Dynamic Simulation Analysis Of Double-Shaft Paddle Type Food Mixer Based On Dem,
2021
Chengxian College, Southeast University, Nanjing, Jiangsu 210088, China
Dynamic Simulation Analysis Of Double-Shaft Paddle Type Food Mixer Based On Dem, Xu Yu-Jing
Food and Machinery
Objective: In order to analyze the movement and mixing characteristics of food powder particles in the double-shaft paddle mixer to optimize the verification of the mixer structure. Methods: The EDEM software was used to simulate the proportional mixing of three different sizes of food powder particles, and then Bin Groups would build a mixing box to observe the mixing situation, and evaluate it by studying the number of particles between different types of food powder. Results: At t=5 s, there was still a certain gap in the number of particles in the squares corresponding to the three types of powdered …
Modeling And Analysis Of Static And Dynamic Characteristics Of Three Degrees Of Freedom Parallel Packaging Mechanism,
2021
School of Mechanical and Electrical Engineering, North China Institute of Aerospace Engineering, Langfang, Hebei 065000, China
Modeling And Analysis Of Static And Dynamic Characteristics Of Three Degrees Of Freedom Parallel Packaging Mechanism, Dong Xu, Gao Tie-Hong
Food and Machinery
Objective: Aiming at a three degree of freedom HUU type parallel mechanism which can be used in food packaging，the static and dynamic characteristics are studied. Methods: The geometric model of the parallel mechanism was firstly established, and the static and dynamic stiffness of the mechanism were analyzed and calculated; then the dynamic equation of the mechanism was established based on Lagrange method. The dynamic analysis of the connecting rod was carried out as a pure rigid body, and then the rigid flexible coupling dynamic analysis was carried out by making the branch chain connecting rod flexible. Results: The static stiffness …
Effect Of Chlorine Dioxide Concentration On Storage Quality Of Cuihong Plum,
2021
Guiyang College, Guiyang, Guizhou 550005, China
Effect Of Chlorine Dioxide Concentration On Storage Quality Of Cuihong Plum, Zhao Zhi-Bing, Liu Yong-Ling, Li Ying, Ba Liang-Jie, Luo Dong-Lan
Food and Machinery
Objective: This study aimed to exploring the fresh-keeping effect of chlorine dioxide onCuihong plum, and then providing a new way for postharvest fresh-keeping technology of Prunus. Methods: Cuihong plum fruits were treated with different concentrations of chlorine dioxide (20, 40, 60 mg/L) and then refrigerated at (1.0±0.5) ℃. Results: Compared with the control group, the group treated with 40 mg/L chlorine dioxide significantly reduced the decay rate, respiratory intensity, polyphenol oxidase activity (P<0.05), and inhibited the color difference L* value, hardness, soluble solids content, titratable acid content, VC content, peroxidase activity, the total number of mold and yeast colonies of Prunus (P<0.05). Conclusion: Treatment with 40 mg/L chlorine dioxide has the best storage effect, which can delay the metabolic process of Cuihong plum and maintain good storage quality.
