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The influence of freezing methods on the quality of grain bread 冷冻方法对谷物面包品质的影响
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-11-32-36
N. Alekhina
This article presents the results of studies of the effect of freezing methods on changes in the structural and mechanical properties of the crumb, the content of bound moisture, microbiological parameters during the storage of bread and the composition of flavor-forming substances in products from bioactivated wheat grain. The structural and mechanical properties of the bread crumb were determined by using a rheometric information-measuring complex, the number of mesophilic aerobic and facultative anaerobic microorganisms – according to GOST 10444.15–94, the presence of mold, yeast – according to GOST 10444.12–2013, bound moisture – on a refractometer by changing the concentration of sucrose when mixed with the product, the aroma of bread – on the «MAG-8» odor analyzer (manufactured in Russia) with the «electronic nose» methodology by using 8 sensors based on piezo-quartz resonators of the OAV type with a base oscillation frequency of 10.0 MHz with different film sorbents on the electrodes. It was revealed that grain bread obtained on the basis of frozen baked products had the best rheological properties of the crumb (closest to the sample without freezing) and prepared from frozen dough, was characterized by the highest values of bound moisture content and less microbiological contamination. Bread prepared on the basis of semifinished products of an increased degree of readiness was characterized by the greatest intensity of flavor from the prototypes.
本文介绍了冷冻方式对面包屑结构和力学性能、面包贮藏过程中结合水分含量、微生物学参数以及生物活性小麦制品中风味物质组成的影响。面包屑的结构和机械性能是通过使用流变学信息测量络合物来确定的,根据GOST 10444.15-94,中温好氧微生物和兼性厌氧微生物的数量,根据GOST 10444.12-2013,结合水分,通过改变与产品混合时蔗糖的浓度,在折光计上存在霉菌,酵母。面包的香气-在“MAG-8”气味分析仪(俄罗斯制造)上使用“电子鼻”方法,使用基于OAV型压电石英谐振器的8个传感器,其基本振荡频率为10.0 MHz,电极上有不同的薄膜吸附剂。结果表明,以冷冻烘焙产品为基础制成的谷物面包具有最佳的面包屑流变学特性(最接近未冷冻的样品),并且由冷冻面团制成,具有最高的结合水分含量和较少的微生物污染。在半成品的基础上制作的面包的准备程度提高了,其特点是原型的味道最大。
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引用次数: 0
Influence of the concentrated apple alimentary fiber on the rheological properties of the dough 浓缩苹果消化纤维对面团流变特性的影响
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-5-43-46
N. M. Derkanosova, A. Stakhurlova, T. V. Ponomareva, M. Vukić, D. Vujadinović
The  development  of  enriched  bakery  products  by  adding  ingredients  with  proven  physiological  effects  into  recipe  compositions  belongs  to  the  field  of  healthy  nutrition.  In  accordance  with  the  updated  norms  of  the  physiological  needs  for  energy  and  nutrients,  these  ingredients  include  raw  materials  that  can  meet  the  organism  need  for  alimentary  fiber.  In  continuation  of  previously  published  studies,  the  effect  of  dried  and  crushed  apples  husks,  as  a  secondary  product  in  direct pressed  juice  technology,  on  the  rheological  properties  of  the  dough  was  studied.  Model  mixtures  of  first  grade  wheat  flour  and  apple  husks  were  identified  as  dietary  fiber  concentrate.  The  physical  properties  of  dough  were  determined  on  a  Brabender  extensograph.  It  has  been  established  that  the  alimentary  fiber  concentrate  from  apples  has  a  significant  effect  on  the  stability  and  extensibility  of  the  dough , as  well  as  on  the  patterns  of  changes  in  these  indicators  during  the  resting  process.  The  rheological  characteristics  of  dough  from  mixtures  of  first grade  wheat  flour  and  alimentary  fiber  concentrate  at  a  ratio  in  mass  fractions  of  90:10  and  85:15  shows  the  difficulty  of  achieving  the  traditional  shape,  porosity  structure,  and  appearance  of  finished  bakery  products.  Accordingly,  there  are  required  both  the  development  of  technology  parameters  and  measures  of  bread  promotion,  the  functionality  of  which  in  terms  of  alimentary  fiber  is  ensured  by  the  addition  of  more  than  10 %  of  dietary  fiber  concentrate  from  apples.
