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Articles 2101 - 2130 of 5782
Full-Text Articles in Food Processing
Effects Of Retail Case Environment And Led Lighting Temperature On Color Of Ground Beef Patties, Mesa Kutz
Effects Of Retail Case Environment And Led Lighting Temperature On Color Of Ground Beef Patties, Mesa Kutz
Animal Science Undergraduate Honors Theses
The objective of this study was to explore different type of retail cases and case environments, primarily lighting, to quantify the impact on shelf life. Coarse ground 80:20 beef from a local retail establishment was acquired between 7 and 10 d from the box date and fine ground through a 9.5 mm grinder plate, and then formed into 150.25 g patties with an automatic patty forming machine. Each patty was then individually packaged in PVC-overwrap packages and randomly assigned to one of the four different treatments: open, multideck cases with 3000 K lighting (OPEN3000),open 3500 K lighting (OPEN3500),enclosed, …
Color And Structural Modifications Of Alkaline Extracted Sunflower Protein Concentrates And Isolates Using L-Cysteine And Glutathione, Akira Ishii
Food Science (MS) Theses
Sunflower protein can be extracted at alkaline pH with sulfites or organic solvent de-phenolization of sunflower seed meals if greening is unwanted. This greening is promoted at alkaline pH when chlorogenic acid (CGA) oxidizes and reacts with free amine groups from amino acids, such as lysine. Thiol-containing dough conditioners: L-cysteine hydrochloride and reduced glutathione (GSH) were investigated as an alternative de-greening strategy to de-phenolization. Varying pH from 7 to 11 and concentration of 0.82 to 5.6 mM were randomly assigned by Response Surface Methodology (RSM) to evaluate the combined and additive greening inhibition effect of thiol and extraction pH. The …
Optimization Of Broken Rice Consumption Through Understanding The Confluence Of Sensory And Economic Preferences, Matthew Greer Richardson
Optimization Of Broken Rice Consumption Through Understanding The Confluence Of Sensory And Economic Preferences, Matthew Greer Richardson
Graduate Theses and Dissertations
The authors were perplexed by the seeming dichotomy between the majority 70% of Haitian consumers being chronically food insecure, but still preferring to pay premium international market prices for long-grain rice that constitutes 30% of the calories in this poorest nation in the Western Hemisphere. The aim of this study was to determine the optimal percent broken rice in regards to price specifically to Haiti. Optimization between quality and price point is seen as the best rice for the price, and can be found through combining individual preferences with willingness to pay. Broken rice (brokens) garner a significantly discounted price …
A Systematic Literature Review Of Sanitizer Efficacy To Remove Listeria Monocytogenes, Salmonella Spp., And Shiga Toxin-Producing Escherichia Coli Biofilms From Food Processing Surfaces, Ashlynn Robinson
Food Science Undergraduate Honors Theses
Sanitizing in food production environments is essential to prevent, reduce, and/or eliminate foodborne pathogens. Biofilms consist of one or more different types of microorganisms and can grow on numerous types of surfaces (Costerton,1999). SLRs provide transparency about what steps were taken to acquire the sources included in the analysis (Liberati et al.,2009; Moher et al., 2009). The references obtained from the databases were based on specific eligibility criteria to ensure reproducible results. The inclusion criteria included six surface types (stainless steel, glass, plastic, polyurethane, PVC, rubber), seven sanitizer types (anionic acid, benzalkonium chloride, iodine, iodophor, peracetic acid, quaternary ammonium, and …
Combatting Inefficient Food Waste In Nwa With Food Loops, Davis Ehlers
Combatting Inefficient Food Waste In Nwa With Food Loops, Davis Ehlers
Economics Undergraduate Honors Theses
It is no longer a speculation that the actions of the human race have had detrimental impacts on the environment. As consumers become increasingly aware of this fact- and the fact that many of the issues are caused by bad business and environmental management, many individuals are wondering what they can do about it. This growing area of demand is where many businesses have begun to take on the challenge of being profitable while benefiting the environment at the same time, and some have even found ways to create a profit by engaging in activities that directly benefit the environment. …
