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Articles 4021 - 4050 of 5042
Full-Text Articles in Food Processing
Ultrasonic-Assisted Extraction Of Polysaccharide From Ardisia Mamillata And The Evaluation Of Its Antioxidant Activity, Shao Jinhua, Ma Yongqiang, He Fulin, Li Tao, Yang Yuxiang
Ultrasonic-Assisted Extraction Of Polysaccharide From Ardisia Mamillata And The Evaluation Of Its Antioxidant Activity, Shao Jinhua, Ma Yongqiang, He Fulin, Li Tao, Yang Yuxiang
Food and Machinery
A orthogonal test was utilized to optimize the ultrasonic-assisted extraction process of the polysaccharide in Ardisia mamillata based on the single-factor experiment, and its antioxidant activity was evaluated. The results demonstrated that the polysaccharide in Ardisia mamillata could be extracted best by using distilled water as the extracting agent, with the solid-liquid ratio 1∶15（g/mL）was treated , ultrasonated at 65 ℃ for 20 min, for 4 times. Thus the extracting rate of the polysaccharide from Ardisia mamillata was (3.42±0.28) mg/g. Moreover, it was also found that the polysaccharide form Ardisia mamillata possessed good antioxidant activity. It was tested that the polysaccharide …
Study On The Antioxidation Of Chilli Seed In Lard Oil, Shen Wenjiao, He Xinyi, Feng Changlu, Liu Bin
Study On The Antioxidation Of Chilli Seed In Lard Oil, Shen Wenjiao, He Xinyi, Feng Changlu, Liu Bin
Food and Machinery
The antioxidation of chilli seed was investigated in this study. The unmilled and milled chilli seeds, and the ethanol extracts from them, with different concentration were added into lard oil, respectively, and put at (63±2) ℃. The POV value of the lard oil under different period was determined. The regression model between POV and storage time was established, and the induction time and oxidation protection factor were also calculated to evaluate antioxidant capacity of chilli seed. The results showed that the three kinds of chilli seed added in lard had antioxidant capacity. Best antioxidant effect was showed when unmilled added …
Optimization On Extraction Of Capsaicinoids Assisted By Ultrasonic-Microwave Synergistic Extracting, Pang Min, Wang Yuanhui, Liu Qian
Optimization On Extraction Of Capsaicinoids Assisted By Ultrasonic-Microwave Synergistic Extracting, Pang Min, Wang Yuanhui, Liu Qian
Food and Machinery
Paprikas were soaked in 90% (V/V) ethanol to extract capsaicinoids by using ultrasonic and microwave assisted extraction (UMAE). Based on the results of single factor experiments, the optimized extraction condition were gotten with orthogonal tests: the ultrasonic power of 50 W, the microwave power of 240 W, the solid- solvent ratio of 1∶20 (g/mL), the microwave time of 480 s, the paprikas particle size of 80 mesh, and the extracting time twice. The present study obtained an extraction rate of 84.52%. Compared with the conventional water bath extraction method, UMAE has the advantages of shorter extraction time and higher efficiency, …
Enzymatic Extraction Of Bee Pollen Soluble Dietary Fiber And Its Physicochemical Analysis, Zheng Hui, Chen Xiping, You Zhendan, Xia Dongxue, Hu Xi
Enzymatic Extraction Of Bee Pollen Soluble Dietary Fiber And Its Physicochemical Analysis, Zheng Hui, Chen Xiping, You Zhendan, Xia Dongxue, Hu Xi
Food and Machinery
Bee pollen soluble dietary fiber was extracted by enzymatic extraction, and the physicochemical properties was analyzed, while, the products were compared with the bee pollen soluble dietary fiber by acid extraction and alkali extraction. The optimal enzymatic extraction conditions were determined as follows: extraction temperature 50 ℃, extraction time 2 h, enzyme 2.5%, pH 4. Under the conditions, the yield of bee pollen soluble dietary fiber was 4.11%. The product is milk-white powder, and has good smell. The swelling capacity, water holding capacity and the water-solubility of the fiber were 2.03 mL/g, 1.01 g/g, 91.26%, respectively. The bee pollen soluble …
Study On Quality Improving In Flavor Of Finished Summer Green Tea By Dry-Heat Post-Treatment, Li Yan, He Chunlei, Meng Xueli, Pei Xujing, Nie Congning, Li Tao
Study On Quality Improving In Flavor Of Finished Summer Green Tea By Dry-Heat Post-Treatment, Li Yan, He Chunlei, Meng Xueli, Pei Xujing, Nie Congning, Li Tao
