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首页> 外文学位 >EFFECTS OF DIETARY FIBER, CARBOHYDRATE, LIPID AND PROTEIN LEVELS ON SERUM AND LIVER LIPIDS IN THE RAT (CHOLESTEROL, TRIGLYCERIDES).
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EFFECTS OF DIETARY FIBER, CARBOHYDRATE, LIPID AND PROTEIN LEVELS ON SERUM AND LIVER LIPIDS IN THE RAT (CHOLESTEROL, TRIGLYCERIDES).

机译：膳食纤维，碳水化合物，脂质和蛋白质水平对大鼠血清和肝脂的影响（胆固醇，甘油三酯）。

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摘要

Response surface methodology was used to study the effects of selected combinations of four diet components (fiber, carbohydrate, lipid and protein) in the diet of male weanling Sprague-Dawley rats. Fiber (X) in the form of wheat bran, carbohydrate (X) from corn starch and sucrose, lipid (X) from beef tallow, corn oil, and safflower oil, and protein (X) from casein. Minimum serum and liver cholesterol and triglyceride levels (Y, Y, Y, Y) and maximum serum HDL cholesterol levels (Y) and feed efficiency (Y) were considered.;Because the dietary components (X s) were not statistically independent those variables (X s) were studied in combinations of three or less. Of the four dietary components, there were four possible combinations of three variables at a time, (3-X), and six possible combinations of two variables at a time, (2-X). All ten possibilities were studied.;The three-variable (3-X) combinations were the most useful in locating the desired maximum or minimum dependent variable responses (Y s) in terms of the proportions of the diet components. Response surface regression analyses indicated that of the dietary variables (X s), carbohydrate (X), lipid (X) and protein (X) were better than fiber (X) for predicting the dependent responses (Y s).;Surface response contour and three dimensional plots were developed for each of the dependent variables (Y s) except for serum triglycerides (Y), which was not predictable based on the proportion of dietary components. The contours were used to determine combinations of the diet components that would produce an overall diet that would generate desired responses of the dependent variables (Y s) in the desired maximum or minimum region. Generally, the statistical analyses represented by the response surface contour and three dimensional plots indicated that desired responses for the dependent variables (Y s) could be obtained with an overall diet low in bran NDF fiber (4%) and lipid (6-10%) and high in carbohydrate (54-55%) and protein (26-30%).;Serum triglycerides (Y) were unpredictable based on the proportions of the dietary components, as indicated by the low multiple correlation coefficient (maximum R = 0.078004). Therefore, data for serum triglycerides were analyzed further.
机译：响应面方法用于研究雄性断奶Sprague-Dawley大鼠饮食中四种饮食成分（纤维，碳水化合物，脂质和蛋白质）的选定组合的影响。麦麸形式的纤维（X），玉米淀粉和蔗糖的碳水化合物（X），牛脂，玉米油和红花油的脂质（X）以及酪蛋白的蛋白质（X）。考虑最低血清和肝胆固醇和甘油三酸酯水平（Y，Y，Y，Y）和最高血清HDL胆固醇水平（Y）和饲料效率（Y）.;因为饮食成分（X s）在统计学上不独立于那些变量（X s）以三个或更少的组合进行研究。在四种饮食成分中，一次有三个变量的三个可能组合（3-X），一次有两个变量的六个可能组合（2-X）。研究了所有十种可能性。三变量（3-X）组合对于根据饮食成分的比例确定所需的最大或最小因变量响应（Y s）最有用。响应面回归分析表明，在饮食变量（X s）中，碳水化合物（X），脂质（X）和蛋白质（X）优于纤维（X）可以预测因变量（Y s）。并为每个因变量（Y s）绘制了三维图，但血清甘油三酸酯（Y）除外，这是基于饮食成分的比例无法预测的。等高线用于确定将产生总体饮食的饮食成分的组合，该整体饮食将在期望的最大或最小区域中产生因变量（Y s）的期望响应。通常，由响应表面轮廓和三维图表示的统计分析表明，可以通过低麸皮NDF纤维（4％）和脂质（6-10％）的总体饮食获得因变量（Y s）的所需响应。 ），高碳水化合物（54-55％）和蛋白质（26-30％）.;根据饮食成分的比例，血清甘油三酸酯（Y）不可预测，如多重相关系数低（最大R = 0.078004）所示）。因此，需要进一步分析血清甘油三酸酯的数据。

著录项

  • 作者

    GEORGE-STEWART, JANICE RAE.;

  • 作者单位

    Kansas State University.;

  • 授予单位 Kansas State University.;
  • 学科 Health Sciences Nutrition.
  • 学位 Ph.D.
  • 年度 1983
  • 页码 92 p.
  • 总页数 92
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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