Acrolein is an electrophilic a,b-unsaturated aldehyde of industrial, pharmaceutic, and toxicologic importance to which we are exposed in environmental, occupational, and therapeutic situations. Acrolein is known to exert different biologic effects through reactions with cellular macromolecules such as DNA, certain proteins, or glutathione. In many situations (such as in tobacco smoke or other f...

A new, stepwise synthesis of calix[4]phyrins is described. It relies on the condensation of a ketone with pyrrole to form a dipyrromethane containing a quaternary carbon center that is subsequently condensed with an aromatic aldehyde. This methodology, in contrast to the previous rational approach described by this group (involving formation of a trisubstituted dipyrromethane via the condensati...

Oxalic acid dihydrate as a green, mild and efficient catalyst for the one-pot three-component Biginelli synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives from the reaction between β-keto esters (methyl or ethyl acetoacetate), aromatic aldehyde (benzaldehye derivatives) and urea or thiourea under thermal and solvent-free conditions with excellent yields and short reaction time is st...

The major ingredient of Cinnamomum, which is cinnamic aldehyde, has a variety of uses, such as aromatic compound, beverage, chewing gum, toothpaste, and incense as a component of cosmetics, and halitosis remover. Cinnamic aldehyde is also known to have a remedial effect. In this study, Cinnamomum is used to look for antibacterial activity on oral bacteria. A disk diffusion method is used as the...

The Arabidopsis (Arabidopsis thaliana) aldehyde oxidases are a multigene family of four oxidases (AAO1-AAO4) that oxidize a variety of aldehydes, among them abscisic aldehyde, which is oxidized to the phytohormone abscisic acid. Toxic aldehydes are generated in plants both under normal conditions and in response to stress. The detoxification of such aldehydes by oxidation is attributed to aldeh...

The fragrance gene, betaine aldehyde dehydrogenase 2 (Badh2), has been well studied in many plant species. The objectives of this study were to clone Badh2 and compare the sequences between aromatic and non-aromatic coconuts. The complete coding region was cloned from cDNA of both aromatic and non-aromatic coconuts. The nucleotide sequences were highly homologous to Badh2 genes of other plants....

An aldehyde oxidase, which oxidizes various aliphatic and aromatic aldehydes using O(2) as an electron acceptor, was purified from the cell-free extracts of Pseudomonas sp. KY 4690, a soil isolate, to an electrophoretically homogeneous state. The purified enzyme had a molecular mass of 132 kDa and consisted of three non-identical subunits with molecular masses of 88, 39, and 18 kDa. The absorpt...

Laropal® A81 is a urea-aldehyde resin used as varnish for paintings requiring 30%–40% of aromatic solvents to be dissolved. Considering the dangers environment and health, an attempt was made replace them with less impactful low-toxic solvents. The present research investigates new formulation aliphatic hydrocarbons esters (isobutyl isobutyrate, IBIB) alternative traditional aromatics mixture. ...

Aromatic rice is highly preferred by consumers and has an important market worldwide. The demand for aromatic high in East African countries, mainly urban areas. Among the varieties that are grown Burundi, few of them have a slight aroma which not enough to satisfy consumers’ preference. There no published report on status locally breeding lines Burundi yet. This study aimed identify genotypes ...