Study On Preparation Of High Purity 1,3-Diglyceride From Yanhuang Beef Tallow,
2022
College of Agriculture, Yanbian University, Yanji, Jilin 133002 , China
Study On Preparation Of High Purity 1,3-Diglyceride From Yanhuang Beef Tallow, Qu Ke-Xin, Gao Qing-Shan, Yao Hui-Yao, Liu Long-Long, Zhang Hua, Li Xuan-Jun
Food and Machinery
Objective:This study aimed to increase the added value of Yanbian yellow cattle fat.Methods:Using immobilized lipase Lipozyme RM IM as a catalyst, and tallow fatty acid ethyl ester (self-made by ethanol hydrolysis) and glycerol as raw materials to prepare 1,3-diglyceride, using nuclear magnetic resonance to investigate the effect of lipase addition, substrate molar ratio, reaction time and reaction temperature on the content of 1,3-diglyceride in the crude reaction mixture. The changes in fatty acid composition of the tallow and diglyceride products was clarified before and after the alcoholysis and transesterification.Results:The best conditions for the synthesis of …
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.
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value,
2022
College of Food Science, Southwest University, Chongqing 400000 , China
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value, Xia Rui, Zhong Geng, Li Tian, Yang Wang-Fu, Gao Yu-Ge
Food and Machinery
Objective:Alkaline electrolyzed water (AEW) produced by drinking water electrolysis with three different negative REDOX potential values was used to study its physical and chemical properties, antioxidant and gastric acid relieving capacity.Methods:The pH value, oxidation-reduction potential (ORP), total dissolved solids (TDS) and mineral content of AEW were determined, and the free radical scavenging rate and anti-lipid peroxidation ability of AEW were studied by spectrophotometry. The acid capacity of different water samples in vitro was studied by artificial gastric model.Results:The negative ORP value of AEW is positively correlated with the pH value (P＜0.01). The scavenging …
Dynamic Changes Of Volatile Organic Compounds In Giant Salamander Liver During The Deodorization With Tea Water Extract,
2022
School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001 , China ；Key Laboratory of Bio-Resources of Shaanxi Province, Hanzhong, Shaanxi 723001 , China
Dynamic Changes Of Volatile Organic Compounds In Giant Salamander Liver During The Deodorization With Tea Water Extract, Liu Jun-Xia, Zhao Ping, Wan Xiao-Hui, Bie Ling-Ling, Jin Wen-Gang
Food and Machinery
Objective: This study aimed to investigate the effect of tea water extract on liver deodorization of giant salamander. Methods: The changes of volatile components in liver of giant salamander treated with tea water extract for 0, 5, 10, 15 and 20 min, were analyzed by gas chromatography-ion mobility chromatography (GC-IMS) combined with sensory odor value. Principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were performed on volatile compounds. Results: Compared with the control group, the fishy smell value of the liver of the giant salamander was significantly decreased after the treatment with tea water extract for 5 …
Effects Of Different Reheating Treatments On The Quality Of Frozen Cooked Eriocheir Sisensis,
2022
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 , China ；Jiangsu Collaborative Innovation Center of Food Safety and Quality Control, Wuxi, Jiangsu 214122 , China
Effects Of Different Reheating Treatments On The Quality Of Frozen Cooked Eriocheir Sisensis, Sun Ying-Ying, Gao De-Mei, Xu Yan-Shun, Xia Wen-Shui
Food and Machinery
Objective:The effects of reheating methods on the quality of frozen cooked river crab were studied to provide a basis for the selection of reheating methods for frozen cooked crab. Methods:The crabs reheated with microwave and steaming without and with thawing were studied using reheating time, texture, flavor nucleotide, free amino acids and volatile flavor compounds. Results:The times of crabs reheated with steaming without thawing, steaming after thawing, microwave without thawing, and microwave after thawing to the center temperature of 75 ℃ were 720, 552, 173, 106 s, respectively. Compared with unthawed crabs, the reheated crab meat had …
Effects Of Fatty Acid Chain Length On Structure And Physicochemical Properties Of High Amylose Corn Starch-Lipid Complexes,
2022
