共查询到20条相似文献,搜索用时 15 毫秒
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对《小麦粉馒头》国家标准的积极意义、约束范围、起草过程、主要内容进行了详细解读,并讨论了该标准的发布对市场上小麦粉馒头价格的影响。 相似文献
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碳酸氢钠添加对荞麦馒头品质的影响 总被引:1,自引:0,他引:1
研究不同添加的碳酸氢钠对荞麦馒头比容、高径比、质构等品质特性的影响,并进行感官评定。采用快速黏度分析仪(RVA)研究碳酸氢钠添加对淀粉糊化特性的影响,同时采用十二烷基磺酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)研究其对荞麦馒头中蛋白质亚基结构的影响,并通过激光共聚焦(CLSM)分析荞麦馒头微观结构的变化,探究碳酸氢钠添加对荞麦馒头的影响机制。结果表明,当添加量为0.6%时,荞麦馒头比容、高径比及质构品质得到明显改善(P0.05)。RVA分析表明,随着碳酸氢钠添加量的增加,峰值黏度增加,糊化温度升高。SDS-PAGE图谱显示随着碳酸氢钠添加量的增加,高分子量亚基条带颜色变深,低分子量亚基条带变浅,说明其可能促进了荞麦馒头中蛋白质的交联。CLSM表明,碳酸氢钠的添加促使荞麦馒头形成更加连续致密的蛋白质网络结构,使糊化溶胀后的淀粉颗粒镶嵌其中,从而改善荞麦馒头品质。 相似文献
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Hongwei Zhou Xiaolong Wang Yanning Yang Jinfu Ban Sihai Guo Tianqi Song Shuangxing Zhang Yang Yu Boli Guo Yingquan Zhang Xiaoke Zhang 《Journal of food science》2024,89(2):1047-1057
The aim of this study was to clarify the effects of the high-molecular-weight glutenin subunits (HMW-GSs) 1Dx3+1Dy12 (3+12) and 1Dx4+1Dy12 (4+12) at the Glu-D1 locus on gluten and Chinese steamed bread (CSB) quality. The grain protein content and composition, gluten content and gluten index, farinograph properties, and CSB quality were investigated using four wheat near-isogenic lines (NILs) carrying HMW-GSs 1Dx2+1Dy12 (2+12), 3+12, 4+12 and 1Dx5+1Dy10 (5+10), respectively. The unextractable polymeric protein (UPP) and glutenin macropolymer (GMP) content, gluten index, dough development time, stability time, and farinograph quality number of four NILs all ranked as 5+10 > 3+12 > 2+12/4+12, such as the gluten index ranked as 5+10(44.88%) > 3+12(40.07%) > 2+12(37.46%)/4+12(35.85%); however, their contributions to the quality of CSB were ranked as 3+12 > 5+10 > 2+12/4+12, such as the specific volume ranked as 3+12(2.64 mL/g) > 5+10(2.49 mL/g) > 2+12(2.36 mL/g)/4+12(2.35 mL/g), which indicated that a suitable gluten strength (3+12) was crucial to making high-quality CSB. In addition, subunits 4+12 had a similar quality performance to low-quality subunits 2+12. All these findings suggested that, except for the acknowledged high-quality subunits 5+10, the introduction of 3+12 at the Glu-D1 locus is an efficient way for quality improvement of gluten as well as CSB. 相似文献
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采用不同的配比将玉米粉与小麦粉搭配,通过测定玉米-小麦混合粉指标和馒头指标,以研究玉米粉对混合粉及其馒头品质的影响。结果表明:随着玉米粉比例的增加,混合粉的吸水率、稳定时间、粉质指数呈逐渐减小的趋势;最大抗延伸性、拉伸面积、沉降值、湿面筋、面筋指数也逐渐降低;峰值黏度、稀懈值、回升值、降落数值等都有所下降,而糊化温度和弱化度有所上升。玉米粉的使用在一定程度上影响了面团的流变学性能,降低了面筋的品质,但是在比例不超过15%时影响并不十分明显,辅以一定的改良技术,不但可以生产出食用品质优良的馒头,而且可以改善馒头的营养特性。 相似文献