在配方成分中加入经证实具有生理作用的配料,开发出营养丰富的烘焙产品,属于健康营养领域。根据能量和营养物质生理需求的最新规范,这些成分包括能满足机体对消化纤维需求的原料。在先前发表的研究的延续,干燥和压碎的苹果皮,作为直接压榨果汁技术的次要产品,对面团流变特性的影响进行了研究。将一级小麦粉与苹果皮混合制成浓缩膳食纤维模型。用Brabender拉伸仪测定了面团的物理性质。研究表明,苹果消化纤维浓缩物对面团的稳定性和延展性有显著影响,并对面团静置过程中这些指标的变化规律有显著影响。由一级小麦粉和营养纤维以90:10和85:15的质量分数混合而成的面团的流变特性表明,要达到烘焙成品的传统形状、孔隙结构和外观是很困难的。因此,需要开发技术参数和推广面包的措施,通过添加10%以上的苹果膳食纤维浓缩物来保证面包在消化纤维方面的功能。
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引用次数: 0
Pneumatic screen fractionation of barley and wheat flour for extraction of protein and carbohydrate fractions 用于提取蛋白质和碳水化合物的大麦和小麦粉的气动筛分馏
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-6-52-57
R. Kandrokov, G. Tsybina, A. Budová
A technology has been developed for separating grains of wheat and barley into anatomical parts using pneumatic classification for maximum extraction of protein and carbohydrate fractions. To obtain a concentrated protein fraction, it is advisable to carry out centrifugal pneumosieve fractionation of crushed wheat flour, extracting small (up to 18 microns) light particles of protein and starch into one fraction, the yield of which should not exceed 15%. The final separation of protein and starch particles should be based on the difference in their density in a centrifugal-axial rotary pneumatic classifier. The highest content of starch differ fractions of barley flour, obtained by descending from sieves with holes of 40 and 30 microns (respectively 82,72% and 85,26%). In larger fractions, the starch content drops sharply (51,24% and 61,59%), which is explained by the presence of shell and protein particles in them. The protein content correlates with the ash content of the fractions, and the minimum ash content (0,97%) and protein content (7,51%) differ in the fraction obtained by passing a sieve with 63 μm holes and leaving a sieve with 40 μm holes. The maximum protein content (14,08%) is characterized by the finest fraction obtained by passing a sieve with a hole size of 30 μm. At the same time, the protein content in it is 1,9 times higher than in the fraction with a hole size of 30μm.
一种技术已经开发分离谷物小麦和大麦的解剖部分使用气动分类最大限度地提取蛋白质和碳水化合物的部分。为了获得浓缩的蛋白质馏分,建议对粉碎的小麦粉进行离心筛分馏,将蛋白质和淀粉的小(可达18微米)轻颗粒提取成一个馏分,其收率不应超过15%。蛋白质和淀粉颗粒的最终分离应基于它们在离心-轴向旋转气动分级机中的密度差异。从孔径为40微米和30微米的筛子中提取的大麦粉淀粉含量最高,分别为82,72%和85,26%。在较大的馏分中,淀粉含量急剧下降(分别为51.24%和61.59%),这是由于其中存在壳和蛋白质颗粒所致。蛋白质含量与馏分的灰分含量相关,通过63 μm孔筛和留下40 μm孔筛得到的馏分的最低灰分含量为0.97%,蛋白质含量为7.51%。通过孔径为30 μm的筛子得到的最细的颗粒,其蛋白质含量最高(14.08%)。同时,其蛋白质含量是孔尺寸为30μm的馏分的1.9倍。
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引用次数: 0
Wheat-rye bakery products with soy okara 小麦-黑麦面包制品与大豆
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-3-49-55
Т.О. Kunitsyna, N. Berezina, E. Khmeleva, L. Samofalova, O.V. Klimenkova
