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Articles 331 - 360 of 642
Full-Text Articles in Food Processing
Effects Of Aqueous Extracts From Ficus Pumila On Pulmonary Dysfunction And Inflammation In Rats With Chronic Obstructive Pulmonary Disease, Yao Mei-Xiang, Wang Cheng-Yuan, Xie Jian-Hua, Zhu Xiao-Juan, Zhou Ming, Nie Shao-Ping, Zhong Hong-Guang
Effects Of Aqueous Extracts From Ficus Pumila On Pulmonary Dysfunction And Inflammation In Rats With Chronic Obstructive Pulmonary Disease, Yao Mei-Xiang, Wang Cheng-Yuan, Xie Jian-Hua, Zhu Xiao-Juan, Zhou Ming, Nie Shao-Ping, Zhong Hong-Guang
Food and Machinery
Objective: The preventive and therapeutic effects of the aqueous extract of Ficus pumila on COPD model rats were observed and its mechanism was also discussed. Methods: COPD model was established by intratracheal injection of lipopolysaccharide and smoking. Using the pulmonary function test, the level of related inflammatory factors detection in the BALF by ELISA, the blood gas analysis and HE staining for lung pathological observation. Results: The results showed that the indexes of the model rats were consistent with the pathological characteristic of COPD. The model group animals had obvious airflow obstruction, while the high dose of F. pumila aqueous …
Characteristics Of Freeze-Infrared Combined Drying Of Jujube Slices, Liu De-Cheng, Zheng Xia, Xiao Hong-Wei, Yao Xue-Dong, Shan Chun-Hui
Characteristics Of Freeze-Infrared Combined Drying Of Jujube Slices, Liu De-Cheng, Zheng Xia, Xiao Hong-Wei, Yao Xue-Dong, Shan Chun-Hui
Food and Machinery
Objective： Optimized the drying process of jujube slices and improved the product quality. Methods： Taking jujube slices as the research object, the correlation between conversion moisture content, infrared temperature and slice thickness and drying time and drying rate was studied, and the change rule of effective moisture diffusion coefficient of jujube slices in FD-IRD with conversion moisture content, infrared temperature and slice thickness was calculated, and the drying activation energy of jujube slices in FD-IRD was calculated according to the test data. Results： The lower the conversion moisture content is, the shorter the infrared drying time was. But the lower …
Research Progress On Degradation Of Aflatoxin B1 By Microbial Method According To Toxicity Sites Of Aflatoxin B1, Lian Sheng-Qing, Qian Xin, Liu Chu-Cen, Li Liang-Yi, Sun Chang-Po, Zhou Wen-Hua
Research Progress On Degradation Of Aflatoxin B1 By Microbial Method According To Toxicity Sites Of Aflatoxin B1, Lian Sheng-Qing, Qian Xin, Liu Chu-Cen, Li Liang-Yi, Sun Chang-Po, Zhou Wen-Hua
Food and Machinery
The toxicity sites and toxicity mechanism of aflatoxin B1（AFB1） were explored in this study, and aiming at the toxicity sites of AFB1, the advantages of microbial degradation of AFB1 were compared. Then the degradation mechanism of AFB1 by detoxifying enzyme method in microbial method was reviewed. Moreover, the composite application of detoxification enzyme method combined with other methods is prospected.
Research Progress Of Quality Evaluation Technology In Black Tea Fermentation Process, Xia Chang-Yi, Ran Qian-Song, Li Rui, Liu Ya-Bing
Research Progress Of Quality Evaluation Technology In Black Tea Fermentation Process, Xia Chang-Yi, Ran Qian-Song, Li Rui, Liu Ya-Bing
Food and Machinery
Fermentation is the key to the formation of characteristics and quality of black tea. It is very important to evaluate the fermentability of black tea quickly and accurately. In this paper, the application of artificial sensory evaluation technology, biochemical component detection technology, intelligent biomimetic technology, data fusion technology and intelligent biomimetic equipment in the evaluation of black tea fermentation quality in recent years was reviewed, and the development trend of intelligent biomimetic technology in the evaluation of black tea fermentation in the future was prospected.
