Abstract
Samphire (Tecticornia sp.) is an underutilised Australian indigenous edible halophyte and has been used as complementary vegetable, salads or salt substitute. The present study aimed to characterise as well as to differentiate wild harvested samphire samples from different sub-locations in the Kimberly Region of Western Australia using mid-infrared spectroscopy. Antioxidant capacity measured as total phenolic content (TPC) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity, and colour attributes were determined in the harvested samples using routine reference methods. This data was used to develop mid-infrared calibration models using partial least squares regression. The present study shows the ability of mid-infrared spectroscopy to predict TPC and DPPH radical scavenging capacity in wild harvested samphire samples.
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Acknowledgements
The authors acknowledge the Traditional Owners of the lands on which the Tecticornia sp. plants were harvested and respect the knowledge and experience the Traditional Owners hold regarding the care, harvest and use of these plants.
Funding
This project was funded by the University of Queensland, Australia, the Australian Research Council (ARC) Industrial Transformation Training Centre for Uniquely Australian Foods (IC180100045) and the Accelerating Higher Education Expansion and Development Program (AHEAD), Sri Lanka.
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Sukirtha Srivarathan declares that she has no conflict of interest. Anh Dao T. Phan declares that she has no conflict of interest. Olivia Wright declares that she has no conflict of interest. Yasmina Sultanbawa declares that she has no conflict. Michael E. Netzel declares that he has no conflict of interest. Daniel Cozzolino declares that he has no conflict of interest.
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Srivarathan, S., Phan, A.D.T., Wright, O. et al. The Measurement of Antioxidant Capacity and Colour Attributes in Wild Harvest Samphire (Tecticornia sp.) Samples Using Mid-infrared Spectroscopy. Food Anal. Methods 14, 2328–2334 (2021). https://doi.org/10.1007/s12161-021-02065-6
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DOI: https://doi.org/10.1007/s12161-021-02065-6