Effects Of Static Deposition Method And Koh Treatment Of Zeolite On Separation Of Wheat Gliadin,
2021
School of Science, Tianjin University of Commerce, Tianjin 300134, China
Effects Of Static Deposition Method And Koh Treatment Of Zeolite On Separation Of Wheat Gliadin, Wang Dan-Li, Liu Lu, Zhang Yi-Fan, Lian Xi-Jun
Food and Machinery
Objective: To study the technology of extracting gliadin from gluten and separating different gliadin components. Methods: The solution of gluten dissolved in 65% ethanol was settled at 4, 10, 20 and 30 ℃ for 1, 2, 4, 8, 10, 20 and 40 hours respectively, and the mass of the precipitated gliadin was measured. Further, the gliadin prepared by static deposition at 4 ℃ for 12 hours was used as raw material to study the separation of gliadin component by modified zeolite with KOH in different conditions. The zeolite was modified in three different mass fractions （20%, 50% and 80%）, three …
Study On Preparation Technology And Properties Of Dietary Fiber Ultrafine Powders From Okra Fermented Wine Pomace,
2021
College of Food and Biological Engineering, Jimei University, Xiamen, Fujian 361000, China
Study On Preparation Technology And Properties Of Dietary Fiber Ultrafine Powders From Okra Fermented Wine Pomace, Luo Xin, Zhou Yan-Qiang, Wu Guang-Bin, Chen Fa-He
Food and Machinery
Objective: This study aimed to effectively utilize a large amount of dietary fiber andpectic polysaccharides in okra fermented wine pomace and turn waste into treasure. Methods: The processing technology and related characteristics of okra dietary fiber ultrafine powder were studied by wet ultrafine grinding and spray drying technology. Results: The results showed that okra fermented wine pomace was treated by colloid mill three times; then homogenized by high-pressure homogenizer for three times with 40 MPa of the homogenization pressure; after homogenization, spray drying was made with 210 ℃ in the inlet air temperature, 40 Hz of the fan frequency, solids …
Research Progress On Wall-Breaking Technology Of Rape Bee Pollen,
2021
Department of Food and Drug Engineering, College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha, Hunan 410208, China; Hunan Province Engineering Research Center of Bioactive Substance Discovery of Traditional Chinese Medicine, Changsha, Hunan 410208, China
Research Progress On Wall-Breaking Technology Of Rape Bee Pollen, Zheng Hui, Yang Si-Qi, Sun Yan, Li Shun-Xiang
Food and Machinery
This paper summarized the cell structure, wall breaking morphology and wall-breaking methods of rape bee pollen, analyzed and compared the advantages and disadvantages of various wall-breaking methods, summarized the application and development status of wall breaking rape bee pollen, and prospected the research on wall-breaking technology of rape bee pollen in the later stage.
Application Of Magnetic Covalent Organic Frameworks In Food Safety Analysis,
2021
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350000, China
Application Of Magnetic Covalent Organic Frameworks In Food Safety Analysis, Yang Da-Yu, Chen Zi-Ying, Pang Jie, Yan Zhi-Ming
Food and Machinery
In this paper, the application of magnetic covalent organic frameworks （MCOFs） in food safety analysis is reviewed by combining with the domestic and foreign literature, and the common preparation methods of MCOFs are briefly introduced. The application examples of MCOFs in pesticide residues, veterinary drug residues, organic pollutants, toxins and harmful substances in packaging were discussed, and the practical detection application of MCOFS in the future is prospected.