Research On Jujube Defect Recognition Method Based On Improved Convolution Neural Network,
2021
Geely University of China, Chengdu, Sichuan 641423, China
Research On Jujube Defect Recognition Method Based On Improved Convolution Neural Network, Zhang Zhong-Zhi, Xue Huan-Qing, Fan Guang-Ling
Food and Machinery
Objective: An automatic identification method of jujube defects based on improved convolution neural network was established. Methods: Using the dual branch convolution neural network structure, branch 1 combined with the transfer learning strategy for pre training, analysis 2 extracted the feature information from the jujube image based on the lightweight network fusion feature map. The superiority of this method was verified by comparative experiments. Results: Compared with the improvement before, the improved defect recognition method optimized the structure of the convolutional neural network, and the detection accuracy was further improved, from 96.02% to 99.50%. Conclusion: This method improved the network …
Effects Of Anthocyanins From Vitis Amurensis On Cognitive Impairment In Mice With Chronic Alcoholism,
2021
College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
Effects Of Anthocyanins From Vitis Amurensis On Cognitive Impairment In Mice With Chronic Alcoholism, Liu He, He Yang, Gu Jia-Dong, Wen Lian-Kui
Food and Machinery
Objective: To study the effect of Vitis amurensis. anthocyanins on cognitive impairment induced by chronic alcoholism. Methods: The mice were divided into blank group, model group, low-dose and high-dose groups treated by anthocyanins from V. amurensis. The model of chronic alcoholism was established and intervened with anthocyanin from V. amurensis. Morris water maze and step-down test, antioxidant stress and cholinergic system related indexes were measured, and the hippocampal slices were observed. Results: After anthocyanins intervention, the escape latency of water maze test was shortened by 41.38%, the total swimming distance was shortened by 28.53%, the first stage time was shortened …
The Effects Of Eurotium Cristatum Fermentation Broth On Immunological Indicators In Immunosuppressive Mice,
2021
Changsha Commerce & Tourism College, Changsha, Hunan 410116, China
The Effects Of Eurotium Cristatum Fermentation Broth On Immunological Indicators In Immunosuppressive Mice, Peng Ying
Food and Machinery
Objective: This study aimed to study the effect of Eurotium cristatum fermentation broth on improving the immunity of immunosuppressive mice. Methods: Immunosuppressive model was established by intraperitoneal injection of cyclophosphamide (80 mg/kg) in mice. Then the immunosuppressive mice were fed with low, middle and high dose fermentation broth for 15 days. The spleen index, carbon clearance test, half hemolysis value (HC50), delayed-type hypersensitivity test and the content of IL-2 in serum were detected to explore the changes of immunological indexes in immunosuppressive mice treated with fermentation broth. Results: Compared with the model group, the fermentation broth of the …
Flavonoid Constituents And Antioxidant Activities Of Crude Ethanolic Extracts From Different Tissues Of Premna Puberula Pamb. In Guizhou,
2021
Guiyang Nursing Vocational College, Department of Pharmacy, Guiyang, Guizhou 550081, China; School of Life Science, Guizhou University, Guiyang, Guizhou 550025, China
Flavonoid Constituents And Antioxidant Activities Of Crude Ethanolic Extracts From Different Tissues Of Premna Puberula Pamb. In Guizhou, Yang Ning-Xian, Yang Jiao, Wang Yan-Qiu, Zhang Ming-Sheng
Food and Machinery
Objective: To enrich natural sources of antioxidants. Methods: The scavenging ability of DPPH and ABTS+ of extracts from Guizhou Premna puberula Pamb. was detected by ultrasonic extraction of total phenols and total flavonoids from roots, stems and leaves. Results: All the tissues had certain antioxidant activity and the antioxidant activity of leaves was the strongest, which was positively correlated with the contents of total phenols and total flavonoids. When the mass concentration was 0.1 mg/mL, the DPPH radical scavenging rate of leaves could reach 82.5%, which was close to the total reducing power of VC. Conclusion: It indicated that …
