Rapid Determination Of Erythrosine In Beverages By Uplc,
2022
Beijing Dongcheng District Center for Disease Control and Prevention, Beijing 100009 , China
Rapid Determination Of Erythrosine In Beverages By Uplc, Xie Sai
Food and Machinery
Objective:In order to develop a method, an easy handling of samples and accurate and rapid detection of erythrosine by ultra-high performance liquid chromatography (UPLC) was established.Methods:The analysis was as follows: chromatographic column of ACQUITY UPLC BEH C18(100 mm×2.1 mm,1.7 μm), diode array detector with detection wavelength at 530 nm, column temperature at 40 ℃, mobile phase with acetonitrile and0.02 mol/Lammonium acetate solution (acetic acid to adjust pH 6.25), gradient elution including acetonitrile 0 min-5%, 2 min-25%, 3 min-45%,6 min-70%, 6.5 min-5% and 8 min-5%, flow rate at0.3 mL/min, and with injection volume of 5 μL. …
Influence Of Different Screw Configurations On The Flow Field Of Intermeshing Co-Rotating Twin-Screw Extruder,
2022
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048 , China ；Plastic Beijing Municipal Key Laboratory of Health and Safety Quality Evaluation Technology, Beijing 100048 , China
Influence Of Different Screw Configurations On The Flow Field Of Intermeshing Co-Rotating Twin-Screw Extruder, Zhang Xue-Chen, Zhang Li-Mei, Huang Zhi-Gang, Zhong-Yao, Li He
Food and Machinery
Objective:To explore the influence of different screw configurations of intermeshing co-rotating twin -screw extruder on the flow field and improve the material properties of PLA.Methods:The geometric model of double threaded element was established by using Solidworks software, and the numerical simulation was carried out in Polyflow. The post-processing analysis of the simulation results was carried out with the help of Fieldview software. The shear rate field, pressure field, velocity field, viscosity field and the residence time distribution RTD were compared to obtain the influence of screw groove depth on the flow field.Results:When the center distance …
Study On Performance Of Kitchen Waste Spiral Extrusion Device Based On Discrete Element Method,
2022
College of Mechanical and Information Engineering, Shandong University, Weihai, Shandong 264209 , China
Study On Performance Of Kitchen Waste Spiral Extrusion Device Based On Discrete Element Method, Feng Shuo, Wang Yan-Gang, Wang Xin-Kun, Yuan Hao, Liu Wei, Guo Peng-Ning
Food and Machinery
Objective:To study the physical and geometric factors that affect the extrusion effect between particles in the spiral extrusion dewatering device for kitchen waste, and to provide reference for selecting the parameters of the spiral extrusion and dewatering device.Methods:Based on the discrete element method, the state of the extruded particles was analyzed, and the extrusion situation of the material particles in the device was simulated by changing the filling coefficient, spiral speed and inclination angle.Results:When there was some inclination angle in the screw extrusion dehydration device with variable pitch, the filling coefficient increased and the rotation …
Design And Test Of Combined Rubber Seed Shelling Machine,
2022
College of Mechanical and Electrical Engineering, Hainan University, Haikou, Hainan 570228 , China
Design And Test Of Combined Rubber Seed Shelling Machine, Zhao Le-Ran, Wang Tao
Food and Machinery
Objective:In view of the existing rubber seed shelling machine, which have poor shelling and whole-kernel rate, is not enough to meet the needs of rubber seed shelling under different condition, a combined rubber seed shelling machine was designed. Through the combination of cutting and shearing of rubber seeds between the groove plate and the rotary blade, as well as extrusion and collision of the rotary blade roller, the shell is removed.Methods:The discrete element software EDEM was used to establish the discrete element model of rubber seed and shelling machine, and to simulate the separation process. Response surface …
Design And Implementation Of Small Color Recognition System For Beverage Bottle Caps,
2022
Huanghe Jiaotong University, Jiaozuo, Henan 454950 , China ；Henan Intelligent Manufacturing Technology and Equipment Engineering Technology Research Center, Jiaozuo, Henan 454950 , China
Design And Implementation Of Small Color Recognition System For Beverage Bottle Caps, Deng San-Xing, Sun Sai-Wei, Yang Meng-Meng, Zhang Kai, Li Shuai
Food and Machinery
Objective:This study focus on solving the problems that the current beverage bottle cap detection system has simple functions, large volume and low color recognition rate.Methods:A design scheme of small beverage bottle cap color recognition system based on ARM processor was proposed. By using the LineSim tool of the simulation software HyperLynx, a four-layer PCB board was designed and impedance matching simulation analysis was obtained after setting transmission line parameters. Through using the compilation software Jupyter Notebook to achieve threshold setting, target contour detection, target frame out and other functions.Results:Under bright and low light conditions, the …
Rock Tea Packaging Design Based On Perceptual Engineering,
2022
School of Civil Engineering and Architecture, Wuyi University, Wuyishan, Fujian 354300 , China ；School of Innovation and Design, City University of Macau, Macau 999078 , China
