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Articles 151 - 180 of 659
Full-Text Articles in Food Processing
Production Process Of Microbial Surfactants And Its Application In Food Additives, Sun Maocheng, Chen Xi, Li Huaiwei, Wang Dan, Fu Xiaoyi, Wang Shuran
Production Process Of Microbial Surfactants And Its Application In Food Additives, Sun Maocheng, Chen Xi, Li Huaiwei, Wang Dan, Fu Xiaoyi, Wang Shuran
Food and Machinery
Microorganisms can synthesize a wide range of surface-active compounds with high ability to reduce surface and interfacial surface tension, generally called microbial surfactants. Major types, sources, screening of producing strain, the use of cheap substrates, optimization of fermentation process, separation and purification on microbial surfactants and its application in food additives were reviewed. Finally, present problems during the research were discussed. This study can provide theoretical basis for the industrial production and application of microbial surfactants in food industry.
New Determination Methods Of Acrylamide In Food Products, Wang Zimeng, Lu Dai, Shi Xingbo, Deng Jiehong
New Determination Methods Of Acrylamide In Food Products, Wang Zimeng, Lu Dai, Shi Xingbo, Deng Jiehong
Food and Machinery
Acrylamide (AA) is a kind of neurotoxin and potential carcinogen, formed in heating food treatment, has been aroused extensive attention in all over the word. Accurate determination of AA in complex food system is the first importance to evaluate its harmful effects on human health. In this paper, the disadvantages of traditional determination methods of AA, including liquid chromatography, gas chromotography and their coupling technique, were reviewed. Moreover, the complex of sample pretreatment process, requirement of necessary sample derivatives and professional analyzer, and expensive analytical instruments etc. were focused on. Furthermore, several new determination methods, such as capillary electrophoresis, enzyme-linked …
Ann-Based Electronic Nose System In The Application Of Food Nondestructive Testing, Wan Cihui, Jia Wenshen, Wang Jihua, Wu Nanjing
Ann-Based Electronic Nose System In The Application Of Food Nondestructive Testing, Wan Cihui, Jia Wenshen, Wang Jihua, Wu Nanjing
Food and Machinery
Electronic nose technique is a kind of emerging technology in gas analysis and has been widely applied in agricultural products and food testing, due to the advantages of its rapid response in a short time. In this paper, a number of ANN algorithm were illuminated, and the applications of ANN-based electronic nose system in destructive testing of fruit, meal, tea, milk and wine etc. were reviewed. Finally, the shortcomings of electronic nose technique and ANN algorithm and the development trend of them were also discussed.
Research Advances In Health Functions And Food Development Of Colored Potatoes, Qiu Ju, Liu Peng, Sun Junmao
Research Advances In Health Functions And Food Development Of Colored Potatoes, Qiu Ju, Liu Peng, Sun Junmao
Food and Machinery
This paper analyzed the health benefit of colored potatoes and reviewed the advances in functional food development of colored potatoes. On the basis, the development of functional food and the utilization of colored potatoes were ahead, in order to provide a reference for their intensive processing.
Research Progress On Almond Cracking Technology And Equipment, Yang Zhongqiang, Yang Liling, Yan Shenkun, Liu Kui, Zhu Zhanjiang, Li Zhongxin
Research Progress On Almond Cracking Technology And Equipment, Yang Zhongqiang, Yang Liling, Yan Shenkun, Liu Kui, Zhu Zhanjiang, Li Zhongxin
Food and Machinery
This paper introduced a variety of almond cracking technology, and mainly focus on the structure, working principle and characteristics of existing almond cracking mechanical in China and abroad. Analyzed the current technology research and the existing problems of almond cracking mechanical, and proposed the application prospect. This paper provided a reference for almond cracking machine technique and equipment.
