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Articles 691 - 720 of 4816
Full-Text Articles in Life Sciences
Fast Recognition Method For Betel Nut In Dense Environments Based On Improved Yolo, Dai Yun, Lu Ming, He Ting, Peng Cheng-Wu
Fast Recognition Method For Betel Nut In Dense Environments Based On Improved Yolo, Dai Yun, Lu Ming, He Ting, Peng Cheng-Wu
Food and Machinery
Objective: This paper aimed to improve the accuracy of identification of small individual betel nuts and the degree of automation of betel nut processing plant by combining with deep learning. Methods: In this study, a novel feature extraction network named Mob-darknet-52 was proposed to construct a method of betel nut location and recognition based on improved YOLO algorithm by using multi-scale detection size. Results: the test showed that the proposed method had a detection accuracy of 94.8%, an accuracy rate of 94.5%, a recall rate of 95.1%, and a detection time of 6.679 ms in betel nut classification. Conclusion: The …
Study On Properties Of Polyvinyl Alcohol/Nanocellulose/Pomegranate Peel Polyphenol Composite Antibacterial Films, Li Hui, Tian Jia-Yao, Pang Shan-Shan, Gong Guo-Li
Study On Properties Of Polyvinyl Alcohol/Nanocellulose/Pomegranate Peel Polyphenol Composite Antibacterial Films, Li Hui, Tian Jia-Yao, Pang Shan-Shan, Gong Guo-Li
Food and Machinery
Objective: This study aimed to develop a kind of green antibacterial and antioxidant food packaging film. Methods: Polyvinyl alcohol/nanocellulose crystal/pomegranate peel polyphenol composite antibacterial films were prepared by blending method with pomegranate peel polyphenol as functional active substance, and their properties were characterized. Results: The continuity of the film surface was affected by the addition of pomegranate peel polyphenols. When the addition of polyphenols in pomegranate peel was 5 times the minimum bacteriostatic concentration, the water permeability of the film increased by 28.79%, and the tensile strength, elongation at break, hydrophobicity and light transmittance decreased by 44.97%, 29.37%, 36.36% and …
Analysis Of Main Volatile Aroma Components Of Chicory, Zhang Feng-Mei, Pu Ruan, Wu Li-Jun, Jiang Wei, Tang Shi-Yun
Analysis Of Main Volatile Aroma Components Of Chicory, Zhang Feng-Mei, Pu Ruan, Wu Li-Jun, Jiang Wei, Tang Shi-Yun
Food and Machinery
Objective: To study the main volatile aroma components in chicory extracts. Methods: The volatile components in chicory extracts were analyzed by headspace-solid phase microextraction-gas chromatography-mass spectrometry （HS-SPME-GC/MS）, the content of volatile components was analyzed by semi quantitative method, and the main volatile aroma components were analyzed by volatile component content/sensory threshold value （odor activity value, OAV）. Results: A total of 78 volatile components were detected in the sample. The sequence of volatile components with relative content＞1% was propylene glycol＞5-hydroxymethylfurfural＞acetic acid＞1,2-propanediol dicarboxylate＞formic acid＞1,2-propanediol 2-acetate; The aroma activity values of 24 aroma components were analyzed. The main volatile aroma components with OAV …
Research Progress On The Influence Of Protein On Physicochemical Properties, Microstructures And Digestive Properties Of Starch And Its Application, Zhao Hai-Bo, Sun Chun-Rui, Qiu Hong-Wei, Cui Bo, Cheng Yun-Hui, Chen Ling
Research Progress On The Influence Of Protein On Physicochemical Properties, Microstructures And Digestive Properties Of Starch And Its Application, Zhao Hai-Bo, Sun Chun-Rui, Qiu Hong-Wei, Cui Bo, Cheng Yun-Hui, Chen Ling
Food and Machinery
