Screening Of Sudan Dyes Adulteration In Grape Juice Based On Hptlc-Sers Detection,
2018
State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Screening Of Sudan Dyes Adulteration In Grape Juice Based On Hptlc-Sers Detection, Wang Liao, Ye Zhiyang, Wang Tiannan, Xu Xueming, Chen Yisheng, Yang Na, Wu Fengfeng, Jin Yamei
Food and Machinery
This paper presented a fast screening method for determining Sudan dye adulteration in grape juice, based on the combination of High Performance Thin-Layer Chromatography (HPTLC) and Surface Enhanced Raman Spectroscopy (SERS). Chromatography separation was achieved on silica gel plates using petroleum/acetone/acetic acid (9/1/0.1) as the mobile phase. After that, key factors including silver nano particle concentrations, electrolyte types/concentrations and incident laser wavelength was investigated with regarding to their effects on the quality of SERS results. Under optimized conditions, the method sensitivity reached to 0.01～0.05 mg/kg, while remarkable linearity (R2＞0.996) was obtained within the range of 1～20 mg/kg. Apart …
Evaluation Of Uncertainty Of Vanillin In Tobacco By Solvent Extraction Direct Injection-Gas Chromatography-Mass Spectrometry/Mass Spectrometry,
2018
Research and Development Center, China Tobacco Yunnan Industrial Co., Kunming, Yunnan 650231, China
Evaluation Of Uncertainty Of Vanillin In Tobacco By Solvent Extraction Direct Injection-Gas Chromatography-Mass Spectrometry/Mass Spectrometry, Li Chao, Xu Yong, Li Exian, Qin Yunhua, Wu Jiacan, Liu Xiuming, Wang Jiajun, Jiang Wei, Zhang Chengming
Food and Machinery
The content of vanillin in tobacco was determined by liquid solvent extraction direct injection -gas chromatography-mass spectrometry (LSE-GC-MS/MS). By calculating the uncertainty component and synthetic uncertainty of vanillin, the influence error on the detection results of vanillin content was achieved. The uncertainty of the measurement result of the substance was 1.37 μg/g.
Characteristic Analysis And Optimization Design Of Extrusion Cream Conveyor,
2018
Chengdu University of Technology, Chengdu, Sichuan 610059, China
Characteristic Analysis And Optimization Design Of Extrusion Cream Conveyor, Yang Jian, Li Xinwen, Liu Weibing
Food and Machinery
Objective By analyzing the working conditions of the conveyor, the factors affecting the transportation were studied and the mechanical characteristics model of the conveyor was determined. Methods Analytical mechanics method was used to obtain the mechanical characteristics model affecting the equal-pitch variable pitch factor. The three-dimensional model was built using Unigraphics NX and imported into Ansys workbench software. The static simulation, modal analysis and optimization design were performed. Results Through simulation analysis and optimization, the maximum deformation of the cream conveyor occurred at the top edge of the screw shaft, and the mass, total deformation and equivalent stress of the …
Design Of Stirring Mechanism In Milk Tanker Based On Triz Theory,
2018
School of Mechanical and Electrical Engineering, Beijing University of Technology, Beijing 100124, China
Design Of Stirring Mechanism In Milk Tanker Based On Triz Theory, Gao Guohua, Huang Juan, Liu Jichao
Food and Machinery
The TRIZ (theory of inventive problem solving) helped to solve the innovative design of the entire tank system. Through the analysis of the interaction between components, the conclusion was drawn that the use of artificially stirred iron ladles to agitate milk was insufficient. Using physical contradiction analysis, according to the degree of bending of the stirring device due to different heights during operation the dynamic characteristics A motor-driven, retractable and flexible mechanism was designed. The solid works of three-dimensional software was used to build a specific snoring mechanism model, and the feasibility of the flexible arm work was verified through …
Experimental Study On Negative Pressure Grading For Peanut,
2018
College of Mechanical and Electrical Engineering, Agricultural University of Hebei, Baoding, Hebei 071000, China
Experimental Study On Negative Pressure Grading For Peanut, Yin Shuangshuang, Jiang Haiyong, Li Na, Feng Yongfei
Food and Machinery
A peanut negative pressure grading device with simple structure, good grading effect and easy operation was designed based on Laval nozzle structure. Five factors affecting the vacuum degree in negative pressure tube were simulated and the structure size of air duct was determined based on Fluent. CFD-DEM coupled simulation software was used to simulate the negative pressure sorting of two kinds of peanuts with the same volume and small density difference, and the sorting differences of high quality and inferior grade peanuts were obtained. On this basis, taking the sorting height, conveyor belt speed and air inlet speed as experimental …
Design Of Walnut Online Weighing System Based On Support Vector Regression,
2018