Methods Of Detecting The Content Of Folic Acid In Infant Complementary Food Supplements, Luo Minting, Wu Kegang, Huang Weiqian
Methods Of Detecting The Content Of Folic Acid In Infant Complementary Food Supplements, Luo Minting, Wu Kegang, Huang Weiqian
Food and Machinery
To detect infant complementary food supplements of folic acid, methds of microbiological method, solid-phase-extraction-HPLC and direct-ammonia-extraction-HPLC were utilized respectively. Analyses among the three methods were compared and the most accurate and rapid one was determined. The results showed the direct-ammonia-extraction-HPLC analysis by using the CH3OH-0.05 mol/L KH2PO4 (volum ratio,5∶95; pH 6.3) as mobile phase and controlling the peak time at 6.5 min, and the standard curve coefficient was 0.999 8 with detection limit 0.019 0 mg/L. Compared with the other two methods, this method was simple, rapid, sensitive and reproducible characteristics, and provided an effective theoretical basis to establish method …
A High Precious Gutter Oil Detector Based On Complementary Metal Oxide Semiconductor, Yang Jie, Huang Haishen, Li Yangjun
A High Precious Gutter Oil Detector Based On Complementary Metal Oxide Semiconductor, Yang Jie, Huang Haishen, Li Yangjun
Food and Machinery
Since the different conductivity of gutter oil and edible oil normally result in the different resistivity per unit volume, a linear detection module based on CMOS (Complementary Metal Oxide Semiconductor) was designed, which shorted to ground combined with directly selection the resistor string to divide voltage makes more linear precision voltage divider. Under the action of counting pulse, the count resistor divider compares with the reference voltage to achieve different number of high level, which not only can distinguish gutter oil and edible oil, but also come to the mass fraction of edible oil, which incorporates gutter oil. In the …
Design Of Needle-Typed Moisture Content Detecting Instrument Of Grains, Wang An, Wu Yang, Liu Quan
Design Of Needle-Typed Moisture Content Detecting Instrument Of Grains, Wang An, Wu Yang, Liu Quan
Food and Machinery
In order to enhance the speed and precision of grain moisture content measurement, and to satisfy the need of online detection of drying machinery, a new symmetric needle typed moisture content sensor which direct thrust into the grain was proposed, which was cooperated with high precision testing circuit and optimization algorithm, and the corresponding new equipment was designed. The trial results indicated that the error of paddy moisture content measurement was no more than 1% and the response time was less than 2 s. Through simple parameters setting, this equipment could be applied to measure moisture content of other grains. …
Separation Of Citral From Litsea Cubeba Oil By Phase Transfer Catalysis, Fu Hongjun, Peng Xianglian, Kuang Chuntao, Zhong Haiyan
Separation Of Citral From Litsea Cubeba Oil By Phase Transfer Catalysis, Fu Hongjun, Peng Xianglian, Kuang Chuntao, Zhong Haiyan
Food and Machinery
Randomly methylated- β-cyclodextrin (RM-β-CD) was used as phase transfer catalysis to separate citral from Litsea cubeba oil by addition reaction and hydrolysis reaction. The optimum separation conditions were obtained by single factor experiment design and Box-Behnken experiment design. The purity and yield of citral were 96.50% and 86.60%, respectively, which was gotten under the optimum conditions of reaction time 3.3 h, RM-β-CD amount 0.65% (molar fraction) and reaction temperature 15.0 ℃. Predicted value was in accordance with actual value. This proposed method was used to separate citral from Litsea cubeba oil with convenient and had high efficient advantages.
Progress In Research Of Mycelial Morphology Control Of Filamentous Fungiin Submerged Fermentation, Jiang Xuewei, Li Hao, Yang Chen, Xu Yantao, Luo Xiaoming
Progress In Research Of Mycelial Morphology Control Of Filamentous Fungiin Submerged Fermentation, Jiang Xuewei, Li Hao, Yang Chen, Xu Yantao, Luo Xiaoming
Food and Machinery
Filamentous fungi are widely used in industrial fermentation. Its mycelial morphology is closely combined with objective product yield and fermented liquid viscosity, and it is one of the key factors in the fermentation process control. In this paper, the research progress was reviewed on the mycelia of filamentous fungi in the submerged fermentation,including its morphological characteristics, the analysis and characterization methods, the mechanism of mycelial pellet formation, and the influence of mycelial morphology control in fermentation. Therefore, the author indicated that quantitative description the growth of filamentous fungi was the foundation of precision control on fermentation process.
