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Articles 41941 - 41970 of 254312

Full-Text Articles in Life Sciences

Packaging Design Of Children's Snack Food Based On Multi-Dimensional Interesting Expression, Li-Li Qiu Feb 2023

Packaging Design Of Children's Snack Food Based On Multi-Dimensional Interesting Expression, Li-Li Qiu

Food and Machinery

On the basis of analyzing the current development of children's snack food and its packaging design, children’s psychological cognitive characteristics during growth were discussed, and the important meanings for innovating packaging design of their snack food according to those characteristics were also put forward. Combined with the information from relevant literature, it was pointed out that the multi-dimensional interesting expression of children's leisure food packaging design should adhere to the basic principles of “safety first, interest and safety considered, and ‘people-oriented’ personalization”. The interesting expression of children's leisure food packaging should be realized through the multi-dimensional expression of color, image, …

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Translation And Expression Of Regional Cultural Elements In Tourism Food Packaging Design, Jiang-Dong Shan Feb 2023

Translation And Expression Of Regional Cultural Elements In Tourism Food Packaging Design, Jiang-Dong Shan

Food and Machinery

In view of the main problems of tourism food packaging at present, this paper points out the important values of introducing regional cultural elements into tourism food packaging design, and elaborates the expression strategies of regional cultural elements in tourism food packaging design from the perspective of theoretical bases, translation processes and existing typical cases, and finally puts forward the development direction of regional cultural symbol innovation design into tourism food packaging in the future, aiming at realizing the "win-win" between spreading regional characteristic culture and promoting the benign development of tourism food.

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Prediction Model Research Of Ssc In Watermelon Based On Deep Learning And Visible/Near Infrared Spectroscopy, Shuang Wu, Guo-Jian Li, Deng-Fei Jie Feb 2023

Prediction Model Research Of Ssc In Watermelon Based On Deep Learning And Visible/Near Infrared Spectroscopy, Shuang Wu, Guo-Jian Li, Deng-Fei Jie

Food and Machinery

In this study, near infrared spectroscopy combined with chemometrics building models to was used to detect the soluble solid contents from watermelon,through four methods, K nearest neighbors regression, Random forest regression, convolution neural network, convolution neural network added residual-block. Some deep learning modules with image processing, coding modules in 1-d ways and apply in Visible/Near-infrared spectroscopy for modeling exploration was used. As a result, deep learning modules showed great potential in Visible/Near-infrared spectroscopy data processing, and CNN model got 0.855 9 correlation coefficient and 0.778 1 °Brix RMSEP in prediction-set. The Res-CNN model achieved 0.893 2 correlation coefficient and 0.710 …

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Study On Key Technologies For Apple Grading Detection Based On Decision Fusion Method, Xue-Jun Li, Hong Cheng Feb 2023

Study On Key Technologies For Apple Grading Detection Based On Decision Fusion Method, Xue-Jun Li, Hong Cheng

Food and Machinery

An apple grading method based on decision fusion of discriminant tree and improved support vector machine was proposed. The method of discriminant tree classification was used to classify fruit diameter, defect area and color, and the particle swarm optimization (PSO) was used to optimize the SVM classification model. The high dimensional features, such as fruit shape, texture and maturity, were used to classify, and the kernel principal component analysis (KPCA) was used to reduce the dimension. While, the concept of decision fusion was introduced to comprehensively evaluate the sample level combined with single feature. The results showed that the method …

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Optimization Of Extraction Technology Of General Flavone From Yunnan Diaphragma Juglandis Fructus And Its Antioxidant Activities And Effects On Lipid-Changed L02 Hepatocytes, Feng Zhang, Ya-Ge Ma, Xi Zhang, Jing-Juan Yang, Sheng-Lan Zhao Feb 2023

Optimization Of Extraction Technology Of General Flavone From Yunnan Diaphragma Juglandis Fructus And Its Antioxidant Activities And Effects On Lipid-Changed L02 Hepatocytes, Feng Zhang, Ya-Ge Ma, Xi Zhang, Jing-Juan Yang, Sheng-Lan Zhao

Food and Machinery

The extraction process of the general flavonoids from Diaphragma juglandis Fructus (DJF) in Yunnan was optimized. and the ability of the general flavonoids extracts to scavenge hydrogen peroxide (H2O2), superoxide anion free radicals (O ·), hydroxyl free radicals (·OH) and DPPH free radicals (DPPH·) and the role of reducing fatty degeneration L02 liver intracellular total cholesterol (TC) and triglycerides (TG) were investigated. The results showed that the best extraction process for general flavonoids from Yunnan DJF was extraction with 55% ethanol at 80 ℃ for 80 min. Under the control of these conditions, the extraction yield …

