A Thermostatic Control System For Food Drying Equipment Based On Platinum Resistance And Hardware Closed-Loop Control,
2020
Hunan Automotive Engineering Vocational College, Zhuzhou, Hunan 412001 , China
A Thermostatic Control System For Food Drying Equipment Based On Platinum Resistance And Hardware Closed-Loop Control, Shu Wang, Chen Guang-Wei
Food and Machinery
Aiming at the problems of low control precision and slow response speed of the existing food drying equipment thermostatic control system, this paper presents and designs a kind of food drying equipment thermostatic control system based on platinum resistance as temperature sensing device and hardware closed-loop control circuit for constant temperature control. The test results show that the constant temperature error of the system is within ±0.1 ℃, and the average response time of constant temperature is 4 min 56 s, which can effectively improve the system constant temperature control accuracy and response speed.
Study On The Control System Of The Automatic Filling Machine For The Oil And Pepper With Multi Particle State,
2020
Guizhou Forestry School, Guiyang, Guizhou 550201 , China
Study On The Control System Of The Automatic Filling Machine For The Oil And Pepper With Multi Particle State, Long Fei-Fan, Li Rong-Long, Liu Fang
Food and Machinery
In order to improve the automatic filling level of multi particle oil capsicum materials, a new generation of oil capsicum filling machine control system is developed by using PLC control technology in combination with the physical characteristics of oil capsicum materials and the filling process requirements of the enterprise. The control system is debugged and filled with 210, 220 and 280 g bottles of Laoganda oil capsicum series products. The results showed that the qualified rate of the control system was 100%, the filling speed was about 411 bottles/hour, and the average solid content of each bottle was about 63.6%. …
Research On Modification Of Flow Calculation Of Screw Feeder,
2020
Jiangxi Teachers College, Yingtan, Jiangxi 335000 , China
Research On Modification Of Flow Calculation Of Screw Feeder, Lin Yuan, Xu Chang-Bin, Zhou Xiang-Ming, Cheng Shuai-Peng
Food and Machinery
For the problem that the actual flow detection value of the screw feeder differs greatly from the calculation value of the traditional calculation formula, an RSM eperimental design is used to modify the flow calculation formula of the screw feeder. Considering the complexity of the actual test, the ratio of the flow value measured by the discrete element simulation and the value calculated by the calculation formula is used as the response, and the RSM experimental design is designed by taking the screw pitch, speed, and pipe diameter that significantly affect the flow difference as the factors. The second-order regression …
Innovation Of Food Packaging Design Under The Trend Of Multi-Sensory Design,
2020
Suzhou University, Suzhou, Jiangsu 215000 , China
Innovation Of Food Packaging Design Under The Trend Of Multi-Sensory Design, Zhang Da-Lu
Food and Machinery
The multi-sensory packaging design is made through establishing channels outside of the visual senses, which can enhance the sensory stimulation for consumers, and promote the emotional communication between products and people. It is more fun and interactive, in line with the humanization design concept. The multi-sensory packaging design is different from general packaging design, which make the customers not only from the visual sense experience, but pay more attention to the value of the tactile experience, deepen the sensory experience emotional impact, and improve the product identification from the multi-sensory experience. It is pointed out that multi-sensory packaging design should …
Egg Crack Detection Based On Improved Particle Swarm Optimization,
2020
Huanghuai University, Zhumadian, Henan 463000 , China
Egg Crack Detection Based On Improved Particle Swarm Optimization, Zhang Jian, Cui Ying-Jie
Food and Machinery
Aiming at the problems of complexity and minuteness of egg crack detection, the improved particle swarm optimization algorithm is proposed in order to improve the detection effect. Firstly, the inertia weight was adjusted with cosine function, having the large value in the early stage and small value in the later stage. Secondly, particle reverse learning was prevented from falling into the extreme value trap, and the optimization was improved efficiently. Thirdly, adaptive threshold was segmented the egg image, variable median filter window was removed the dark spots on the egg image surface, and incomplete Beta function was enhanced the image. …
Effect Of Biological Preservative Paper On The Storage Quality Of Plum Fruit,
2020
Guiyang University, Guiyang, Guizhou 550005 , China
Effect Of Biological Preservative Paper On The Storage Quality Of Plum Fruit, Ba Liang-Jie, Luo Dong-Lan, Ji Ning, Ma Chao, Wang Rui, Cao Sen, Wu Wen-Neng, Lei Ji-Qin
Food and Machinery
