We describe in this paper the efficient four-component one-pot synthesis of three fully protected oligosaccharides 22, 36, and 50 with di-branched structures by employing D-galacto- and mannopyranosyl thioglycoside diols as central glycosylating agents. After global deprotection, they were converted respectively into the 3-aminopropyl linker-containing free oligosaccharide fragments 14, 24, and...

Two-stage treatments of sugarcane bagasse with steam and alkaline peroxide were performed and the hemicelluloses extracted were characterized by chemical methods, SEC-MALLS, FT-IR and 13C NMR. The hemicellulose from steam pretreatment was found to contain galacto-arabinoxylans while alkaline peroxide extraction yielded predominately linear arabinoxylans.The present studyshowed a promising seque...

Lactose, a unique disaccharide, occurring exclusively in the mammalian milk plays an important role in nutrition. Most of the lactose that is manufactured on an industrial scale is produced from whey derived from the production of cheese, casein or paneer using crystallization and purification technologies. Lactose can be converted to various derivatives like lactitol, lactobionic acid, galacto...

Preterm birth still causes significant mortality and morbidity in newborns, despite modern advancements preterm care. The gut microbiota is the most microbial colonization human body plays a role supporting healthy body. infants are susceptible to dysbiosis, which thought contribute many adverse outcomes of prematurity, such as necrotizing enterocolitis (NEC), late-onset sepsis (LOS), developme...

Galacto-oligosaccharides (GOS) are prebiotics manufactured enzymatically from lactose as substrate. The growing GOS market facilitates the valorization of dairy by-products which represent cheap and abundant sources lactose. Large-scale production typically employs soluble enzymes in batch reactors that commonly associated with low enzyme usability and, therefore, high operational expenditures....

The galacto-oligosaccharide (GOS) OLIGOMATE 55N (Yakult) is a mixture of oligosaccharides, the main component of which is 4'-galactosyllactose (4'-GL). Numerous reports have shown that GOSs are non-digestible, reach the colon and selectively stimulate the growth of bifidobacteria. The product has been used as a food ingredient and its applications have expanded rapidly. However, the bifidobacte...