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Articles 841 - 870 of 4798
Full-Text Articles in Food Biotechnology
Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang
Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang
Food and Machinery
To investigate the preservation effect of chitosan composite coating on refrigerated mantis shrimps,taking the mantis shrimp as the subject, the chitosan, vitamin C, and corn starch as the coating materials, and the sensory evaluation, total colony (TVC), pH, volatile base nitrogen content (TVB-N), thiobarbituric acid (TBA) as the investigation index, the effects of chitosan-Vc-corn starch composite coating on mantis shrimps was studied. Results: the chitosan-VC-corn starch composite coating group was effectively delayed the increase of the TVC, pH value, TVB-N value and TBA value of mantis shrimp samples , and the effect was better than that of the control group …
The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang
The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang
Food and Machinery
The fruit of Jiefang zhong loquat was fumigated with 10, 20, 50 μmol/L MeJA for 8 hours. The effects of MeJA treatment on the postharvest quality of loquat during (4±1) ℃ cold storage were studied by measuring the respiratory intensity, weight loss rate, ethylene release rate, decay rate and TSS, total sugar, VC and TA content. The results showed that 20 μmol/L MeJA fumigation inhibited the respiratory intensity, reduced the weight loss rate and ethylene release rate in the early stage, maintained the content of total sugar, VC and TA, TSS content in the late stage. Based on the concentration …
Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu
Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu
Food and Machinery
In view of the current situation that most of apple sorting in China is still manually screened, a rapid detection method is proposed for apple defects based on machine vision. According to the number of defect candidate areas, the preliminary judgment of apples is completed, and the weighted correlation vector machine is used to further judge the defective apples. The effectiveness and accuracy of the proposed method are verified by experiments. The experimental results show that the recognition accuracy of this method for 1 000 test samples is 99.1%, and the detection accuracy of various defects is high.
Optimization Enzymatic Preparation Process And Antioxidant Activity Of Sheep Bone Polypeptide, Xiao-Ye Li, Zhen Zhang, Qiong Wang, Xue-Qi Wang
Optimization Enzymatic Preparation Process And Antioxidant Activity Of Sheep Bone Polypeptide, Xiao-Ye Li, Zhen Zhang, Qiong Wang, Xue-Qi Wang
Food and Machinery
Herein, the enzymatic hydrolysis polypeptide solution with antioxidant activity was prepared by enzymatic hydrolysis with alkaline protease using sheep bone powder as raw material. Taking hydrolysis degree as index, response surface optimization was carried out on the basis of single factor tests of enzymolysis time, enzymolysis temperature, enzyme dosage and enzymolysis pH. Taking sheep bone meal solution which has not been hydrolyzed by alkaline protease as the control group, the antioxidant capacity of the hydrolysate was determined. The results showed that the highest degree of hydrolysis of alkaline protease was (28.36±0.02)% when the enzymolysis time was 5 h, the enzymolysis …
Optimization Of Ultrasonic-Assisted Extraction For Polyphenols From Perilla Leaves By Polyethylene Glycol And Its Antioxidant Activity, Qiao-Mei Ru, Guo-Ping Ren, Qiong Hu
Optimization Of Ultrasonic-Assisted Extraction For Polyphenols From Perilla Leaves By Polyethylene Glycol And Its Antioxidant Activity, Qiao-Mei Ru, Guo-Ping Ren, Qiong Hu
Food and Machinery
On the basis of single factor experiment, the concentration of polyethylene glycol, liquid/solid ratio, ultrasonic power and extraction time were optimized by Box-Behnken response surface analysis. Result: The results showed that the optimal extraction conditions were concentration of polyethylene glycol 68%, liquid/solid ratio 46∶1 (mL/g), ultrasonic power 157 W and extraction time 67 min. Under these conditions, the yield of polyphenols from perilla leaves reached 18.38 mg GAE/g·DW, while the predicted value was 18.21 mg GAE/g·DW, and the accuracy of the model reached 99.08%. Polyphenols from perilla leaves exhibited good antioxidant activity in a concentration-dependent manner. The IC50 of …
Moringa Oleifera Seed Water Extract Protects Alcohol-Induced Movement Disorder In Caenorhabditis Elegans, Ying Peng