Rapid Determination Simultaneously Of Twelve Kinds Of Nitrophenolic Compounds In Water By Modified Quechers-Gc-Ms,
2021
Gansu Zhongshang Food Quality Test and Detection Co., Ltd., Lanzhou, Gansu 730010, China;Gansu Business Science and Techology Institute Co., Ltd., Lanzhou, Gansu 730010, China
Rapid Determination Simultaneously Of Twelve Kinds Of Nitrophenolic Compounds In Water By Modified Quechers-Gc-Ms, Wu Jian-Qiang, Zhao Zhong-Jing, Hong Xia, He Hai-Ning, Yuan Cai-Xia
Food and Machinery
Objective: A simple, efficient, rapid, sensitive, reproducible, accurate and rapid method was established for the simultaneous determination of 12 nitrophenols in water. Methods: Magnetic Fe3O4 nanoparticles loaded with bifunctional octadecylamine functionalized carbon nanotube composites were synthesized by coprecipitation and hydrothermal methods. The sample pretreatment method of QuEChERS was optimized and combined with gas chromatography-mass spectrometry to establish a method for the simultaneous determination of 12 kinds of nitrophenols in water quality. Results: The optimized QuEChERS sample pretreatment method gave the advantages of magnetic nanoparticles and carbon nano materials. Under the control of these conditions, high efficiency of …
Rapid Determination Of Seven Inorganic Anions In Water By High Pressure Ion Chromatography,
2021
Guangzhou Inspection and Certification Group Co., Ltd., Guangzhou, Guangdong 510000, China;National Centre for Quality Inspection of Processed Food, Guangzhou， Guangdong 510000, China
Rapid Determination Of Seven Inorganic Anions In Water By High Pressure Ion Chromatography, Li Qian-Ying, Huang Shao-Man, Chen Jing-Zhou, Liang Zhi-Sen
Food and Machinery
Objective: To establish a method for the rapid determination of seven kinds of inorganic anions in water by high pressure ion chromatography（HPIC）, including fluoride ion, chloride ion, bromide ion, nitrate ion, sulfate ion, chlorite ion and chlorate ion. Methods: Dionex Integrion high pressure ion chromatography and Ionpac AS19 analytical column were used. Under the conditions of KOH eluent concentration of 20 mmol/L and flow rate of 2.00 mL/min, the content of seven inorganic anions in water was determined by inhibition conductivity detector. Results: The results showed that seven kinds of inorganic anions could be separated within 7 min. The linear …
Design Of Moisture-Content Detecting System For The Dried Powders Of The Fruits And Vegetables,
2021
Department of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
Design Of Moisture-Content Detecting System For The Dried Powders Of The Fruits And Vegetables, Zhao Yong, Wu Xu-Yao, Huang Wen-Ying, Xu Hui-Li, Wu Zhong-Hua
Food and Machinery
Objective: In order to meet the demand of low water-content fruit-vegetable powder online detection, a new detection system was established. Methods: Based on the microwave transmission principle, an online moisture detection system of fruit-vegetable powder was designed. The system was divided into a feed module, a detection module, a discharge module and control display module, and the corresponding hardware and software design. Carrot powders were used as the test material, and a third-party testing institution compared the two methods, including water-content microwave transmission and national standard testing, to evaluate the test performance of the device. Results: The moisture content of …
Dual Real-Time Fluorescence Quantitative Pcr Method For The Detection Of Orange And Citrus Components In Orange Juices,
2021
Guangdong Provincial Institute of Food Inspection, Guangzhou, Guangdong 510000, China
Dual Real-Time Fluorescence Quantitative Pcr Method For The Detection Of Orange And Citrus Components In Orange Juices, Chen Yin-Yin, Li Juan, Zhou Lu, Chen Dan-Xia, Han Zhi-Jie, Ding Qing-Long
Food and Machinery
Objective: To establish a dual real-time PCR method for the detection of orange and citrus components in orange juices. Methods: Through the design and screening of primers and probes for orange and citrus components. Through the detection of fruits, found the rule of fluorescence amplification of orange and citrus. Using the ratio difference of orange and citrus in FAM/VIC two fluorescence channels to determine the composition of orange and citrus. The lowest doping ratio detected by the method was verified by the experiment of orange juice adulteration, tested the commercial orange juice and verify the feasibility of the method. Results: …
Solid-Phase Extraction And Accurate Analysis On Food Additives In Marinated Meat Products,
2021
Department of Food and Biological Engineering, Yantai University of Technology, Yantai, Shandong 264005, China
Solid-Phase Extraction And Accurate Analysis On Food Additives In Marinated Meat Products, Wang Xiao-Jun, Li Feng-Ling
Food and Machinery
Objective: To establish an accurate method for the determination of benzoic acid, sorbic acid and saccharin sodium in soy sauce brine meat products. Methods: The samples were extracted by ethyl acetate, SPE-MCX solid phase extraction, and detected by HPLC simultaneously. Results: The determination was performed on Agilent Zorbax Eclipse XDB-C18 column （250 mm×4.6 mm, 5 μm） with mobile phase consisting of 75% 0.02 mol/L ammonium acetate solution and 25% acetonitrile. The column temperature was set at 25 ℃, and the flow rate was 0.8 mL/min. The sample size was 10 μL. The detection wavelength was 230 nm. In the range …
Dynamic Simulation Analysis Of Double-Shaft Paddle Type Food Mixer Based On Dem,