Starch and protein are two important components in food system. The interactions between starch and protein have important influence on the structure, physicochemical properties of starch and the texture and digestibility of starch-based food. In recent years, the effect of exogenous protein on starch-protein interaction in mixed system and its application have become a hot research topic in the field of food. This article reviews the interaction mode between starch and protein, the effect of protein on physicochemical properties （gelatinization properties, retrogradation properties, rheological properties, thermal properties and texture properties） and microstructure of starch-protein mixed system, summarizes the regulation effect …
Combination Of Hs-Spme-Gc-O-Ms And E-Nose Revealed The Characteristic Aroma Differences Of Watermelon Seeds Under Various Thermal Processing Treatments, Zhang Ru-Ru, Yu Xiong-Wei, Ouyang Hui, Peng Wu, Xu Wei-Jian, Fu Qin-Li, Li Shu-Gang
Combination Of Hs-Spme-Gc-O-Ms And E-Nose Revealed The Characteristic Aroma Differences Of Watermelon Seeds Under Various Thermal Processing Treatments, Zhang Ru-Ru, Yu Xiong-Wei, Ouyang Hui, Peng Wu, Xu Wei-Jian, Fu Qin-Li, Li Shu-Gang
Food and Machinery
Objective: This study aimed to explore the differences in the aroma of watermelon seeds under different thermal processes. Methods: The analysis technics such as Headspace-Solid Phase Micro Extraction-Gas Chromatography-Olfactory-Mass Spectrometry (HS-SPME-GC-O-MS) and Electronic Nose (E-nose) were applied. Results: Thermal processing changed the flavor of watermelon seeds from light fragrance to strong roasted flavor; A total of 18 categories including 115 volatile compounds were detected with the help of HS-SPME-GC-O-MS, among which pyrazines, alcohols and aldehydes accounted for 34.25%, 21.07% and 10.99% of the total volatile compounds, respectively; In addition, 63 volatile compounds were discovered in watermelon seeds after microwave treatment, …
Construction And Research Of Bioreactor Simulation Scale-Up Model, Hu Yi-Wen, Han Fei-Fei, Jin Kui-Qi, Sun Yang
Construction And Research Of Bioreactor Simulation Scale-Up Model, Hu Yi-Wen, Han Fei-Fei, Jin Kui-Qi, Sun Yang
Food and Machinery
Objective: Building a perfect bioreactor scale-up model provides convenience for enterprise production, and a guidance for reactor manufacturers. Methods: Through the test of 1.5, 5, 20, 200 L scale reactor, the correlation and parameters of the volume dissolved oxygen coefficient kLa and mixing time tm were optimized and explored, the simulation amplification model of bioreactor was established, and the Scaleuper amplification system was built by MATLAB. Results: Compared with the test results, the simulation deviation of kLa was within ±15%. By introducing the definition of critical speed into the correlation of tm, the overall simulation deviation of tm was reduced …
Preparation And Analytical Application Of Molecularly Imprinted Polymer Electrochemical Sensor Forganoderic Acid A, Huang Gui-Zhen, Wang Qing-Xiang, Chen Jin-Mei, Zhan Feng-Ping, Wei Lan, Zheng Wan-Rong
Preparation And Analytical Application Of Molecularly Imprinted Polymer Electrochemical Sensor Forganoderic Acid A, Huang Gui-Zhen, Wang Qing-Xiang, Chen Jin-Mei, Zhan Feng-Ping, Wei Lan, Zheng Wan-Rong
Food and Machinery
Objective: Construction of a simple and rapid method for the analysis of ganoderic acid A （GAA）. Methods: The molecular imprinted polymer （MIP） that can specifically recognize ganoderic acid A （GAA） were prepared by cyclic voltammetric deposition using GAA as template molecule and o-phenylenediamine as functional monomer. The structure, morphology and electrochemical behavior of MIP were characterized by infrared spectroscopy, scanning electron microscopy and electrochemical methods. Using [Fe（CN）6]3-/4- as the active indicator, the analytical performance of the sensor for GAA was investigated. Porous MIP for GAA can be prepared on the electrode surface by one-step electropolymerization. Results: The …
