Weber C, Bysted A, Hłlmer G
Department of Biochemistry and Nutrition, Technical University of Denmark, Lyngby.
Int J Vitam Nutr Res. 1997;67(2):123-9.
The average dietary intake of coenzyme Q10 and coenzyme Q9 of the Danish population was determined, based on food consumption data from a national dietary survey. Selected food items in edible form were analyzed for the coenzyme Q content by HPCL with UV-detection, and their contribution to the total intake calculated. The effect of cooking was a 14-32% destruction of coenzyme Q10 by frying, and no detectable destruction by boiling. The average coenzyme Q10 intake of the Danish population was estimated to 3-5 mg/day, primarily derived from meat and poultry (64% of the daily intake), while cereals, fruit, edible fats, and vegetables only make minor contributions. The intake of coenzyme Q10 is approximately 1 mg/day, primarily derived from vegetable fats and cereals. The alpha-tocopherol content of the selected food samples was analyzed by HPLC with fluorescence detection, and the calculated average intake of alpha-tocopherol was comparable to the estimate from the dietary survey (7-8 vs. 7.4 mg alpha-tocopherol/day, respectively). The commercially available dietary supplements (capsules) provide 10-30 mg CoQ10/day, thus the average diet. The optimal dietary intake of coenzyme Q10 is unknown.
基于一项全国饮食调查的食物消费数据，测定了丹麦人群辅酶Q10和辅酶Q9的平均膳食摄入量。采用高效液相色谱紫外检测法分析了可食用形式的选定食物样本中的辅酶Q含量，并计算了它们对总摄入量的贡献。烹饪的影响是，油炸会使辅酶Q10损失14%-32%，而水煮则未检测到有损失。据估计，丹麦人群辅酶Q10的平均摄入量为3-5毫克/天，主要来源于肉类和家禽（占每日摄入量的64%），而谷物、水果、食用脂肪和蔬菜的贡献较小。辅酶Q9的摄入量约为1毫克/天，主要来源于植物脂肪和谷物。采用高效液相色谱荧光检测法分析了选定食物样本中的α-生育酚含量，计算得出的α-生育酚平均摄入量与饮食调查的估计值相当（分别为7-8毫克α-生育酚/天和7.4毫克α-生育酚/天）。市售的膳食补充剂（胶囊）每天提供10-30毫克辅酶Q10，因此高于平均饮食水平。辅酶Q10的最佳膳食摄入量尚不清楚。