Optimization Of Polysaccharide Extraction Process From Aralia Elata（Miq.） Seem By Complex Enzymes And The Research Of Its Antioxidant Activity,
2021
Heilongjiang Vocational Institute of Ecological Engineering, Haerbin, Heilongjiang 150025, China
Optimization Of Polysaccharide Extraction Process From Aralia Elata（Miq.） Seem By Complex Enzymes And The Research Of Its Antioxidant Activity, Zhang Gui-Juan, Chen Ji-Ling, Tao Hui-Zhu
Food and Machinery
Objective: This study aimed to optimization of polysaccharide extraction process from Aralia elata (Miq.) Seem by complex enzymes and research of its antioxidant activity. Methods: The cellulase, pectinase and papain were combined as the compound enzymes and used to extract the polysaccharide from A. elata (AEPS). Enzymolysis temperature, enzymolysis duration, and solid-liquid ratio as the independent variables, a three-level-three-factor scheme was designed using the Box-Behnken method. After that, the antioxidant activity of AEPS was determined by the free radical scavenging ability experiments. Results: The optimal process conditions for the extraction process of AEPS using complex enzymes were as follows: enzymolysis …
Research Progress On The Effect Of Purple Sweet Potato Flour On The Processing Characteristics Of Wheat Dough,
2021
Hunan Provincial Key Laboratory of Special Medical Food Processing, Changsha, Hunan 410004, China; College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Research Progress On The Effect Of Purple Sweet Potato Flour On The Processing Characteristics Of Wheat Dough, Hu Han, Wang Ya-Shu, Zhou Wen-Hua, Zhang Meng-Xiao, Tan Yu-Heng, Li Liang-Yi
Food and Machinery
The research on the processing characteristics of purple potato-wheat mixed flour in recent years, and the changes of purple potato flour on the rheological properties of wheat dough in terms of silty, texture, stretching, dynamic rheology were summarized. The change law of the influence of gelatinization and aging on the thermodynamic properties was reviewed. Moreover, the existing problems in the current research on purple sweet potato-wheat mixed flour were analyzed, and the future research directions has been prospected.
Review On Separation, Purification And Functional Activity Of Plant Tannin,
2021
College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
Review On Separation, Purification And Functional Activity Of Plant Tannin, Huang Da-Rong, Zhang Ya-Zhen, Zheng Bai-Tao, Du Bing, Li Pan
Food and Machinery
The types and applications of botanical tannin was reviewed. Moreover, the purification process and functional activity of tannin were summarized, and the relative mechanism was preliminarily introduced. The research direction in the future was also prospected.
Empirical Analysis And Enlightenment Of American Nuval Scoring Labeling Development,
2021
Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
Empirical Analysis And Enlightenment Of American Nuval Scoring Labeling Development, Huang Ze-Ying, Huang Bei-Xun
Food and Machinery
NuVal scoring labeling that was based on overall nutritional quality index, adopted 1 to 100 to show the nutritional value of packaged food and fresh agricultural products. The higher was the score, the better was the nutritional status of food. The labeling was integrated with food prices to make it easier for consumers to compare the nutritional value of what they pay. Therefore, FOP labeling in China could be attempted to integrate nutrition evaluation information with food price, and promote in fresh agricultural products, and adjust its algorithm in accordance with the national nutritional needs.
Simultaneous Determination Of 10 Kinds Of Amide Herbicide Residues In Dark Tea By Quechers With Gas Chromatography-Triple Quadrupole Mass Spectrometry,
2021
Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China
Simultaneous Determination Of 10 Kinds Of Amide Herbicide Residues In Dark Tea By Quechers With Gas Chromatography-Triple Quadrupole Mass Spectrometry, Yi Shou-Fu, Liang Feng, He Qing-Ke, Song Yang, Liao Yan-Zhi
Food and Machinery
