Evaluation Of Uncertainty In Chemical Analysis Laboratory Using Control Chart,
2023
Chengyang District Product Quality Inspection Center, Qingdao, Shandong 266109 , China
Evaluation Of Uncertainty In Chemical Analysis Laboratory Using Control Chart, Jing Li, Xin-Xin Xiao, Xian-Jin Guo
Food and Machinery
According to the test method of GB/T 5750.6—2006, the cadmium content in drinking water was measured by graphite furnace atomic absorption spectroscopy, and the accumulated data was statistically analyzed based on the Top-down control chart method. The extended uncertainty was 0.30 μg/L (k=2,P=95%). Using Top-down control chart method to assess the uncertainty is statistically rigorous, and has a wide range of application prospects.
Detection And Analysis Of Sulfonamides Residues In Meat Poultry In Hunan Province,
2023
Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410000 , China
Detection And Analysis Of Sulfonamides Residues In Meat Poultry In Hunan Province, Jun Xiang, Wan-Li Tang, Hui Liu, Hong-Qing Zhao
Food and Machinery
To understand the residues of sulfonamides in meat poultry in Hunan, providing basis for expanding the application of detection methods of sulfonamide residues and strengthening the quality and safety supervision of meat poultry products, the ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method was optimized for the simultaneous determination of 10 kinds of sulfonamide residues in meat poultry. The residues of sulfonamides in more than 300 batches of meat poultry samples produced and sold in various regions of Hunan Province were analyzed. The detection results of actual samples showed that the detection rate of trimethoprim was the highest among the …
Geographic Origin Determination Of Millet Based On Near Infrared Spectroscopy Technique,
2023
Department of Life Science, Yuncheng University, Yuncheng, Shanxi 044000 , China
Geographic Origin Determination Of Millet Based On Near Infrared Spectroscopy Technique, Nan Li, Chun-Jie Yang
Food and Machinery
In order to provide a scientific method for the geographic origin determination of millet, a portable near-infrared (NIR) spectrometer was used in combination with other methods, including principal component analysis (PCA), linear discriminant analysis (LDA) and multi-layer perceptron neural network (MLP-NN). The results showed that, for PCA model, samples from different places except Shanxi, Henan and Heilongjiang provinces clustered into different groups significantly. Millet samples from different origins could be effectively discriminated by FLDA and MLP-NN. The MLP-NN model was better than FLDA model in recognition rate. The recognition accuracy of the two models for the predication set were 92.3% …
Research On “Blockchain + Rfid” Enabling Food Traceability Platform,
2023
Department of Information Administration, Guangdong Justice Police Vocational College, Guangzhou, Guangdong 510520 , China
Research On “Blockchain + Rfid” Enabling Food Traceability Platform, Zong-Mei Liu
Food and Machinery
The “Blockchain + RFID” two-in-one collaborative sharing model constructed by blockchain technology and radio frequency identification technology in the era of big data is described. This model uses the alliance chain to build the food traceability system and Go language is used to develop the chain in Fabric Code. Node.js is used to write the client program. The mobile terminal realizes the food traceability query by scanning the code, and the client uses certificate authentication account to query the web page. Through the interconnection of all aspects of food circulation, we can quickly locate responsible parties for food safety incidents.
