نتایج جستجو برای: salicylic acids
تعداد نتایج: 272604 فیلتر نتایج به سال:
This study evaluated the effect of preharvest treatments with salicylates (salicylic acid (SA), methyl salicylic (MeSA) and acetyl (ASA)) on fruit quality parameters primary secondary metabolites during ripening at five sampling dates. The results showed that affect overall quality, some very desirable important properties strawberry fruits were acquired by treatments, such as a deeper red colo...
2D-TLC and RP-HPLC methods were applied to qualitatively determinate free phenolic acids and those liberated by acid and alkaline hydrolysis in the flowers and leaves of G. robusta and G. squarrosa. The presence of eleven phenolic acids, namely: caffeic, chlorogenic, p-coumaric, p-hydroxybenzoic, ferulic, gallic, protocatechuic, vanillic salicylic, p-hydroxyphenylacetic and ellagic acids was de...
This paper describes the antioxidant and antimicrobial activities and phenolic components of different solvent (absolute methanol, absolute ethanol, absolute acetone, 80% methanol, 80% ethanol, 80% acetone and deionized water) extracts of leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]. The extract yields from leaves, flowers and bark ranged from 10.19 to 36.24, 12....
The membrane potentials of aged, excised barley (Hordeum vulgare L.) root cells were rapidly depolarized by the addition of salicylic acid (o-hydroxybenzoic acid) to the buffered medium bathing root segments. Initial values for membrane potentials were restored very slowly (within 100 minutes) by replacing the phenolic solution by phenolic-free buffer. Several other naturally occurring benzoic ...
6-Pentadeca(e)nylsalicylic acids isolated from the cashew Anacardium occidentale L. (Anacardiaceae), commonly known as anacardic acids, inhibited the linoleic acid peroxidation catalyzed by soybean lipoxygenase-1 (EC 1.13.11.12, type 1) competitively without prooxidant effects. Their parent compound, salicylic acid, did not have this inhibitory activity up to 800 pm, indicating that the pentade...
It has already been reported that several strains of different species of rhizobia are capable to degrade the phenolic compounds catechol, p-hydroxybenzoic, salicylic, and protocatechiuc acids (HUSSEIN et al. 1974). GUPTA and AGGRAWAL (1973) also reported the degradation of vanillin by some strains of rhizobia. However, nothing was published about the ability of bacteroids to degrade such compo...
Abstract In this study, the effect of leaf spray of two salicylic acid concentrations, 100 and 500 µM, was studied on the some physiological and biochemical properties of grape cv. Ghizil Uzum in saline (EC=10) and non-saline (EC=2) conditions. The experiment was conducted in a Completely Randomized Design with 4 replications under greenhouse condition. The results showed the significant ...
In this study, complexes of manganese (II) and zinc(II) with ligands (salicylic acid cysteine) [MnL2(H2O)2]2H2O, [ZnL2(H2O)2]2H2O have been synthesized. It is shown that the composition obtained depends on ratio initial components. The structure studied by elemental, X-ray phase analysis, (DLS)method, UV-VIS spectroscopy, IR spectral thermogravimetric analysis. method UV spectroscopy has show i...
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