Study On Supercritical Co2 Extraction Process, Volatile Components And Antioxidant Activity Of Rose Oil From Dianhong Rose, Liu Jin-Yun, Chang Jian, Jiang Zhuo-Fang, Xu Chong-Jun, Cheng Wan, Wu Heng
Study On Supercritical Co2 Extraction Process, Volatile Components And Antioxidant Activity Of Rose Oil From Dianhong Rose, Liu Jin-Yun, Chang Jian, Jiang Zhuo-Fang, Xu Chong-Jun, Cheng Wan, Wu Heng
Food and Machinery
Objective: Comprehensive utilization of Dianhong rose resources to improve the added value of products. Methods: The single-factor experiment and response surface experiment were used to optimize the extraction process of supercritical CO2 with essential oil yield as the measurement index. The composition and relative content of different rose oils were analyzed by GC-MS. The components and relative contents of different rose oils were analyzed by GC-MS, and the antioxidant activities of different rose oils were evaluated. Results: The results showed that the optimal extraction parameters were as followed: particle size of 40 mesh, extraction pressure of 25.5 MPa, extraction …
Study On Preparation Technology And Amino Acid Composition Of Ultrasonic-Assisted Seaweed Iodine, Liu Wen-Qian, Yue Yuan-Yuan, Li Jia-Xing, Ouyang Hua-Feng, Wang Ru, Wang Yi-Ping
Study On Preparation Technology And Amino Acid Composition Of Ultrasonic-Assisted Seaweed Iodine, Liu Wen-Qian, Yue Yuan-Yuan, Li Jia-Xing, Ouyang Hua-Feng, Wang Ru, Wang Yi-Ping
Food and Machinery
Objective: This study aimed to improve the preparation efficiency seaweed iodine and reduce the cost. Methods: The ultrasonic assisted technology was applied in kelp extraction section. The ultrasonic-assisted extraction technology of seaweed iodine was optimized by single factor and response surface test design. The amino acid composition in the final product was analyzed by high performance liquid chromatography (HPLC). Results: The optimal extraction conditions were as follows: ultrasonic power 125 W, ultrasonic time 130 min and ultrasonic temperature 57 ℃. Under the control of these conditions, the extraction yield was 39.85%, which was 1.6 times higher than that without ultrasonic-assisted …
Study On The Anti-Fatigue Activity Of Chickpea Peptide, Dong Jing-Ru, Mo Jun-Ming, Wang Sheng
Study On The Anti-Fatigue Activity Of Chickpea Peptide, Dong Jing-Ru, Mo Jun-Ming, Wang Sheng
Food and Machinery
Objective: This study aimed to investigate the anti-fatigue activity of chickpea polypeptide and its anti-fatigue mechanism. Methods: Weight-bearing swimming test, fatigue-related biochemical index analysis and immune activity determination were analyzed in mice. Results: In the weight-bearing swimming test, the swimming time of the chickpea polypeptide-fed group was significantly longer than that of the control group (P<0.01). The test results of biochemical indicators showed that chickpea polypeptide significantly reduced the levels of urea nitrogen and blood lactic acid in the blood of mice, and also significantly increased the contents of liver glycogen, muscle glycogen and insulin (P<0.01). Chickpea polypeptide also significantly improved the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and lactate dehydrogenase (LDH). In addition, chickpea polypeptide supplementation improved the immunity by increasing phagocyte activity, stimulating sIgA secretion and reducing proinflammatory cytokines in mice. Conclusion: Chickpea polypeptide has a strong anti-fatigue effect on mice.