Mechanical and Electrical Engineering College, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Northwest Agricultural Equipment, Ministry of Agriculture, Shihezi, Xinjiang 832000, China
Design Of Walnut Online Weighing System Based On Support Vector Regression, Jin Zuohui, Zhai Zhiqiang, Zhang Ruoyu, Zou Kunlin, Pang Yujie
Food and Machinery
In order to accurately detect walnut weight online, a walnut weight online testing system based on multi-sensor information fusion was designed, which was adopted the method of dynamic compensation and calibration to process signal collected from an acceleration sensor and symmetrical weight sensors and used the algorithm of support vector regression (SRV) to predict the walnut weight. Then, 400 walnuts were used to acquire weight data at speed of 0.02, 0.03 and 0.05 m/s respectively based on this system. Meanwhile the data were trained and verified. The better prediction model of walnut weight was determined as SVR model with linear …
Research On The Single Spherical Fruit Picking Terminal Device Based On A Binocular Vision,
2018
School of Information Engineering, Lingnan Normal University, Guangdong, Zhanjiang 524048, China
Research On The Single Spherical Fruit Picking Terminal Device Based On A Binocular Vision, Wang Runtao, Li Ming, Gong Zhenping
Food and Machinery
The terminal device was designed for spherical fruit picking. It was presented the working process and hardware structure of the device, including the binocular vision system, the embedded control core, the mechanical arm and the picker. The proposed algorithm of binding Hough transform circular detection could complete the occlusion fruit segmentation. Based on the improved PMF stereo correspondence point algorithm, the 3D matching of left and right fruit images was realized, and the 3D centered coordinates of fruit were also obtained. The results of the picking experiments on tomato, apple and citrus fruits showed that the module could coordinate and …
Design And Motion Simulation Of Automatic Packing Robot For Small Size Pouch Food,
2018
Sichuan Vocational and Technical College, Suining, Sichuan 629000, China
Design And Motion Simulation Of Automatic Packing Robot For Small Size Pouch Food, Cai Chuntang
Food and Machinery
In order to design an automatic packing robot for small size pouch foods placed in chaos, a parallel pick-up robot is designed on the basis of analyzing the actual requirement of bagged food packing, and its performance parameters and mechanical structure are determined. Then the space motion trajectory of the robot is planned, and Adams software is used. The planning path is simulated. The results show that the designed robot can grasp and release accurately, and move smoothly in the planned path, and the trajectory is standardized to meet the design requirements.
Performance Analysis And Improvement Of Cam Mechanism For The Capping Machine,
2018
College of Mechanical and Electrical Engineering, Anhui Jianzhu University, Hefei, Anhui 230601, China; The Postdoctoral Workstation of Anhui Province Luan Hengyuan Machinery Co., Ltd., Lu’an, Anhui 237100, China
Performance Analysis And Improvement Of Cam Mechanism For The Capping Machine, Yang Qingyan, Zhang Kuibang
Food and Machinery
This paper makes a theoretical analysis of cam mechanism on the capping machine of beer production line, and using SolidWorks and VB to extract the cam contour line, then obtain the speed, acceleration and pressure angle data of cam and roller follower by combining MATLAB with dynamic analysis. The analysis shows that the cam is unreasonable. In order to improve its performance, three spline curves are used to improve the cam profile. After analyzing the cam profile fitted with three spline curves, the flexible impact of the present cam mechanism is reduced and the performance of the capping machine is …
Effect Of Nano-Tio2 On Moisture Absorption And Antimicrobial Activity Of Poly-(Vinyl Alcohol)-Based Film,
2018
Shanghai Ocean University College of Food Science and Technology, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; Shanghai Professional Technology Service Platform on
Effect Of Nano-Tio2 On Moisture Absorption And Antimicrobial Activity Of Poly-(Vinyl Alcohol)-Based Film, Tang Zhipeng, Chen Chenwei, Xie Jing
Food and Machinery
In this study, nano-titanium dioxide was incorporated into polyvinyl alcohol, and polyvinyl alcohol active films with different concentration of nano-titanium dioxide (0.0%, 0.5%, 1.0%, 3.0%, 5.0%, and 7.0%) were prepared by solution casting method. The moisture absorption and antimicrobial properties of polyvinyl alcohol films modified with nano-titanium dioxide was studied. The hygroscopic properties of the films were studied through isothermal hygroscopicity experiments, and the experimental data were fitted and characterized based on GAB isothermal hygroscopic model. The antimicrobial properties of the films were analyzed through the growth inhibition experiments of Staphylococcus aureus and Escherichia coli, respectively. The results showed that …
