Idouraine A, Khan M J, Kohlhepp E A, Weber C W
Department of Nutritional Sciences, University of Arizona, Tucson 85721, USA.
Int J Food Sci Nutr. 1996 Jul;47(4):285-93. doi: 10.3109/09637489609041027.
Acid-washing centrifugation (AWC) and cold-hot-water-enzyme incubation (WEI) methods were used to study the binding capacity (BC) of wheat bran, rice bran, and oat fiber for calcium, magnesium, copper, and zinc. Treated fibers were analyzed for protein, phytic acid (PA), total dietary fiber (TDF), and minerals. Protein content was significantly (P < 0.05) lower in WEI fibers than AWC fibers. WEI fibers had low protein concentration and no PA but higher TDF values (P < 0.05). Levels of Mg were the highest among the minerals studied. AWC treatment was significantly (P < 0.05) more efficient in stripping minerals than the WEI treatment. AWC fibers bound more minerals. Results indicate that the BC values of the fibers for minerals by the two methods were not comparable.
采用酸洗离心法（AWC）和冷热水酶孵育法（WEI）研究了麦麸、米糠和燕麦纤维对钙、镁、铜和锌的结合能力（BC）。对处理后的纤维进行蛋白质、植酸（PA）、总膳食纤维（TDF）和矿物质分析。WEI纤维中的蛋白质含量显著低于AWC纤维（P<0.05）。WEI纤维的蛋白质浓度低且不含PA，但TDF值较高（P<0.05）。在所研究的矿物质中，镁的含量最高。AWC处理在去除矿物质方面比WEI处理显著更有效（P<0.05）。AWC纤维结合的矿物质更多。结果表明，两种方法测定的纤维对矿物质的BC值不具有可比性。
