1,720,996 research outputs found

    Environmental sustainability of cardoon production: a systematic literature review of life cycle assessments

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    This systematic literature review covers the main environmental aspects related to the production of cardoon (Cynara cardunculus L. var. altilis DC) through a life cycle assessment perspective. Three databases, namely Scopus, Science Direct, and Web of Science were systematically searched using “cardoon” and “life cycle assessment” keywords, and 9 papers were finally included in the qualitative synthesis. Given the findings from the papers reviewed, the authors could document that the cultivation phase highly affects the environmental performances of the cardoon bio-energy chains, which however were more sustainable than conventional ones (from non-renewable sources). Moreover, several mitigation and improvements solution including the reduction of fertiliser use, the avoidance of irrigation when possible, the shift toward the organic regime, and the full exploitation of the crop biomass for multiple purposes were proposed. Finally, although specific, the review may be of interest to researchers, LCA practitioners, farmers and producers, policy- and decision-makers, and other stakeholders, and could support the promotion of environmental sustainability in the Mediterranean agricultural sector

    Mycorrhizal Inoculation Improves Plant Growth and Yield of Micropropagated Early Globe Artichoke under Field Conditions

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    The micropropagation appears to be a valid alternative method for the production of large-scale, phenotypically homogeneous, and disease-free plants, particularly for spring globe artichoke genotypes. Nevertheless, micropropagated plants have some problems during the acclimatization in field environments. The inoculation with arbuscular mycorrhizal fungi appeared to overcome the transplanting stress. Therefore, a comparison was drawn between the field performances of different vegetative propagation techniques (micropropagated/mycorrhized and offshoots cultivation) of early globe artichoke clones over two growing seasons. The micropropagation/mycorrhization appeared to deliver a better field performance in terms of both plant growth and productivity traits as compared with offshoots cultivated. In particular, the micropopagated/mycorrhized plants exhibited the highest vegetative growth values than the offshoots of the cultivated ones, such as the plant height and the main floral stem length. The micropopagated/mycorrhized plants were also more productive, exceeding the head yield of offshoots cultivated ones by about 63%. However, the micropopagated/mycorrhized plants accumulated almost a month late on the first harvest respect to offshoots cultivated ones. Our data also showed that the effects of the new proposed propagation method were genotype-and season-dependent. Accordingly, some plant growth and productivity traits showed significant ‘propagation method × genotype’ and ‘propagation method × growing season’ interaction. This study revealed that the micropropagation, as well as the mycorrhization, could represent an efficient and sustainable cropping system to reintroduce and increase the productivity of autochthons landraces

    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

    Influence of an O3-atmosphere storage on microbial growth and antioxidant contents of globe artichoke as affected by genotype and harvest time

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    We investigated the effects of storage at 4 °C under ozone-enriched atmospheres onmicrobiological quality and antioxidant content of three globe artichoke cultivars ('Violet de Provence','Tema 2000' and 'Apollo'), harvested at different times (winter, early-spring, late-spring), immediatelytreated under real industrial operation conditions and analysed after 0, 3 and 7 days of storage.Response of cultivars to postharvest treatments strictly depended upon harvest time. The reduction ofboth mesophilic bacteria and yeasts and moulds was significant in heads stored under ozone-enrichedatmosphere for 3 or 7 days with major reductions for 'Tema 2000' and 'Apollo' harvested in winter andearly-spring, respectively. Ozone-treated heads of 'Violet de Provence' and 'Apollo' reported a majorascorbic acid retention and a higher total polyphenols content in winter and early-spring harvests, respectively. Finally, regardless of the harvest time, the exposure of globe artichoke heads to an ozoneenrichedatmosphere should not exceed 3 days in order to preserve the antioxidant content andmaintain the microbiological standards

    Effect of packaging film and antibrowning solution on quality maintenance of minimally processed globe

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    The effects of three different packaging materials (macroperforated, microperforated and non-perforated films) in combination with an antibrowning solution (containing 1.0% ascorbic acid and 0.2% citric acid) on the qualitative traits of minimally processed globe artichoke heads (cvs. 'Violet de Provence' and 'Tema 2000') were studied during refrigerated storage for 16 days. Results highlighted that the heads treated with the antibrowning solution and packaged in the microperforated and non-perforated films maintained better qualitative attributes (i.e.; lower microbial growth, moderate respiration rate and browning degree, higher total polyphenol content and antioxidant activity) than those not treated with the antibrowning solution and packaged in the macroperforated film. 'Tema 2000' displayed better performances in terms of browning degree and antioxidant activity, as well as lower bacterial count values, than 'Violet de Provence'. However, the choice of a proper packaging film is crucial for extending the shelf life of minimally processed globe artichoke heads. Industrial relevance The fresh heads of globe artichoke are a well-known source of healthy compounds (mainly polyphenols), but the tedious culinary preparation limits their fresh consumption to the original area of cultivation (i.e.; Mediterranean basin). Minimal processing could, therefore, ease its consumption on a wider scale, but may also result in a more perishable product. Hence, with the aim to improve the current knowledge on the qualitative maintenance of minimally processed globe artichoke heads, we examined the effects of three packaging films in combination with an antibrowning solution on physical, physiological, chemical and microbiological traits of two cultivars during refrigerated storage. Our results demonstrated the effectiveness of the micro-perforated and non-perforated films to reduce microbial growth and enhance the total polyphenol content, especially for the heads treated with the antibrowning solution. It was also shown that the cultivar choice should be considered as crucial in order to preserve the overall quality of the product. Finally, from an industrial standpoint, this study provides relevant data for extending product shelf life through a proper packaging procedure and, hence, promoting the exportation of minimally processed globe artichoke heads on a wider scale
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