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Articles 181 - 210 of 340
Full-Text Articles in Food Biotechnology
Edible Films Made Of Corn Zein Protein And Cellulose Derivatives, Gloria Dukuzeyesu, Changmou Xu, Zhang Yue
Edible Films Made Of Corn Zein Protein And Cellulose Derivatives, Gloria Dukuzeyesu, Changmou Xu, Zhang Yue
UCARE: Research Products
A composite edible film made of corn zein protein (Z) and cellulose derivatives (C) was successfully fabricated. Edible films are coatings used to wrap food products to protect them against microbial deterioration, loss of moisture, and to extend the shelf life of the product. These edible films are consumed together with the product . The mechanical properties, water vapor permeability, application on fruits, and shelf life of the composite film were studied. Zein demonstrated excellent packing characteristics; due to its high no polar contents and hydrophobic nature, zein film served as a moisture barrier. Hydroproxy methylcellulose (HPM) is tasteless, odorless …
Changes Of Gel Properties During Heating Of Duck Albumen Induced By Alkali, Ling Zi-Ting, Jiang Ai-Min, Zhou Quan, Fan Hong, Ai Min-Min, Cao Yuan-Yuan
Changes Of Gel Properties During Heating Of Duck Albumen Induced By Alkali, Ling Zi-Ting, Jiang Ai-Min, Zhou Quan, Fan Hong, Ai Min-Min, Cao Yuan-Yuan
Food and Machinery
In this study, the effects of heating temperature on the gelation properties of duck albumen with 0.50% NaOH were studied by measuring the texture, water-holding capacity, pH, color, SDS-PAGE and net-work protein of duck albumen in the range of 65~95 ℃. The results showed that the firmness of the gel increased from 68.88 g to the maximum 652.35 g (70 ℃) after heating, with an increase of 8.47 times. Moreover, the elasticity increased from 45.20% to 77.5% as heated to 95 ℃. The water-holding capacity of the alkali-induced duck albumen gel increased to a maximum of 89.02% at 75 ℃, …
Quality Evaluation Of Guizhou Kidney Beans Based On Principal Component Analysis, Wang He-Zhu, Zhu Yong, Zhu Yi, He You-Xun, Qin Li-Kang, Liang Ya-Li
Quality Evaluation Of Guizhou Kidney Beans Based On Principal Component Analysis, Wang He-Zhu, Zhu Yong, Zhu Yi, He You-Xun, Qin Li-Kang, Liang Ya-Li
Food and Machinery
Seven types of Guizhou kidney beans were used to evaluate their quality based on principal component analysis of main nutritional components. The results showed that the content of protein in kidney beans ranged from 19.11% to 23.69%. The total contents of the dietary fiber were found ranging from 23.09% to 27.60%, and those in British red bean were the highest. Seven kinds of kidney beans were rich in Ca, Mg, P, and K, ranging from 0.09% to 0.20%, 0.19% to 0.29%, 0.45% to 0.61%, and 1.48% to 1.69%, respectively; The contents of glutamic acid, aspartic acid, and leucine in these …
Verification Of Anti-Adhesive Performance Of Modified Polypropylene Films And Its Packaging Application, Sui Yue, Yang Fu-Xin, Cheng Long, Xu Tao
Verification Of Anti-Adhesive Performance Of Modified Polypropylene Films And Its Packaging Application, Sui Yue, Yang Fu-Xin, Cheng Long, Xu Tao
Food and Machinery
Firstly, measured the contact angle of yogurt on films, verified the anti-adhesive effect of films with two different methods and then tested the hygienic performance of the modified films. The results showed that: 7% silicone oil + 93% polypropylene mixed modified film and 8% polytetrafluoroethylene + 92% polypropylene modified film had the best performance. The contact angles were: 85.97° and 98.84° respectively. After the verification of two anti-adhesive methods, the yogurt residues of the 7% silicone oil-modified film were 28.67% and 23.45% respectively, and the yogurt residues of the 8% polytetrafluoroethylene-modified film were 26.61% and 23.11% respectively; After safety verification, …
