Characterisation of peach dietary fibre concentrate as a food ingredient

Nuria Grigelmo-Miguel, Shela Gorinstein, Olga Martín-Belloso*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

156 Scopus citations

Abstract

Insoluble and soluble dietary fibre (DF) fractions of peach DF concentrate, obtained by an enzymatic-chemical method, were analysed for neutral sugars, uronic acids and Klason lignin. Proximate composition, energy value, colour and water- and oil-holding capacities were also determined. Total DF constituted 31-36% dry matter (DM) of the concentrate and insoluble DF was its major fraction (20-24% DM). The high proportion of soluble fraction (11-12% DM) in the peach DF concentrate, in comparison with cereal brans, was noticeable. Insoluble and total dietary fibre contents significantly decreased throughout the harvest time of the original fresh fruit. Results suggested that peach DF concentrate may be not only an excellent DF source but an ingredient in the food industry because it showed a high affinity for water (9.12-12.09 g water/g fibre) and low energy (3.723-3.494 kcal/g). However, the use of this material could affect the colour and pH of the final product. Copyright (C) 1999 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalFood Chemistry
Volume65
Issue number2
DOIs
StatePublished - May 1999

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