The enrichment of mass-produced varieties of bakery products, such as wheat and rye, is an urgent task at the present time. The use of soy okara for this purpose is due to its rich chemical composition and high ability to swell and bind moisture. The purpose of the research was to determine the effect of replacing dry soy okara flour on the properties of semi-finished products and the quality of wheat-rye bakery products. The technological properties of okara, flour and their mixtures were determined by the indicators of water binding capacity, the degree of swelling, the quantity and quality of gluten and the number of drops. Soy okara was added in an amount of 3–12% in increments of 3% instead of flour. Okara was not added to the control sample. In the test, the acidity was determined by titration, the maximum shear stress and adhesion on the device Structurometer ST-1. The quality of the finished bread was evaluated according to the indicators of the mass fraction of moisture, porosity, specific volume, organoleptic indicators by standard and generally accepted methods. The preservation of the freshness of bakery products was assessed by the change in the moisture content of the crumb and its swelling during storage. It was found that in soy okara, the water binding capacity and the degree of swelling are higher than in flour by 2,45–2,8 times and 20–25%, respectively. The introduction of soy okara helps to reduce the amount of raw gluten by 0,45–1,8%, the IDC­index by 2–8 units of the device, and also reduces the number of drops by 8–35 seconds compared to the control. As a result of the conducted studies, it was found that the moisture, acidity, viscosity increases in the experimental samples of the test with soy okara and the adhesion decreases accordingly by 1,8–5,2%, 0,1–0,7%, 7,2–28,8%, 2,3–11,2%. The introduction of 9% soy okara instead of flour does not reduce the quality of finished products. At the same time, the yield increases by 13,7%, the freshness retention period by 24 hours, the calcium and fiber content increases by 20,3% and 4 times, respectively, the biological value increases by 3%, and the energy value decreases by 10% compared to the control.
丰富大量生产的烘焙产品品种,如小麦和黑麦,是目前的一项紧迫任务。大豆大豆的使用是由于其丰富的化学成分和高膨胀和结合水分的能力。本研究的目的是确定替代干豆粉对小麦-黑麦烘焙产品半成品性能和质量的影响。以水结合力、溶胀度、面筋的数量和质量以及面筋滴数等指标确定了原山葵、面粉及其混合物的工艺性能。以3-12%的添加量,以3%的增量代替面粉。对照样品中没有添加Okara。在试验中,酸度是通过滴定、最大剪切应力和附着在Structurometer ST-1上测定的。根据面包的质量含水率、孔隙率、比容、感官指标等指标,采用标准和通用的方法对成品面包的质量进行评价。通过面包屑含水率的变化和面包屑在贮藏过程中的膨胀来评价面包屑的保鲜效果。结果表明,大豆豆渣的水结合力和溶胀度分别比面粉高2倍、45-2倍、8倍和20-25%。大豆豆渣的引入有助于减少原面筋量0,45 - 1,8%,设备的idc指数降低2-8个单位,并且与对照组相比,还减少了8-35秒的下降次数。结果表明,加入大豆大豆后,样品的水分、酸度、黏度均有所增加,黏附度相应降低,分别为1,8 - 5,2%、0,1 - 0,7%、7,2 - 28,8%、2,3 - 11,2%。用9%的大豆代替面粉并不会降低成品的质量。同时,与对照相比,产量提高了13.7%,保鲜期提高了24小时,钙和纤维含量分别提高了20.3%和4倍,生物价值提高了3%,能量值降低了10%。
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引用次数: 0
Retrospective of VNIIZ scientific research on grain protection VNIIZ粮食保护科学研究回顾
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-11-37-39
G. Zakladnoy
Scientific projects are described, according to which for more than 90 years researches have been carried out in our country related to the protection of grain from pests.