Effect Of 60Co-Γ Ray And Electron Beam Irradiation On Microbial Property And Qualities Of Black Broken Tea, Zhang Qi-Ling, Peng Ling, Xu Yuan-Fang, Zhou Yi-Ji, Guo Feng, Zhang Yong, Deng Chao, Li Wen-Ge
Effect Of 60Co-Γ Ray And Electron Beam Irradiation On Microbial Property And Qualities Of Black Broken Tea, Zhang Qi-Ling, Peng Ling, Xu Yuan-Fang, Zhou Yi-Ji, Guo Feng, Zhang Yong, Deng Chao, Li Wen-Ge
Food and Machinery
In order to investigate the effect of 60Co-gamma ray and electron beam irradiation on the microbial property and qualities of black broken tea, different doses of 60Co-gamma ray irradiation and electron beam irradiation were used to irradiate black broken tea, and the effects of 60Co-gamma ray irradiation and electron beam irradiation on microorganism, quality composition and sensory quality of black broken tea were studied. The results showed that both 60Co-gamma ray irradiation and electron beam irradiation could effectively inhibit the microbial pollution in black broken tea. It was found that the 60Co-gamma ray irradiation D10 of …
Optimization On Ultrasonic-Assisted Extraction Of Polyphenols From Cyclobalanopsis Glauca Shells By Response Surface Methodology And Study On Its Antioxidant Activity In Vitro, Ru Yue-Rong, Zhang Zhi-Yang, Yang Jin-Mei, He Bin, Kan Huan, Liu Yun, Wang Zhen-Xing, Zhang Xue-Chun
Optimization On Ultrasonic-Assisted Extraction Of Polyphenols From Cyclobalanopsis Glauca Shells By Response Surface Methodology And Study On Its Antioxidant Activity In Vitro, Ru Yue-Rong, Zhang Zhi-Yang, Yang Jin-Mei, He Bin, Kan Huan, Liu Yun, Wang Zhen-Xing, Zhang Xue-Chun
Food and Machinery
The ultrasound-assisted extraction was applied to the extraction of polyphenols from the Cyclobalanopsis glauca fruit shells. The effects of the concentration of ethanol, solid-liquid ratio, ultrasonic time, and number of extraction cycles on the yield of phenolic yield were studied, and the extraction process was optimized by response surface methodology (RSM). Then the in vitro antioxidant activities of Cyclobalanopsis glauca shell fruit extract (CGSE), including ferric ion reducing antioxidant power (FRAP) and oxygen radical absorbance capacity (ORAC), were evaluated. Results: The optimal extraction process were as followed: volume fraction of ethyl alcohol 50%, extracting time 25 min, solid-liquid ratio 1:40, …
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang
Food and Machinery
An orthogonal test was utilized to optimize the ultrasonic-assisted extraction process of polysaccharides from Lilium davidii var waste bulb, and the stability of the polysaccharides was studied. The results showed that the optimum extraction conditions for ultrasonic-assisted extraction process were as followed: the ratio solid to liquid of 1:20 (g/mL), ultrasonic time of 60 min, ultrasonic power 250 W, and ultrasonic temperature 60 ℃. Under the conditions, the extracting rate of polysaccharides from Lilium davidii var was 18.44%. The anti-oxidization stability of polysaccharide extracts was poor, whicht was easy to be oxidized by H2O2, but has …
Research Progress Of Improved Enzyme-Linked Immunosorbent Assay Based On Nanomaterials, Zhang Guang-Yin, Lu Dai, Deng Fang-Ming, Zhao Qian, Shi Xing-Bo
Research Progress Of Improved Enzyme-Linked Immunosorbent Assay Based On Nanomaterials, Zhang Guang-Yin, Lu Dai, Deng Fang-Ming, Zhao Qian, Shi Xing-Bo
Food and Machinery
The recent development of improved ELISA was summarized. Nanomaterials as a substitute for traditional biological enzymes and signal substrates for colorimetry, fluorescence, electrochemistry, photothermal effects, surface enhanced Raman scattering, and chemiluminescence were also reviewed. Finally, the development direction and challenges of the improved ELISA were analyzed, and its application prospect was prospected.