Research Progress On Preparation Of Nano-Starch And Its Application In The Preparation Of Edible Films, Zhou Yujia, Xiao Qian, Deng Fangming
Research Progress On Preparation Of Nano-Starch And Its Application In The Preparation Of Edible Films, Zhou Yujia, Xiao Qian, Deng Fangming
Food and Machinery
Nano-composite natural polymer based film not only have low energy consumption, ease the pollution to environment and the pressure on the dying up raw material of non-degradable synthetic material, but also realized the sustainable development of resources. Because of the enhancement of nano particles, the composite film shows more unique and excellent properties than conventional edible film, with low cost, rich available, regenerative and less pollution. Reviewed methods on the preparation of nano starch at home and abroad, including the, physical and chemical methods. Described the application in nano-composite edible films briefly, and summarized the researches on the improvement of …
Preparation Of Starch-Graft-Poly (Vinyl Acetate) Nanoparticles And Effect On The Stability Of Astaxanthin, Liu Zhanjun, Li Xiaochun, Geng Xufang, Zhao Zan, Zhao Linlin
Preparation Of Starch-Graft-Poly (Vinyl Acetate) Nanoparticles And Effect On The Stability Of Astaxanthin, Liu Zhanjun, Li Xiaochun, Geng Xufang, Zhao Zan, Zhao Linlin
Food and Machinery
The starch-graft-poly (vinyl acetate) was prepared using potassium diperiodatonickelate (IV) as an initiator. Afterwards, it was produced into nanoparticles containing hydrophobic core and hydrophilic surface in water, using sodium tripolyphosphate as crosslinking agent. Then the nanoparticles loaded with astaxanthin were made by the dialysis method. IR spectra of the starch and the graft copolymer, the average particle size, particle size distribution, and morphology of the nanoparticles loaded with astaxanthin were measured. The stability of nanoparticles loaded with astaxanthin was determined with an acetone solution of astaxanthin as control. The results showed that the stability of the nanoparticles loaded with astaxanthin …
Fmoc-F Hydrogel For Clove Oil Controlled-Release, Zhang Lin, Zhou Tianxiao, Wang Ben, Hao Yayan, Lu Jun
Fmoc-F Hydrogel For Clove Oil Controlled-Release, Zhang Lin, Zhou Tianxiao, Wang Ben, Hao Yayan, Lu Jun
Food and Machinery
Fmoc-F was utilized for embedding of clove oil. The results demonstrated that Fmoc-F hydrogel could prevent the volatilization and achieve the controlled-release of clove oil. The loading efficiency of Fmoc-F gel was 98.69%, much higher than the one achieved with β-cyclodextrin. When pH was above 6.5, the decomposition rate of Fmoc-F hydrogel was less than 9.0%, and this could prevent the volatilization of clove oil. When pH was adjusted from 6.5 to 6.0, the structure of hydrogel began to disaggregate, and the decomposition rate was around 36%. When pH was below 5.0, the hydrogel disaggregated completely. Then the clove oil …
Effects Of Transglutaminase And Additive Agents On Gel Properties Of Pearl Mussel Surimi, Wang Bohua, Long Jiaoli, Lei Song, Tu Qinghui, Duan Lanxin, Yang Pinhong
Effects Of Transglutaminase And Additive Agents On Gel Properties Of Pearl Mussel Surimi, Wang Bohua, Long Jiaoli, Lei Song, Tu Qinghui, Duan Lanxin, Yang Pinhong
Food and Machinery
The influence of TGase and additives on gel hardness, cohesiveness and springiness of mussel surimi after picking pearls was studied. The results showed that the optimal TGase amount was 2%, pH was 7, at 45 ℃ for 1.0 h. The TGase can significantly enhance the texture properties of mussel surimi. The gel Hardness could reach 5 910.647 g, cohesiveness was 0.820 and springiness was 0.914. Additive agents could enhance gel properties as well, the optimal amount of potato starch, egg white and gluten were 6%, 6% and 9% respectively. It provides a theoretical foundation for the optimization of texture properties …
Effects Of Pan-Frying, Frying, Broiling On Eating Quality Of Hengshan Mutton, Li Linqiang, Gao Tianli, Zhang Lan, Liu Yongfeng
Effects Of Pan-Frying, Frying, Broiling On Eating Quality Of Hengshan Mutton, Li Linqiang, Gao Tianli, Zhang Lan, Liu Yongfeng
Food and Machinery
