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09140711.2.3.4.PH1.2.3.4.25131PH3~4(Brix)2~30.3~0.4%1.()2.3.PH3~44.5.2(Yam)16~17%65~73%6~8%arginineleucinethreoninelysine(AB1B2C)(choline)(allantoin)(mucin)PH69PH3~410PH6~9PH3~4(25%,10mins)PHBrix2~30.1~0.5%()PH3()17.02%,()PH691984肽肽Peptide(Aminoacid)()16~17%65~73%6~8%WanasunderaandRavindran1994arginineleucinethreoninelysinevalineIngridetal.1993Lapeetal.1994WanasunderaandRavindran1994AB1B2CCaPFeIZnCuCoCrNicholineallantoinmucin2%proteinglycan48%mannan10%3~4%(arabinose)(glucose)(galactose)(xylose)(rhamnose)苷(diosgenin)苷(dioscin)(medicalsteroids)(1997)()4()()()(1997)5酶()()pH6~9PH691984PH3~4()DeethandTamime1981PH19881991PH3~4,()(),6()()()(viscouspolysaccharides)(mannan)48%10%(protein).肽肽Peptide(Aminoacid)肽肽peptides()AminoacidMolarpercentAminoacidMolarpercentLysine4.04Glycine6.81Histidine1.67Alanine5.89Ammonia12.93Valine4.13Arginine5.42Methionine2.34Asparticacid12.45Isoleucine3.54Threonine3.65Leucine7.23Serine6.66Tyrosine2.95Glutamicacid11.16Phenylalanine4.52Proline4.61ComponentsMoistureAshCrude*proteinCrudefatCrudefiberTotalsugarStarch%77.860.792.310.620.450.5517.02()(),7()PH.().OH(dinitrosalicyclicacid)K.H.P()(8()1.(1)(1)PH(2)PH2.(1)()(HCl)()PH(2)(1113751.....)PH(3)(PH=3~4)3(13)(251)PH(311113)PH()4.(1)(Brix)(2)PHPHmeter(HCl)2.4NHCl1:175:1100:14.8NHCl1:175:1100:11:13:11:13:125:150:1100:11012PH9(3)a.10~20ml100mlb.10~20100mlc.20ml2~350mld.0.1NnaOHe.ml(2~3)(4)(Mier1959HughesandLindsay198James1995)0.1~0.2910m11.5M2012ml10%100mlDNS(dinitrosalicyclicacid)lmLDNS10055mlHitachiU~2001540nm(5)(Totalsugar)Duboisetal1956-phenol-sulphuricacidmethod0.11g100mL100ppm1mLD-glucose10-100ppm~1mL5phenol5mL30HitachiU-2001Spectrophotometer488nm,10-6FdVFMw/S01-MC%100(6)(1990)1~2(W1)(W)105(W2)A(%)={[W1-(W2-W)]/(W1)}x100(7)(1990)2~5(W)(W1)105(550)200(W2)(%)=[(W2-W1)/W]x100(8)(1990)2~395~982~3WW1Soxhlet85516~181095~98W2[(W2-W1)/W]100(9)(1990)1.0W25ml5ml35K2SO4CuSO4110GerhardtVapodest201535NaOH3010bromocresolgreenmethyred425ml0.1NV1V2[4.380.014[(V1V2)M/W]100(10)Sensoryexperiment1991()proteinglycan48%mannan10%1984Misakietal.197211()---Time(min)12()13()14()PH1.TimeBrix152.3164.PHTime(min)175.18()PH50:125:1192021()()2223(25:1)+(1:3(25:1)3:11:1)(1:33:11:1)(50:1)(50:1)++(1:33:11:1)(1:33:11:1)(25:1)(25:1)&3)24()pH34;(25:1)pH3~454~63()15.31.1107.3PH320.1171.6PH4125.3---1.PH2.HCl3.3:12.4NHCl75:14.(25:150:1100:1)5.(25:1)(1:3)25()2.4NHCl75:110min1hr2hr0.290.220.260.160.260.262.4NHCl75:1PH10min1hr2hr2.151.590.512.283.913.62PH,PHPH10m---6.85.7810m5.7510.061h1.057.85.211h5.7710.061:12h1.0275.371:12h5.820.110m2.282.80.1610m3.5960.221h3.912.50.2675:12h3.622.80.2610m2.572.10.161h2.950.191h4.432.80.263:12h4.9770.252.4NHCl100:12h4.042.10.3510m0.561011.4310m2.5842.711h0.7610.812.071h2.4143.01:12h0.591011.531:12h4.3442.1710m1.952.50.2610m3.221.571h2.160.70.2275:12h1.791.30.421h3.192.21.6610m1.972.20.131h3.552.50.163:12hr3.193.31.344.8NHCl100:12h2.252.80.2626()1:175:1100:12.4NHClPH10min1hr2hr10min1hr2hr10min1hr2hr0.340.480.612.672.782.723.253.463.52---1.051.022.283.913.622.574.434.04PH,,1:175:1100:12.4NHCl10min1hr2hr10min1hr2hr10min1hr2hr6.26.28.0112.10.40.42.16.87.872.82.52.82.12.82.1,,()PH1..42.3.4.0.3~0.45.PH3~46.2.4N7512512517.8.5011:39.27().mucinallantioncholineAB1B2CPH(3~4),()PH6~9,,PH3~4()2.4N4.8NHCl(25%,10mins)PH,()Brix2~3()()()()0.1~0.5%()()28()T(1993)()DioscoreaL.Dioscoreajaponica1020BifidobacteriumLactobacilliClostridiumperfringens1.BifidobacteriumLactobacilli202.MDA3.SuperoxidedismutaseSOD4.()PH(25:1)(1:3)pH肽peptides29肽peptides2001200020011984(DioscoreaalataLinn.)22(12):8894.1984(DioscoreaalataLinn.)22(12):95101.1996pp.164166.1992141(2):14015819945(3):16718319956(2):11112630198512(3-4):201-2121992199719:79.2000197:41452000208:50551994P.812001Misaki,A.,Ito,T.,Harada,T.1972.Comstitutionalstudiesonthemucilageofyamanoimo,DiossscoreabatatasDecne,formaTsukune.Isolationandstructureofamannan.Agri.Biol.Chem.36(50):761-771