Effect of Buckwheat Groats Processing on the Content and Bioaccessibility of Selected Minerals
Open Access
- 24 June 2020
- Vol. 9 (6), 832
- https://doi.org/10.3390/foods9060832
Abstract
Adequate supply of minerals in the diet is necessary for the proper functioning of the human body. In recent years gluten-free diet, which rigorous forms may lead to deficiencies of mineral components (especially Mg, Mn, Zn and Cu), is becoming more and more popular. Buckwheat grains do not contain gluten, and their nutritional value is very high. They are often consumed in the form of groats, which are obtained from roasted and dehulled seeds. The purpose of the work was to determine how conducting the buckwheat groats production in industrial conditions affects the content and availability of magnesium, manganese, zinc and copper. The results indicated that husk removal had a particularly adverse effect on the total manganese content and its amount released by enzymatic digestion, whereas it had a positive effect on the post-digestion zinc level by increasing it by nearly half. Hydrothermal processes especially affected the release of analysed elements simulated by the in vitro method, and the extent of changes depended on the processing parameters. It was shown that bioaccessibility of minerals may be increased by treating buckwheat at a lower temperature for a short time, which has a particularly beneficial effect on the manganese and magnesium. Treating grains at a higher temperature reduces the bioaccessibility of all analysed elements, which was particularly noted for zinc and copper. Based on the obtained results, it should be stated that buckwheat groats should be a regular part of human diet, because they are a good source of easily digestible mineral compounds. Their consumption should be especially considered by people on a rigorous gluten-free diet, as they can prevent mineral deficiencies associated with its use.Keywords
This publication has 38 references indexed in Scilit:
- Influence of Bifidobacterium bifidum on Release of Minerals from Bread with Differing Bran ContentJournal of Toxicology and Environmental Health, Part A, 2011
- Effect of processing and cooking on the content of minerals and protein in pasta containing buckwheat bran flourJournal of the Science of Food and Agriculture, 2007
- Changes in the mineral and trace element contents of cereals, fruits and vegetables in FinlandJournal of Food Composition and Analysis, 2007
- Antioxidants in thermally treated buckwheat groatsMolecular Nutrition & Food Research, 2006
- Trace elements in foods: Zinc contents of raw foods—A comparison of data originating from different geographical regions of the worldJournal of Food Composition and Analysis, 2006
- Bioavailable zinc intake of Korean adults in relation to the phytate content of Korean foodsJournal of Food Composition and Analysis, 2004
- Trace elements in flour and bran from common and tartary buckwheatFood Chemistry, 2003
- In vitro availability of minerals from oat productsJournal of the Science of Food and Agriculture, 2002
- Minerals, phytic acid, tannin and rutin in buckwheat seed milling fractionsJournal of the Science of Food and Agriculture, 2001
- Dietary zinc and the zinc components in various foods subjected to in-vitro enzymic digestionJournal of the Science of Food and Agriculture, 1990