Effects Of Two-Step Heating Process On Hydrophobicity And Barrier Properties Of Protein-Based Composites,
2024
College of Food Science, Shanghai Ocean University, Shanghai 201306, China
Effects Of Two-Step Heating Process On Hydrophobicity And Barrier Properties Of Protein-Based Composites, Wang Zi, Lei Qiao, Zhang Wenhui
Food and Machinery
Objective: To improve the film heating process. Methods: In this experiment, edible protein-polysaccharide films were prepared by using the method of chain dissociation at 35, 40, 45, 50, 55 ℃ at one stage and denaturing and heating whey protein isolation at 85 ℃ at the second stage. The structure, hydrophobicity, barrier properties and mechanical properties of the films were compared, and the optimum film forming process conditions were determined. Results: The oxygen resistance, tensile strength （TS） and elongation at break （EAB） of the film increased by 25.0%~58.7%, 54.8%~89.9% and 40.2%~59.2%, respectively, when the film was heated at 25 ℃ and …
Quantum Chemistry Calculation Of Antioxidant Synergistic Effect Of Resveratrol And Sesamol In Oil,
2024
College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
Quantum Chemistry Calculation Of Antioxidant Synergistic Effect Of Resveratrol And Sesamol In Oil, Gao Weihong, Qu Xiaodi, Yao Yunping, Li Changmo
Food and Machinery
Objective: This study focused on the antioxidant synergistic mechanism between resveratrol and sesamol. Methods: The levels of free radicals and peroxide free radicals in sunflower seed oil were assessed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and hydrogen peroxide assays, respectively. The proportion of resveratrol and sesamol were optimized by integrating the measurements with the determination of the induction period. Additionally, quantum chemical simulations were employed to elucidate the underlying reaction processes. Results: Upon heating sunflower seed oil supplemented with resveratrol and sesamol at 180 ℃ for 2 hours, the total content of free radicals was determined as （0.08±0.03） mol/L and （0.20±0.03） mol/L, …
Study On The Adsorption Properties Of Nano-Calcium Carbonate Surface Modified Zeolite To Phenolic Acid In Simulated Cane Juice,
2024
College of Food and Biochemical Engineering, Guangxi Science and Technology Normal University, Laibin, Guangxi 546119, China
Study On The Adsorption Properties Of Nano-Calcium Carbonate Surface Modified Zeolite To Phenolic Acid In Simulated Cane Juice, Liu Fujie, Huang Shihui, Pan Lili
Food and Machinery
Objective: This study aimed to explore the adsorption performance and mechanism of phenolic acids in simulated sugarcane juice by nano-calcium carbonate modified zeolite (CaCO3@ZL). Methods: Using zeolite as the supporting framework, a co-precipitation technique was utilized to create nano-calcium carbonate modified zeolite (CaCO3@ZL), which was then employed to simulate the adsorption of phenolic acids in sugarcane juice. Using X-ray diffraction (XRD) and infrared spectroscopy (FTIR), the zeolite's characteristics were examined both before and after alteration. The kinetic model fitting of CaCO3@ZL and static adsorption studies were also conducted. The properties of phenolic acids were …
The Study On The Effect Of The Internal Heat Exchanger On Transcritical Co2 Ejector Refrigeration System,
2024
Industrial Technology Center 〔Innovation and Entrepreneurship Education Center〕, Shanghai Dianji University, Shanghai 201306, China
The Study On The Effect Of The Internal Heat Exchanger On Transcritical Co2 Ejector Refrigeration System, Wu Dongjiong, Hu Jiang, Li Yang
Food and Machinery
Objective: This study aimed to investigate the effect of internal heat exchanger on the performance of transcritical CO2 two-stage compression/ejector refrigeration system. Methods: The simulation software was used to analyze the effects of the internal heat exchanger on the suction temperature, discharge temperature, specific work increment of the low-pressure compressor and system performance coefficient under different gas cooler outlet temperatures (25～45 ℃), high-pressure side discharge pressure (7.4～9.5 MPa), evaporation temperature (-40～-15 ℃) and intermediate pressure (3～5 MPa). Results: With the increase of intermediate pressure, the discharge temperature and specific work increment of the low-pressure compressor increased at a specific …
