| 湿热处理多孔玉米淀粉对大鼠脂质代谢的影响 |
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| 引用本文： | 刘庆庆,游玉明,陆红佳,田宝明,陈朝军,刘 雄.湿热处理多孔玉米淀粉对大鼠脂质代谢的影响[J].食品科学,2016,37(13):214-219. |
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| 作者姓名： | 刘庆庆 游玉明 陆红佳 田宝明 陈朝军 刘 雄 |
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| 作者单位： | 1.铜仁学院生物与农林工程学院，贵州 铜仁 554300；2.西南大学食品科学学院，重庆 400715；
3.重庆文理学院林学与生命科学学院，重庆 402160 |
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| 基金项目： | 野生动植物保护与利用重点学科建设项目（黔学位合字ZDXK[2013]09号）；贵州省教育厅特色实验室建设项目“梵
净山特色动植物资源重点实验室”（黔教合KY字[2011]005号）；重庆市教委科学技术研究项目（KJ1401101） |
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| 摘 要： | 目的：探讨湿热处理多孔玉米淀粉对大鼠脂质代谢的影响。方法：32 只雌性Sprague-Dawley（SD）大鼠随机分为4 组，其中1 组为对照组饲喂基础饲料，另外3 组为高脂组，分别为高脂空白组、多孔淀粉组（porousstarch，PS）和湿热处理多孔淀粉组（heat moisture treatment starch，HTMPS），饲喂基础饲料，适应1 周后，对照组饲喂基础饲料，高脂组分别饲喂相应高脂饲料。饲喂4 周后解剖，检测大鼠血脂、肝脂及小肠和粪便中胆汁酸等指标。结果：饲喂多孔淀粉和湿热处理多孔淀粉组大鼠血清总胆固醇（total cholesterol，TC）、甘油三酯（triglyceride，TG）、非高密度脂蛋白胆固醇（non-high-density lipoprotein cholesterol，non-HDL-C）、抗动脉硬化指数（atherosclerosis index，AI）、甘油三酯/高密度脂蛋白胆固醇（TG/HDL-C）、肝脏TC、肝脏总TC和腹部脂肪含量显著下降（P＜0.05），粪便中粪醇、胆固醇等中性固醇排泄量增加，粪便中胆汁酸排泄量显著增加（P＜0.05）。PS组与HTMPS组相比，大鼠血浆中TC、AI、腹部脂肪含量、肝脏总脂肪含量较低，粪便中胆汁酸及小肠内容物中胆汁酸较高。结论：多孔淀粉降血脂降胆固醇效果优于湿热处理多孔玉米淀粉，可降低高脂饮食造成的高脂血症风险，对预防心血管疾病有一定的作用。
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| 关 键 词： | 多孔玉米淀粉 湿热处理 血脂 中性固醇 |
Effect of Heat-Moisture Treated Corn Porous Starch on Lipid Metabolism in Rats |
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| LIU Qingqing,YOU Yuming,LU Hongjia,TIAN Baoming,CHEN Zhaojun,LIU Xiong.Effect of Heat-Moisture Treated Corn Porous Starch on Lipid Metabolism in Rats[J].Food Science,2016,37(13):214-219. |
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| Authors: | LIU Qingqing YOU Yuming LU Hongjia TIAN Baoming CHEN Zhaojun LIU Xiong |
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| Affiliation: | 1. College of Biology and A&F Engineering, Tongren University, Tongren 554300, China; 2. College of Food Science,
Southwest University, Chongqing 400715, China; 3. College of Forestry and Life Science,
Chongqing University of Arts and Science, Chongqing 402160, China |
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| Abstract: | Objective: To investigate the effect of heat-moisture treated corn porous starch on lipid metabolism in rats.
Methods: Totally 32 female Sprague-Dawley rats were randomly divided into 4 groups including control group and three
other groups as high-fat blank group, high-fat porous starch (PS) group and high-fat heat-moisture treated corn porous starch
(HTMPS) group. After adaptive feeding with a basal diet for a week, the rats from the control group were still fed with the
basal diet and those from high-fat groups were given a high fat diet. After 4 weeks, all rats were sacrificed for the analysis
of triglyceride (TG), cholesterol (TC) in serum and liver, and bile acid in small intestine and feces. Results: By feeding corn
porous starch and heat-moisture treated corn porous starch, the contents of TC, TG and non-HDL-C in serum, atherosclerosis
index (AI) and TG/HDL-C ratio in serum as well as TC content in liver and abdominal fat content decreased significantly
(P < 0.05); the fecal excretion of neutral steroid and bile acid increased significantly (P < 0.05). Compared with HTMPS
group, the rats from PS group revealed a reduction in serum TC level, AI, TG/HDL-C ratio and abdominal fat, and an
increase in fecal bile acid excretion and bile acid in small intestinal contents. Conclusion: PS is more successful in reducing
cholesterol than HTMPS. Therefore, porous starch can reduce the risk of hyperlipidemia caused by high-fat diet, and has a
significant role in preventing cardiovascular diseases. |
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| Keywords: | corn porous starch heat-moisture treatment serum lipids neutral steroid |
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