摘要
[目的]探讨蒸汽爆破预处理对燕麦微观结构、β-葡聚糖含量、淀粉消化特性及其对高脂饮食小鼠肥胖的影响。[方法]考察不同压力(0.3,0.5 MPa)和时间(30,60,90 s)的蒸汽爆破处理对燕麦微观结构和β-葡聚糖构成的影响,并模拟高脂饮食环境下蒸汽爆破燕麦的肥胖抑制作用。[结果]蒸汽爆破能够破坏燕麦细胞壁有序结构,增加慢消化淀粉含量、水溶性β-葡聚糖含量和溶出率,减少抗性淀粉含量,且与蒸汽爆破强度呈正相关;0.5 MPa下,水溶性β-葡聚糖含量和溶出率最高。蒸汽爆破燕麦干预高脂饮食喂养小鼠,可降低高脂饮食小鼠的体重增长,与HFD相比,体重变化率最高可降低10.5%,并减少肝脏脂肪沉积。[结论]蒸汽爆破可优化燕麦微观结构,提高水溶性β-葡聚糖含量,改善淀粉消化特性,并显著抑制高脂饮食诱导的小鼠肥胖。
[Objective]To investigate the effects of steam explosion pretreatment on the microstructure of oats,the content ofβ-glucan,the digestion characteristics of starch,and its effect on obesity in mice fed a high-fat diet.[Methods]The effects of steam explosion treatment under different pressures(0.3,0.5 MPa)and time(30,60,90 s)on the microstructure of oats and the composition ofβ-glucan are investigated,and the obesity inhibitory effect of steam-exploded oats in a simulated high-fat diet environment is studied.[Results]Steam explosion can destroy the ordered structure of the oat cell wall,increase the content of slowly digestible starch,the content and dissolution rate of water-solubleβ-glucan,and reduce the content of resistant starch.It is positively correlated with the intensity of the steam explosion.At 0.5 MPa,the content and dissolution rate of water-solubleβ-glucan are the highest.The intervention of steam-exploded oats in mice fed a high-fat diet can reduce the body weight gain of these mice.Compared with the high-fat diet group,the highest reduction in body weight can reach 10.5%,and it can also reduce fat deposition in the liver.[Conclusion]Steam explosion can optimize the microstructure of oats,increase the content of water-solubleβ-glucan,improve the digestion characteristics of starch,and significantly inhibit obesity in mice induced by a high-fat diet.
作者
王晶
匡楚玉
夏智慧
蔡嘉茹
王旭峰
罗凯云
WANG Jing;KUANG Chuyu;XIA Zhihui;CAI Jiaru;WANG Xufeng;LUO Kaiyun(School of Food Science and Technology,Hunan Agricultural University,Changsha,Hunan 410128,China;School of Food Science and Bioengineering,Changsha University of Science&Technology,Changsha,Hunan 410114,China)
出处
《食品与机械》
北大核心
2025年第5期121-126,共6页
Food and Machinery
基金
湖南省自然科学基金(编号:2022JJ40175)
国家自然科学基金(编号:32001681)。
关键词
燕麦
蒸汽爆破
淀粉消化率
抗肥胖
oat
steam explosion
starch digestibility
anti-obesity
