共查询到19条相似文献,搜索用时 375 毫秒
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麸质蛋白是主要存在于小麦、黑麦和大麦等中的贮藏蛋白,可引起麸质蛋白相关性疾病,包括自身免疫性疾病、过敏性疾病和非乳糜泻麸质敏感性疾病。无麸质饮食是目前针对这些患病人群唯一有效的饮食治疗方式,此饮食需避免或严格限制含麸质食品的摄入。随着无麸质饮食在临床中的广泛应用,其在麸质敏感性群体甚至健康人群中开始流行,但长期的无麸质饮食会带来一定的营养缺乏、重金属积累以及代谢异常等健康问题,因而如何通过改善饮食方式来弥补无麸质食品营养缺陷并开发出更加安全健康的无麸质食品正成为新的研究趋势。本文综述了无麸质饮食的现状,无麸质饮食与疾病,无麸质饮食的健康挑战,以及无麸质食品的缺陷与品质改良,为无麸质饮食进一步研究和无麸质食品开发提供理论依据和参考。 相似文献
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无麸质食品是专门为麸质过敏人群生产的一类食品.由于无麸质食品不含面筋,面团在食品制备过程中难以形成有效的网状结构,不易成型,保水性、持气性和弹性较差.本文对无麸质食品的定义及缺陷、原料及成分组成、品质及技术提升进行了阐述,介绍了无麸质食品与人体健康的关系,对无麸质食品的发展与应用作出了合理展望. 相似文献
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麸质是一种广泛存在于麦类谷物中的蛋白质复合物,也是一种重要的过敏源物质,主要由麦醇溶蛋白和麦谷蛋白组成,是构成面团良好网络结构的重要物质。近年来,麸质不耐受症患病率逐年上升,无麸质饮食作为麸质不耐受症治疗的有效方法,越来越受到关注。此外,无麸质食品同传统食品相比,因其缺少面筋蛋白因而在制作过程中导致面团难以形成有效的网络结构,存在营养缺乏、不易成型、弹性差等缺点。本文概括了无麸质食品与麸质不耐受症的关系,对无麸质食品缺陷及其品质影响因素进行论述,并对目前原料预处理及改良剂添加对改善无麸质食品结构特性和理化特性进行总结概述,同时对该领域的发展前景进行了展望,以期为改良无麸质食品品质提供参考依据。 相似文献
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Vanessa D. Capriles José Alfredo G. Arêas 《Comprehensive Reviews in Food Science and Food Safety》2014,13(5):871-890
The evidence that celiac disease is one of the commonest food intolerances in the world is driving an increasing demand for gluten‐free foods. However, gluten is a structure‐building protein essential for formulating leavened baked goods. Therefore, obtaining high‐quality gluten‐free bread (GFB) is a technological challenge. This review focuses on contemporary approaches in gluten‐free baking that allow improvements at the structure, texture, acceptability, nutritive value, and shelf life of GFB. Gluten‐free breadmaking is a relatively new, emerging research topic that is attracting worldwide attention in order to develop different kinds of GFB, including regional varieties. Several approaches have been used to understand and improve GFB systems by evaluating different flours and starch sources, ingredients added for nutritional purposes, additives, and technologies or a combination of these elements. Some studies aimed to assess or improve GFB's technological or nutritional properties, while others had multiple objectives. Several studies used food science tools in order to improve technological and sensory quality of GFB, together with nutritional value. Some GFBs are vehicles of nutrients and bioactive compounds. Furthermore, extensive research on interfacing food science, nutrition, and health is needed so that a GFB with both good technological and nutritional properties can be prepared and made more available to those with celiac disease, which will help them adhere to a strict gluten‐free diet, increase social inclusion, and improve their quality of life. 相似文献
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食品过敏已成为世界关注的重大公共卫生学和食品安全问题。食品过敏原是引起食品过敏的直接诱因,具有耐加工和交叉反应的特性。国际食品法典委员会(Codex Alimentarius Commission,CAC)规定了必须在食品标签中标注的8种可能引起过敏反应的食品及其配料,包括含有麸质的谷类、甲壳动物及其制品、鸡蛋及其制品、鱼类及其制品、花生、大豆及其制品、奶和奶制品(包括乳糖)、坚果及其制品、浓度不低于10 mg/kg的亚硫酸盐。欧盟、美国、日本、澳大利亚和新西兰等已根据国际食品法典委员会对过敏原的要求出台强制性标识食品过敏原的法规,这在一定程度上对我国出口食品企业造成了影响。本文通过对比CAC以及欧盟、中国、美国、日本、澳大利亚和新西兰等地有关过敏原标签的要求,提醒出口食品加工企业减少因标签不合格造成的经济损失,并为其在生产加工过程中过敏原的控制提出建议。 相似文献
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目的 对我国与主要国家/地区的食品致敏物质标签标示要求差异性展开研究,同时调查消费者的食物过敏情况以及对于致敏物质标签标示的认知度,为我国食品中致敏物质的标签标示管理提供建议。方法 收集对比各国/地区食品中致敏物质标签标示的法律法规及标准,同时对消费者开展问卷调查,对5 975份调查报告进行统计并分析调查结果。结果 我国食品中致敏物质标签标示要求较为宽松,消费者对于相关标示内容有所需求。结论 应推行食品中致敏物质的强制化标示,完善食品中致敏物质标签标示的管理。 相似文献
