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Food Science Commons™

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2022

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Articles 181 - 210 of 865

Full-Text Articles in Food Science

Evaluation Of Wheat-Specific Peptide Targets For Use In The Development Of Elisa And Mass Spectrometry-Based Detection Methods, Jessica Humphrey Nov 2022

Evaluation Of Wheat-Specific Peptide Targets For Use In The Development Of Elisa And Mass Spectrometry-Based Detection Methods, Jessica Humphrey

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Individuals with IgE-mediated wheat allergy and celiac disease must avoid the consumption of wheat. Those with celiac disease must also avoid rye and barley in addition to wheat as these make up the gluten-containing grains. To ensure products are accurately labeled, ELISA methods may be used to monitor compliance with food allergen and gluten-free regulations. Currently, available ELISA methods for wheat detection utilize monoclonal antibodies that target peptides from the gluten fraction of proteins, and therefore, also detect rye and barley. Limitations such as differing antibody reactivity and unequal gluten content among wheat, rye, and barley have led to inconsistent …

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Occurrence Of Hydroxyproline In Proteomes Of Higher Plants, Olivia Huffman Nov 2022

Occurrence Of Hydroxyproline In Proteomes Of Higher Plants, Olivia Huffman

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Food allergies affect millions of individuals across the United States and worldwide. Peanut allergies are among the most severe food allergies because of their potentially life-threatening symptoms and lifelong persistence. Potent peanut allergen, Ara h 2, is known to contain an amino acid motif containing the posttranslational modification, hydroxyproline (HyP). HyP is associated with immunogenic response when present both in Ara h 2 and in timothy grass pollen allergen, Phl p 1. To further explore the presence of HyP in higher plants and specifically to investigate its potential presence in commonly allergenic plants, a study of 26 plant seeds was …

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Lactic Acid Bacteria Isolated From Fresh Vegetable Products: Potential Probiotic And Postbiotic Characteristics Including Immunomodulatory Effects, Fatima Khaled Alameri Nov 2022

Lactic Acid Bacteria Isolated From Fresh Vegetable Products: Potential Probiotic And Postbiotic Characteristics Including Immunomodulatory Effects, Fatima Khaled Alameri

Theses

The ability to perform effectively in the gastrointestinal system (GIT) is one of the most significant criteria for selecting the best probiotic bacteria. Thus, the present study aimed to investigate the potential probiotic characteristics of some selected lactic acid bacteria (LAB) isolated from vegetable products. Probiotic characteristics included tolerance to acid and bile, cholesterol removing ability, bile salt hydrolysis, resistance against lysozyme and antibiotics, production of exopolysaccharides (EPS), antimicrobial and hemolytic activities, and cell surface characteristics (auto-aggregation, co-aggregation, and hydrophobicity). Out of 46 isolates, 17 isolates that exhibited remarkable survivability under gastrointestinal conditions were selected for further analysis. Almost all …

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Influence Of Hesperidin On The Physico-Chemical, Microbiological, And Sensory Characteristics Of Frozen Yogurt, Roberto Antonio Cedillos Hernández Oct 2022

Influence Of Hesperidin On The Physico-Chemical, Microbiological, And Sensory Characteristics Of Frozen Yogurt, Roberto Antonio Cedillos Hernández

LSU Master's Theses

Frozen yogurts contain yogurt culture bacteria which might impart health benefits to its consumers. Global frozen yogurt market sales are expected to grow 4.8% by 2028 which represents an important opportunity for the industry, consumers, and researchers. Polyphenols are metabolites found in plants which have antioxidant and anti-inflammatory properties and might prevent chronical diseases such as cancer, diabetes, and cardiovascular diseases. The objective of this study was to elucidate the effect of the polyphenol hesperidin on the physico-chemical, microbiological, and sensory characteristics of frozen yogurts. Hesperidin was incorporated in frozen yogurt at three concentrations (500, 250 and 125 mg/90g of …

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An Active Biodegradable Layer-By-Layer Film Based On Chitosan-Alginate-Tio2 For The Enhanced Shelf Life Of Tomatoes, Kalpani Y. Perera, Shubham Sharma, Brendan Duffy, Shiviani Pathania, Amit K. Jaiswal, Swarma Jaiswal Oct 2022