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Auxiliary Hypoglycemic Effects Of Compound Nutritional Powder On The Type 2 Diabetic Rats, Qing-Hai Sheng, Wei Zhao, Yan-Ju Jia, Zhi-Yong Dai, Ying He, Jing Liu, Li Xu, Jin-Li Long, Jun Wang, Zeng-Ning Li Feb 2023

Auxiliary Hypoglycemic Effects Of Compound Nutritional Powder On The Type 2 Diabetic Rats, Qing-Hai Sheng, Wei Zhao, Yan-Ju Jia, Zhi-Yong Dai, Ying He, Jing Liu, Li Xu, Jin-Li Long, Jun Wang, Zeng-Ning Li

Food and Machinery

To evaluate the auxiliary blood glucose-lowering function of compound nutritional powder made from whole milk powder, erythritol, almond powder, resistant dextrin, polydextrose, inulin, mogroside, etc., on diabetic rats. Establish a rat model of insulin resistance glucose/lipid metabolism disorder, and evaluate the effects of compound nutritional powder on normal rats and insulin resistance glucose/lipid metabolism disorder model rats. The compound nutritional powder had no significant effect on the blood sugar of normal rats; the glucose tolerance index of insulin resistance glucose/lipid metabolism disorder model rats was positive, the blood lipid index was negative, and there was no significant change in insulin …

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Research On The Optimization Of Ultrasonic Assisted Extraction Technology And Antioxidant Activities Of Polyphenols Extracted From Green Leaves Ramie, Xiao-Ting Zhang, Man-Sheng Wang, Hao-Nan Qiu, Feng-Ling Ye, Shi-Qi Zhi, Long Chen, Qiang He, Yan-Zhou Wang, Yi Dong Feb 2023

Research On The Optimization Of Ultrasonic Assisted Extraction Technology And Antioxidant Activities Of Polyphenols Extracted From Green Leaves Ramie, Xiao-Ting Zhang, Man-Sheng Wang, Hao-Nan Qiu, Feng-Ling Ye, Shi-Qi Zhi, Long Chen, Qiang He, Yan-Zhou Wang, Yi Dong

Food and Machinery

In this study, the optimum extraction parameters of polyphenols from leaves of Boehmeria nivea var. tenacissima were optimized, and the antioxidant activity of polyphenols from ramie leaves was evaluated by using gallic acid as a control. Results of polyphenols extraction experiment showed that the ultrasonic power and ultrasonic time have less effect on the amount of polyphenols extraction, and the influence of three factors on polyphenols extraction was ordered as: ethanol concentration (significantly)＞ extraction temperature ＞ solid-liquid ratio. Finally, the optimized polyphenols extraction process parameters were verified and determined as: 1∶33 (g/mL) of liquid-solid ratio, 40% of ethanol concentration and …

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Optimization Of Extraction Conditions And Antioxidant Activity Of Curcuma Longa Polysaccharides And Flavonoids By Response Surface-Satisfaction Function, Min-Na Hou, Shao-Ping Hou, Man-Fang Wu, Shan Wang, Xiu-Juan Peng, Feng Liu, Huan-Huan Yan Feb 2023

Optimization Of Extraction Conditions And Antioxidant Activity Of Curcuma Longa Polysaccharides And Flavonoids By Response Surface-Satisfaction Function, Min-Na Hou, Shao-Ping Hou, Man-Fang Wu, Shan Wang, Xiu-Juan Peng, Feng Liu, Huan-Huan Yan

Food and Machinery

The ethanol concentration, solid-liquid ratio, ultrasonic time and temperature were optimized by response surface-satisfaction function with extraction rate of polysaccharide and flavonoid from Curcuma Longa as response values. The results showed that the optimum extraction conditions of C. Longa polysaccharide and flavonoids were as follows: water as extraction solvent, ultrasonic temperature 50 ℃, material-liquid ratio 1∶22 (g/mL), ultrasound time 20 min. The extraction rate of polysaccharide and flavones were 1.01% and 0.23% respectively, and the satisfactory degree is 0.823 7. The difference between the predicted value was very small, which showed that the extraction process was reliable and feasible. The …

