共查询到20条相似文献,搜索用时 265 毫秒
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先将谷朊粉进行脱脂处理,然后采用微波、三氯氧磷和转谷氨酰胺酶法对谷朊粉进行修饰,并使用电子显微镜扫描分析了不同干燥工艺制备的改性谷朊粉凝胶结构.结果表明:脂肪对改性谷朊粉的凝胶性能影响较小,改性谷朊粉的凝胶临界浓度为16%,冷冻干燥比常压干燥更能明显地保持改性谷朊粉的交联结构.因此,酶法改性结合冷冻干燥是一种制备具有优良凝胶性能改性谷朊粉的先进工艺. 相似文献
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研究酶法改性谷朊粉对低筋面粉面团及面包加工品质的影响。利用复合蛋白酶水解制备改性谷朊粉,通过扫描电镜观察其超微结构,拉伸仪分别测定未添加谷朊粉、添加未改性谷朊粉、添加改性谷朊粉的面粉面团载荷变形的承受能力,并对制作的面包进行品质评价。结果显示,改性后谷朊粉结构松散,组织边缘不规则,成片状,添加到面粉中能够增加面粉的筋度,在筋度上较改性前有所减小,粉质拉伸特性均未明显降低,具有良好的加工特性。改性谷朊粉用于面包烘焙,能使面包内部蜂窝均匀、质地细腻、香软可口,有助于改善面包的口感。所以改性谷朊粉加大了谷朊粉开发与利用的空间,试验对改性谷朊粉开发的产品而言有重要的借鉴价值。 相似文献
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小麦面筋蛋白结构及其改性研究 总被引:2,自引:0,他引:2
小麦面筋蛋白是生产小麦淀粉时副产品,具有价格低廉、产量大等特点。小麦面筋蛋白因分子量大、结构复杂、溶解性低而使其应用受限,因此在认识小麦面筋蛋白结构基础上,研究其结构及性能方面改性方法,对拓宽小麦面筋蛋白应用和缓解小麦过饱和问题都大有裨益。 相似文献
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Fatma Boukid Mondher Mejri Nicoletta Pellegrini Stefano Sforza Barbara Prandi 《Comprehensive Reviews in Food Science and Food Safety》2017,16(5):797-807
Because of the continuous increase in the prevalence of gluten‐related disorders, selection of wheat with a low content of immunogenic gluten epitopes could be an innovative alternative for prevention. In this review, the focus is on literature data concerning the deallergenization tools of wheat, which are mainly related to breeding approaches (classic and advanced) and processing operations (germination and fermentation). Until now, no safe wheat genotype has been identified, whereas decreasing wheat allergenicity is possible. On the other hand, the decrease of gluten or some of its epitopes can strongly affect technological properties. Thus, obtaining celiac‐safe gluten without affecting the technological properties of wheat could be considered as a new challenge that scientists will be facing. Celiac‐safe wheat‐based product development could be a great revolution in the market of foods for special medical purposes. The present paper is aiming to: (a) review the strategies and the approaches used, or that can be used, for developing low allergenic wheat: their utilities and limits were also discussed and (b) screen the impact of gluten reduction or removal on the quality of wheat end‐use products. 相似文献
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Wheat Seed Proteins: Factors Influencing Their Content,Composition, and Technological Properties,and Strategies to Reduce Adverse Reactions 总被引:2,自引:0,他引:2
Sachin Rustgi Peter Shewry Fred Brouns Lomme J. Deleu Jan A. Delcour 《Comprehensive Reviews in Food Science and Food Safety》2019,18(6):1751-1769
Wheat is the primary source of nutrition for many, especially those living in developing countries, and wheat proteins are among the most widely consumed dietary proteins in the world. However, concerns about disorders related to the consumption of wheat and/or wheat gluten proteins have increased sharply in the last 20 years. This review focuses on wheat gluten proteins and amylase trypsin inhibitors, which are considered to be responsible for eliciting most of the intestinal and extraintestinal symptoms experienced by susceptible individuals. Although several approaches have been proposed to reduce the exposure to gluten or immunogenic peptides resulting from its digestion, none have proven sufficiently effective for general use in coeliac‐safe diets. Potential approaches to manipulate the content, composition, and technological properties of wheat proteins are therefore discussed, as well as the effects of using gluten isolates in various food systems. Finally, some aspects of the use of gluten‐free commodities are discussed. 相似文献