Effect Of Different Soaking Conditions On The Quality Of Tartary Buckwheat Wine, Bai Jia-Jia, Ji De-Rong, He Yu-Zhen, Zhong Qiu, Duan Li-Li
Effect Of Different Soaking Conditions On The Quality Of Tartary Buckwheat Wine, Bai Jia-Jia, Ji De-Rong, He Yu-Zhen, Zhong Qiu, Duan Li-Li
Food and Machinery
Objective: This study aimed to find the most appropriate tartary buckwheat variety for soaking wine. Methods: The contents of total flavones, soluble solids, total phenols, antioxidant properties, color difference and light transmittance of three kinds of tartary buckwheat wines (A, B and C) were investigated. The effects of different tartary buckwheat varieties on wine quality characteristics were explored. Results: The contents of total flavone, total phenol, soluble solid and the scavenging rate of DPPH and ABTS free radicals of tartary buckwheat B were the highest. The color difference showed that the content of total flavonoids and total phenols had a …
Optimization Of Preparation And In-Vitro Activity Of Uricate-Lowering Peptide From Dorsal Belly Meat Of Skipjack, Chu Yu-Rou, Sun Ji-Peng, Zhu Qiu-Yu, Yao Wei, Song Ru, Wang Jia-Xing
Optimization Of Preparation And In-Vitro Activity Of Uricate-Lowering Peptide From Dorsal Belly Meat Of Skipjack, Chu Yu-Rou, Sun Ji-Peng, Zhu Qiu-Yu, Yao Wei, Song Ru, Wang Jia-Xing
Food and Machinery
Objective: This study aimed to develop an auric-lowering peptide of skipjack byproducts (SPBp) with Xanthine oxidase (XOD) inhibition activity and improve the utilization rate of byproducts of skipjack. Methods: Based on the response surface methodology, several parameters affecting this process were investigated, including protease types and enzymatic dosages, pH, temperature, time and their interactions on the content of amino-nitrogen, solid content and XOD inhibition activity. Results: The results showed that trypsin was the best protease. The optimal process parameters were as follows: the dosage of the enzyme was 4%, pH 8.0, temperature 55 ℃, time 5 h, solid-liquid ratio 1∶3 …
Effects Of Carbon Quantum Dot-Chitosan Coating On Preservation Of Fresh-Cut Shiitake Mushroom, Yang Na, Wei Qi-Min, Yang Wei-Ling, Huang Qun
Effects Of Carbon Quantum Dot-Chitosan Coating On Preservation Of Fresh-Cut Shiitake Mushroom, Yang Na, Wei Qi-Min, Yang Wei-Ling, Huang Qun
Food and Machinery
Objective: In order to improve freshness preservation quality of the fresh-cut shiitake mushroom. Methods: Carbon quantum dots were synthesized from dragon fruit peel and ethylenediamine, and characterized for stability and toxicity. Fresh-cut shiitake mushrooms were studied, and stored at 4 ℃ for 10 d after coating with 0.0, 1.5, 3.0 and 4.5 mL/100 mL carbon quantum dots-chitosan （N-CDs/CH） for preservation treatment. During the period of preservation, the weight loss, color difference, soluble solids and polyphenol oxidase were measured every 24 h to evaluate the preservation effect of the composite films. Results: The synthesized N-CDs had the typical characteristics, which had …
Research On Trajectory Planning Algorithm Of Artificial Meat Adipose Tissue 3d Printing, Chen Lian-Jie, Ning Meng, Chen Hui-Tao, Zhang Fan
Research On Trajectory Planning Algorithm Of Artificial Meat Adipose Tissue 3d Printing, Chen Lian-Jie, Ning Meng, Chen Hui-Tao, Zhang Fan
Food and Machinery
Objective: Aiming at the problems of unstable 3D printing quality and low printing efficiency of adipose tissue part of artificial meat based on plant raw materials, studied and improve the intelligent 3D printing trajectory motion algorithm matching with food materials, to reduce the accumulation and corners in the printing path. Methods: A trajectory planning method adapted to the characteristics of artificial meat adipose tissue raw materials was proposed. The complex section layer of the sliced model was divided into several simple polygon sub-partition contours using Bayesian algorithm, and an improved nearest neighbor method was used to determine the optimal motion …
