HMW-GS组成对谷朊粉高水分挤压组织化产品特性的影响  

Effects of HMW-GS Composition on Properties of High-Moisture Extruded Textured Gluten

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作  者:郑建梅[1] 魏益民[1,2] 张波[2] 

机构地区:[1]西北农林科技大学食品科学与工程学院,陕西杨凌712100 [2]中国农业科学院农产品加工研究所,北京100193

出  处:《中国食品学报》2013年第4期50-57,共8页Journal of Chinese Institute Of Food Science and Technology

基  金:国家小麦产业技术体系(CARS-03);公益性行业科研专项经费(201303071)

摘  要:目的:研究不同高分子质量谷蛋白亚基(HMW-GS)组成对谷朊粉高水分挤压组织化产品特性的影响。方法:选取具有不同HMW-GS构成的12个小麦品种,将其制粉后制作成谷朊粉,作为实验材料,采用DSE-25型双螺杆挤压实验室工作站进行挤压组织化,测定谷朊粉的理化特性、挤压组织化产品特性,分析不同小麦品种HMW-GS构成与谷朊粉高水分挤压组织化产品特性的关系。结果:①不同亚基位点类型对挤压产品的WHC和色泽(L*,a*和b*)有显著影响。5+10亚基对挤压产品WHC的作用显著高于7+8,14+15和2+12亚基;7+9亚基的作用也显著高于2+12亚基的作用;7+8,7+9和5+10亚基对于挤压产品L*的作用显著高于14+15亚基;14+15和5+10亚基对于挤压产品a*的作用显著高于7+8和2+12亚基的作用,且7+9亚基的作用也显著高于7+8亚基;7+8,7+9,2+12和5+10亚基对于挤压产品b*的作用显著高于14+15亚基的作用。②不同亚基组合类型对挤压产品的WHC、色泽、硬度和咀嚼度有显著影响。7+9,5+10组合对产品WHC的作用显著高于7+8,2+12组合、7+9,2+12组合和14+15,2+12组合的作用;7+8,2+12组合和7+9,5+10组合对于L*的作用显著高于14+15,2+12组合和14+15,5+10组合的作用;14+15,2+12组合、7+9,5+10和14+15,5+10组合对于产品a*的作用显著高于7+8,2+12组合的作用;7+8,2+12组合和7+8,5+10组合对于产品b*的作用显著高于7+9,2+12组合、14+15,2+12组合和14+15,5+10组合的作用,7+9,2+12组合的作用显著高于14+15,2+12组合的作用;7+8,2+12组合、7+9,2+12组合和7+9,5+10组合对于产品硬度的作用显著高于7+8,2+12组合的作用;7+9,2+12组合对于产品咀嚼度的作用显著高于7+8,5+10组合的作用。③谷朊粉的理化特性对挤压产品的WHC、a*、b*、组织化度和弹性有显著影响,而对L*、硬度、咀嚼度没有显著影响。结论:不同亚基位点类型对挤压产品的WHC和色泽有显著影响,不同亚基组合类型对WHC、色泽、硬度和咀�To figure out the effects of different composition of HMW-GS on the properties of extrusion texturization products. 12 wheat cultivars with different high-molecular-weight glutenin subunits (HMW-GS) were milled into gluten flour. The gluten was processed through a Brabender DSE-25 twin-screw extruder. The physical and chemical properties of gluten and properties of extruded products were determined, then the relationships between the compositions of high molecular weight subunits (HMW-GS) from different wheat cultivars and the properties of extrusion texturization gluten products with high moisture was analyzed. The result show that:①The types of subunits influenced water holding capacity (WHC) and color (L*,a* and b* of products significantly. For WHC of products, 5+10 is significantly higher than that of 7+8,14+15 and 2+12,7+9 is significantly higher than that of 2+12. For L* of products, 7+8 is significantly higher than that of 14+15. For WHC of products, 7+8,7+9 and 5+10 are significantly higher than that of 14+15. For a* of products, 14+15 and 5+10 are significantly higher than that of 7+8 and 2+12, and 7+9 is significantly higher than that of 7+8. For b* of products, 7+8,7+9,2+12 and 5+10 are significantly higher than that of 14+15. ②The subunit combinations in- fluenced water holding capacity (WHC) and color (L*, a* and b*, hardness and chewiness.of products significantly. For WHC of products, (7+9, 5+10) is higher than that of (7+8, 2+12), (7+9, 2+12) and (14+15, 2+12). For L* of products, (7+8, 2+12) and (7+9, 5+10) are higher than that of (14+15, 2+12) and (14+15, 5+10). For a* of prod- ucts, (14+15, 2+12), (7+9, 5+10) and (14+15, 5+10) are higher than that of (7+8, 2+12). For b* of products, (7+ 8, 2+12) and (7+8, 5+10) are higher than that of (14+15, 2+12), (14+15, 5+10) and (14�

关 键 词:小麦 谷朊粉 高分子量谷蛋白亚基 挤压 组织化蛋白 

分 类 号:TS210.9[轻工技术与工程—粮食、油脂及植物蛋白工程]

 

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