An Active Biodegradable Layer-By-Layer Film Based On Chitosan-Alginate-Tio2 For The Enhanced Shelf Life Of Tomatoes, Kalpani Y. Perera, Shubham Sharma, Brendan Duffy, Shiviani Pathania, Amit K. Jaiswal, Swarma Jaiswal

Articles

This work aims at developing biodegradable active chitosan-alginate layer-by-layer bio-nanocomposite film with TiO2NPs using the solvent casting method followed by CaCl2 crosslinking for food packaging applications. The developed films enhanced the tensile strength and elongation at break by 14.76 and 2 folds (p < 0.05) respectively. The UV barrier properties of CH-SA-0.3%TiO2 film increased by 88.6%, while the film transparency decreased by 87.23%. All films showed antimicrobial activity against foodborne pathogens E. coli, S. aureus, S. typhi, and L. monocytogene. The film with 0.1%TiO2 showed the complete killing of gram-positive bacteria. The CH-SA-0.1%TiO2 film was completely biodegraded during the …

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Patterns Of Population Structure And Introgression Among Recently Differentiated Drosophila Melanogaster Populations, Jenn M. Coughlan, Andrius J. Dagilis, Antonio Serrato-Capuchina, Hope Elias, David Peede, Kristin Isbell, Dean M. Castillo, Brandon S. Cooper, Daniel R. Matute Oct 2022

Patterns Of Population Structure And Introgression Among Recently Differentiated Drosophila Melanogaster Populations, Jenn M. Coughlan, Andrius J. Dagilis, Antonio Serrato-Capuchina, Hope Elias, David Peede, Kristin Isbell, Dean M. Castillo, Brandon S. Cooper, Daniel R. Matute

Nebraska Cooperative Extension: Faculty and Staff Publications

Despite a century of genetic analysis, the evolutionary processes that have generated the patterns of exceptional genetic and phenotypic variation in the model organism Drosophila melanogaster remains poorly understood. In particular, how genetic variation is partitioned within its putative ancestral range in Southern Africa remains unresolved. Here, we study patterns of population genetic structure, admixture, and the spatial structuring of candidate incompatibility alleles across a global sample, including 223 new accessions, predominantly from remote regions in Southern Africa. We identify nine major ancestries, six that primarily occur in Africa and one that has not been previously described. We find evidence …

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Workspace Simulation And Trajectory Planning Of Food Handling Robot, Cai Guo-Qing, Hao Rui-Lin, Zhou Li-Jie, Shi Yan Oct 2022

Workspace Simulation And Trajectory Planning Of Food Handling Robot, Cai Guo-Qing, Hao Rui-Lin, Zhou Li-Jie, Shi Yan

Food and Machinery

Objective: Analyzed the workspace of 6-DOF food handling robot and planed the motion trajectory, so as to provide basis for the layout of food handling platform in workstation and the motion control of robot. Methods: Composition and structure of the robot were analyzed, the kinematics model was established, and the kinematics model was verified by MATLAB. Based on this, the workspace of the robot was modeled and solved, the working area of the robot was obtained, and the reasonable layout position of the food handling table was given; combined with the requirements of food handling task, a three-stage …

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Effect Of The Electric Field Treatment On The Pullulanase-Catalyzed Hydrolysis Of Waxy Rice Starch, Chen Cai-Wen, Tian Jia-Ning, Yu Kun-Zheng, Li Dan-Dan Oct 2022

Effect Of The Electric Field Treatment On The Pullulanase-Catalyzed Hydrolysis Of Waxy Rice Starch, Chen Cai-Wen, Tian Jia-Ning, Yu Kun-Zheng, Li Dan-Dan

Food and Machinery

Objective:This study aimed to classify the mechanism of pullulanase-catalyzed hydrolysis of waxy rice starch under electric field treatment, by monitoring the changes in hydrolysis efficiency, pullulanase activity, and the structure and properties of waxy rice starch. Methods:The hydrolysis efficiency was determined, and the structure and thermal properties of hydrolysates were characterized, by using scanning electron microscope, X-ray diffractometer, differential scanning calorimeterand rapid viscosity analyzer. Results:Under the control of the following conditions, electric field with intensities ≤2.5 V/cm could increase pullulanase activity, accelerate the hydrolysis, induce the pores and cracks on the granule surface, increase the relative crystallinity, …

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Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine, Tang Lin-Yue, Yuan Jiang-Feng, Lai Yu-Ting, Gong Ming-Gui, Sun Jian-Rui Oct 2022

Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine, Tang Lin-Yue, Yuan Jiang-Feng, Lai Yu-Ting, Gong Ming-Gui, Sun Jian-Rui

Food and Machinery

Objective:This study aimed to solve the problems of time consuming and high cost in the natural aging process. Methods: Black rice wine was treated with different microwave power, time and temperature. The contents of main phenols, organic acids, and esters in black rice wine treated by microwave technology were analyzed. Results: Microwave treatment could increase the contents of total esters, protocatechuic acid, gallic acid, syringic acid, acetic acid, ethyl valerate and ethyl acetate, reduce the contents of total phenols, total acids, caffeic acid, citric acid, tartaric acid, lactic acid and ethyl lactate, and have little effect on the contents …

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Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System, Ma Cheng-Tong, Li Jun-Wen, Ouyang Hao-Yi, Tan Sui-Yan, Yang Chu-Ping Oct 2022

Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System, Ma Cheng-Tong, Li Jun-Wen, Ouyang Hao-Yi, Tan Sui-Yan, Yang Chu-Ping

Food and Machinery

Objective:In order to realize the detection of apple sugar content, a nondestructive prediction method of apple sugar content based on the characteristic gray series of apple reflection spot image in darkroom system is proposed. Methods:The laser with the peak wavelength of 670 nm absorbed by the apple was used as the illumination light source, which was incident from the illumination port of the integrating sphere. The apple sample was placed at the sample port of the integrating sphere, and the reflection spot of the apple sample was obtained at the measuring port of the integrating sphere. Through the …

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Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage, Chen Yuan-Yuan, Ma Kai-Hua, Zhang Yu-Ting, Zheng Xiang-Fei, Zhang Xin-Yu, Ma Li-Zhen Oct 2022

Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage, Chen Yuan-Yuan, Ma Kai-Hua, Zhang Yu-Ting, Zheng Xiang-Fei, Zhang Xin-Yu, Ma Li-Zhen

Food and Machinery

Objective: To study the effects of microbial nitrification inhibitors on the formation and changes of flavors in air-dried sausages. Methods: Four groups of air-dried sausages were designed: MNI group: 0.05% of microbial nitrosation inhibitors (MNI) were added; MNIP group: 0.05% MNI and an inoculation of PRO-MIX5 commercial starter (Staphylococcus xylose, Lactobacillus sake,and L. plantarum) were added; FBFAP group: fermented beef flavorings and compound antioxidants were added, and the sausages were inoculated with the PRO-MIX5 commercial starter; and CK group: blank control (CK). The flavor of air-dried sausages was determined by an amino acid analyzer, Heracles iii ultra-fast gas phase electronic …

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Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms, Chen Guo-Tong, Lu Yun, Ma Ping-Ping, Fan Rui, Yang Zhong, Cao Xu Oct 2022

Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms, Chen Guo-Tong, Lu Yun, Ma Ping-Ping, Fan Rui, Yang Zhong, Cao Xu

Food and Machinery

Objective: This study aimed to obtain the volatile components of different parts of lavender in natural condition and provide theoretical basis for quality evaluation and rational utilization of lavender varieties.Methods: Orthogonal experiment was used to optimize the headspace solid phase microextraction (HS-SPME-GC-MS) conditions, and the volatile components of the root, stem, leaf and flower of the representative lavender species France blue were analyzed under the optimal conditions.Results: The optimal conditions of HS-SPME were extraction time 60 min, equilibrium time 20 min and desorption time 5 min. Under the control of these conditions, a total of 36 chemical components …

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Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol, Zhang Hu, Duan Yuan-Xing, Zhao Yang, Li Shi-Wei, Yang Liu Oct 2022

Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol, Zhang Hu, Duan Yuan-Xing, Zhao Yang, Li Shi-Wei, Yang Liu

Food and Machinery

Objective: To investigate the effect of moisture content of heated cigarette on releases of aerosol main components. Methods: Three different types of heated cigarettes were used to study the effects of moisture content of cigarette sticks on the release of main aerosol components by gas chromatography. Results: ① The equilibrium humidity was a positive correlation between the moisture contents of tobacco materials and releases of total aerosol particulate matters. ② The moisture contents of heated cigarettes stored at different equilibrium humilities had a great effect on releases of glycerol and nicotine in aerosol, but a small effect on release of …

