Tomato Weight Prediction Based On Image Processing,
2022
Shanxi Agricultural University, Taigu, Shanxi 030801 , China ；Intelligent Equipment Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097 , China
Tomato Weight Prediction Based On Image Processing, He Ting-Ting, Li Zhi-Wei, Zhang Xin, Zhang Zhong-Li-Li, Xiao Xue-Peng, Dong Jing
Food and Machinery
Objective：A tomato weight detection method based on image processing was established to realize non-contact tomato weight detection. Methods：The binary image of tomato was obtained through image processing. The geometric features of tomato were extracted by pixel statistics and minimum circumscribed rectangle method, and correlation analysis was made between the characteristics and the real value of tomato weight, then the regression model of tomato weight detection with geometric features as parameters was established. Results：Compared with the real size of tomato, the measurement error of transverse and longitudinal diameter of Tomato by minimum external rectangle method was less than …
Primary Structure Characterization And Antioxidant Activity Of Polysaccharide From Zizyphus Jujuba Cv. Banzao,
2022
Department of Life Science, Yuncheng University, Yuncheng, Shanxi 044000 , China
Primary Structure Characterization And Antioxidant Activity Of Polysaccharide From Zizyphus Jujuba Cv. Banzao, Li Nan, Zhang Xiangfei, Yang Chunjie
Food and Machinery
Objective:This study aimed to analyze the physicochemical properties, primary structure and antioxidant activity of polysaccharide from Zizyphus jujuba cv. Banzao.Methods:The polysaccharides were prepared by water extraction and alcohol precipitation, deproteinization with trichloroacetic acid and decolorization with hydrogen peroxide. The physicochemical properties of polysaccharides were studied, and the possible structures were predicted by Ultraviolet-visible (UV-Vis) and infrared (IR) spectroscopy. Finally, the free radical scavenging ability was determined.Results:The polysaccharide from Z. jujuba cv. Banzao contained the content of total sugar and uronic acid with 52.30% and 46.22%, respectively, and showed 64.70% of esterification degree, which was an …
Effects Of The Dark Blue Pigment From Vaccinium Bracteatum Thunb Leaves On The Physicochemical Properties Of Rice Protein,
2022
Jiangsu Institute of Tourism, Yangzhou, Jiangsu 225000 , China
Effects Of The Dark Blue Pigment From Vaccinium Bracteatum Thunb Leaves On The Physicochemical Properties Of Rice Protein, Zhao Jiajia, Wang Meng, Li Yan, Qian Haifeng, Fan Mingcong, Wang Li
Food and Machinery
Objective:This study was to explore the improvement of structural and emulsifying properties of rice protein by interacted with the dark blue pigment of Vaccinium bracteatum Thunb leaves. Methods:The dark blue pigment was prepared from VBTL, and the changes of structural and emulsifying properties of rice protein before and after dyeing were analyzed. Results:The formation of binary complexes between the dark blue pigment and the rice protein decreased the color values of L* and b*, and the hue of the pigment-protein complex changed to dark blue color with the increase of the pigment concentration. The water solubility …
Effects Of Glycerol Application Ratio On The Distribution Of Moisture, Nicotine And Glycerol In Heated Cigarettes,
2022
Technology Center, China Tobacco Jiangsu Industrial Co., Ltd., Nanjing, Jiangsu 210019 , China
Effects Of Glycerol Application Ratio On The Distribution Of Moisture, Nicotine And Glycerol In Heated Cigarettes, Zhu Longjie, Zhang Yuan, Cao Yi, Qin Yanhua, Liu Mengmeng, Zhu Huaiyuan
Food and Machinery
Objective:In order to optimize the process parameters of tobacco sheet of heated cigarette. Methods:12 gradient grades of tobacco sheets with glycerol addition ratio of 5%~30% were prepared under laboratory conditions. The mass of moisture, nicotine and glycerol in heated cigarette smoke, filter condensation section and tobacco core section were detected by GC-TCD method. And the mass distribution characteristics of main components, release rate, filtration rate and transfer rate were analyzed. Results:When 5%~30% glycerol was applied to the heated cigarette tobacco sheets, the water release rate was 88.6%~92.3%, which was mainly distributed in the smoke and filter condensation …