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Optimization Of Debittering Process By Alkali Method And Its Effect On The Quality Of Bitter Intestine, Li Liu, Yan-Jun Huan, Xin-Yue Diao, Fei Ma Feb 2023

Optimization Of Debittering Process By Alkali Method And Its Effect On The Quality Of Bitter Intestine, Li Liu, Yan-Jun Huan, Xin-Yue Diao, Fei Ma

Food and Machinery

Using bitter intestines as the test material, the effects of the addition amount of baking soda and soda, temperature and time of action on the debittering effect of bitter intestines were investigated through a single factor test. On this basis, response surface analysis was used to optimize the baking soda debittering process conditions. The effect of debittering treatment on the quality of the bitter bowel was studied. The results show that the addition amount of baking soda, the action time and the action temperature have an important effect on the removal of bile acids from the bitter intestine. When the …

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Optimization On Fermentation Process Of High Antioxidant Activity Of Malus Doumeri Fruits Beverage, Tian-De Cheng, Qing-Tong Xie, Li-Jun You Feb 2023

Optimization On Fermentation Process Of High Antioxidant Activity Of Malus Doumeri Fruits Beverage, Tian-De Cheng, Qing-Tong Xie, Li-Jun You

Food and Machinery

The comprehensive evaluation model of antioxidant capacity of Malus doumeri fruits beverage was determined by principal component analysis. Based on the antioxidant capacity of fermented beverage of Malus doumeri fruits, the single factor test and the response surface methodology were used to find out optimal fermentation conditions. Results showed that the comprehensive antioxidant capacity of Malus doumeri fruits fermented beverage was F综合=1.214 2×(0.386 2F1+0.241 2F2+0.196 2F3). The optimal fermentation parameters of antioxidant fermented beverage of Malus doumeri fruits were: starting at pH 5.0, fermentation temperature 30 ℃, adding 20 g/100 mL of …

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Effects Of Cut Tobacco Width And Drying Methods On Cigarettes With Different Specifications, Kai-Min Zhou, Ding Ding, Jin He, Yan-Qiong Liu, Kai-Jian Sun, Ke Sheng, Hao-Bo Zhang, Ru-Xin Shu Feb 2023

Effects Of Cut Tobacco Width And Drying Methods On Cigarettes With Different Specifications, Kai-Min Zhou, Ding Ding, Jin He, Yan-Qiong Liu, Kai-Jian Sun, Ke Sheng, Hao-Bo Zhang, Ru-Xin Shu

Food and Machinery

In order to study the effects of cut tobacco width and drying methods for different cigarette sizes on cigarette physical characteristics, mainstream cigarette smoke and cigarette making machine operating conditions, tobacco with cutting width of 0.8, 0.9, and 1.0 mm and drying methods of KLD and HDT were selected for experiments on middle, slim and short cigarette making machines. For the same size cigarettes, cigarette circumference and weight was instant. Results show that: ① Compared to cylinder drying, for the pneumatic drying cigarettes, pressure drop was increased, hardness was increased, and content of loss of tobacco from the ends was …

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Optimization Of Natto With Double-Bacteria Mixed Fermentation, Dan-Ni Zheng, Meng-Ying Wang, Yi-Han Hu, Liang-Zhong Liu Feb 2023

Optimization Of Natto With Double-Bacteria Mixed Fermentation, Dan-Ni Zheng, Meng-Ying Wang, Yi-Han Hu, Liang-Zhong Liu

Food and Machinery

In order to optimize the processing technology of natto, improve the flavor of the product, and to explore the effect of double-bacteria mixed fermentation on the quality of natto, two better strains were screened through the ratio of the diameter of the hydrolytic colonies (C/H), growth curve of the strains, nattokinase activity and volatile base nitrogen content. The single-factor and orthogonal experiments were used to optimize the process conditions of the two-bacteria fermentation of natto, with nattokinase activity and volatile base nitrogen content as the indicator. The optimal fermentation process of natto with two strains is the ratio …

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Research Progress Of Cryogenic Liquid Quick-Freezing And Its Application In The Processing Of Aquatic Products, Xi Zhao, Xue-Peng Li, Jin-Xiang Wang, Wen-Hui Zhu, Yong-Xia Xu, Jian-Rong Li, Ting-Ting Li, Xiao-Hua Guo Feb 2023

Research Progress Of Cryogenic Liquid Quick-Freezing And Its Application In The Processing Of Aquatic Products, Xi Zhao, Xue-Peng Li, Jin-Xiang Wang, Wen-Hui Zhu, Yong-Xia Xu, Jian-Rong Li, Ting-Ting Li, Xiao-Hua Guo

Food and Machinery

The working principle and technical characteristics of cryogenic liquid quick-freezing technology was introduced in this paper, then the research and development of freezing medium was discussed. The current research status, technical issues and the development trend of the application of cryogenic liquid quick-freezing technology in aquatic products processing was mainly summarized and discussed.

