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Investigation On Extracte Of Apricot Dregs Insoluble Dietary Fibre

Posted on:2011-11-15Degree:MasterType:Thesis
Country:ChinaCandidate:J X GuoFull Text:PDF
GTID:2131330332470455Subject:Food Science
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The apricot dregs to a rambling rose section Li-Shu that as fallen leaves of arbor.Abundant dietary was included meal in apricot dregs as by-product. Apricot dregs was taken as by-product in Apricot inclusey,which included abundant edible meal.Insoduble dietary fibre has varbus physical function, such as diabetes,cardiovavascular disease,intestine cancer,constipation etc,this make Apricot residue have a higher health care value and dual performance in economy and society.The Apricot residue was not used on feed.This paper adopted chemistral method,enzymic and alkali method, double enzymic method to prepare IDF,ascertained the best one of three method medium experiment. IDF product was material,H2O2 was adopted to decolor,the optimal decolored tecnics as follows through orthogonal experiment:(1)The optimal tecnics by chemical method was:the ratio of solid and liguid was 1:15,pH was 12,and soaked in 50℃,the extracted yield was 69.25%,The purity was 78.55%.The IDF in Apricot residue was crushed through 60 mesh,determined water content was 6.56g/g.The degree of dissolve and swell was 4.73mL/g.(2)Through thogonal experiment the optimal tenic condition of IDF Apricot residue was:the thickness of neutral enzyme was 0.6%,temperature was 50℃,and soaking in liquid of pH was 12 on 150 min,the extracted yield was 72.25%.The purity was 73.25%.The IDF in Apricot residue was crushed through 60 mesh, determined water content was 6.8g/g,The degree of dissolve and swell was 5.0mL/g.(3)Through thogonal experiment ascertained the double enzyme method the optimal tenic condition of IDF Apricot residue was:time was 100min,β-amylase was 0.5%,time was 80min,nectruse was 0.4%,the extracted yield was 77.67%.The purity was 70.59%.The IDF in Apricot residue was crushed through 60 mesh,determined water content was 5.5g/g.The degree of dissolve and swell was 5.3mL/g.(4)The optimal parameter condition of decolored IDF as follows:The thickness of H2O2 was 7%,pH was 11,temperature was 45℃,time was 2.5h. The result was showed that chromatic aberration was 83 by opimal tecnic condition.(5)The optimal parameter of medium experiment by chemical method was:The ratio of material-solutium was 1:10,pH was 9,and soaked 60℃in 100min; pH was adjusted 3 and saoking 65℃in 90min,airing and crushing after washing to neuter,extracted yield was 65.57%,the purity was 77.65%.The IDF in Apricot residue was crushed through 60 mesh,determined water content was 18.11g/g, The degree of dissolve and swell was 8.9mL/g.The paper through to medium experiment by chemical method .Insoduble dietary fibre extracted yield was 69.25%,that is basic for industrialize.
Keywords/Search Tags:apricot dregs, Insoluble dietary fibre, the chemical method, the enzyme and alkali method, the double-enzyme method, extraction, medium experiment
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