Uncertainty Evaluation For Determination Of Isocarbophos Residues In Tea By Quechers-Gas Chromatography-Tandem Mass Spectrometry,
2022
Nice Detection & Technology Services Co., Ltd., Jiaxing, Zhejiang 314001 , China
Uncertainty Evaluation For Determination Of Isocarbophos Residues In Tea By Quechers-Gas Chromatography-Tandem Mass Spectrometry, Lu Zhenhua, Yu Lifang, Cai Danping, Li Cheng
Food and Machinery
Objective:The uncertainty of determination of Isocarbophos residues in tea by using QuEChERS-gas chromatography-tandem mass spectrometry techniqne was evaluated. Methods:Isocarbophos residues in tea was determined by using "GB 23200.113—2018 National food safety Standard-Determination of 208 pesticides and metabolites residues in plant origin-Gas chromatography-tandem mass spectrometry method", and factors in the determination of isocarbophos were analyzed by establishing a mathematical model, including sample weighing, volume, calibration of standard solutions, repeatability and recovery rate, etc.. Results:When the residual amount of isocarbophos in tea was 0.050 mg/kg, the expanded uncertainty was 0.007 mg/kg, and the determination result was expressed as:ω …
Construction And Application Of A Comprehensive Evaluation Index System For Food Safety,
2022
Tianjin Academy of Science and Technology for Development, Tianjin 300171 , China
Construction And Application Of A Comprehensive Evaluation Index System For Food Safety, Zhou Yuan, Xue Rui-Nan, Wei Ying, Li Ming-Qi
Food and Machinery
Objective:This study aimed to build a unified and standardized comprehensive food safety evaluation index system. Methods: The research status of the comprehensive evaluation index domestic and abroad system of food safety were summarized from two levels of theoretical research and practical exploration. Results: Based on the analytic hierarchy process and Delphi method, a set of comprehensive evaluation index system of food safety with 6 criteria, 24 first-level indicators and 41 secondary indicators was constructed; this set of indicators combined with relevant statistical data was used to carry out an empirical analysis of the food safety situation in …
Determination Of Three Methylimidazole Compounds In Food Flavors By Solid Phase Extraction Coupled With Ultra-Performance Liquid Chromatography-Mass Spectrometry,
2022
Changsha Environmental Protection College, Changsha, Hunan 410004 , China
Determination Of Three Methylimidazole Compounds In Food Flavors By Solid Phase Extraction Coupled With Ultra-Performance Liquid Chromatography-Mass Spectrometry, Zhou Yanhua, Li Tao, Xiang Jun, Xu Wenyang
Food and Machinery
Objective: This study aimed to establish a method for quick determination of 3 kinds ofmethylimidazole compounds in food flavor. Methods:The food flavor was extracted with 5% trichloroacetic acid solution and purified with PCX mixed cationic solid phase extraction column. Finally, the qualitative and quantitative analysis was carried out by ultra- performance liquid chromatography-mass spectrometry (UPLC-MS/MS) and internal standard method. Results: The linear relationship between the three methyl imidazole compounds was good in the range of 5.0~400.0 ng/mL, with correlation coefficient R2≥0.997. The limits of detection were 0.030~0.450 μg/kg and the limits of quantification (LOQ) …
Research On Quantitative Fish Segmentation Method Based On Line Laser Scanning,
2022
School of Mechanical Engineering & Automation, Dalian Polytechnic University, Dalian, Liaoning 116034 , China
Research On Quantitative Fish Segmentation Method Based On Line Laser Scanning, Ma Junxiao, Gong Ze, Kang Jiaming, Zhang Xu, Wang Huihui, Li Gang
Food and Machinery