Cloud Point Extraction Coupled With Isooctane Back Extraction For Determination Of Eight Pesticide Residues In Tea Beverages By Gas Chromatography Mass Spectrometry, Xie Jie, Zhou Run, Kong Ling-Can, Meng Yuan-Hua, Wang Yu
Cloud Point Extraction Coupled With Isooctane Back Extraction For Determination Of Eight Pesticide Residues In Tea Beverages By Gas Chromatography Mass Spectrometry, Xie Jie, Zhou Run, Kong Ling-Can, Meng Yuan-Hua, Wang Yu
Food and Machinery
Objective: Rapid determination of organochlorine and pyrethroid pesticide residues in tea beverages. Methods: Selecting the non-ionic surfactant PEG-4000 as cloud point extraction, pesticides were extracted with isooctane by ultrasonic back extraction. The upper layer of isoctane solution was analyzed by Gas Chromatography/Mass. The isooctane solution was separated by HP-5 ms UI capillary column and analyzed qualitatively and quantitatively by GC/MS. Results: The eight pesticides showed a good linear relationship between 0.01～2.0 and 0.02～4.0 mg/L, respectively, with the correlation coefficients (R) of over 0.995. The detection limit and quantification limit of this method were 0.003~0.008 mg/L and 0.01~0.02 mg/L, respectively. The …
Determination Of Bisphenol A And Nonylphenol In Food Packaging Material By High Performance Liquid Chromatography-Tandem Mass Spectrometry, Tang Ji-Wang, Yuan Lie-Jiang, Xiao Yong, Wang Shu-Xia, Pan Zhao, Deng Hang
Determination Of Bisphenol A And Nonylphenol In Food Packaging Material By High Performance Liquid Chromatography-Tandem Mass Spectrometry, Tang Ji-Wang, Yuan Lie-Jiang, Xiao Yong, Wang Shu-Xia, Pan Zhao, Deng Hang
Food and Machinery
Objective： A method based on high-performance liquid chromatography-mass spectrometry was developed for the simultaneous determination of bisphenol A and nonylphenol in food packaging material. Methods: The extraction solvent and extraction method were investigated. Solid-phase extraction （SPE） conditions were optimized. The effects of solid phase extraction column, loading solvent, eluting solvent and elution solvent on the purification effect were systematically analyzed. The samples were ultrasonic extracted with dichloromethaneand cleaned up on a solid-phase extraction （SPE） cartridge equipped with packing material of silicone. The separation was performed on a Venusil MP C18（2）（100 mm×2.1 mm,2.6 μm）by gradient elution with 0.1% ammonia …
Determination Of The Residues Of 9 Kinds Of Antiviral Drugs In Animal-Derived Sports Nutrition By Hilic-Ms/Ms, Guo Wei
Food and Machinery
Objective: This study aimed to help with strengthening the monitoring of antiviral drug residues in animal-derived sports nutrition products. Methods: A method for determining the residues of 9 kinds of antiviral drugs in animal-derived sports nutrition was established, by using hydrophilic interaction chromatography tandem mass spectrometry. The samples were extracted by 1% acetic acid-acetonitrile and purified by PRiME HLB column. The mobile phase system of acetonitrile-10 mmol/L ammonium acetate solution (containing 0.1% formic acid) was separated by Sielc Obelisc R column in gradient elution mode to achieve the separation of nine target components. Results: The 9 kinds of antiviral drugs …
Simultaneous Determination Of 24 Kinds Of Pesticide Residues In Coffee Peel By Solid Phase Extraction-Gas Chromatography-Mass Spectrometry, Liu Chao, Mei Li-Bao, Yin Hai-Fei, Li Shu-Zhen, Long Yu-Zhou
Simultaneous Determination Of 24 Kinds Of Pesticide Residues In Coffee Peel By Solid Phase Extraction-Gas Chromatography-Mass Spectrometry, Liu Chao, Mei Li-Bao, Yin Hai-Fei, Li Shu-Zhen, Long Yu-Zhou
Food and Machinery