Food Sensitivity In Individuals With Altered And Unaltered Digestive Tracts, Walker Carson
Food Sensitivity In Individuals With Altered And Unaltered Digestive Tracts, Walker Carson
Department of Food Science and Technology: Dissertations, Theses, and Student Research
Immunoglobulin G (IgG) against food proteins has become the subject of much discussion with regards to its role in adverse food reactions. An estimated 20% of the population suffers from some type of food intolerance. Food sensitivity can present with a vast range of symptoms and severities. Diet can have a substantial impact on the wellbeing of individuals with diseases of the gastrointestinal tract, such as Crohn’s disease or ulcerative colitis. Incidentally, these diseases have been associated with elevated levels of food-specific IgG as well an increased likelihood of food sensitivity. The presence of food-specific IgG and food sensitivity in …
Evaluation Of Irrigation And Nutrient Management Strategies In Rice Using Alternative Irrigation Methods, Justin Lee Chlapecka
Evaluation Of Irrigation And Nutrient Management Strategies In Rice Using Alternative Irrigation Methods, Justin Lee Chlapecka
Graduate Theses and Dissertations
As water resources gain value across the Mid-South, alternative irrigation strategies of rice (Oryza sativa L.) have garnered increasing attention. In 2015, an estimated 1.7% of Arkansas rice hectarage used alternate wetting and drying (AWD) irrigation and 0.9% used furrow irrigation. As of 2020, 2.5% used AWD and 16.9% used furrow irrigation, the latter accounting for near 99,000 ha in Arkansas. Little information exists in the scientific literature in relation to management of rice grown in the Mid-South without a conventional flood. This fact coupled with the rapid adoption rate, especially for furrow-irrigated rice (FIR), during the last five years …
Research Progress On Formation Mechanism And Influencing Factors Of Egg Yolk Gel, Zhang Gen-Sheng, Xu Yi-Meng, Yu Shi-You, Pan Lei
Research Progress On Formation Mechanism And Influencing Factors Of Egg Yolk Gel, Zhang Gen-Sheng, Xu Yi-Meng, Yu Shi-You, Pan Lei
Food and Machinery
In this review, gelation process, physicochemical properties and formation mechanism of egg yolk gel induced by heat, alkali and freezing were introduced. On this basis, the effects of different factors on heat-induced gel, alkali-induced gel and freezing-induced gel were elaborated, and the research direction of egg yolk gel was prospected.
Effects Of Ultrasound-Assisted Glycation On The Allergenicity Of Β-Lactoglobulin During Digestion, Ma Qiu-Ping, Wang Hui, Tu Zong-Cai, Wen Ping-Wei, Hu Yue-Ming
Effects Of Ultrasound-Assisted Glycation On The Allergenicity Of Β-Lactoglobulin During Digestion, Ma Qiu-Ping, Wang Hui, Tu Zong-Cai, Wen Ping-Wei, Hu Yue-Ming
Food and Machinery
The method of indirect competitive ELISA, scanning electron microscopy (SEM) and dynamic light scattering (DLS) were used to study the ultrasound-assisted glycation with lactose (UAG) on changes in allergenicity and structure of β-lactoglobulin (β-Lg) during digestion in vitro. The results showed that the allergenicity and the degree of hydrolysis of UAG modified β-Lg had a reduced during gastrointestinal digestion. Glycation limited β-Lg to form a smaller particle structure during gastric digestion, then aggregated during intestinal digestion. The fluorescence intensity first increased and then decreased, and the maximum emission wavelength appeared red shift. These results indicated that UAG modification could effectively …
Study On Quality Kinetics Of Fermented Sour Meat During Cooking, Wu Hui-Lin, Li Miao-Yun, Zhao Li-Jun, Zhao Gai-Ming, Zhu Yao-Di
Study On Quality Kinetics Of Fermented Sour Meat During Cooking, Wu Hui-Lin, Li Miao-Yun, Zhao Li-Jun, Zhao Gai-Ming, Zhu Yao-Di
Food and Machinery
