Research Tools And Their Uses For Determining The Thermal Inactivation Kinetics Of Salmonella In Low-Moisture Foods,
2020
University of Nebraska-Lincoln
Research Tools And Their Uses For Determining The Thermal Inactivation Kinetics Of Salmonella In Low-Moisture Foods, Soon Kiat Lau
Department of Food Science and Technology: Dissertations, Theses, and Student Research
The reputation of low-moisture foods as safe foods has been crumbling over the past decade due to repeated involvement in foodborne illness outbreaks. Although various pasteurization technologies exist, a majority are thermal processes and have not been well-characterized for pasteurizing low-moisture foods. In addition, the nature of a low-moisture food matrix introduces various experimental complications that are not encountered in high-moisture foods. In this dissertation, the development, building instructions, and characterization of various open source tools for studying the inactivation kinetics of microorganisms in low-moisture foods are described. The first tool is the TDT Sandwich, a dry heating device for …
Inspecting Species And Freshness Of Fish Fillets Using Multimode Hyperspectral Imaging Techniques,
2020
USDA/ARS Environmental Microbial and Food Safety Laboratory
Inspecting Species And Freshness Of Fish Fillets Using Multimode Hyperspectral Imaging Techniques, Jianwei Qin, Fartash Vasefi, Rosalee S. Hellberg, Alireza Akhbardeh, Rachel B. Isaacs, Ayse Gamze Yilmaz, Chansong Hwang, Insuck Baek, Walter F. Schmidt, Moon S. Kim
Food Science Faculty Articles and Research
This study developed multimode hyperspectral imaging techniques to detect substitution and mislabeling of fish fillets. Line-scan hyperspectral images were collected from fish fillets in four modes, including reflectance in visible and nearinfrared (VNIR) region, fluorescence by 365 nm UV excitation, reflectance in short-wave infrared (SWIR) region, and Raman by 785 nm laser excitation. Fish fillets of six species (i.e., red snapper, vermilion snapper, Malabar snapper, summer flounder, white bass, and tilapia) were used for species differentiation and frozen-thawed red snapper fillets were used for freshness evaluation. A total of 24 machine learning classifiers were used for fish species and freshness …
The Role Of Diet In The Onset Of Depression: A Biochemical Connection Between Nutrition And Mental Health,
2020
Liberty University
The Role Of Diet In The Onset Of Depression: A Biochemical Connection Between Nutrition And Mental Health, Katlin Wildeman
Senior Honors Theses
Depression is a major clinical concern, having a complex onset and the presence of multiple, often unidentifiable causes. Depression affects millions of individuals worldwide, with a high prevalence in regions of the world with a Western-style diet as compared to regions with a Mediterranean diet. A Western-style diet consists of foods high in sugar, fat, and processed meats and grains, whereas the Mediterranean diet contains significantly more vegetables, fruits, lean meats, and whole grains. The link between diet and mental health disorders has implications for individuals of all ages who are hesitant to turn to medication. In addition to presenting …
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch,
2020
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 , China ；Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002 , China
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch, Chen Yue-Yu, Ou Yu-Jia, Zeng Hong-Liang, Zhang Yi, Zheng Bao-Dong
Food and Machinery
Effects of monosaccharide (glucose and fructose) on the retrogradation of lotus seed starch were studied from the aspects of crystal structure, molecular structure and molecular weight. The results of X-ray diffraction, nuclear magnetic resonance and infrared spectrum showed that glucose and fructose could inhibit the recrystallization of lotus seed starch. The crystallinity, double helix structure and short-range ordered structure decreased, and the proportion of amorphous area increased in the composite system, indicating that glucose and fructose might inhibit the retrogradation of starch. The inhibition of glucose on starch retrogradation was more significant than fructose, which might be related to the …
Isolation And Identification Of Lactic Acid Bacteria From Fermented Grain For Light-Baijiu Brewing And Study Of Their Autolysis Characteristic,