Objective: A solid phase extraction-gas chromatography/mass spectrometry （GC-MS） method was developed for the simultaneous determination of 24 pesticide residues in coffee peel. Methods: The sample was wetted with water, extracted with acetonitrile, the extract solution is concentrated and then purified with ProElut TPC solid phase extraction column, eluted with acetonitrile and toluene=3∶1, after concentration, the sample was determinated by GC-MS and the peak area was measured by internal standard method. Results: The 24 pesticides were separated well within 28 minutes. The residue of pesticide was in the range of 0.016～0.400 mg/kg, the linearity of the method was good, the correlation …
Quality And Safety Management Research Of Traditional Fermented Meat Products, Zhao Ya-Li, Zhang Xiang-Mei, Lu Han, Yang Bei, Wen Gang
Quality And Safety Management Research Of Traditional Fermented Meat Products, Zhao Ya-Li, Zhang Xiang-Mei, Lu Han, Yang Bei, Wen Gang
Food and Machinery
The quality safety risks and quality management issues of traditional fermented meat products were analyzed. This paper put forward suggestions on increasing research and development efforts, accelerating the knowledge benefit transformation process, standardizing the standard system, refining supervision standards, standardizing workshop production, optimizing product markets, strengthening the awareness of social participation, and promoting social co-governance, in order to improve the overall quality and safety level of the traditional fermented meat products industry.
Research On Multi-Agent Collaborative Governance Of Food Safety In Catering Services Enabled By Blockchain Technology, Yu Hui-Li, Liu Deng-Pan
Research On Multi-Agent Collaborative Governance Of Food Safety In Catering Services Enabled By Blockchain Technology, Yu Hui-Li, Liu Deng-Pan
Food and Machinery
Objective: Solving the problem of poor information exchange among the governance subjects will help to improve the governance effect. Methods: By sorting out the typical food safety crisis events of catering services in China in 2021, and analyzing the relationship between blockchain technology and food safety collaborative governance of catering services. Results: Governance information fragmentation, information asymmetry and difficulty in information traceability were realistic dilemma of multi-agent collaborative governance. Blockchain technology and multi-agent collaborative governance had the coupling of information decentralization, security, transparency and traceability. Conclusion: Construct the multi-agent collaborative governance framework enabled by blockchain technology, promote the in-depth integration …
The Reflection And Reconstruction Of The Penalty Exemption List System In The Field Of Food Safety, Lin Ke-Liang, Mo Chen-Yu, Yang Hai
The Reflection And Reconstruction Of The Penalty Exemption List System In The Field Of Food Safety, Lin Ke-Liang, Mo Chen-Yu, Yang Hai
Food and Machinery
Current food safety penalty list positioning fuzzy, content reiterated a lot of the current legislation, to avoid the defects of food safety substance problems. The reason is that the administrative law enforcement excessive list penalty for food safety risk, thus adopted a negative avoidance attitude. It is not only conducive to optimize the business environment, but also will cause adverse effects on food safety in a long-term view. In essence, the formulation of the exemption list is still administrative activities rather than legislative activities. The reconstruction of the food safety exemption list system should replace the current legislation in terms …
Three-Dimensional Flow Field Analysis Of A Progressively Accelerating Single Screw With Kneading Blocks, Tian Dong, Guo Shu-Guo, Wang Li-Yan
Three-Dimensional Flow Field Analysis Of A Progressively Accelerating Single Screw With Kneading Blocks, Tian Dong, Guo Shu-Guo, Wang Li-Yan
Food and Machinery
