Determination Of 4 Categories Of Flavor Substances In Liquor By Gas Chromatography Mass Spectrometry,
2022
Wuxi Center for Disease Control and Prevention, Wuxi, Jiangsu 214023 , China
Determination Of 4 Categories Of Flavor Substances In Liquor By Gas Chromatography Mass Spectrometry, Xu Zhi-Fei, Wu Yu-Kang, Jiang Yu-Hong, Zhou Run
Food and Machinery
Objective: To establish an analytical method for the determination of four main flavor substances in liquor. Methods: A gas chromatography mass spectrometry (GC-MS) method was established for the simultaneous determination of esters, alcohols, acids, and aldehydes in liquor. Single ion monitoring (SIM) mode was chosen. Then the method was inspected through comparison with the standard mass spectrum database, quantitative analysis of the external standard method and relative standard deviation of day-in and day-out were investigated. Results: The limits of detection of the four types of flavor compounds in liquor were 0.007~0.070 mg/L, and the limits of quantitation …
Research On The Application Of Big Data In Food Safety Supervision Risk Early Warning,
2022
Information Center of the State Administration for Market Regulation, Beijing 100820 , China
Research On The Application Of Big Data In Food Safety Supervision Risk Early Warning, Du Lin, Wen Sheng-Jun, Yuan Gang
Food and Machinery
As an important part of modern food safety governance system, food safety risk early warning fully embodies the scientific principle of "prevention first, risk management, whole process control and social co governance". This paper focuses on how to use effective data collection and data analysis strategies to achieve food safety risk early warning through monitoring, analysis, evaluation and other ways, so as to support government supervision with a more scientific and accurate food risk data management and evaluation system.
Construction Of Embedded Governance Model Of Food Safety Risk In China,
2022
Marxism School of Hebi Polytechnic, Hebi, Henan 458030 , China
Construction Of Embedded Governance Model Of Food Safety Risk In China, Cai Shi-Qin
Food and Machinery
As an innovative research method, embedded governance not only pays attention to the impact of institutional factors on organizational change, but also pays more attention to the importance of economic, political, social and other factors in organizational development. The review summarized the practical problems of "decoupling" between the governance subject, governance mechanism, governance means and governance objectives in Chinese food safety risk, such as the unidirectional governance subject, the decoupling of governance means, and the hysteresis of governance mechanism. It is pointed out that the embedded management of food safety risks in China can be realized and the new model …
Study On Optimization Of Motion Parameters Of Catfish Headless Processing Device Based On Fem,
2022
College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384 , China
Study On Optimization Of Motion Parameters Of Catfish Headless Processing Device Based On Fem, Li Chen-Yang, Shan Hui-Yong, Zhang Cheng-Hao, Tian Yun-Chen, Wei Yong
Food and Machinery
Objective: Improve the mechanization and automation of the pretreatment process of China’s freshwater fish processing industry. Methods: The catfish head cutting simulation model is constructed by the numerical analysis software ANSYS/LS-DYNA, and the catfish head removal process is simulated and analyzed and the motion parameters are optimized by FEM. The blade speed and transportation speed are adjusted with the minimum cutting power consumption as the optimization goal, and the accuracy of the simulation results is verified by the prototype test. Results: When the speed of the blade is 850 r/min and the conveying speed is 14 cm/s, …
Online Visual Detection Method Of Defective Baoyu-Flavor-Slices Based On Mechanical Vision,
2022
College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222 , China
Online Visual Detection Method Of Defective Baoyu-Flavor-Slices Based On Mechanical Vision, Xiang Yu-Hang, Zhou Cong-Ling, Wang Yong-Qiang
Food and Machinery
Objective: To solve the problem of appearance defects of Baoyu-flavor-slices, such as edge damage, internal porosity and uneven wrapper thickness in the production process. Methods: An on-line detection method based on machine vision was proposed. The Baoyu-Flavor-Slices were arranged into a single layer array by mechanical carding device. After image acquisition, image segmentation, gray value stretching and contour edge extraction were selected for image processing. Edge damage detection was completed by using the feature of outer contour roundness, abnormal wrapper thickness detection was accomplished by measuring wrapper thickness, by calculating the porosity area, the porosity detection was completed. …
Research On Mill Distance Monitoring System Based On Machine Vision,
2022
School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, Henan 450001 , China
Research On Mill Distance Monitoring System Based On Machine Vision, Lu Shao-Jie, Wu Wen-Bin, Zhang Wen-Long, Hou Ning-Pei, Liu Pei-Kang, Zhao Qi-Feng
Food and Machinery
