Dietary fiber components, microstructure, and texture of date fruits (Phoenix dactylifera, L.)Show others and affiliations
2020 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 10, no 1, p. 1-11, article id 21767Article in journal (Refereed) Published
Abstract [en]
Date fruits vary widely in the hardness of their edible parts and they are classified accordingly into soft, semi-dry, and dry varieties. Fruit texture, a significant parameter in determining consumer acceptance, is related to the tissue structure and chemical composition of the fruit, mainly the ratio of sucrose to reducing sugars. This study aimed to understand the relationship between the chemical composition, microstructure, and texture profile of 10 major Emirati date fruits. The soluble sugars, glucose and fructose, represent ca 80 g/100 g of the fruits on the basis of dry weight (DW) while the dietary fiber contents varied 5.2-7.4 g/100 dg D.W. with lignin being the main determinant of the variability. The textures of the samples were studied using instrumental texture profile analysis. While no correlation was found between the soluble sugar and texture parameters in this study, the different fiber constituents correlated variably with the different parameters of date fruit texture. Lignin, arabinoxylan, galactomannan, and pectin were found to correlate significantly with fruit hardness and the related parameters, gumminess and chewiness. Both lignin and arabinoxylan correlated with resilience, and arabinoxylan exhibited a strong correlation with cohesiveness.
Place, publisher, year, edition, pages
Nature Publishing Group, 2020. Vol. 10, no 1, p. 1-11, article id 21767
National Category
Food Science Economics and Business
Research subject
Economy; Natural Science, Food Science
Identifiers
URN: urn:nbn:se:lnu:diva-100986DOI: 10.1038/s41598-020-78713-4ISI: 000609195000123PubMedID: 33303871Scopus ID: 2-s2.0-85097486731OAI: oai:DiVA.org:lnu-100986DiVA, id: diva2:1526172
2021-02-052021-02-052022-09-15Bibliographically approved