Food and Machinery
Taking the finished summer green tea as the raw material, the single factor and orthogonal experiment were conducted by using dry-heat post-treatment to study the optimum technological parameter and effect of the optimum technical on the flavor of summer green tea. The results showed that: dry-heat post-treatment had a significant effect on improving the flavor quality of summer green tea. The optimum technicals were as followed: temperature 55 ℃, water content of unprocessed tea 9% and time 6 h. Sensory of the processed summer green tea showed aging taste disappeared, bitterness decreased and become mellow. In taste composition, the content …
Preparation And Characterization Of The Powder Microcapsules Of Cashew Nut, Chen Sida, Liang Lu, Li Yuting, Yan Xiaoyan, Liu Chengmei, Zhong Yejun, Zhong Junzhen, Xiong Yang
Preparation And Characterization Of The Powder Microcapsules Of Cashew Nut, Chen Sida, Liang Lu, Li Yuting, Yan Xiaoyan, Liu Chengmei, Zhong Yejun, Zhong Junzhen, Xiong Yang
Food and Machinery
Cashew was used to explore its powder microcapsule, and the production methods were optimized as well as its properties and structures represented. The results showed that the emulsion stability was the best, when emulsifier ratio of single and double fat gump to sucrose ester was 1∶2. Moreover, the best emulsifier content was found to be 1.5%, and the best core wall proportion was 1∶1, with the best solid content of 25%. Basic ingredients of microcapsules consisted of proteins ( 12.94%), water (2.38%), carbohydrate （61.57%）, ash （2.45%）， and fat (20.66%). Consequently, the rate of mcrocapsule embedding rate 94.10%, with density 0.68 …
Effects Of Mixed Strains Optimized From Sourdoughs On Quality Of Steamed Bread With Tartary Buckwheat Bran, Wang Xueting, Du Muying, Liao Yuting, He Rui, Li Yuzhu, Zsolt Zalán
Effects Of Mixed Strains Optimized From Sourdoughs On Quality Of Steamed Bread With Tartary Buckwheat Bran, Wang Xueting, Du Muying, Liao Yuting, He Rui, Li Yuzhu, Zsolt Zalán
Food and Machinery
The study was aimed to research the effect of mixed strains optimized from sourdoughs on the quality of steamed bread with tartary buckwheat bran, through sensory quality, texture profile analysis and SPME-GC-MS analysis. The Angel Yeast and Hungary yeast considered as control groups. The results showed that: the order of sensory evaluation was mixed strains (82.2±2.3) > Hungary yeast (80.9±1.3) > Angel yeast (77.1±1.4); the hardness, chewiness, cohesiveness, gumminess and resilience of fermented steamed bread with mixed strains was the best one; on the springiness, the steamed bread fermented with Hungary yeast was the best one. In flavor compounds, Angel yeast, Hungary …
The Effects Of Operating Parameters Of Cigarette Making Machine On Cigarette Yield, Yao Ermin, Shao Ning, Li Xiao, Jiang Xuebing, Zhang Mingya, Xu Xiufeng
The Effects Of Operating Parameters Of Cigarette Making Machine On Cigarette Yield, Yao Ermin, Shao Ning, Li Xiao, Jiang Xuebing, Zhang Mingya, Xu Xiufeng
Food and Machinery
The effects of cigarette machine operating parameters were studied on the yield of different grades of cigarettes. The effects of operating parameters, such as the amount of running silk, yarn feeding and yarn supply and the volume of ticking, on the yield of cigarettes A, B and C were studied by uniform design method. The results were as follows. ① The polynomial models of the running parameters and yield of different grades cigarettes were established. for A grades, it was YA=27.500+0.704X2+1.72E-03X2.081-2.110E-03X1X3; for B grades, it was YB= …
Research Progress On Transport Vibration Damage And Effects Of Fruits On Its Postharvest Physiology Characteristics And Quality, Jiang Bao
Food and Machinery
In our country, truck transport vibration is the important reason which leads to mechanical damage and quality decreased of fruits during storage and transportation. This paper was on the basis of the analysis of the vehicle vibration in the process of truck transportation, and influencing factors, focused on the latest process in effects of transport vibration on postharvest physiology properties and quality of fruits, providing a basis and reference for the reduced transport vibration damage of fruits.