2021
Chengxian College, Southeast University, Nanjing, Jiangsu 210088, China
Dynamic Simulation Analysis Of Double-Shaft Paddle Type Food Mixer Based On Dem, Xu Yu-Jing
Food and Machinery
Objective: In order to analyze the movement and mixing characteristics of food powder particles in the double-shaft paddle mixer to optimize the verification of the mixer structure. Methods: The EDEM software was used to simulate the proportional mixing of three different sizes of food powder particles, and then Bin Groups would build a mixing box to observe the mixing situation, and evaluate it by studying the number of particles between different types of food powder. Results: At t=5 s, there was still a certain gap in the number of particles in the squares corresponding to the three types of powdered …
Modeling And Analysis Of Static And Dynamic Characteristics Of Three Degrees Of Freedom Parallel Packaging Mechanism,
2021
School of Mechanical and Electrical Engineering, North China Institute of Aerospace Engineering, Langfang, Hebei 065000, China
Modeling And Analysis Of Static And Dynamic Characteristics Of Three Degrees Of Freedom Parallel Packaging Mechanism, Dong Xu, Gao Tie-Hong
Food and Machinery
Objective: Aiming at a three degree of freedom HUU type parallel mechanism which can be used in food packaging，the static and dynamic characteristics are studied. Methods: The geometric model of the parallel mechanism was firstly established, and the static and dynamic stiffness of the mechanism were analyzed and calculated; then the dynamic equation of the mechanism was established based on Lagrange method. The dynamic analysis of the connecting rod was carried out as a pure rigid body, and then the rigid flexible coupling dynamic analysis was carried out by making the branch chain connecting rod flexible. Results: The static stiffness …
Effect Of Chlorine Dioxide Concentration On Storage Quality Of Cuihong Plum,
2021
Guiyang College, Guiyang, Guizhou 550005, China
Effect Of Chlorine Dioxide Concentration On Storage Quality Of Cuihong Plum, Zhao Zhi-Bing, Liu Yong-Ling, Li Ying, Ba Liang-Jie, Luo Dong-Lan
Food and Machinery
Objective: This study aimed to exploring the fresh-keeping effect of chlorine dioxide onCuihong plum, and then providing a new way for postharvest fresh-keeping technology of Prunus. Methods: Cuihong plum fruits were treated with different concentrations of chlorine dioxide (20, 40, 60 mg/L) and then refrigerated at (1.0±0.5) ℃. Results: Compared with the control group, the group treated with 40 mg/L chlorine dioxide significantly reduced the decay rate, respiratory intensity, polyphenol oxidase activity (P<0.05), and inhibited the color difference L* value, hardness, soluble solids content, titratable acid content, VC content, peroxidase activity, the total number of mold and yeast colonies of Prunus (P<0.05). Conclusion: Treatment with 40 mg/L chlorine dioxide has the best storage effect, which can delay the metabolic process of Cuihong plum and maintain good storage quality.
Research On Jujube Defect Recognition Method Based On Improved Convolution Neural Network,
2021
Geely University of China, Chengdu, Sichuan 641423, China
Research On Jujube Defect Recognition Method Based On Improved Convolution Neural Network, Zhang Zhong-Zhi, Xue Huan-Qing, Fan Guang-Ling
Food and Machinery
Objective: An automatic identification method of jujube defects based on improved convolution neural network was established. Methods: Using the dual branch convolution neural network structure, branch 1 combined with the transfer learning strategy for pre training, analysis 2 extracted the feature information from the jujube image based on the lightweight network fusion feature map. The superiority of this method was verified by comparative experiments. Results: Compared with the improvement before, the improved defect recognition method optimized the structure of the convolutional neural network, and the detection accuracy was further improved, from 96.02% to 99.50%. Conclusion: This method improved the network …
Effects Of Anthocyanins From Vitis Amurensis On Cognitive Impairment In Mice With Chronic Alcoholism,
2021
College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
Effects Of Anthocyanins From Vitis Amurensis On Cognitive Impairment In Mice With Chronic Alcoholism, Liu He, He Yang, Gu Jia-Dong, Wen Lian-Kui
Food and Machinery
Objective: To study the effect of Vitis amurensis. anthocyanins on cognitive impairment induced by chronic alcoholism. Methods: The mice were divided into blank group, model group, low-dose and high-dose groups treated by anthocyanins from V. amurensis. The model of chronic alcoholism was established and intervened with anthocyanin from V. amurensis. Morris water maze and step-down test, antioxidant stress and cholinergic system related indexes were measured, and the hippocampal slices were observed. Results: After anthocyanins intervention, the escape latency of water maze test was shortened by 41.38%, the total swimming distance was shortened by 28.53%, the first stage time was shortened …
The Effects Of Eurotium Cristatum Fermentation Broth On Immunological Indicators In Immunosuppressive Mice,
2021
Changsha Commerce & Tourism College, Changsha, Hunan 410116, China
The Effects Of Eurotium Cristatum Fermentation Broth On Immunological Indicators In Immunosuppressive Mice, Peng Ying
Food and Machinery
