@article {LIU2023133941,
	title = {Plant polysaccharide itself as hydrogen bond donor in a deep eutectic system-based mechanochemical extraction method},
	journal = {Food Chemistry},
	volume = {399},
	year = {2023},
	month = {01/2023},
	pages = {133941},
	type = {Research},
	abstract = {<p>A deep eutectic system (DESys) is formed when a hydrogen bond acceptor (HBA) is processed with polysaccharide (hydrogen bond donor, HBD) containing plant substance in water to dissolve, extract, and recover the polysaccharide directly, instead of using a traditional deep eutectic solvent (DES). The extraction efficiency is enhanced by the direct formation of the DESys, in a mechanochemical extraction (MCE) system. Key factors affecting the extraction efficiency were systematically studied and optimized. The effects of the DESys on the structure and physicochemical properties of polysaccharides were studied by several analytical techniques. The findings demonstrated that the direct DESys formation extraction efficiency was superior than that of traditional extraction methods while retaining physicochemical properties of polysaccharides. Moreover, the composition of polysaccharides extracted with this method is different from that obtained by conventional methods. The recovery and purification process of polysaccharides is simplified by eliminating the need for an additional HBD.</p>},
	keywords = {Deep eutectic solvents (DES), Deep eutectic system (DESys), hydrogen bonds, Plant natural products, POLYSACCHARIDE},
	issn = {0308-8146},
	doi = {https://doi.org/10.1016/j.foodchem.2022.133941},
	url = {https://www.sciencedirect.com/science/article/pii/S0308814622019033},
	author = {Min Liu and Simin Wang and Wentao Bi and David D. Y. Chen}
}
@article {ZHANG2023127394,
	title = {Preparation of carbon-rich material from Dendrobium officinale polysaccharide in deep eutectic system},
	journal = {International Journal of Biological Macromolecules},
	volume = {253},
	year = {2023},
	pages = {127394},
	abstract = {<p>A carbon-rich material (DESysChar) was prepared from polysaccharide within a deep eutectic system (DESys) containing oxalic acid, and systematically characterized using various analytical techniques. The investigation of reaction mechanism revealed concurrent dehydration and etherification processes. This study commenced with the extraction of plant polysaccharide using the DESys-based mechanochemical extraction method from Dendrobium officinale. Subsequently, the DESys method was used to carbonize the extracted Dendrobium officinale polysaccharide and produce DESysChar. DESysChar was then used for the adsorption and determination of pollutants in water. This study represents a significant advancement in eco-friendly material synthesis, enabling the low-temperature (120\&nbsp;\&deg;C) carbonization of plant-derived polysaccharides, thereby reducing energy consumption and environmental impact. The effective adsorption of methylene blue by DESysChar underscores its potential in environmental remediation. This study presents a more responsible and efficient approach to polysaccharide extraction and carbonization, addressing environmental concerns. Embracing the 4S workflow (involving Sustainable raw materials converted into Sustainable degradable products, by using Sustainable technology throughout the process to create a Sustainable environment) promotes sustainability in material development, laying the foundation for future eco-friendly practices in various industries. In summary, this study propels sustainable polysaccharide development for widespread use.</p>},
	keywords = {Carbon-rich material, Deep eutectic solvent, Deep eutectic system, Pollutant adsorption, POLYSACCHARIDE},
	issn = {0141-8130},
	doi = {https://doi.org/10.1016/j.ijbiomac.2023.127394},
	url = {https://www.sciencedirect.com/science/article/pii/S0141813023042915},
	author = {Yuan Zhang and Lu Yu and Wuxia Ge and Wentao Bi and David D. Y. Chen}
}
@article {4499,
	title = {UDP-glucose analogues as inhibitors and mechanistic probes of UDP-glucose dehydrogenase},
