Abstract
Element bioaccessibility in some nuts and seeds has been determined by performing a physiologically based extraction test. Nine elements (B, Ca, Co, Cu, Fe, Mn, Mg, Ni and Zn) in gastric and intestinal phase extractions of nuts and seeds were determined using inductively coupled plasma-atomic emission spectrometry and inductively coupled plasma-mass spectrometry. Hazelnuts, almonds, sunflower seeds, peanuts, cashew nuts, Brazil nuts, walnuts, chickpeas, pumpkin seeds and pistachio nuts were used as the materials in this study. The bioaccessible portions of magnesium and calcium were higher than for the other elements whereas B bioaccessibility was the lowest for each of the different types of nuts and seeds. Based on an ingestion rate of 10 g day−1, the amounts of B, Ca, Co, Cu, Fe, Mn, Mg, Ni and Zn from the nuts and seeds accessible to the body were found to be lower than the Tolerable Upper Intake Levels. The data were also subjected to chemometric evaluation using tools such as Principal Component Analysis (PCA) and Linear Discriminant Analyses (LDA) in an attempt to classify the nuts and seeds according to these elements bioaccessibility and to find out which elements are more bioaccessible in gastric and intestinal ingestions.
DOI
10.1016/j.jfca.2015.09.011
Publication Date
2015-09-26
Publication Title
Journal of Food Composition and Analysis
Volume
45
ISSN
0889-1575
Embargo Period
2016-09-26
Organisational Unit
School of Geography, Earth and Environmental Sciences
Keywords
Bioaccessibility, Elements, Food analysis, Food composition, Linear discriminant analyses, Nuts and seeds, Principal component analysis
First Page
58
Last Page
65
Recommended Citation
Kafaoglu, B., Fisher, A., Hill, S., & Kara, D. (2015) 'Determination and evaluation of element bioaccessibility in some nuts and seeds by in-vitro gastro-intestinal method', Journal of Food Composition and Analysis, 45, pp. 58-65. Available at: https://doi.org/10.1016/j.jfca.2015.09.011
