1,721,035 research outputs found

    Fruit Quality Performance of Organic Apricots at Harvest and after Storage from Different Environmental Conditions.

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    Given that limited information is available about fruit quality of organic apricots, the aim of this research was to determine the pomological and nutraceutical properties of organic apricot fruit under different environments. ‘San Castrese’ fruit were collected from organic orchards located in Emilia-Romagna and Tuscan regions. At harvest, and after 7 and 14 days of cold storage (+4°C), the pomological and chemical traits were determined. The total antioxidant capacity (TEAC method) and phenols content (Folin-Ciocalteu method) were analyzed. Organic fruit had stable pomological traits and antioxidant properties greater than fruit produced by conventional practices. The results obtained from different environments showed a possible relationship between particular climatic conditions and levels of antioxidants. After cold storage organic fruit of ‘San Castrese’ maintained their antioxidant properties

    From genotype to apricot fruit quality: the antioxidant properties contribution

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    Apricot fruit (Prunus armeniaca L.) quality strictly relates to the eating quality of fresh produce. Since consumers are more and more interested in healthy food, and apricot germplasm shows a wide choice of new selections and cultivars, apricot nutraceutical properties are under evaluation in order to select outstanding genotypes, which may link breeding and marketing. In the present study, 18 apricot genotypes of the Italian and international germplasm were evaluated over three years according to pomological, total antioxidant and total phenols attributes using principal component and hierarchical cluster analyses. The antioxidant capacity ranged from 1.24 to 11.47 μmolTE gFW−1 and total phenols from 0.22 to 1.58 mgGAE gFW−1. Four outstanding genotypes stood out as healthy food for fresh consumption which may also be introduced in breeding programs to produce new cultivars with improved nutraceutical values in addition to fruit qualitative attributes

    Antioxidant properties of peel and flesh 'GoldRush' and 'Florina' scab-resistant apple (Malus domestica)cultivars.

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    In the human diet, apples (Malus domestica) are the most consumed fruit worldwide throughout the whole year and are valued for their organoleptic characteristics (aroma, taste, and flavour). Apples are also an important source of phytochemicals, represented by flavonols, flavanols, cinnamic acid, dihydrochalcones, and anthocyanins, which have a known antioxidant activity that can prevent or reduce the insurgence of several chronic and degenerative diseases. These compounds have been found especially in the peel tissue. Apple orchards are often treated chemically against several diseases and particularly against the fungal pathogen Venturia inaequalis. This pathogen causes the growth of small and rough fruits (scab-apples) with black circular lesions on the peel. New resistant genotypes to V. inaequalis have been obtained but until now they have covered restricted markets aimed at organic production. The aim of this study was to evaluate the quality characteristics of two scab-resistant cultivars ‘GoldRush’ and ‘Florina’, focusing on pomologica

    Genotype, harvest season, and cold storage influence on fruit quality and antioxidant properties of apricot

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    The total antioxidant capacity, total phenols, and selected pomological traits of fresh apricots belonging to 12 genotypes were investigated over a 3-year period. These analyses were carried out on apricots at the ready-to-eat stage and after 7 and 14 days at 4◦C cold storage. Total antioxidant capacity and total phenols ranged from 1.14 ± 0.10 μmolTE gFW−1 to 9.93 ± 0.73 μmolTE gFW−1 and from 0.22 ± 0.01 mgGAE gFW−1 to 1.37 ± 0.11 mgGAE gFW−1, respectively. An effect of the harvest year on the antioxidant properties was also found to be dependent on the cultivars. The most storage-susceptible parameter was the flesh firmness of fruits, while the antioxidant level was maintained during storage. The influence of the genotype on fruit quality, which involves pomological and nutraceutical properties, was highlighted by analysis of variance, hierarchical clustering, and principal component analysi

    Total antioxidant capacity and phenolics content in fresh apricots

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    Food quality analysis addressed to the nutraceutical profile is becoming consistent highlighting the possibility to use the antioxidant capacity as further quality index of many fruit and vegetables species. In this study, the total antioxidant status of several apricot cultivars differing in ripening calendar, pomological traits and geographical origin have been determined by Trolox Equivalent Antioxidant Capacity (TEAC) assay and total phenol content by Folin-Ciocalteu (F-C) method. Among the cultivars analysed, the variability on the antioxidant capacity and total phenol content have been consistent, showing an increasing amount of antioxidants in the late ripening genotypes. These genotypes exhibited the best combination of pomological and nutraceutical traits with an excellent fruit qualitative profile

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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