Kinetic analysis was carried out on the dynamic changes of ripening factors (color, shear force) and superheating factors (water activity, water content) during the heating process of fermented sour meat in 70~80 ℃water bath. The results showed that the changes of ripening factor (color, shear force) and superheating factor (water activity, water content) of fermented sour meat were all in accordance with the first-order kinetic equation, the Z value of brightness value was 63.751 ℃ and the Ea value was 4.016 kJ/mol; The Z value of redness change was 35.500 ℃, Ea value was 4.029 kJ/mol, and the …
Analysis Of Fatty Acid Profile In Metabolites And Cells Of Five Bifidobacterium Strains By Gc-Ms, Chen Shi-Yang, Liu Feng-Ying, Chen Hui-Min, Chen Li-Jun, Chen Shu-Xing
Analysis Of Fatty Acid Profile In Metabolites And Cells Of Five Bifidobacterium Strains By Gc-Ms, Chen Shi-Yang, Liu Feng-Ying, Chen Hui-Min, Chen Li-Jun, Chen Shu-Xing
Food and Machinery
Gas chromatography-mass spectrometry (GC-MS) was used to analyze fatty acid profile in metabolites and cells of five strains of Bifidobacterium. The results showed that the fatty acid content of different Bifidobacterium was significantly different among the metabolites, and there were some differences among the cells. Differences of fatty acid were also found among the same Bifidobacteriium strains derived from different sources. Methyl palmitate (C16:0), methyl lignocerate (C24:0), and methyl stearate (C18:0) were the main fatty acids in metabolites and cells of the five strains. Among them, the C16:0 was significantly different (P＜0.05), and …
The Effect Of Ph And Buffer Systems On The Inhibition Of Lipoxygenase Activity By Plant Polyphenols, Ye Feng-Ling, Jia Li-Rong, He Qiang, Dong Yi
The Effect Of Ph And Buffer Systems On The Inhibition Of Lipoxygenase Activity By Plant Polyphenols, Ye Feng-Ling, Jia Li-Rong, He Qiang, Dong Yi
Food and Machinery
In order to optimize the Ultraviolet (UV) spectrophotometric method for determination of polyphenols inhibiting LOX activity, and to explore the influences of the buffer systems and pH on LOX enzyme activity and polyphenol auto-oxidation, this paper studied the changes of LOX enzyme activity and the auto-oxidation of gallic acid, quercetin, catechin and 3,4-dihydroxyphenylacetic acid under different buffer systems and pH conditions. The results showed that the activity of LOX was stronger under alkaline conditions, and the 4 polyphenols had the weakest self-oxidation in the borate system and the strongest self-oxidation in the Tris-HCl system. The higher the pH in each …
Rheological Properties Of Fenugreek Gum On Improving The Safety Of Drinking Water In Nursing Dysphagia, Hao Lu-Lu, Wang Ling, Shang Long-Chen, Li Bin
Rheological Properties Of Fenugreek Gum On Improving The Safety Of Drinking Water In Nursing Dysphagia, Hao Lu-Lu, Wang Ling, Shang Long-Chen, Li Bin
Food and Machinery
In this paper, according to the American Dysphagia Diet standard, based on the viscosity at 50 s-1, fenugreek gum was prepared into thickening fluids with viscosity of 180 cP(nectar),1 000 cP(honey) and 2 500 cP(pudding), that the rheological properties had been systematically studied to evaluate the potential of fenugreek gum in improving the safe drinking water of patients with dysphagia. And then the rheological properties of fenugreek gum prepared at different temperatures were further explored. The results showed that the dissolution temperature was the key to whether the rheological properties of fenugreek gum meet the requirements of drinking …
Fluorescence Aptasensor Detection Of Chloramphenicol Based On Mno2 Nanosheet And Exo-I, Ma Peng-Fei, Qi Shuo, Lu Yan, Zhou You, Wang Zhou-Ping
Fluorescence Aptasensor Detection Of Chloramphenicol Based On Mno2 Nanosheet And Exo-I, Ma Peng-Fei, Qi Shuo, Lu Yan, Zhou You, Wang Zhou-Ping
Food and Machinery
In order to develop rapid detection method for chloramphenicol in food, in this study, a novel chloramphenicol aptasensor was constructed based on fluorescence quenching ability of MnO2 nanosheet and fluorescence amplification ability of Exo-I digestion. Results showed that under optimal fluorescence detection conditions of 50 nmol/L concentration of aptamer, 0.05 mg/mL concentration of MnO2 nanosheet, 0.4 U/μL concentration of Exo-I and Exo-I digestion time of 50 minutes, and the fluorescence intensity had a good linear relationship with the concentration of chloramphenicol (R2=0.995). The linear range of detection was 0.1~80.0 nmol/L with the detection limit of 0.08 …