Optimization Of The Infrared Drying Process For Ultrasonic Pretreatment Of Hami-Melon Slices, Li Yi-Can, Zheng Xia, Yao Xue-Dong, Yang Tao-Qing, Zhang Ji-Kai
Optimization Of The Infrared Drying Process For Ultrasonic Pretreatment Of Hami-Melon Slices, Li Yi-Can, Zheng Xia, Yao Xue-Dong, Yang Tao-Qing, Zhang Ji-Kai
Food and Machinery
Objective: This study aimed to the optimize infrared drying process of Hami-melon slices and improve quality and efficiency. Methods: Using ultrasonic treatment as a pretreatment method, the effects of drying temperature, slice thickness and ultrasonic treatment time on drying time, color difference value and vitamin C content were studied, and the drying time, quality and microstructure of the products were compared with those without ultrasonic treatment. Results: The optimal process parameters of ultrasonic pretreatment for infrared drying of Hami-melon slices were drying temperature 61 ℃, slice thickness 6 mm and ultrasonic treatment time 15 min. Under the control of these …
Research Status And Prospect Of Pretreatment Equipment And Technology For Freshwater Fish, Chen Lang, Wu Wen-Jin, Chen Sheng, Shi Liu, Guo Xiao-Jia, Wang Lan
Research Status And Prospect Of Pretreatment Equipment And Technology For Freshwater Fish, Chen Lang, Wu Wen-Jin, Chen Sheng, Shi Liu, Guo Xiao-Jia, Wang Lan
Food and Machinery
The current situation of the development of freshwater fish pretreatment processing industry and development level of freshwater fish pretreatment equipment were briefly described in this manuscript. The development history of mechanical for freshwater fish pretreatment was reviewed. Based on the processing technology of freshwater fish, combining the processing needs of different freshwater fish and freshwater fish products, the main structure composition form and operation mode of existing freshwater fish pretreatment was summarized. The current cutting-edge technology of existing visual recognition and automatic monitoring practical applications in domestic and foreign were included. The research direction combined with China's national conditions of …
Research Progress On The Effect Of Different Improvers On The Quality Of Frozen Dough, Xin Chen, Zhou Rui-Li, Gong Fang-Yuan
Research Progress On The Effect Of Different Improvers On The Quality Of Frozen Dough, Xin Chen, Zhou Rui-Li, Gong Fang-Yuan
Food and Machinery
Frozen dough is widely used in the food industry. But there are several problems arising such as: the deterioration of dough and the reduction of fermentation activity properties during frozen storage. Frozen dough improvers are important way to solve these problems. Currently, the commonly used improvers are polysaccharides, emulsifiers, proteins and others. This paper summarizes the main problems and influencing factors in the application of frozen dough, and the mechanism and application of different improvers on the quality of frozen dough were reviewed. The paper also prospects the research and development trend of improvers.
Cloud Point Extraction Coupled With Isooctane Back Extraction For Determination Of Eight Pesticide Residues In Tea Beverages By Gas Chromatography Mass Spectrometry, Xie Jie, Zhou Run, Kong Ling-Can, Meng Yuan-Hua, Wang Yu
Cloud Point Extraction Coupled With Isooctane Back Extraction For Determination Of Eight Pesticide Residues In Tea Beverages By Gas Chromatography Mass Spectrometry, Xie Jie, Zhou Run, Kong Ling-Can, Meng Yuan-Hua, Wang Yu
Food and Machinery
Objective: Rapid determination of organochlorine and pyrethroid pesticide residues in tea beverages. Methods: Selecting the non-ionic surfactant PEG-4000 as cloud point extraction, pesticides were extracted with isooctane by ultrasonic back extraction. The upper layer of isoctane solution was analyzed by Gas Chromatography/Mass. The isooctane solution was separated by HP-5 ms UI capillary column and analyzed qualitatively and quantitatively by GC/MS. Results: The eight pesticides showed a good linear relationship between 0.01～2.0 and 0.02～4.0 mg/L, respectively, with the correlation coefficients (R) of over 0.995. The detection limit and quantification limit of this method were 0.003~0.008 mg/L and 0.01~0.02 mg/L, respectively. The …
Research On Trajectory Planning Algorithm Of Artificial Meat Adipose Tissue 3d Printing, Chen Lian-Jie, Ning Meng, Chen Hui-Tao, Zhang Fan
Research On Trajectory Planning Algorithm Of Artificial Meat Adipose Tissue 3d Printing, Chen Lian-Jie, Ning Meng, Chen Hui-Tao, Zhang Fan
Food and Machinery