Plum fruits was used to evaluate the effects of biological preservative paper, soaked with natamycin and ε-polylysine separately, on their storage quality at 20 ℃. To reveal the mechanism, the decay ratio, weight loss rate, respiratory intensity, ethylene production rate, hardness, malondialdehyde, total soluble solids, titratable acid, VC content, and number of mold and yeast colonies were measured during the plum storage. The results showed that comparing with control, natamycin and ε-polylysine preservative paper could obviously inhibit the increase of fruit decay ratio, weight loss rate, and malondialdehyde content, and reduce the respiratory intensity, ethylene production rate, and the …
Parameter Design And Experiment Of Spectral Detection Tray For Orange Fruit Quality Based On Trace Pro Simulation,
2020
College of Engineering, South China Agricultural University, Guangzhou, Guangdong 516042 , China
Parameter Design And Experiment Of Spectral Detection Tray For Orange Fruit Quality Based On Trace Pro Simulation, Zhang Qian-Qian, Xu Sai, Lu Hua-Zhong
Food and Machinery
In order to realize the visible/near infrared spectroscopy nondestructive testing of the internal quality of orange fruits, Trace pro software is used to carry out optical simulation analysis on the designed orange fruit online testing and conveying tray model. referring to the luminance/illuminance value in the simulation result, the tray model with higher value is processed in kind, and is tested and verified by combining with the actual spectrum testing platform.The simulation results show that the optimal shape parameters of the achievement transfer tray were: outer diameter 80 mm, inner transverse diameter 55 mm, inner longitudinal diameter 50 mm, and …
Prediction Method Of Banana Pulp Defect By Machine Vision,
2020
School of Mechanical Engineerin, Hubei University of Technology, Wuhan, Hubei 430068 , China
Prediction Method Of Banana Pulp Defect By Machine Vision, Zhang Zheng, Xiong Sheng-Hui, Wang Sun-Qiang, Hu Ling-Hui
Food and Machinery
In view of the problem that it is difficult to predict the inner pulp defect of banana, the machine vision technology is employed to recognize the image of banana peel and pulp, and then fits the recognition parameters to get the prediction model of pulp defect. The collected image, grayed and filtered, is recognized by double threshold and morphological analysis to extract banana peel, banana pulp, banana peel black spot and banana pulp defect. Thereafter, the total number of pixels in the extracted region is calculated, and the total number of pixels is taken as the area of the region. …
Optimization Of Preparation Technology And Structural Characterization Of Tilapia Scale Collagen Peptide Ferrous Chelate,
2020
Jiangxi Normal University National Freshwater Fish Processing Technology R & D Professional Center,Nanchang, Jiangxi 330022 , China ；Jiangxi Normal University Jiangxi Province Freshwater Fish High-valueUtilization Engineering Technology Research Center, Nanchang, Jiangxi 330022 , China
Optimization Of Preparation Technology And Structural Characterization Of Tilapia Scale Collagen Peptide Ferrous Chelate, Tang Shun-Bo, Tu Zong-Cai, Sha Xiao-Mei, Zhang Yao, Zhang Lu
Food and Machinery
The peptide ferrous chelate was prepared using tilapia scale collagen peptide and ferrous chloride salt as raw materials, and its optimal chelating conditions and chelate structure were investigated. Using chelate yield as an indicator, the chelation conditions were optimized by single factor and response surface methods; The structure and amino acid composition of the chelate were analyzed by scanning electron microscope, Fourier infrared spectroscopy, X-ray diffraction and amino acid analysis. The results showed that the optimal reaction conditions for preparing the chelate were pH 5.30, peptide concentration 3.00%, and peptide to iron mass ratio 3.2∶1.0. Under these conditions, the chelation …
Isolation, Purification And Electrophoretic Analysis Of Rice Bean Lectin,
2020
College of Food Science Heilongjiang Bayi Agricultural University, Daqing, Helongjiang 163319 , China
Isolation, Purification And Electrophoretic Analysis Of Rice Bean Lectin, Xiao Jun-Qi, Zhai Ai-Hua, Zhang Dong-Jie
Food and Machinery
The Vigna umbellata lectin as the research object, based on the results of single factor experiments, the extraction process is optimized by response surface experiments. Further purification was made by using ammonium sulfate fractionation precipitation method,Q Sepharose XL anion exchange chromatography, phenyl FF HP hydrophobic chromatography and Sephadex G-50 gel filtration chromatography, and the protein was analyzed by SDS-PAGE electrophoresis. The results showed that the optimum extraction parameters were as follows: PBS is used as the extracting solution, the ratio of material to liquid was 1∶23 (g/mL), pH value was 7.8, and the duration was 14 h and the agglutination …
Study On Antioxidant And Antibacterial Activities Ofpolysaccharides In Phropolyporus Fomentarius,
2020
Medical College, Shaanxi Institute of International Trade, Xianyang, Shaanxi 712046 , China