Determination Of Total Fluorine In Tea By Nuclear Magnetic Resonance Spectroscopy Combined With Oxygen Bomb Combustion, Zhou Mi, Han Zhi, Zhu Zheng-Wei, Zhu Song-Song, Wang Hui-Xia, Jiang Feng, Zhu Qian
Determination Of Total Fluorine In Tea By Nuclear Magnetic Resonance Spectroscopy Combined With Oxygen Bomb Combustion, Zhou Mi, Han Zhi, Zhu Zheng-Wei, Zhu Song-Song, Wang Hui-Xia, Jiang Feng, Zhu Qian
Food and Machinery
Quantitative analysis of total fluorine in tea was established by using 19F quantitative nuclear magnetic resonance combined with the pretreatment method of oxygen bomb combustion. The 19F qNMR method used the signal characteristic of fluoride ion at δ=-119 as the qualitative peak and the signal characteristic of trifluoroacetic acid at δ=-75 as the internal standard peak. The fluorine-containing substances in tea sample was burned by oxygen bomb and converted into inorganic fluorine. Mixed metal chelating agent which included sodium citrate and disodium EDTA was added to eliminate interference and then the absolute content of fluoride ion in tea …
Detection Of Foodborne Pathogenic Bacteria Based On Hyperspectral Imaging, Duan Peng-Sheng, Xu Jin-Chai, Chen Yi-Lei, Ye Da-Peng, Weng Hai-Yong
Detection Of Foodborne Pathogenic Bacteria Based On Hyperspectral Imaging, Duan Peng-Sheng, Xu Jin-Chai, Chen Yi-Lei, Ye Da-Peng, Weng Hai-Yong
Food and Machinery
Aiming at the problem of foodborne pathogenic bacteria detection process is time-consuming, composed a application highlights like technology obtained 12,18,24 h 3 phase 5 kinds of pathogenic bacteria [Staphylococcus aureus (S. aureus), Listeria monocytogenes (LM), Diarrheagenic e.coli (DEC), Salmonella enteritidis (SE) and Shigella spp flexneri (S. flexneri)] of hyperspectral image, using successive projections algorithm (SPA) in combination with relevant analysis (CA) to extract various growing pathogenic bacteria sensitive wave bands and established the least squares support vector machines (LS-SVM) discriminant model. The results showed that the reflectivity of the five types of pathogens to different wavelengths of light was different. …
Administrative Supervision System Of Internet Food Trade In Germany And The Enlightenment To China, Shao Ru-Hua
Administrative Supervision System Of Internet Food Trade In Germany And The Enlightenment To China, Shao Ru-Hua
Food and Machinery
The administrative supervision system for online food trade in Germany was built by German Federal Consumer Protection and Food Safety Office mainly based on 《German Food, Commodity and Feed Law》and other relevant laws and regulations, the German official monitoring center of e-commerce in food and D21 Quality Criterion. From the perspective of German mature administrative supervision system for online food trade, China has not yet set up an administrative agency which unifies and coordinates organization for online food safety, a unified operation platform for the administrative supervision of online food trade and a widely acknowledged quality certification criterion. Therefore, establishing …
Uncertainty Evaluation For Determination Of Free Gossypol In Vegetable Oil By High Performance Liquid Chromatography, Long Jin-Lin, Wang Chun-Lin, Tao Yin-Feng, Sun Xiao-Han, Li Shuo
Uncertainty Evaluation For Determination Of Free Gossypol In Vegetable Oil By High Performance Liquid Chromatography, Long Jin-Lin, Wang Chun-Lin, Tao Yin-Feng, Sun Xiao-Han, Li Shuo
Food and Machinery
According to the detection method of free gossypol in vegetable oil，this paper establishes a mathematical model of uncertainty evaluation for determination of free gossypol in vegetable oil . The main sources of uncertaintyin measurement arising from procedure of testing were analyzed and evaluated. The evaluation results showed that the fitting of standard curve, the performance of liquid chromatograph and the repeatability of sample pretreatment made great contribution to the uncertainty of free gossypol detection results. When the content of free gossypol in edible oil was 48 mg/kg, the expanded uncertainty was 5 mg/kg (k=2).
