MALTOZA (az angl. malt — ordi gallai sabzonidashuda) in qandi ordi gallai sabzonidashuda, disakharidi tabii, ki az boqimondai du molekulai glyukoza iborat ast. Dar doni neshzadai jav, javdor va digar galladonaho, inchunin pomidor, gard va nektari baze rastaniho bisyor ast. Maltoza dar ob nagz hal meshavad, tami shirin dorad.
Biosintezi Maltoza az p-D-glyukopirano, zilfosfat pa D-glyukoza tanho dar baze namudhoi bakteriya malum ast; dar rastaniho va hayvonho hangomi tajziyai fermentii krakhmal va glikogon (nig. Amilazauo) hosil meshavad. Maltoza dar mikrobiologiya baroi tasnifi mikroorganizmho istifoda meshavad. In moddaro ba zaboni russi «Solod» va yo «Maltoza» menomand.