Design And Realization Of The Food Inner Packaging Detection Device Based On The Machine Vision,
2018
College of Food and Bioengineering, Zhengzhou Univ. of Light Ind., Zhengzhou, Henan 450000, China
Design And Realization Of The Food Inner Packaging Detection Device Based On The Machine Vision, Jia Zhenzhen, Zhang Tao, Cao Xingqiang, Zeng Jian, Li Xiao, Yao Ermin
Food and Machinery
In order to solve inner packaging caused by food packaging machine faults, a food inner packaging detection device was designed based on the machine vision. The device was mainly composed of image acquisition, image processing system, judging and eliminating system. Depending on ultra-small CCD cameras to detect inner liner, at the same time the defective inner liner was determined and rejected via PLC program. By adopting different defective inner liner and FLUKE thermal imager, the detection rates of the machine vision and the stability of the equipment were tested. The results showed that the detection accuracy of the machine vision …
Design Of Ceramic Containers Products For Food Packaging Based On Kansei Engineering,
2018
College of Furniture and Design at Central South University of Forestry, Changsha, Hunan 410000, China
Design Of Ceramic Containers Products For Food Packaging Based On Kansei Engineering, Zhang Yushan
Food and Machinery
The purpose of this study is to apply the concept of Kansei Engineering and Kano Model to improve the design of ceramic containers for food packaging to better meet the needs of customers. Kansei Engineering is used as a design element to capture and transform the perceived (Kansei words) of the consumer. The design object should be examined in a comprehensive context. The paper used sampling method, case analysis method and questionnaire method. The result of this study was that the main factors that affect the consumer satisfaction of the ceramic container for food packaging could be divided into appearance …
Effect Of Pla/Pha Active Films On Preservation Of Blueberries During Cold Storage,
2018
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Engineering Research Center of Food Thermal-Processing Technology, Shanghai 201306, China
Effect Of Pla/Pha Active Films On Preservation Of Blueberries During Cold Storage, Shen Chunhua, Li Li, Du Yunfei
Food and Machinery
The degradable active antibacterial PLA/PHA films were prepared with 5% tea tree oil and 5% eucalyptus essential oil, respectively by extrusion-casting method. Fresh blueberries were stored at (4±1) ℃ and then packaged in PLA/PHA cling film, tea tree oil/PLA/PHA cling film and eucalyptus oil/PLA/PHA cling film, respectively. The basic properties of the three films were measured. The content of oxygen and carbon dioxide in the bags, decay rate, weight loss rate, firmness, total soluble solids content, total phenol, anthocyanin, and vitamin C content of blueberries were measured every 7 days. The quality of blueberries with different films were compared during …
Antibacterial Activity Of NΑ-Lauroyl-L-Arginate Ethylester Against Five Pathogenic Microorganisms Of Fruits And Vegetables,
2018
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
Antibacterial Activity Of NΑ-Lauroyl-L-Arginate Ethylester Against Five Pathogenic Microorganisms Of Fruits And Vegetables, Li Yang, Xu Xiaohui, Li Yang, Feng Fengqin
Food and Machinery
Antibacterial activity of Nα-lauroyl-L-arginate ethylester(LAE) against five pathogenic microorganisms of fruits and vegetables were investigated in this study. Bacteriostatic test in vitro was taken to research the antibacterial activity of LAE. Penicillium digitatum, Penicillium italicum, Botrytis cinerea, Alternaria alternate and Pectobacterium carotovorum subsp. Carotovorum were treated as the model bacteria of pathogenic microorganisms of fruits and vegetables, and the minimum inhibitory concentration(MIC) of LAE against these model bacteria were determined. The inhibition of LAE to the hypha growth for moulds and the bactericidal effect of LAE for bacteria were also determined. Then the combined antibacterial effects of LAE …
Effect Of Calcium Ascorbate And Ε-Polylysine Treatment On Preservation And Color-Protection Of Fresh-Cut Sweet Potato,
2018
College of Food Science, Southwest University, Chongqing 400715, China; National Demonstration Center for Experimental Food Science and Technology Education ﹝Southwest University﹞, Chongqing 400715, China
Effect Of Calcium Ascorbate And Ε-Polylysine Treatment On Preservation And Color-Protection Of Fresh-Cut Sweet Potato, Liu Shuo, Wang Liqun, Zhang Xinyi, Deng Lili, Zeng Kaifang
Food and Machinery
“Erlang Shao” were used to evaluate the effects of calcium ascorbate and ε-polylysine on improving the quality of fresh-cut sweet potato during 4℃ storage. To reveal the mechanism, the browning degree, the total number of colonies, the content of total phenol, as well as the activities of polyphenol oxidase (PPO), peroxidase (POD) and phenylalnine ammonialyase (PAL) of fresh-cut sweet potato were measured. The results indicated that comparing with control, 5% calcium ascorbate + 0.03% epsilon-polylysine could significantly retard the increase of the browning index, the total number of colonies and maintain a higher levels of total phenol content, inhibit the …