Objective: This study aimed to study the effect of Eurotium cristatum fermentation broth on improving the immunity of immunosuppressive mice. Methods: Immunosuppressive model was established by intraperitoneal injection of cyclophosphamide (80 mg/kg) in mice. Then the immunosuppressive mice were fed with low, middle and high dose fermentation broth for 15 days. The spleen index, carbon clearance test, half hemolysis value (HC50), delayed-type hypersensitivity test and the content of IL-2 in serum were detected to explore the changes of immunological indexes in immunosuppressive mice treated with fermentation broth. Results: Compared with the model group, the fermentation broth of the …
Flavonoid Constituents And Antioxidant Activities Of Crude Ethanolic Extracts From Different Tissues Of Premna Puberula Pamb. In Guizhou,
2021
Guiyang Nursing Vocational College, Department of Pharmacy, Guiyang, Guizhou 550081, China; School of Life Science, Guizhou University, Guiyang, Guizhou 550025, China
Flavonoid Constituents And Antioxidant Activities Of Crude Ethanolic Extracts From Different Tissues Of Premna Puberula Pamb. In Guizhou, Yang Ning-Xian, Yang Jiao, Wang Yan-Qiu, Zhang Ming-Sheng
Food and Machinery
Objective: To enrich natural sources of antioxidants. Methods: The scavenging ability of DPPH and ABTS+ of extracts from Guizhou Premna puberula Pamb. was detected by ultrasonic extraction of total phenols and total flavonoids from roots, stems and leaves. Results: All the tissues had certain antioxidant activity and the antioxidant activity of leaves was the strongest, which was positively correlated with the contents of total phenols and total flavonoids. When the mass concentration was 0.1 mg/mL, the DPPH radical scavenging rate of leaves could reach 82.5%, which was close to the total reducing power of VC. Conclusion: It indicated that …
Optimization Of Polysaccharide Extraction Process From Aralia Elata（Miq.） Seem By Complex Enzymes And The Research Of Its Antioxidant Activity,
2021
Heilongjiang Vocational Institute of Ecological Engineering, Haerbin, Heilongjiang 150025, China
Optimization Of Polysaccharide Extraction Process From Aralia Elata（Miq.） Seem By Complex Enzymes And The Research Of Its Antioxidant Activity, Zhang Gui-Juan, Chen Ji-Ling, Tao Hui-Zhu
Food and Machinery
Objective: This study aimed to optimization of polysaccharide extraction process from Aralia elata (Miq.) Seem by complex enzymes and research of its antioxidant activity. Methods: The cellulase, pectinase and papain were combined as the compound enzymes and used to extract the polysaccharide from A. elata (AEPS). Enzymolysis temperature, enzymolysis duration, and solid-liquid ratio as the independent variables, a three-level-three-factor scheme was designed using the Box-Behnken method. After that, the antioxidant activity of AEPS was determined by the free radical scavenging ability experiments. Results: The optimal process conditions for the extraction process of AEPS using complex enzymes were as follows: enzymolysis …
Research Progress On The Effect Of Purple Sweet Potato Flour On The Processing Characteristics Of Wheat Dough,
2021
Hunan Provincial Key Laboratory of Special Medical Food Processing, Changsha, Hunan 410004, China; College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Research Progress On The Effect Of Purple Sweet Potato Flour On The Processing Characteristics Of Wheat Dough, Hu Han, Wang Ya-Shu, Zhou Wen-Hua, Zhang Meng-Xiao, Tan Yu-Heng, Li Liang-Yi
Food and Machinery
The research on the processing characteristics of purple potato-wheat mixed flour in recent years, and the changes of purple potato flour on the rheological properties of wheat dough in terms of silty, texture, stretching, dynamic rheology were summarized. The change law of the influence of gelatinization and aging on the thermodynamic properties was reviewed. Moreover, the existing problems in the current research on purple sweet potato-wheat mixed flour were analyzed, and the future research directions has been prospected.
Review On Separation, Purification And Functional Activity Of Plant Tannin,
2021
College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
Review On Separation, Purification And Functional Activity Of Plant Tannin, Huang Da-Rong, Zhang Ya-Zhen, Zheng Bai-Tao, Du Bing, Li Pan
Food and Machinery
The types and applications of botanical tannin was reviewed. Moreover, the purification process and functional activity of tannin were summarized, and the relative mechanism was preliminarily introduced. The research direction in the future was also prospected.
Effect Of The High Pressure Jet Mill Treatment On The Stability Of Oat Pulp,
2021
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China
Effect Of The High Pressure Jet Mill Treatment On The Stability Of Oat Pulp, Huang Su-Jun, Wang Yue-Ru, Deng Li-Ping, Luo Shun-Jing, Liu Cheng-Mei
Food and Machinery
Objective: To study the effect and mechanism of the high-pressure jet mill on the stability of oat pulp, and to provide a theoretical reference for the processing of whole grain beverages. Methods: The oat pulp was processed with different pressures and high-pressure jet mills, and the morphology, instability index, particle size, and rheological properties of the storage period (30 d) were compared. Moreover the microscopic morphology (optical microscope, laser confocal scanning microscope), scanning electron microscope), soluble component content (soluble solids, soluble protein, soluble dietary fiber) were analyzed. Results: The high-pressure jet mill treatment gradually reduced the particle size, instability index, …