Food and Machinery
It was investigated the alleviating effect of water-extracts from Moringa oleifera seeds (MWE) on alcohol damage, and explored the effects of Moringa seeds on the physiological changes of drunk nematodes. Different concentrations of MWE were used to interfere with nematodes drunkenness. Its movement, tissue ethanol concentration, calcineurin and acetylcholinesterase activity were evaluated. The results showed that the intervention concentration of MWE was 10 mg/mL, and the movement trajectory, frequency of head swinging and swallowing frequency of the nematode were significantly improved, compared with the control group. However, no significant difference was found compared to the un-treated group. MWE reduced the …
Purification Of Polyfructose From Jerusalem Artichoke, Chao-Yang Li, Liang-Yu Li, Jing-Jing Diao, Li-Ping Zhang
Purification Of Polyfructose From Jerusalem Artichoke, Chao-Yang Li, Liang-Yu Li, Jing-Jing Diao, Li-Ping Zhang
Food and Machinery
In this study, the Jerusalem artichoke polyfructose was purified by the simulated mobile chromatography (SMC) and sequential simulated mobile bed (SSMB) according to the results of single column chromatographic system, which the parameters of the SMB and SSMB were investigated. Based on the results, the SSMB was the better technology and the optimized process parameters were as follows, feed concentration of 30%, ratio of material to solvent of 1.1∶1.0. Under these conditions, the concentration of the Jerusalem artichoke polyfructose was 17.9%, the purity was 96.9%, and the recovery was 95.8%, which was 17.7% higher than the material.
Optimization Of Ultrasound-Assisted Extraction Process Of Antimicrobial Peptides From The By-Products Of Mytilus Edulis, Yue Zhang, Yu-Xia Yang, Guang-Yu Shi, Xin-Zhi Zhao, Yuan-Bo Pan, Qiong-Yi Xu
Optimization Of Ultrasound-Assisted Extraction Process Of Antimicrobial Peptides From The By-Products Of Mytilus Edulis, Yue Zhang, Yu-Xia Yang, Guang-Yu Shi, Xin-Zhi Zhao, Yuan-Bo Pan, Qiong-Yi Xu
Food and Machinery
The use of ultrasonic-assisted acetate extraction to improve the efficiency of the conventional acetate extraction technique with the aim of extracting antimicrobial peptides from Mytilus edulis by-product using acetate solution was investigated. Based on the single factor experiment, response surface methodology was used to optimize experimental conditions for extraction of antimicrobial peptides. The optimum extraction conditions for maximum antimicrobial peptide yield were established to be ultrasonic power of 200 W, acetate concentration of 0.8%, liquid-material ratio of 6∶1 (mL/g), and ultrasonic extraction time of 16 min. Under abovementioned conditions, the yield and the zone of inhibition against Staphylococcus aureus were …
Process Optimization Of Vacuum-Frying Combined With Vacuum-Microwave Drying In Producing Shiitake Mushroom Chips, Ai-Qing Ren, Shan Deng, Xiao-Xian Tang, Zheng-Hua Duan
Process Optimization Of Vacuum-Frying Combined With Vacuum-Microwave Drying In Producing Shiitake Mushroom Chips, Ai-Qing Ren, Shan Deng, Xiao-Xian Tang, Zheng-Hua Duan
Food and Machinery
Vacuum-frying combined with vacuum-microwave drying was used to dry shiitake mushroom chips, and the process parameters were optimized. The results showed that the critical factors selected for the investigation were fried at 80 ℃ for 18.6 min, with vacuum pressure 0.095 MPa, and then dried with microwave vacuum degree 0.095 MPa, microwave power density 2.0 W/g, and dehydration to moisture content of 5%. It was verified that the experimental oil content and breaking force of products under this condition were 15.18% and 710.35 g, which were close to the predicted values (15.09% and 704.91 g). Compared with vacuum-frying, the breaking …
Research On Process Optimization And Quality Of Alkali Soaking And Steam Fixing For Golden Matcha Green Protection, Ying Lu, Yong-Sheng Tan, Mao-Jun Yao, Qian Yang, Wen Sun
Research On Process Optimization And Quality Of Alkali Soaking And Steam Fixing For Golden Matcha Green Protection, Ying Lu, Yong-Sheng Tan, Mao-Jun Yao, Qian Yang, Wen Sun
Food and Machinery
In this study, golden tea was used as the raw material to optimize the green protection technology in the process of preparing golden matcha by the alkali soaking and steam fixing. Three significant influencing factors were obtained by Plackett-Burman design, including the alkali concentration, alkali soaking time and steam fixing time, and the process optimization was studied by the steepest ascent design and Box-Behnken design. The optimal conditions were as follows: The alkali concentration 0.15%, alkali soaking time 20 min, steam fixing time 92 s, solid-liquid ratio 1∶20 (g/mL), and the thickness of leaves 1 cm. Undercontrol of these conditions, …