The objective of this study was to evaluate the effects of pan-frying, frying and broiling on eating quality of Hengshan mutton by regulating the cooking time and temperature. Texture analyzer was used to measure the texture profile analysis and shear force, meanwhile color measurement instrument was used to measure meat color. Results showed, for Pan-frying, Pan-fried mutton samples 2 min and 3 min treatments, the hardness, chewiness and resilience significantly were less than that of 4 min treatment (P<0.05), and the shear force was significantly less than 4 min treatment (P<0.05). With the extension of treatment time, the L* value decreased gradually (P<0.05), processed for 2 min and 3 min, the a* value of mutton sample was less than that of 4 min treatment (P<0.05), while b*、c …
Studies On The Effects Of High-Voltage Electric Field On Hot-Air Drying Characteristics And Color Changing Of Apricot, Wang Qinghui, Yan Shengkun, Li Zhongxin, Abulizi Basiti
Studies On The Effects Of High-Voltage Electric Field On Hot-Air Drying Characteristics And Color Changing Of Apricot, Wang Qinghui, Yan Shengkun, Li Zhongxin, Abulizi Basiti
Food and Machinery
The drying characteristics and color changing experiments of apricot were investigated under different drying temperatures, air velocities and high-voltage electric field respectively. The results were as following. ① The drying time was shortened by increasing air temperatures or velocities. ② Weibull function could simulate the drying curves of apricot. The scale parameter (α) related with the temperature and air velocity and decreased with the increasing of either drying temperature or velocity. The shape parameter (β) was depended on the drying method. ③ The moisture effective diffusivity coefficient was 1.88×10-10～3.18×10-10 m2/s, and the activation energy was …
The Impacts Of Trehalose On The Characteristics Of Glutinous Rice Powders, Zhang Yu, Zhang Lilin, Zhang Qiong, Wu Shuangqi, Ma Xuelin, Wu Xiaohong
The Impacts Of Trehalose On The Characteristics Of Glutinous Rice Powders, Zhang Yu, Zhang Lilin, Zhang Qiong, Wu Shuangqi, Ma Xuelin, Wu Xiaohong
Food and Machinery
The glutinous rice powders were used to study the impacts of different trehalose content on the characteristics of glutinous rice powders. The results showed that with the increase of trehalose content, the pasting temperature was not significantly impacted. The peak viscosity, valley viscosity and final viscosity increased at first then decreased and when the content was up to the maximum 1.0%. The thermal stabilities strengthened integrally and with the increased of the content, the thermal stabilities strengthened at first then attenuated. When the content was 1.5%, the thermal stabilities were the strongest. The gelling capabilities attenuated with the increased of …
Establishment Of A Quantitative Real-Time Pcr For Detecting Vvha Gene In Vibrio Vulnificus, Li Dandan, Xu Yigang, Qiu Suoping, Wang Yu, Gao Huijiang, Gao Shenyang
Establishment Of A Quantitative Real-Time Pcr For Detecting Vvha Gene In Vibrio Vulnificus, Li Dandan, Xu Yigang, Qiu Suoping, Wang Yu, Gao Huijiang, Gao Shenyang
Food and Machinery
To establish a rapid assay for Vibrio vulnificus (V. vulnificus) detection, a quantitative real-time PCR (qRT-PCR) method was developed targeting vvhA gene of V. vulnificus . The results showed that the tests for 15 strains of different bacteria by using this method, only the ones of V. vulnificus were positive, indicating high specificity of qRT-PCR. Moreover, the sensitivity of this specific method was 15 CFU/mL. Further stability and reproducibility test results showed that the coefficient of variation of Ct values of four duplicates were less than 2%. In addition, a total 2 positive samples for V. vulnificus were detected from …
Determination Of Ssc Content In Single Grape Based On Nir Combined With Wavelength Selection, Guo Cheng, Ma Yue, Liang Mengxing, Yan Hui
Determination Of Ssc Content In Single Grape Based On Nir Combined With Wavelength Selection, Guo Cheng, Ma Yue, Liang Mengxing, Yan Hui
Food and Machinery
The soluble solid content (SSC), one of the important index for evaluating the qualities, in a single grape were measure real-timely and non-destructively in this study, This might help to improve the management of the fruits as well as prolong their storage time, satisfying the needs of different customers. The near infrared (NIR) spectra of grapes was detected by using a hand-held NIR spectrometer, wavelength ranging from 950 to 1, 650 nm. Based on partial least squares (PLS) data, the prediction model for SSC content in grapes was established. In order to reduce redundancy and uninformative variables while increase prediction …
The Situation And Improvement Of The Public Participation Mechanism Under The Background Of Food Safety Social Co-Governance In China, Li Hongfeng
Food and Machinery
