02139cab a2200277Ia 4500001000800000003000600008008004100014040000800055041001300063100002100076240007500097245013000172246012400302300001500426504002300441520111300464546002301577650002501600650001201625650001401637700002001651700002001671700001701691773007701708856007601785u159617SIRSI100330s2009    ua     ss b         eng d  aEAL  aengbara1 aAbozed, Safaa S.10aAnnals of agricultural science, 2009 v. 54 (2)h[electronic resource].10aProduction of inulin and high-fructose syrup from Jerusalem artichoke tuber (Helianthus tuberosus L.)h[electronic resource].15aإنتاج الإنيولين وشراب الفركتوز عالى التركيز من درنات الطرطوفة.  ap.417-423.  aInclude reference.  aJerusalem artichoke (Hefianthus tuberosus L.) has been reported to have one of the highest carbohydrates yield. The main carbohydrate component in Jerusalem artichoke tubers is inulin, with high fructose content (about 94%). Inulin is a fructose polymer which has been widely investigated for the production of high-fructose syrup by acid or enzymatic hydrolysis. In this work, a process optimization study to extract of inulin at different temperatures, time and solvent solid ratio were used. The optimal conditions for maximum inulin extraction yield were (68.70 %) at 85°C, 60min and water solid ratios 1:20 (v/w). Precipitation of inulin by four solvents (ethanol, propanol, acetone and acetonitrile) at different ratio 1: 1, 2: 1, 3:1 and 4: 1(solvent: supernatant v/v) were studied. Inulin precipitation by ethanol and acetone were more than that occurred using acetonitrile or propanol. The influence of pH, type of acid, temperature and time on hydrolysis of inulin were investigated. The complete hydrolysis of the inulin was attained at pH 2.0, adjusted with sulphuric acid after 90min at 100°C.  aSummary in arabic. 0aJerusalem artichoke. 0aInulin. 0aFructose.1 aAbdelrashid, A.1 aEI-kalyoubi, M.1 aHamad, K. I.0 tAnnals of agricultural science. g2009.v.54(2)x0570-17837nnaswu15797140uhttp://nile.enal.sci.eg/EALE/2009/AAS/5409/2/417.pdfzFull Text Article