良好的抗氧化剂资源。
Abstract: The effects of enzyme and alkali treatment on the antioxidant activity of flax soluble dietary fiber (SDF) are studied in this paper. The results show that the scavenging ability on ABTS and DPPH and reducing power of alkali-treated samples are significantly higher than that of enzyme extraction (p < 0.05). SDFs extracted by both of alkali method and enzyme method have good scavenging ability tonitroso radical. When the sample concentration reaches 8 mg/mL, the scavenging rate can reach 99.85%. SDF extracted by enzymatic method has stronger chelating ability to Fe2+ than that extracted by alkali method and the chelating rate can reach 94.93%. These results indicate that the samples treated by alkali method or enzyme method have certain antioxidant activity. SDFs extracted by enzymatic method and alkali method are an antioxidant resource with rich sources and good economic prospect.
文章引用：郭玉如, 仝文玲, 杨靖, 徐建国. 酶法和碱法提取对胡麻渣可溶性膳食纤维抗氧化性的影响[J]. 农业科学, 2019, 9(8): 642-649. https://doi.org/10.12677/HJAS.2019.98092

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