Pomological and Nutraceutical Properties in Apricot Fruit: Cultivation Systems and Cold Storage Fruit Management     

Annamaria Leccese  Sylvie Bureau  Maryse Reich  M. G. C. Catherine Renard  Jean-Marc Audergon  Carmelo Mennone  Susanna Bartolini  Raffaella Viti 《Plant foods for human nutrition (Dordrecht, Netherlands)》2010,65(2):112-120

We have investigated the effect of cultivation systems and fruit post-harvest management on the antioxidant properties of apricot fruits. Trees of five cultivars ‘Tyrinthos’, ‘Cafona’, ‘Bella d’Italia’, ‘Vitillo’ and ‘Pellecchiella’ were cultivated under integrated and organic systems. Fruits were collected at full maturity stage and analyzed either immediately or after storage at 4±0.5 °C and 85% of relative humidity for seven and 14 days. The main pomological traits (weight, colour, flesh firmness, total soluble sugars, titratable acidity) and antioxidant properties were analyzed. The total antioxidant capacity (TAC by TEAC method), total phenols content (TP by Folin-Ciocalteu method) and carotenoid content by HPLC-DAD were monitored. Cultivar characterization by principal component analysis (PCA) indicated a large variability on pomological and antioxidant properties of apricot fruits. ‘Bella d’Italia’ showed better TAC and TP values compared to the other cultivars. ANOVA interactions between cultivar and cultivation system (organic/integrated) were found for the antioxidant properties. These interactions may help to select a set of genotypes with better performances under organic system, which in our study might be indicated in ‘Cafona’ and ‘Bella d’Italia’.  相似文献   

Study of dynamic accumulation of secondary metabolites in three subspecies of Hypericum perforatum     

Raffaella Filippini  Anna PiovanAnna Borsarini  Rosy Caniato 《Fitoterapia》2010

St. John's Wort extracts are used for the treatment of mild to moderately severe depression, and their composition and standardization have been thoroughly investigated. Standardization of St. John's Wort extracts has to cope with several factors that affect the phytochemical profile of the plant, with geographic location, seasonal variations and subspecies all being important. To address this issue, three different subspecies of Hypericum perforatum L. were profiled in relation to different maturation phases, evaluating the variations in the context of the major secondary metabolites from this plant. HPLC analysis indicated that H. perforatum subsp. perforatum is richer in secondary metabolites than the other subspecies, and that the three subspecies show a different profile during the developmental stages. Hypericins, hyperforins and flavonoids peak at quite different stages, and the standardization of Hyperici extracts based only on the contents of hypericin is not adequate to guarantee batch reproducibility of the extracts.  相似文献   

Polymorphisms in major histocompatibility complex genes and its associations with milk quality in Murrah buffaloes     

Freitas  Ana C.  Stafuzza  Nedenia B.  Barbero  Marina M. D.  Santos  Daniel J. A.  Fortes  Marina R. S.  Tonhati  Humberto 《Tropical animal health and production》2020,52(1):415-423

Tropical Animal Health and Production - Animal breeding programs have used molecular genetic tools as an auxiliary method to identify and select animals with superior genetic merit for milk...  相似文献   

Characterization of Phaseolus vulgaris L. Landraces Cultivated in Central Italy     

Perazzini R  Leonardi D  Ruggeri S  Alesiani D  D'Arcangelo G  Canini A 《Plant foods for human nutrition (Dordrecht, Netherlands)》2008,63(4):211-218

