1. Hanyar cirewa kai tsaye

Xylitol ya fara ke?e daga haushin bishiyoyin itacen oak ta masanin kimiyyar Jamus Hermann Emil Fischer a cikin 1890. Xylitol a zahiri yana wanzuwa a cikin kayan albarkatun shuka a cikin yanayi, irin su strawberries, plums rawaya, farin kabeji, da sauran 'ya'yan itatuwa da kayan marmari (300-935 mg/100 g bushe bushe). Ana iya amfani da hakar mai narkewa don cire xylitol kai tsaye daga kayan shuka, amma abun ciki na xylitol yana da ?asa a cikin kayan tushen shuka kamar 'ya'yan itatuwa da kayan marmari. Ko da yake abun ciki na xylitol a cikin plums apricot ya fi sauran kayan shuka, kuma abun ciki na xylitol a cikin koren plums yana da kusan kashi 1% na nauyin busassun, cire xylitol daga gare su kai tsaye yana bu?atar kayan aiki na musamman, yana cinye makamashi mai yawa, kuma yana da tsadar samarwa.

2. Hanyar hada sinadaran

A cikin 1970s, Finland ita ce ta farko da ta fara amfani da chromatography don raba D-xylose daga nau'ikan hemicelluloses na itace. Daga baya, D-xylose ya ragu zuwa xylitol a karkashin babban zafin jiki, matsa lamba, da kuma hydrogen catalysis, kuma ya zama hanyar samar da xylitol na masana'antu.

Ana iya rage Xylitol kai tsaye zuwa D-xylose mai tsabta ta hanyar ha?in sinadarai, ko kuma ha?a shi daga lignocellulosic biomass mai arziki a xylose. Samar da xylitol a cikin gida da kuma na duniya sau da yawa yana amfani da albarkatun kasa mai arziki a cikin pentose polysaccharides, irin su bambaro na alkama, alkama, masarar masara, masara, da dai sauransu, wa?anda aka riga aka tsara su ta hanyar acid hydrolysis (irin su HCI, HSO), sannan kuma ana tsarkake su daga sassan hemicellulose. A karkashin aikin mai kara kuzari, xylose yana shan maganin hydrogenation.

3. Hanyar canza halitta

Hanyar fasahar kere kere ta ?unshi hydrolysis na sharar aikin gona mai ?auke da sikari na pentose (irin su masara, bagasse, da pomace na zaitun) tare da dilute acid don samun xylose hydrolysate, wanda daga nan ya rage zuwa xylitol ta hanyar ?wayoyin cuta. Yin amfani da fermentation na microbial na hemicellulose hydrolyzate don samar da xylitol yana da fa'idodi na yanayi mai sau?i, aiki mai sau?i, abokantaka na muhalli, ?arancin ?arancin dangi, da ingancin samfurin abin dogaro, yana mai da shi yuwuwar hanya mai sau?i mai sau?i don samun wannan polyol.

Tsarin samar da xylitol yana da ?an tsayi, amma dole ne a ri?a ?aukar matakai masu mahimmanci don tabbatar da ingancin samfuran xylitol da ingantaccen ci gaban samarwa. Ana kiran wannan a matsayin tsarin ha?in gwiwa. Da zarar an kammala matakai masu mahimmanci, ana ?aukar mahimman abubuwan samar da xylitol.

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