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Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts, Zhao Qi-Yan, Tang Ning, Zhao De-Chen, Zhang Bo-Ya, Cheng Yong-Qiang Oct 2022

Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts, Zhao Qi-Yan, Tang Ning, Zhao De-Chen, Zhang Bo-Ya, Cheng Yong-Qiang

Food and Machinery

Objective: The study aimed to develop the vegetable value of common vetch (CV) and explore the effects of salt solution on phenolic accumulation and antioxidant activity in CV sprouts.Methods: The effects of NaCl stress and supplemental CaCl2 on free and combined phenolic accumulation in CV sprouts were analysed by UPLC in comparison with pea sprouts, soybean sprouts and mung bean sprouts. The changes of key enzyme activities and gene relative expression levels of PAL, C4H and 4CL, antioxidant enzyme activities and antioxidant activities were investigated under NaCl and CaCl2 treatments.Results: The total phenolics increased from (10.63±0.40) mg GAE/g …

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Rapid Determination Of Matrine And Oxymatrine In Honey, Jing Hui-Hua, Xiang Jun, Jiang Deng-Hui, Feng Yan-Ying, Wang Yun-Hao, Wang Liang-Liang Oct 2022

Rapid Determination Of Matrine And Oxymatrine In Honey, Jing Hui-Hua, Xiang Jun, Jiang Deng-Hui, Feng Yan-Ying, Wang Yun-Hao, Wang Liang-Liang

Food and Machinery

Objective:This study aimed to establish a new method for the determination of matrine and oxymatrine in honey by UPLC-MS/MS. Methods: The honey was dissolved in water, and the liquid-liquid extraction pretreatment technology was adopted. The extraction was achieved using ammonia-acetonitrile, with the addition of sodium sulfate to induce a salting out effect. Chromatographic separation was achieved on Inspire HILIC column in the mobile phase composition of acetonitrile and 0.1% formic acid5 mmol/L ammonium acetate buffer. Mass Spectrometry was carried out under the multiple reaction monitoring (MRM) mode with positive electrospray ionization (ESI+) and external standard method for quantitative analysis. …

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Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms, Huang Yong-Qiao, Ma Kai, Wu Xin-Wen, Gao Liang, Jian Yin-Chi, Lu Yao, Yang Chang-Biao Oct 2022

Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms, Huang Yong-Qiao, Ma Kai, Wu Xin-Wen, Gao Liang, Jian Yin-Chi, Lu Yao, Yang Chang-Biao

Food and Machinery

Objective: A rapid method for determination of bongkrekic acid in Auricularia auricular was developed using QuEChERS in combination with UHPLC-MS/MS. Methods: In this study, Several important experimental parameters, including type of extraction solvent, extraction time, adsorbent type and adsorbent dosage were effectively optimized using spiked samples. The sample were shaken with methanol containing 1% ammonia water, and then carried out by the C18 adsorbent purification.Results: The bongkrekic acid was determined within 4 minutes by negative ion multiple reaction monitoring mode analysis and external standard method. The linear range was 0.05~10.00 ng/mL (r＞0.998 3). The limit of detection (LOD) was …

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Determination Of 16 Kinds Of Polycyclic Aromatic Hydrocarbons In Spicy Strip By Quechers Gas Chromatography-Triple Quadrupole Mass, Li Sha, Zeng Xi-Wen, Shen Rui, Li Yi-Wei, Tan Zhen Oct 2022

Determination Of 16 Kinds Of Polycyclic Aromatic Hydrocarbons In Spicy Strip By Quechers Gas Chromatography-Triple Quadrupole Mass, Li Sha, Zeng Xi-Wen, Shen Rui, Li Yi-Wei, Tan Zhen

Food and Machinery

Objective:This study aimed to effectively improve the risk warning and quality and safety supervision of polycyclic aromatic hydrocarbons (PAHs) in spicy strip.Methods: The target compounds in the samples were extracted with acetonitrile and purified by QuEChERS, containing 100 mg N-propyl ethylenediamine (PSA), 100 mg octadecylsilane bonded silica gel (C18), and 1 000 mg neutral alumina adsorbent, and then were separated by DB-EUPAH column. It was detected by gas chromatography-triple quadrupole mass spectrometer with multiple reaction monitoring mode and matrix matching external standard method.Results: The 16 kinds of PAHs showed good linearity in the range of 0.005~0.500 μ …