The principle of food safety social co-governance was put forward in the newly revised and implemented China Food Safety Law, which points out the development direction for the food safety governance in China. The public, as the main participant of the food safety social co-governance, is the inevitable choice of the food safety governance in theory and practice. Currently, the atmosphere for the public participation in the food safety social co-governance is also gradually coming into being, but the public participation still is faced with many problems such as the low degree of the organization, lack of interactivity in participation, …
Problems And Countermeasures Of Tourism Food Safety Based On The Industrial Chain, Zhu Songjie
Problems And Countermeasures Of Tourism Food Safety Based On The Industrial Chain, Zhu Songjie
Food and Machinery
Tourism food safety is the important foundation for sustainable development of Tourism. Starting from the tourism food industry chain, this article analyzed the relationship between the tourism food industry chain and tourism food safety by studying the characteristics of complexity, biochemical, and hysteresis of tourism food industry chain. Thus, aiming at the existing problems of tourism food industry chain in our country, such as unbalanced development, asymmetric information, profit distribution imbalance, low degree of the scale, this article put forward the corresponding countermeasures and suggestions for risks and problems of food safety in China, such as forming the interests-coordination mechanism …
Dynamic Characteristics Of Quick Actuating Valve Of Expangding Machine, Ma Li, Sun Guoyou, Fang Shuqi, Bai Jing
Dynamic Characteristics Of Quick Actuating Valve Of Expangding Machine, Ma Li, Sun Guoyou, Fang Shuqi, Bai Jing
Food and Machinery
No abstract provided.
Research Of Designing Compression Equipment With Open Mold And Closed Mold For Potato Pulp Processing, Guo Wenbin, Gao Jingjing, De Xuehong
Research Of Designing Compression Equipment With Open Mold And Closed Mold For Potato Pulp Processing, Guo Wenbin, Gao Jingjing, De Xuehong
Food and Machinery
The purpose of this research was to design and manufacture a multifunctional equipment for processing potato pulp and its mixture with other agroforestry wastes. The equipment combined the methods of compressing with both open and closed mold, considering adequately the densification and dewatering characteristics of potato pulp. During the compressing, the closed and open mold can be converted to each other flexibly by changing the piston of a sleeve. By this means, it is easy to observe and compare the effectiveness of the two methods. Moreover, the densification and dewatering of potato pulp under different conditions were investigated. Finally, the …
Design Of Automatic Steam Control Of Integrated Processing Device For Fish Noodle, Cheng Hong, Jiang Zhigang, Fan Zhuo, Xiang Peng
Design Of Automatic Steam Control Of Integrated Processing Device For Fish Noodle, Cheng Hong, Jiang Zhigang, Fan Zhuo, Xiang Peng
Food and Machinery
A fish noodles integrated processing device, with steam volume controlled automatically, was designed in this study. Using this device, the thickness of fish noodles and operation speed could be detected real-timely. A least square method was used to calculate the corresponding steam volume, and then a smart the intelligent control of steam was realized. Simultaneously, the automatic operation of pressuring, steaming and cutting was integrated, by using motor-driven transmission shaft, and then transmission belt was driven to run fish noodle. The fish noodles device could ensure the quality of fish noodle processing and provide technical support for both the producing …
A Design Of Transfer Robot Based On Electro-Pneumatic Controlling Technologies, Qian Min, Zhang Xingguo
A Design Of Transfer Robot Based On Electro-Pneumatic Controlling Technologies, Qian Min, Zhang Xingguo
Food and Machinery
A type of transfer robot was designed based on electro-pneumatic controlling technologies and module structure combination. Structure of the robot was explained in detail, and the corresponding draw for the working principle of the pneumatic system adopted valve island technology was analyzed. Furthermore, the control program and hardware of the control system were demonstrated. The electro- pneumatic transfer robot integrated the characteristics of cylindrical coordinates and polar (ball) coordinates, it can achieve 5 degrees of freedom movement.
