Shelf life of macadamia kernels of different origin

Shahla Hosseini Bai; Stephen J Trueman; Tsvakai Gama; K Jones; David Walton; Bruce Randall; Helen M Wallace

doi:10.17660/ActaHortic.2019.1256.53

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Shelf life of macadamia kernels of different origin

Journal article

Open access

Peer reviewed

Shelf life of macadamia kernels of different origin

Shahla Hosseini Bai, Stephen J Trueman, Tsvakai Gama, K Jones, David Walton, Bruce Randall and Helen M Wallace

Acta Horticulturae, Vol.1256, pp.375-378

International Conference Postharvest Unlimited, VI (Madrid, Spain, 17-Oct-2017–20-Oct-2017)

2019

DOI: https://doi.org/10.17660/ActaHortic.2019.1256.53

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Abstract

oxidative stability

hexanal concentrations

headspace gas

accelerated ageing

Postharvest factors affect the shelf life of edible kernels. However, it is uncertain to what extent the origin of nuts can influence the shelf life of kernels. We established an accelerated ageing experiment for macadamia cultivar 'A16' kernels sourced from two geographically-distant plantations at Bundaberg and Clunes, Australia. We also purchased macadamia kernels of unknown cultivar and origin from a retail outlet. The samples were incubated at 45°C for 24 days. Headspace gas (40 mL) was collected at 1, 10 and 24 days following incubation and analysed for hexanal content using e-nose (OdourScan®) as an indicator of oxidative stability. Hexanal content increased significantly throughout the incubation period in kernels of all different origins. However, hexanal content did not differ significantly between the different kernel origins. Our results suggest that kernel origin does not affect the shelf life of kernels that commence storage at similar levels of oxidative activity.

Details

Title: Shelf life of macadamia kernels of different origin
Authors: Shahla Hosseini Bai (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Stephen J Trueman (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Tsvakai Gama (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
K Jones (Author) - Cropwatch Independent Laboratories
David Walton (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Bruce Randall (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Helen M Wallace (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Contributors: D Valero (Editor)
M Serrano (Editor)
M Gil (Editor)
Publication details: Acta Horticulturae, Vol.1256, pp.375-378
Conference details: International Conference Postharvest Unlimited, VI (Madrid, Spain, 17-Oct-2017–20-Oct-2017)
Publisher: International Society for Horticultural Science
Date published: 2019
DOI: 10.17660/ActaHortic.2019.1256.53
ISSN: 0567-7572; 2406-6168
Copyright note: Copyright (c) 2019. The author's accepted version is reproduced here in accordance with the publisher's copyright policy. The final definitive version is available at: https://doi.org/10.17660/ActaHortic.2019.1256.53
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy
Language: English
Record Identifier: 99450431502621
Output Type: Journal article

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8 Times Cited - Web of Science

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Web Of Science research areas: Agricultural Engineering; Agronomy; Horticulture

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