2020
College of Life Science, Shanxi Normal University, Linfen, Shanxi 041004 , China ；National EngineeringLaboratory for Grain Fermentation Technology and Technology, Jiangnan University, Wuxi, Jiangsu 214000 ,China
Isolation And Identification Of Lactic Acid Bacteria From Fermented Grain For Light-Baijiu Brewing And Study Of Their Autolysis Characteristic, Li Zhi-Qi, Shi Ying, Wang Meng-Meng, Mao Jian, Zhang Xiu-Hong
Food and Machinery
47 isolates with obvious calcium dissolving circle were screened from fermented grains for light-Baijiu brewing by MRS calcium carbonate medium. Through physiological and biochemical characteristics and 16S rDNA sequences, it was found that the closed lactic acid bacteria strains were 20 strains Lactobacillus brevis, 16 strains L. plantarum, 7 strains L. buchneri, and 4 strains L. pentosus, respectively. By turbidimetric method, the autolysis of 47 strains of lactic acid bacteria was determined, and their autolysis ranged from 5.01%~29.27%. There was no correlation between the autosolubility and species, showing strains specificity. The autolysis characteristic of the 9 strains …
Study On Intervention Effects Of Electrophilic Components From Xiaoheiyao Against Free Fatty Acid-Induced Steatosis In Hepg2 Cells,
2020
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 , China
Study On Intervention Effects Of Electrophilic Components From Xiaoheiyao Against Free Fatty Acid-Induced Steatosis In Hepg2 Cells, Dong Wen-Le, Jiang Yu-Ge, Xia Shu-Fang, Cao Cong-Cong, Zhao Wei, Cheng Xiang-Rong
Food and Machinery
The electrophilic components in Xiaoheiyao were knocked out by GSH functionalized magnetic nanoparticles (GSH-MNPs) and characterized by LC-MS analysis, and the effect and mechanism of the electrophilic components in Xiaoheiyao for reducing lipid accumulation and oxidative stress in hepatocytes were evaluated, based on free fatty acid (FFA)-induced HepG2 cells. The ethyl acetate fraction was determined as the most electrophilic components-enriched part of Xiaoheiyao. At the concentration of 0.5~2.0 μg/mL, the petroleum ether, ethyl acetate and water fractions of Xiaoheiyao exhibited the activities of decreasing hepatic lipid accumulation and ROS production, in which the ethyl acetate fraction showed the best activities. …
Changes Of Bioactive Substances And Antioxidant Properties Of Three Kinds Of Quinoa During Germination,
2020
State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 , China ；School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 , China
Changes Of Bioactive Substances And Antioxidant Properties Of Three Kinds Of Quinoa During Germination, Chen Yi-Sheng, Shu Lan-Ping, Xu Xue-Ming, Chen Zhong-Zhen, Hong Ting-Ting, Huang Cai-Hong, Wei Xiao, Chen Qi-Fei, Jin Ya-Mei
Food and Machinery
The antioxidant activity and content of bioactive substances, including γ- aminobutyric acid, epicatechin, epigallocatechin gallate, saponins and polyphenols, in black quinoa, red quinoa and white quinoa were studied in this study. The results showed that, after 72 h germination treatment, the content of γ-aminobutyric acid in black, red and white quinoa increased to 110.10, 157.40 and 135.70 mg/100 g at maximum, respectively. The increase rate of the epicatechin was the biggest, and they were found to be 7.11, 5.32 and 1.32 times, respectively. Among which, the content of epigallocatechin gallate increased by 4.23, 2.79 and 3.29 times, respectively. In …
Analysis On Volatile Components In Different Parts Of Hedychium Coroarium By Hs-Spme/Gc/Ms,
2020
China Tobacco Guizhou Industrial Co.,Ltd.,Guiyang,Guizhou 550009 ,China
Analysis On Volatile Components In Different Parts Of Hedychium Coroarium By Hs-Spme/Gc/Ms, Zhao Yang, Cheng Li, Du Ting, Ye Chong, Mao Han-Bing, Yang Zhan-Nan
Food and Machinery
The volatile components were extracted and identified by solid phase microextraction combined with gas chromatography-mass spectrometry (HS-SPME-GC/MS), and the relative content of components were analyzed by area normalization. The results showed that 57, 63, and 60 kinds of compounds were identified from the roots, stems and leaves, and flowers of H. coroarium, accounting for 83.864%, 66.624%, 86.912% of the total volatile components, respectively. Among which 36 kinds of were common. The content of β-pinene in the three parts was relatively high. Most of the volatile components isolated from ginger roots, stems and leaves, flowers are mites. In the development …
