A wound signal originates at the site of injury in lettuce (Lactuca sativa L.) leaf tissue and propagates into adjacent tissue where it induces a number of physiological responses which include increased phenolic metabolism with the de novo synthesis of phenylalanine ammonia lyase (PAL, EC 4.3.1.5), the synthesis and accumulation of soluble phenolic compounds (e.g., chlorogenic acid), and subse...

The determination of aromatic acids by ion exclusion chromatography is challenging due to peak tailing and the long retention time of hydrophobic solutes. This review discusses the retention mechanisms and the factors affecting retention, eluents and detection methods used in ion exclusion chromatography of aromatic acids such as mono-, di-, tri- and tetra-carboxylic acids, amino acids, sulfona...

The aim of the study was to assess influence addition an oxygenated additive (a mixture mono-, di- and triacetylglycerol obtained from residual glycerin within biodiesel production scheme) on specific fuel consumption exhaust emissions a EURO 3 diesel bus during its daily route through city. To do this, urban fuelled with five blends (D), (B), (A) heptanol as co-surfactant (H). A portable measu...

Rabbit corneas were treated in vitro and in vivo with cholera toxin (CTX), a specific and irreversible activator of adenylate cyclase. Tissue pieces incubated in vitro in the presence of 10 mug/ml CTX for 15 min continuously synthesized adenosine 3',5'-monophosphate (cyclic AMP) at an increased rate for 3 hr in the absence of CTX in the medium. Corneas exposed for 10 min to CTX topically in viv...

The effects of fluorescein and Richardson's stain on corneal epithelial wound healing were compared in eyes of rabbits whose corneas had the epithelium removed by scraping or by n-heptanol. One eye of each rabbit was stained with fluorescein and the other eye was stained with Richardson's stain at intervals throughout the healing process, and the wounds were photographed for planimetry and dete...

The anthocyanin composition, fatty acids, and volatile aromas are important for Cabernet Sauvignon grape quality. This study evaluated the effect of exogenous abscisic acid (ABA) and methyl jasmonate (MeJA) on the anthocyanin composition, fatty acids, lipoxygenase activity, and the volatile compounds of Cabernet Sauvignon grape berries. Exogenous ABA and MeJA improved the content of total antho...

In this article the behavior of tetrahydrofuran (THF) + 2-alkanol namely 2-propanol, 2-butanol, 2-pentanol, 2-hexanol and 2-heptanol binary mixtures through the density and viscosity measurements have been studied as a function of composition and within the temperature range of 293.15–313.15 K. The excess molar volume, isobaric thermal expansivity, partial molar volumes, and viscosity deviation...