Effects Of Addition Of Prunus Mume On The Quality Of Beef Patties During Storage,
2018
College of Food and Boiengineering, Xihua University, Chengdu, Sichuan 610039, China
Effects Of Addition Of Prunus Mume On The Quality Of Beef Patties During Storage, Luo Ming, Ma Yuan, Yuan Yiping, Luo Yujie, Zhang Guirong, Yin Xiaocui, Xu Yingping
Food and Machinery
Using beef patties without and with 0.02% butylated hydroxytoluene (BHT) as controls, effects on lipid oxidation, protein oxidation, antibacterial activity and quality of beef patties supplemented with 5%, 10%, 15% and 20% Prunus mume (PM) were studied after storage at -18 ℃. The results showed that the beef patties with addition of 10%, 15% and 20% PM decreased TBARS values significantly compared to the control samples（P＜0.05）, and the lipid antioxidation of 20% PM was commensurate with 0.02% BHT during the storage. The TVB-N value of all treated samples reduced significantly after 4 d（P＜0.05）, and the beef patties added 20% PM …
Optimization Of Extraction Process Of Heparinoid From Swim Bladder And Evaluation Its Anticoagulant Activity,
2018
Guangdong Ocean University, College of Food Science and Technology, Zhanjiang, Guangdong 524088, China
Optimization Of Extraction Process Of Heparinoid From Swim Bladder And Evaluation Its Anticoagulant Activity, Zhou Siyi, Qu Yi, Zhong Saiyi, Du Zhenxing, Su Weimin, Chen Suhua, Hong Pengzhi, Wu Xiaohe
Food and Machinery
A natural heparin-like compound was isolated from swim bladder and its anticoagulant activities were determined. The response surface analysis based on Box-Behnken design was adopted to examine effects of protease consumption, extracting time and temperature on heparin-like compound extraction. The anticoagulant activity of swim bladder heparin-like compound was evaluated by APTT， PT and TT method. Consequently, the optimum conditions were as follows. The concentration of protease from Bacillus licheniformis was 5.4 mg/mL, extracted at 50 ℃ for 20 h. Under the control of these conditions, the predicted extraction rate by mathematical model was (1.79±0.05)%, and the standard error was 3.24%. …
Curren Tstatus And Trends Of Theoretical Research On Subcritical Fluid Extraction Of Agricultural Products,
2018
School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Curren Tstatus And Trends Of Theoretical Research On Subcritical Fluid Extraction Of Agricultural Products, Wu Qifei, Shi Jiachen, Sun Jun, Chen Zhongwei, Xu Bin
Food and Machinery
As a new extraction technology, subcritical fluid extraction has received more and more attention, due to its high efficiency and quality. The paper first introduces the basic principle of subcritical fluid extraction, and analyzes the effects of extraction solvent, temperature and pressure, time and frequency, and volume of solvent on the extraction efficiency. Furthermore, the kinetics and thermodynamics of the subcritical fluid extraction process are explained. Then, the quality of the oils obtained by subcritical fluid extraction and other extraction techniques is compared, indicating the migration of bioactive concomitants in the subcritical fluid. Finally, the future research direction of subcritical …
The Inducing Factors And Effects Of Stress Response In The Live Transport Of Fish,
2018
Shanghai Ocean University College of Food Science and Technology, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; Shanghai Professional Technology Service Platform on
The Inducing Factors And Effects Of Stress Response In The Live Transport Of Fish, Wu Bo, Xie Jing
Food and Machinery
On the basis of the analysis of fish transportation stress, the blood biochemical indexes, non specific immune cells and antioxidative functions were integrated, and the stress in the transportation of fish was reviewed in detail from different stress angles, such as hypoxia stress, ammonia nitrogen stress, density stress, objective transportation condition stress, temperature stress and so on. The reaction inducing factors and effects in the process of fish live transportation were proposed, in order to provide reference for the circulation and sale of live fish.
Functional Components In The Fruit Of Gardenia Jasminoides Ellis And Their Application,
2018
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Functional Components In The Fruit Of Gardenia Jasminoides Ellis And Their Application, Wang Li, Li Na, Li Yan, Qian Haifeng, Zhang Hui, Qi Xiguang
Food and Machinery
The components of Gardenia jasminoides Ellis and their healthy functions were summarized in this review. The relative products of the leaves and fruits were also introduced, which was helpful to the development and application of the Gardenia fruit.