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch, Chen Yue-Yu, Ou Yu-Jia, Zeng Hong-Liang, Zhang Yi, Zheng Bao-Dong
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch, Chen Yue-Yu, Ou Yu-Jia, Zeng Hong-Liang, Zhang Yi, Zheng Bao-Dong
Food and Machinery
Effects of monosaccharide (glucose and fructose) on the retrogradation of lotus seed starch were studied from the aspects of crystal structure, molecular structure and molecular weight. The results of X-ray diffraction, nuclear magnetic resonance and infrared spectrum showed that glucose and fructose could inhibit the recrystallization of lotus seed starch. The crystallinity, double helix structure and short-range ordered structure decreased, and the proportion of amorphous area increased in the composite system, indicating that glucose and fructose might inhibit the retrogradation of starch. The inhibition of glucose on starch retrogradation was more significant than fructose, which might be related to the …
Isolation And Identification Of Lactic Acid Bacteria From Fermented Grain For Light-Baijiu Brewing And Study Of Their Autolysis Characteristic, Li Zhi-Qi, Shi Ying, Wang Meng-Meng, Mao Jian, Zhang Xiu-Hong
Isolation And Identification Of Lactic Acid Bacteria From Fermented Grain For Light-Baijiu Brewing And Study Of Their Autolysis Characteristic, Li Zhi-Qi, Shi Ying, Wang Meng-Meng, Mao Jian, Zhang Xiu-Hong
Food and Machinery
47 isolates with obvious calcium dissolving circle were screened from fermented grains for light-Baijiu brewing by MRS calcium carbonate medium. Through physiological and biochemical characteristics and 16S rDNA sequences, it was found that the closed lactic acid bacteria strains were 20 strains Lactobacillus brevis, 16 strains L. plantarum, 7 strains L. buchneri, and 4 strains L. pentosus, respectively. By turbidimetric method, the autolysis of 47 strains of lactic acid bacteria was determined, and their autolysis ranged from 5.01%~29.27%. There was no correlation between the autosolubility and species, showing strains specificity. The autolysis characteristic of the 9 strains …
Clinical Trial Of Sugar-Control Ling Cakes On Blood Glucose Fluctuation In Diabetic Patients, Sheng Qing-Hai, Yan Bin, Jia Yan-Ju, Liu Jing, Xu Li, Tian Ting-Ting, Xie Ying, Han Xu, Li Zeng-Ning
Clinical Trial Of Sugar-Control Ling Cakes On Blood Glucose Fluctuation In Diabetic Patients, Sheng Qing-Hai, Yan Bin, Jia Yan-Ju, Liu Jing, Xu Li, Tian Ting-Ting, Xie Ying, Han Xu, Li Zeng-Ning
Food and Machinery
This test evaluated the auxiliary hypoglycemic effect of cakes processed from bitter almond flour, Luo Han Guo powder, resistant starch, polydextrose and other materials on patients with type 2 diabetes. The test used a self-matching design, during the 12-week test period, and subjects were interspersed with a control breakfast and a test breakfast. The subjects were tested for fasting blood glucose, 2 hours postprandial blood glucose, glycated hemoglobin, and safety indicators. The results showed that test cakes can significantly reduce the 2 h postprandial blood glucose (P≤0.01) and glycated hemoglobin (P≤0.01) in diabetic patients. There was no significant difference in …
Study On Intervention Effects Of Electrophilic Components From Xiaoheiyao Against Free Fatty Acid-Induced Steatosis In Hepg2 Cells, Dong Wen-Le, Jiang Yu-Ge, Xia Shu-Fang, Cao Cong-Cong, Zhao Wei, Cheng Xiang-Rong
Study On Intervention Effects Of Electrophilic Components From Xiaoheiyao Against Free Fatty Acid-Induced Steatosis In Hepg2 Cells, Dong Wen-Le, Jiang Yu-Ge, Xia Shu-Fang, Cao Cong-Cong, Zhao Wei, Cheng Xiang-Rong
Food and Machinery