Objective: Aiming at the problems of unstable 3D printing quality and low printing efficiency of adipose tissue part of artificial meat based on plant raw materials, studied and improve the intelligent 3D printing trajectory motion algorithm matching with food materials, to reduce the accumulation and corners in the printing path. Methods: A trajectory planning method adapted to the characteristics of artificial meat adipose tissue raw materials was proposed. The complex section layer of the sliced model was divided into several simple polygon sub-partition contours using Bayesian algorithm, and an improved nearest neighbor method was used to determine the optimal motion …
Determination Of The Residues Of 9 Kinds Of Antiviral Drugs In Animal-Derived Sports Nutrition By Hilic-Ms/Ms, Guo Wei
Food and Machinery
Objective: This study aimed to help with strengthening the monitoring of antiviral drug residues in animal-derived sports nutrition products. Methods: A method for determining the residues of 9 kinds of antiviral drugs in animal-derived sports nutrition was established, by using hydrophilic interaction chromatography tandem mass spectrometry. The samples were extracted by 1% acetic acid-acetonitrile and purified by PRiME HLB column. The mobile phase system of acetonitrile-10 mmol/L ammonium acetate solution (containing 0.1% formic acid) was separated by Sielc Obelisc R column in gradient elution mode to achieve the separation of nine target components. Results: The 9 kinds of antiviral drugs …
Research On Control System Of Carya Cathayensis Shell Breaking Automatic Production Line Based On Plc, Zhao Yan-Li, Zhao Qian, Li Zhi-Qiang
Research On Control System Of Carya Cathayensis Shell Breaking Automatic Production Line Based On Plc, Zhao Yan-Li, Zhao Qian, Li Zhi-Qiang
Food and Machinery
Objective: In order to solve the problems of low automation level and low efficiency of the control system in the current automated production line of hickory shell breaking. Methods: On the basis of the existing automatic production line of hickory shell breaking, a control system of hickory shell breaking automatic production line based on PLC control technology is proposed. With PLC as the core, the control of the whole hickory shell breaking automatic production line was completed, including shell breaking machine, air separator, shell breaking separator, color sorter and other equipment. The feasibility of the method was verified by testing …
Evaluation On Fruit Texture And Quality Of Different Pear Varieties During Cold Storage, Zhou Hui-Juan, Ye Zheng-Wen, Zeng Si-Yi, Wang Xiao-Qing, Luo Jun
Evaluation On Fruit Texture And Quality Of Different Pear Varieties During Cold Storage, Zhou Hui-Juan, Ye Zheng-Wen, Zeng Si-Yi, Wang Xiao-Qing, Luo Jun
Food and Machinery
Objective: To determine the key points of pear quality formation and deterioration of different Pyrus pyrifolia pears during cold storage. Methods: Zaoshengxinshui, Hujingli18, Hujingli67 were used as materials, the fruit of three varieties with the same ripeness were stored in cold storage at （1.0±0.5） ℃ and relative humidity of 85%~90% for 60 days, fruit texture, total soluble solids, titratable acid, sugar and acid contents and 10 sensor values were determined every 10 days. Results: Hujingli18 and Zaoshengxinshui were the typical type of fructose accumulation,Hujingli 67 was the type of sorbitol accumulation, and all three varieties were the type of malic …
Research Progress Of Subcritical Extraction Technology In The Field Of Nutrient Component Extraction From Aquatic Products, Wang Wen-Jie, Chen Xiu-Biao, Chen Yun-Yun, Zhou Xu-Xia, Ding Yu-Ting
Research Progress Of Subcritical Extraction Technology In The Field Of Nutrient Component Extraction From Aquatic Products, Wang Wen-Jie, Chen Xiu-Biao, Chen Yun-Yun, Zhou Xu-Xia, Ding Yu-Ting
Food and Machinery
The fundamental extraction principle, production process, and instrument of the subcritical fluid (including water) technology in terms of the aquatic products materials were introduced in this review, and the academic progress of SFE technology in extracting and separating nutritional components from the aquatic products within the recent 10 years were summarized, in terms of proteins/peptides, lipids and polysaccharides from aquatic products. The advantages of different processing factors for the extraction of specific components were summarized, and the future development direction of SFE equipment and technology in the deep processing of aquatic products was prospected.