Study On Microwave Drying Characteristics Of Instant Arrowhead Slices And Kinetic Model, Xiao-Xian Tang, Zhen-Hua Duan, Ai-Qing Ren, Wei-Wen Duan, Han-Sen Luo, Cheng-Zhen Lin, Li-Ya Meng
Study On Microwave Drying Characteristics Of Instant Arrowhead Slices And Kinetic Model, Xiao-Xian Tang, Zhen-Hua Duan, Ai-Qing Ren, Wei-Wen Duan, Han-Sen Luo, Cheng-Zhen Lin, Li-Ya Meng
Food and Machinery
The microwave drying characteristics of arrowhead slices was researched, and the drying kinetics model was established on the basis of effects of thickness, lay density and microwave power on the microwave drying characteristics of arrowhead were studied. The results show that the microwave drying process of arrowhead slices is mainly characterized by accelerated drying and deceleration, but when the power density was low, the drying rate appeared a constant stage. The greater the thickness and density were, the smaller the change of drying rate it was. The slower the reduction of moisture content was, and the longer drying time it …
Establishment And Detection Of Moisture Prediction Model Of Key Processes Of Cigarette Cutting Process, Zi-Juan Li, Bo Liu, Yang Gao, Jiao-Jiao Chen
Establishment And Detection Of Moisture Prediction Model Of Key Processes Of Cigarette Cutting Process, Zi-Juan Li, Bo Liu, Yang Gao, Jiao-Jiao Chen
Food and Machinery
Taking the loosening and conditioning process, feeding moisture returning process, hot air moistening process and the whole silk making process as the research objects, the artificial neural network and multiple regression modeling method were used to investigate the influence of different modeling methods on the moisture prediction accuracy of each process. moreover, the predicted results were tested experimentally. The experimental results showed that the mean of the absolute value of the prediction error was 0.24% for the loose moisture returning process with multiple regression modeling method. The mean of the absolute value of the prediction error was 0.20% for feeding …
Effect Of Drying Method On The Flavor Of Okra Flower Tea And Its Soup, Er-Bu Na, Xing-Lian Lan, Gui-Wu Wang, Kai-Zheng Huang, Ma-Ju Li, Wei Ran, Song-Lin Xin
Effect Of Drying Method On The Flavor Of Okra Flower Tea And Its Soup, Er-Bu Na, Xing-Lian Lan, Gui-Wu Wang, Kai-Zheng Huang, Ma-Ju Li, Wei Ran, Song-Lin Xin
Food and Machinery
The volatile components of okra flower tea and its soup prepared using different drying methods were tested and analyzed by high throughput time of flight mass spectrometry (GC-TOF-MS), and the components of okra flower tea and its soup were determined. The results showed that 194 volatile compounds were identified in okra flower tea and its soup prepared by using the two drying methods. Among them, organic acids, sugars and amino acids were the main ones. The relative contents of sugars, organic acids, alcohols, amides, esters, sulfonic acids and glycosides in freeze-dried flower tea and its soup were higher than those …
Research Progress Of Heat Treatment In Paddy And Rice Storage And Processing, Ping Zong, Yan Wang, Wei-Guo Wu, Jian-Hao Ren, Na Li, Tao Zhou
Research Progress Of Heat Treatment In Paddy And Rice Storage And Processing, Ping Zong, Yan Wang, Wei-Guo Wu, Jian-Hao Ren, Na Li, Tao Zhou
Food and Machinery
The heat treatment methods commonly used in the storage and processing of paddy and rice are introduced in this paper and the effects to insect pests, sterilization, enzymatic inactivation and quality are summarized.Meanwhile, the negative effects of heat treatment on rice quality and some countermeasures are proposed.
Research Progress On Rapid Pickling Process Of Salted Duck Eggs And Comprehensive Utilization Of Salted Duck Eggs White, Pei-Qing Zan, Yu-Dong Cheng, Yin-Zhe Jin
Research Progress On Rapid Pickling Process Of Salted Duck Eggs And Comprehensive Utilization Of Salted Duck Eggs White, Pei-Qing Zan, Yu-Dong Cheng, Yin-Zhe Jin
Food and Machinery
The technology, processing method and pickling principle of salted egg, and the comprehensive utilization of salted egg white were discussed and analyzed. The advantages and disadvantages of different technologies, including the factors involved in efficiency, economy, environment and operability, etc., were summarized, and their future applications were also prospected.
