国外面粉加工设备的发展

叙述了近几年国外磨粉加工设备的发展和变化,主要介绍了着水机、分离筛、高方筛、磨粉机、在线面粉生产监控等方面先进技术的利用,以供选用参考.     

面粉加工新设备

一年一度的Ａ．Ｏ．Ｍ．（在职制粉师协会）商品展览会为面粉制造商提供了一个检验最新技术进步的机会,最具特色的是其“新产品”活动。Ａ．Ｏ．Ｍ．活动委员会在审查了众多的参展品之后,要挑选出１２种产品作为每年活动总结。１９９８年度的“新产品”总结如下。１容积式鼓风机美国宾夕法尼亚州Ｃｏａｔｅｓｖｉｌｌｅ的Ａｅｒｚｅｎ美国公司推出了新Ａｅｒｚｅｎ三角鼓风机,它的主要特点是结构小型,维护方便。由于鼓风机所有的维护均可在一侧进行。因此可靠墙放置亦可置于角落以节省空间。用１个铰接电机板自动连续张紧皮带,不需要使…     

高方平筛在面粉生产中的应用

高方平筛是面粉加工中的关键设备之一，与磨粉机和清粉机统称为三项制粉主机。它主要用于研磨后物料的筛理和分级，也可以作为检查筛使用。     

面粉平筛的发展和变化

简述了面粉平筛的发展史,从筛箱、驱动机构、悬吊装置几个方面介绍了平筛设计的改善和发展情况,介绍了国内外新型平筛产品和技术。指出了今后面粉平筛的设计方向,即平筛不仅要结构可靠,还要具有结构柔性化、安全卫生、污染少、成本低等特点。     

国外面粉小包装生产设备简介

随着我国改革开放形势的发展,粮食流通体制的改革已势在必行.面粉传统的25kg袋一销售形式早已不能适应城镇居民生活的需要。人们对面粉的需求已向优质、方便、多品种转化,一些大、中城市也已推出了一些小袋包装的面粉出售,销量很好。由于面粉小包装生产机械缺乏,大多数生产厂家都是以手工生产为主,远远     

面粉加工节能降耗新技术

郑州麦佳制粉工程技术有限公司在长期的面粉生产实践中,总结出了一套全新的面粉加工节能降耗新工艺,为广大面粉企业降低生产成本,为企业提高市场竞争力提供了一条新的途径。该技术具有以下特点：     

浅谈中小型面粉厂清粉机的应用

浅谈中小型面粉厂清粉机的应用湖北省襄樊食品工业学校（４４１０２１）熊昌英随着人民生活水平的日益提高，我国面粉工业由单一生产标准粉转向生产等级粉。近几年来，我国面粉工业引进了先进的工艺与设备，采用短粉路生产等级粉，具有面粉质量好（灰分低），上等粉出粉率...     

最新制粉技术与设备

主要介绍了目前国外的最新的制粉技术和设备,提出了国内粮食机械设计和制造的方向。     

Effect of flour heating on dough rheology

Heating soft wheat flour at 80°C for 15 min has already been shown to improve its bread-making potential. In this study, flour was fractionated to determine the specific effect of heating on its constituents (gluten, starch, lipid, water-soluble). While gluten was easier to extract and its texture was slacker after heating, it significantly increased dough-mixing stability and development time (P<0.01). Heated water-soluble fraction containing pentosans partly decreased stability (P=0.06).     

真空冷冻干燥活性初乳素设备与工艺

介绍了真空冷冻干燥设备结构与组成，并使用该设备对牛初乳进行了冻干实验。实验证明，利用该设备可生产高品质活性初乳素。     

面粉增白剂的使用及生产安全

面粉增白剂是由活性组价过氧化苯甲酰均匀分散在惰性载体中制成的。过氧化苯甲酰在面粉中受到水份、酶和空气的作用而分解，放出初生态氧，使面粉中的生色基团类胡萝卜素不饱和双键氧化，破坏发色团，产生退色作用。所以使用面粉增白剂，可以使面粉在24小时内得到适度的增白，从而增加面粉白度和颜色的稳定性。本文概述了面粉增白剂的增白机理，此外还讲述了面粉增白剂使用及生产安全。     