Design And Experiment Of One Cylinder Driving Five Rows Longan Core-Removing Mechanism, Xie Hai-Jun, Zhang Lian-Bo, Zhu Ming-Chao, Li Peng-Sheng
Design And Experiment Of One Cylinder Driving Five Rows Longan Core-Removing Mechanism, Xie Hai-Jun, Zhang Lian-Bo, Zhu Ming-Chao, Li Peng-Sheng
Food and Machinery
Objective: This paper puts forward one cylinder driving five-row longan core-removing mechanism for the low production efficiency of the pneumatic longan core-removing mechanism. Methods: The mechanism adopts one cylinder driving five rows handspikes in the direction, which transport longan to core-removing hole, after the longan is cut under the triangular blade, and another cylinder drives five handspikes in the vertical direction in order to remove longan core. Five longan cores is removed one working process, so that the production efficiency is improved. Results: The result of experiments showed that the order of influencing on longan core-removing loss rate is blade …
Flow Field Simulation And Experiment Of Mussel High Pressure Water Jet Cleaning Nozzle, Xie Fei, Yuan Yue-Feng, Wang Jia-Sheng
Flow Field Simulation And Experiment Of Mussel High Pressure Water Jet Cleaning Nozzle, Xie Fei, Yuan Yue-Feng, Wang Jia-Sheng
Food and Machinery
Objective： It solves the problems of large water consumption and poor cleaning effect existing in the traditional cleaning method of mussels. Methods： The geometric models of Axial fan-nozzle with different structural parameters were established by Solidworks software. After setting the parameters in fluent software, the velocity and water content of the internal and external flow fields of the jet were numerically calculated. Results： The larger the spray angle of the nozzle was, the faster the decay velocity of the flow field of the jet was, and the lower the water content was. The larger the equivalent diameter of the nozzle …
Effects Of Different Drying Methods On Degradation Characteristics Of Anthocyanins And Antioxidant Capacity In Blueberries, Zhao Wei, Huang Jia-Qi
Effects Of Different Drying Methods On Degradation Characteristics Of Anthocyanins And Antioxidant Capacity In Blueberries, Zhao Wei, Huang Jia-Qi
Food and Machinery
Objective: Reducing the degradation of anthocyanins in blueberry during drying. Methods: The far infrared drying was applied to the drying of blueberries, and compared with traditional hot air drying to explore the degradation characteristics of major anthocyanins and the changes of PPO enzyme activity and antioxidant capacity of blueberries under different drying methods. Results: High retention of two major anthocyanins （D3G and C3G） in blueberries under far-infrared drying, and the second-order mathematical model could better simulate their degradation process. Compared with hot-air drying, the rate constants （k） and entropy values （ΔS） of far-infrared dried blueberry anthocyanins were smaller, and the …
Comparison Of Fermentation Effects Of Six Kinds Of Probiotics On Rice Wine, Huang Zhi-Guo, Pu Ling-Ping, Ren Zhi-Qiang, Cheng Guo-Fu, Deng Jie
Comparison Of Fermentation Effects Of Six Kinds Of Probiotics On Rice Wine, Huang Zhi-Guo, Pu Ling-Ping, Ren Zhi-Qiang, Cheng Guo-Fu, Deng Jie
Food and Machinery
Objective: This study aimed to investigate the effects of 6 kinds of probiotics and their different adding ways on the production of rice wine. Methods: The probiotic rice wine was prepared by adding Lactobacillus rhamnosus BV-77, Lactobacillus fermentans TF-331, Lactobacillus saliva AP-32, Lactobacillus johnsoni MH-68, Lactobacillus acidophilus TYCA-06 and Lactobacillus casei CS-773. To compare the effects of saccharifying enzyme alone, saccharifying enzyme and yeast at the same time and adding methods （probiotic bran koji and probiotic powder） on alcohol content, reducing sugar, total acid and sensory quality of rice wine. Results: Yeast can promote the fermentation of probiotic rice wine …
Progress In The Application Of Nano-Antibody In The Detection Of Small Molecular Contaminants In Food, Jin Ping, Ding Hong-Liu, Jin Xiao-Hong, Shen Qi-Liang, Fan Chun-Yan
Progress In The Application Of Nano-Antibody In The Detection Of Small Molecular Contaminants In Food, Jin Ping, Ding Hong-Liu, Jin Xiao-Hong, Shen Qi-Liang, Fan Chun-Yan
Food and Machinery
The structure and characteristics of nano-antibody and their applications in the detection of mycotoxins, pesticide and veterinary drug residues, small molecule toxic substances and other small molecule pollutants were introduced, and the development direction of nano-antibody in biological detection technology and diagnosis research was prospected.