National Engineering Research Center for Rice and By-Product Deep Processing, Central South University of Forestry and Technology, Changsha, Hunan 410004 , China
Effects Of Fatty Acid Chain Length On Structure And Physicochemical Properties Of High Amylose Corn Starch-Lipid Complexes, Jiang Jia-Ni, Xiang Gui-Yuan, Deng Jia-Yi, Han Wen-Fang, Zhou Meng-Zhou, Jiang Zhi-Rong, Xiao Hua-Xi, Lin Qin-Lu, Li Bo, Li Jiang-Tao
Food and Machinery
Objective: This study aimed to investigate the formation mechanism of starch-lipid complex. Methods: Using different fatty acids with carbon chain length of C12~C18 to complex with debranched / non-debranched high amylose corn starch, by measuring the thermal properties, crystalline structure and ordered structure of the complexes with differential scanning calorimetry, X-ray diffraction, and Fourier transform infrared spectrometer, the effects of fatty acid chain length and debranched/non-debranched high amylose corn starch on the structure and properties of starch-fatty acid complexes were explored. Results: The compound degree of debranched starch and fatty acid decreased with the increase of carbon chain length, and …
Analysis On The Difference Of Metabolites Of Naked Oats From Different Produced Areas,
2022
College of Food Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Analysis On The Difference Of Metabolites Of Naked Oats From Different Produced Areas, Dai An-Na, Zhang Li-Yuan, Min Guang-Liu, Yu Run-Zhong
Food and Machinery
Objective:Zhangjiakou naked oats in Hebei province (HZ) and Qiqihar naked oats in Heilongjiang province (HQ) were selected as the research objects. The metabolites and differential metabolites of naked oats of the same variety in different regions were explored.Methods:Metabolomics research methods were used as the basis. Methanol was used to extract polar metabolic components, with Bis(trimethylsilyl)trifluoroacetamide (BSTFA) selected for derivatization, and the metabolites were determined through GC-MS technology and the NIST database.Results:A total of 56 kinds of metabolites were detected, including various carbohydrates and a small amount of secondary metabolites, in which HZ accounted for 38 …
Nutrition Components And Active Substance Content And Antioxidant And Antibacterial Activity Of Acer Tegmentosum Maxim Bark,
2022
College of Agriculture, Yanbian University, Yanji, Jilin 133002 , China
Nutrition Components And Active Substance Content And Antioxidant And Antibacterial Activity Of Acer Tegmentosum Maxim Bark, Guo Yu-Yuan, Jin Tie-Yan, Zhang Zhi-Yong
Food and Machinery
Objective:This study aimed to enrich the source of natural antioxidants and antibacterial agents and explore the development potential of the biological activity of Aceraceae. Methods:The nutrition components ofAcer tegmentosum Maxim (AT) bark and the total phenols content and total flavonoid content of ethanol extract (ATEE) and water extract (ATWE) were measured, and the contents of salidroside and tyrosol were determined by HPLC. DPPH radical, ABTS cationic radical, hydroxyl radical scavenging ability and ferric reducing power of extracts were determined. The antibacterial activity was evaluated by measuring the minimal inhibitory concentration (MIC) againstStreptococcus mutans,Staphylococcus aureus andEscherichia coli. Results:The …
Intelligent Sorting Equipment And System Design Of Seafood,
2022
School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, Liaoning 116034 , China
Intelligent Sorting Equipment And System Design Of Seafood, Jin Zong-Yi, Tao Xue-Heng, Jin Yan, Feng Yi-Ran, Wang Hui-Hui, Zhang Xu
Food and Machinery
Objective:Aiming at the present situation of low efficiency, low accuracy and high cost in the sorting and processing of fishery industry in China, the intelligent sorting equipment and system of seafood based on robot was developed.Methods:Using the combination of intelligent robot and traditional machinery to develop a new mechanical structure to classify seafood, an intelligent recognition technology based on machine vision was used to classify seafood (the improved novel Faster R-CNN algorithm was adopted for seafood), and an equipment system that could automatically sort seafood intelligently, efficiently was constructed.Results:The improved novel Faster R-CNN algorithm has …
Dynamic Target Grasping Control Method Of Food Sorting Robot Based On Improved Particle Swarm Optimization,
2022
Anhui Science and Technology Trade School, Bengbu, Anhui 233080 , China