Research Status And Progress Of Fatty Acid Analysis Methods In Beans, Xie Yanhua, Xie Jing, Li Pao, Chen Miaofen, Jiang Liwen, Chen Lili
Research Status And Progress Of Fatty Acid Analysis Methods In Beans, Xie Yanhua, Xie Jing, Li Pao, Chen Miaofen, Jiang Liwen, Chen Lili
Food and Machinery
In this paper, the methods of fatty acid extraction and methyl esterification of beans (the main products are soy food) were reviewed. A variety of physiological functions of fatty acids are described. Moreover the differences of diverse detection methods of fatty acids were analyzed. We hope to provide testing methods for the change of fatty acids in bean product processing, and providing the basis for the development of potential function's in oil and fat products.
Research Progress On Physiological Activities And Its Mechanismof Beta-Cryptoxanthin, Sheng Ran, Sun Zhigao, Huang Qiaojuan, Hao Jingmei, Fang Ming, Yu Fengsheng
Research Progress On Physiological Activities And Its Mechanismof Beta-Cryptoxanthin, Sheng Ran, Sun Zhigao, Huang Qiaojuan, Hao Jingmei, Fang Ming, Yu Fengsheng
Food and Machinery
The beta-cryptoxanthin is composed of multiple prenyl units, belonging to the oxidation of carotenoid. It widely exists in persimmon, citrus and other plants, and also can be produced by microbial fermentation..Based on beta-cryptoxanthin, the mechanism of its absorption and physiological activities was reviewed, in order to provide reference for improving research and clinic application of beta-cryptoxanthin.
Effects Of Glycosidase（R.B1l And R.Cl） On Configuration Of Isoflavones And Improvement Of Flavor In Soybean Milk, Zhou Weijie, Xia Rong, Zhu Chongyang, Pei Jing, Tao Huiyuan, Cheng Yongqiang
Effects Of Glycosidase（R.B1l And R.Cl） On Configuration Of Isoflavones And Improvement Of Flavor In Soybean Milk, Zhou Weijie, Xia Rong, Zhu Chongyang, Pei Jing, Tao Huiyuan, Cheng Yongqiang
Food and Machinery
In order to obtain a higher content of soybean isoflavone glycosides and improve the flavor of soybean milk, two kinds of glycosidase (R.B1L and R.CL) were used in soybean milk processing, then the soybean isoflavones and lavor compounds were detected by high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry technique(GC/MS) respectively. The results showed that the amount of soybean isoflavone aglycones increased 7.289 μg/g, which was 35.7% higher than the control group. While, the bean flavor compounds of hexanal and 2-amyl furan decreased 10.8%, and the aroma compounds of hexyl alcohol and anti-2-nonene aldehyde increased 10.88%. It indicates that …
The Inhibitory Effect On Tyrosinase From P-Coumaric Acid, Ferulic Acid And Feruloylated Oligosaccharides, Yi Jingjing, Ou Shiyi, Dong Yingyan, Chen Qiuming
The Inhibitory Effect On Tyrosinase From P-Coumaric Acid, Ferulic Acid And Feruloylated Oligosaccharides, Yi Jingjing, Ou Shiyi, Dong Yingyan, Chen Qiuming
Food and Machinery
This study investigated the inhibitory effects of p-coumaric acid, ferulic acid and feruloylated oligosaccharides on catalytic activities of tyrosinase by analysising tyrosinase steady state activity and enzyme kinetics. The results showed that the three compounds were found to efficiently inhibit tyrosinase monophenolase activities. The p-Coumaric acid was the strongest inhibitor followed by feruloylated oligosaccharides and ferulic acid, with the IC50 value of 0.75, 3.20, 9.30 mmol/L respectively. Moreover, p-coumaric acid and ferulic acid were found to inhibit the activities of diphenolase with IC50 value of 4.3, 12.7 mmol/L respectively; however, feruloylated oligosaccharides showed no inhibitory effect on diphenolase …
Optimization Of A Microplate Bioassay Method Of Filtering Alpha-Glucosidase Inhibitors, Wang Hongyue, Chen Zhong, Jian Xufeng
Optimization Of A Microplate Bioassay Method Of Filtering Alpha-Glucosidase Inhibitors, Wang Hongyue, Chen Zhong, Jian Xufeng
Food and Machinery
