期刊
FOOD CHEMISTRY
卷 245, 期 -, 页码 454-462出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.10.108
关键词
Calcium; Dairy product; Digestion in vitro; Solubility pH; Bioaccessibility; Whey protein gel
资金
- project AlimaSSenS - Agence Nationale de Recherche, France (French National Research Agency) [ANR-14-CE20-0003-01]
- Lactalis, France
Numerous calcium sources are available to enrich food, but their behavior during digestion is still unknown. This study focused on the influence of the gastro-intestinal pH, the food structure and the calcium source on the bioaccessibility of the nutrient. Four calcium sources were studied: calcium carbonate, calcium citrate malate, calcium phosphate and calcium bisglycinate. These were added to dairy matrices, containing cream and whey proteins, of different forms (liquid or gel). The kinetics of solubility and ionic calcium concentration during in vitro digestion were studied, as function of gastro-intestinal pH. All calcium sources were almost fully soluble in the gastric compartment, and then became insoluble in the intestinal phase. The level of calcium insolubilisation in the intestinal phase was not significantly influenced by the matrix structure (liquid or gel), but was more dependent on the calcium source, this effect leading to different final calcium bioaccessibility from 36% to 20%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据