The electrophilic components in Xiaoheiyao were knocked out by GSH functionalized magnetic nanoparticles (GSH-MNPs) and characterized by LC-MS analysis, and the effect and mechanism of the electrophilic components in Xiaoheiyao for reducing lipid accumulation and oxidative stress in hepatocytes were evaluated, based on free fatty acid (FFA)-induced HepG2 cells. The ethyl acetate fraction was determined as the most electrophilic components-enriched part of Xiaoheiyao. At the concentration of 0.5~2.0 μg/mL, the petroleum ether, ethyl acetate and water fractions of Xiaoheiyao exhibited the activities of decreasing hepatic lipid accumulation and ROS production, in which the ethyl acetate fraction showed the best activities. …
Changes Of Bioactive Substances And Antioxidant Properties Of Three Kinds Of Quinoa During Germination, Chen Yi-Sheng, Shu Lan-Ping, Xu Xue-Ming, Chen Zhong-Zhen, Hong Ting-Ting, Huang Cai-Hong, Wei Xiao, Chen Qi-Fei, Jin Ya-Mei
Changes Of Bioactive Substances And Antioxidant Properties Of Three Kinds Of Quinoa During Germination, Chen Yi-Sheng, Shu Lan-Ping, Xu Xue-Ming, Chen Zhong-Zhen, Hong Ting-Ting, Huang Cai-Hong, Wei Xiao, Chen Qi-Fei, Jin Ya-Mei
Food and Machinery
The antioxidant activity and content of bioactive substances, including γ- aminobutyric acid, epicatechin, epigallocatechin gallate, saponins and polyphenols, in black quinoa, red quinoa and white quinoa were studied in this study. The results showed that, after 72 h germination treatment, the content of γ-aminobutyric acid in black, red and white quinoa increased to 110.10, 157.40 and 135.70 mg/100 g at maximum, respectively. The increase rate of the epicatechin was the biggest, and they were found to be 7.11, 5.32 and 1.32 times, respectively. Among which, the content of epigallocatechin gallate increased by 4.23, 2.79 and 3.29 times, respectively. In …
Study On Functional Properties Of Dietary Fiber From Pinus Koraiensis Nut Coated-Film, Wang Chao, Xu Hong-Yan, Yang Xi-Ming, Zhong Wen-Jie
Study On Functional Properties Of Dietary Fiber From Pinus Koraiensis Nut Coated-Film, Wang Chao, Xu Hong-Yan, Yang Xi-Ming, Zhong Wen-Jie
Food and Machinery
Preparation of soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) using Pinus Koraiensis nut coated-film as raw material, and xylanase in insoluble dietary fiber modification, prepared modified soluble fiber (MSDF) and modified insoluble dietary fiber (MIDF), and determined the dialysis delay index of glucose, cholesterol, sodium cholate adsorption capacity and glucose. Results: the glucose adsorption capacity of MSDF was significantly higher than that of SDF, and the glucose adsorption capacity of MIDF was significantly higher than that of IDF. In the simulated gastric environment, the cholesterol adsorption capacity of modified dietary fiber was improved, and MSDF was significantly higher …
Analysis On Volatile Components In Different Parts Of Hedychium Coroarium By Hs-Spme/Gc/Ms, Zhao Yang, Cheng Li, Du Ting, Ye Chong, Mao Han-Bing, Yang Zhan-Nan
Analysis On Volatile Components In Different Parts Of Hedychium Coroarium By Hs-Spme/Gc/Ms, Zhao Yang, Cheng Li, Du Ting, Ye Chong, Mao Han-Bing, Yang Zhan-Nan
Food and Machinery
The volatile components were extracted and identified by solid phase microextraction combined with gas chromatography-mass spectrometry (HS-SPME-GC/MS), and the relative content of components were analyzed by area normalization. The results showed that 57, 63, and 60 kinds of compounds were identified from the roots, stems and leaves, and flowers of H. coroarium, accounting for 83.864%, 66.624%, 86.912% of the total volatile components, respectively. Among which 36 kinds of were common. The content of β-pinene in the three parts was relatively high. Most of the volatile components isolated from ginger roots, stems and leaves, flowers are mites. In the development …