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Determination Of Four Kinds Of Illegally-Added Artificial Sweeteners In Syrups By High Performance Liquid Chromatography, Zhong Fei-Fei, Lei De-Qing, Zhou Jin-Sha, Liu Bo, Wang Zi-Qing Oct 2022

Determination Of Four Kinds Of Illegally-Added Artificial Sweeteners In Syrups By High Performance Liquid Chromatography, Zhong Fei-Fei, Lei De-Qing, Zhou Jin-Sha, Liu Bo, Wang Zi-Qing

Food and Machinery

Objective: A high performance liquid chromatography method was established for determination of four artificial sweeteners in syrups, i.e., acesulfame, saccharin sodium, aspartame and advantame.Methods:Acetonitrile was used as mobile phase A, and 0.02 mol/L ammonium dihydrogen phosphate (pH value adjusted to 5.5 by triethylamine) was used as mobile phase B. The gradient elution was conducted, with flow rate at 1.0 mL/min,and the column temperature was at 35 ℃; the detection wavelength was 214 nm, and sample size was 10 μL was loaded on the was Shiseido AQ-C18 column (4.6 mm×250 mm, 5 μm) A total of 45 …

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Uncertainty Evaluation For The Determination Of Natural Capsaicin, Dihydrocapsaicin And Synthetic Capsaicin In Edible Oils And Fats By Lc-Ms/Ms, Huang Hui, Liao Yan-Zhi Oct 2022

Uncertainty Evaluation For The Determination Of Natural Capsaicin, Dihydrocapsaicin And Synthetic Capsaicin In Edible Oils And Fats By Lc-Ms/Ms, Huang Hui, Liao Yan-Zhi

Food and Machinery

Objective: Uncertainty assessment of the content of synthetic capsaicin, natural capsaicin and dihydrocapsaicin in edible oils and fats by liquid chromatography-mass spectrometry was carried out, and the sources of uncertainty and the key factors affecting the test results were analyzed, so as to improve the accuracy of test results.Methods: To establish a mathematical model for the uncertainty of the content of synthetic capsaicin, natural capsaicin and dihydrocapsaicin in edible oils and fats, to analyze the factors that may introduce uncertainty in the detection process, and to evaluate each uncertainty component.Results: The contents of synthetic capsaicin, natural capsaicin and …

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Discrimination Of Cigarette Based On Near-Infrared Spectroscopy Technology And Firefly Algorithm Optimized Support Vector Machine Parameters, Pan Xi, Li Ran, Wei Min, Wei Qing, Qiu Chang-Gui Oct 2022

Discrimination Of Cigarette Based On Near-Infrared Spectroscopy Technology And Firefly Algorithm Optimized Support Vector Machine Parameters, Pan Xi, Li Ran, Wei Min, Wei Qing, Qiu Chang-Gui

Food and Machinery

Objective: In order to accurately and quickly discriminate cigarettes. Methods: After collecting the near-infrared spectra of different brands and reducing the interference factors through the spectral preprocessing method, the spectral pretreatment method, the population number of firefly algorithm (FA) and the number of iterations on the correct rate of cigarette classification were investigated by using firefly algorithm to optimize support vector machine (SVM) parameters. Results: The standard normal variable transformation (SNV) combined with the first derivative method (1D) was used for near-infrared spectroscopy preprocessing. Under the condition that the number of firefly populations was 20 and the number of iterations …

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Principles Of Food Safety Regulation Transformation Under The Pursuit Of Co-Governance, Liang Jin-Gang, Qin Guo-Rong Oct 2022

Principles Of Food Safety Regulation Transformation Under The Pursuit Of Co-Governance, Liang Jin-Gang, Qin Guo-Rong

Food and Machinery

Objective: This study aimend to explore the appropriate transformation path of regulatory power for food safety "social co-governance". Methods: The state of "social co-governance" mode of food safety was analyzed and the possible secondary risks of "decentralization" of regulatory authority were analyzed, so as to explain the rational transformation of regulatory authority. Results: The blind decentralization of regulatory power will cause the policy risks of governance loss and disorder, leading to greater food safety accidents. Conclusion: It is necessary to make clear the transformation of "strict supervision to refinement and flexibility", adhere to the transformation of "basic rights of social …

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Optimization On Parameters Of Collecting And Sorting Device For Discarded Poultry Eggshells And Eggshell Membranes, Yang Yue-Bin, Chen Bo-Chao, Wang Ming-Jiu, Chi Yu-Jie, Chi Yuan Oct 2022