Design Of Industrial Fermentation Measurement And Control System,
2023
School of Mechanical Engineering, Nantong Institute of Technology, Nantong, Jiangsu 226002 , China
Design Of Industrial Fermentation Measurement And Control System, Li-Ming Qian, Feng Guo, Meng Zha, Wei-Wei Lu
Food and Machinery
In order to improve the quality of products in the fermentation process and increase the output of products and optimize the fermentation process. a set of fermentation process measurement and control system based on SIEMENS PCS7 and Batch formulation system was designed in this study. Moreover, the centralized management of data was realized through MES system and report system. The system consisted of network part, hardware part, software part and data processing part. The double redundant ring network structure was adopted in the network part. The CPU400 redundant structure was adopted in the hardware part. PCS7 and batch were used …
Design Of Tea Baking Temperature Control System Based On Fuzzy Neural Network Pid Control,
2023
Nanjing Vocational College of Information Technology, Nanjing, Jiangsu 210023 , China
Design Of Tea Baking Temperature Control System Based On Fuzzy Neural Network Pid Control, Xing Chen
Food and Machinery
Aiming at the refined requirements of temperature in the process of scented tea baking, a control system composed of fuzzy control, neural network and PID algorithm was proposed to realize the reliable control of temperature and humidity and to achieve the purpose of rapid dehumidification and drying of flowers. The system taken the temperature and humidity error e and error rate ec as input variables for fuzzy processing, established membership function, through fuzzy reasoning and fuzzy production into the output, for PID control system to provide optimal regulatory factor △K, accurate control of the executive unit. The system …
Design And Research Of A Small And Medium-Sized Vacuum Apple Beater With Intermission,
2023
Department of Electrical and Mechanical Engineering, Anhui Vocational College of Grain Engineering,Hefei, Anhui 230011 , China
Design And Research Of A Small And Medium-Sized Vacuum Apple Beater With Intermission, Song Chen, Jun Jiang, Zhong Huang
Food and Machinery
The appearance and taste of the apple pulp is affected by the oxidation and browning of apples exposed to the air, which occur during the production process of small and medium-sized apple pulping machines. In response to this problem, a small and medium-sized intermittent apple vacuum pulper were designed. Based on the technical process of apple pulping, the working principle and basic structures of the apple vacuum pulper are analyzed; the operational process of the machine and its guarantee of "vacuum degassing" were discussed in detail. Experimental validation showed that the designed intermittent small and medium-sized apple vacuum pulper could …
Improvement Of Electrification Of Hand-Made Cigar Machine,
2023
China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei 430040 , China ；Sanxia Tobacco Factory, China Tobacco Hubei Industrial Co., Ltd., Yichang, Hubei 443100 , China
Improvement Of Electrification Of Hand-Made Cigar Machine, Jun-Yao Li, Zi-Xiang Huang, Jian Wang, Qun-Ling Guo, Rong Jian, Tao Chen, You-Zhi Shi
Food and Machinery
This paper improves the traditional cigar machine and configures endogenous mechanical power instead of manual. The SA / TDR63M4 geared motor is selected through theoretical calculation to make the electric cigar machine run steadily. The improved electric cigar machine reduces the labor intensity of staff, the average daily output efficiency can increase by 20.13%, the standard deviation of cigar resistance decreases from 109.816 kPa to 73.542 kPa, and the standard deviation of circumference decreases from 0.613 mm to 0.370 mm, indicating that the electric cigar machine can improve the output efficiency of round-head flat-tailed hand-made cigars and ensure the consistency …
Research And Design Of Portable Chinese Chestnut Opener,
2023
College of Bohai, Hebei Agricultural University, Huanghua, Hebei 061100 , China
Research And Design Of Portable Chinese Chestnut Opener, Chen-Yang Wang, Ya-Kun Cai, Deng-Xin Han, Qing-Qiu Han, Li-Na Jia
Food and Machinery
Based on the current research status of chestnut openers and combined with the existing chestnut openers defects in use, design a household all-inclusive chestnut openers with high safety, high efficiency, easy portability and other characteristics. First, the chestnut was sampled, measured, and analyzed to obtain the geometric parameters; then, in the design of the opener, the cross blade uses a safe and sharp zirconia ceramic blade to optimize the design of the existing opener handle. The silicone anti-skid layer and other components make it have good comfort and fixability. Finally, through the design of the structure and material of the …
Research On Pre-Packaged Food Detection Based On Machine Vision,
2023
Shandong College of Electronic Technology, Jinan, Shandong 250200 , China
Research On Pre-Packaged Food Detection Based On Machine Vision, Wen-Xiu Li, Qiu-Ping Luan
Food and Machinery