The half inhibitory concentration (IC50) of alpha glucosidase inhibitors was detected based on a microplate assay method in this study in order to find the effective inhibitors for preparing hypoglycemic functional food. The reaction conditions were optimized by the four aspects, i.e., the enzyme concentration, the detection wavelength, the substrate concentration and the reaction time. The results showed that the optimum enzyme concentration ranged from 2.0 mg/mL to 3.0 mg/mL, and waves 520 nm and 492 nm were optimum among the five waves, 405, 450, 492, 520, 630 nm. Moreover, the suitable substrate concentration of sucrose ranged from …
Separation, Screening And Identification Of Special Microbial Strain For Beef Meat Tenderizer, Tan Ya, Li Zongjun, Li Ke, Wu Genliang
Separation, Screening And Identification Of Special Microbial Strain For Beef Meat Tenderizer, Tan Ya, Li Zongjun, Li Ke, Wu Genliang
Food and Machinery
In order to obtain microbial strain suitable for the tenderization of beef, a total of 22 bacteria of producing proteinase were isolated from traditional lobster sauce and wine song in Guizhou. With the screening by using microscopy, analyses of enzyme activities, and TPA value of beef with in treatment of fermented broth, a bacteria defined as D7 was found the optimal strain, and its enzyme activity was 71.68 U/g. The molecular biological identification results showed that it was very similar to Bacillus amyloliquefaciens (JN700123.1), and the similarity was 99%, on the basis of molecular biology identification, using 16S rDNA sequences …
Identification Of 81 Pseudomonas Aeruginosa By Phylogenetic Analysis Of 16s Rrna Gene Sequence, Zeng Xiaocong, Zhou Lu, Su Miaozhen, Han Zhijie, Chen Danxia
Identification Of 81 Pseudomonas Aeruginosa By Phylogenetic Analysis Of 16s Rrna Gene Sequence, Zeng Xiaocong, Zhou Lu, Su Miaozhen, Han Zhijie, Chen Danxia
Food and Machinery
81 Pseudomonas aeruginosa from Guangdong Provincial Institute of Food Inspection were identified by 16S rRNA sequence analysis. The DNA was isolated and the sequences of 16S rRNA gene were amplified by PCR with the bacterium universal primers, and then the PCR products were sequenced after 2% agarose gel electrophoresis. Moreover, the corrected sequences were aligned with Clustal X and the phylogenetic tree was constructed by MEGA5.1. Consequently, the identified results of the 81 strains confirmed their original identification before. On the phylogenetic tree, No. 24-3-QY strain formed a separate branch with No. 100-5-JM strain and No. 106-3-JM strain. No.2 8-1-DW …
Effect Of Gastrodia Elata Bl. Extracts On The Biosynthesis Of Extracellular Proteins In The Grifola Frondosa Under Submerged Fermentation, Huang Zhong, Wu Tianxiang, Yang Zutao, Zhu Sijie
Effect Of Gastrodia Elata Bl. Extracts On The Biosynthesis Of Extracellular Proteins In The Grifola Frondosa Under Submerged Fermentation, Huang Zhong, Wu Tianxiang, Yang Zutao, Zhu Sijie
Food and Machinery
Gastrodia elata Bl. extracts was added into the system of Grifola frondosa submerged fermentation, and then supplement-ation of Gastrodia elata Bl. extracts were optimized according to the biomass and the synthetic quality of extracellular proteins in G. frondosa. The changes of components in G. elata Bl. extracts before and after the sterilization, including gastrodin, p-hydroxybenzyl alcohol, p-hydroxybenzaldehyde, and parishin, were analyzed using HPLC. Moreover, the relationship of this changes between G. elata Bl. extracts and the in G. frondosa fermentation system were also investigated. The results revealed that 7% (v/v) G. elata Bl. extracts could facilitate G. frondosa to grow …
Identification And Quantitative Analysis Of Soybean Milk And Rice Milk In Raw Milk, Fang Xuanqi, Yang Daiming, Liu Lansong, Zhou Binbin, Zhang Juan, Zhang Jihong
Identification And Quantitative Analysis Of Soybean Milk And Rice Milk In Raw Milk, Fang Xuanqi, Yang Daiming, Liu Lansong, Zhou Binbin, Zhang Juan, Zhang Jihong
Food and Machinery
