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为了研究可溶性海藻多糖的营养作用，以含１％胆固醇和０．２％胆盐的高胆固醇饲料分别加入海藻酸钠和卡拉胶两种可溶性海藻多糖，作为海藻酸钠与卡拉胶两个试验组动物饲料；不加海藻多糖的饲料用于对照组，喂养ＳＤ大鼠８周。实验表明，５％的海藻酸钠可使血脂、肝脂质和血小板聚集性下降，且不影响大鼠摄食和生长。添加５％或１０％的卡拉胶对降血脂和肝脂没有显著效果，不能降低肝／体重量比，对血小板聚集性的降低作用也不稳定（或不肯定）。１０％的卡拉胶使大鼠的平均体重增重减少了１２．１７％（Ｐ＞０．０５），少数动物出现轻度腹泻迹象
In order to study the nutritional effects of soluble seaweed polysaccharides, two kinds of soluble seaweed polysaccharides, sodium alginate and carrageenan, were respectively added to high cholesterol feed containing 1% cholesterol and 0.2% bile salt as the experimental groups of sodium alginate and carrageenan Animal feed; without seaweed polysaccharide feed for the control group, fed SD rats for 8 weeks. Experiments show that 5% sodium alginate blood lipids, liver lipids and platelet aggregation decreased, and does not affect rat feeding and growth. The addition of 5% or 10% carrageenan had no significant effect on hypolipidemic and hepatic lipids, did not reduce the hepatic / body weight ratio, and was not stable (or not sure) in reducing platelet aggregation. 10% of carrageenan reduced the average weight gain of rats by 12.17% (P> 0.05), and a few animals showed signs of mild diarrhea