Research Progress Of Quality Evaluation Technology In Black Tea Fermentation Process,
2023
Anshun College, Anshun, Guizhou 561000, China
Research Progress Of Quality Evaluation Technology In Black Tea Fermentation Process, Xia Chang-Yi, Ran Qian-Song, Li Rui, Liu Ya-Bing
Food and Machinery
Fermentation is the key to the formation of characteristics and quality of black tea. It is very important to evaluate the fermentability of black tea quickly and accurately. In this paper, the application of artificial sensory evaluation technology, biochemical component detection technology, intelligent biomimetic technology, data fusion technology and intelligent biomimetic equipment in the evaluation of black tea fermentation quality in recent years was reviewed, and the development trend of intelligent biomimetic technology in the evaluation of black tea fermentation in the future was prospected.
Simultaneous Determination Of 24 Congeners Of 2- And 3‑Monochloropropanediol Esters And 7 Congeners Of Glycidyl Esters Using Direct Multi-Residue Analytical Lc-Ms/Ms Methods In Various Food Matrices,
2023
Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
Simultaneous Determination Of 24 Congeners Of 2- And 3‑Monochloropropanediol Esters And 7 Congeners Of Glycidyl Esters Using Direct Multi-Residue Analytical Lc-Ms/Ms Methods In Various Food Matrices, Ching-Chang Lee, Bo-Lun Lin, Yi-Wen Huang, Ning-Syuan Hsu, Wei-Hsiang Chang
Journal of Food and Drug Analysis
Glycidyl esters (GEs) and 2- and 3-monochloropropanediol esters (MCPDEs) are emerging process-generated food contaminants known as possible carcinogens. Herein, a direct method is developed and validated for the first time to simultaneously quantify seven GEs and twenty-four MCPDE congeners of processed foods using liquid chromatography-tandem mass spectrometry in a single sequence without ester cleavage or derivatisation, thereby allowing for the simultaneous analysis of numerous food matrices with high accuracy and precision. Our results show levels of GEs varying from
Effect Of High Intensity Ultrasound On Structural And Functional Properties Of Chickpea Protein Isolate,
2023
College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000 ,China ；Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan 450000 ,China ；Henan Collaborative Innovation Center for Food Production and Safety, Zhengzhou, Henan 450000 , China
Effect Of High Intensity Ultrasound On Structural And Functional Properties Of Chickpea Protein Isolate, Wang Yun-Tao, Wang Ying-Juan, Wang Jin-Feng, Bai Yan-Hong, Zhao Dian-Bo
Food and Machinery
In order to improve the functional properties of chickpea protein isolate (CPI), CPI was treated with high intensity ultrasound (HIU) under 450 W for different time(5, 10, 20 min). The emulsifying property of protein was improved obviously by ultrasonic treatment, the solubility of CPI was significantly increased from 7.5 mg/mL to 9.2 mg/mL, and the foaming capacity of CPI was increased to a maximum value of 163.33%. Moreover, the water holding capacity and breaking force of the heat induced CPI gel significantly increased from 58.40% to 75.75%, and 75.7 g to 254.3 g. HIU increased the α-helix content and decreased …
Comparative Analysis Of Nutrient Quality And Polyphenol Composition And Antioxidant Activity Of Different Colored Quinoa,
2023
Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai 810016 , China
Comparative Analysis Of Nutrient Quality And Polyphenol Composition And Antioxidant Activity Of Different Colored Quinoa, Zhao Meng-Meng, Yang Xi-Juan, Dang Bin, Zhang Jie, Zhang Wen-Gang
Food and Machinery
Differences of nutrient content, polyphenol profile and antioxidant activity of quinoa were explored from different grains quinoa of Qingbaili 1 (white grain), Gongza 4 (red grain) and Qingli 2 (black grain). Results showed that there were significant differences in nutritional quality among the three kinds of quinoa (P＜0.05), among them, crude protein content of white quinoa, fat and starch content of red quinoa, and crude fiber, ash and total amino acid content of black quinoa was the highest, respectively. Main type of quinoa pholyphenols was free form and their contents were significantly different (P＜0.05), with the contents of free phenol …
Study Of Tetracycline Detection In Milk By Pre-Incubation Mediated Signal Enhanced Colloidal Gold Method,
2023
Anhui Academy of Science & Technology, Hefei, Anhui 230088 , China ；School of Food and BiologicalEngineering, Hefei University of Technology, Hefei, Anhui 230009 , China
Study Of Tetracycline Detection In Milk By Pre-Incubation Mediated Signal Enhanced Colloidal Gold Method, Chen Ju-Yi, Wu Yu-Han, Yao Li, Xu Zhou, Wu Qian, Chen Wei
Food and Machinery