Objective: Real-time monitoring of the grinding roller distance of the pulverizer. Methods: CCD industrial camera was used to collect the rolling distance image, threshold segmentation and morphology were used to preprocess the gray image, and then the edge detection algorithm combined with MATLAB software and mathematical operation were used to eliminate the irrelevant edge points, and finally the rolling distance of the mill was calculated. The feasibility and veracity of the system were verified by comparing the value of gauge and the value of system monitoring. Results: The data fluctuation range of the online monitoring system was …
Detection Of Defective Shrimp And Optimization For Key Parameters In Multi-Channel Automatic Elimination System,
2022
Jiaxing College, Jiaxing, Zhejiang 314000 , China
Detection Of Defective Shrimp And Optimization For Key Parameters In Multi-Channel Automatic Elimination System, Zeng Ling-Xiao, Liu Zi-Hao, Yan Zhi-Peng, Zhao Kun, Liu Hao
Food and Machinery
Objective: When inspecting the appearance and quality of Litopenaeus Vannamei, the system can realize the automatic elimination of defective shrimps efficiently. Methods: Constructed an automatic shrimp elimination equipment and quality inspection. Structured an algorithm to extract shrimps’ morphological feature, complete the clarification of normal and defective shrimps. Realizing defective shrimps’ elimination by blowing them from the side to middle. Through the analysis of internal stress of shrimp, we calculated the correlation between blowing volume and moving distance. Moreover, the relationships among gass output volume, shrimps’ moving distance and speed had been optimized. Results: With the increasing of …
Real-Time Classification Method For Liquor Hops Based On Deep Learning,
2022
Computer Department, North China Electric Power University, Baoding, Hebei 071003 , China
Real-Time Classification Method For Liquor Hops Based On Deep Learning, Liu Zhi-Ping, Cui Ke-Bin
Food and Machinery
Objective: To solve the subjectivity and instability of the traditional Baijiu picking method " liquor-receiving according to liquor hop", and the problem that the existing machine vision hops classification method is difficult to meet the real-time classification. Methods: The lightweight YOLOv5 takes YOLOv5s as the initial model, uses the K-mean clustering anchor box to replace the default anchor box to improve the model detection accuracy and stability, uses the shufflenetv2 network to replace the YOLOv5s backbone network for feature extraction, so as to achieve the purpose of lightweight model, and adds the CBAM attention mechanism to make the …
Efficientnet Edible Fungus Image Recognition Based On Improved Weight Decay,
2022
College of Computer and Information Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052 , China
Efficientnet Edible Fungus Image Recognition Based On Improved Weight Decay, Yao Zhi-Xin, Zhang Tai-Hong, Zhao Yun-Jie
Food and Machinery
Objective: In order to solve the problem of edible fungus species identification, an EfficientNet edible fungus image classification model based on convolution neural network is proposed. Methods: Firstly, the edible fungus images were collected and the datasets were made according to different equipment and shooting environment, and then the model performance was improved through model training skills and network skills. A YWeight weight attenuation method was proposed to control the effective learning rate, and the generalization performance of the model was affected by controlling the cross-boundary. Results: This method makes EfficientNet-B0 obtain 79.82% (+0.85%) top-1 accuracy on …
Storage Stability Of Bilayer Indicator Films Containing Anthocyanin,
2022
School of Food Engineering, Henan Vocational College of Agriculture, Zhengzhou, Henan 451450 , China
Storage Stability Of Bilayer Indicator Films Containing Anthocyanin, Wang Wen-Yan, Zhou Xi, Wei Zhen, Yu Xi-Zheng, Xiong Guo-Yuan
Food and Machinery
Objective: This study aimed to investigate the best storage conditions for anthocyanin indicator films. Methods: The double-layer indicator films containing anthocyanins were investigated. The mechanical properties (tensile strength and elongation at break), thickness, color and antioxidant properties (DPPH free radical scavenging ability, total phenol content and ABTS free radical scavenging ability) of double-layer indicator films containing anthocyanins were determined at different storage time (0, 7, 14, 21, 28 and 35 d) and temperature (25, 4 and 18 ℃). Results: The results showed that the thickness of the indicator films was generally maintained at about 0.15 mm, and …
Application Of Information Visualization Technology In Tea Packaging Design,
2022
School of Art and Design, Changsha University of Seience & Technology, Changsha, Hunan 400114 , China
Application Of Information Visualization Technology In Tea Packaging Design, Xie Qi, Qin Yu-Yang
Food and Machinery
With functional information of tea as the starting point, information visualization as the means and tea packaging as the medium, benefiting from the visual communication between tea and consumers realized by the joint forces of the three, this paper discusses the principles and methods of information visualization in tea packaging design, and transmits the relevant information of tea to consumers easily, quickly and effectively to achieve the purpose of promotion.