Motion And Force Analysis Of Mold Open-Closing Mechanism With Electric Eight-Bar For Food Packaging Thermoforming Machine,
2024
Shantou Polytechnic College, Shantou, Guangdong 515078, China
Motion And Force Analysis Of Mold Open-Closing Mechanism With Electric Eight-Bar For Food Packaging Thermoforming Machine, Xie Zhigang, Chen Xiaoqin, Xu Zhiyang
Food and Machinery
Objective: To solve the technical problems in the design and analysis of the core parts of the mold open-closing mechanism related rod. Methods: The motion and force analysis of mold open-closing mechanism with an electric eight-bar was described in detail by using the analytical method. Results： Based on the example calculation, the relationship curve between the displacement of the slider and the crank angle was obtained, and the variation law of velocity and acceleration was further deduced. Meanwhile, the theoretical clamping force, the changing trend and the characteristics of each member force in the sheet extrusion process were analyzed. Conclusion: …
Paddy-Brown Rice Boundary Detection Method Based On Machine Vision,
2024
School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, China
Paddy-Brown Rice Boundary Detection Method Based On Machine Vision, Liu Hao, Fan Jijun, Yu Nanhui, Liu Xiaopeng, Zhou Jin, Mou Yi
Food and Machinery
Objective: To detect and locate the boundary line between paddy and brown rice in separation equipment. Methods: A method based on straight-line edge detection was proposed by performing model matching with different color features. Converted the resulting images to grayscale and applied the linear edge detection algorithm to locate the target position. Results: Our approach reduced the error to within 5% and significantly improved recognition accuracy compared to traditional methods. Conclusion: Proposed method has a small recognition error, making it suitable for identifying the boundary between paddy and brown rice.
Research On Internal Temperature Temporal And Spatial Distribution Of Citrus Peel In Heat Treatment Process,
2024
School of Mechatronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400016, China
Research On Internal Temperature Temporal And Spatial Distribution Of Citrus Peel In Heat Treatment Process, Zhao Yao, He Zhaoying, Jiang Yuhong, Cai Xiangyu, Li Shiquan
Food and Machinery
Objective: This study aimed to obtain the temperature distribution law of different points in citrus fruit over time during heat treatment. Methods: The temperature change of citrus peel during heat treatment was studied from the perspective of heat transfer. A new method was applied to calculate the temperature transfer rule in citrus peel, and a new mathematical model was established to simulate the temperature distribution of citrus peel during heat treatment. The spatial and temporal distribution of the internal temperature field of three kinds of citrus (Fengjie Navel orange, longevity blood orange and Ziyang Tangerine) was studied. Results: The study …
Effects Of Matcha On Lipid Oxidation During Storage Of Coix Seed,
2024
College of Modern Agricultural Engineering, Fujian Vocational College of Agriculture, Fuzhou, Fujian 350007, China
Effects Of Matcha On Lipid Oxidation During Storage Of Coix Seed, Chen Chan, Huang Jing
Food and Machinery
Objective: This study aimed to study the effect of matcha on lipid oxidation during the storage of coix seed. Methods: The fresh coix seeds were used as raw material and treated with matcha tea powder in different doses. The changes in water content, fatty acid value, peroxidation value, malondialdehyde content, total number of colonies and key enzyme of lipid oxidation were determined during the storage of coix seeds. Results: The treatment with different doses of matcha powder could inhibit the increase of fatty acid value, peroxide value, malondialdehyde content, lipase, and lipoxygenase activities, and reduce water consumption and microbial growth …
Effect Of Ultra-High Temperature Transient Sterilization On Quality Of Rice Wine,
2024
