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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2021.05.022
|2 doi
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|a pubmed24n1087.xml
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|a (NLM)34090151
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|a (PII)S0981-9428(21)00270-9
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Castillejo, Noelia
|e verfasserin
|4 aut
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|a Periodical UV-B radiation hormesis in biosynthesis of kale sprouts nutraceuticals
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 15.06.2021
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|a Date Revised 15.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 The Author(s). Published by Elsevier Masson SAS.. All rights reserved.
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|a The objective of the present study was to evaluate the periodical UV-B radiation hormesis during kale seeds germination in their main content of secondary metabolite compounds (phenols; glucosinolates; total antioxidant capacity -TAC-) and their changes during a refrigerated shelf-life. The total UV-B doses received were 0, 5, 10, and 15 kJ m-2 (CTRL, UVB5, UVB10, and UVB15) in where the 25% was applied on the 3rd, 5th, 7th, and 10th sprouting day. UV radiation did not affect the morphological development of the sprouts. UVB10 and UVB15 treatments increased their phenolic content (>30%). Likewise, TAC was increased by UV-B lighting ~10% (DPPH) and ~20% (FRAP). The hydroxycinnamic acid content in UVB15-treated sprouts increased by 52%, while UVB5 reported an increase of 34% in the kaempferol-3,7-di-O-glucoside concentration, compared to CTRL. After 10 d at 4 °C of shelf-life, content of gallic acid hexoside I and gallic acid increased by 55 and 78% compared to UV-untreated kale sprouts, respectively. Glucoraphanin was the main glucosinolate found in kale sprouts and seeds, followed by 4-hydroxy-glucobrassicin, whose biosynthesis was enhanced by UVB10 (~24 and ~27%) and UVB15 (~36 and ~30%), respectively, compared to CTRL. In conclusion, periodical low UV-B illumination represents a useful tool to stimulate phytochemicals biosynthesis in kale sprouts as an important source of bioactive compounds with potential health benefits
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|a Journal Article
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|a Abiotic stresses
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|a Antioxidant
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|a Brassica oleracea var. sabellica
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|a Germination
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|a Glucosinolates
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|a Phenols
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|a Ultraviolet
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|a Antioxidants
|2 NLM
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|a Glucosinolates
|2 NLM
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|a Martínez-Zamora, Lorena
|e verfasserin
|4 aut
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|a Artés-Hernández, Francisco
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 165(2021) vom: 23. Aug., Seite 274-285
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:165
|g year:2021
|g day:23
|g month:08
|g pages:274-285
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|u http://dx.doi.org/10.1016/j.plaphy.2021.05.022
|3 Volltext
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