Research Advance On The Effects Of Solid-State Biotransformation On The Biological Activity Of Plant Food Processing By-Products, Jia-Xu Chen, Ya-Ping Fu, Yao Gao, Yu Xiao
Research Advance On The Effects Of Solid-State Biotransformation On The Biological Activity Of Plant Food Processing By-Products, Jia-Xu Chen, Ya-Ping Fu, Yao Gao, Yu Xiao
Food and Machinery
Based on the recent reports from domestic and foreign researches, this study elaberated plant food by-products processed by solid-state biotransformation for the enzyme production efficiency and its potential applications. In addition, this study also reviewed solid-state biotransformation on the influence of major biological compounds (e.g., phenolics, flavonoids, polysaccharides etc.) and bio-activities of plant food by-products, and prospected its direction for future development.
Research Progress In Microwave-Assisted Extraction Of Polysaccharides, Yong-Shuai Jing, Li-Cong Sun, Wen-Jing Cheng, Dong-Bo Liu, Lan Li, Dan-Shen Zhang, Lan-Fang Wu
Research Progress In Microwave-Assisted Extraction Of Polysaccharides, Yong-Shuai Jing, Li-Cong Sun, Wen-Jing Cheng, Dong-Bo Liu, Lan Li, Dan-Shen Zhang, Lan-Fang Wu
Food and Machinery
This study reviewed the principle and method of microwave-assisted extraction of polysaccharides and the combined applications of microwave-assisted extraction with ultrasonic method, enzyme method, ultrasonic synergistic enzyme method and acid-based solution method, and the related extraction research and application of polysaccharides were prospected.
Screening And Identification Of Two Strains Of Β-Glucosidase Producing Symbiotic Fungi In Martianus Dermestoides And The Mechanism Of Combined Transformation Of Ginsenoside, Liu Fang, Yan-Cheng Wang, Wen-Xiu Ji, Wei-Wei Dong
Screening And Identification Of Two Strains Of Β-Glucosidase Producing Symbiotic Fungi In Martianus Dermestoides And The Mechanism Of Combined Transformation Of Ginsenoside, Liu Fang, Yan-Cheng Wang, Wen-Xiu Ji, Wei-Wei Dong
Food and Machinery
Two strains of fungi producing β-glucosidase were screened and identified from Martianus dermestoides. The conversion of rare ginsenosides and fermentation quality were improved by combined fermentation of the two strains. The dynamic fermentation process was studied, and the mechanism of ginsenoside transformation was clarified. Screening was performed by MRS (aesculin, ferric citrate) medium. Two fungi producing β-glucosidase were identified by 18S rRNA gene amplification. The strains were fermented with total ginsenoside, the fermentation products were analyzed by LC-MS/MS. Two fungi producing β-glucosidase were identified as genus Chaetomium and Aspergillus respectively. The fermentation products of WY1 reacted with total …
Effect Of Different Milling Methods On The Powder Properties Of Wheat Flour, Si-Yu Ma, Xiao-Ling Tian, Xiao-Xi Wang, Wen-Ya Cai
Effect Of Different Milling Methods On The Powder Properties Of Wheat Flour, Si-Yu Ma, Xiao-Ling Tian, Xiao-Xi Wang, Wen-Ya Cai
Food and Machinery
The grains of Yangmai 20 and Xinmai 26 were used as raw materials in this study. The wheat flour with different particle sizes were milled by the Impact mill, the Hammer mill, and the Universal pulverizer. The basic physical and chemical indexes such as moisture and ash content were measured. The flowability parameters were obtained by laser particle analyzer and powder property testing instrument, and the flowability of wheat flour was analyzed by the Carr index method. The results showed that among the three milling methods, the wheat flour milled by the Impact mill had the best flowability, while no …
Effects Of Different Wheat Flour Quality Characteristics On Steamed Bread Quality, Ya-Ping Yong, Cui-Xia Gao, Yan-Ru Wang, Yun-Ling Li, Xiao-Bing Zhu, Jing Su