	journal = {Journal of Organic Chemistry},
	volume = {64},
	number = {26},
	year = {1999},
	note = {ISI Document Delivery No.: 271NJTimes Cited: 15Cited Reference Count: 25},
	month = {Dec},
	pages = {9487-9492},
	type = {Article},
	abstract = {UDP-glucose dehydrogenase catalyzes the NAD(+)-dependent 2-fold oxidation of UDP-glucose to give UDP-glucuronic acid. The putative aldehyde intermediate is not released from the active site and is presumably tightly bound. We have prepared UDP-7-deoxy-alpha-D-gluco-hept-6-ulopyranose 5, that contains a methyl ketone at C-6 and cannot be further oxidized by the enzyme. Ketone 5 was found to be a competitive inhibitor of the dehydrogenase from Streptococcus pyogenes with a K-I value of 6.7 mu M. We have also prepared the secondary alcohols UDP-6S-6C-methylglucose, 4a, and UDP-6R-6C-methylglucose, 4b. Compound 4a, but not 4b, was found to be a slow substrate for the dehydrogenase and was converted into the ketone inhibitor 5. This is consistent with the notion that the pro-R hydride is transferred in the first oxidation step of the normal enzymatic reaction.},
	keywords = {EFFICIENT SYNTHESIS, FUCOSE, GROUP-A STREPTOCOCCI, nucleotides, POLYSACCHARIDE, VIRULENCE},
	isbn = {0022-3263},
	url = {<Go to ISI>://000084600100019},
	author = {Campbell, R. E. and Tanner, M. E.}
}
@article {6841,
	title = {LASER DESORPTION IONIZATION FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY OF CARBOHYDRATES .1. BACTERIAL OLIGOSACCHARIDES CONTAINING NEURAMINIC ACID OR PYRUVIC-ACID ACETAL GROUPS},
	journal = {Analytica Chimica Acta},
	volume = {241},
	number = {2},
	year = {1990},
	note = {ISI Document Delivery No.: EU533Times Cited: 14Cited Reference Count: 342ND INTERNATIONAL SYMP ON APPLIED MASS SPECTROMETRY IN THE HEALTH SCIENCESAPR 17-20, 1990BARCELONA, SPAINASTRA, APPL BIOSYST, BOEHRINGER MANNHEIM, COMISSIO INTERDEPT RECERCA \& INNOVAC TECHNOL, CONSEJO SUPER INVESTIGAC CIEN, CONSELLERIA ENSENYAMENT GENERALITAT CATALUNYA, FINNIGAN MAT, FONDO INVESTIGAC SANITARIA, REAL SOC ESPANOLA QUIMICA, GRP CROMATOG \& TECN AFINES, HEWLETT PACKARD},
	month = {Dec},
	pages = {187-199},
	type = {Proceedings Paper},
	abstract = {The positive- and negative-ion laser desorption ionization Fourier transform ion cyclotron resonance mass spectra of two known, underivatized, linear oligosaccharides obtained by enzymatic hydrolysis with bacterial viruses of the corresponding native bacterial capsular polysaccharides were analyzed. The high-resolution spectra, estimated to be from less than 1 nmol of sample, showed prominent pseudo-molecular ions, as well as fragment ions derived from glycosidic bond and ring cleavages. For some of these frequently observed ring fragments, structures are proposed by analogy to known even-electron gas phase fragmentations and even-electron solution chemistry. The structures of the capsular biopolymers were delineated from these fragmentations, confirming that Klebsiella pneumoniae serotype K3 capsular polysaccharide is made up of a pentasaccharide repeating unit, consisting of four hexoses, one hexuronic acid and one pyruvic acid acetal; and confirming that the tetrasaccharide repeating unit of Escherichia coli serotype K9 is composed of two hexoses, one acetamido hexose and one N-acetyl neuraminic acid. The analysis of oligosaccharides containing N-acetylated sugars was complicated by the fact that an amino hexose attached to a -C2H3O2 ring fragment shares the same elemental formula as an acetamido hexose. Nevertheless, other less ambiguous structural ions could be used for sequencing. Furthermore, analysis of the ring fragments also provided some indication of the positions of linkage of certain monosaccharide residues.},
	keywords = {BACTERIOPHAGE-BORNE ENZYMES, CAPSULAR, FAB, FAST ATOM BOMBARDMENT, GLYCOSIDES, ION CYCLOTRON RESONANCE, LASER DESORPTION IONIZATION, MS, OLIGOSACCHARIDES, POLYSACCHARIDE, SEQUENCE, SPECTRA},
	isbn = {0003-2670},
	url = {<Go to ISI>://A1990EU53300004},
	author = {Lam, Z. and Comisarow, M. B. and Dutton, G. G. S. and Parolis, H. and Parolis, L. A. S. and Bjarnason, A. and Weil, D. A.}
}
