全谷物食品标准体系建设现状与发展方向

研究表明，摄入更多的全谷物可降低慢性代谢性疾病的患病风险。近20余年以来，全谷物产业在主要发达国家及地区发展迅速。近年来，全谷物在我国也引发了广泛关注，我国全谷物标准研制力度不断加强。本文介绍了全谷物及全谷物食品全球定义共识的进展，概述了国际标准化组织（International Organization for Standardization，ISO）国际标准全谷物工作组、美国、加拿大、荷兰、国际食品法典委员会等国家和机构全谷物原料及全谷物食品相关标准的发展现状；介绍了我国全谷物及全谷物食品定义的制订现状，概述了我国包括国家标准、行业标准、地方标准和团体标准在内的20余个全谷物原料、全谷物食品、全谷物生产技术规程及其他全谷物标准的发布情况，还有一些正在制定中的全谷物相关标准。最后提出了我国全谷物标准体系建设的发展方向和建议，包括充分与我国全谷物食品实际生产情况相结合、与国际接轨、标准检测与认证相结合三个方面。逐步完善构建全谷物食品产业的标准体系，将有助于引导和规范我国全谷物产业的高质量健康发展，推动打造多样化健康谷物食品新生态，为全谷物产业的发展提供技术依据。     

Fruit‐based functional foods II: the process for identifying potential ingredients

Developing functional food products requires a structured approach for screening potential ingredients. Using the development of a product with antioxidant properties as a model, eight fruit juice concentrates were screened, including New Zealand fruits. The total phenolic content and the antioxidant capacity, using chemical‐based assays (ferric reducing antioxidant power and oxygen radical absorbance capacity assays), were determined. The potential to protect against oxidative stress in Jurkat cells was also determined. Results indicate that the total phenolic content and antioxidant capacity in chemical‐based assays were strongly correlated. However, the total phenolic content did not dictate the level of protection from oxidative stress in this cell‐based model, suggesting that the type of phenolic compounds present and interactions between them may be important, although the activity of other compounds, such as vitamin C or carotenoids, may also be implicated. This model for screening ingredients may be used to design synergistic combinations of ingredients, and results may provide supportive evidence in the development of functional foods for this and other health targets.     

Tomato purèe quality from transgenic processing tomatoes

Summary  The quality of tomato purèe prepared from transgenic fruits ( Lycopersicon esculentum ) which had reduced amounts of polygalacturonase (PG) activity, were evaluated. The application of genetic modification yields products which have lower Bostwick consistency values (from 35 to 55%), reduced serum separation ( c . 40%) and better sensory appearance and acceptability in comparison with their conventional counterparts. A new way of producing high quality tomato products using genetically modified fruits together with mild heat treatments is described.     

莜麦方便营养粉的研制

研究开发了莜麦深加工产品的工艺、配方．选择芝麻、大豆、活性钙等为营养强化剂，以莜麦为主要原料，经过制粉、挤压膨化、粉碎、混合调配、包装等工艺生产新型方便食品——莜麦营养粉．产品配方为：莜麦４２．０％，大豆１４．０％，黑芝麻８．０％，蔗糖３４．０％，羧甲基纤维素钠０．２％，活性钙０．２％，无机盐等适量．该产品香甜可口，营养丰富，食用方便，是一种值得推广的营养方便食品．     

食品中有害金属元素的形态分析技术

简要介绍了国内外食品中微量有害金属元素形态分析的几种常用技术及一些新的研究进展     

预处理对脱水蔬菜色素保存的影响

用不同保色溶液对胡萝卜、青椒和菜豆进行预处理，得出了其干制品色素保存率的最佳预处理方案，并讨论了金属离子预处理对青椒和菜豆的保绿效果，以及硫化处理对胡萝卜的保色效果。     

肉制品中功能性添加物的研究

大量的研究证实了从传统的肉制品到健康食品变化的可能性,在肉制品中添加一些功能性成分对产品物理、化学性质和感官特性的影响作用,以及所带来的一些功能性变化。     

提高全民对食品营养及安全的认知是解决食品安全总是的关键

本文结合最近发生的食品安全事件及婴幼儿食品的营养及安全问题,指出食品安全问题在我国大有日趋严重之势,并建议国家有关部门、媒体和社会各界共同配合,对广大消费者和食品生产者进行食品营养和食品安全知识和法规的教育及宣传,以提高他们的认知水平,这是解决食品安全问题的关键.     

Membrane-based technologies for meeting the recovery of biologically active compounds from foods and their by-products

ABSTRACT

To date, according to the latest literature inputs, membranes-based technologies (microfiltration, ultrafiltration and nanofiltration) have demonstrated to meet the recovery of biologically active compounds, mainly phenolic compounds and their derivatives, from agro-food products and by-products. The goal of this paper is to provide a critical overview of the on ongoing development works aimed at improving the separation, fractionation and concentration of phenolic compounds and their derivatives from their original sources. The literature data are analyzed and discussed in relation to separation processes, molecule properties, membrane characteristics and key factors affecting the performance of such technologies. Technological advances and improvements over conventional technologies, as well as critical aspects to be further investigated are highlighted and discussed. Finally, a critical outlook about the current status for a large-scale application and the role of these processes from an environmental viewpoint is provided.