Background. As a hydrophilic compound, alginate needs to be modified perform both as an emulsifier and matrix for fish oil encapsulation. Dodecenyl succinic anhydride (DSA) was selected the modification due its mild reaction conditions fact that no side product is generated. The purposes of this research were prepare partial hydrophobic groups alginate, which subsequently used encapsulant. Mate...

This research. Included the preparation. and characterization some novel. Six seven membered Heterocyclic. Compounds ( oxazepine , thiazine quinazoline ) The first step in clode react 2-amino-6- methoxybenzothiazole with 4- amino acetophenone to get Schiff base derivative (1). second (1) 4 -hydroxy schiff (2) last involve Phthalic Maleic Succinic) anhydride .get derivatives (3,4and 5) also with...

A convenient synthesis for 1,3,4-thiadiazolyl quinazolinone derivatives is described via facile cyclization of anthranilic acid with succinic anhydride and upon reaction glycine afforded 3-glycinyl derivative (2), which then treated thiosemicarbazide produced (3). Also, the key intermediate isothiocyanatobenzoazinone (13) synthesized checked triazolyl-(14), oxooxazolidinyl-(15) triazinanyl-(16a...

Abstract Tiger nut (Cyperus esculentus L.) is an ideal raw material for oil extraction, but starch-rich tiger meal, a by-product of has not been fully utilized. For this, starch was isolated from and then nanoparticles were prepared by gelatinization, ultrasonication nanoprecipitation under different conditions. The preparation parameters optimized measuring the particle size with dynamic light...

A study was conducted to determine whether the covalent chemical modification of Brucella abortus 19 salt-extractable proteins (BCSP) and BCSP derivatives would modulate the immune responses in BALB/c mice. Salt-extractable proteins BCSP 0-70 and BCSP 70-100 were modified with acetoacetic anhydride, and recombinant proteins rBCSP20 (20 kDa), rBCSP31 (31 kDa), and rBCSP45 (45 kDa) were modified ...