Rock Tea Packaging Design Based On Perceptual Engineering, Chen Jing-Wen
Food and Machinery
According to the perceptual engineering research paradigm, rock tea packaging design research framework of perceptual engineering is used as a guide to determine the typical samples and core perceptual vocabulary of rock tea packaging through various methods such as literature search, expert evaluation, KJ method, questionnaire survey, etc. The semantic difference method is used to quantify user perceptions and conduct principal component analysis to arrive at rock tea packaging presenting four core perceptual attributes: bright, environmentally friendly, exquisite and the mapping relationship between the core perceptual vocabulary and design elements was obtained through class category analysis to obtain a rock …
Isolation And Identification Of Pathogenic Fungi From Postharvest Blueberry In Sichuan Province And The Inhibition Effect On Them By Using Essential Oil,
2022
College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, Zhejiang 316000 , China ；College of Food Science, Sichuan Agricultural University, Ya’an, Sichuan 625000 , China
Isolation And Identification Of Pathogenic Fungi From Postharvest Blueberry In Sichuan Province And The Inhibition Effect On Them By Using Essential Oil, Liu Chun-Yan, Ding Jie, Deng Shang-Gui, Qin Wen, Liu Yan
Food and Machinery
Objective:This study aimed to provide strategy for controlling the fungal diseases of postharvest blueberry in Sichuan province.Methods:The pathogenic bacteria from 14 planting bases in Sichuan Province were isolate, identified, pathogenicity determination. Moreover, the effects of temperature and light on mycelia growth of the dominant and subdominant strains of blueberry after harvest were studied, and the effective natural antibacterial components against them were screened.Results:The blueberry postharvest rot diseases were caused by the following nine kinds of fungi:Aspergillus niger,Aspergillus tubingensis,Neofusicoccum parvum,Neopestalotiopsissp.,Fusarium graminearum,Alternaria alternata,Mucor fragilis,Penicilliumsp.,Cladosporium xylophilum.Aspergillus niger was the dominant species with the highest isolation frequency and the …
Effect Of Advanced Removal Of Huangshui Fluid On Quality And Yield Of Nongxiang Flavor Crude Baijiu Of Solid-State Fermentation,
2022
College of Food and Chemical Engineering, Shaoyang University, Shaoyang, Hunan 422000 , China ；Key Laboratory of Brewing Ecotypically New Technology and Application of Hunan Universities, Shaoyang, Hunan 422000 , China ；Xiangjiao Distillery Co., Ltd., Shaoyang, Hunan 422000 , China
Effect Of Advanced Removal Of Huangshui Fluid On Quality And Yield Of Nongxiang Flavor Crude Baijiu Of Solid-State Fermentation, Yang Zhi-Long, Deng Jia-Wei, Yu You-Gui, Chen Xue-Peng, Xiong Xiang, Wan Yong
Food and Machinery
Objective:The aim of this study was to improve the quality of Nongxiang flavor crude Baijiu.Methods:The effect of advancd removing Huangshui fluid in on the quality and yield of crude Baijiu was studied in multi-grain traditional Baijiu at different times during the cellar fermentation cycle.Results:When Huangshui fluid was removed at the 40th day of cellar fermentation of distilled alcoholic fermentative material, compared to the control group at 60th day, the yield of the crude Baijiu was higher (P＜0.05), and the high quality ratio of crude Baijiu, ethyl hexanoate content and ethyl hexanoate/ethyl lactate in …
Optimum Parameters And Application Of Buckwheat Noodle Composite Preformed Powder,
2022
Hotel College, Jiangsu Food & Pharmaceutical Science College, Huaian, Jiangsu 223003 , China
Optimum Parameters And Application Of Buckwheat Noodle Composite Preformed Powder, Zhao Min, Yang Bao-Wei, Hu Jian, Wang Rong-Lan
Food and Machinery
Objective:This study aimed to explore the best parameters of buckwheat noodle composite preformed powder.Methods:Single factor experiment, multi-index comprehensiveevaluation method and orthogonal experiment were used to optimize the special composite preformed powder recipe of buckwheat noodles.Results:The best parameters of buckwheat noodle composite preformed powder were 45% of buckwheat flour, 8% of modified starch, 1.2% of compound phosphate and 3% of gluten powder. In this situation, the tensile area of composite flour dough was 3 378.6 g·mm; the stabilization time was 7.23 min, the content of wet gluten was 23.71%; the sensory score was89.2; the comprehensive score …
Advance In Research On Heat Treatment Mechanism Of Infrared Radiation And Its Application In Foods,
2022
Shandong Academy of Agricultural Machinery Sciences, Jinan, Shandong 250100 , China
Advance In Research On Heat Treatment Mechanism Of Infrared Radiation And Its Application In Foods, Yu Xian-Long, Chu Bin, Xiao Hong-Wei, Zhang Wei-Peng, Zhao Feng, Zhang Zong-Chao
Food and Machinery
The development of food infrared heating theories were discussed in this review, and the advancement of infrared heating in food processing were summarized. Moreover, the principle of food processing and process optimum method in various food infrared thermal treatment technologies, including sterilizing, thawing, blanching, baking, peeling and drying processes were also discussed.
