运动营养食品的现状和未来发展探讨

随着大众体育的兴起,运动营养食品越来越受欢迎,很多运动人员开始使用运动营养食品补充能量,增强体质。在这样的背景下,运动营养食品行业得到迅速发展,各个种类的运动营养食品出现在市场中。随着大众体育的进一步发展,市场将会产生更大的需求,因此这一行业的市场发展前景十分乐观。本研究介绍了运动营养食品的概念和分类情况,分析了国内外运动运动营养食品的发展概况,并总结了运动营养食品的功能成分和应用进展,探讨了我国运动营养食品中存在的问题和发展趋势。     

运动营养食品的现状与未来发展探析

在我国大力推行全民健身理念的背景下,大众体育迎来了前所未有的发展机遇,人们在运动锻炼中提高身体素质,通过食用运动营养食品补充能量,增强自身体质。由此,运动营养食品愈加受到人们的关注和喜爱,推动我国运动营养食品行业得到了迅速发展。随着大众体育的进一步发展,为运动营养食品行业带来更为广阔的前景。     

运动营养食品现状与未来发展趋势

正随着大众体育的兴起和人们健康意识的改善,越来越多的运动人群开始食用运动营养食品,为身体提供充足的能量并增强体质。我国运动营养食品产业虽然起步较晚,但是发展迅速,市场前景十分乐观。本文介绍了运动营养食品的概念和功能,分析了国内外运动营养食品的现状,并对国内外运动营养食品发展趋势进行了展望,旨在为促进动营养食品产业的可持续发展提供些许参考。     

运动营养食品及其抗疲劳活性成分研究进展

缓解疲劳的关键在于保证机体运动水平,科学合理膳食与运动营养补充是主要途径。随着我国全民健康运动的兴起,运动人群不断增长,具有补充机体能量、减轻运动疲劳等作用的运动营养食品逐渐受到人们关注和重视,成为实现健康生活方式不可或缺的一个方面。目前,我国运动营养食品标准日趋完善,市场份额逐年增长,产业愈发成熟,发展前景十分乐观。本文从运动营养食品的定义及分类出发,系统阐述运动营养食品及其抗疲劳活性成分的国内外研究现状,并对其未来发展趋势做出展望,以期推动抗疲劳功能性运动食品的科学研究与应用开发,为普通大众了解运动营养食品、科学选择运动营养食品提供参考依据。     

微量元素在运动营养食品中的强化水平及 风险评估

随着人们运动健身意识的增强,运动营养食品越来越受到欢迎。在此背景下,运动营养食品的研发越来越受到重视。在运动营养食品中强化微量元素,客观上增加了微量元素的摄入机会,但微量元素的强化水平及风险评估需要得到学者的重视。本研究综述了微量元素与人体健康的关系、运动营养食品的定义、分析了国内外运动营养食品的研究现状,以及微量元素在运动营养食品中的强化水平及风险评估,为研究微量元素在运动营养食品中的应用提供重要参考。     

运动营养食品的现状与趋势

介绍运动营养食品的概念和分类情况,综述国内外发展概况以及运动营养食品功能成分研究和应用进展。分析我国运动营养食品存在的问题,并提出我国运动营养食品的研究思路。     

运动营养食品在学校体育中的应用

不同类型的运动营养产品对于运动员的体能恢复有不同的作用和影响,在体育教学中食用运动营养食品可以帮助学生和运动人员有效消除疲劳,及时补充营养。为了更好地满足学校对于运动营养食品在体育中的应用,需要对相关方面的知识进行了解。因此,本文主要总结了运动营养食品的概念、种类和作用,综述了运动营养食品对体育运动员体能恢复的影响以及运动营养食品在学校体育中的应用。     

运动营养食品及其功能性成分研究

近年来,随着社会经济的发展和人们生活水平的提高,人们逐渐提高了对身体健康的重视程度,通过加强体育锻炼缓解身体疲劳、提高身体素质。但体育锻炼会产生一系列身体问题,如关节损伤、运动恢复等。因此,必须加强对运动营养食品及其功能性成分的研究,帮助人们提高身体恢复能力、缓解损伤、增强免疫力。本文简述了运动营养食品及其发展现状,探讨了运动营养食品的功能性成分并进行前瞻性观望,为促进运动营养食品研发与发展提供一定建议。     

运动营养食品的现状和未来

根据普及运动营养学知识和推动我国运动营养事业的需要,阐述了运动营养食品的最新概念、国外运动营养食品的发展、国内市场前景和急待开发、培育的现状。对国内10多年来已基本成熟的运动营养食品体系作了详尽的阐述,并就近两年来我国运动营养食品行业在产品研制与开发、行业标准制订、运动营养学知识普及和国内外学术交流、运动营养师培训等方面的工作进展作了介绍。这些大好的形势预示了我国运动营养食品市场的美好未来。     

北京:出台全国首部规范运动营养食品的方案

<正>记者从北京市食药监局获悉,作为全国首部有关运动营养食品生产审查的规范性文件,《北京市运动营养食品生产审查方案(试行)》已发布实施。根据方案要求,运动营养食品的标签不得声称具备任何功能。运动营养食品是指为满足运动人群,即每周参加体育锻炼3次及以上、每次持续时间30分钟及以上,每次运动强度达到中等及以上的人群的生理代谢状态、运动能力以及对某些营养成分的特殊需求而专门加工的食品。运动营养     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

Tests of potential functional barriers for laminated multilayer food packages. Part I: Low molecular weight permeants

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Chlorohydrins of bisphenol A diglycidyl ether (BADGE) and of bisphenol F diglycidyl ether (BFDGE) in canned foods and ready-to-drink coffees from the Japanese market

BADGE.2HCl and BFDGE.2HCl were determined in 28 samples of ready-to-drink canned coffee and 18 samples of canned vegetables (10 corn, 5 tomatoes and 3 others), all from the Japanese market. HPLC was used as the principal analytical method and GCMS for confirmation of relevant LC fractions. BADGE.2HCl was found to be present in one canned coffee and five samples of corn, BFDGE.2HCl in four samples of canned tomatoes and in one canned corn. No sample was found which exceeded the 1mg/kg limit of the EU for the BADGE chlorohydrins. However the highest concentration was found for the sum of BFDGE.2HCl and BFDGE.HCl.H₂O at a level of 1.5mg/kg. A Beilstein test confirmed that all cans containing foods contaminated with BADGE.2HCl or BFDGE.2HCl had at lest one part coated with a PVC organosol.     

European priorities for research to support legislation in the area of food contact materials and articles

A strong science base is required to underpin the planning and decision-making process involved in determining future European community legislation on materials and articles in contact with food. Significant progress has been made in the past 5 years in European funded work in this area, with many developments contributing to a much better understanding of the migration process, and better and simpler approaches to food control. In this paper this progress is reviewed against previously identified work-areas (identified in 1994) and conclusions are reached about future requirements for R&D to support legislation on food contact materials and articles over the next 5 or so years.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the