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Girdhari M. Sharma Prasad Rallabhandi Kristina M. Williams Autusa Pahlavan 《Journal of food science》2016,81(3):T810-T816
Gluten ingestion causes immunoglobulin E (IgE)‐mediated allergy or celiac disease in sensitive individuals, and a strict gluten‐free diet greatly limits food choices. Immunoassays such as enzyme‐linked immunosorbent assay (ELISA) are used to quantify gluten to ensure labeling compliance of gluten‐free foods. Anti‐gluten antibodies may not exhibit equal affinity to gluten from wheat, rye, and barley. Moreover, because wheat gluten is commonly used as a calibrator in ELISA, accurate gluten quantitation from rye and barley contaminated foods may be compromised. Immunoassays utilizing grain‐specific antibodies and calibrators may help improve gluten quantitation. In this study, polyclonal antibodies raised against gluten‐containing grain‐specific peptides were characterized for their immunoreactivity to gluten from different grain sources. Strong immunoreactivity to multiple gluten polypeptides from wheat, rye, and barley was observed in the range 34 to 43 kDa with anti‐gliadin, 11 to 15 and 72 to 95 kDa with anti‐secalin, and 30 to 43 kDa with anti‐hordein peptide antibodies, respectively. Minimal or no cross‐reactivity with gluten from other grains was observed among these antibodies. The anti‐consensus peptide antibody raised against a repetitive amino acid sequence of proline and glutamine exhibited immunoreactivity to gluten from wheat, rye, barley, and oat. The antibodies exhibited similar immunoreactivity with most of the corresponding grain cultivars by ELISA. The high specificity and minimal cross‐reactivity of grain‐specific antibodies suggest their potential use in immunoassays for accurate gluten quantitation. 相似文献
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Sandra Munera‐Picazo Amanda Ramírez‐Gandolfo Francisco Burló Ángel Antonio Carbonell‐Barrachina 《Journal of food science》2014,79(1):T122-T128
Celiac disease is an autoimmune disease that affects the villi of the small intestine causing abdominal pain, gas, diarrhea, or bad absorption due to gluten intolerance. The only treatment for this disease consists of a lifelong gluten free diet; this is, celiac people cannot consume products containing gluten, such as wheat, barley, and rye, but they can use rice and corn. Thus, rice flour is mainly used for the manufacturing of the basic products of this population. Unfortunately, rice can contain high contents of total (t‐As) and inorganic (i‐As) arsenic. The current study demonstrated that products for celiac children with a high percentage of rice contained high concentrations of arsenic (256 and 128 μg kg?1). The daily intake of i‐As ranged from 0.61 to 0.78 μg kg?1 body weight (bw) in children up to 5 y of age; these values were below the maximum value established by the EFSA Panel (8.0 μg kg?1 bw per day), but it should be considered typical of populations with a high exposure to this pollutant. Finally, legislation is needed to improve the labeling of these special rice‐based foods for celiac children; label should include information about percentage, geographical origin, and cultivar of the used rice. 相似文献