In order to identify raw milk, nonlinear chemical fingerprint of raw milk from different areas and that mixed with different content of soybean milk or rice water was established based on the steady system of “sodium bromate + manganese sulfate + Sulfate + acetone” by using nonlinear fingerprint technique . The raw milk samples that incorporated with soybean milk or rice water could be identified, and the adulterant could be judged by the characteristic information of their nonlinear chemical fingerprint. According to the relationship of parameter information and adulterant content, the relative global content of soybean milk or rice water …
Determination Of Vanillin And Ethyl-Vanillin In Milk Powder By Gas Chromatography-Mass Spectrometry, Zheng Xuan, Huang Jin, Lin Jie, Li Ju, Wei Xiaoqun, Cai Chun, Chen Yanfen, Feng Jieli, Guo Qingyuan
Determination Of Vanillin And Ethyl-Vanillin In Milk Powder By Gas Chromatography-Mass Spectrometry, Zheng Xuan, Huang Jin, Lin Jie, Li Ju, Wei Xiaoqun, Cai Chun, Chen Yanfen, Feng Jieli, Guo Qingyuan
Food and Machinery
A method for determination of vanillin and ethyl-vanillin in milk powder was established by auto headspace solid-phase micro-extraction coupled with gas chromatography-mass spectrometry (GC—MS), and the influence factor were also studied, such as solid phase micro-extraction head, time and temperature of adsorption and desorption. As a result, the limits of determination (LOD) of vanillin and ethyl-vanillin were 0.5 mg/kg. The spiked recovery was between 90.0% and 100%, and the RSD ranged from 1.9%～4.1%(n＝6). This method could eliminate the interference of complicated matrix, conveniently, quickly and exactly, which was applicable for quick determination of vanillin and ethyl-vanillin content in milk powder.
Determination Of Five Kinds Of Clove Phenol Anesthetic In Aquatic Product By Hplc With Molecularity Imprinted Solid Phase Extraction, He Hongjian, Huang He, Gao Ping, Liu Ya, Jiang Zhihong, Cao Zhanhui
Determination Of Five Kinds Of Clove Phenol Anesthetic In Aquatic Product By Hplc With Molecularity Imprinted Solid Phase Extraction, He Hongjian, Huang He, Gao Ping, Liu Ya, Jiang Zhihong, Cao Zhanhui
Food and Machinery
A new method of molecularly imprinted solid phase extraction (MISPE) combined with high performance liquid chromatography (HPLC) was developed for detecting five kinds of clove phenol anesthetic in aquatic product. Using eugenol as template molecule, methacrylic acid as functional monomer, ethylene glycol dimethacrylate as cross linking agent, molecularly imprinted polymers were synthesized by bulk polymerization and made into extraction column. Through the response surface analysis template molecule and functional monomer, crosslinking agent the best proportion was 1∶4. 55∶23. 21, and the recovery rate of these compounds reached 90% by using methanol as solvent and acetic acid solution as eluent. The …
On-Line Determination Of Emergency Pollution Of 3-Nitropropionic Acid In Drinking Water By Flow Injection Chemiluminescence, Zhang Xuhui, Tang Shuze, Deng Xiaoling, Zhu Yao, Wu Shizheng
On-Line Determination Of Emergency Pollution Of 3-Nitropropionic Acid In Drinking Water By Flow Injection Chemiluminescence, Zhang Xuhui, Tang Shuze, Deng Xiaoling, Zhu Yao, Wu Shizheng
Food and Machinery
On the basis of inhibition of chemiluminescence reaction of luminol and potassium permanganate in sodium hydroxide medium by 3-nitropropionic acid, a novel flow-injection chemiluminescence method for determination of 3-nitropropionic acid in drinking water was developed. A linear range for 3-nitropropionic acid determination was 1～150 mg/L. The detection limit of 3-nitropropionic acid was 0.28 mg/L and relative standard deviation (RSD) was 1.9%, with the recovery of 76.5%～93.8%. This online determination system showed a good accuracy and selectivity and has great potential application in rapid detection and alarm of emergency pollution of 3-nitropropionic acid in drinking water.