College of Agriculture, Yanbian University, Yanji, Jilin 133002, China
Effect Of Ultra-High Temperature Transient Sterilization On Quality Of Rice Wine, Xiong Sirui, Wang Longyu, Wang Yunfeng, Wang Yuting, Jin Tieyan, Zhang Ling
Food and Machinery
Objective: To study the effect of ultra-high temperature (UHT) on the quality of rice wine. Methods: Korean rice wine underwent weekly measurements of its physicochemical, sensory, and microbiological parameters during the storage period after being subjected to UHT. This allowed for the analysis of changes in the quality and functional components of the sterilized Korean rice wine after 20 weeks of storage, as well as the determination of the best sterilization conditions for this method. Results: Sterilization time of 5 s at 125 ℃ is the optimum parameter for UHT. After 20 weeks of storage, the total amino acid content …
Application Of Surface-Enhanced Raman Spectroscopy In Food Safety Detection,
2024
Zhengzhou Institute for Food and Drug Control, Zhengzhou, Henan 450000, China
Application Of Surface-Enhanced Raman Spectroscopy In Food Safety Detection, Wang Liuliu, Sun Fangtao
Food and Machinery
Based on Raman scattering phenomenon, surface-enhanced Raman spectroscopy （SERS） detection technology enhances "fingerprint" information of tested substance by adsorbing it on the surface of SERS substrate to achieve trace detection. With the advantages of simple pre-processing, high sensitivity, simple operation, real-time non-destructive detection on site and so on, SERS analysis technology has attracted much attention in food safety rapid detection. The characteristics and limitations of various types of SERS substrates were introduced. The recent research on SERS detection technology in food safety detection was summarized in detail. Finally, this paper discussed the challenges of its commercial application, and prospected the …
Research Progress In The Detection Technology Of Chloramphenicol Residues In Animal Derived Food,
2024
Research Institute of Agricultural Quality Standards and Testing Technology, Hubei Academy of Agricultural Science, Wuhan, Hubei 430064, China;Hubei Key Laboratory of Nutritional Quality and Safety of Agro products, Wuhan, Hubei 430064, China;Yangtze University, Jingzhou, Hubei 434023, China
Research Progress In The Detection Technology Of Chloramphenicol Residues In Animal Derived Food, Yuan Zhe, Peng Maomin, Liu Li, Peng Xitian, Xia Hong
Food and Machinery
Chloramphenicol is a widely used bactericide and highly effective antibiotic in aquaculture and livestock breeding. To protect human health, detecting chloramphenicol residues in animal-derived food products has become increasingly important. This review introduces the properties of chloramphenicol, the limit standards, and the hazards of residual chloramphenicol in animal-derived food products. Furthermore, it describes commonly used chloramphenicol detection methods. In addition, the review thoroughly analyzes and summarizes the advantages and disadvantages of different detection methods, outlining methods to improve the efficiency and precision of chloramphenicol detection to ensure the quality and safety of animal-derived food products. Finally, the prospects for developing …
Research Progress Of Plant Exosome-Like Nanoparticles On Characteristics, Components And Functions,
2024
College of Integration Science, Yanbian University, Yanji, Jilin 133002, China
Research Progress Of Plant Exosome-Like Nanoparticles On Characteristics, Components And Functions, Chen Chunping, Xu Hongyan, Liu Shuaichen, Tian Yuxin, Wang Yuchen
Food and Machinery
Exosome-like nanoparticles （ELNs） are nano-sized extracellular vesicles enclosed by lipid bilayer membrane and secreted by cells; And carrying a variety of cargo, including lipids, proteins, miRNAs and secondary metabolites. Plant ELNs have received widespread attention due to their unique structure and excellent physiological activity. This review summarizes the isolation methods, characteristics, components and functions of plant ELNs, focusing on the application of multi-omics technologies in plant ELNs. In addition, some suggestions for further study of plant ELNs were put forward.
