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Preparation of soluble dietary fiber from soybean hull by acid hydrolysis method
  
DOI：10.12166/j.zgyz.1003-7969/2020.11.007
KeyWord:soybean hull  acid hydrolysis  soluble dietary fiber
FundProject:中央级公益性科研院所基本科研业务费专项基金（ZX1905）
Author NameAffiliation
LI Xiaoning Academy of National Food and Strategic Reserves Administration, Beijing 100037, China 
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Abstract:
      The process conditions of soluble dietary fiber from soybean hulls by acid hydrolysis method were studied. On the basis of single factor experiment, the optimal process conditions were optimized by orthogonal experiment as follows: pH 2.0, extraction temperature 90 ℃, solid-liquid ratio 1∶ 20, extraction time 2.0 h, ethanol precipitation ratio 1∶ 4. Under these conditions, the yield of soluble dietary fiber was 12.49%, the purity was 60.13% and the protein content in the product was 18.33%.
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