Research Progress On Industrial Auxiliary Materials Fermentation Of Cigar Tobacco Leaf,
2022
College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan 450002 , China
Research Progress On Industrial Auxiliary Materials Fermentation Of Cigar Tobacco Leaf, Ye Hui-Yuan, Ding Song-Shuang, Duan Wang-Jun, Huang Ming-Yue, Shi Xiang-Dong
Food and Machinery
This paper reviews the exogenous additives such as microorganisms, enzymes and excipients currently applied to cigar tobacco leaf fermentation and their research and application results to improve the quality of tobacco leaves, and prospects the research direction of cigar tobacco industrial excipient fermentation.
Research Progress On Composition And Processing Of Flos Lonicerae,
2022
College of Food Science and Technology, Sichuan Agricultural University, Yaʼan, Sichuan 625000 , China
Research Progress On Composition And Processing Of Flos Lonicerae, Luo Lian, Ye Meng, Lin Jing, Chen An-Jun, Mo Han-Ru, Yu Jian-Bing, Liu Xing-Yan
Food and Machinery
In this paper, the research on the active components, dry processing methods, extraction of functional components and processed products of Flos Lonicerae at home and abroad in recent years were summarized and discussed, and the development direction of Flos Lonicerae in the future was prospected.
Research Progress On The Determination Of Free-Base Nicotine In Tobacco And Tobacco Products,
2022
China National Tobacco Quality Supervision and Test Centre, Key Laboratory of Tobacco Biological Effects, Zhengzhou, Henan 450001 , China
Research Progress On The Determination Of Free-Base Nicotine In Tobacco And Tobacco Products, Zhang Hao, Han Shu-Lei, Chen Huan, Hou Hong-Wei, Hu Qing-Yuan
Food and Machinery
The research progress on determination of free-base nicotine in tobacco and tobacco products in the past 30 years was reviewed and discussed, including solvent extraction method, headspace solid-phase microextraction method,1H NMR, Henderson-Hasselbalch method and spectroscopy method, etc. Advantages and limitations of each method were summarized and discussed and the development in this field was prospected.
Optimal Extraction And Fatty Acid Analysis Of Oil From Canavalia Gladiata,
2022
Changsha University of Science and Technology
Optimal Extraction And Fatty Acid Analysis Of Oil From Canavalia Gladiata, Han Xiao-Cun
Food and Machinery
Objective:To make up for the lack of research on the extraction technology, fatty acid composition, and physical and chemical properties of Canavalia gladiata oil in China, and provide technical support for the development and utilization of Canavalia gladiata oil.Methods:The process parameters of extracting Canavalia gladiata oil with n-hexane were optimized. Gas chromatography-mass spectrometry (GC-MS) was used to analyze and determine the type and content of fatty acids in Canavalia gladiata oil.Results:The best extraction conditions for the Canavalia gladiata oil were as follows: the ratio of liquid-to-material was 25∶1 (mL/g), the temperature for extracting was 70 …
Effects Of Drying And Freezing On Volatile Components Of Zingiber Mioga(Thunb.) Rosc.,
2022
College of Food Science and Technology, Hunan Agricultural University, Changsha,Hunan 410128 , China
Effects Of Drying And Freezing On Volatile Components Of Zingiber Mioga(Thunb.) Rosc., Zhang Si-Jie, Luo Feng-Lian, Deng Miao, Ren Shu-Rui, Qing Zhi-Xing
Food and Machinery
Objective:This study aimed to compare the differences of volatile components in flower buds of Zingiber mioga after drying and freezing.Methods:Volatile components in flower buds of Z. mioga was determined by headspace solid phase microextraction Gas Chromatography-Mass Spectrometer(HS-SPME-GC-MS) after drying and freezing, and the relative content was calculated by peak area normalization method.Results:Drying and freezing treatment had a significant effect on the volatile components of Z. mioga flower bud. A total of 152 volatile components were identified in fresh, frozen and dried Z. mioga flower bud, containing a variety of volatile pharmacodynamic components, mainly olefins, including …
Hot-Air Drying Characteristics And Mathematical Model Of Cantaloupe Slices,
2022
College of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650504 , China