Study Of The Preparation And Thermal Degradation And Combustion Behavior Of Flame-Retardant Montmorillonite Ternary Coating On Reconstituted Tobacco Sheet, Li Dong-Liang, Gen Zong-Ze, Tan Lan-Lan, Cai Xin-Yue, Shao Ning, Hou Li, Qu Ya-Qing, Zhu Xiao-Lan
Study Of The Preparation And Thermal Degradation And Combustion Behavior Of Flame-Retardant Montmorillonite Ternary Coating On Reconstituted Tobacco Sheet, Li Dong-Liang, Gen Zong-Ze, Tan Lan-Lan, Cai Xin-Yue, Shao Ning, Hou Li, Qu Ya-Qing, Zhu Xiao-Lan
Food and Machinery
Reconstituted tobacco sheet (RTS) was first modified by ternary intumescent flame retardant (IFR) coating, composed of chitosan (CS), ammonium polyphosphate (APP), and montmorillonite (MMT) by basepaper coating techniques. The effects of composite coating on the combustion behavior and thermal degradation of RTS were studied by micro-scale combustion calorimetry (MCC) and TG-FTIR. MCC experiments confirmed that the CS-APP-MMT-RTS exhibited a 56.1% reduction in total heat release and a 42.8% reduction in peak heat release rate, relative to the uncoated RTS. TG-FTIR results showed that CS-APP-MMT coating reduced the maximum mass loss rate and the release of harmful gaseous products at the …
Rapid Detection Of Alternaria Monomethyl Ether In Wheat By High Performance Liquid Chromatography, Xu Qun-Ying, Zhai Yu-Heng
Rapid Detection Of Alternaria Monomethyl Ether In Wheat By High Performance Liquid Chromatography, Xu Qun-Ying, Zhai Yu-Heng
Food and Machinery
In this study, a high-performance liquid chromatography (HPLC) method for the efficient detection of alternariolmethyl ether (AME) in wheat was developed. The sample was extracted with acetonitrile/ methanol/ water (volume ratio 45/10/45), shaken at 30 ℃ for 30 minutes, and purified by Bond Elut Plexa solid-phase extraction cartridge. Then the sample was detected with a Variable wavelength detector. In this method, the limit of detection (LOD) of AME was 2.52 μg/kg, and the limit of quantification (LOQ) was 8.40 μg/kg, and the linear range was 0.25~2.00 μg/mL. The concentration of AME recovery was 80.1%~88.3%, the intra-day precision and inter-day precision …
Rapid Detection Of Cadmium Based On Fluorescence Molecular Switch And Aptamer, Tu Dong-Kun, Lu Yue, Zheng Xiao-Liang, Huang Min-Li, Wang Yi-Jing, Zeng Shao-Xiao, Xu Hui
Rapid Detection Of Cadmium Based On Fluorescence Molecular Switch And Aptamer, Tu Dong-Kun, Lu Yue, Zheng Xiao-Liang, Huang Min-Li, Wang Yi-Jing, Zeng Shao-Xiao, Xu Hui
Food and Machinery
In order to study the fluorescent dye thiazole orange as a fluorescent molecular switch and a cadmium ion nucleic acid aptamer for the detection of cadmium ions. The effects were examined, from different pH values, thiazole orange-aptamer concentration ratio, binding time of thiazole orange to aptamer, and binding time of aptamer to cadmium ion on the fluorescence intensity of the system. The results showed that when the pH value was 7, the thiazole orange-aptamer concentration ratio was 7∶3, the binding time of thiazole orange and aptamer was 15 min, and the binding time of aptamer and cadmium ion was 20 …
Determination Of Semi-Volatile Organic Compounds In Drinking Water By Gas Chromatography-Triple Quad Ms With Large-Volume Injection, Chen Hong-Bo, Xia Hui-Li, Fang Ru-Yi
Determination Of Semi-Volatile Organic Compounds In Drinking Water By Gas Chromatography-Triple Quad Ms With Large-Volume Injection, Chen Hong-Bo, Xia Hui-Li, Fang Ru-Yi
Food and Machinery