In order to improve the detection accuracy of pre-packaged food, a defect detection system based on machine vision was designed. The detection system mainly includes image acquisition module, image processing and analysis module, output execution module and so on. The image processing method was described in detail. The image denoising model based on partial differential equation was used. The defect region was segmented by double threshold segmentation method. Finally, BP neural network was used to classify defects according to circumference, area and roundness. The feasibility and effectiveness of the method ware verified by experiments. The experimental results show that the …
Effects Of 60Co-Γ Ray Irradiation On Sterilization And Quality Of Youtazi,
2023
College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052 , China
Effects Of 60Co-Γ Ray Irradiation On Sterilization And Quality Of Youtazi, A-Qian Shen, Wen-Shu Huang, Tong Li, Shu-Chang Chen, Zuo-Shan Feng, Yu-Jia Bai
Food and Machinery
In order to explore the suitable irradiation range of 60Co-γ ray irradiation on Youtazi, which was adopted 60Co-γ ray irradiation with different irradiation dose to investigate the effects of irradiation dose on microorganism, acid value (AC), peroxide value (POV) and chromatic aberration of Youtazi under different conditions. The results showed that the number of microorganisms in Youtazi decreased with the increase of irradiation dose, and the range of irradiation dose was 3~7 kGy. Irradiation can slow down the increasing trend of acid value in Youtazi during storage, and the higher the irradiation dose, the lower the acid value …
Effects Of Starch, Fat, Protein And Nacl On Antibacterial Activity Of Chlorine Dioxide,
2023
Department of Pharmaceutical and Bioengineering, Zibo Vocational Institute, Zibo, Shandong 255314 , China
Effects Of Starch, Fat, Protein And Nacl On Antibacterial Activity Of Chlorine Dioxide, Qiu-Yun Bi
Food and Machinery
In this paper, the sensitivity of Gram-negative bacteria, Gram-positive bacteria, yeast, fungal spores and Bacillus cereus spores of several food borne microorganisms in the relative humidity of 90% and 0.08 mg/L gaseous ClO2 was studied. The results showed that the resistance of Gram-negative bacteria, Gram-positive bacteria, yeast, fungal spores and Bacillus cereus spores to gaseous ClO2 gradually increased. Through the treatment of gaseous ClO2, the average reduction of microorganism was 0.1~3.5 lg (CFU/cm2). At the same time, the effects of starch, fat, protein and NaCl in food on the antibacterial activity of gaseous ClO …
Effects Of Different Organic Acid Impregnating Treatments On The Quality Of Freeze-Dried Apple Slices,
2023
Food College, Shengyang Agriculture University, Shenyang, Liaoning 110161 , China ；School ofFood Science, Nanjing Xiaozhuang University, Nanjing, Jiangsu 211171 , China
Effects Of Different Organic Acid Impregnating Treatments On The Quality Of Freeze-Dried Apple Slices, Qian-Ju Wang, Ting-Cai Yan, Qiu-Ju Yan, Chun Hua, Feng Zhou, Hai-Ou Wang
Food and Machinery
The fresh-cut apple slices were impregnated with different concentrations (1%, 2%, 3% and 4%) of organic acid including citric acid, ascorbic acid, malic acid and acetic acid. The color, yield, rehydration, deformation rate, texture characteris-tics and microscopic pore structure of freeze-dried apple chips were used as indicators to analyze the effect of different acid immersion on the quality of vacuum freeze-dried apple chips. The results showed that the △E value of freeze-dried apple slices treated with citric acid, ascorbic acid and malic acid increased with the increase of acid concentration, with relatively small △E value treated with acetic acid, …
Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil,
2023
College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai 810016 , China
Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil, Yun-Yun Chen, Jin-Ying Wang, Xing-Rui Wang, Yu-Ze Han
Food and Machinery
In order to improve the quality of flax oil, the conventional hydration method was used to optimize the degumming process conditions and analyze the main physicochemical indexes. Taking the degumming rate as an indicator, the effects of temperature, time, water addition and phosphoric acid addition on the degumming effect of flax seed oil were studied respectively. Optimizing the degumming conditions of flax seed oil based on single factor and Box-Behnken center combination experimental design principle. The results showed that the best process conditions for degumming by conventional hydration method of flax seed oil: the temperature of 63.7 ℃, the time …
Effect Of Roasting On The Flavor And Quality Of Highland Barely Wine,
2023
College of Food Science and Engineering, Beijing University of Agriculture, Food Quality and SafetyBeijing Laboratory, Beijing 102206 , China
Effect Of Roasting On The Flavor And Quality Of Highland Barely Wine, Hai-Qing Yang, Xi-Yu Peng, Liu-Yang Ren, Ying Lv, Shun-Tang Guo
Food and Machinery
In this study, highland barley wine was produced with roasted barley to increase the flavor of the wine. Physical-chemical properties such as pH value, total acid, total sugar, alcohol content of the wine and flavor were determined. The evaluations of acidity, sugar content and sensory of the wine were found increased with roasted barley, and roasting improved the variety of flavor substances for the highland barley wine. Nonanal, phenylethyl alcohol, benzeneacetaldehyde and decanal were determined to be the key flavor substances of the four barley wines (ROAV＞1). Acetophenone and geranylacetone were found to be the modified compounds to barley wines …
