与面粉工业有关的中国专利

正专利名称:应用于面粉厂储存仓下料用出仓器专利申请号:CN201420414238.4公开号:CN204056811U申请日:2014.07.25公开日:2014.12.31申请人:郑州大唐粮食机械有限公司本实用新型公开了一种应用于面粉厂储存仓下料用出仓器,包括倒圆锥形结构的出仓器本体,出仓器本体的上部边沿设置有与储存仓出料口相联接的水平翻边,其上开设有连接孔;在出仓器本体的倒圆锥形结构的外壳内同心套装有倒圆锥形结构的内壳,内壳的上边沿通过周边均衡设置的连接筋与外     

冷库建筑防雷装置的质量问题不容忽视

介绍冷库建筑防雷装置容易产生的质量问题，包括接闪器、引下线、接地装置、防腐、测试及维护。     

一种新型赛络纺纱电子打断装置

介绍了一种新型的赛络纺纱电子打断装置 ,与机械打断装置以纺纱力作为检测对象的方法不同 ,它是以纱线的位移作为检测的对象 ,克服了机械打断装置的弊端。文中分析了电子打断的原理、结构及与机械打断器的不同特点 ,认为它是一种比较理想的赛络纺打断装置。     

500吨甜菜/日双螺旋连续渗出器断轴的原因及解决措施

公称能力为500吨甜菜/日的双螺旋连续渗出器是仿照DDS渗出器设计的。本体部份结构完全相同,但传动系统则采用开式齿轮的一端传动方式。配用JZS91型整流子电动机,功率40～13千瓦,转速1050～350转/分,通过减速箱及二级齿轮减速,渗出器主轴转速0.4～1.2转/分。本体几何尺寸相当于     

翻罐器

一种翻罐器，其特征在于：它包括传送带1及设置于传送带1上方的翻罐器本体2，所述的翻罐器本体2内设有呈螺旋状的螺旋内腔5。通过传送带把瓶子或罐子送入螺旋内腔内，使得瓶子或罐子翻转至所需要的角度，则起到瓶子或罐子的翻转作用，结构简单。（申请号：03220594.5）     

浅谈做好一般厂房屋面放散管、排风管防雷措施的重要性

通过日常对一般厂房防雷措施的检测中,发现现有屋面放散管、排风管的接闪器选择布设上的一些问题,提出做好其防雷措施的建议。     

新建建筑物防雷工程检测及常见问题

通过作者近年对新建建筑物防雷工程的检测,介绍各个环节防雷工程施工要点及检测内容,并在检测过程中发现的一些问题,如预留测试点、高层建筑物外墙金属构件接地、淋浴房局部等电位联结以及屋面接闪器等,结合规范进行分析。     

奶油蛋糕远程3D打印机器人数控协同机电系统设计

在分析奶油蛋糕成形规律、制作工艺基础上,提出由1台三自由度机械臂和1台四轴的运动台协同构成奶油蛋糕加工机械本体,控制系统上采用ARM微控制器和MCX514运动控制芯片作为控制系统核心硬件;软件层面上,以FreeRTOS嵌入式操作系统和GRBL数控系统作为控制系统软件框架。经接触式三点握手的基坐标系标定可实现控制机械臂和运动台协同完成奶油蛋糕成形加工。     

气动式自动磨皮辊机

上棉四厂发扬敢想、敢干的革命精神,于去年春基本上搞成了气动式自动化皮辊磨床。经过一年多来的使用,效果良好。 气动式自动磨皮辊机是利用射流自动机床的原理,但省略了所有附壁式射流元件和减压阀、定值器等附属配件。采用机械和气动相结合的自控系统。它的特点是:费用省、结构简单、动作敏捷、安全可靠。由于利用了原有磨皮辊机的机械往复动作,在皮辊自动化替换过     

电磁式选纬器的研发

为了降低成本、高速选纬、保证织物质量,改进现有无梭织机选纬器的缺陷,设计出采用电磁式选纬结构、通过线圈充放电实现选纬指动作的电磁式选纬器;详细分析其机械结构、驱动系统设计及软件系统;探讨传感器安装测试及效果分析。指出:该选纬器采用霍尔传感器测量磁力以确定动作角度,采用单片机实现多路选纬指控制,采用先进控制算法提升控制精度;电磁式选纬器结构简单、选纬功能强且精准、成本低,其驱动系统具备角度自学习、宽电压输入和电源防接反保护功能,可实现更好的选纬效果与更多的选纬数量。     

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