Optimization On Parameters Of Collecting And Sorting Device For Discarded Poultry Eggshells And Eggshell Membranes, Yang Yue-Bin, Chen Bo-Chao, Wang Ming-Jiu, Chi Yu-Jie, Chi Yuan

Food and Machinery

Objective:To efficiently exploited the discarded eggshells and eggshell membranes. Methods: The discarded eggshells was separated and collected. Used Fluent and EDEM coupling simulation to study the flow field characteristic and particles trajectory, which affected by structure parameters such as upper outlet diameter and lower outlet diameter of the collecting barrel. By analyzing flow field characteristic and capture rate of eggshells as well as eggshell membranes, the size of collecting barrel was optimized. The top angle, the vacuum of suction machine, the feeding inlet air velocity, the solid load of feeding inlet were used as the test factors. The recovery …

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Collaborative Path Planning Of Food Picking Robot Based On Discrete Multi-Objective Cuckoo Algorithm, Liu Jian, Hu Zhu-Bing, Zhao Xue-Chao Oct 2022

Collaborative Path Planning Of Food Picking Robot Based On Discrete Multi-Objective Cuckoo Algorithm, Liu Jian, Hu Zhu-Bing, Zhao Xue-Chao

Food and Machinery

Objective: In order to improve the picking efficiency of raw materials in large food processing and storage, a collaborative path planning method of food picking robot based on discrete multi-objective cuckoo algorithm is proposed. Methods: Aiming at the problem of picking multi location raw materials according to the proportion of food processing formula, the cooperative path planning model of multi-objective food picking robot was established, which took the total moving distance, total energy consumption and total weight of periodic picking raw materials as indicators and the Pareto optimal solution discrete multi-objective cuckoo algorithm (DMCA) was proposed. The three-layer cuckoo code …

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Exploration Of Multi Scene Task Scheduling And Simulation Experiment Platform For Materials Transportation Robots System, Weng Xun, Zhang Jing-Tian, Hu Xiao Oct 2022

Exploration Of Multi Scene Task Scheduling And Simulation Experiment Platform For Materials Transportation Robots System, Weng Xun, Zhang Jing-Tian, Hu Xiao

Food and Machinery

Objective: Verify the feasibility of the task scheduling and algorithm test platform of the materials transportation robots system based on the actual order data. Methods: This paper discusses the design of simulation experiment through the independently developed platform, focusing on the typical scenarios of pharmaceutical logistics. Aiming at the logistics scenario of task allocation strategy of multi robot with task classification, the Memory Elite Population based Catastrophe Adaptive Large Neighborhood Search(MEPCALNS) algorithm is designed. Results: Compared with ALNS algorithm, the efficiency of MEPCALNS algorithm is increased by 3.16% on average. Conclusion: By means of algorithm optimization research and simulation operation …

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Optimization And Test Study On Parameters Of Helical Axis Based On Edem Solid-Liquid Separation Device, Chang Jin-Pan, Guo Lin, He Xiao-Mei, Wang Jian-Kun, Fang Qi-Ming Oct 2022

Optimization And Test Study On Parameters Of Helical Axis Based On Edem Solid-Liquid Separation Device, Chang Jin-Pan, Guo Lin, He Xiao-Mei, Wang Jian-Kun, Fang Qi-Ming

Food and Machinery

Objective: To solve the problems of low dehydration rate of solid-liquid separation device and discharge not free of kitchen waste. Methods: By Optimizing the parameters of the key parts of the solid-liquid separation device, modeling the solid-liquid separation device based on Creo, analyzing the extrusion process through EDEM simulation software, the optimized screw shaft prototype was made and verified. Results: The optimized spiral shaft structure parameters were conveying distance 373 mm, compression distance 180 mm, compression end diameter 96 mm, spiral blade diameter 98 mm and axis length 553 mm; the force range of solid-liquid separation device was 2.7~4.5 N, …

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An Automatic Recognition Method For Food Foreign Matter Based On Improved Convolutional Neural Network, Deng A-Qin, Hu Ping-Xia Oct 2022

An Automatic Recognition Method For Food Foreign Matter Based On Improved Convolutional Neural Network, Deng A-Qin, Hu Ping-Xia