A method for the determination of 29 semi-volatile organic compounds in drinking water by large volume injection-gas chromatography-mass spectrometry was established. The samples were extracted by liquid-liquid extraction with methyl tert-butylether solvent, and the samples were injected in large volume by solvent emptying mode programmed heating up. Multi-Reaction ion Monitoring (MRM) and internal standard method were used to quantify the samples. Results: The calibration curves were linear in the concentration of 0.2~10.0 μg/L, and the correlation coefficient was greater than 0.994. The detection limits of the method was in the range of 0.003~0.110 μg/L, the recovery rates was in the …
Determination Of 7 Kinds Of Polychlorinated Biphenyls In Water By Magnetic Solid Phase Extraction/Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry, Fu Shan-Liang, Zhang Fan, Lu Jing, Chen Lian, Cheng Jing, Zhu Shao-Hua
Determination Of 7 Kinds Of Polychlorinated Biphenyls In Water By Magnetic Solid Phase Extraction/Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry, Fu Shan-Liang, Zhang Fan, Lu Jing, Chen Lian, Cheng Jing, Zhu Shao-Hua
Food and Machinery
Magnetic solid phase extraction(MSPE) based on Fe3O4-grafted graphene oxide (Fe3O4@GO) was combined with thermal desorption-gas chromatography-tandem mass spectrom-etry(TD-GC-MS/MS) to develop an organic solvent free quantitative analysis method for the determination of 7 kinds of indicative polychlorinated biphenyls(PCBs) in water. The factors affecting the extraction efficiency, induding amount of Fe3O4@GO, extraction time and pH value of water sample, were investigated. Under the control of the optimized conditions, an excellent linearity was observed in the range of 2~100 ng/L for the 7 kinds of PCBs, with the correlation coefficients(r)＞0.98. The detection limits (S/N=3) and …
The Improvement Strategies Of Punitive Compensationliability For Food Consumption, Pei Bao-Li
The Improvement Strategies Of Punitive Compensationliability For Food Consumption, Pei Bao-Li
Food and Machinery
Many issues areexisting in the legislations about the punitive damages of food consumption. The punitive damages correspond to different types, whole the relevant regulations are scattered and disordered. Specifically, the uncertain foundation of the right to claim and the conflict rules in competition and cooperation are mostly concerned, and the disputes in cases of determining the subjects of legal rights and the subjects of responsibility matter significantly. By analyzing current regulations and cases, the resolutions of these deficiencies are proposed, and the foundation of the right to claim should be determined by the base number types of punitive damages. As …
Determination Of Volatile Aroma Components In Cigarettes And Optimization Of Flavoring Process Of Tobacco, Li Da, Li Xian-Ke, Zhang Tao, Xu Ren-Jie, Yuan Peng, Li Chao
Determination Of Volatile Aroma Components In Cigarettes And Optimization Of Flavoring Process Of Tobacco, Li Da, Li Xian-Ke, Zhang Tao, Xu Ren-Jie, Yuan Peng, Li Chao
Food and Machinery
A method for the determination of 11 volatile substances in cigarette cut tobacco by headspace-stirring rod solid phase microextraction-thermal desorption-gas chromatography-mass spectrometry (HS-SBSE-TD-GC-MS) was established. The parameters were optimized in the tobacco flavoring process, and the sample pretreatment method and thermal desorption operation conditions were optimized. ① Under the control of the optimized experimental conditions, the correlation coefficient R2 was higher than 0.998, and the detection limit and the lower limit of quantitation were 0.052~0.524 μg/g and 0.172~1.684 μg/g, respectively; ② The spike recovery was at 85.2%~97.6% and the relative standard deviation of the determination results was at 2.7%~6.0%; ③ …