Hot-Air Drying Characteristics And Mathematical Model Of Cantaloupe Slices, Zhang Xue Bo, Liu Xi Xian, Zou San Quan, Zhao Zhen Chao
Food and Machinery
Objective:In order to improve the quality of cantaloupe production and shorten the drying period.Methods:Use different blanching time (0.5, 1.0, 1.5, 2.0, 2.5 min), impregnation liquid (0.1%, 0.2%, 0.3%, 0.4%, 0.5% citric acid solution) to pretreat cantaloupe slices, and study different hot air temperature (35, 45, 55, 65, 75 ℃), air velocities (0.5, 1.0, 1.5, 2.0,2.5 m/s), and slice thicknesses (2, 4, 6, 8, 10 mm) on the hot air drying characteristics and moisture diffusivity coefficient of cantaloupe slices, different thin-layer drying mathematical models were fitted.Results:0.4% citric acid pretreatment yields the best quality dried product, and …
Analysis Of Characteristics And Energy Consumption Of Microwave Drying Of Pork,
2022
School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan, Ningxia 750021 , China
Analysis Of Characteristics And Energy Consumption Of Microwave Drying Of Pork, Chen Peng-Fei, Ling Jing, Yuan Xiao-Hong, Hu Tian-Tian, Wan Jiang-Hua
Food and Machinery
Objective:Exploring the microwave drying characteristics of pork and optimizing the microwave drying process of meat.Methods: microwave drying equipment with microwave frequency of 2 450 MHz and microwave output power of 70, 140, 210, 280, 350, 420 W were used for microwave drying of pork with dry mass of 20, 25, 30 g in this paper; Five classical thin-layer drying models were selected for non-linear fitting of drying data,R2(coefficient of determination) and RMSE (root mean square error) were used as evaluation indexes to screen the best drying model.Results:The Logarithmic model was the best model for microwave …
A Method Of Tobacco Leaf Grade Recognition Based On Convolutional Neural Network,
2022
Zhengzhou University, Zhengzhou, Henan 450001 , China
A Method Of Tobacco Leaf Grade Recognition Based On Convolutional Neural Network, Jiao Fang-Yuan, Shen Jin-Yuan, Hao Tong-Meng
Food and Machinery
Objective:To solve the problem of low accuracy of tobacco grading. Methods:An improved tobacco leaf grading model based on convolutional neural network was proposed. According to the VGG16 network structure, the network model was built in a custom way. The traditional convolution was replaced by the hole convolution, which increased the image receptive field while avoiding. The loss of image features was changed, and the activation function was changed to Leaky_relu. The data distribution was corrected, and the hard saturation problem of the ReLU function was solved. 41 levels of tobacco leaf pictures were used for testing. Results:The …
Research Progress On Extraction,Pharmacological Effects And Microencapsulation Of Peppermint Oil,
2022
Wuhan Huanghelou Flavors and Fragrances Co., Ltd., Wuhan, Hubei 430040 , China ；Wuhan Huanghelou New Materials Science and Technology Development Co., Ltd., Wuhan, Hubei 430040 , China
Research Progress On Extraction,Pharmacological Effects And Microencapsulation Of Peppermint Oil, Shao Pei, Zhang Yu-Ying, Zhong Lin, Wang Pan, Miao Li-Kun
Food and Machinery
In this paper, the research progress of peppermint oil at home and abroad in recent years was summarized from the aspects of extraction, pharmacological action and preparation method of microcapsule, and the new microcapsule technology is the follow-up research direction.
Research Progress On Detection Methods Of Chemically Synthesized Coccidiostat Residues,
2022
Food and Bioengineering College, Henan University of Science and Technology, Luoyang, Henan 471003 , China ；Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002 , China
Research Progress On Detection Methods Of Chemically Synthesized Coccidiostat Residues, Pang Xing-Hao, Hu Xiao-Fei, Xing Yun-Rui, Sun Ya-Ning, Wang Yao
Food and Machinery
In this review, the detection Methods of chemically synthesized coccidiostat residues were summarized, with emphasis on the research progress of high performance liquid chromatography-tandem mass spectrometry, enzyme-linked immunosorbent assay, immunochromatographic test paper, surface enhanced Raman spectroscopy and other Methods. The development status and trend of detection Methods were discussed, and the future development direction was prospected.
