Enzymatic Synthesis of Astaxanthin n-Octanoic Acid Esters

Enzymatic Synthesis of Sugar Fatty Acid Esters

Enzymatic synthesis of sugar fatty acid esters was performed in an organic solvent using an immobilized Candida antartica lipase and various sugars and oleic acid as substrates. A high solubility of the sugar in the solvent was needed for a high sugar ester yield. Among the sugars and solvents tested in this study, the highest yield (98 %) was obtained when xylitol and 2-methyl 2-butanol were u...

Enzymatic synthesis of N-glucosyluronic acid conjugates.

Chemicals-o-Aminophenyl glucosiduronic acid was kindly supplied by Dr. R. T. Williams, St. Mary’s Hospital Medical School, London. oAminobenzoyl and p-aminobenzoyl glucosiduronic acids were prepared enzymatically with UDP-glucuronic acid’ and aglycone (5). Phenolphthalein glucosiduronic acid and bacterial P-glucuronidase were obtained from the Sigma Chemical Company, St. Louis, Missouri. UDP-gl...

Enzymatic Production of Sugar Fatty Acid Esters

Sugar fatty acid esters (SFAE) are well known as bio-surfactants. Their excellent biodegradability as well as the fact that they are tasteless, odorless, nontoxic, non-irritant and non-ionic explains their increasing importance in numerous areas. On the other hand, for a long time, large scale production of SFAE remained mainly in the realms of organic chemistry and chemical processing. Chemica...

THE SYNTHESIS , SOME DERIVATIVES , AND THE METABOLISM OF ( Y , r - DIKETO - n - OCTANOIC ACID

Enzymatic synthesis of cytidine 5'-monophospho-N-acetylneuraminic acid.

We have established an efficient method for enzymatic production of cytidine 5'-monophospho-N-acetylneuraminic acid (CMP-NeuAc) from inexpensive materials, N-acetylglucosamine (GlcNAc) and cytidine 5'-monophosphate (CMP). The Haemophilus influenzae nanE gene encoding GlcNAc 6-phosphate (GlcNAc 6-P) 2-epimerase and the Campylobacter jejuni neuB1 gene encoding N-acetylneuraminic acid (NeuAc) synt...