Eggshell fractions containing different particle sized affect mineral absorption but not bone mineral retention in growing rats
| Autor: | Jéssica Soares da Silva, Rosana da Rosa Pereira, Bruna Gressler Milbradt, Maria da Graça Kolinski Callegaro, Andressa Schneiders Silveira, Tatiana Emanuelli, Laila de Oliveira Dutra |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Male Mineralogy chemistry.chemical_element Biological Availability Absorption (skin) Calcium Bone and Bones Calcium Carbonate 03 medical and health sciences Egg Shell Calcification Physiologic Animals Mineral absorption Food science Eggshell Particle Size Rats Wistar Bone mineral 030109 nutrition & dietetics Chemistry Magnesium Body Weight Bioavailability Biomechanical Phenomena Rats Intestinal Absorption Particle size Food Science |
| Zdroj: | International journal of food sciences and nutrition. 68(2) |
| ISSN: | 1465-3478 |
| Popis: | The purpose of this study was to compare the calcium (Ca) bioavailability from eggshell fractions containing different particle size to purified CaCO3 in male growing rats. Mineral absorption, bone mineral concentration, and biomechanical properties were evaluated. Mean Ca absorption of rats fed with eggshell diets amounted to 56.2% of the ingested Ca, which is considered high. However, we observed lower Ca absorption in large-sized particle eggshell fraction (ES L) and small-sized particle eggshell fraction groups but similar Ca absorption in intermediate-sized particle eggshell fraction (ES M) compared with the CaCO3 group. Rats that received ES M and ES L had higher P and Mg absorption than the CaCO3 group. No changes were observed in the bone mineral deposition, weight or mechanical resistance. We conclude that eggshell Ca is well absorbed by the intestine and retained in bones of growing rats, being a low cost alternative to achieve adequate Ca ingestion. |
| Databáze: | OpenAIRE |
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