Legal Mechanism Of Chinese Food Trade Dispute Settlement Under “Belt And Road”, Wang Zheng
Legal Mechanism Of Chinese Food Trade Dispute Settlement Under “Belt And Road”, Wang Zheng
Food and Machinery
Chinese food trade is expanding rapidly as the “Belt and Road” moves in an orderly fashion among countries along the route, and the food trade disputes among them are becoming more prominent. Due to the late establishment of the legal system of food safety in China, the food safety standards are not unified enough and un-satisfied with the international standards. In this regard, we should adjust the domestic food safety standards in response to international requirements on the basis of further improving the domestic legal system for food safety and security. Furthermore, this can also construct the legal mechanism of …
Low Energy Consumption Drying Device For Food Based On Integration Of Membrane Distillation And Liquid Desiccant Dehumidification, Gui Da-Li, Chen Dong, Fan Jia-Qi, Xie Ji-Hong
Low Energy Consumption Drying Device For Food Based On Integration Of Membrane Distillation And Liquid Desiccant Dehumidification, Gui Da-Li, Chen Dong, Fan Jia-Qi, Xie Ji-Hong
Food and Machinery
A low energy consumption drying device based on integration of membrane distillation and liquid desiccant dehumidification was proposed. The basic idea was to transfer the moisture in the material to the liquid desiccant by the dehumidifying-drying unit, and then the moisture absorbed by the liquid desiccant was separated and removed by liquid desiccant regeneration unit. Based on a brief introduction to the structure and principle of the device, an estimation formula for SMER (Specific moisture extraction rate) of the device was given and the SMER of the device can reach 6.36 kg/(kW·h) under typical operating conditions. An experimental device for …
Experimental Study On Descaling Technology Of Typical Freshwater Fish Based On Water Jet, Li Ren-Jie, Meng Xiang-Yi, Zhong Sen-Miao, Lu Jin-Shi, Zhang Xu, Tao Xue-Heng
Experimental Study On Descaling Technology Of Typical Freshwater Fish Based On Water Jet, Li Ren-Jie, Meng Xiang-Yi, Zhong Sen-Miao, Lu Jin-Shi, Zhang Xu, Tao Xue-Heng
Food and Machinery
Taking crucian as the test object, and the main factors are the jet pressure, jet incident angle, jet target distance, and feed speed of the material plate as the main factors, investigated the trend and extent of the influence of these factors on the descaling rate and fish damage of crucian based on the self-developed water jet descaling experimental bench. The results showed that the optimal conditions for crucian descaling were as followed: jet pressure 10 MPa, incidence angle 60°, target distance 11 cm and feed rate 5 cm/s. Under the conditions, the descaling rate was 89.1%, and the sensory …
Design And Simulation Research And Verification Of A New Bowl-Shaped Jellyfish Spiral Cutting System, Han Chuan-Long, Lu Jin-Shi, Tao Xue-Heng, Feng Yi-Ran, Zhong Sen-Miao, Wang Jing, Guo Shuai
Design And Simulation Research And Verification Of A New Bowl-Shaped Jellyfish Spiral Cutting System, Han Chuan-Long, Lu Jin-Shi, Tao Xue-Heng, Feng Yi-Ran, Zhong Sen-Miao, Wang Jing, Guo Shuai
Food and Machinery