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Application Of Microwave Treatment Technology In The Field Of Food Drying, Pan-Pan Liu, Guang-Yue Ren, Xu Duan, Li-Wei Jin, Ying-Min Zhang, Li-Ping Ma Feb 2023

Application Of Microwave Treatment Technology In The Field Of Food Drying, Pan-Pan Liu, Guang-Yue Ren, Xu Duan, Li-Wei Jin, Ying-Min Zhang, Li-Ping Ma

Food and Machinery

Microwave has extremely strong penetrability and highly selective heating of only polar molecules, and its radiation effect can enhance the heat and mass transfer efficiency of moisture in the drying process. Therefore, microwave treatment technology has been widely used in the field of food drying. The mechanism and characteristics of microwave treatment were discussed in this review. Compared with the traditional drying method, the microstructure of materials under microwave treatment has more pores and less collapse, which is conducive to the removal of water, increases the mass transfer rate, reduces the drying energy consumption and improves the storage rate of …

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Application Of Wireless Temperature Sensor In Food Logistics Preservation, Ran Xu, Xi-Long He Feb 2023

Application Of Wireless Temperature Sensor In Food Logistics Preservation, Ran Xu, Xi-Long He

Food and Machinery

Temperature is an important factor that affects the preservation of food logistics, and the quality of food in the process of food logistics. The application research of wireless temperature sensors in food logistics preservation were summarized in this review, from three aspects including different types, installation locations and packaging forms of wireless temperature sensors. The application trend of wireless temperature sensor in food logistics preservation was also predicted.

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Research Progress On The Extraction Of Natural Astaxanthin From Haematococcus Pluvialis, Yan Li, Jing Gao Feb 2023

Research Progress On The Extraction Of Natural Astaxanthin From Haematococcus Pluvialis, Yan Li, Jing Gao

Food and Machinery

Natural astaxanthin has stronger stability, biological activity and safety than chemically synthesized astaxanthin. Haematococcus pluvia-lis is the most important biological source of natural astaxanthin and more attentions have been paid to the extraction of astaxanthin from H. pluvialis. This work focuses on the development methods of cell-wall disruption of H. pluvialis and the extraction of astaxanthin, which can provides a theoretical basis for the efficient extraction and comprehensive utilization of natural astaxanthin from H. pluvialis.

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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 Feb 2023

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.

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Progress On Detection Methods Of Main Mycotoxins In Food, Hang Yuan, Tong-Ying Ding Feb 2023

Progress On Detection Methods Of Main Mycotoxins In Food, Hang Yuan, Tong-Ying Ding

Food and Machinery

This review focused on the situation and toxicity of aflatoxin, deoxynivalenol, and alternaria toxin contaminated food, and the current commonly used mycotoxin detection methods at domestic and abroad were summarized, with the advantages and disadvantages of each method being analyzed and compred. Finally, the development direction of mycotoxin detection method in the future was prospected.

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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 Feb 2023

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 …

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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 Feb 2023

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 …

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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 Feb 2023

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 …

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Extraction Process Optimization Of Saponin From The Leaves Of Camellia Nitidissima Chi And Its Inhibition Of Lipase Activity, Chen Jia-Hui, Wu Xue-Hui Feb 2023

Extraction Process Optimization Of Saponin From The Leaves Of Camellia Nitidissima Chi And Its Inhibition Of Lipase Activity, Chen Jia-Hui, Wu Xue-Hui

Food and Machinery

By using single factor experiment and response surface methods, the effects of ethanol volume fraction, solid-liquid ratio, extraction temperature and time on extracting saponin from the leaves of Camellia nitidissima Chi were discussed, and the inhibitory effect of the extracts on pancreatic lipase was also studied. The optimal extraction conditons for saponin from C. nitidissima Chi were determined as follows: 59% ethanol, 1∶39 (g/mL) as solid-liquid ratio, extracting at 60 ℃ for 124 min. The yield of saponin was 4.82% under the optimized conditions, closing to the predicted result. The research results indicated that the saponin extracted with the mass …