Research On Transparent Design Of Agricultural Product Packaging,
2024
School of Art and Design, North China Institute of Aerospace Engineering, Langfang, Hebei 065000, China
Research On Transparent Design Of Agricultural Product Packaging, Song Mingxuan, Tian Yuan
Food and Machinery
The paper introduces the origin and style characteristics of transparent design concept, discusses the significance and value of introducing transparent design in agricultural product packaging, and elaborates on the application principles and issues that need to be paid attention to when introducing transparent design in agricultural product packaging from three aspects: pattern design, color application, and material selection.
Continuous Preparation Of Antioxidant Low Molecular Weight Hyaluronic Acid By Coupling Of Enzymolysis And Membrane Separation,
2024
College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Continuous Preparation Of Antioxidant Low Molecular Weight Hyaluronic Acid By Coupling Of Enzymolysis And Membrane Separation, Teng Wei, Liu Junhui, Wu Jinhong, Liu Shutao
Food and Machinery
Objective: This study aimed to construct an enzymolysis and membrane separation method to improve the production efficiency of low molecular hyaluronic acid (HA). Methods: A continuous enzymolysis and membrane separation coupling reaction system was designed, which consisted of an enzyme biological reaction tank and a flat polyethersulfone ultrafiltration membrane separation module. By evaluating membrane flux, membrane contamination, hyaluronic acid concentration, and yield, the effects of various factors on the separation of low molecular HA in the enzyme-membrane coupling system were systematically investigated. The process parameters of the enzyme-membrane coupling reaction were further optimized through orthogonal experiments. Results: The optimal process …
The Influence Of Stacking Mode And Air Supply Power On Cooling Effect Of Cold Storage,
2024
Southwest Forestry University, Kunming, Yunnan 650224, China
The Influence Of Stacking Mode And Air Supply Power On Cooling Effect Of Cold Storage, Xu Jing, Wang Feng, Tan Zhenhua, Lu Qiufang
Food and Machinery
Objective: Reasonable planning of the stacking of goods in the mobile cold storage and reasonable design of the air supply power of the fan, to reduce cold storage energy consumption and improve economic efficiency. Methods: A three-dimensional physical model and k-ε mathematical model of a certain cold storage were established, and the temperature field inside the cold storage under different stacking methods of goods and different air supply power were simulated using Fluent software. Results: The research results showed that under the same working conditions, the average storage temperature of goods horizontally was 2.014 ℃, and the average storage temperature …
Anti-Fatigue Effect Of Hemp Seed Oligopeptide In Mice And Its Sex Difference,
2024
Taiyuan City Vocational College, Taiyuan, Shanxi 030027, China
Anti-Fatigue Effect Of Hemp Seed Oligopeptide In Mice And Its Sex Difference, Miao Wenyu, Li Yunfei, Song Lulu, Wang Jingjing, Cheng Jianjun, Qin Nan
Food and Machinery
Objective: To explore the anti-fatigue effect of hemp seed oligopeptides, and its effect and mechanism between male and female individuals. Methods: Equal number of male and female mice were randomly divided into a blank control group, a positive control group and low, medium and high dose groups. The blank control group was given normal saline, the positive control group was given whey protein. Gavage treatment was carried out with the corresponding drug for 28 days. Body weight, exhaustive swimming time, blood lactic acid （BLA）, urea nitrogen （BUN）, liver glycogen （LG） contents of mice were measured. Results: Regardless of gender, flax …
Effects Of Ultra-High Pressure Treatment On Bacterial Diversity Of Epinephelus Coioides During Refrigeration,
2024
Beibu Gulf University, Qinzhou, Guangxi 535011, China;Guangxi College and University Key Laboratory of High-value Utilization of Seafood and Prepared Food in Beibu Gulf, Qinzhou, Guangxi 535011, China
Effects Of Ultra-High Pressure Treatment On Bacterial Diversity Of Epinephelus Coioides During Refrigeration, Huang Li, Pang Tingcai, Qi Cen, Chen Deqiang