Objective: A method for simultaneous determination of 10 amide herbicide residues in dark tea was developed by QuEChERS method coupled with gas chromatography-triple quadrupole mass spectrometry （GC-MS/MS）. Methods: After being extracted by acetonitrile and purified by QuChERS, the samples were separated by TG-5 SIL MS column （30 m×0.25 mm×0.25 μm）, then detected bymultiple reaction monitoring mode （MRM）. Blank matrix matching standard curve was used in quantitative analysis. Results: The calibration curves had a good liner relationship in the range of 0.001~0.500 mg/L with the correlation coefficients greater than 0.999. The limits of detection （LODs） and limits of quantitation （LQDs） of …
The Design Of The Sweeping And Collecting Device For The Residual Grain At The Bottom Of The Flat Warehouse,
2021
Henan University of Technology, Zhengzhou, Henan 450001, China
The Design Of The Sweeping And Collecting Device For The Residual Grain At The Bottom Of The Flat Warehouse, Wang Ming-Xu, He Ying-Zhen, Zhao Zi-Yan, He Wen-Bin, Ding Le-Le
Food and Machinery
Objective: Aiming at the low degree of mechanization, automation and intelligence in the cleaning and collecting process of the surplus grain at the bottom of the granary, a cleaning and collecting device for the surplus grain at the bottom of the silo was designed and manufactured. Methods: Based on simulation and numerical calculation, the structural strength analysis and optimization of the reliability of the key components of the cleaning and collection device were carried out, and verification experiments were also carried out through the manufacturing prototype. Results: The cleaning device designed in the experiment can clean the surplus grain of …
Effects Of Static Deposition Method And Koh Treatment Of Zeolite On Separation Of Wheat Gliadin,
2021
School of Science, Tianjin University of Commerce, Tianjin 300134, China
Effects Of Static Deposition Method And Koh Treatment Of Zeolite On Separation Of Wheat Gliadin, Wang Dan-Li, Liu Lu, Zhang Yi-Fan, Lian Xi-Jun
Food and Machinery
Objective: To study the technology of extracting gliadin from gluten and separating different gliadin components. Methods: The solution of gluten dissolved in 65% ethanol was settled at 4, 10, 20 and 30 ℃ for 1, 2, 4, 8, 10, 20 and 40 hours respectively, and the mass of the precipitated gliadin was measured. Further, the gliadin prepared by static deposition at 4 ℃ for 12 hours was used as raw material to study the separation of gliadin component by modified zeolite with KOH in different conditions. The zeolite was modified in three different mass fractions （20%, 50% and 80%）, three …
Study On Preparation Technology And Properties Of Dietary Fiber Ultrafine Powders From Okra Fermented Wine Pomace,
2021
College of Food and Biological Engineering, Jimei University, Xiamen, Fujian 361000, China
Study On Preparation Technology And Properties Of Dietary Fiber Ultrafine Powders From Okra Fermented Wine Pomace, Luo Xin, Zhou Yan-Qiang, Wu Guang-Bin, Chen Fa-He
Food and Machinery
Objective: This study aimed to effectively utilize a large amount of dietary fiber andpectic polysaccharides in okra fermented wine pomace and turn waste into treasure. Methods: The processing technology and related characteristics of okra dietary fiber ultrafine powder were studied by wet ultrafine grinding and spray drying technology. Results: The results showed that okra fermented wine pomace was treated by colloid mill three times; then homogenized by high-pressure homogenizer for three times with 40 MPa of the homogenization pressure; after homogenization, spray drying was made with 210 ℃ in the inlet air temperature, 40 Hz of the fan frequency, solids …
Research Progress On Wall-Breaking Technology Of Rape Bee Pollen,
2021
Department of Food and Drug Engineering, College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha, Hunan 410208, China; Hunan Province Engineering Research Center of Bioactive Substance Discovery of Traditional Chinese Medicine, Changsha, Hunan 410208, China
Research Progress On Wall-Breaking Technology Of Rape Bee Pollen, Zheng Hui, Yang Si-Qi, Sun Yan, Li Shun-Xiang
Food and Machinery
This paper summarized the cell structure, wall breaking morphology and wall-breaking methods of rape bee pollen, analyzed and compared the advantages and disadvantages of various wall-breaking methods, summarized the application and development status of wall breaking rape bee pollen, and prospected the research on wall-breaking technology of rape bee pollen in the later stage.