Effects Of Different Wheat Flour Quality Characteristics On Steamed Bread Quality, Ya-Ping Yong, Cui-Xia Gao, Yan-Ru Wang, Yun-Ling Li, Xiao-Bing Zhu, Jing Su
Food and Machinery
With fourteen kinds of Hetao wheat flour as the research object, the effects of wheat flour quality indexes, stretching indexes and alveograph indexs on steamed bread quality indexes were analyzed by principal component analysis and clustering analysis. The results showed that wet gluten and protein were positively correlated with the elasticity and resilience of steamed bread, and the correlation coefficients were 0.822, 0.791, 0.643 and 0.752, respectively. The alveograph index P value, W value and Ie value were significantly positively correlated with the specific volume of steamed bread (the correlation coefficient was 0.768 and 0.709). The contribution rate of variance …
Detection Method Of Mutton Adulteration Based On Pso-Lssvm And Characteristic Wavelengths Extraction, Tian-Tian Cheng, Ke-Jian Wang, Xian-Zhong Han, Shi Li, Yuan Wang
Detection Method Of Mutton Adulteration Based On Pso-Lssvm And Characteristic Wavelengths Extraction, Tian-Tian Cheng, Ke-Jian Wang, Xian-Zhong Han, Shi Li, Yuan Wang
Food and Machinery
In order to solve the problem of fast detection of adulteration of mutton and pork, the spectral collection of adulterated mutton was carried out by using a multi-spectral instrument, and the reflectivity of samples at the band of 350~1 100 nm was obtained. For data preprocessing, Particle Swarm Optimization (PSO) was used to optimize the Least Squares Support Vector Machine (LSSVM), and a Least Squares Support Vector Machine (PSO-LSSVM) model based on Particle Swarm Optimization was established, compared with Partial Least Squares(PLS), Back Propagation Neural Network (BPNN) and LSSVM models. The result showed that PSO algorithm could effectively optimize LSSVM …
An Uhplc-Ms/Ms Method For Rapid Analysis Of Tea For The Potential Presence Of Illegally Added Flavorings, Zhi-Sen Liang, Yu-Zhen Chen, Lang-Jun Zhou
An Uhplc-Ms/Ms Method For Rapid Analysis Of Tea For The Potential Presence Of Illegally Added Flavorings, Zhi-Sen Liang, Yu-Zhen Chen, Lang-Jun Zhou
Food and Machinery
A qualitative and quantitative method for simultaneous detection of 7 potential presence of illegally-added flavorings, including trans-anethole, coumarin, estragole, lawsone, methyleugenol, pulegone and trans-cinnamaldehyde in tea samples. Tea samples were extracted with acetonitrile-water served as a mixed solvent, subjected to whirlpool oscillation and then diluted properly. After that, anhydrous sodium sulfate, primary secondary amine (PSA) and octadecylsiyl silica gel (C18) were added to the solvent for purification. The centrifugation, the supernatant was filtered over a membrane and separated on a Kinetex C18 column. These 7 target compounds were determined by UHPLC-MS/MS in MRM mode, and quantified utilizing …
Monitoring And Analysis On Microbes In Edible Areca Processing, Wen-Xiang Li, Feng Li, Song-Hang Zhou, Xiao Yuan, Xiong-Wei Huang, Bu-Cheng Xu, Juan Luo
Monitoring And Analysis On Microbes In Edible Areca Processing, Wen-Xiang Li, Feng Li, Song-Hang Zhou, Xiao Yuan, Xiong-Wei Huang, Bu-Cheng Xu, Juan Luo
Food and Machinery
To investigate the sanitary conditions of edible areca processing, improve the quality and safety of products, using spot investigation and lab test method, monitor the sanitary conditions of products and the processing environment in edible areca enterprise. The monitoring data will help the revision of detailed rules for the review of areca production licenses. The result shows, areca nuts storage condition improving and enhance the disinfection of production tools and workers, will effetely control the microbial contamination in production process, ensure the quality of products.