In order to overcome the shortcomings of manually cutting the bowl-shaped jellyfish, with inefficient and costly, high consumption of energy and serious pollution, a new bowl-shaped jellyfish spiral cutting system driven by a servo electric cylinder was designed. The corresponding three-dimensional solid model was constructed by using SolidWorks software and the dynamics simulation of the spiral cutting system was completed by HyperMesh/LS-DYNA software. Moreover, the process of cutting jellyfish with spiral cutter, the process of jellyfish skin failure and knife path formation were dynamically simulated. The change curve of shear force, and the characteristics of stress, strain and dynamic during …
Design And Multi-Body Dynamics Analysis Of Stirring Mechanism Of Cooking Robot, Huang Liang-Hai, Wang Xiao-Long, Li Ya-Ming
Design And Multi-Body Dynamics Analysis Of Stirring Mechanism Of Cooking Robot, Huang Liang-Hai, Wang Xiao-Long, Li Ya-Ming
Food and Machinery
The author firstly designs three kinds of stirring mechanism of a certain type of cooking robot, which are called uniaxial stirring mechanism, forward and backward stirring mechanism,planetary stirring mechanism, and then carries out multi-body dynamic simulation analysis for each kind of design. The spherical particle flow is used to simulate the dish material, and the simulation animation video and the motion trajectory of food particles are obtained. The results show that the planetary stirring mechanism can stir the material most thoroughly.
Study On The Influence Of Meshing Line Of Rotors On Its Performance Of Twin Screw Compressor, Yu Jia-Chuan, He Xue-Ming, Long Ji
Study On The Influence Of Meshing Line Of Rotors On Its Performance Of Twin Screw Compressor, Yu Jia-Chuan, He Xue-Ming, Long Ji
Food and Machinery
According to the distribution of the key points on the meshing line of the rotor profile of the twin screw compressor, the meshing line of the screw rotor profile was divided into five segments. The influence of the change of each segment on the performance parameters of the rotor profile was then discussed in detail. The resulted showed that the area utilization coefficient changes were associated with the area enclosed by the meshing line, which meant the sum of the area between the teeth of male rotor and female rotor changed to be larger. Only three segments of the sealing …
Application Of Motion Control And Adaptive Fuzzy Control In Palletizing Robot, Liu Guang, Wen Hua, Liang Ying
Application Of Motion Control And Adaptive Fuzzy Control In Palletizing Robot, Liu Guang, Wen Hua, Liang Ying
Food and Machinery
The palletizing robot and palletizing system were investigated, and the method of the relative work model was established. The description of both positive and negative kinematics was also established, and the dynamic characteristics were analyzed by Lagrange dynamics. Moreover, an adaptive fuzzy PID control method was proposed to study the dynamic characteristics of the robot. Thereafter, the motion control and adaptive fuzzy control algorithms were simulated, and this controller showed better performance.
Study On Various Factors Compression Test Of Xinfeng Walnut, Liu Kui, Guo Wen-Chuan, Zhu Zhan-Jiang
Study On Various Factors Compression Test Of Xinfeng Walnut, Liu Kui, Guo Wen-Chuan, Zhu Zhan-Jiang
Food and Machinery
The effects of moisture content, loading speed and loading direction on the compression characteristics of walnut were studied in this paper. Xinfeng walnut was compressed under different conditions, and a finite element model was established for walnut extrusion cracking. The largest cracking force was found when the walnut shell was compressed in the direction of thickness, and the largest cracking diffusion area also appeared in this direction, which resulted in removing the whole kernel more easily. Finally, through two kinds of walnut cracking tests of compressing and impact, it was shown that multiple and multi-range impact loading could make the …