Jump to main content
Jump to site search

Issue 3, 2019
Previous Article Next Article

Development of a natural preservative obtained from male chestnut flowers: optimization of a heat-assisted extraction technique

Author affiliations

Abstract

The aim of this work was to optimize the conditions for the extraction of phenolic compounds (PC) from male chestnut flowers using heat-assisted extraction in developing extracts rich in PC for potential industrial application as a natural ingredient. The study conditions of time (t), temperature (T), solvent (S, water–ethanol mixtures) and solid-to-liquid ratio (S/L) were optimized. The responses used were obtained from the quantification of the fourteen major individual PC identified by HPLC-DAD-ESI/MS (seven hydrolysable tannins and seven flavonoids). The recovery of hydrolysable tannins was higher than that of flavonoids, with trigalloyl-HHDP-glucoside being the major one. The conditions that maximized the PC content were t = 20.0 ± 37.7 min, T = 25.0 ± 5.7 °C, S = 0.0 ± 8.7% ethanol and S/L = 82.8 g L−1, producing an extract with 86.5 mg PC g−1 of extract. The results highlight the potential of valorising chestnut flower agro-residues as a productive source of PC for the development of bio-based ingredients for food/pharmaceutical/cosmeceutical industrial applications able to compete with synthetic compounds.

Graphical abstract: Development of a natural preservative obtained from male chestnut flowers: optimization of a heat-assisted extraction technique

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Nov 2018, accepted on 18 Feb 2019 and first published on 19 Feb 2019


Article type: Paper
DOI: 10.1039/C8FO02234H
Food Funct., 2019,10, 1352-1363

  •   Request permissions

    Development of a natural preservative obtained from male chestnut flowers: optimization of a heat-assisted extraction technique

    C. Caleja, L. Barros, M. A. Prieto, A. Bento, M. B. P. P. Oliveira and I. C. F. R. Ferreira, Food Funct., 2019, 10, 1352
    DOI: 10.1039/C8FO02234H

Search articles by author

Spotlight

Advertisements