Study Of The Preparation And Thermal Degradation And Combustion Behavior Of Flame-Retardant Montmorillonite Ternary Coating On Reconstituted Tobacco Sheet,
2020
Technology Center, China Tobacco Sichuan Industrial Co., Ltd., Key Laboratory for Harmful Components and Tar Reduction in Cigarette of Sichuan Province, Chengdu, Sichuan 610066 , China
Study Of The Preparation And Thermal Degradation And Combustion Behavior Of Flame-Retardant Montmorillonite Ternary Coating On Reconstituted Tobacco Sheet, Li Dong-Liang, Gen Zong-Ze, Tan Lan-Lan, Cai Xin-Yue, Shao Ning, Hou Li, Qu Ya-Qing, Zhu Xiao-Lan
Food and Machinery
Reconstituted tobacco sheet (RTS) was first modified by ternary intumescent flame retardant (IFR) coating, composed of chitosan (CS), ammonium polyphosphate (APP), and montmorillonite (MMT) by basepaper coating techniques. The effects of composite coating on the combustion behavior and thermal degradation of RTS were studied by micro-scale combustion calorimetry (MCC) and TG-FTIR. MCC experiments confirmed that the CS-APP-MMT-RTS exhibited a 56.1% reduction in total heat release and a 42.8% reduction in peak heat release rate, relative to the uncoated RTS. TG-FTIR results showed that CS-APP-MMT coating reduced the maximum mass loss rate and the release of harmful gaseous products at the …
Rapid Detection Of Cadmium Based On Fluorescence Molecular Switch And Aptamer,
2020
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 , China
Rapid Detection Of Cadmium Based On Fluorescence Molecular Switch And Aptamer, Tu Dong-Kun, Lu Yue, Zheng Xiao-Liang, Huang Min-Li, Wang Yi-Jing, Zeng Shao-Xiao, Xu Hui
Food and Machinery
In order to study the fluorescent dye thiazole orange as a fluorescent molecular switch and a cadmium ion nucleic acid aptamer for the detection of cadmium ions. The effects were examined, from different pH values, thiazole orange-aptamer concentration ratio, binding time of thiazole orange to aptamer, and binding time of aptamer to cadmium ion on the fluorescence intensity of the system. The results showed that when the pH value was 7, the thiazole orange-aptamer concentration ratio was 7∶3, the binding time of thiazole orange and aptamer was 15 min, and the binding time of aptamer and cadmium ion was 20 …
The Improvement Strategies Of Punitive Compensationliability For Food Consumption,
2020
Changzhi University, Changzhi, Shanxi 046000 , China
The Improvement Strategies Of Punitive Compensationliability For Food Consumption, Pei Bao-Li
Food and Machinery
Many issues areexisting in the legislations about the punitive damages of food consumption. The punitive damages correspond to different types, whole the relevant regulations are scattered and disordered. Specifically, the uncertain foundation of the right to claim and the conflict rules in competition and cooperation are mostly concerned, and the disputes in cases of determining the subjects of legal rights and the subjects of responsibility matter significantly. By analyzing current regulations and cases, the resolutions of these deficiencies are proposed, and the foundation of the right to claim should be determined by the base number types of punitive damages. As …
Design And Simulation Research And Verification Of A New Bowl-Shaped Jellyfish Spiral Cutting System,
2020
School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian,Liaoning 116034 , China
Design And Simulation Research And Verification Of A New Bowl-Shaped Jellyfish Spiral Cutting System, Han Chuan-Long, Lu Jin-Shi, Tao Xue-Heng, Feng Yi-Ran, Zhong Sen-Miao, Wang Jing, Guo Shuai
Food and Machinery
In order to overcome the shortcomings of manually cutting the bowl-shaped jellyfish, with inefficient and costly, high consumption of energy and serious pollution, a new bowl-shaped jellyfish spiral cutting system driven by a servo electric cylinder was designed. The corresponding three-dimensional solid model was constructed by using SolidWorks software and the dynamics simulation of the spiral cutting system was completed by HyperMesh/LS-DYNA software. Moreover, the process of cutting jellyfish with spiral cutter, the process of jellyfish skin failure and knife path formation were dynamically simulated. The change curve of shear force, and the characteristics of stress, strain and dynamic during …
