Calcium, dietary fiber and phytate content in various flours of cereals, pseudocereals and other

被引：0
|
作者：
Dyner, Luis [1 ]
Cagnasso, Carolina [1 ]
Ferreyra, Veronica [2 ]
Martin de Portela, Maria Luz Pita [1 ,3 ]
Apro, Nicolas [2 ]
Olivera Carrion, Margarita [1 ]
机构：
[1] Univ Buenos Aires, Fac Farm & Bioquim, Dept Sanidad Nutr Bromatol & Toxicol, Catedra Bromat, RA-1053 Buenos Aires, DF, Argentina
[2] Inst Nacl Tecnol Ind INTI, Ctr Cere & Oleaginosas, Ciudad 9 Julio, Buenos Aires, DF, Argentina
[3] Univ Buenos Aires, Fac Farm & Bioquim, Dept Sanidad Nutr Bromatol & Toxicol, Catedra Bromatol, Junin 956 CP 1113 2 Piso, RA-1053 Buenos Aires, DF, Argentina
来源：
ACTA BIOQUIMICA CLINICA LATINOAMERICANA | 2016年 / 50卷 / 03期
关键词：
calcium; phytate; dietary fibre; flours; cereals; pseudocereals; extrusion; FOODS;
D O I：
暂无
中图分类号：
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号：
1001 ;
摘要：
Calcium (Ca) content and compounds that affect its absorption are relevant in wholemeal flours and tree nuts. These foods are specially recommended for vegetarians, people with intolerance to dairy products and celiac patients. Ca, dietary fibre and inositol profile (IP) where analyzed in wholemeal/refined/extruded flours, in cereals (wheat, maize, rice, sorghum), pseudocereals (buckwheat, amaranth), leguminous (peas) and oilseeds (soy, flax). Ca was assessed by atomic absorption spectrometry, dietary fibre using an enzymatic method and IP profile by HPLC. Phytic acid content (AF) was obtained using conversion factors. Molar ratio AF/Ca was calculated as an index of potential Ca availability. Ca (mg/100 g) was very low in cereal flours (<20 in refined wheat, wholemeal maize and rice and refined and wholemeal sorghum). In pseudocereals, Ca varied (4 buckwheat, 115 amaranth). It was high in peas, soy and flax (102-257), but this was not enough to improve Ca in cookies made with these mix flours. Dietary fibre content was coincidental with the extraction grade (1.4-13.3/100 g). In all cases, AF/Ca molar ratios exceeded 0.17-0.24, limit value that represents the negative effect of AF over calcium availability.
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页码：435 / 443
页数：9
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