Dynamic Target Grasping Control Method Of Food Sorting Robot Based On Improved Particle Swarm Optimization, Wang Min, Jiang Jin-Wei, Cao Yan-Tao
Food and Machinery
Objective:To solve the problems of unstable grasping operation and low sorting efficiency of sorting robot in food production line.Methods:Based on the architecture of high-speed parallel food sorting robot, a multi-objective motion optimization strategy based on improved particle swarm optimization algorithm was proposed for the dynamic target grasping control method of food sorting robot. By coordinating the grasping sequence and sorting trajectory, the shortest path model was established. Establish the mechanism stability optimization model with the end acceleration, and optimized the target by improving the particle swarm optimization algorithm.Results:Through experimental verification, when the conveying speed was …
Study On Overall Construction Scheme Of Intelligent Kitchen System,
2022
Quartermaster Equipment Research Institute, Academy of Military Sciences PLA China, Beijing 100010 , China
Study On Overall Construction Scheme Of Intelligent Kitchen System, Wang Qiao, Liu Yong-Xin, Meng Jia
Food and Machinery
This paper located and planned the construction of the smart kitchen from the global and systematic levels, and put forward the overall functional framework of the construction of the smart kitchen system. Relying on the development status of existing kitchen equipment and from the aspects of basic selection principle, intelligent grade division and intelligent selection principle, the overall scheme of selection and upgrading of kitchen equipment was given in order to give full play to the functions of kitchen and effectively solve the pain points of traditional kitchen. Finally, the hot issues in the future development of intelligent kitchen system …
Design And Experiment Of Coconut Meat Digge,
2022
Mechanical and Electrical Engineering College, Hainan University, Haikou, Hainan 570228 , China
Design And Experiment Of Coconut Meat Digge, Zeng Wen-Zhang, Fan Jun-Qing, Zhang Bao-Zhen
Food and Machinery
Objective:To solve the problems of low automation level and low security of coconut meat digging machine in China.Methods:The coconut meat extraction device was designed by using several mutually fitting curved blade, electric push rod, compression spring, crank and rocker mechanism, pressure sensor and other mechanisms, and the automatic control system was designed according to the process of coconut meat digger, the coconut meat digger run stably.Results:The experimental device of coconut meat extraction can operate safely and stably, when the rotating motor speed was 130 r/min and the lifting motor speed was 150 r/min, and the …
Cigarette Stem Identification And Location Method Based On Improved Yolov3 Network,
2022
North China University of Water Resources and Electric Power, Zhengzhou, Henan 450011 , China
Cigarette Stem Identification And Location Method Based On Improved Yolov3 Network, Liu Xin-Yu, Hao Tong-Meng, Zhang Hong-Tao, Lu Xin-Yan
Food and Machinery
Objective:In order to realize the intelligent grasping of tobacco stem in tobacco grading process, prevent the manipulator in the intelligent tobacco grading system from damaging the leaf surface during grasping tobacco leaves, and reduce the manual operation in the production of intelligent tobacco grading equipment.Methods:An automatic tobacco stem identification and location model based on improved YOLOv3 convolution neural network was proposed for the identification and classification of single tobacco leaf and the storage of corresponding single tobacco leaf in tobacco grading system. The model changed the structure of the unit module and introduced the attention mechanism module …
Development Experience Of Italian Nutrinform Battery Labeling And Enlightenments,
2022
Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081 , China
Development Experience Of Italian Nutrinform Battery Labeling And Enlightenments, Huang Ze-Ying, Huang Jia-Zhang
Food and Machinery