Effects Of The Parameter Variations Of The Cigarette-Making Machine On Slim Cigarette Producing,
2020
Technology Center, Shanghai Tobacco Group Co., Ltd., Shanghai 200082 , China
Effects Of The Parameter Variations Of The Cigarette-Making Machine On Slim Cigarette Producing, Zhou Kai-Min, Zhang Hao-Bo, He Jin, Si Yong, Shu Ru-Xin
Food and Machinery
In order to improve the production efficiency of slim cigarette, the stability of cigarette physical characteristics and further understand the variations between operating parameters and cigarette making condition, influence of needle roller overfeed, air fan pressure and stem separation air pressure on slim cigarette making machine operating conditions and cigarette physical characteristics were studied by the methods of 3 factors and 3 levels orthogonal design and mathematical statistics. The results are as follows: ① needle roller overfeed, air fan pressure and stem separation air pressure, the three cigarette making machine operating parameters, have different effects on slim cigarette making machine …
Defect Detection Method Of Chopsticks Based On Improved Yolov3 Algorithm,
2020
Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500 , China
Defect Detection Method Of Chopsticks Based On Improved Yolov3 Algorithm, Chen Jun-Song, He Zi-Fen, Zhang Yin-Hui
Food and Machinery
The current chopstick quality inspection machines on the market cannot effectively sort chopped chopsticks with burrs. Aiming at this problem, in this paper, a method for detecting burr defects of chopsticks based on improved YOLOv3 algorithm is proposed. By removing the 32x down-sampling detection layer in the YOLOv3 network multi-scale detection, adding a 4x down-sampling layer in the YOLOv3 network to further obtain deep features. Thereafter, it was fused with the shallow features in the second down-sampling, and let the network learn the deep and shallow features and re-cluster the anchor box size, with changing the hyper-parameters of the YOLOv3 …
Establishment And Prediction Of Growth Kinetics And Shelf-Life Model Of Specific Spoilage Organisms In Mackerel At Cold Chain Conditions,
2020
Ningbo Institute for Food Control, Ningbo, Zhejiang 315048 , China
Establishment And Prediction Of Growth Kinetics And Shelf-Life Model Of Specific Spoilage Organisms In Mackerel At Cold Chain Conditions, Xing Jia-Li, Xu Xiao-Rong, Cheng Hai, Zheng Rui-Xing, Zhang Shu-Fen, Fu Xiao, Zhou Zi-Yan, Mao Ling-Yan
Food and Machinery
The purpose of this paper was to predict the growth dynamics of dominant spoilage bacteria for Spanish mackerel in different cold-chain logistics temperatures. The total viable counts (TVC), Shewanella counts and Pseudomonas counts were analyzed respectively, and the total volatile base nitrogen (TVB-N) and sensory quality index(QI)value at the end of the shelf life of Spanish mackerel were evaluated at 0, 4, 10 ℃ cold-chain logistics simulation. On the basis of the dynamic change of SSO with modified Gompertz equation, Belehradek equation was used to construct the prediction models of growth and shelf life for SSO in Spanish mackerel at …
Simulation Of Sensory Quality Of Tobacco Leaf Alcoholization Based On Bp Neural Network,
2020
Technology Center, China Tobacco Sichuan Industrial Co., Ltd., Chengdu, Sichuan 610066 , China
Simulation Of Sensory Quality Of Tobacco Leaf Alcoholization Based On Bp Neural Network, Deng Yu-Xiang, Luo Cheng, Li Dong-Liang, Yang Jie, Zhou Dong, Du Wei, Chen Si-Ang
Food and Machinery
Establish a prediction model for sensory quality of tobacco leaf alcoholization, which is used to predict sensory changes in the process of tobacco leaf alcoholization process, breaking through the traditional empirical method to guide tobacco leaf inventory turnover and formulation use. In this paper, 18 alcoholic sensory scores of the 18 different samples in 4 warehouses were taken as initial samples at intervals of 6 months, totally 36 months. Firstly, Through factor analysis, the tobacco alcoholization level is divided, and then to perform BP neural network test and prediction,the results show that this model is feasible and effective for predicting …
Effects Of A Formula Containing Vitamin B On Ameliorates Anxious/Depression-Like Behaviors In An C57bl/6 Mice Model,
2020