介绍了我国90多年来开展的粮食病虫害防治相关科研项目。
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引用次数: 0
A method for modifying the design of a bread machine based on principles of forced convection 一种基于强制对流原理修改面包机设计的方法
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-11-43-47
I. Volkov
The problem of producing environmentally friendly and harmless food products requires not only high-quality raw materials, but also the modification of technological equipment for baking. The main direction of the modification is to reduce the loss of nutritional value of the feedstock in the production of bread, resource saving and environmental friendliness. The implementation of these directions when modifying the design of bread machines is possible based on the application of the principles of desegregation and forced convection. In order to ensure the required parameters of the technological process for the production of bread from whipped yeast-free dough in a modified design of the apparatus, onstructive solutions for improving the baking chamber are proposed. The obtained density indicators of specific isobaric heat capacity, thermal conductivity and dynamic viscosity with an infrared heating system for a dough piece made from whipped yeast-free dough make it possible to determine and correct the characteristics of technical devicesincluding the design of the apparatus. The results of experimental studies of the proposed designs of devices for the production of whipped yeast-free dough and bread baking allow us to conclude that the proposed technical solution provides a reduction in baking time by 27–32 %, heat loss by 23–25 %, energy resources by 17–19 %, material consumption by 20–25 %. The proposed design changes ensure the production of environmentally friendly bakery products through the use of physical principles that do not destroy the molecular structure of the feedstock.
生产环境友好、无害化食品的问题,不仅需要优质的原料,还需要烘焙工艺设备的改造。改性的主要方向是减少面包生产过程中原料营养价值的损失,节约资源和环境友好。当修改面包机的设计时,这些指令的实现是可能的,基于应用分离和强制对流的原理。为了保证无酵母生面团生产面包的工艺参数,对该设备进行了改进设计,提出了改进烘烤室的建设性方案。利用红外加热系统获得的比等压热容量、导热系数和动态粘度的密度指标,可以确定和纠正技术设备的特性,包括设备的设计。对提出的无酵母生面团和面包烘焙设备设计的实验研究结果使我们得出结论,提出的技术解决方案可将烘焙时间减少27 - 32%,热量损失减少23 - 25%,能源减少17 - 19%,材料消耗减少20 - 25%。提出的设计变更通过使用不破坏原料分子结构的物理原理,确保生产环境友好的烘焙产品。
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引用次数: 0
Comparative evaluation of the composition of aroma forming substances in starter cultures and grain bread based on them 基于发酵剂和谷物面包香气形成物质组成的比较评价
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-5-40-43
N. Alekhina, E. Ponomareva, H.Yu. Botasheva
This  article  presents  the  results  of  studies  of  the  quantitative  and  qualitative  composition  of  flavor forming  substances  in  thick,  dry  starter  cultures  and  grain  bread  based  on  them. The  aroma  of  the  samples  was  evaluated  on  the «MAG-8»  odor  analyzer  (manufactured  in  Russia)  with  the  «electronic  nose»  methodology  by  using  8  sensors  based  on  piezo quartz  resonators  of  the  OAV  type  with  a  base  oscillation  frequency  of  10  MHz  with  different  film  sorbents  on  the  electrodes. It  was  revealed  that  when  drying  thick  semi-finished  products,  the  intensity  of their  aroma  significantly  decreased,  and  there  were  no  significant  changes  in  the  qualitative  composition. Thick starter  cultures  from  bioactivated  wheat,  hop  compositions  and  products  prepared  on  their  basis  had  the  highest  content  of  aroma forming  substances.
