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抵抗过敏的饮食方法防止过敏性疾病的发生,最根本的措施是把引起过敏的食物从食谱中除去,把与自己有关的过敏原从生活中根除掉!这就要让病人看懂食品的标签与说明,特别是要清楚识别食品过敏原标记,防止发生严重的食物过敏反应。尤其是胃肠道功能不太好的人,需特别注意食物过敏。当你剔除了某些过敏食品以后,只要能保证营养的全面摄入,并不会影响健康。当然在以下食疗选方中,也需依照个人特点首先在过敏物上进行筛选,以防意外发生。 相似文献
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食物过敏已成为全球范围内日益严重的食品安全问题。对食物过敏原的潜在致敏性进行评价有助于更好地了解食物过敏原自身特性及其对过敏人群免疫系统的影响。模拟消化实验是食物过敏原潜在致敏性评价的有力手段。食物过敏原蛋白的消化稳定性为其潜在致敏性评价结果提供了重要参考依据,但并非所有食物过敏原均具有较强的消化稳定性。食物过敏原的潜在致敏性一方面取决于过敏原蛋白在通过消化道时的消化稳定性,另一方面取决于消化产物中具有免疫刺激能力的过敏原表位的丰度。不同模拟消化方法的应用对食物过敏原的消化结果及潜在致敏性评价结果的真实性和可比性具有重要影响。本文系统地介绍了体内及体外模拟消化方法的优缺点及在食物过敏原潜在致敏性评价中的应用研究进展,并综述了食物过敏原消化稳定性与其潜在致敏性评价结果的关系。以期对食物过敏原致敏性评价体系的进一步完善和发展有所帮助。 相似文献
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食物过敏原标准物质是解决食物过敏问题的关键实验材料之一。在食物过敏原标准化方面,鸡蛋、牛奶和花生过敏原的分离纯化、结构和免疫学性质表征方面取得了良好的效果,为研发单个过敏原蛋白标准物质提供了支撑。在美国国家标准与技术研究院(NIST)颁布的8种过敏性食物标准物质中,只有RM8445用于检测食物过敏原;由欧盟资助的两大项目中,EuroPrevall项目主要构建了一个食物过敏原信息的数据库,而CREATE项目则首次证实重组花粉过敏原rBetv1可作为天然花粉过敏原Betv1的候选标准物质,为开发重组食物过敏原标准物质提供了一种可借鉴的策略。总之,研发食物过敏原致敏性蛋白标准物质是一项重要的任务,极具挑战性。 相似文献
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花生过敏可导致某些人群严重的食品安全问题。过敏患者只能通过避免食用含有花生过敏原成分的食物来避免过敏。但是,食品在生产加工、储存、运输、销售过程中有可能被过敏原污染。因此,确定各类加工食品中是否含有花生过敏原成分,对于预防食用者发生花生过敏反应具有重要意义。花生中已确定的过敏原蛋白有13种(Ara h 1~Ara h 13)。本文综述了花生中过敏原蛋白的结构信息,当前流行的提取方法,以及各种定性定量的检测方法,总结了各种方法的优缺点。同时对建立一种具有特异性强、灵敏度高、定量准确的花生致敏蛋白检测方法的发展趋势进行了展望。 相似文献
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Figueroa-González I Quijano G Ramírez G Cruz-Guerrero A 《Journal of the science of food and agriculture》2011,91(8):1341-1348
Owing to their health benefits, probiotics and prebiotics are nowadays widely used in yogurts and fermented milks, which are leader products of functional foods worldwide. The world market for functional foods has grown rapidly in the last three decades, with an estimated size in 2003 of ca US$ 33 billion, while the European market estimation exceeded US$ 2 billion in the same year. However, the production of probiotics and prebiotics at industrial scale faces several challenges, including the search for economical and abundant raw materials for prebiotic production, the low-cost production of probiotics and the improvement of probiotic viability after storage or during the manufacturing process of the functional food. In this review, functional foods based on probiotics and prebiotics are introduced as a key biotechnological field with tremendous potential for innovation. A concise state of the art addressing the fundamentals and challenges for the development of new probiotic- and prebiotic-based foods is presented, the niches for future research being clearly identified and discussed. 相似文献
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常用消毒灭菌法及其机理与应用 总被引:3,自引:0,他引:3
介绍了采用消毒灭菌方法,有加热消毒法,紫外线辐射法和化学药剂消毒法。常用化学药剂有醛类、含氯消毒剂、醇类消毒剂以及高锰酸钾、生石灰等,阐释了消毒与灭菌两个概念的区别。 相似文献
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The objectives of the current study were to investigate the relationship between body condition score (BCS) and dairy form and changes in genetic parameters for BCS and dairy form within and across lactations and age. Body condition score and dairy form were obtained from the Holstein Association USA, Inc. Records were edited to include those cows classified between 24 and 60 mo of age and between 0 and 335 d in milk (DIM). A minimum of 20 daughters per sire and 15 cows per herd-classification visit were required. The dataset consisted of 135,178 records from 119,215 cows. Repeatability, multiple trait, and random regression models were used to analyze the data. All models included fixed effects for herd-classification visit, age within lactations 1, 2, and 3 or higher, and 5th-order polynomials for DIM. Random effects included sire and permanent environment for all models. Random regression models included age at classification nested within sire or DIM and lactation number nested within sire. Genetic variance for both BCS and dairy form was lowest in early lactation and highest in midlactation. Genetic correlations within and across lactations were high. The genetic correlation between DIM 0 in lactation 1 and DIM 305 in lactation 3 was estimated to be 0.77 for BCS and 0.60 for dairy form. The genetic correlation estimate between 30 mo of age at classification and 50 mo of age at classification was 0.94 for both dairy form and BCS. The repeatability models appeared to generate accurate evaluations for BCS or dairy form at all ages and stages of lactation. 相似文献
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