Rapid Determination Of Sulfites By Microextraction-Ion Chromatography In Red Wine, Wang Zhi-Hong, Lu Fei, Ni Yong-Fu, Cao Peng, Zhang Hong-Wei
Rapid Determination Of Sulfites By Microextraction-Ion Chromatography In Red Wine, Wang Zhi-Hong, Lu Fei, Ni Yong-Fu, Cao Peng, Zhang Hong-Wei
Food and Machinery
Objective: In view of the improvement of the national standard method of distillation pretreatment, combined with the advantages of ion chromatography, a rapid determination of sulfite by microextract-ion chromatography in red wine was established. Methods: Sulfur dioxide was released by microextraction device, which was absorbed by sodium hydroxide solution to form sulfite, and then oxidized to sulfate. The samples were then filtered by 0.45 μm filter and determined by ion chromatograph. Results: The concentration of sulfite ion in range of 1.0～50 mg/L showed a linear relationship with the peak area, with correlation coefficient of 0.999 9, and the detection limit …
Evaluation Of Uncertainty For The Determination Of Thiocyanate In Cheese By Inhibited Conductivity Ion Chromatography, Pan Can-Sheng, Zhang Zhi-Zhou, Xia Bing, Zhang Fei, Wu Ping, Wu Ling-Tao
Evaluation Of Uncertainty For The Determination Of Thiocyanate In Cheese By Inhibited Conductivity Ion Chromatography, Pan Can-Sheng, Zhang Zhi-Zhou, Xia Bing, Zhang Fei, Wu Ping, Wu Ling-Tao
Food and Machinery
Objective: To evaluate the uncertainty of the determination of thiocyanate in cheese by inhibition conductance ion chromatography. Methods: The content of thiocyanate in cheese was determined by inhibition conductance ion chromatography and a mathematical model was established. The source of uncertainty introduced in the process of the experiment was described, and the synthetic uncertainty was calculated for each uncertainty component. Results: The determination of thiocyanate was （10.2±0.56） mg/kg, k=2, p=95%. Conclusion: The uncertainty in the measurement process mainly comes from the concentration of thiocyanate in the test solution, followed by sample recovery and repeatability experiments.