Objective: In order to improve the mixing performance and work speed of a single screw extruder increase. Methods: A coaxial gradual acceleration single screw using planetary wheel assemblies and mixing elements was designed. Using ansys/cfx to conduct the three-dimensional flow field analysis of the flow channel, the macro pressure field, speed vector diagram, speed streaming diagram and axial speed changes, were finished, which was compared to the only traditional pillar. Results: As the speed of the pillar continues to increase, the time for the material to stay in the barrel becomes shorter, and the extrusion efficiency of the gradual acceleration …
Full-Life Fatigue Analysis Of Vertical Retort Based On Fracture Mechanics, Liu Jin-Peng, Zhang Li-Mei, Huang Zhi-Gang
Full-Life Fatigue Analysis Of Vertical Retort Based On Fracture Mechanics, Liu Jin-Peng, Zhang Li-Mei, Huang Zhi-Gang
Food and Machinery
Objective: The fatigue strength of a new type of vertical retort under the cyclic load of heat engine was studied, especially the residual fatigue life of the pot body after the crack appeared and the factors affecting the fatigue crack propagation of the germicidal pot. Methods: The mechanical characteristics of retort under sterilization and three kinds of cyclic loads were analyzed by Workbench, the design fatigue life of the retort under three alternating stresses was studied based on the S-N curve. The effect of the initial crack size, pressure and temperature on the stress strength factor and residual fatigue life …
Determination Of Discrete Element Simulation Parameters Of Rice Milling Machine, Zhang Ning, Cao Xian-Zhou, Wang Xin-Yu, Sun Yan-Ling
Determination Of Discrete Element Simulation Parameters Of Rice Milling Machine, Zhang Ning, Cao Xian-Zhou, Wang Xin-Yu, Sun Yan-Ling
Food and Machinery
Objective: To solve the problem that the roller is inconvenient to operate and the concept of rolling friction coefficient and sliding friction coefficient is confused. Methods: EDEM software was used to simulate the white milling process. Taking MNAW18 rice mill as a reference and taking Feng Liangyou series brown rice as a sample, a set of method for measuring discrete element simulation parameters of rice mill was established by independently setting up an experimental bench and combining with simulation calibration. Results: Using the self-made collision coefficient experimental device and video motion processing software, the collision recovery coefficients between brown rice …
Research On Control System Of Carya Cathayensis Shell Breaking Automatic Production Line Based On Plc, Zhao Yan-Li, Zhao Qian, Li Zhi-Qiang
Research On Control System Of Carya Cathayensis Shell Breaking Automatic Production Line Based On Plc, Zhao Yan-Li, Zhao Qian, Li Zhi-Qiang
Food and Machinery
Objective: In order to solve the problems of low automation level and low efficiency of the control system in the current automated production line of hickory shell breaking. Methods: On the basis of the existing automatic production line of hickory shell breaking, a control system of hickory shell breaking automatic production line based on PLC control technology is proposed. With PLC as the core, the control of the whole hickory shell breaking automatic production line was completed, including shell breaking machine, air separator, shell breaking separator, color sorter and other equipment. The feasibility of the method was verified by testing …
Effect Of Antifreeze On The Quality Of Cooked Crawfish Tail Meat After Freeze-Thawed, Hu Xiao-Bo, Chen Wen-Fei, Gu Ze-Mao, Zhou Sheng-Bi, Xiong Shan-Bai, Hu Yang
Effect Of Antifreeze On The Quality Of Cooked Crawfish Tail Meat After Freeze-Thawed, Hu Xiao-Bo, Chen Wen-Fei, Gu Ze-Mao, Zhou Sheng-Bi, Xiong Shan-Bai, Hu Yang
Food and Machinery
Objective: The study aimed to improve the storage quality of frozen cooked crawfish tail meat. Methods: Crawfish tail meat were immersed in different proportions of complex phosphate, trehalose and sorbitol antifreeze agents. The thawing loss rate, water content and distribution, water retention, salt-soluble protein, total thiol content, texture properties of crawfish tail meat after freeze-thawed were measured, and the microstructure changes were observed to evaluate the effect of each antifreeze agent. The antifreeze agent with better effect was selected as horizontal factor to design orthogonal experiment, so as to optimize the appropriate recipe of antifreeze agents. Results: 1.5% complex phosphate, …