制粉新工艺的探讨

本文在参考国外制粉工艺前提下,通过对国内常用制粉工艺的分析,经改进和完善,针对具有10台磨左右的中型面粉厂,设计了一种新的制粉工艺,取得了较明显的工艺效果。     

Physicochemical,nutritional and functional properties of marama bean flour

Marama bean is a protein-rich, underutilised, drought-tolerant legume in sub-Saharan Africa. Its utilisation may be increased through value addition into protein-rich flours. Defatted flour from unheated and dry-heated (150 °C/20 min) whole marama beans (UMF and HMF) were analysed for physicochemical and protein-based functional properties. Heating significantly increased in vitro protein digestibility of marama bean flour. Of functional importance are the high levels of tyrosine present in marama bean flours. Heating significantly reduced protein solubility and emulsifying capacity of marama bean flours whilst water absorption capacity was improved. Foaming capacity was not affected by heating. UMF could be useful in food systems requiring high emulsifying capacity, but would not be suitable for applications requiring high water absorption and foaming capacity. Due to its high protein contents, marama bean flour could be used to increase the protein quality of cereal-based foods to help alleviate protein-energy nutrition in the region.     

Diversity in properties of seed and flour of kidney bean germplasm

The genetic diversity in seeds (physicochemical, hydration, textural and cooking properties) and flours (pasting and gel texture) among kidney bean lines was studied. A wide range of variation was observed for yield and yield-related traits. Seed weight, volume, density, hydration capacity, hydration index, swelling capacity, cooking time and amylose content ranged from 10.2 to 51.7 g/100 seeds, 14 to 46 ml/100 seeds, 0.51 to 2.15 g/ml, 0.03 to 0.62 g/seed, 0.16 to 0.97, 1.24 to 1.93 ml/seed, 50 to 120 min, and 0.09% to 5.02%, respectively. Hardness, cohesiveness, gumminess, springiness and chewiness of hydrated seeds ranged from 0.81 to 2.03 g, 0.18 to 0.48, 0.20 to 0.97 g, 0.31 to 0.51 and 0.08 to 0.43 g, respectively. Pasting temperature, peak viscosity, breakdown, final viscosity and setback ranged from 79 to 95 °C, 402 to 3235 cP, 9 to 393 cP, 862 to 5311 cP, and 363 to 2488 cP, respectively. Hardness, cohesiveness, gumminess, springiness, chewiness and adhesiveness of flour gels ranged from 3.9 to 5.3 g, 0.52 to 0.76, 1.47 to 23.52 g, 0.91 to 0.99, 3.21 to 23.91 and 13.2 to 178.5 g s, respectively.     

Nutrients and antinutrients in cowpea and horse gram flours in comparison to chickpea flour: Evaluation of their flour functionality

The nutrient composition, antinutritional factors and flour functionality of cowpea and horse gram flours were evaluated in comparison to chickpea flour characteristics. Protein content of these flours was in the range of 22.5−24.1%. Fat content was highest in chickpea (4.8%) and lowest in horse gram (1.4%). Resistant starch and phytic acid were significantly higher in cowpea flour. Compared to chickpea and cowpea, horse gram has more carbohydrate, dietary fibre, polyphenols and trypsin inhibitor activity and less oligosaccharides. Horse gram and chickpea flours had the highest water and oil absorption capacities with values of 148.1% and 109.3%, respectively. Although emulsion activity (58.1%) and stability (52.0%) were superior in horse gram, foaming capacity and foam stability were significantly higher in chickpea and cowpea flours, respectively. These results suggest the potential utility of cowpea and horse gram flours as substitutes for chickpea flour in some food products formulations.     

新型糯米粉烘干工艺初探

简述了糯米粉烘干的原理及烘干形式,重点介绍了在实践中成功应用的两级混合式多管除尘气流工艺的特点.     

VTT真空引纸系统--极高的引纸性能在Condat实现了

存在的问题 Condat,自1998年与意大利的Garda公司和西班牙的Torras公司合并后,成为Lecta集团的一员,是非磨木浆涂布纸的制造商.其89号生产线,纸机网宽5.768m,纸宽5.245m,成品定量90～135g/m2,设计车速1000m/min,生产能力566t/d.在运行10年后,面临着一些特殊问题:一个效率差的成形部,干燥部的大量断头,较长清洁时间和不可靠的慢引纸工艺.由于在纸机上进行在线涂布,引纸特别困难.在完成对89号生产线进行综合的引纸分析后,认为存在下列问题:1号涂布机的引纸困难且不稳定,纸耳在干燥部内就脱离了引纸绳,引纸性能因操作班组不同而不同,手工引纸危及到操作人员的安全,并且在断纸后清洗时间太长.