Food and Machinery

Objective: Improve the speed and accuracy of foreign matter identification in food. Methods: Based on the LeNet-5 network structure, the improved CNN model was obtained by adding batch normalization layer and dropout layer. Using this model, a recognition system was established for the automatic recognition of foreign bodies in food images. The performance of the model was analyzed through experiments. Results: Compared with the traditional model, this model has higher detection accuracy and faster recognition speed. The recognition accuracy of food foreign bodies was 99.75% and the recognition time was only 0.332 s. Conclusion: The foreign object recognition model of …

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Packaging Design Of Intangible Cultural Heritage Food Based On The Characteristics Of Traditional Folk Houses In East Fujian, Qiu Zu-Zhou, Qian Hui, Liu Yun Oct 2022

Packaging Design Of Intangible Cultural Heritage Food Based On The Characteristics Of Traditional Folk Houses In East Fujian, Qiu Zu-Zhou, Qian Hui, Liu Yun

Food and Machinery

In order to enhance the cultural value and design thinking of intangible cultural heritage food packaging design, and to spread the characteristics of traditional dwellings and traditional skills of intangible cultural heritage food, starting from cultural characteristics, architectural layout characteristics, architectural element characteristics and architectural color characteristics, Fujian Fuding white tea in east Fujian intangible cultural heritage food is the object of packaging design, which combines the characteristic elements of traditional residential buildings in eastern Fujian with the packaging design of local intangible cultural heritage food, and gives its packaging design significance and design strategy for feasibility design.

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Effects Of Different Concentrations Of Ozone Fumigation On The Storage Quality Of Agaricus Bisporus, Liu Chen-Xia, Qiao Yong-Jin, Tian Shan-Shan, Yao Lian-Mou, Ding Wen-Feng Oct 2022

Effects Of Different Concentrations Of Ozone Fumigation On The Storage Quality Of Agaricus Bisporus, Liu Chen-Xia, Qiao Yong-Jin, Tian Shan-Shan, Yao Lian-Mou, Ding Wen-Feng

Food and Machinery

Objective:This study aimed to investigate the effects of different concentrations of ozone fumigation on the texture and nutritional quality of post-harvestAgaricus bisporus during cool storage. Methods:‘A15’A. bisporus was treated with ozone gas with concentrations of 14.89, 29.77 and 44.65 mg/m3 respectively, and the changes in related indicators of each group during (1±1) ℃ storage were analyzed, such as sensory, texture and nutrition. Results:When stored for 8 days, 29.44 mg/m3 ozone fumigation treatments effectively maintained good springiness, cohesiveness and resilience, and delayed the decrease of the sensory quality, hardness, soluble solids, vitamin C and soluble protein content. Conclusion: …

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Effects Of High-Oxygen Modified Atmosphere Packaging Of The Quality Of Fresh-Cut Aralia Elata, Liu Huan, Zhao Han-Yu, Ye Lu-Lu, Dong Yan-Jiao Oct 2022

Effects Of High-Oxygen Modified Atmosphere Packaging Of The Quality Of Fresh-Cut Aralia Elata, Liu Huan, Zhao Han-Yu, Ye Lu-Lu, Dong Yan-Jiao

Food and Machinery

Objective:This study aimed to explore the effective method of high-oxygen modified atmosphere packaging for fresh cutting Aralia elata Seem. Methods:In order to explore the effects of high oxygen regulated packaging treatment on the sensory quality and physiological changes of fresh cutting A. elata, different combinations of high oxygen regulated packaging with carbon dioxide were carried out. Results:The results showed that 90% high-oxygen conditioning package treatment significantly reduced the changes of respiratory strength, hardness and color, inhibited the consumption of total sugar and total phenol, reduced the activities of enzyme browning related enzymes POD and PPO and MDA …

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The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou Oct 2022

The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou

Food and Machinery

Objective: This study aimed to explore the changes of hygroscopicity and quality characteristics of different freeze-dried (FD) fruits and vegetables in the storage.Methods: Taking four kinds of fruits and vegetables, including potato, king oyster mushroom, apple and white radish, as the research objects, the changes of microstructure, hygroscopicity, color and texture characteristics of the four kinds of freeze-dried fruits and vegetables were observed, and the correlation analysis was conducted.Results: The results showed that the cell structure of fresh fruits and vegetables was plump and regular; The FD apple slices was observed with relatively complete tissue structure, thicker cell …

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