中国食品学报2024，Vol.24Issue(2)：140-150,11.DOI:10.16429/j.1009-7848.2024.02.013
蒸制对甘薯可溶性膳食纤维提取、理化性质及消化特性的影响
Effects of Steaming Processing on the Extraction,Physiochemical Properties and Digestion Properties of Sweet Potato Soluble Dietary Fiber
摘要
Abstract
Objective:This work was aimed to analysis the influence of steaming processing on the extraction,physio-chemical properties,and digestion properties of sweet potato soluble dietary fiber(SDF).Methods:The response surface methodology and desirability function were conducted to optimize the solid-liquid ratio,extract temperature,and extract time of sweet potato SDF extraction for higher yield and total sugar content.SDF from steamed sweet potato(SDF-S)and from fresh sweet potato(SDF-F)were extracted by the optimized parameters.The yield,polysaccharide composition,and dietary fiber content,as well as water holding capability and oil holding capability,were measured to compare the differences of two SDF.Besides,simulated digestion in vitro was performed to assess the digestion properties.Results:The optimized parameters were 1∶16 of solid-liquid ration,40℃ of extraction temperature,and 40 min extraction time.The SDF-S showed significantly higher yield[(6.13±0.25％)vs(2.89±0.18)％],neutral polysaccharide content[(59.31± 0.73)％vs(46.83±0.63)％],acidic polysaccharide content[(25.36±0.48)％vs(9.60±0.14)％],dietary fiber content[(54.71±6.70)％vs(35.69±3.25)％],water holding capability[(4.60±0.31)g/g vs(3.27±0.21)g/g]and oil holding capa-bility[(3.30±0.40)g/g vs(1.82±0.28)g/g]than SDF-F(P＜0.05),while the SDF-F showed better resistance to digestion than SDF-S.Conclusion:Steaming processing improved the accessibility of sweet potato SDF but weakened its resistance to digestion.关键词
甘薯/蒸制/可溶性膳食纤维/中性多糖/酸性多糖/模拟消化Key words
sweet potato/steaming processing/soluble dietary fiber/neutral polysaccharide/acidic polysaccharide/simu-lated digestion引用本文复制引用
刘步瑜,刘兴泉,张治国,吴列洪,蔡静,杨开,吴卫成..蒸制对甘薯可溶性膳食纤维提取、理化性质及消化特性的影响[J].中国食品学报,2024,24(2):140-150,11.基金项目
浙江省"领雁"研发攻关计划项目(2022C02041) （2022C02041）
浙江省"三农九方"科技协作计划项目(2022SNJF008) （2022SNJF008）