Based on the traditional colloidal strip, the pre-incubation reaction model was adopted, which was performed in the homogeneous aqueous solution between the colloid gold labeled antibody and analyte. This pre-incubation reaction was used to improve the efficiency of the immunoreaction. The pre-incubation solution was added to the colloidal gold strip for detection. Taking advantage of the pre-incubation model, the pre-incubated products were added to the colloidal gold strip for detection and the sensitivity for tetracycline was improved by 5 folds, as low as 1 μg/L. Changing the reaction model of the traditional colloidal gold strip from the direction adding sample …
The Simultaneous Determination Of Red 2g, Methyl Yellow And Diethyl Yellow In Food,
2023
Hunan Institute of Food Supervision Inspection and Research, Changsha, Hunan 410017 , China ；Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017 , China
The Simultaneous Determination Of Red 2g, Methyl Yellow And Diethyl Yellow In Food, Liang Feng, Xu Wen-Yang, Zhao Hong-Qing, Wang Kai, Liu Yamg-Lun
Food and Machinery
A method for the simultaneous determination of red 2G, dimethyl yellow and diethyl yellow in meat products, soybean products and flavoring was established by HPLC and LC-MS. The samples were extracted by acetonitrile aqueous solution, with solid phase column, and determined by HPLC with diode array detector or UV detector, and then quantified by external standard method. The detection limit of red 2G was 0.5 mg/kg, and those of dimethyl yellow and diethyl yellow were 0.1 mg/kg, with the recovery rate ranging from 80.7% to 91.8% and the relative standard deviation of 3.8%~7.8%.
Uncertainty Evaluation For Determination Of Plumbum In Scallion By Top-Down Control Chart Method,
2023
Xinjiang Uygur Autonomous Region Institute for Drug Control, Urumqi, Xinjiang 830054 , China
Uncertainty Evaluation For Determination Of Plumbum In Scallion By Top-Down Control Chart Method, Yan Shun-Hua, Cheng Xi, Yan Hao, Xia Yi-La, Ai- Ni, Li Hai-Fang
Food and Machinery
According to GB 5009.12—2017, the content of Plumbum was determined under intermediate precision condition of measurement,and the accumulated data was statistically analyzed based on the top-down control chart method. The superposition chart of the value x and EWMA and the chart MR showed that the results conformed to the assumption of normality and independence. The uncertainty of Plumbum in scallion was 0.20 mg/kg.
A Review On The Connotation And Realization Of Modernization Of Food Safetycontrol Ability From The Perspective Of Social Co-Governance,
2023
College of Economics and Management, Northeast Forestry University, Harbin, Heilongjiang 150040 , China
A Review On The Connotation And Realization Of Modernization Of Food Safetycontrol Ability From The Perspective Of Social Co-Governance, Qin Li, Song Meng-Zhe
Food and Machinery
Social co-governance is an important prerequisite for the modernization of food safety governance capabilities. On the basis of sorting out the relevant literature at home and abroad, a review is made on the connotation and role of modernization of food safety governance capabilities and social co-governance. The analysis shows that the realization of the modernization of food safety governance capabilities depends on the cooperation of governments, enterprises and society to form a pattern of social co-governance. Although most domestic literatures have focused on food safety governance and social co-governance of food safety, the research on the analysis of modernization of …
Design Of Rock Tea Manipulation System Based On Fuzzy Control,
2023
Department of Mechanical Engineering, Xiamen Institute of Technology, Xiamen, Fujian 361021 , China
Design Of Rock Tea Manipulation System Based On Fuzzy Control, Liu Jiang-Ping, Jin Xin-Yi
Food and Machinery
In order to realize the intelligent control of rock tea processing, reduce the labor intensity and the influence of human factors in the process of manipulate fresh leaves, a control scheme of manipulate fresh leaves based on fuzzy control is proposed. The influence of the environmental factors of temperature and humidity on the quality of rock tea were analyzed, and a fuzzy controller was designed, with the deviation of temperature and humidity as the input parameter and the change value of the process parameter as the output parameter in the expert database. The idea of manual control was simulated, with …
Research On Apple Online Classification Based On Machine Vision,
2023
College of Electrical and Control Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021 , China
Research On Apple Online Classification Based On Machine Vision, Li Qi, Hu Jia-Kun
Food and Machinery