Design Of Mixing Reaction Tank Of Suitable For High Viscosity Non-Newtonian Fluidossein, Han Dong, Jia Wei, Zhang Chunhui
Design Of Mixing Reaction Tank Of Suitable For High Viscosity Non-Newtonian Fluidossein, Han Dong, Jia Wei, Zhang Chunhui
Food and Machinery
In order to solve the problems of the material of mixed unevenness, low dissolved efficiency, uncontrollable reaction temperature and aroma loss in the conventional mixing reaction tank, a kind of mixing reaction equipment was designed and developed for high viscosity non-Newtonian fluidossein. The mixing reaction equipment consisted of tanks, feeding apparatus, and devices of vertical composite stirring, bottom emulsification stirring and the reaction volatiles collected reflux. This equipment was well suited for high viscosity non-Newtonian fluid to blend, mix and react, and able to achieve multifunctional operation with energy saving. Moreover, it helped to increase the degree of controllability of …
Modeling And Dynamic Simulation Ofautomatic Apple Oriented Mechanism, Ma Yao, Yu Jinghu
Modeling And Dynamic Simulation Ofautomatic Apple Oriented Mechanism, Ma Yao, Yu Jinghu
Food and Machinery
It’s difficult to distinguish between apple damage and fruit axis and calyx in image processing. This results in poor efficiency and accuracy. An apple orientation mechanism is designed, and realized orientation of apple before image acquisition, thereby reducing image processing time. It mainly includes fruit pan, synchronous wheel, fixed caster and drive shaft. ADAMS was used to simulate the orientation process of apple, which verified the feasibility of the mechanism, and sure that the apple will not scratched in the orientation process. In order to improve the efficiency of apple sorting system, the optimal scheme was obtained by simulating the …
Tank Design And Parameter Optimization Of The Fruit Grain Liquid Storage, Yin Shuizhong, Huang Xiaohua, Yang Dizhou, Ding Zhihui, Zhu Can
Tank Design And Parameter Optimization Of The Fruit Grain Liquid Storage, Yin Shuizhong, Huang Xiaohua, Yang Dizhou, Ding Zhihui, Zhu Can
Food and Machinery
A fruit grain beverage liquid mixing tank was designed in this study, including the structure of the cylinder block and the mixing paddle, and related parameters were provided. The numerical simulation was carried out by orthogonal test and FLUENT,to determine the influence degree of the factors, such as the installation height of the agitator, the diameter of the impeller and the rotation speed of the propeller, and the parameters of the stirred tank, were optimized to obtain the optimal parameter solution. Results: The main order of the factors that influenced the stability of the agitator concentration was as follows: the …
Design Of Extrusion-Grind Rubber Fruit Test Sheller, Fan Haiyan, Wang Tao, Wu Di, He Xiaofan
Design Of Extrusion-Grind Rubber Fruit Test Sheller, Fan Haiyan, Wang Tao, Wu Di, He Xiaofan
Food and Machinery
A test sheller for rubber fruit was designed and manufactured according to the principle of extrusion-grind, and it consisted of units of driving and extrusion-grind, the lectrical elements for realizing automatic clockwise and anti-clockwise running of motors, and the frame, etc. Adopting the principle of reciprocating friction and extrusion, the fruit shells were separated under the dual of friction and extrusion pressure. Our results showed that the device could perform well and was, easy to operate, especially, the hulling rate could reach 78.3% by using it. Thus this sheller could be utilized in researches on effects and the mechanism of …
Comparative Study Of The Failure Pressure Between Sealing Liquids And Gas With Magnetic Fluid, Wang Hujun, Li Decai, Zhen Shaobo, He Xinzhi, Wang Siqi
Comparative Study Of The Failure Pressure Between Sealing Liquids And Gas With Magnetic Fluid, Wang Hujun, Li Decai, Zhen Shaobo, He Xinzhi, Wang Siqi
Food and Machinery