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Development And Quality Evaluation Of Compound Rice Noodles Based On Traditional Recipe For Strengthening Spleen Diet, Zhang Jin-Yao, Tan Wen-Gen, Fan Yu-Bing, Zheng Tao, Zeng Yi-Qiong, Zheng Hui, Yang Yong Feb 2023

Development And Quality Evaluation Of Compound Rice Noodles Based On Traditional Recipe For Strengthening Spleen Diet, Zhang Jin-Yao, Tan Wen-Gen, Fan Yu-Bing, Zheng Tao, Zeng Yi-Qiong, Zheng Hui, Yang Yong

Food and Machinery

In order to improve the nutrition and health quality of traditional rice noodles, a special compound rice noodles was developed, using traditional rice noodles technology based on traditional recipe for strengthening spleen diet "Yang chun bai xue cake". In this study, the influence of the amount of single accessories for the recipe (poria cocos, yam, lotus seed, euryales semen) on the quality of rice noodles was used to determine the composition ratio of compound accessories. The amount of compound accessories, xanthan gum and water in the compound rice noodle formula was optimized, and the texture characteristics, product aging degree and …

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Effects Expansion Process On Tobacco Quality, Chong Li-Min, Lu Yuan, Jiang Guang Feb 2023

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 …

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Detection And Analysis Of Sulfonamides Residues In Meat Poultry In Hunan Province, Jun Xiang, Wan-Li Tang, Hui Liu, Hong-Qing Zhao Feb 2023

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 …

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Evaluation Of Uncertainty In Chemical Analysis Laboratory Using Control Chart, Jing Li, Xin-Xin Xiao, Xian-Jin Guo Feb 2023

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.

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Pitch Design And Simulation Analysis Of Variable Pitch Spiral Structure, Fei-Xiang Li, Xiang-Dong Zong, Yong-Xiang Li, Jun-Hui Fu Feb 2023

Pitch Design And Simulation Analysis Of Variable Pitch Spiral Structure, Fei-Xiang Li, Xiang-Dong Zong, Yong-Xiang Li, Jun-Hui Fu

Food and Machinery

A new design method of spiral structure with equal diameter and variable pitch is proposed to improve the spiral feeding accuracy of wheat flour. Solidworks software is used to establish a three-dimensional model and the wheat flour material is used for discrete element simulation to observe the feeding amount and feed opening of the spiral feed section. The stability of the flow rate is compared with the conventional equal-diameter variable pitch spiral structure. The tests shows that, compared with the existing equidistant spiral structure, the experimental design of the variable pitch spiral feed section is uniformly fed at the same …

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Design Of Industrial Fermentation Measurement And Control System, Li-Ming Qian, Feng Guo, Meng Zha, Wei-Wei Lu Feb 2023

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 …

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Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method, Qian Xi, Zhi-Yong Zhang, Kai Yuan, Dong-Sheng Guo, Ying-Rui Wu Feb 2023

Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method, Qian Xi, Zhi-Yong Zhang, Kai Yuan, Dong-Sheng Guo, Ying-Rui Wu

Food and Machinery

The effects of temperature (5~40 ℃), water content (10.14%~29.55%) and frequency (1~100 kHz) on quinoa capacitance were studied by LCR meter. Based on the multiple regression analysis method, and the optimal excitation frequency (21 kHz) and water content detection model for quinoa water content detection were determined. The minimum system board of MSP430F149 microcontroller, TFT touch-screen, AD5933 impedance measurement chip, self-made concentric circle capacitance sensor and DS18B20 digital temperature sensor were selected to complete the design of the quinoa moisture rapid detector. The accuracy test of the detector showed that the average relative error of quinoa water content test results …

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Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou Feb 2023

Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou

Food and Machinery

Using flow injection analysis technology, online distillation, extraction, and color development, a continuous flow analysis method for rapid determination of volatile phenol residues in fish meat and its products was established. The results showed that the linear range of the established detection method was 0.00~40.00 μg/L, with the correlation coefficient r=0.999 9, the detection limit of the method is 0.030 mg/kg, with the RSD ranging from 0.952% to 6.543% (n=11). The standard recovery rate was 72.000%~90.827%. Compared with the standard method, this method had the advantages of accuracy, efficiency, simplicity, and environmental protection, and was suitable for the promotion and …

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