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馒头是我国居民的传统主食之一。随着馒头机械化生产和市场化销售比例增加,馒头产业得到较快发展。在工业化馒头制作条件下,小麦品种特性及其面粉的馒头制作适宜性,尤其是面粉质量的稳定性,显著影响馒头的产品质量、消费体验及工业化生产的经济效益。选用豫西南地区生产上种植面积大、代表性较强的小麦品种为原料,分析其小麦粉品种的理化特性,研究馒头制作的适宜性及其小麦粉品种质量和馒头特性之间的关系。结果表明,豫西南小麦粉湿面筋含量较高,但面筋指数还有待改进;优质小麦占比有待提高;小麦粉色泽红绿值(a*值)、黄蓝值(b*值)、面筋指数、粉质参数的面团软化度、拉伸参数的拉伸面积及吹泡参数的面团延展性,是评价馒头粉质量的重要参考指标。小麦品种郑麦119、平麦998、陕道198、郑麦1342、郑麦1860比较适合制作馒头。 相似文献
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测定8种不同面粉的基本性质、面团流变特性、发酵特性,并用其制备成荞麦馒头预拌粉制作荞麦馒头,通过测定荞麦馒头的比容、质构特性、感官品质等指标,探究面粉特性对荞麦馒头预拌粉品质的影响。试验结果表明:湿面筋含量在33%~34%,蛋白质含量在11%~12%的面粉其蛋白质弱化度较小,面团形成时间和稳定时间较长,面团的持气率较好,面团开始漏气时间较晚;对应编号制作的荞麦馒头比容较大,硬度、弹性、咀嚼性适中,感官评价总分较高;灰分0.4g/100g的面粉制作的荞麦馒头表面颜色光亮、色泽均匀。综上可得:湿面筋含量在33%~34%,蛋白质含量在11%~12%,吸水率在58%~60%,灰分0.4g/100g的面粉制作的荞麦馒头品质较好,比较适合制备荞麦馒头预拌粉。 相似文献
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研究以小麦淀粉为原料、以马铃薯α-淀粉为面筋替代物制作低蛋白馒头。通过蒸煮实验确定低蛋白馒头制作的配方,并以正交实验进行优化。最佳配方为:小麦淀粉91.5%、马铃薯α-淀粉8%、CMC0.5%、加水量55%。 相似文献
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Zuo-Ji Lin Diane M Miskelly H John Moss 《Journal of the science of food and agriculture》1990,53(2):203-213
Three methods of preparation of steamed bread on a laboratory scale were evaluated to determine the one most suitable for discriminating between flour samples. The preferred method was then applied to a number of wheat varieties at different protein levels to select the most suitable ones for this product, and to determine the key analytical parameters of the most suitable flour. Flour colour and protein content appeared to be more important than other physical and chemical properties. Flour samples with high protein content (greater than 12%) and strong doughs gave bread with a wrinkled surface and dark colour, whereas low protein (less than 10%) soft wheat flours gave poor texture and eating quality, although the surface was smooth. It is suggested that flours of medium protein content (10–12%) and medium dough strength are the most suitable for steamed bread. Processing conditions affected steamed bread quality. Blending of high protein hard strong wheats with soft weak wheat could be practical for preparing flour for steamed bread. 相似文献
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为研究小麦粉在不同粒度下其面团及馒头品质的变化,通过控制研磨条件得到基本组分相同而粒度不同的6种粒度不同的小麦粉(分别全部穿过150 μm、137 μm、123 μm、112 μm、100 μm、88 μm,以下简称S150、S137、S123、S112、S100、S88),对其色泽、基本理化特性、面团水分分布、发酵特性及馒头各项指标进行分析,从而探究粒度对面团特性及馒头品质的影响。结果表明:当小麦粉粒度减小时,其水分在粒度S112时较低,灰分、脂肪含量无显著性(p<0.05)变化,粒度组成中D50从120.84 μm降至73.64 μm、湿面筋含量显著性(p<0.05)降低,L*值、破损淀粉含量显著性(p<0.05)增加;面团内深层结合水和自由水含量逐渐降低而弱结合水含量逐渐增加。在粒度为S123时,面团最大膨胀高度、漏气时间、产气量和持气率达到最大。随着小麦粉粒度减小,馒头的比容、L*值、弹性、内聚性、回复性整体呈先增加后降低趋势,硬度、胶着性、咀嚼性呈先降低后升高,宽高比在粒度为S112时最小。综上所述,粒度在S123~S112小麦粉适合制作馒头。 相似文献