Evaluation On Fruit Texture And Quality Of Different Pear Varieties During Cold Storage, Zhou Hui-Juan, Ye Zheng-Wen, Zeng Si-Yi, Wang Xiao-Qing, Luo Jun
Evaluation On Fruit Texture And Quality Of Different Pear Varieties During Cold Storage, Zhou Hui-Juan, Ye Zheng-Wen, Zeng Si-Yi, Wang Xiao-Qing, Luo Jun
Food and Machinery
Objective: To determine the key points of pear quality formation and deterioration of different Pyrus pyrifolia pears during cold storage. Methods: Zaoshengxinshui, Hujingli18, Hujingli67 were used as materials, the fruit of three varieties with the same ripeness were stored in cold storage at （1.0±0.5） ℃ and relative humidity of 85%~90% for 60 days, fruit texture, total soluble solids, titratable acid, sugar and acid contents and 10 sensor values were determined every 10 days. Results: Hujingli18 and Zaoshengxinshui were the typical type of fructose accumulation,Hujingli 67 was the type of sorbitol accumulation, and all three varieties were the type of malic …
The Effect Of Slaughtering Methods On The Muscle Quality Of Eels, Yang Li-Feng, Mao Shu-Can, Wang Lan, Li Ping, Zhou Zhi, Xiong Guang-Quan, Shi Liu
The Effect Of Slaughtering Methods On The Muscle Quality Of Eels, Yang Li-Feng, Mao Shu-Can, Wang Lan, Li Ping, Zhou Zhi, Xiong Guang-Quan, Shi Liu
Food and Machinery
Objective: This study aimed to investigate the effect of slaughtering methods on the muscle quality of eels. Methods: Two slaughtering methods （including mechanical slaughter and manual slaughter） were used to analyze the energy metabolism and physicochemical properties of eel meat slices during storage. Results: Duringstorage at 4 ℃ for 48 h, the glycogent and lactic acid content of eelfillets subjected to mechanical slaughter were lower than those of manual slaughtered samples generally. During 7 d-storage, the sensory deterioration of eel meat samples was retarded by mechanical slaughter, and the TVB-N and TBARS content were lower than those of manual slaughtered …
Cherry Defect And Classification Detection Based On Improved Yolox Model, Liu Jing-Yu, Pei Yue-Kun, Chang Zhi-Yuan, Chai Zhi, Cao Pei-Pei
Cherry Defect And Classification Detection Based On Improved Yolox Model, Liu Jing-Yu, Pei Yue-Kun, Chang Zhi-Yuan, Chai Zhi, Cao Pei-Pei
Food and Machinery
Objective: In order to expand the scope of cherry sales and achieve rapid grading of cherries under industrial conditions. Methods: Firstly, the YOLOX network was used to detect the defective fruit, in order to solve some problems where the defect was not obvious. The detection accuracy of the inconspicuous defect was improved by setting the appropriate fusion factor for the feature pyramid network, and in order to solve the problem of imbalance between various types of real samples, Focal Loss was integrated into the loss function. Then, the intact fruit was graded using the YOLOX network, and the attention mechanism …
Defect Detection Method Of Red Globe Grapes Bunches Based On Near Infrared Camera Imaging, Gao Sheng
Defect Detection Method Of Red Globe Grapes Bunches Based On Near Infrared Camera Imaging, Gao Sheng
Food and Machinery
Objective: The study aimed to explore a fast and accurate method to detect brown spot and damage decay in grape bunches. Methods: Colour images （RGB） and near-infrared images （NIR） of red globe grapes bunches were captured by a near-infrared industrial camera. The edges of the samples and the edges of the defective parts were first extracted by applying the Sobel algorithm to the NIR images （NIR）, and then the images were binarized by the adaptive thresholding algorithm to achieve the segmentation of the images. Then the sample edges and fruit stalks were removed by the normalized supergreen method and the …