1. Usoro mm?p?ta ozugbo

Xylitol b? nke mb? d?p?r? ad?p? site n'?gb?gb? osisi oak site n'aka ?kà mm?ta sayens? German b? Hermann Emil Fischer na 1890. Xylitol d? na ihe ?k?k? sitere n'okike, d? ka strawberries, plums odo, k?l?flawa, na mkp?r? osisi na akw?kw? nri nd? ?z? (300-935 mg/100 g ak?r?). Enwere ike iji mm?p?ta ihe mgbaze were wep? xylitol ozugbo site na ihe nd? sitere na osisi, mana ?d?naya xylitol d? ntak?r? na ihe nd? sitere na osisi d?ka mkp?r? osisi na akw?kw? nri. ? b? ezie na ?d?naya nke xylitol na apricot plums d? elu kar?a ihe nd? ?z? sitere na osisi, na ?d?naya nke xylitol na plums akw?kw? nd? akw?kw? nd? b? ihe d? ka 1% nke ibu ak?r?, iwep?ta xylitol ozugbo n'aka ha ch?r? ak?r?ngwa p?r? iche, na-eri nnukwu ike, ma nwee nnukwu ?gw? ?r?.

2. Usoro njik? kem?kal?

N'af? nd? 1970, Finland b? onye mb? jiri chromatography kewap? D-xylose na hemicelluloses d? iche iche. Mgbe nke ah? gas?r?, a na-ebelata D-xylose ka ? b?r? xylitol n'okpuru oke okpom?k?, nr?gide d? elu, na catalysis hydrogen, wee gh?? usoro mmep?ta xylitol mmep?ta ihe.

Enwere ike belata Xylitol ozugbo ka ? b?r? D-xylose d? ?cha site na njik? kem?kal?, ma ? b? mep?ta ya site na lignocellulosic biomass bara ?ba na xylose. Mmep?ta xylitol ma n'ime ?l? na nke mba ?wa na-ejikar? ak?r?ngwa bara ?ba na pentose polysaccharides, d? ka ah?h?a ?ka, ?ka wit, ?ka ?ka, ?ka ?ka, wdg, nke a na-emezi site na acid hydrolysis (d? ka HCI, HSO), wee kpochaa ya site na ak?k? hemicellulose. N'okpuru ?r? nke onye na-emep?ta ihe, xylose na-enweta mmeghachi omume hydrogenation.

3. Usoro mgbanwe ndu

?z? nkà na ?z? ihe nd? d? nd? na-ag?nye hydrolysis nke ihe mkpofu ugbo nwere sugar pentose (d?ka ?ka cobs, bagasse, na olive pomace) na acid dilute iji nweta xylose hydrolysate, b? nke a na-ebelata ka ? b?r? xylitol site na microorganisms. Ojiji nke microbial gbaa ?ka nke hemicellulose hydrolyzate iji mep?ta xylitol nwere uru nke ?n?d? mmeghachi omume d? nro, ?r? d? mfe, enyi gburugburu ebe obibi, mmet? d? ala, na àgwà ngwaah?a a p?r? ?dabere na ya, na-eme ka ? b?r? ?z? ?z? d? ?n? ala maka ?nweta polyol a.

Usoro mmep?ta nke xylitol d? ogologo ogologo, mana a ghagh? ?gh?ta ?t?t? usoro isi iji h? na ngwaah?a xylitol d? mma na ?ganihu d? mma nke mmep?ta. A maara nke a d? ka usoro imek? ihe ?n?. Ozugbo emechara ?t?t? isi usoro, a na-agh?ta isi ihe nke mmep?ta xylitol.

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