本文介绍了在此基础上对粗发酵剂、干发酵剂和谷物面包中风味形成物质的定量和定性组成进行研究的结果。样品的香气在“MAG-8”气味分析仪(俄罗斯制造)上进行评估,采用“电子鼻”方法,使用基于OAV型压电石英谐振器的8个传感器,其基本振荡频率为10 MHz,电极上有不同的薄膜吸附剂。结果表明,当干燥较厚的半成品时,其香气强度显著降低,而定性成分没有显著变化。以生物活性小麦、啤酒花组合物及其为基础制备的浓稠发酵剂的香气形成物质含量最高。
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引用次数: 0
Producing a product of high nutritional value in the form of flakes from rye grain 从黑麦谷物中生产出高营养价值的产品
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-6-43-46
V.A. Gunkin, G. Suslyanok, L. E. Rozantseva
The relevance of the production of grain products of a high degree of readiness and the expansion of the raw material base through the use of rye grain is shown. Methods for determining the fractional composition of proteins according to A.I. Ermakov, the content of water-soluble protein according to O.H. Lowry, dextrins according to M.P. Popov and E.F. Shanenko, fiber according to Kurshner and Ganak were used. Rational modes of IR processing of rye grain are substantiated when obtaining a new product from it in the form of flakes with high nutritional and consumer advantages. The effect of IR treatment on the physical and biochemical properties of rye grain has been studied. It is shown that the main parameters determining the modes of IR processing of rye grain are the grain moisture, the density (intensity) of the incident radiant energy flux and the irradiation time. The influence of various modes of IR processing on carbohydrates and proteins of rye grain has been studied. The effect of the intensity of IR processing of rye grain on the degree of starch dextrinization and on the density of grains is shown. The effect of IR treatment on the change in the solubility of proteins as a result of their denaturation is investigated. The effect of IR treatment modes on the degree of denaturation and fractional composition of rye grain proteins has been studied. The effect of grain flattening on the carbohydrate complex and the intensification of IR processing on the consumer advantages of flakes has been studied. The effect of IR treatment on the acidity of water and alcohol extracts, fiber content has been studied. Physicochemical changes in rye grain during its flattening into flakes after IR treatment have been studied. The production of a new fast food product in the form of flakes with high nutritional value and high fiber content, which can be used as a dry breakfast, is justified.
通过使用黑麦谷物,显示了生产高度准备的谷物产品和扩大原料基础的相关性。根据A.I. Ermakov的方法测定蛋白质的分数组成,O.H. Lowry的方法测定水溶性蛋白质的含量,M.P. Popov和E.F. Shanenko的方法测定糊精,Kurshner和Ganak的方法测定纤维。通过对黑麦籽粒进行红外加工,获得了具有高营养价值和消费优势的片状产品。研究了红外处理对黑麦籽粒物理生化特性的影响。结果表明,决定黑麦籽粒红外加工方式的主要参数是籽粒含水量、入射辐射能通量密度(强度)和辐照时间。研究了不同红外处理方式对黑麦籽粒碳水化合物和蛋白质的影响。研究了红外处理强度对黑麦籽粒淀粉糊化程度和籽粒密度的影响。研究了红外处理对蛋白质变性后溶解度变化的影响。研究了红外处理方式对黑麦籽粒蛋白变性程度和组分组成的影响。研究了谷物压扁对碳水化合物复合物的影响以及红外强化处理对薄片消费优势的影响。研究了红外处理对水浸提液酸度、醇浸提液纤维含量的影响。研究了红外处理后黑麦籽粒压扁成片过程中的理化变化。以高营养价值和高纤维含量的薄片形式生产一种新的快餐产品,可以作为干早餐,这是合理的。
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引用次数: 0
Development of technology of rye wheat bread, enriched with calcium for consumers with a genetic predisposition to impaired bone mineral density 为骨密度受损的遗传易感性消费者开发富含钙的黑麦面包技术
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-5-35-39
I. Nikitin, S. Terentev, M. Klokonos
The  article  presents  specific  norms  of  nutrient  intake  in  identifying  a  predisposition  to  a  violation  of  bone  mineral  density,  established  taking  into  account  the  introduction  of  additional  multiplying  factors. When  developing  rye-wheat  bakery  products  recommended  for  nutrition  of  persons  with  a  genetic  predisposition  to  bone  mineral  density  disorders  (MDD),  both  traditional  and  non-traditional  types  of  raw  materials,  including  those  of  animal  origin,  can  be  used. A  promising  ingredient  for  expanding  the  range  of  rye-wheat  bakery  products  is  ricotta  whey  cheese. The  article  presents  the  results  of  research  on  the  development  of  calcium fortified  bread  recommended  for  the  nutrition  of  persons  with  a  genetic  predisposition  to  impaired  bone  mineral  density. Based  on  studies  of  the  quality  indicators  of  finished  bread  samples,  the  optimal  ratio  of  ricotta  to  flour  mass  was  established,  which  was  25 %.  The  developed  bread  was  characterized  by  an  increased  content  of  calcium  by  70 %  compared  to  the  control  sample,  as  well  as  other  nutrients  in volved  in  the  formation  of  bone  tissue:  phosphorus  – by  30 %,  selenium  –  by  45 %,  zinc  –  by  29 %,  vitamin  A  –  by  90 %. The  study  was  supported  by  the  world class  scientific  and  educational  center  «The  Russian  Arctic:  new  materials,  technologies  and  research  methods»  and  with  the  support  of  the  RFBR  grant  20-316-90043  «Sub-stantiation  of  approaches  and  development  of  a  methodology  for  designing  products  and  diets  of  personalized  nutrition  for  consumers  with  a  predisposition  to  violation  of  the  mineral  bone  density  and  the  development  of  osteoporosis».