This study summarized the content, characteristics and development experience of nutrinform battery labeling which launched in 2020 through the official website of Italian government, relevant reports and literatures. The labeling adopted the nutrient profile of specific nutrient system showing contents of energy, fat, saturated fatty acid, sugar, salt and their percentage of adultsʼ reference intakes (RIs) indicated with the battery content. As a voluntary labeling, nutrinform battery labeling which matched the Mediterranean diet pattern, popular in Italy. However, it is counterintuitive to be criticized as "Higher electricity lower nutritional quality" when applying for EU FOP labeling. The practical experience of …
Improvement Of Cigarette Package Steering Mechanism Of Yb25 Soft Packer,
2022
China Tobacco Hubei Industrial LLC, Wuhan, Hubei 430050 , China
Improvement Of Cigarette Package Steering Mechanism Of Yb25 Soft Packer, He Ren, Tian Sen, Tian Jing, Zhang Ning, He Sheng-Yue
Food and Machinery
Objective:In order to solve the problems of high failure rate of cigarette package steering mechanism of YB25 soft box packaging machine and easy to cause cigarette package damage, etc.Methods:Through the analysis of the wear of the parts of the cigarette package steering mechanism, the design defects of the mechanism were found. The three-point symmetric eccentric planetary gear train with more stable performance is designed, and the special clutch was improved to ensure its overload protection.Results:After the improvement, the failure rate of steering mechanism was reduced, with the single maintenance time 54 minutes reducing, the equipment …
Effects Of Flow Field Distribution On Freezing Characteristics Of Mashed Potatoes,
2022
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306 , China
Effects Of Flow Field Distribution On Freezing Characteristics Of Mashed Potatoes, Li Yao, Wan Jin-Qing, Wang You-Jun, Sun Xiao-Lin, Tong Nian
Food and Machinery
Objective:To understand the effects of changing the arrangement and position on the freezing characteristics of potato mash and the energy consumption of refrigeration equipment.Methods:Gambit was used to complete the establishment of the three-dimensional numerical model for the air blast freezing of mashed potato. At the same time, fluent 6.3 was used for unsteady state simulation, and Pr.c-15 pronton high-efficiency fresh-keeping refrigerator was used for the freezing test of mashed potato. In the test, the mashed potato was arranged in a row and fork row, and on this basis, the position of mashed potato was changed (rotated 180° …
Characterization, Rheological Study And Antioxidant Activities Of Polysaccharide From Azolla,
2022
Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083 , China
Characterization, Rheological Study And Antioxidant Activities Of Polysaccharide From Azolla, Yao Yue-Hua, Tang Ning, Ying Xi-Rui, Ying Chao-Yang, Cheng Yong-Qiang
Food and Machinery
Objective:The study aimed to research the characterization, rheological properties and antioxidant activities of polysaccharide from Azolla.Methods:The polysaccharide was obtained through hot water extraction. The molecular weight, monosaccharide composition, microstructure, rheological properties and antioxidant activities were analyzed by gel-permeation chromatography (GPC), FT-IR spectrometric, scanning electron microscopy (SEM) and so on.Results:The polysaccharide from Azolla containing two groups of molecular weight (2 338.00 and 1.60 kDa) was an acidic heteropolysaccharide, which was mainly composed of mannose, glucuronic acid, galactose, xylose and glucose. The sample had the typical absorption peaks of polysaccharide, which connection mode of heterocephalic carbon was …
Enzymatic Preparation And Activity Study Of Rice Bran Protein-Derived Ace Inhibitory Peptides,
2022
Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642 , China
Enzymatic Preparation And Activity Study Of Rice Bran Protein-Derived Ace Inhibitory Peptides, Zhang Ling-Yu, Miao Jian-Yin, Cao Yu, Dai Wei-Jie, Liu Guo, Li Zhen-Wei, Cao Yong
Food and Machinery
Objective:This study aimed to develop new rice bran products.Methods:The ACE inhibition rate was used as an indicator, and the rice bran protein was optimized by single factor and response surface experiments. The optimal enzyme hydrolysate peptides were separated by ultrafiltration, activity evaluation and amino acid composition analysis were performed.Results:The optimal process conditions were as follows: pH 7.2, mass substrate concentration 8.2 g/100 mL, enzymolysis at 46 ℃ for 3 h, and enzyme addition 0.3 g/100 g rice bran protein. Under the control of these conditions, the ACE inhibition rate of the enzymatic hydrolysate was (73.15±0.64)%, …