Storage Endurance Evaluation Of 'Jinxiu' Yellow Peach With Different Sugar Content Based On Nmr And 1h-Mri Techniques,
2022
Forest and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403 ,China ；Agro-product Fresh Keeping and Processing Research Center, Shanghai 201403 , China
Storage Endurance Evaluation Of 'Jinxiu' Yellow Peach With Different Sugar Content Based On Nmr And 1h-Mri Techniques, Zhou Hui-Juan, Ye Zheng-Wen, Zhang Zhi-Qiang, Du Ji-Hong, Zeng Si-Yi
Food and Machinery
Objective: To evaluate the storability of yellow peach with different sugar content. Methods: The respiration intensity, ethylene release rate, soluble solid content and texture of the fruit stored at 0, 14, 21, 28, 35, (35+3) d were measured. Nuclear Magnetic Resonance (NMR) technique and proton magnetic resonance imaging (1H-MRI) were used to determine the content of free water (A2) and relaxation time (T2) to observe the changes of fruit stored at (2±0.5) ℃. Results: During storage and shelf, the decrease rate of firmness of pulp, flesh compactedness and chewiness was faster in low-sugar group, especially at the …
Automatic Classification Of Banana Ripeness Based On Deep Learning,
2022
Guilin University of Technology at Nannning, Nanning, Guangxi 530001 , China
Automatic Classification Of Banana Ripeness Based On Deep Learning, Wang Ling-Min, Jiang Yu
Food and Machinery
Objective: To classify banana ripeness quickly and accurately. Methods: Collect the bananas images of different maturity and establish gallery, using a variety of different neural networks as a classifier, banana feature extracting by migration study classifying banana six maturity level, access to the most suitable for banana maturity classification network model, network model, based on the improved and easily banana maturity real-time detection interface design, Finally, the feasibility and practicability of the model were verified. Results: AlexNet model was most suitable for banana maturity classification with the highest accuracy of 95.56%. AlexNet model was improved by modifying …
An Improved Automatic Detection Model For Egg Defection Based On Yolov5,
2022
Shenyang Vocational and Technical College, Shenyang, Liaoning 110045 , China
An Improved Automatic Detection Model For Egg Defection Based On Yolov5, Yao Xue-Feng, Li Chao
Food and Machinery
Objective: To solve the problems of low detection efficiency and poor accuracy of existing automatic detection methods for egg defect images. Methods: Based on the egg detection system, an improved YOLOv5 automatic detection model was proposed. Added the lightweight network MobileNetv3 to YOLOv5 model to reduce the complexity of the model, and deleted the neck network and small target detection at the output end. Results: Compared with the traditional control method, this method can detect the surface defects of egg targets more accurately and efficiently, with the complexity of more than 35% reducing, the detection time of …
Effect Of Irradiation On Active Components Of Rhodiola Rosea Extracts And Their Hypoglycemic Ability,
2022
Agricultural College of Yanbian University, Yanji, Jilin 133002 , China
Effect Of Irradiation On Active Components Of Rhodiola Rosea Extracts And Their Hypoglycemic Ability, Qu Meng, Chang Yan-Qiu, Qi Xin, Cui Cheng-Bi
Food and Machinery
Objective: This study aimed to study the changes of active components in irradiated Rhodiola rosea extracts (RRE) and their hypoglycemic effect. Methods: Rhodiola rosea was irradiated with 60Co-γ rays at doses of 5, 10, 20 and 30 kGy, respectively. High performance liquid chromatography (HPLC) was used to analyze RRE compounds before (0 kGy) and after irradiation. The type 1 diabetic mouse models established by intraperitoneal injection of Streptozotocin (STZ) were given a gavage. The body weight, fasting blood glucose, food intake and water intake of mice were measured regularly. Oral glucose tolerance was measured on the last day, …
Extraction Process, Structural Characteristics And Biological Activity Of Mesona Chinensis Polysaccharide,
2022
College of Life Sciences and Technology, Lingnan Normal University, Zhanjiang,Guangdong 524048 , China ；School of Mechanical and Electrical Engineering,Xinjiang Agricultural University, Urumqi, Xinjiang 830052 , China
Extraction Process, Structural Characteristics And Biological Activity Of Mesona Chinensis Polysaccharide, Dong Wei, Ma Sheng-Jian, Guo Jun-Xian, Luo Hao, Tao Mei-Hua
Food and Machinery