Optimized Model Of Dual-Chain Storage Of Food Supply Chain Data Based On Blockchain, Sheng-Qiao Gao, Xin-Liang Liu, Yan-Ping Gao
Optimized Model Of Dual-Chain Storage Of Food Supply Chain Data Based On Blockchain, Sheng-Qiao Gao, Xin-Liang Liu, Yan-Ping Gao
Food and Machinery
The emergence of blockchain provides a solution of decentralized integration of resources and elimination of information asymmetry for food supply chain, but most of the current solutions are facing performance and storage bottlenecks. In response to this problem, this paper proposes a dual-chain storage optimized model for food supply chain data based on blockchain. The model builds a double-chain structure of the main chain and the digest chain. Nodes can choose the appropriate storage mode according to their needs, which alleviates the problem of block storage expansion. By adopting the improved Delegated Proof of Stake and Byzantine fault tolerance consensus …
The Improvement Of Administrative Penalty Power Under The Framework Of New Food Safety Law Implementation Regulations, Qi Xu
Food and Machinery
The strict legal responsibility and administrative punishment standards specified and set in the new regulations for the implementation of the food safety law are major achievements of the rule of law in implementing the food safety law. At present, the main problems faced by the implementation of the regulations are that the boundary of "punishment to people" is not clear and the application of "excessive punishment is equivalent" is not coordinated. In order to realize "good law and good governance", it is necessary to further standardize the exercise procedure of administrative penalty power and clarify the applicable standards of administrative …
Establishment And Improvement Of Safety Supervision Mechanism Of Online Take-Out Food, Yong-Gang Wang
Establishment And Improvement Of Safety Supervision Mechanism Of Online Take-Out Food, Yong-Gang Wang
Food and Machinery
This paper analyzes the current situation and types of supervision mechanism of online takeout food safety, analyzes the reasons of the problems existing in the mechanism, and perfects the feasibility of China's online takeout food safety supervision mechanism.。
Geographical Origin Traceability Discrimination Of Chongming Rice Wine, Xing Liu, Qai-Cai Zhang, Chun-Xia Yao, Wei-Guo Song
Geographical Origin Traceability Discrimination Of Chongming Rice Wine, Xing Liu, Qai-Cai Zhang, Chun-Xia Yao, Wei-Guo Song
Food and Machinery
Shanghai Chongming rice wine was used as the main research subject in this study. The natural abundance of hydrogen and oxygen stable isotopes (δ2H and δ18O values), mineral elements and free amino acids content were analyzed. The discriminant models of Chongming rice wines were established and the characteristic variables were screened by principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). The results showed that the δ2H and δ18O values, mineral elements and free amino acids content in rice wines from different geographic origins were different, but only δ2 …
Research On The Application Of Digital Signature Technology In The Traceability Of Food Origin, Chun Liu, Zhu-Hong Liu
Research On The Application Of Digital Signature Technology In The Traceability Of Food Origin, Chun Liu, Zhu-Hong Liu
Food and Machinery
Through the introduction of digital signature technology, the specific and different application scenarios of various digital signature technologies were introduced. The basic principles and methods of food origin traceability were also discussed. The application of various digital signature techniques in food origin traceability was investigated, and the accuracy of food origin traceability cases based on different digital signature techniques was compared and studied. The development trend of digital signature technology in the field of food origin traceability was prospected.
Construction Of Public Food Safety Trust Mechanism In The Context Of Information Asymmetry, Qing-Jie Meng
Construction Of Public Food Safety Trust Mechanism In The Context Of Information Asymmetry, Qing-Jie Meng
Food and Machinery
One of the important reasons for the current lack of trust in food safety among the public is the information asymmetry existing in the relevant core stakeholders. The primary prerequisite for building public trust mechanism of food safety is to clarify the rights and obligations of the stakeholders of the judiciary, government, enterprises and the public based on the background of information asymmetry. Based on an overview of the basic theories of public food management, this study discussed the main dilemmas that the current public food safety trust mechanism is difficult to form, and points out the main scopes and …
Control System Of Rice Whitening Unit Based On Bp-Pid Controller Optimized By Pso Algorithm, Qiang Li, Jin Zhou, Yong-Lin Zhang, Shao-Yun Song
Control System Of Rice Whitening Unit Based On Bp-Pid Controller Optimized By Pso Algorithm, Qiang Li, Jin Zhou, Yong-Lin Zhang, Shao-Yun Song
Food and Machinery
Aiming at the problems of poor flow stability among the current rice whitening unit, low single machine efficiency, unbalanced whitening or excessive broken rice caused by overmilling, a rice whitening unit control system based on particle swarm optimization (PSO) optimized BP-PID control was proposed. Using the multi-machine collaborative optimization technology, the flow balance control by adjusting the ratio of the rice bran-removing powder and the matching operating parameters of the online rice whitening machine. The parameters of the PID controller was trained through the BP neural network, a mathematical model for the regulation of the rice whitening unit was established, …