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- Title
Accumulation of anthocyanins and flavonols in black currants ( Ribes nigrum L.) by pre-harvest methyl jasmonate treatments.
- Authors
Flores, Gema; Ruiz del Castillo, María Luisa
- Abstract
BACKGROUND Chemical elicitation is one of the most effective methods currently used to enrich plant foods in bioactive compounds. Methyl jasmonate ( MJ) has been described as a very useful elicitor of some plant compounds, polyphenols among them. The objective of this study was to determine the effects of pre-harvest MJ application on the increase in the main flavonoids and the antioxidant properties of black currant ( Ribes nigrum) cultivars. RESULTS Significant enhancement of individual and total anthocyanins was measured after elicitation with MJ, particularly when a concentration of 0.2 mmol L−1 was used. Total anthocyanins increased from 28288.74 ± 253.65 to 43561.08 ± 145.87 mg kg−1 in Ben Hope black currants after elicitation with 0.2 mmol L−1 MJ. Similarly, an increase from 35986.04 ± 287.98 to 41320.22 ± 109.38 mg kg−1 was estimated in Ben Alder cultivar. Black currant flavonols were not individually affected by the treatment; however, total flavonols increased from 3115.21 ± 12.11 to 3268.41 ± 8.91 mg kg−1 in Ben Hope and from 3016.38 ± 10.07 to 3110.95 ± 8.57 mg kg−1 in Ben Alder. Antioxidant properties of black currants as measured by DPPH and ABTS assays improved proportionally to the increase in flavonoid content after MJ elicitation. CONCLUSION Pre-harvest elicitation with MJ is proposed as a useful tool to enhance contents of anthocyanins and flavonols as well as free radical-scavenging activity of black currants. The functional black currants obtained here can be interesting for industry, for consumption as fresh fruits and for production of juice and jam. © 2015 Society of Chemical Industry
- Subjects
BOTANICAL chemistry; FERTILIZERS; BIOACTIVE compounds; POLYPHENOLS; ELICITORS (Botany); ANTHOCYANINS
- Publication
Journal of the Science of Food & Agriculture, 2016, Vol 96, Issue 12, p4026
- ISSN
0022-5142
- Publication type
Article
- DOI
10.1002/jsfa.7595