蒸汽爆破预处理亚麻籽粕对高脂糖饮食大鼠降糖降脂作用的实验研究

IF 4.6 3区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Guangwei Yu, T. Guo, X. Zhou, Q. Huang, X. Shi
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引用次数: 1

摘要

随着亚健康人群和慢性病人群的增加,消费者对保健食品,特别是具有保健功能的食品的需求日益增加。亚麻籽是一种复杂的混合物,主要由亚麻籽油、亚麻籽蛋白、膳食纤维(包括纤维素和亚麻籽胶)、碳水化合物和第二异脂树脂醇二葡糖苷(SDG)组成。为探讨膨化亚麻籽粕(EFM)干预对高脂高糖(HFHS)日粮大鼠降血糖降脂功能的影响,将EFM分别饲喂6组(z = 8) Sprague-Dawley (SD)大鼠:正常对照组、HFHS模型、阳性治疗对照组和低、中、高剂量EFM(分别为5%、10%和20%质量分数EFM)组。结果(8周后):(1)与阳性治疗相比,中、高剂量EFM对血糖水平的抑制作用相似(5.94±0.32 mmol/L);(2)各剂量EFM均显著降低SD大鼠血浆总胆固醇、甘油三酯和低密度脂蛋白胆固醇水平;(3)EFM显著提高SD大鼠血浆谷胱甘肽过氧化物酶、超氧化物歧化酶和过氧化氢酶活性,提高谷胱甘肽水平,降低丙二醛含量(P < 0.05)。由此可见,EFM减轻了HFHS日粮对SD大鼠生理功能的不良影响,有效调节了血糖和脂质代谢,增强了血浆抗氧化能力,减轻了氧化应激,且EFM剂量组之间存在一定的剂量效应关系。肝脏组织学形态学显示,EFM还能改善大鼠肝脏脂滴的大小和密度,抑制脂肪肝的发生。这些结果表明,EFM是开发降血糖和降脂食品的潜在有用原料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The experimental application of steam explosion-pre-treated flaxseed meal with hypoglycaemic and lipid-lowering functions in rats on a high-fat-sugar diet
With the increase in populations with suboptimal health and chronic diseases, consumer demands for health foods, especially food products with health functions. The flaxseed was a complex mixture mainly consisting of flaxseed oil, flaxseed protein, dietary fibre (including cellulose and flaxseed gum), carbohydrates and secoisolariciresinol diglucoside (SDG). To investigate the effects of expanded flaxseed meal (EFM) intervention on the hypoglycaemic and lipid-lowering functions of rats on a high-fat, high-sugar (HFHS) diet, EFM was fed to six groups (z = 8) of Sprague–Dawley (SD) rats: normal control, HFHS model, positive treatment control, and low-, medium-, and high-dose EFM (5%, 10% and 20% mass fraction EFM, respectively) groups. The results (8 weeks later) were as follows: (1) mediumand high-dose EFM achieved similar inhibitive effects on blood glucose levels compared with positive treatment (5.94±0.32 mmol/L); (2) all EFM doses significantly reduced total cholesterol, triglyceride and low-density lipoprotein cholesterol levels in the blood plasma of SD rats and (3) EFM significantly increased glutathione peroxidase, superoxide dismutase and catalase activities, increased glutathione levels, and reduced the malondialdehyde content in the plasma of SD rats (P < 0.05). Therefore, EFM mitigated the adverse effects produced by HFHS diet on physiological functions, effectively regulated blood glucose and lipid metabolism, enhanced plasma antioxidant capacity and alleviated oxidative stress in SD rats with a certain dose–effect relationship among the EFM dose groups. Hepatic histological morphologies indicated that EFM also improved the size and density of lipid droplets in the liver of the rats and inhibited the onset of fatty liver. These results suggest that EFM is a potentially useful raw material in the development of blood glucose and lipid-lowering food products.
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来源期刊
CiteScore
4.60
自引率
7.50%
发文量
61
审稿时长
1 months
期刊介绍: ''Quality Assurance and Safety of Crops & Foods'' is an international peer-reviewed journal publishing research and review papers associated with the quality and safety of food and food sources including cereals, grains, oilseeds, fruits, root crops and animal sources. It targets both primary materials and their conversion to human foods. There is a strong focus on the development and application of new analytical tools and their potential for quality assessment, assurance, control and safety. The scope includes issues of risk assessment, traceability, authenticity, food security and socio-economic impacts. Manuscripts presenting novel data and information that are likely to significantly contribute to scientific knowledge in areas of food quality and safety will be considered. ''Quality Assurance and Safety of Crops & Foods'' provides a forum for all those working in the specialist field of food quality and safety to report on the progress and outcomes of their research.
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