ABSTRACT: The effectiveness of pre‐ and postharvest treatments with chitosan (0.1, 0.5, 1.0%) to control Botrytis cinerea on table grapes was investigated. In treatments, small bunches dipped in solutions inoculated the pathogen showed a reduction incidence, severity, nesting grey mold, comparison control. Single berries artificially wounded, treated polymer, B. reduced percentage infected lesion dia. Higher concentrations demonstrated greater decay reduction. All preharvest significantly...

The current growing interest for natural antioxidants has led to a renewed scientific attention artichoke, due not only its nutritional value, but, overall, polyphenolic content, showing strong antioxidant properties. major constituents of artichoke extracts are hydroxycinnamic acids such as chlorogenic acid, dicaffeoylquinic caffeic acid and ferulic flavonoids luteolin apigenin glycosides. In vitro studies, using cultured rat hepatocytes, have shown hepatoprotective functions in vivo...

Cultured rat hepatocytes and human hepatoma HepG2 cells were used to evaluate the hepatoprotective properties of polyphenolic extracts from edible part artichoke (AE). The exposed H2O2generated in situ by glucose oxidase treated with either AE, or pure chlorogenic acid (ChA) well known antioxidant, N, N′-diphenyl-p-phenilenediamine (DPPD). Addition culture medium caused depletion intracellular glutathione (GSH) content, accumulation malondialdehyde (MDA) cultures, as a lipid peroxidation...

The human breast cancer cell line, estrogen receptor negative, MDA-MB231, was used to evaluate the antitumor effect of polyphenolic extracts from edible part artichokes (AEs). Treatment cells reduced viability and inhibited growth in a dose-dependent manner. Importantly, AEs did not have any on normal epithelial MCF10A. Chlorogenic acid (ChA), most representative component fraction artichoke, had no prominent effects death rate MDA-MB231 cells. addition cells, rather than ChA, triggered...

Cultivated and wild species of the genus Vigna were screened for their flavonoid content. Flavonoid HPLC analyses clearly showed that cultivated lines cowpea (Vigna unguiculata L. Walp.) are very similar from a qualitative point view, always showing three aglycons: quercetin, kaempferol, isorhamnetin. In addition, positive relationship between resistance/susceptibility characteristics against aphids glycoside content was found. The resistant higher than susceptible ones. vitro bioassays...

Abstract Seeds of wild species and varieties Vigna were screened for their tannins α‐amylase inhibitor contents as defensive compounds against cowpea weevil. Seed coats contained condensed that positively correlated to colour but not resistance the insect. The inhibitors present in different amount cotyledons all analysed. Amongst cultivated lines assayed, unguiculata TVu 2027, an accession identified moderately resistant, was found contain higher inhibitor. When considered, V luteola...

The study aimed to assess the influence of three cooking methods (boiling, steaming, and microwave-cooking) on (i) composition in individual phenolic compounds, (ii) total content (TPC), (iii) antioxidant activity (TAA) eight Mediterranean wild edible species (Asparagus acutifolius, Asphodeline lutea, Beta vulgaris, Helminthotheca echioides, Sonchus oleraceus, Taraxacum officinale, Urospermum picroides, Urtica dioica). In raw greens, several caffeic acid derivatives (chicoric, caftaric,...

The content of chlorogenic acid, (+)-catechin, (-)-epicatechin, phloretin glycosides, and quercetin glycosides in fresh stored Golden Delicious apples (Malus domestica Borkh) was determined. relative amount phenolics the peel, with exception acid higher than that flesh. In addition, were detected only skin. These compounds tested for fungicidal activity against Phlyctaena vagabunda Desm., causal agent a postharvest rot. Chlorogenic inhibited P. spore germination mycelial growth vitro....

Polyphenolic extracts from the edible part of artichoke ( Cynara scolymus L.) have been shown to be potential chemopreventive and anticancer dietary compounds. High doses polyphenolic (AEs) induce apoptosis decrease invasive human breast cancer cell line, MDA-MB231. However, molecular mechanism underlying AEs antiproliferative effects is not completely understood. We demonstrate that chronic low treatment at sublethal concentrations suppress growth via a caspases-independent mechanism....

Summary Fresh‐cut ‘ B ig T op’ nectarines were dipped in 2% (w/v) ascorbic acid–1% calcium lactate and stored at 4 °C for up to 12 days 10 kPa O 2 ‐ CO ‐modified atmosphere packaging (MAP). The used microperforated plastic film allowed concentrations reach steady values from the fifth day storage onwards. Samples MAP after chemical dipping showed highest visual quality score, slight browning symptoms, increment firmness very low ethanol acetaldehyde content. also increased antioxidant...

Wild rocket is an expanding vegetable crop, especially as a fresh-cut product that requires high quality standards. These can be achieved through appropriate management of agronomic practices such water supply and nitrogen nutrition, in combination with emerging techniques the application biostimulating substances. Hence, this study focused on evaluating response wild to two biostimulants relation different regimes levels. The combined effect watering (WR) (restoration 50% 100% crop...

The most recent trend in research on probiotic bacteria aims at the exploitation of bioactive bacterial compounds that are responsible for health-promoting effects and suitable medical applications. Therefore, main purpose this study was to ascertain if immunomodulatory L. paracasei strains dendritic cells (DCs) were caused by metabolites released culture medium. For reason, grown two media generally used DCs, filtrates maturation DCs cytokine production evaluated. Moreover, reveal potential...

Combined treatment of several natural polyphenols and chemotherapeutic agents is more effective comparing to the drug alone in inhibiting cancer cell growth. Polyphenolic artichoke extracts (AEs) have been shown anticancer properties by triggering apoptosis or reactive oxygen species- (ROS-) mediated senescence when used at high low doses, respectively. Our aim was explore chemosensitizing potential AEs order enhance efficacy conventional chemotherapy breast cells. We employed lines assess...

Golden thistle (Scolymus hispanicus L.) is a wild edible plant belonging to Asteraceae family, with great potential for food applications. The aim of this study was identify the best cooking procedure able provide high-quality, ready-to-use product. For purpose, leaf midribs (the most used part plant) were cooked by boiling, steaming, and 'sous vide', products compared their phenolic content composition, antioxidant activity, sugar inorganic ion content, organoleptic characteristics,...

The chemical characterization of phenolic extracts salad burnet (Sanguisorba minor Scop. s.l.) and broomrape (Orobanche crenata Forsk.) was performed. Active fractions were separated characterized and, in the case O. crenata, two compounds, verbascoside is overbascoside, quantitatively extracted, purified characterized. These compounds proved to be effective reducing growth some important fungi responsible for decay fresh fruit vegetables postharvest. Verbascoside showed significant activity...

Asparagus is highly appreciated for its organoleptic and nutritional characteristics wild genotypes are valuable components of traditional dishes. In this study, the physical chemical traits (green violet) cultivated asparagus (‘Grande’, ‘Purple Passion’, ‘Bianco di Bassano del Grappa’), both raw steamed, were evaluated. Steaming did not affect total phenols content with exception green (+49%) ‘Grande’ (−31%). Only violet steaming increased antioxidant activity (+46%). Chlorogenic acid...