Periodical UV-B radiation hormesis in biosynthesis of kale sprouts nutraceuticals

Copyright © 2021 The Author(s). Published by Elsevier Masson SAS.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 165(2021) vom: 23. Aug., Seite 274-285
1. Verfasser: Castillejo, Noelia (VerfasserIn)
Weitere Verfasser: Martínez-Zamora, Lorena, Artés-Hernández, Francisco
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Abiotic stresses Antioxidant Brassica oleracea var. sabellica Germination Glucosinolates Phenols Ultraviolet Antioxidants
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520 |a Copyright © 2021 The Author(s). Published by Elsevier Masson SAS.. All rights reserved. 
520 |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 
650 4 |a Journal Article 
650 4 |a Abiotic stresses 
650 4 |a Antioxidant 
650 4 |a Brassica oleracea var. sabellica 
650 4 |a Germination 
650 4 |a Glucosinolates 
650 4 |a Phenols 
650 4 |a Ultraviolet 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Glucosinolates  |2 NLM 
700 1 |a Martínez-Zamora, Lorena  |e verfasserin  |4 aut 
700 1 |a Artés-Hernández, Francisco  |e verfasserin  |4 aut 
773 0 8 |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 
773 1 8 |g volume:165  |g year:2021  |g day:23  |g month:08  |g pages:274-285 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2021.05.022  |3 Volltext 
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