Magnetic fluid has been widely used in sealing gas, but sealing liquids with magnetic fluid is still in the research stage. In this paper, the effect of velocity difference on failure pressure was theoretically deduced. The magnetic fluid seal structure was designed and an experiment its rig was set up, and then the seal performances of sealing gas and liquids with magnetic fluid were studied. The results showed that the failure pressures of sealing liquids and gas statically under the same sealing gap were almost the same, and the failure pressure was generally not affected by the speed of the …
The Effects Of Condensing Temperature Changes On Plate Freezer With Two-Phase Ejector, Tian Xiaoyu, Wan Jinqing, Cao Xiaochen, Li Jianguo
The Effects Of Condensing Temperature Changes On Plate Freezer With Two-Phase Ejector, Tian Xiaoyu, Wan Jinqing, Cao Xiaochen, Li Jianguo
Food and Machinery
The working performance of plate freezer with two-phase ejector in different condensing temperature was investigated in this study. Moreover, the effects of condensing temperature on freezing rate and total energy consumption of plate freezer was also studied. Then the entrainment coefficient in stable conditions and explores the effects on Jet pumps were analyzed by changing the condensing temperature. The results showed that when the condensing temperature was 25 ℃, the ejecting coefficient was the highest about 1.58. Compared with 40 ℃and 30 ℃, the energy consumption was lowered by about 3.3% and 10% at 25 ℃, and the freezing time …
Electromagnetic Vibration Quantitative Feeding System Based On Fuzzy Pid, Qi Jun, Gong Dawei, Li Yan, Yan Qingqun
Electromagnetic Vibration Quantitative Feeding System Based On Fuzzy Pid, Qi Jun, Gong Dawei, Li Yan, Yan Qingqun
Food and Machinery
To solve the problem of traditional electromagnetic quantitative feeding system in the process of the open loop control the feeding speed setting arbitrary large, not according to the intelligent control strategy for dynamic adjust the feeding speed, a quantitative electromagnetic vibration feeder was designed based on fuzzy PID control system. Taking the mechanical structure design of the system as a whole, the conduction angle of silicon controlled rectifier was obtained by theoretical analysis and mathematical relationship between amplitude, and according to this, the simplified mathematical model of electromagnetic vibration feeder second order was established. The simulation results show that the …
Optimal Design For Bidirectural Cramp Frame Based On Triz Theory, Du Chunkuan
Optimal Design For Bidirectural Cramp Frame Based On Triz Theory, Du Chunkuan
Food and Machinery
It was well known that standard cramp frame can only clamp a group of workpieces, without the ability to catch many groups of workpieces with related position constraint. To solve this problem, a design solution based on TRIZ theory as well as an inventive principle were proposed in this study. A bidirectural cramp frame with hyperbolic structure was designed, and it could clamp workpieces on both sides. Therefore, the application range and fields of this new kind cramp frame were expanded. Moreover, the bidirectural cramp frame was also analyzed and optimized using the finite element method. Finally, simulation results showed …
Study On The Preserving-Green Technology Of Quick-Frozen ‘Sally’ Komatsuna In Processing, Frozen Storage And Transportation, Cheng Xihong, Zhu Dongxing, Wu Lei, Huang Youru, Zhong Wei, Qi Bin
Study On The Preserving-Green Technology Of Quick-Frozen ‘Sally’ Komatsuna In Processing, Frozen Storage And Transportation, Cheng Xihong, Zhu Dongxing, Wu Lei, Huang Youru, Zhong Wei, Qi Bin
Food and Machinery
To investigate the optimal preserving green measures for export komatsuna during processing, frozen storage and transportation, the ‘Sally’ komatsuna was blanched by the blanching complex solution before quick-freezing process. The preserving green effects of sodium bicarbonate and sodium chloride concentrations in the blanching complex solution, blanching temperature and time were determined as a single factor during frozen pack storage, respectively. Moreover, blanching conditions were also optimized by orthogonal experiment. The results showed that the best preserving-green technology for the export ‘Sally’ komatsuna in processing and frozen storage was blanching them with 0.10% sodium bicarbonate and 0.10% sodium chloride concentrations at …