Results 71 to 80 of about 35,219 (254)
Journal of Lipid Research, 1978 A new method for the qualitative and quantitative determination of the molecular weight distribution of total cellular fatty acids is described. The method includes a simple extraction–saponification followed by chemical ionization–mass spectrometric ...
R P Schwarzenbach, N S Fisher
doaj
Detailed study of Brazil nut (Bertholletia excelsa) oil micro-compounds : Phospholipids, tocopherols and sterols [PDF]
, 2008 The oil of the Brazil nut (Bertholletia excelsa) was studied for its composition in fatty acids, tocopherols, sterols and phospholipids. The fatty acids composition of phospholipids was also studied.
Brochier, José +4 more
core +1 more source
Synthesis of Rhamnose‐Modified Lewis‐X‐Containing Saponins
European Journal of Organic Chemistry, EarlyView.The synthesis of triterpenoid saponins bearing a Lewis‐X trisaccharide analogue, in which the fucose residue is replaced by a rhamnose, is presented. These saponins, designed as negative controls in dendritic cell‐specific intercellular adhesion molecule‐3‐grabbing nonintegrin‐targeted therapeutic applications, are prepared through iterative and ...
Oscar Javier Gamboa Marin +3 more
wiley +1 more source
Influência da saponificação na determinação de carotenoides em maracujás do cerrado
Química Nova, 2012 This work describes the evaluation of the effect of saponification process in the carotenoid's content of three species of passion fruit. The results indicated the saponification of the extract was necessary to obtain cis-violaxanthin, trans-violaxanthin
Daniele Cristina Wondracek +5 more
doaj +1 more source
Bi-acylation of cellulose: determining the relative reactivities of the acetyl and fatty-acyl moieties [PDF]
, 2011 The global reaction between acetic anhydride and a fatty acid yields, at equilibrium, an asymmetric acetic-aliphatic anhydride in a medium containing finally: acetic-fatty anhydride, acetic anhydride, fatty acid, acetic acid and fatty anhydride.
Borredon, Marie-Elisabeth +2 more
core +2 more sources
Total Synthesis of Ectocarpin A
European Journal of Organic Chemistry, EarlyView.A fully enantioselective total synthesis of ectocarpin A, a new oxylipin, has been achieved in 12 steps starting from tetrahydro‐1H‐cyclopentafuranone. Key steps include the formation of the chiral core, diastereoselective epoxidation, enzymatic desymmetrization of a 1,4‐diol, epimerization, and strategic Wittig and Julia‐Kocienski olefinations to ...
Alexandre Guy +2 more
wiley +1 more source
A copolymer analysis approach to estimate the neutral sugar distribution of sugar beet pectin using size exclusion chromatography [PDF]
, 2011 Partially degraded sugar beet (Beta vulgaris) pectins were characterised in terms of galacturonic acid, neutral sugar and ferulic acids contents. It was shown that the total neutral sugar content is correlated with the ferulic acid content. One pectin (C)
Morris, Gordon, Ralet, M.C.
core +2 more sources
Experimental Investigation and Characterization of Biodiesel From Aregmone ocheroleuca
Energy Science &Engineering, EarlyView.The experimental investigation and characterization of biodiesel derived from Aregmone ochroleuca, a plant known for its oil‐rich seeds. The production of biodiesel from argemone oil, methanol, and potassium hydroxide catalysis through transesterification methods, and then characterized their properties, like the Effect of Reaction Temperature on ...
Eyob Hailemichael Yimer +2 more
wiley +1 more source
Chemistry and Biology of Streptogramin A Antibiotics [PDF]
, 2007 The streptogramin A antibiotics have proven to be highly active against Gram positive bacteria, particularly methicillin-resistant Staphylococcus aureus. Members of this group of compounds are characterized by a 23-membered macrocycles containing polyene,
Ahmed, Fahim, Donaldson, William
core +1 more source
A new combined approach to improved lipid production using a strictly aerobic and oleaginous yeast [PDF]
, 2019 Microbial lipids have potential applications in energy, and food industry, because most of those lipids are triacylglycerol with long-chain fatty-acids that are comparable to conventional vegetable oils and can be obtained without arable land requirement.
Adamczak +69 more
core +1 more source