College of Food Science and Technology, South China University of Technology, Guangzhou,Guangdong 510640 , China
Effects Of A Formula Containing Vitamin B On Ameliorates Anxious/Depression-Like Behaviors In An C57bl/6 Mice Model, Zhu Xi-Ping, Li Wen-Zhi, Tao Qian, He Wen-Jiang, Cui Chun
Food and Machinery
Investigated effects of vitamin B complex TRP peptides and SOD on the anti-oxidative activity in brain tissue, serum inflammatory factor levels and reverse anxious/depression-like behaviors. Vitamin B complex TRP peptide and SOD (VB3︰ VB6︰TRP peptide︰SOD = 2︰10︰3︰4; VBPS) high, medium and low gavage doses were 260, 195, 130 mg/(kg·d), respectively. Studies showed that VBPS could reverse the anxious/depression-like behaviors and the slow body weight gain, with VBPS at a high dose being more effective. VBPS showed to control the effects of serum inflammatory cytokines (TNF-α, IL-6, IL-1β and IFN-γ), decrease malondialdehyde (MDA) levels and increase superoxide …
Optimization Of Ultrasonic-Assisted Extraction Of Total Flavonoids From Leaves Of Phyllanthus Emblica And Its Antioxidant Capacity,
2020
College of Biology and Food Engineering, Guangxi Normal University for Nationalities, Chongzuo, Guangxi 532200 , China ；Guangxi Colleges and Universities Key Laboratory Breeding Base of Chemistry of GuangxiSouthwest Plant Resources, Chongzuo, Guangxi 532
Optimization Of Ultrasonic-Assisted Extraction Of Total Flavonoids From Leaves Of Phyllanthus Emblica And Its Antioxidant Capacity, Du Li-Juan, Su Xiu-Fang, Huang Cheng-Yin
Food and Machinery
Optimization ultrasonic-assisted extraction of total flavonoid from leaves of phyllanthus emblica was investigated and its antioxidant capacity was determined. Through single factor experiment and orthogonal experiment, the optimization of ultrasonic-assisted extraction of total flavonoids was determined as follows, including the ratio of material to liquid 1:25 (g/mL), ethanol concentration 60%, ultrasonic power 70 W, and extraction at 60 ℃ for 20 min. Under the control of these conditions, the extraction rate of the total flavonoids from leaves of P. emblica was as high as 14.57%. Moreover, the total flavonoids from leaves of P. emblica were found good scavenging effect. With …
Impacts Of Microwave Treatment On Physicochemical Properties Of Black Rice Wine,
2020
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 ,China
Impacts Of Microwave Treatment On Physicochemical Properties Of Black Rice Wine, Chen Zhou-Yao, Yuan Jiang-Feng, Hou Zeng-Chao, Wang Da-Hong, Li Pei-Yan, Gong Ming-Gui, Zhang Bin
Food and Machinery
Microwave technology was applied to process black rice wine, effects of microwave power, microwave treatment temperature and microwave time on total phenolic content, total flavonoid content, total anthocyanins, colour and antioxidant activity of black rice wine were investigated. The results showed that the total phenol content, total flavonoids content, total anthocyanin content and antioxidant activity of the black rice wine obviously decreased after microwave treatment the black rice wine compared with the untreated black rice wine, and microwave treatment had little effect on the color change of black rice wine. The DPPH radical scavenging capacity, superoxide anion radical scavenging capacity, …
Preparation And Quality Analysis Of Low-Hardness Beef Tallow,
2020
College of Food Science and Biological Engineering, Tianjin Agricultural University, Tianjin 300384 , China ；Tianjin Engineering and Technology Research Center of Agricultural Products Processing, Tianjin 300384 ,China ；Tianjin Agricultural Innovation D
Preparation And Quality Analysis Of Low-Hardness Beef Tallow, Liu Jia-Min, Yao Di, He Xin-Yi, Yan Xi-Chun, Li Xu, Liu Xiao-Dong
Food and Machinery
In order to develop a kind of low-hardness blended beef tallow, the oxidation induction time of blended beef tallow and rapeseed oil was determined by Rancimat method, and the preservation period of blended beef tallow was calculated preliminarily. The hardness of the blended beef tallow at common temperature was measured by texture analyzer and compared with beef tallow and lard. The results showed that the oxidation induction time was (18.92±0.10)~(39.90±0.42) h, and the oxidation stability was between rapeseed oil and beef tallow. At a beef tallow ratio of 40% to 60%, the hardness of blended beef tallow was close to …