Objective：To realize the mechanization of quantitative cutting of fish before processing fish products. Methods:Obtained the fish contour data by linear laser scanning， the distribution of fish body weight with body length was obtained. The quantitative cutting models of fish body with fixed weight and equal weight were constructed, and the validity and accuracy of the method were verified by experiments. Results:The results showed that the predicted curve of fish body weight distribution was close to the real distribution curve, the accuracy of 10 fish was above 91%. The mean absolute errors were 0.16, 0.38 and 1.15 g, …
Design Of On-Line Nondestructive Rapid Detection System For Tilapia Descaling Rate Based On Machine Vision,
2022
School of Mechanical Engineering & Automation, Dalian Polytechnic University, Dalian, Liaoning 116034 , China
Design Of On-Line Nondestructive Rapid Detection System For Tilapia Descaling Rate Based On Machine Vision, Li Pengpeng, Li Yule, Zeng Fanyi, Liu Yang, Zhang Xu, Wang Huihui
Food and Machinery
Objective:Improve the quality and efficiency of tilapia processing and increase the added value of products.Methods:For the fluorescence response difference of fish scales and fish skin under ultraviolet excitation, a rapid detection system for tilapia descaling rate based on machine vision technology was constructed. After image pre-processing, background segmentation, ROI region selection, and rapid identification of discaled areas, the scaled and descaled area images were obtained. Then the scaling rate was calculated and the detection accuracy of the system was tested. Results:The accuracy of the system scaling rate detection ranged from 90.18% to 94.14%.Conclusion:The automatic …
The Design Of 3d Icing Sugar Printer Based On Room Temperature Extrusion,
2022
Hanyin Electronic Advanced Technology Innovation Laboratory, Xiamen University Tan Kah Kee College, Xiamen, Fujian 363105 , China ；School of Mechanical and Electrical Engineering, Xiamen University Tan Kah Kee College, Xiamen, Fujian 363105 , China
The Design Of 3d Icing Sugar Printer Based On Room Temperature Extrusion, Wang Qiaolan, You Xiaoping
Food and Machinery
Objective:The paper aims to design a 3D icing sugar printer that meets the requirements of safety, hygiene, convenient operation, and stable structural performance. Methods:The 3D icing sugar printer includes the mechanical mechanism and control system. The mechanical structure adopts a gantry structure and reforms the food can. The control system adopts "Industrial PC + Motion control card" mode. Results:Fast food can replacement (＜ 30 s); fast printing speed (≥5 000 mm/min), adjustable speed; printing accuracy (＜1 mm); good strength, expansion rate and surface roughness of the printed objects. The image recognition and processing system with the self-light …
Development Of Single-Piece Ham Package Defect Recognition And Sorting System Based On Parallel Robot,
2022
Xinxiang Vocational and Technical College, Xinxiang, Henan 453006 , China
Development Of Single-Piece Ham Package Defect Recognition And Sorting System Based On Parallel Robot, Wang Yinming, Zhang Dan
Food and Machinery
Objective: Improve the sorting effect of single-piece ham package. Methods:Combined with automatic control, machine vision and other technologies, a sorting system capable of identifying single-chip ham defects was designed based on a Delta parallel robot. The kinematics and dynamics model of 2-DOF Delta parallel robot was established, and then the Delta parallel robot was optimized. The composition of control system and the algorithm of image processing were designed. Results: The system can successfully identify impurities and creases, with the recognition rate of up to 95%. It can also accurately and efficiently sort single-piece ham package, with the …
Research Status And Prospect Of Key Technologies For Automatic Production Of Fresh And Wet Rice Flour,
2022
Electronic Engineering College, Guangxi Normal University, Guilin, Guangxi 541004 , China ；Teachers College for Vocational and Technical Education, Guangxi Normal University, Guilin, Guangxi 541004 , China
Research Status And Prospect Of Key Technologies For Automatic Production Of Fresh And Wet Rice Flour, Mou Xiangwei, Song Yongfu, Chen Lintao
Food and Machinery