Quality Change Of Prawn During Low-Frequency Electric Field Ice Temperature Storage, Yu Ming, Xu Li-Juan, Chen Hai-Qing, Liang Zuan-Hao, Chen Shan-Shan, Liang Feng-Xue, Ao Fei-Fei
Quality Change Of Prawn During Low-Frequency Electric Field Ice Temperature Storage, Yu Ming, Xu Li-Juan, Chen Hai-Qing, Liang Zuan-Hao, Chen Shan-Shan, Liang Feng-Xue, Ao Fei-Fei
Food and Machinery
Objective: This study aimed to explore the feasibility of low-frequency electric field assisted controlled freezing-point storage (CFPS) technology improving the quality of shrimp. Methods: Low-frequency electric field was applied on the basis of controlled freezing-point storage (LFEF+CFPS) to preserve prawns, and the contents of malondialdehyde and salt soluble protein, as well as the changes of Ca2+-ATPase activity, pH value, shear force, color difference and protein molecular weight of prawns were monitored. Results: Compared with the conventional CFPS, the LFEF+CFPS had no significant effect on the content of malondialdehyde, salt-soluble protein, pH, shear force and color of prawn meat. …
Preparation Of Antioxidant Hydrolysate Of Agaricus Blazei Murill, Chen Zhuo-Juan, Ke Xiu-Xian, Huang Xiao
Preparation Of Antioxidant Hydrolysate Of Agaricus Blazei Murill, Chen Zhuo-Juan, Ke Xiu-Xian, Huang Xiao
Food and Machinery
Objective: This study aimed to investigate the technological conditions for the preparation of antioxidant hydrolysate of Agaricus blazei Murill and analyze the nutritional components of the hydrolysate. Methods: Papain, cellulase and pectinase were prepared in mpapain∶mcellulase∶mpectinase ratio of 3∶4∶4 to dissolve the fruiting bodies of A. blazei. Response surface test was used to optimize the enzymatic hydrolysis process of A. blazei. Results: The optimal conditions of compound enzyme hydrolysis were as follows: compound enzyme dosage 0.5%, pH 6.2, hydrolysis temperature 49 ℃, hydrolysis time 147 min. Under these conditions, when the concentration of A. blazei …
The Reflection And Reconstruction Of The Penalty Exemption List System In The Field Of Food Safety, Lin Ke-Liang, Mo Chen-Yu, Yang Hai
The Reflection And Reconstruction Of The Penalty Exemption List System In The Field Of Food Safety, Lin Ke-Liang, Mo Chen-Yu, Yang Hai
Food and Machinery
Current food safety penalty list positioning fuzzy, content reiterated a lot of the current legislation, to avoid the defects of food safety substance problems. The reason is that the administrative law enforcement excessive list penalty for food safety risk, thus adopted a negative avoidance attitude. It is not only conducive to optimize the business environment, but also will cause adverse effects on food safety in a long-term view. In essence, the formulation of the exemption list is still administrative activities rather than legislative activities. The reconstruction of the food safety exemption list system should replace the current legislation in terms …
Design And Experiment Of Multi-Station Automatic Powder Loading System Based On Fuzzy Control, Mou Xiang-Wei, Nan Xiang-Gang, Yu Xin-Ye, Chen Lin-Tao
Design And Experiment Of Multi-Station Automatic Powder Loading System Based On Fuzzy Control, Mou Xiang-Wei, Nan Xiang-Gang, Yu Xin-Ye, Chen Lin-Tao
Food and Machinery
Objective: In view of the technical problems such as low efficiency and difficult automatic control of the automatic powder production line for factory rice noodle production. Methods: This research proposed a multi-station automatic powder loading system based on fuzzy control, selecting the deviation E1 between the detected value of the powder height and the preset value, the deviation change rate EC1 and the deviation between the current position of the powder loading car and the position to be loaded. The absolute value E2 was used as the input variable, and the motor speed U1 and the …
Three-Dimensional Flow Field Analysis Of A Progressively Accelerating Single Screw With Kneading Blocks, Tian Dong, Guo Shu-Guo, Wang Li-Yan
Three-Dimensional Flow Field Analysis Of A Progressively Accelerating Single Screw With Kneading Blocks, Tian Dong, Guo Shu-Guo, Wang Li-Yan
Food and Machinery
Objective: In order to improve the mixing performance and work speed of a single screw extruder increase. Methods: A coaxial gradual acceleration single screw using planetary wheel assemblies and mixing elements was designed. Using ansys/cfx to conduct the three-dimensional flow field analysis of the flow channel, the macro pressure field, speed vector diagram, speed streaming diagram and axial speed changes, were finished, which was compared to the only traditional pillar. Results: As the speed of the pillar continues to increase, the time for the material to stay in the barrel becomes shorter, and the extrusion efficiency of the gradual acceleration …
