Search results for "Rutaceae"

Citrus somatic hybrid leaf essential oil

2000

The essential oil from the leaves of a Citrus interspecific somatic hybrid obtained by symmetric protoplast fusion between ‘Milam’ lemon [purported sexual hybrid of C. Jambhiri Lush (×) C. sinensis] and ‘Femminello’ lemon (C. limon L. Burm f.) has been characterized by steam distillation GC–MS analysis and its composition compared with that of the corresponding oils obtained from the parent plants. The amount (%) of the different classes of substances present in the oils show, in the new hybrid, an overall lowering of the hydrocarbon fraction and an increase of the oxygenated components. The somatic hybrid shows a close similarity in the amounts of terpenes, sesquiterpenes and alcohols with…

Terpenoid Constituents ofZanthoxylum acanthopodiumDC. Leaves

2008

Abstract The chemical composition of the essential oil of Zanthoxylum acanthopodium DC. leaves was analyzed by GC and GC/MS. Fifty-eight compounds accounting for 75.6% of the oil were identified. The major compounds were linalool (14.3%), 9,12-octadecadien-ol (8.4%), 1,8-cineole (7.7%), 2-undecanone (7.3%), farnesol (3.6%), 9,12,15-octadecatrien-1-ol (3.2%) and β-caryophyllene (3.0%).

Free and conjugated polyamine content in Citrus sinensis Osbeck, cultivar Brasiliano N.L.92, a Navel orange, at different maturation stages

2004

Biogenic amines, synthesized during physiological metabolic processes of all living organisms, are present in food. At low concentrations, polyamines are essential for cell renewal and growth, but they can be detrimental when consumed in high amount through the diet as they could support abnormal cell growth pathologies. The daily human diet contains more putrescine than spermidine or spermine, mostly derived from fruits. In general, orange fruits contain high levels of put, a fact that could limit their utilization in the daily diet besides the benefits contributed by their strong antioxidant properties. There is therefore an increasing interest in finding plant foods with low polyamine co…

Cytotoxic alkaloids from the root of Zanthoxylum paracanthum (mildbr) Kokwaro

2021

Chemical investigation of the root of Zanthoxylum paracanthum afforded 1 new alkamide derivative, (2E,4E)-6-oxo-N-isobutyldeca-2,4-dienamide (1) together with 10 known congeners including one pheno...

Effect of polyamines on in vitro anther culture of Citrus clementina Hort. ex Tan

2006

The improvement of the induction rate in Citrus anther culture is important for taking practical advantage of the haploid potential in breeding. The influence of polyamines on anther culture of Citrus clementina, cv Nules, with particular attention to the free, soluble and insoluble-conjugated polyamine levels, has been investigated. Putrescine, spermidine and putrescine plus spermidine, were added to the standard induction medium. Before culture, spermidine was the most abundant among the free polyamines detected in anthers. The exogenous supply of either putrescine or spermidine, either independently or combined, effected greater uptake and accumulation of polyamines. The addition of 2 mM…

Le lumie di Sicilia: note storiche e botaniche

2015

Citrus lumia Risso is one of the old cultivated limes in Sicily, Mediterranean Europe and North Africa; For this reason, besides lumia, it is called Mediterranean lime. It is a small tree, with unarmed branches; obovate, obtuse leaves, with serrate margins and slightly winged petioles; flowers of medium size, fragrant, with petals externally reddish; fruit globose, umbonate, with base and apex de- pressed; umbo conical, dotted at the base; smooth, yellow-sulphureous, aromatic peel; thin and bitter mesocarp; endocarp with sweet juice, consisting of 9 -11 logs containing many seeds. It is distinguished from C. limetta Risso by the colour of petals and some other carpological and foliar charac…

Hormone Effects on the Membrane Potential and on Sucrose-Induced Depolarization of Young <italic>Citrus</italic> Leaves

1992

Ruta chalepensis L. (Rutaceae) leaf extract: chemical composition, antioxidant and hypoglicaemic activities.

2017

Ruta chalepensis L. (Rutaceae) leaf extract was investigated for its chemical profile and antioxidant and hypoglycaemic properties. The antioxidant effects were investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), Chi-carotene bleaching, and metal chelating activity assays. The carbohydrate-hydrolysing enzymes inhibition assay was used to test the hypoglycaemic potential. R. chalepensis showed a high content of hesperidin and rutin with values of 591.9 and 266.7 mg/g dry extract, respectively. The extract exhibited a promising protection of lipid peroxidation (IC50 value of 16.9 mu g/mL) and inhibited both alpha-amylase and alpha-glucosidase enzymes in a concentration-dependent manner. The…

Maladie du huanglongbing

2019

Maladie du huanglongbing. Analyse du risque phytosanitaire pour l’Union européenne