Firstly, this paper expounds the research status at home and abroad of three key technologies in the production process of fresh and wet rice flour: efficient powder dispersion, accurate weighing and automatic packaging, and focuses on the key technical problems existing in the research and development of technology and mechanical equipment; Secondly, on the basis of summarizing the development level of existing technology and equipment, this paper further analyzes the main reasons for these problems. Finally, the development direction of three key technologies in the automatic production of fresh and wet rice flour is prospected from the aspects of production …
Optimization Of Recrystallization Process Of Flavonoids From Guanxi Pomelo,
2022
College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021 , China ；Key Laboratory of Food Microbiology and Enzyme Engineering Technology of Fujian Province, Xiamen, Fujian 361021 , China ；Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian 361021 , China
Optimization Of Recrystallization Process Of Flavonoids From Guanxi Pomelo, Hu Yang, Zheng Liyan, Yang Yuanfan, Wu Jinhui, Ni Hui
Food and Machinery
Objective:This study aimed to improve the recrystallization yield and purity of flavonoid.Methods:Taking the crude flavonoids from pomelo peel extracted by ultrasonic-assisted ethanol extraction as raw materials, the process parameters of ethanol recrystallization and purification of flavonoids were optimized by response surface methodology.Results:The main factors affecting the recrystallization yield of flavonoids were ethanol concentration, crystallization time, pH value, and the interaction between ethanol concentration and pH value, among which, the ethanol concentration affacted most significantly.Conclusion: The optimal recrystallization conditions of flavonoids were as follows: ethanol volume fraction of 24%, liquid-solid ratio of 10∶1 (mL/g), …
Study On Extraction And Pyrolysis Analysis Of Newphytodiene In Tobacco Leaves,
2022
China Tobacco Guangxi Industrial Co., Ltd., Nanning, Guangxi 530000 , China
Study On Extraction And Pyrolysis Analysis Of Newphytodiene In Tobacco Leaves, Hu Chao, Zhang Dingjie, Hu Zhizhong, Song Lingyong, Li Zhihua, Wu Wentao, Zhang Junsong
Food and Machinery
Objective:In order to clarify the heat release behavior of neophytadiene under different conditions.Methods:Use Soxhlet extraction method, chromatography column method to extract and purify neophytadiene in tobacco powder, combined with IR, 1H NMR and MS spectrum technology, the structure was confirmed, and Py-GC/MS was used to analyze and study the pyrolysis products of neophytadiene under different conditions.Results:The performance of neophytadiene at different temperatures under anaerobic and aerobic conditions had good cracking thermal stability, and it can still maintain its original state at high temperature. The types of new phytadiene cracking products increased with the increasing …
Recent Studies On The Effect Of Ultrasonic Treatment On Food Allergens,
2022
College of Life Sciences, Shanghai University, Shanghai 200444 , China
Recent Studies On The Effect Of Ultrasonic Treatment On Food Allergens, Shu Erlian, Niu Bing, Chen Qin
Food and Machinery
Thisreview introduced the food allergens and their sensitization mechanism, and summarized the research progress of peanut, soybean, milk, shrimp, egg and kiwifruit allergens in ultrasound treatment. Moreover, the research direction of ultrasound treatment in reducing food sensitization was also prospected.
Research Status Of Modern Detection Technology In Automatic Liquor Picking Of Chinese Baijiu,
2022
College of Bioengineering, Sichuan University of Science & Engineering, Yibin, Sichuan 644000 , China
Research Status Of Modern Detection Technology In Automatic Liquor Picking Of Chinese Baijiu, Lin Hui, Zhang Suyi, Zhang Lian, Zhang Liqiang, Zheng Changning
Food and Machinery
This paper mainly summarized the research status of relevant detection technology in automatic liquor picking since the industrial revolution in China, and prospected its research and application. At the same time, the related research results of influencing liquor quality were summarized.
