Andrieux C, Sacquet E
J Nutr. 1986 Jun;116(6):991-8. doi: 10.1093/jn/116.6.991.
The effects of amylomaize starch on rat mineral metabolism were studied. To elucidate the role of bacterial fermentation, the effects of amylomaize starch were compared in germfree (GF) and conventional (CV) rats. A purified diet, sterilized by irradiation and containing either maize starch (M) or amylomaize starch (A), was fed to the rats. Feed intake was similar in all groups of rats except GF rats fed amylomaize starch ad libitum, whose feed intake was higher. One group of GF rats received amylomaize starch in restricted amounts (pair-fed rats). A balance study of energy, nitrogen and minerals (Ca, P, Mg, Na, K, Fe, Mn, Zn and Cu) was performed. Apparent absorption of Mg, P, Na, K and Zn (expressed as a percentage of the amount ingested) was lower in GF rats fed amylomaize starch than in GF rats fed maize starch. Since feed intake was higher in GF rats fed amylomaize starch ad libitum than in rats fed maize starch, mineral absorption (expressed in milligrams per day) was not reduced in rats fed ad libitum, whereas it was reduced in pair-fed rats. Mineral retention was similar in GF rats fed ad libitum, but was reduced in pair-fed rats. In CV rats fed amylomaize starch, cecal weight and cecal volatile fatty acids concentration were higher than those in CV rats fed maize starch. Apparent absorption of N and P was lower and that of Ca, Mg and Fe was higher in CV rats fed amylomaize starch than in rats fed maize starch.(ABSTRACT TRUNCATED AT 250 WORDS)
研究了高直链玉米淀粉对大鼠矿物质代谢的影响。为阐明细菌发酵的作用，比较了高直链玉米淀粉在无菌（GF）大鼠和常规（CV）大鼠中的作用。将经辐照灭菌、含玉米淀粉（M）或高直链玉米淀粉（A）的纯化日粮喂给大鼠。除自由采食高直链玉米淀粉的GF大鼠采食量较高外，所有大鼠组的采食量相似。一组GF大鼠限量摄入高直链玉米淀粉（配对饲喂大鼠）。进行了能量、氮和矿物质（钙、磷、镁、钠、钾、铁、锰、锌和铜）的平衡研究。采食高直链玉米淀粉的GF大鼠对镁、磷、钠、钾和锌的表观吸收率（以摄入总量的百分比表示）低于采食玉米淀粉的GF大鼠。由于自由采食高直链玉米淀粉的GF大鼠采食量高于采食玉米淀粉的大鼠，自由采食大鼠的矿物质吸收量（以每天毫克数表示）未降低，而配对饲喂大鼠的矿物质吸收量降低。自由采食的GF大鼠矿物质潴留量相似，但配对饲喂大鼠的矿物质潴留量降低。采食高直链玉米淀粉的CV大鼠盲肠重量和盲肠挥发性脂肪酸浓度高于采食玉米淀粉的CV大鼠。采食高直链玉米淀粉的CV大鼠氮和磷的表观吸收率较低，钙、镁和铁的表观吸收率较高。（摘要截短于250字）
