Search results for " seeds"

Inhibitory Activity and Chemical Characterization ofDaucus carotasubsp.maximusEssential Oils

2017

The essential oils (EOs) of green seeds from Daucus carota subsp. maximus growing wild in Pantelleria Island (Sicily, Italy) were characterized. EOs were extracted by steam distillation, examined for their inhibitory properties against food-borne Gram-positive and Gram-negative bacteria and analyzed for the chemical composition by gas chromatography (GC) and mass spectrometry (MS). Undiluted EOs showed a large inhibition spectrum against Gram-positive strains and also vs. Acinetobacter spp. and Stenotrophomonas maltophilia. The minimum inhibition concentration (MIC) was in the range 1.25 – 2.50 μl/ml for the most sensitive strains. The chemical analysis indicated that D. carota subsp…

Preliminary Results on Carrizo Citrange Synthetic Seeds Dessiccation and PVS2-Vitrification as Pre-Treatments To Cryopreservation

2011

Modifications over time of volatile compounds in coriander (Coriandrum sativum L.)

2007

Coriander (Coriandrum sativum L.) is an annual strongly-smelling herb belonging to the family Apiaceae, which is cultivated all over the world for its aromatic fruits (“seeds”) and, in many Asiatic and South American countries, for its green leaves. The aromatic features of leaves and fruits are sharply different, and the strong smell coming from leaves (many times referred to as a “bug” scent) is not always pleasant to many consumers from western countries. In our work, one Coriander small-seeded biotype has been grown in plastic covered greenhouses, and at given time intervals samples of leaves, flowers and fruits have been analyzed by means of HS-SPME and GC-MS to study the evolution ove…

Mediterranean plant germination reports – 3

2021

This is the third issue of the series of germination reports from Mediterranean areas (sensu Med-Checklist). It comprises germination protocols for 40 taxa: Teucrium from Sardinia by M. Porceddu & al. (Nos. 46-47); Campanula from North Italy by S. Villa & al. (No. 48); Anacamptis from Greece by S. Oikonomidis & C. A. Thanos. (No. 49); Astragalus, Iris, Jacobaea, and Klasea from central Italy by V. Di Cecco & al. (No. 50-53); Drimia, Periploca, Asparagus, Myrtus, and Pancratium from Malta by J. Buhagiar & al. (Nos. 54-58); Thymus from Sicily by G. Gugliuzza & al. (No. 59); Agrostemma, Bupleurum, and Xeranthemum from North Italy by A. Cucchietti & al. (Nos. 60-62);…

Seed germination reports for Sicilian endemic taxa of the genus Helichrysum (Asteraceae)

2021

In the present study, successful germination protocols for 11 different taxa of the genus Helichrysum native to Sicily are discussed. Eight of them are representative of strict endemic Sicilian taxa, 2 are Italian sub endemic and one, namely H. stoechas, is a widespread W Mediterranean species. Given the controversial taxonomic status and relationships of the Mediterranean Helichrysum, the taxonomic approach enhancing the existing diversity of Sicilian populations was herein adopted from current literature. First germination records are given for some of the investigated taxa.

L’usage de variétés de féveroles (Vicia faba L.) à faibles teneurs en vicine et convicine, réduit le risque du favisme chez l’homme hemizygote porteu…

2013

Low vicine and convicine content in faba bean seeds is under oligogenic control and can be easily monitored by breeding. Aim of the study was to show that new faba beans (FB) genotypes with low content of vicine and convicine (low V/C FB) produced by selection, are non-toxic and non-hemolytic even when ingested in large amounts by highly susceptible glucose-6-phosphate dehydrogenase (G6PD)-deficient individuals. Evidence indicates that V/C, amino-pyrimidine derivatives present in high amounts in normal FB, are the causative agents of favism, ie severe oxidative damage and hemolysis occurring in G6PD-deficient subjects after FB ingestion. In vitro, micromolar V/C elicits oxidative damage in …

A study of the chemical composition and biological activity of extracts from wild carrot (Daucus carota l.) seeds waste

2015

Waste (wild carrot seeds, Daucus carota L.) formed after the industrial extraction of 96% ethanol were re-extracted with 40% and 70% ethanol in order to recover of valuable substances for potential use as a safe food additives and functional food ingredients or nutraceuticals. In this study we compared chemical composition and activity of two obtained extracts (70% EtOH and 40% EtOH). The results indicated that the 70% EtOH extract has a higher total phenol and flavonoid content than 40% EtOH extract. The antioxidant activity of 70% EtOH extract was 86.88 % ± 3.018, whereas of 40% EtOH extract scavenging activity was 78.72% ± 3.276. The extracts were also active against bacteria with MIC ag…

Efficacy of microbial consortia and natural compounds as seed treatment for tomato pathogen management

2022

In this study the efficacy of experimental treatments based on microbial consortia (MC) (beneficial rhizobacteria and fungi, actinomycetes, arbuscular mycorrhizal fungi) and natural compounds (NCs) (chitosan and glucosinolates) as seed treatments for tomato bacterial and fungal pathogens management (Xanthomonas euvesicatoria pv. perforans, Xep; Pseudomonas syringae pv. tomato, Psto; Fusarium oxysporum f. sp. radicis-lycopersici, FORL) was evaluated. Independent trials were performed by using organic tomato seeds ‘San Marzano nano’. Treatments were performed by soaking seeds either in aqueous MC suspensions or NC dilutions. The direct effect on the seed inoculum was performed on seeds inocul…

RESTORATION OF LATVIAN ALFALFA (Medicago sativa) GENETIC RESOURCES PERSPECTIVE FOR BREEDING

2015

We have carried out restoring of some Latvian alfalfa genetic resources from seeds of accessions that did not germinate in soil at all. Two of them were repatriated from the N. Vavilov All-Russian Institute of Plant Industry (multiplied more than 40 years ago) and three from the Research Institute of Agriculture (Latvia) (multiplied 15-20 years ago). For germination of old seeds we used early elaborated in vitro culture conditions. Germination rate ranged 2-60%, depending from the genotype and seeds storage conditions. Plantlets with well developed roots and 2-3 leaves were planted in the substrate in small pots and grown in a greenhouse about a month, then replanted in the soil in field co…

Tocopherol, fatty acid and phytosterol content in seeds of nine wild taxa of Sicilian Brassica (Cruciferae)

2010

The purpose of this study was to determine tocopherol (Toc), fatty acid and phytosterol content in dry seeds of nine wild taxa of Sicilian Brassica sect. Brassica. Analyses were performed by gas chromatography (GC)-mass spectroscopy (MS). The biochemical analysis of dry seeds showed that in the nine taxa examined, α - and γ -Toc were the major isomers, δ - Toc was present in traces and β -Toc was never found. All taxa had a similar fatty acid composition with C 16:0 (357.2 mg kg − 1 DW), C 18:1 (393.94 mg kg − 1 DW) and C 22:1 (618.29 mg kg − 1 DW) acids present in higher amount. Unsaturated fatty acids (52.5–66.5%) were more abundant than saturated (33.5–47.5%) ones relative to the total f…