Research Progress On Nutritional Characteristics And Biological Activity Of Bactrian Camel Milk,
2022
Ausnutria Dairy 〔China〕 Co., Ltd., Changsha, Hunan 410127 , China ；Ausnutria Food and Nutrition Research Institute, Changsha, Hunan 410299 , China
Research Progress On Nutritional Characteristics And Biological Activity Of Bactrian Camel Milk, Zhang Min, Peng Xiaoyu, Gao Yu, Wang Jiaqi, Pan Lina
Food and Machinery
In this paper, the composition of protein, amino acids, fatty acids, minerals, vitamins and other nutrients in bactrian camel milk was discussed, and the research progress of the biological activities of camel milk and its enzymolysis products such as hypoglycemic, antibacterial, antiviral and antioxidant activities was summarized.
Effects Of Different Concentrations Of Free So2 And Dissolved Oxygen On Wine Color And Anthocyanins Content,
2022
College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, Xinjiang 830001 , China
Effects Of Different Concentrations Of Free So2 And Dissolved Oxygen On Wine Color And Anthocyanins Content, Peng Xin, Yang Xing-Yuan, Asat Ahtam, Yang Fan, Li Ze-Han, Li Han-Lun
Food and Machinery
Objective:This study aimed to explore the effects of different concentrations of dissolved oxygen and free SO2 on the color and related parameters of Cabernet Sauvignon dry red wine during aging, and to provide basic data for enterprises to improve the aging process of Cabernet Sauvignon dry red wine.Methods:Cabernet Sauvignon dry red wine from Xinpuwang Wineyard in Shanshan County, Turpan, Xinjiang was used as the brewing material. The effects of different concentrations of free SO2 and dissolved oxygen on wine color, hue and anthocyanin content were observed during wine aging.Results:The wine was bright red …
Determination Of Iodine In Milk Powder By Combing Microwave Digestion With Inductively Coupled Plasma Mass Spectrometry,
2022
Guangzhou Inspection Testing and Certification Group Co., Ltd., Guangzhou, Guangdong 510000 , China ；National Center for Quality Inspection of Processed Food, Guangzhou, Guangdong 510000 , China
Determination Of Iodine In Milk Powder By Combing Microwave Digestion With Inductively Coupled Plasma Mass Spectrometry, Zhu Jia-Jun, Li Liang, He Shuang, Chen Jing-Zhou
Food and Machinery
Objective:This study aimed to establish an efficient and accurate method for the determination of total iodine in milk powder by microwave digestion combining with inductively coupled plasma mass spectrometry (ICP-MS). Methods:Firstly, 0.2 mL of precipitant and 5 mL of ultrapure water were added for mixing and standing, and then 5 mL of nitric acid was added for microwave digestion. After cooling, the volume was fixed to 35 mL with ultrapure water, and then 10 mL of ammonia, 1 mL of stabilizer and 50 μL of TritonX-100 were added in sequence, avoiding the iodine loss. Results:The detection …
Visualization Of Lamb Adulteration Based On Hyperspectral Imaging For Non-Destructive Quantitative Detection,
2022
Jiangsu Dualix Spectral Imaging Technology Co., Ltd., Wuxi, Jiangsu 214000 , China
Visualization Of Lamb Adulteration Based On Hyperspectral Imaging For Non-Destructive Quantitative Detection, Zhao Jing-Yuan, Zhang Jun-Qin, Sun Mei, Chen Xing-Hai, Liu Ye-Lin
Food and Machinery
Objective: This study aimed to establisha rapid and accurate prediction method of lamb adulteration by using visible/near-infrared (400~1 000 nm) and short-wave near-infrared (900~1 700 nm) hyperspectral imaging techniques.Methods: The data acquisition of lamb adulterated with different proportions of duck meat using visible/near-infrared (400~1 000 nm) and short-wave near-infrared (900~1 700 nm) hyperspectral imagers was performed to compare the effect of partial least squares (PLS) modeling with different spectral preprocessing methods in the two band ranges. Then the normalized preprocessing method was selected in the visible-NIR band, and the standard normal variate transformation (SNV) preprocessing method was …