Optimization Of Preparation Technology And Structural Characterization Of Tarragon Essential Oil Nanocapsules,
2023
College of Food and Biological Engineering, Henan University of Science and Technology, Luoyang, Henan 471003 , China
Optimization Of Preparation Technology And Structural Characterization Of Tarragon Essential Oil Nanocapsules, Ying Liang, Hui-Yun Zhang, Huai-Bin Kang
Food and Machinery
Chitosan-tarragon essential oil nanocapsules were prepared by ion gelation method. The effects of the mass ratios of tarragon essential oil to chitosan, pH of chitosan solution, and the mass ratio of sodium tripolyphosphate to chitosan on the encapsulation rate of tarragon essential oil nanocapsules were investigated. Box-Behnken experiment design and response surface analysis were used to optimize the preparation process of nanocapsules, and the quadratic regression model was established. The results showed that the optimum preparation process of tarragon essential oil nanocapsules was the mass ratio of tarragon essential oil to chitosan 2∶1, pH=3.5, and the mass ratio of sodium …
Optimization Of The Inhibition Process Of Non-Enzymatic Browning And Nutrition Preservation In Stanuntonia Chinensis Juice,
2023
Zunyi Medical and Pharmaceutical College, Zunyi, Guizhou 563006 , China
Optimization Of The Inhibition Process Of Non-Enzymatic Browning And Nutrition Preservation In Stanuntonia Chinensis Juice, Lin-Yun Cui, Hong-Bo Lou
Food and Machinery
With the inhibition of Non-enzymatic browning in Sta-nuntonia chinensis juice as the main objective, and the nutrition preservation (such as polyphenol preservation rate and ·OH clearance rate) of the juice as the consideration, the response surface method was applied to optimize the process of browning inhibition. First, the plackett-burman (PB) design was applied to screen out three inhibitors with a reliability greater than 95%: L-cysteine, sodium D-isoascorbate and phytic acid. Then, the optimal value range and effects direction were determined by steepest ascent design. Finally, the Box-Behnken Design (BBD) experimental design was used for response surface optimization and the optimal …
Effect Of Three Drying Methods On The Quality Of Taihe Toona Sinensis Bud,
2023
School of Information Engineering, Fuyang Normal University, Fuyang, Anhui 236000 , China
Effect Of Three Drying Methods On The Quality Of Taihe Toona Sinensis Bud, Yan-Hong Liu, Zhang-Ping Xiong, Chun-Yan Ji, Shuang-Fang Li, Sheng-Jie Liu
Food and Machinery
The natural drying, hot air drying at different temperatures and vacuum freeze drying were carried out on the buds of Taihe toon respectively. The changes of nutrient components such as VC, chlorophyll, total flavone and protein and the rehydration performance of Taihe toon buds after drying were determined. The effects of different drying methods on the quality of Taihe toon buds were comprehensively evaluated. In the dry products obtained by vacuum freeze-drying, the retention of VC, chlorophyll, total flavonoids and protein was the highest, which were 74.00 mg/100 g, 14.1 mg/g, 3.50 mg/g, 8.12 mg/g, respectively. …
Construction And Prediction Of Bayesian Network Model Of Relationship Between Process Parameters And Discharge Quality In Loosening And Conditioning,
2023
China Tobacco Yunnan Industrial Co., Ltd., Kunming, Yunnan 650231 , China
Construction And Prediction Of Bayesian Network Model Of Relationship Between Process Parameters And Discharge Quality In Loosening And Conditioning, Jun Tang, Li Tang, Li-Liang Wen, Bang-Hua He, Wen-Qiang Lin, Zhong-Da Zeng, Ning Ma, Bing Zhou
Food and Machinery
The complex relationship between the process parameters and the quality index of loosening and conditioning process was studied, and the network model was established by using Bayesian network analysis method. The results showed that: ① The network model of loosening and conditioning process could well reveal the influence relationship and influence weight of process parameters on the discharge moisture content and temperature. ② The influence degree of process parameters on the discharge moisture content was determined as from high to low, opening of automatic valve for air water mixing ＞ unit time material cumulative measurement ＞ water addition ratio ＞ …
Research Progress On The Extraction Of Plant Polyphenols,
2023
College of Food Science and Technology, Wuhan Polytechnic University, Wuhan, Hubei 430000 , China
Research Progress On The Extraction Of Plant Polyphenols, Fu-Lin Tian, Wen-Jing Huang, Zhan Wang, Xian-Kui Qin, Wang-Yang Shen, Qiao-Yu Cai
Food and Machinery
In this review, the non-mentioned extraction methods of plant polyphenol in the existing research are summarized, including subcritical extraction, low eutectic extraction, and pressurized extraction, etc. The principles, advantages and disadvantages of different extraction methods are deeply analyzed. Moreover, the development direction of plant polyphenol extraction is prospected.
