Opt i m i zat i on on ul t ras oni cwaveas s i s t ed ext ract i on ofol i gos acchari def rom Chi nes eYam by res pons es urf acem et hodol ogy

To est abl i sh t he ul t r asoni c wave assi st ed ext r act i on t echnol ogy ofol i gosacchar i de f r om Chi nese Yam,t he opt i mi zat i on wasappl i ed t o di scussi nf l uenci ng f act or sasul t r asound power ,ext r act i ng t i me,et hanolconcent r at i on and r at i o ofsol i d t o l i qui d by Box?Benhnken cent er-uni t ed des i gn as wel las t he met hod ofr esponse sur f ace anal ysi s ( RSM ) .The opt i mal t echnol ogi cal par amet er s wer e conf or med as f ol l ows:ul t r asound power 500 W ,ext r act i ng t i me 60 mi n, et hanol concent r at i on 60% , r at i o of sol i d t o l i qui d 1 颐15. Under t hese condi t i ons, t he exper i ment al yi el d of Chi nese Yam ol i gosacchar i de was 7. 21 ( 依0. 26) % , whi ch was cl os e wi t h t he pr edi ct ed val ue, 7. 25% . The pr esent Chi nese Yam ol i gosacchar i de yi el d was3. 91% hi ghert han t hatf r om ext r act i on wi t houtul t r asoni c wave.