Study On Antioxidant And Antibacterial Activities Ofpolysaccharides In Phropolyporus Fomentarius, Xu Hai-Yan, Peng Xiu-Juan, Wang Shan, Liu Yan-Hong, Liu Feng
Food and Machinery
In this study, the water-extracted ethanol precipitation method was used to extract Polysaccharides in Pyropolyporus Formentarius (PFPS), and the capacities of scavenging DPPH and ABTS were analyzed. Different concentrations of PFPS were used to detect the resistant abilities against Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, and Micrococcus tetragenus, and the relative minimum inhibitory concentration (MIC) were also determined. The results showed that PFPS could eliminate DPPH and ABTS. When the concentration of PFPS was 1.0 mg/mL, the ability of scavenging DPPH and ABTS exceeded that of the BHT control, while was weaker than the VC reference substance. …
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix,
2020
College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology,Shijiazhuang, Hebei 050018 , China
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix, Jing Yong-Shuai, Jin Shan, Zhang Dan-Shen, Zhang Rui-Juan, Wang Fei-Fan, Zheng Yu-Guang, Wu Lan-Fang
Food and Machinery
To study the physicochemical properties and antioxidant activity of ethanol-graded polysaccharides of Glehnia Radix. Four kinds of polysaccharides of Glehnia Radix (GLP-30, GLP-50, GLP-70, GLP-residual) were fractionated and purified by water extraction and alcohol precipitation. Fourier transform infrared spectroscopy, high performance liquid chromatography, and gel permeation chromatography, scanning electron microscopy, and differential scanning calorimetry-thermogravimetric analysis were used to evaluate the physicochemical properties and structure characteristics of polysaccharides. The antioxidant activities were also studied. The four polysaccharides of Glehnia Radix have the typical groups of polysaccharides, but the results of differential scanning calorimetry are quite different, which may be due …
Effect Of Processing Technology On The Volatile Flavor Components Of Zhijiang Duck,
2020
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128 , China ；Hunan Provincial Research Center of Engineering and Technology for Fermented Food, Changsha,Hunan 410128 , China
Effect Of Processing Technology On The Volatile Flavor Components Of Zhijiang Duck, Gong Yao-Qian, Liu Hong-Mei, Luo Feng-Lian, Liu Yan
Food and Machinery
In order to study the effect of processing technology on the volatile flavor components of Zhijiang duck, SPME combined with GC-MS spectrometry was used to detect the types and types of volatile flavor substances in the four stages of raw meat, fried, fried, and sterilized. Relative content. The results showed that the number of volatile flavor components after the four processing stages of raw meat, deep-fried, fried, and sterilized were 44, 19, 39, and 39, respectively. Among them, aldehydes, terpenes, alcohols, and ketones are the main flavor substances, followed by esters, alkanes, and other heterocyclic compounds. Principal component analysis showed …
Nutritive Composition Analysis Of Highland Barley Flour And Optimization Of Processing Parameters For Highland Barley Chips,
2020
Changsha Food and Drug Information and Evaluation and CertificationCenter, Changsha, Hunan 410013 , China
Nutritive Composition Analysis Of Highland Barley Flour And Optimization Of Processing Parameters For Highland Barley Chips, He Wei
Food and Machinery
Nutritional components of highland barley flour were analyzed, including protein, fat, ash, moisture and amino acids. The processing parameters for highland barley chips was studied, including extrusion puffed, pre-drying and roasting. The results showed that, in the highland barley flour, the protein contents of protein, fat, moisture and ash were 10.23 g/100 g, 2.51 g/100 g, 8.41 g/100 g, and 1.86 g/100 g respectively. Highland barley flour contained 17 amino acids, and the contents of total amino acid were 9.471 g/100 g. The optimum preparation of extrusion puffed conditions were determined as follows: barrel temperature of T2 to T6 were …
Effects Of Different Pretreatment On The Quality Of Sweet Potato Leaves With Heat Pump Drying,
2020
School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Effects Of Different Pretreatment On The Quality Of Sweet Potato Leaves With Heat Pump Drying, Yang Yu, Ren Guang-Yue, Shi Ya-Nan, Liu Shu-Lin, Zhang Ya-Feng, Ma Li-Ping
Food and Machinery
In order to explore the quality change characteristics of sweet potato leaves during salinization, ultrasonic, and their combined pretreatment, the physicochemical properties of sweet potato leaves during heat pump drying under different pretreatment processes were studied. The results showed that when the POD enzyme after drying was low in suitability and strong in antioxidant capacity, with 4% of salt concentration, Under the control of these conditions, the rehydration of sweet potato leaves was generally higher than that of others. Moreover, the drying time was the shortest and the comprehensive score was the highest.