Using CCD camera to dynamically collect real-time images of two sides of the apple, a flood filling + adaptive Ostu threshold segmentation algorithm is proposed to extract the outline of the apple. The minimum outer circle method is used to process the upper surface image of the apple to obtain the fruit diameter of the apple. Rectangular method is used to extract the apple's fruit shape features by processing the apple's side surface image; the image is converted from RGB to HSV space to extract the apple's coloring degree, fruit rust, and scar features, and the classification of the SVM …
Design Of Fast Cherry Defect Detection And Recognition System Based On Fpga,
2023
Beidou High Precision Positioning Service Technology Engineering Laboratory of LiaoningProvince, Dalian University, Dalian, Liaoning 116622 , China ；Environment Sensing andIntelligent Control Key Laboratory of Dalian, Dalian University, Dalian, Liaoning 116622 , China
Design Of Fast Cherry Defect Detection And Recognition System Based On Fpga, Pei Yue-Kun, Gu Yu, Lian Ming-Yue
Food and Machinery
To make the cherry defect detection and identification system meet the real-time requirements, it was proposed to use the convolutional neural network model as the basis and used the SDSoC development platform to complete the design of FPGA for rapid detection and identification of cherry defects. By optimizing data transmission, multiplexing the general matrix multiplication function (GEMM) in the network model and parallelizing the design of the convolution operation, PL-side hardware acceleration was realized. Using the SDSoC platform, a high-level language mapping convolutional neural network model was used on the PS-side, which saved a lot of development time while achieving …
Rapid And Non-Contact Evaluation Of Lipid Oxidation In Fresh Chilled Pork By Near-Infrared Hyperspectral Imaging,
2023
School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003 , China ；College of Grain, Oil and Food, Henan University of Technology, Zhengzhou, Henan 450001 , China
Rapid And Non-Contact Evaluation Of Lipid Oxidation In Fresh Chilled Pork By Near-Infrared Hyperspectral Imaging, He Hong-Ju, Wang Wei, Li Bo, Wang Yu-Ling, Zhu Ya-Dong, Jiang Sheng-Qi, Ma Han-Jun, Chen Fu-Sheng
Food and Machinery
The lipid oxidation of fresh chilled pork was evaluated rapidly and contactlessly by near-infrared hyperspectral imaging during different storage periods. The Gaussian filter smoothing (GFS), moving average smoothing (MAS), Savitzky-Golay convolution smoothing (SGCS), median filtering smoothing (MFS), multiplicative scatter correction (MSC), standard normal variable (SNV) correction and baseline correction (BC) were used to preprocess the reflectance spectra of the pork samples at 900~1 700 nm. After the seven kinds of pretreatments mentioned above, Partial least squares regression (PLSR) model was established to explore the quantitative relationship between spectral data and the 2-thiobarbituric acid (TBA) value. As a result, the GFS-PLSR …
Optimization Of Aqueous Enzymatic Extraction Process Assisted By High-Temperature Alkaline Liquor Cooking And Steam Explosion For Peony Seed Oil And Its Quality Analysis,
2023
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000 ,China
Optimization Of Aqueous Enzymatic Extraction Process Assisted By High-Temperature Alkaline Liquor Cooking And Steam Explosion For Peony Seed Oil And Its Quality Analysis, Wang Xin, Meng Yu-Qian, Xu Bao-Cheng, Luo Deng-Lin, Fu Yuan-Zhe, Li Meng-Jie, Wei Yu-Hua, Jiao Yu-Man
Food and Machinery
To obtain a higher yield and high quality of peony seed oil, unshelled peony seeds were pretreated with high-temperature alkaline liquor cooking and steam explosion, and the parameters were also optimized. The results were as follows. Firstly, peony seeds were subjected to cook at 105 ℃ for 40 min in an alkaline liquor with the concentration of sodium bicarbonate being 0.05 mol/L, and the material-liquid ratio (g/mL) was 1∶5. Then the precooked peony seeds were further processed by steam explosion with a pressure of 0.3 MPa, holding for 30 s. After pretreating, the enzymolysis efficiency of peony seed powder by …
Study On The Hypolipidemic Function Of Noni Wine,
2023
Qianjin Pharmaceutical Co., Ltd., Zhuzhou, Hunan 412007 , China
Study On The Hypolipidemic Function Of Noni Wine, Li Xiao-Juan
Food and Machinery
Established a mouse model of hyperlipidemia. The male mice were divided into blank control group, low fat group and high fat group, and the low dose, medium dose, high dose of Noni wine. Serum concentrations of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), respiratory exchange ratio (RER), were measured after 90 days of feeding. The results showed that medium dose and high dose can effectively reduce the body weight or body weight gain of the obese mice, and the testis fat rate, renal fat rate or body fat rate decreased. The serum TC content, …