Full-Life Fatigue Analysis Of Vertical Retort Based On Fracture Mechanics, Liu Jin-Peng, Zhang Li-Mei, Huang Zhi-Gang
Full-Life Fatigue Analysis Of Vertical Retort Based On Fracture Mechanics, Liu Jin-Peng, Zhang Li-Mei, Huang Zhi-Gang
Food and Machinery
Objective: The fatigue strength of a new type of vertical retort under the cyclic load of heat engine was studied, especially the residual fatigue life of the pot body after the crack appeared and the factors affecting the fatigue crack propagation of the germicidal pot. Methods: The mechanical characteristics of retort under sterilization and three kinds of cyclic loads were analyzed by Workbench, the design fatigue life of the retort under three alternating stresses was studied based on the S-N curve. The effect of the initial crack size, pressure and temperature on the stress strength factor and residual fatigue life …
Simulation Study Of Factors Influencing Oil Yield During Cold Pressing Of Rapeseed, Huang Tao, Song Shao-Yun, Zhang Heng, Yin Fang
Simulation Study Of Factors Influencing Oil Yield During Cold Pressing Of Rapeseed, Huang Tao, Song Shao-Yun, Zhang Heng, Yin Fang
Food and Machinery
Objective: This study aimed to investigate the factors influencing the oil yield of rapeseed during pressing in a double screw oil press. Methods: To simulate the pressing process of rapeseed and to explore the effects of two factors, the speed of the press screw and the porosity, on the oil yield. Results: The oil yield of rapeseed was linearly related to the porosity, and a larger porosity, was associated with a lower oil yield. Moreover, the oil yield was negatively related to the speed of the press screw. Conclusion: The oil yield of rapeseed was highest when the porosity was …
Determination Of Discrete Element Simulation Parameters Of Rice Milling Machine, Zhang Ning, Cao Xian-Zhou, Wang Xin-Yu, Sun Yan-Ling
Determination Of Discrete Element Simulation Parameters Of Rice Milling Machine, Zhang Ning, Cao Xian-Zhou, Wang Xin-Yu, Sun Yan-Ling
Food and Machinery
Objective: To solve the problem that the roller is inconvenient to operate and the concept of rolling friction coefficient and sliding friction coefficient is confused. Methods: EDEM software was used to simulate the white milling process. Taking MNAW18 rice mill as a reference and taking Feng Liangyou series brown rice as a sample, a set of method for measuring discrete element simulation parameters of rice mill was established by independently setting up an experimental bench and combining with simulation calibration. Results: Using the self-made collision coefficient experimental device and video motion processing software, the collision recovery coefficients between brown rice …
Design Of Real-Time Detecting System For Grain Moisture In Dryer, Hu Yong, Jiang Yong-Cheng
Design Of Real-Time Detecting System For Grain Moisture In Dryer, Hu Yong, Jiang Yong-Cheng
Food and Machinery
Objective: To reduce grain mildew caused by high water content in storage. Methods: The function model of water content and detection frequency is determined by data measurement in multiple sites. A real-time monitoring system of grain moisture value in the dryer was designed based on STM32 microcontroller. Through the design of parallel plate sensor to detect the change value of capacitance of grain with different moisture content, through the hardware circuit to convert the capacitance value into frequency value. Through the single-chip microcomputer calculation can get the real-time moisture content of grain inside the dryer, and then through RS485 communication …
Finite Element Analysis Of Box Grid Magnetic Iron-Separator And Its Application In Milk Powder Production, Cheng Jian-Bo, Chen Bao-Ku, Li Hui, Guo Lin, Wang Yan, Sun Li-Rui
Finite Element Analysis Of Box Grid Magnetic Iron-Separator And Its Application In Milk Powder Production, Cheng Jian-Bo, Chen Bao-Ku, Li Hui, Guo Lin, Wang Yan, Sun Li-Rui
Food and Machinery
Objective: The optimal design scheme of box grid magnetic iron-separator in milk powder production process was explored. Methods: In this study, the working principle of the box grid magnetic iron-separator was explored by using the finite element simulation analysis method under real production conditions in a fully simulated milk powder plant. Through the single factor test, the effects of material drop height, the type of metal foreign matter, the field strength, and the net distance of the magnetic bar on the effective interception rate of the box grid magnetic iron-separator were explored, and the design solution was optimized by using …