Study On The Hydrolysis Of Starch And Protein In Tobacco Leaves By Formic Acid For Improving The Quality Of Tobacco,
2020
China Tobacco Guangdong Industrial Corporation Limited, Guangzhou, Guangdong 510385 , China
Study On The Hydrolysis Of Starch And Protein In Tobacco Leaves By Formic Acid For Improving The Quality Of Tobacco, Lin Yun, Luo Si-Wei, Ou-Yang Lu-Si, Chen Sen-Lin, Lai Yan-Hua, Tao Hong, Lin Bao-Min, Jia Li-Shan
Food and Machinery
In order to solve the problem of poor sensory quality caused by the high content of starch and protein in tobacco leaves, a method for degrading starch and protein without affecting the workability of tobacco leaves was investigated. In this study, formic acid was used as catalyst to spray proper amount on tobacco leaves. The hydrolysis of starch and protein in tobacco leaves catalyzed by formic acid, which played an effective role in regulating and reducing the starch and protein content. When the concentration of formic acid ranged from 5% to 10% at 50 ℃, with the sprinkling rate of …
Research Progress On Improving Temperature Distribution Uniformity Of Refrigerated Containers,
2020
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306 , China ；ShanghaiProfessional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation,Shanghai 201306 , China ；National Experimental Teaching Demonstration Center for Food Science andEngineering, Shanghai Ocean University, Shanghai 201306 , China ；College of Food Science and Technology,Shanghai Ocean University 201306 , China
Research Progress On Improving Temperature Distribution Uniformity Of Refrigerated Containers, Jia Fa-Tong, Yang Da-Zhang, Xie Jing, Wang Jin-Feng
Food and Machinery
The influence of cargo stack, air supply velocity, air supply form, the fan position and other factors on the temperature distribution of refrigerated containers is reviewed, and the spatial distribution characteristics of the temperature field in the container are also expounded. The relevant factors affecting the temperature distribution in the container are compared and analyzed, and its future development direction is prospected.
Research Progress On The Main Components And Comprehensive Utilization Of Camellia Oleifera Cake,
2020
The Key Laboratory of Special Medical Food Processing in Hunan Province, Changsha, Hunan 410004 ,China ；The Institute of Food Science and Engineering in Central South University of Forestry andTechnology, Changsha, Hunan 410004 , China
Research Progress On The Main Components And Comprehensive Utilization Of Camellia Oleifera Cake, Liu Chu-Cen, Fei Xiao-Fang, Zhou Wen-Hua, Mo Hua
Food and Machinery
In this paper,the extraction and application of protein, polysaccharide, polyphenol and tea saponin from Camellia oleifera cake were reviewed. It is found that Camellia oleifera meal has high processing and utilization value, which can be used as new food raw material or feed, chemical industry, light industry and other important raw materials. On the whole, the by-products of Camellia oleifera have certain potential in the development and application direction of special medical food and health food.
Added Sugars: What You Need To Know,
2020
Utah State University
Added Sugars: What You Need To Know, Carrie Durward, Keshele Stevens
All Current Publications
Added sugar has become a hot topic among health professionals and in the media. Based on the best available evidence, health professionals recommend that less than 10% of daily calories come from added sugar (U.S. Department of Health and Human Services [HHS] & U.S. Department of Agriculture [USDA], 2015c) in order to maintain a balanced diet with all the important nutrients. In this fact sheet, we will address why and how to limit added sugar in your diet, what it is, and where to find it.
Identification And Polar Lipid Composition Analysis Of Yeasts Isolated From Sufu Manufacture,
2020
South China University of Technology, Guangzhou, Guangdong 510642 , China
Identification And Polar Lipid Composition Analysis Of Yeasts Isolated From Sufu Manufacture, Chen Si-Kai, Lin Sheng-Jie, Li Li
Food and Machinery
In order to characterize lipid metabolism of yeasts during sufu manufacture, 23 isolates from sufu pehtze and acidic tofu whey were identified. Ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was used to analyse the lipid fingerprints of 7 strains of yeast, after the determination of lipase activities. It is suggested that lipid fingerprint mainly includes 2 kinds of sphingosine, 16 kinds of amide, 22 kinds of ester and 3 kinds of fatty acid. Kluyveromyces marxianus SP-1 and Candida (Pichia) norvegensis SP-5 show highest relative amount of 2-Amino-1,3,4-octadecanetrio and N, N-Dimethylsphingosine, which indicates potential for sphingolipids synthesis. Candida ethanolica ATW-1, Pichia …