Effect Of Salt Amount On The Quality Of Chimonobambusa Quadrangularis Shoots Dried By Salt Boiling,
2023
College of Biology and Agriculture, Zunyi Normal College, Zunyi, Guizhou 563006 , China
Effect Of Salt Amount On The Quality Of Chimonobambusa Quadrangularis Shoots Dried By Salt Boiling, Lv Chao-Yan, Gao Zhi-Xi, Liu De-Fen, Jiang Qi, Wang Mi, Ma Yun-Fei, Cai Chun
Food and Machinery
Different amounts of salt (10%, 15%, 20%, 25%, and 30%) were set to cook Chimonobambusa quadrangularis shoots. The effects of salt amount on total sugar, reducing sugar, soluble protein, free amino acid, NaCl, nitrite, as well as moisture content, rehydration ratio, color, sensory score, were studied. The results showed that the water content decreases with the increase of boiling time, showing the salt amount dependent. The rehydration rate increased with the rehydration time, and when it basically stops increasing, the rehydration ratio was 10%＞15%＞20%＞30%＞25% in descending order. The total sugar, reducing sugar, soluble protein, and free amino acid content all …
Optimization Of Aluminum-Free Process For Sweet Potato Powder Producing,
2023
Guizhou Institute of Integrated Agricultural Development, Guiyang, Guizhou 550009 , China
Optimization Of Aluminum-Free Process For Sweet Potato Powder Producing, Shi Bin, Li Yong-Fu, Long Ming-Xiu, He Yang-Bo, Tian Zhu-Xi, Liang Qian
Food and Machinery
The sweet potato starch was modified by isoamylase, and the natural polysaccharide was used instead of alum as additive to study the process of making sweet potato powder without alum. Moreover, several key factors including water quantity, heating temperature, polysaccharide addition amount and aging time were optimized. The effects of different conditions on the properties of sweet potato starch were examined by using gelatinization characteristic value, gel properties, cooking properties, shear force, breaking rate and tensile force of sweet potato starch as indexes. The results showed that isoamylase could increase amylose content and enhance starch gel properties, and guar gum …
Effects Expansion Process On Tobacco Quality,
2023
China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang, Hebei 050000 , China
Effects Expansion Process On Tobacco Quality, Chong Li-Min, Lu Yuan, Jiang Guang
Food and Machinery
To analyze the chemical composition and aroma composition of tobacco before and after expansion in order to develop a carbon dioxide expansion process for producing high-quality tobacco. The influence of different carbon expansion technology conditions on the physical processing quality and sensory quality of expanded tobacco was determined and the trend of change was determined by the single factor test method. After different temperature of carbon dioxide expansion, HT treatment and drying, the variation trend of tobacco aroma composition and sensory quality were basically the same, but the variation trend of tobacco aroma composition and sensory quality decreased more obviously …
Recent Advances In Microbial Pectinase,
2023
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Recent Advances In Microbial Pectinase, Yang Tong-Xiang, Wu Kong-Yang, Bai Yun-Fei, Chen Jun-Liang, Wan Su-Yan, Yang Ru-Meng
Food and Machinery
This review covered the advances in the screening of microbial pectinase, breeding technology, some factors affecting pectinase production, enzymatic properties, immobilization, and the development prospects of microbial pectinase were outlined.
Simultaneous Determination Of 8 Adipate Plasticizers In Infant Formula By Isotope Dilution-Gas Chromatography-Mass Spectrometry,
2023
Fujian Inspection and Research Institute for Product Quality, Fuzhou, Fujian 350002 , China ；National Quality Supervision and Testing Center for Processed Food, Fuzhou, Fujian 350002 , China
Simultaneous Determination Of 8 Adipate Plasticizers In Infant Formula By Isotope Dilution-Gas Chromatography-Mass Spectrometry, Yong-Hui Huang
Food and Machinery
A method was developed for the simultaneous determination of 8 adipate plasticizers in infant formula by isotope dilution-gas chromatography-mass spectrometry (GC-MS). With the infant formula sample completely dissolved in water, n-hexane was used as the extraction solvent. After ultrasonic extraction, qualitative and quantitative analysis were carried out by GC-MS in selected ion monitoring modes. The correlation coefficients (R2) of 8 adipate plasticizers were over 0.999, The limits of detection (LODs) were 0.08~0.12 mg/kg and the limits of quantification(LODs) were 0.2~0.4 mg/kg. The average recoveries of 8 adipate plasticizers in milk powder were ranged from 94.8% to 103.3%. In …
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 …
