The potential of almonds, hazelnuts, and walnuts SFE-CO2 extracts as sources of bread flavouring ingredients

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Júlia C. Kessler (Author) Other; Vanessa Vieira (Author) Other; Isabel M. Martins (Author) FEUP; Yaidelin A. Manrique (Author) FEUP; Patrícia Ferreira (Author) Other; Ricardo C. Calhelha (Author) Other; Ricardo C. Calhelha (Author) Other; Andreia Afonso (Author) Other; Alírio E. Rodrigues (Author) Other; Madalena Maria Dias (Author) FEUP

Journal

Title: Food Chemistry

Vol. 417

Pages: 1-11

ISSN: 0308-8146

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus

Associated Projects

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

Valor Natural - Valorização de Recursos Naturais através da Extração de Ingredientes de Elevado Valor Acrescentado para Aplicações na Indústria Alimentar

Other information

Authenticus ID: P-00Y-3GQ

DOI: 10.1016/j.foodchem.2023.135845

Abstract (EN): Nuts have been part of the human diet since our early ancestors, and their use goes beyond nutritional purposes, for example, as aromatic sources for dairy products. This work explores the potential of almond (Prunus dulcis (Mill.) DA Webb), hazelnut (Corylus avellana L.), and walnut (Juglans regia L.) extracts as sources of food flavouring agents, suggesting a new added-value application for lower quality or excess production fruits. The extracts were obtained by supercritical fluid extraction with carbon dioxide and characterized by: quantification of the volatile fraction by HS-SPME GC-MS; sensory perception and description; and cytotoxicity against Vero cells. All extracts revealed potential as flavouring ingredients due to terpene abundance. No significant differences were observed for the minimal sensory perception, in which the odour threshold values ranged from 8.3 x 10(-4) to 6.9 x 10(-3) mu g center dot mL(-1) for walnuts and almonds extracts, respectively. In contrast, the cytotoxic potential differed significantly among the extracts, and P. dulcis extract presented lower cytotoxicity. Notes as woody, fresh, and green were identified in the volatile intensifiers obtained from the P. dulcis extract. Thus, almond extract was identified as the most promising ingredient to increase the sensory value of food products, namely bread. This potential was verified by an increase in the odour perception of bread after adding 4 mu L of extract to each 100 g of bread dough. The quantified eucalyptol and D-limonene terpenes - found in the P. dulcis extract - have improved the release of the pleasant and natural volatile compounds from bread crust and crumb compared to the control bread chemical and sensory profiles.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11