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  5. 精白米及不同量米麩對大白鼠體內膽固醇代謝的影響
 
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精白米及不同量米麩對大白鼠體內膽固醇代謝的影響

Other Title
Effects of polished rice and various rice bran amounts on cholesterol metabolism in rats
Type
thesis
Date Issued
1992
Author(s)
蔣書娟
Advisor
謝明哲
鄭心嫻
Subjects
系所名稱:藥醫學研究所
碩士論文
Publisher
藥學研究所
Abstract
本實驗目的在於探討台農67號稻米之精白米及不同量米麩纖維對大老鼠(Wistar品系) 膽固醇代謝的影響。雄性大白鼠約280g,隨機分為八組,再分兩大組供實驗Ⅰ及Ⅱ。實驗Ⅰ:以玉米澱粉為醣類來源是玉米澱粉組、精白米取代玉米澱粉為精白米組,各添加1%膽固醇的玉米澱粉加膽固醇組及精白米加膽固醇組。實驗Ⅱ:精白米加膽固醇組其纖維來源為米麩,依含量分為2%米麩組、5%米麩組、10% 米麩組及20% 米麩組。實驗Ⅰ及Ⅱ皆進行四週後取下腔動脈血、肝臟,並收集最後一週的糞便,以供分析血清膽固醇、三酸甘油酯及總脂質,肝臟總膽固醇和總脂質,糞便中酸性及中性固醇。結果發現飼料中含1%膽固醇會促肝臟總膽固醇及總脂質增加,並增加糞便總中性固醇及酸性固醇排出。而精白米比玉米澱粉有較低的血清總膽固醇,及促進糞便中總膽酸排出,但不會增高糞便中總膽酸排出濃度。而米麩添加量會增加糞便總膽酸排出,且也能稀釋總膽酸排出濃度。因此由實驗結果顯示,精白米可以有效減少血清總膽固醇及增加總膽酸的排出,有利於體內膽固醇的排除,米麩則可以抑制營養素的吸收消化及增加總膽酸的排出,但對體內膽固醇的影響並不明顯。
URI
https://203.71.86.71/handle/123456789/7598
https://hdl.handle.net/11296/f349kc
File(s)
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Name

C0164562.pdf

Size

7.33 MB

Format

Adobe PDF

Checksum

(MD5):af0342f61125004bb53b567d2ab6e0af

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