Objective: This study focused on improving the extraction rate and application of Mesona chinensis polysaccharide (MCP). Methods: MCP was obtained from fresh M. chinensis by thermally alkaline extraction, protein removal by trichloroacetic acid and purification by dialysis bag. The chemical structure was analyzed by ultraviolet and infrared spectrum scanning, X-ray diffraction and SEM scanning. The antioxidant activity was determined by in vitro antioxidant capacity, and the antibacterial activity was determined by antibacterial experiment. Results: The optimal extraction conditions of MCP were solid-liquid ratio of 1∶5.47 (g/mL), soaking time of 10.71 min, sodium bicarbonate concentration of 1.64%. Under …
Analysis Of Protein Extraction And Antioxidant Activity Of Enzymatic Hydrolysates From Scallop Processing By-Products,
2022
School of Food Science and Bioengineering, Changsha University of Science & Technology,Changsha, Hunan 410000 , China ；College of Life Science, University of Chinese Academy ofSciences, Beijing 101408 , China
Analysis Of Protein Extraction And Antioxidant Activity Of Enzymatic Hydrolysates From Scallop Processing By-Products, Guo Yu, Wen Shi-Yu, Ni Ce, Ou Xiao-Hui, Qu Ting-Min, Wu Ying, He Shu-Wen, Li Hong-Hui, Cui Bo, Cheng Yun-Hui, Wen Li
Food and Machinery
Objective: This study aimed to improve the utilization value of scallop processing by-products, by analyzing the antioxidant activity of its protein hydrolysates. Methods: The processing by-products of Argopecten irradians were used as raw materials, and the proteins were extracted by alkali extraction and acid precipitation, alkali extraction and ammonium sulfate precipitation and low temperature ethanol denaturation precipitation. Then the proteins were analyzed by SDS-PAGE. Pepsin, flavourzyme, dispase and alcalase were used to hydrolyze the protein, and the antioxidant activities of the hydrolysate products were analyzed. The molecular weight distribution, amino acid composition and hydroxyproline content of dispase hydrolysates …
Effect Of Spray Drying On The Functional Properties Of Egg Yolk Powder,
2022
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Effect Of Spray Drying On The Functional Properties Of Egg Yolk Powder, Ang Yuan, Duan Xu, Cao Wei-Wei, Ren Guang-Yue, Wang Zhe, Li Lin-Lin
Food and Machinery
Objective: This study aimed to develop the application of egg yolk powder in the field of feed, functional food and biopharmaceuticals. Methods: Using fresh eggs as raw materials, yolk powder was prepared by spray drying, and the effects of different parameters on the content of yolk antibody (IgY), protein structure and functional properties of egg yolk powder were analyzed. Results: Considering the antibody content, physicochemical properties and functional properties of egg yolk powder comprehensively, when the inlet air temperature was 140 ℃ and the feed flow rate was 600 mL/h, the IgY content of egg yolk powder …
Preparation And Application Of Maillard Reaction Flavors Based On Cigar Tobacco Leaf Residues,
2022
Zhengzhou Tobacco Research of CNTC, Zhengzhou, Henan 450001 , China
Preparation And Application Of Maillard Reaction Flavors Based On Cigar Tobacco Leaf Residues, Xu Xiu-Juan, Wang Ai-Xia, Hu Shao-Dong, Shi Qing-Zhao, Yang Chun-Qiang, Ma Ji
Food and Machinery
Objective: To solve the problem of tobacco leaf residues produced during the production of tobacco extracts. Methods: Maillard reaction was carried out using aqueous extracts from cigar tobacco leaf residues as raw materials, and the effects of amino acid dosage and reaction time on the chemical composition of the Maillard reaction products and the sensory quality of cigarettes were systematically investigated. The relationship between the 18 components of the Maillard reaction product and the sensory index of cigarettes was also investigated. Results: ① Based on sensory effects, the optimal reaction conditions for the Maillard reaction based on …
Progress In The Analysis And Detection Of Steroidal Hormones In Royal Jelly,
2022
Changchun University of Chinese Medicine, Changchun, Jilin 130000 , China
Progress In The Analysis And Detection Of Steroidal Hormones In Royal Jelly, Li Zheng, Yang Jing, Jiao Li-Li, Li Hui, Wu Wei
Food and Machinery
The rapid determination of steroidal hormones and their contents in royal jelly by molecular imprinting and high performance liquid chromatography-mass spectrometry (HPLC-MS) was reviewed. The research progress of liquid-liquid extraction, solid phase extraction, QuECHERS and other pretreatment methods, as well as HPLC-MS, gas chromatography-mass spectrometry (GC-MS), radioimmunoassay and enzyme-linked immunosorbent assay were introduced. The advantages and disadvantages of various pretreatment methods and analytical methods were analyzed and compared. Finally, the feasibility of using molecular imprinting technology and HPLC-MS to detect steroid hormones in royal jelly was prospected.
