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- Mårtensson, AnnaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment (author)
Different agronomic and fertilization systems affect polyphenolic profile, antioxidant capacity and mineral composition of lettuce
- Article/chapterEnglish2016
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- Elsevier BV,2016
- Elsevier,2024
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- LIBRIS-ID:oai:slubar.slu.se:81280
- https://res.slu.se/id/publ/81280URI
- https://doi.org/10.1016/j.scienta.2016.04.003DOI
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- Language:English
- Summary in:English
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- The present paper aims to investigate phenolic profiles, antioxidant capacity and mineral composition of lettuce (Lactuca sativa L, var. 'Maravilla de Verano') grown under conventional (CON) and an organic (ORG) systems with four different fertilization treatments. The polyphenolic profiles of leaf extracts were determined by ultra-high-performance liquid chromatography (UHPLC), the levels of mineral elements by means of inductively coupled plasma mass spectrometry, whereas total phenolic content and antioxidant capacity were determined spectrophotometrically. Yield, soil and meteorological parameters were measured. In all the fertilization treatments, total phenolic acids and flavonols in CON were significantly higher compared to ORG. A trend parallel to that of single phenols was observed for total phenolic content and total antioxidant capacity. Plant mineral distribution revealed significant changes between CON and ORG systems in some plant macronutrients (N, Mg, S, Na, Fe) and micronutrients (Se, Mn, Mo). The differences among fertilization treatments for all the parameters considered were also discussed. From the overall analysis of the results, the higher content of phenolics observed in CON system could be associated to the presence of more stressful conditions, in terms of plant and/or soil mineral deficits. On the other hand, the adoption of an organic management determined higher yields and a better plant mineral balance. (C) 2016 Elsevier B.V. All rights reserved.
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- Sveriges lantbruksuniversitetInstitutionen för mark och miljö (creator_code:org_t)
- Sveriges lantbruksuniversitet
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- In:Scientia Horticulturae: Elsevier BV204, s. 106-1150304-42381879-1018
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