Food and Machinery
Objective: This study focused on the effectively control of the spoilage and deterioration of grouper during refrigeration. Methods: Illumina high-throughput sequencing technology was used to amplify the 16S rDNA V3-V4 segment of bacteria, then analyzed the changes in the bacterial community structure of E. obliquus after being treated with 400 MPa UHP for 5 minutes and refrigerated at 4 ℃ for 3, 6, 9, and 12 d. Results: According to Alpha diversity analysis fish samples treated with and without UHP showed increasing Chao1 and Ace indices as refrigeration times were extended, but Shannon indices progressively dropped. Nonetheless, the fish samples …
Effect Of Uv Sterilization On The Quality Of Grass Carp Meat During The Chilling Storage,
2024
National Research and Development Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China;State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang University, Nanchang, Jiangxi 330022, China
Effect Of Uv Sterilization On The Quality Of Grass Carp Meat During The Chilling Storage, Yuan Liping, Peng Bin, Zhong Bizhen, Hu Mingming, Li Jinlin
Food and Machinery
Objective： The effect of UV sterilization on the texture quality and flavor substances of the frozen grass carp meat was studied, and the best UV irradiation time was determined. Methods: The grass carp meat was pretreated with different UV irradiation times （0, 30, 60, 90, 150 min） at 30 W of UV radiation, then the quality parameters （apparent morphology, total number of bacteria on the surface of fish, juice loss rate, texture parameters, color, odor and sensory） and volatile components of the fish meat during chilling storage （0, 3, 6, 9 d） were measured. Results: It showed that the longer …
Effect Of Polyphenol Compound Formula On Relieving Exercise Fatigue In Mice,
2024
Hebei Normal University of Science and Technology Institute of Food Science and Technology, Qinhuangdao, Hebei 066000, China
Effect Of Polyphenol Compound Formula On Relieving Exercise Fatigue In Mice, Fu Mengfan, Zhang Chun, Liu Binghao, Liu Suwen, Shi Donglin, Liu Jing, Chang Xuedong
Food and Machinery
Objective： This study aimed to explore the fatigue relieving effect of Lonicera caerulea Berry polyphenol, hawthorn polyphenol microcapsules, lactoferrin and vitamin C as polyphenol compound formula to alleviate fatigue. Methods： The commercial sports nutrition food with the compound formula of creatine, β-hydroxy-β-methylbutyrate, fructose diphosphate, taurine, vitamin B6 and watermelon powder was used as the positive control. The experiment of exhaustive swimming in mice was carried out. The fatigue related indexes were determined by the kit, and the microscopic pathological tissues of the organs were observed by H&E staining. Results： There was no significant difference in body …
Antioxidant Activity And Α-Glucosidase Inhibitory Activity Of Five Banana Pulp Polyphenols,
2024
School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China;Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China;National Center of Important Tropical Crops Engineering and Technology Research, Wanning, Hainan 571533, China;Key Laboratory of Processing Suitability and Quality Control of the Special Tropical Crops of Hainan Province, Wanning, Hainan 571533, China;Hainan Provincial Engineering Research Center of Tropical Spice and Beverage Crops, Wanning, Hainan 571533, China
Antioxidant Activity And Α-Glucosidase Inhibitory Activity Of Five Banana Pulp Polyphenols, Ran Jingfeng, Chen Xiaoai, Yi Cuiping, Zhang Yanjun
Food and Machinery
Objective: The purpose of this study was to compare the activity difference of polyphenols in banana pulp of different varieties and to provide scientific basis for the exploitation and utilization of banana pulp polyphenols. Methods: Five banana pulp polyphenols were extracted by ultrasonic extraction, and the phenolic components were analyzed by ultra-high performance liquid chromatography （UHPLC）. The antioxidant capacity and inhibition ability of α-glucosidase were determined. Results: The total polyphenols, flavonoids and tannins content were significant differences among five varieties （P＜0.05）. Eight phenolic compounds were identified in five banana pulps, including four phenolic acids and their derivatives, …