Effects Of Salts On Structural, Physicochemical And Rheological Properties Of Low-Methoxyl Pectin/Sodium Caseinate Complex,
2021
Southwest University
Effects Of Salts On Structural, Physicochemical And Rheological Properties Of Low-Methoxyl Pectin/Sodium Caseinate Complex, Shengyu Fan, Fang Fang, Ailing Lei, Jiong Zheng, Fusheng Zhang
Department of Food Science Faculty Publications
The addition of salts is an effective way to improve the properties of polysaccharide/protein complexes for use in foods. However, there is no comparative study on the effects of different ions on the complex system of low methoxyl pectin (LMP)/ sodium caseinate (CAS) complex. The effects of different concentrations of three salt ions (Na+, K+, Ca2+) on the physicochemical and rheological properties of the LMP/CAS complex were determined in this study, and the structure of LMP/CAS complex was characterized. The results showed that the addition of these three salt ions affected zeta potential, particle …
Measuring Palatability As A Linear Combination Of Nutrient Levels In Food Items,
2021
Murray State University
Measuring Palatability As A Linear Combination Of Nutrient Levels In Food Items, Jeffrey S. Young
Faculty & Staff Research and Creative Activity
It well known that palatability and nutritional quality of foods and/or diets are viewed as being in tension with one another. While there exist multiple measures of healthiness, there are no such measures for tastiness. This gap limits the degree to which researchers can investigate this tension and its implications for dietary behavior and hence public health and nutrition policy. The scope of future work concerning the dietary behavior of Americans would expand greatly if researchers better understood consumers’ willingness to eat certain foods, which matters as much as recommending those foods for them to eat in the first place. …
In Vitro Antioxidant And Antihypertensive Activity Of Edible Insects Flours (Mealworm And Grasshopper) Fermented With Lactococcus Lactis Strains,
2021
Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD, A.C.)
In Vitro Antioxidant And Antihypertensive Activity Of Edible Insects Flours (Mealworm And Grasshopper) Fermented With Lactococcus Lactis Strains, Adilene Mendoza-Salazar, Lourdes Santiago-Lopez, Maria J. Torres-Llanez, Adrian Hernandez-Mendoza, Belinda Vallejo-Cordoba, Andrea M. Liceaga, Aaron E. Gonzalez-Cordova
Department of Food Science Faculty Publications
The objective of the present study was to evaluate the potential antioxidant and angiotensin converting enzyme inhibition (ACEI) activity of edible insect flours fermented with Lactococcus lactis strains. For the fermentation, mealworm and grasshoppers flours were dissolved (0.5% w/v) in buffer solution (pH 7.0) and individually inoculated (3%) with Lactococcus lactis strains (NRRL B-50571, NRRL B-50572). The samples were incubated for 72 h at 30 ◦C, and the pH was recorded. The degree of hydrolysis (DH) and protein content were determined. The total polyphenol compounds, antioxidant activity (ABTS, DPPH, ORAC, and FRAP), and ACEI of the <3 kDa fractions were ana- lyzed. The pH of the fermented samples decreased to 3.5–3.9 (p < 0.05). The fermented grasshopper flour showed an increased DH (0.42%) and overall higher total polyphenol content (8.23 mg Gallic Acid Equivalent/mL). In general, the highest antioxidant activity was for the grasshopper fractions fermented for 24 h by Lactococcus lactis NRRL B-50572, which also showed 23.47% ACEI inhibition with an IC50 of 0.97 mg/mL. The peptide profile obtained increased after fermentation, being higher for the mealworm flour fermented sample. This study presents, for the first time, the use of specific strains of Lactococus lactis for fermenting edible insect-derived products in the production of bioactive compounds with potential antioxidant and antihypertensive activity.
A Life Cycle Assessment Of Hospital Food Waste: A Model For Large Scale Commercial Impact Reduction,
2021
DePaul University
A Life Cycle Assessment Of Hospital Food Waste: A Model For Large Scale Commercial Impact Reduction, Demeri E. Amodeo, Christie Klimas
DePaul Discoveries
Current commercial landfill diversion techniques typically focus on recycling, but this method can be environmentally costly when compared scenarios involving the implementation of composting or waste reduction within large facilites. A life cycle assessment (LCA) can be used to provide better information on the environmental impact of different landfill diversion strategies. In this LCA, the impacts of individiual products were quantified in terms of global warming potential, which provides comparable impact categories for analysis. This study gathered information from previous literature about plant-based and omnivorous diets to simulate what the possible impact would be for a city, like Chicago, to …