Improvement And Application Of Et22 Pneumatic Separator, Zhang Liangbin, Luo Fuwei, Fan Mingdeng, Xu Dayong
Improvement And Application Of Et22 Pneumatic Separator, Zhang Liangbin, Luo Fuwei, Fan Mingdeng, Xu Dayong
Food and Machinery
To solve the problems of ET22 Pneumatic Separator for high-speed belt machine, which is easy to deviation and pneumatic separator chamber leakage of large amount of material, two methods were put forward. On the one hand, transformed the fixed type of retaining belt into a movable type to ensure side seal, avoided material into high speed belt conveyor main roller and the driven roller caused by high speed belt deviation, on the other hand in the pneumatic separator chamber installed wind guiding device, and the wind was guided to the end of halftone, through the wind on the halftone back …
Improved Design And Application Of Loosening Feeder For Reconstituted Tobacco, Song Weimin, Zhang Jie, Wang Dong, Zhao Yongzhen, Li Chunguang, Yu Guodong
Improved Design And Application Of Loosening Feeder For Reconstituted Tobacco, Song Weimin, Zhang Jie, Wang Dong, Zhao Yongzhen, Li Chunguang, Yu Guodong
Food and Machinery
To solve paper-process reconstituted tobacco loose problem, a reconstituted tobacco feeder with automatic loosening function was designed, which was composed of an automatic loosening device, a control high roller schematic, a silo and an electronic control and security systems. Reconstituted tobacco was conveyed to the automatic loosening device via the feeding belt, the loosened tobacco entered silo discharge beltr, which could be adjusted according to the silo. The results of application showed that there was no obvious tobacco breakage, Compared with the traditional way, the loosen rate and medium rate raised by 0.8 and medium rate 2 percentage points, fragment …
Development Of Man-Machine Interaction System For Product Modeling, Zhao Jing
Development Of Man-Machine Interaction System For Product Modeling, Zhao Jing
Food and Machinery
In view of designing experience and customization demand for the consumer, the man-machine interaction technology is applied in industrial product design and system development. With involute spur gears as a research example, parametric interaction design interface of gear product is developed which utilizing feature modeling, parametric function and secondary development technique of CREO tool. In the Visual Studio compile environment, can not only realized the editing, modification and reconstruction of the gear’s geometry model conveniently and quickly, but also improve the design efficiency and plasticity of the gear product. Through implement process exploring of the gear product’s operational mode of …
Design Of Filter Error Prevention Supervising System, Li Yuliang, Zhu Liming, Qian Yongan, Zhang Lihong, Liu Wanli
Design Of Filter Error Prevention Supervising System, Li Yuliang, Zhu Liming, Qian Yongan, Zhang Lihong, Liu Wanli
Food and Machinery
In order to realize the real-time supervising of filter supply procedure, a filter error prevention system was development, based on WINCC, which integrated the technology of PLC, RFID and OPC. This system could show and supervise the whole procedure by data collection and analysis, realize the comparison of the status between the filter exchange center and the filter in use and transfer the monitoring pages to all terminal distributed nodes. The result showed that this system had realized error prevention of the whole filter applying procedure, and enhanced the level of lean management.
The Designation Of Online Water Quality Monitoring System About The Water Purifier Based On The Internet Of Things, Diao Yifeng, Li Uliping, Chen Can, Yang Peigang, Chen Wei, Chen Qiong
The Designation Of Online Water Quality Monitoring System About The Water Purifier Based On The Internet Of Things, Diao Yifeng, Li Uliping, Chen Can, Yang Peigang, Chen Wei, Chen Qiong
Food and Machinery
The running information of water purification machines, including the temperature, flow rater, inlet pressure and some information related to filter quality of water was collected and analyzed in this study. In order to obtain these data real-timely, an acquisition system using ARM single chip microprocessor was designed based on embedded technology, and it could send the real time data of running state to the management information system in factory and the related users. The results showed that the system has such advantages as good real time, high cost performance and high reliability, therefore it could deal with the present problem …