Evaluation On Fruit Texture And Quality Of Different Pear Varieties During Cold Storage,
2023
Forest and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Key Laboratory of Protected Horticultural Technology, Shanghai 201403, China
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,
2023
College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China; Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, Zhejiang 310014, China; National R&D Branch Center for Pelagic Aquatic Products Processing 〔Hangzhou〕, Hangzhou, Zhejiang 310014, China
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,
2023
School of Information Technology, Beijing Institute of Technology, Zhuhai Campus, Zhuhai, Guangdong 519000, China; Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, Heyuan, Guangdong 517000, China
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,
2023
College of Ocean Engineering Equipment, Zhejiang Ocean University, Zhoushan, Zhejiang 316022， China
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,
2023
Jilin Province Economic Management Cadre College, Changchun, Jilin 130012, China
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,
2023
Sichuan University of Science & Engineering, Liquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Yibin, Sichuan 644000, China
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,
2023
Suzhou Institute of Product Quality Supervision and Inspection, Suzhou, Jiangsu 215128, China
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,
2023
Longkou Customs of the People's Republic of China, Longkou, Shandong 265700, China
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,
2023
Guangdong Academy of Sciences 〔China National Analytical Center, Guangzhou〕, Guangzhou, Guangdong 510070, China; Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Institute of Analysis, Guangzhou, Guangdong 510070, China; Guangdong Provincial Engineering Research Center for Efficacy Component Testing and Risk Substance Rapid Screening of Health Food, Guangzhou, Guangdong 510070, China
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,
2023
Department of Food and Environmental Engineering, Yangjiang Polytechnic, Yangjiang, Guangdong 529566, China; Guangdong Provincial Engineering and Technology Research Center of Food Low Temperature Pocessing of Guangdong Provice, Yangjiang, Guangdong 529566, China; Yangtze Delta Region Institute of Tsinghua University, Jiaxing, Zhejiang 314006, China
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,
2023
Fuzhou University Zhicheng College, Fuzhou, Fujian 350102, China
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,
2023
Law School of Guangxi University, Nanning, Guangxi 530004, China
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,
2023
Electronic Engineering College, Guangxi Normal University, Guilin, Guangxi 541004, China; Teachers College for Vocational and Technical Education, Guangxi Normal University, Guilin, Guangxi 541004, China
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,
2023
College of Mechanical and Power Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning 110142, China
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,
2023
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China
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,
2023
School of Mechanical Engineering, Wuhan Light Industry University, Wuhan, Hubei 430023, China
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,
2023
School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China
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,
2023
School of Electrical Engineering and Automation, Anhui University, Hefei, Hunan 230601, China
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,
2023
Key Laboratory for Food Science and Engineering, College of Food Engineering, Harbin University of Commerce, Harbin, Heilongjiang 150076, China; Heilongjiang Feihe Dairy Co., Ltd., Qiqihar, Heilongjiang 161005, China
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 …
Effect Of Antifreeze On The Quality Of Cooked Crawfish Tail Meat After Freeze-Thawed,
2023
College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
Effect Of Antifreeze On The Quality Of Cooked Crawfish Tail Meat After Freeze-Thawed, Hu Xiao-Bo, Chen Wen-Fei, Gu Ze-Mao, Zhou Sheng-Bi, Xiong Shan-Bai, Hu Yang
Food and Machinery
Objective: The study aimed to improve the storage quality of frozen cooked crawfish tail meat. Methods: Crawfish tail meat were immersed in different proportions of complex phosphate, trehalose and sorbitol antifreeze agents. The thawing loss rate, water content and distribution, water retention, salt-soluble protein, total thiol content, texture properties of crawfish tail meat after freeze-thawed were measured, and the microstructure changes were observed to evaluate the effect of each antifreeze agent. The antifreeze agent with better effect was selected as horizontal factor to design orthogonal experiment, so as to optimize the appropriate recipe of antifreeze agents. Results: 1.5% complex phosphate, …
