Cárdenas Medellín M L, Serna Saldívar S O, Velazco de la Garza J
Instituto Tecnológico y de Estudios Superiores de Monterrey, México.
Arch Latinoam Nutr. 1998 Dec;48(4):316-23.
Two different concentrations (approx. 6 and 12%) and two presentations (raw and cooked) of dehydrated nopal were fed to laboratory rats and growth and serum total cholesterol, lipoprotein profile and glucose determined. Samples of raw and cooked nopal were chemically characterized for moisture, protein, ash, crude fiber, ether extract, total dietary fiber, reducing sugars, amino acids, minerals and gross energy. Cooking slightly affected some of the nutrients analyzed. After one month feeding, blood was withdrawn via intracardiac puncture and serum glucose, total cholesterol, HDL, LDL, and VLDL were determined. Rats fed 12% nopal had lower weight gains (P < 0.05) when compared with counterparts fed 6% nopal or the control diet. Consumption of nopal did not affect (P > 0.05) glucose, total cholesterol and HDL cholesterol levels. However, rats fed raw nopal at the 12% concentration level had a 34% reduction in LDL cholesterol levels; thus, it was concluded that raw nopal had a potentially beneficial effect for hypercholesterolemic individuals.
将两种不同浓度（约6%和12%）以及两种形态（生的和熟的）的脱水仙人掌喂给实验大鼠，并测定其生长情况以及血清总胆固醇、脂蛋白谱和葡萄糖水平。对生的和熟的仙人掌样本进行了水分、蛋白质、灰分、粗纤维、乙醚提取物、总膳食纤维、还原糖、氨基酸、矿物质和总能的化学特性分析。烹饪对部分分析的营养素略有影响。喂食一个月后，通过心脏穿刺采血，测定血清葡萄糖、总胆固醇、高密度脂蛋白（HDL）、低密度脂蛋白（LDL）和极低密度脂蛋白（VLDL）。与喂食6%仙人掌或对照饮食的大鼠相比，喂食12%仙人掌的大鼠体重增加较低（P < 0.05）。食用仙人掌对葡萄糖、总胆固醇和HDL胆固醇水平没有影响（P > 0.05）。然而，喂食12%浓度生仙人掌的大鼠LDL胆固醇水平降低了34%；因此，得出结论，生仙人掌对高胆固醇个体具有潜在的有益作用。