Eight Phaseolus vulgaris L. landraces cultivated on farm in marginal areas of Central Italy (Lazio region) were investigated in order to evaluate chemical composition of storage proteins and secondary metabolites fractions. The total protein content showed some differences among landraces; the maximum value was next to 30 g for 100 g of dry weight. The seed storage proteins were screened by polyacrylamide gel electrophoresis (SDS/PAGE): seven landraces exhibited phaseolin patterns type S, one landrace showed a phaseolin pattern type T. A morphological analysis of cotyledon parenchyma performed by scanning electron microscopy (SEM) revealed differences in size of starch granules. Moreover the polyphenolic composition was investigated using HPLC-APCI; from the methanol extracts a flavonoid, kaempferol, and a coumarin, 5,7-dimethoxycoumarin, were identified. To our knowledge, this is the first time that 5,7-dimethoxycoumarin has been reported in P. vulgaris seeds.  相似文献   

Comparative antifungal effect and mode of action of tetraconazole on Ustilago maydis     

Raffaella Carzaniga  Angelina Carelli  Gandolfina Farina  Anna Arnoldi  Franco Gozzo 《Pesticide biochemistry and physiology》1991,40(3)

Tetraconazole, a new, recently introduced antifungal triazole, has been assayed in parallel with a number of standard analogues on various sensitive strains of Ustilago maydis. The values of EC₅₀ and EC₉₀ tetraconazole concentrations, determined on strain ATCC 14826 in agar, were 0.5 × 10⁻⁶ and 3.5 × 10⁻⁵ , respectively, in reasonable agreement with those needed to inhibit by 50% and 90%, respectively, the ergosterol biosynthesis in broth cultures. Squalene and 12 sterols have been extracted from the latter, characterized and quantified. Accumulation of 14α-methylsterols and reduction of ergosterol and other late precursors are consistent with the inhibition of 14α-demethylase caused by the title compound.  相似文献   

Clinicopathologic findings of naturally occurring Rabbit Hemorrhagic Disease Virus 2 infection in pet rabbits     

Cristina Bonvehí  María Ardiaca  Andrs Montesinos  Carles Juan‐Salls  Alicia Gmez  Beatriz Teso  Sergio Barbero  Sara Ekei Ferrera 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2019,48(1):89-95

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Measurement of faecal corticoid metabolites in domestic dogs     

Farca AM  Cavana P  Badino P  Barbero R  Odore R  Pollicino P 《Schweizer Archiv für Tierheilkunde》2006,148(12):649-655

In the present study we established a method for the determination of faecal glucocorticoid metabolites in dogs and then used the assay to evaluate the adrenocortical activity in 12 dogs divided into two groups. In group A faecal samples were collected at their domestic setting. In group B, faecal samples were collected at home prior to transport to a boarding kennel, where faecal samples were then collected. In faecal samples most of the steroids were extracted with methanol and determined using a radioimmunoassay with an anti-cortisol antibody. Dogs in group A did not show any statistically significant inter-day variations in the basal levels of faecal corticoid metabolites. Faecal corticoid metabolites in dogs in group B were significantly higher on the first day at the kennel compared to animals kept at home. The peak concentration was found after 24 hours and followed by a slow decline. These results suggest that extraction with methanol and dosage with an anti-cortisol antibody by radioimmunoassay represents a valid approach technique for determination of faecal glucocorticoid metabolites and accurately reflects adrenocortical activity.  相似文献   

Cyanidin-3-O-glucoside protection against TNF-α-induced endothelial dysfunction: involvement of nuclear factor-κB signaling     

Speciale A  Canali R  Chirafisi J  Saija A  Virgili F  Cimino F 《Journal of agricultural and food chemistry》2010,58(22):12048-12054

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Astroviruses as causative agents of poultry enteritis: genetic characterization and longitudinal studies on field conditions     

Canelli E  Cordioli P  Barbieri I  Catella A  Pennelli D  Ceruti R  Moreno A  Lavazza A 《Avian diseases》2012,56(1):173-182

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Effects of Inflammation upon beta-adrenoceptor concentrations in the common digital artery of the horse: an in vitro study     

Barbero R  Badino P  Cuniberti B  Magistris G  Odore R  Pagliasso S  Girardi C  Re G 《Veterinary research communications》2005,29(Z2):273-275

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