本文提出了确定违反骨密度倾向的营养摄入的具体规范,建立考虑到引入额外的倍增因素。在开发推荐用于骨密度失调(MDD)遗传易感性人群营养的黑麦烘焙产品时,可以使用传统和非传统类型的原材料,包括动物来源的原材料。乳清干酪是一种很有前途的原料,可以扩大黑麦烘焙产品的范围。本文介绍了开发钙强化面包的研究结果,推荐用于具有遗传易感性的人的营养受损的骨矿物质密度。通过对成品面包样品质量指标的研究,确定了乳清干酪与面粉质量的最佳配比为25%。与对照样品相比,这种面包的特点是钙含量增加了70%,以及其他与骨组织形成有关的营养素:磷含量增加了30%,硒含量增加了45%,锌含量增加了29%,维生素A含量增加了90%。这项研究得到了世界一流的科学和教育中心“俄罗斯北极:新材料,新技术和研究方法”的支持,并得到了RFBR资助20-316-90043的支持“为易违反矿物质骨密度和骨质疏松症发展的消费者设计个性化营养产品和饮食的方法和方法的证实”。
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引用次数: 0
Creation of a mathematical model for the preparation of aerated dough 创建一个数学模型的准备充气面团
Pub Date : 2022-01-01 DOI: 10.32462/0235-2508-2022-31-8-36-39
N. Ermoshin, S. Romanchikov, I. Volkov
For the scientific substantiation of technical solutions for the modification of technological equipment for food production, a mathematical model for the preparation of aerated dough is proposed. On this basis, new technical means and technological equipment have been developed for the production of bread products from whipped yeast-free dough. The mathematical model makes it possible to investigate the quality indicators of aerated yeast-free dough and in particular, its uniformity, which depends on the geometric characteristics of the kneading chamber, the duration of mixing, and the volume of water. The main parameter that allows mode ling the mixing process is the suspension flow density and the mixing coefficient. The process of equalizing the suspension density along the height of the kneading chamber is modeled by the chamber system is modeled by a system of differential equations. The solution of these equations allows you to determine the optimal geometric parameters of the kneading chambers. Determining the parameters of the kneading chamber for forced mixing of ingredients through the use of mechanical energy makes it possible to calculate the technical characteristics of the design of the apparatus for preparing whipped yeast-free dough, these include the characteristics of the energy source, power plant (electric motor), source of thermal energy, compressor to create pressure in the kneading chamber.
为了科学地确定食品生产工艺设备改造的技术方案,提出了曝气面团制备的数学模型。在此基础上,开发了以无酵生面团为原料生产面包制品的新技术手段和工艺设备。该数学模型使研究曝气无酵母面团的质量指标成为可能,特别是其均匀性,这取决于揉制室的几何特性,混合的持续时间和水的体积。允许对混合过程进行建模的主要参数是悬浮流密度和混合系数。将悬浮密度沿捏合腔高度的均匀化过程建模,将捏合腔系统用微分方程组建模。这些方程的解允许您确定揉捏室的最佳几何参数。通过利用机械能确定用于强制混合配料的揉制室的参数,可以计算出制备无酵母搅拌面团的装置设计的技术特性,这些特性包括能量源、动力装置(电动机)、热能源、在揉制室中产生压力的压缩机的特性。
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