Comprehensive Evaluation Model Of Heavy Metal Pollution In Meat Products Based On Best-Worst Method And Entropy Method, Wang Xian-Fa, Chen Yi, Sun Yue-Hong
Comprehensive Evaluation Model Of Heavy Metal Pollution In Meat Products Based On Best-Worst Method And Entropy Method, Wang Xian-Fa, Chen Yi, Sun Yue-Hong
Food and Machinery
In order to evaluate the degree of heavy metal (Cd, Cr, Pb, As) pollution in different meat products and different regions comprehensively and quantitatively, a comprehensive evaluation method of heavy metal pollution in meat products based on the best-worst method (BWM)-entropy(E) model was proposed. Firstly, Building a comprehensive evaluation index system based on heavy metal toxicity and content. Then, the best-worst method was applied to evaluate the degree of heavy metal pollution in various meat products. Finally, the entropy method was used to comprehensively evaluate the degree of heavy metal pollution in different regions. The case study used in this …
International Experiences And Inspirations Of Dairy Product Safety And Quality Supervision, Zhang Li-Ping
International Experiences And Inspirations Of Dairy Product Safety And Quality Supervision, Zhang Li-Ping
Food and Machinery
At present, the quality and safety supervision of dairy products in China are facing many challenges. Some successful experiences and advanced technologies in dairy product quality and safety supervision, safety risk assessment, quality standards and safety standards, management mode, and the examination system of in developed countries, such as Europe and the United States, were reviewed. It was concluded that, to improve the Chinese dairy products quality and safety supervision system, the integrated use of economic, administrative and legal means should be used to strengthen the macro-control. Moreover, strategies including constructing a safety-oriented inspection and testing system, speeding up technical …
Conjugate Tooth Profile Solution And Meshing Analysis Of Harmonic Drive Based On Envelope Theory, Li Peng-Chao, He Xue-Ming, Lu Li-Xin, Lin Zi-Dong
Conjugate Tooth Profile Solution And Meshing Analysis Of Harmonic Drive Based On Envelope Theory, Li Peng-Chao, He Xue-Ming, Lu Li-Xin, Lin Zi-Dong
Food and Machinery
In order to solve the problem of complex derivation of conjugate tooth profile in harmonic drive, a method based on the trajectory envelope of flexspline is used to solve the conjugate tooth profile, and the different tooth height along the axial direction of the flexspline profile is adjusted to avoid interference between the flexible gear and the conjugate steel gear. In order to analyze the influence of tooth root circle radius and torque on the stress of flexspline, a multi-body contact model was established by ANSYS Workbench to explore the influence of root circle radius and torque on the stress …
Anomaly Vibration Detection Method Of The Refrigeration Compressor Based On Autoencoder, Wang Yuan-Tao, Feng Tao, Sun Qia, Wang Jing, Wang Yi-Han
Anomaly Vibration Detection Method Of The Refrigeration Compressor Based On Autoencoder, Wang Yuan-Tao, Feng Tao, Sun Qia, Wang Jing, Wang Yi-Han
Food and Machinery
The compressor is the core component of refrigeration equipment. This paper proposeed a method of anomaly vibration detection of refrigeration compressor based on autoencoder technology in order to solve the quality control problems in the production process of refrigeration compressor. The principle and process of anomaly vibration detection were given, based on autoencoder and the acquisition method of compressor vibration signal sample. The relationship was studied between the mean square error of the input and output of the autoencoder and the distribution of the signal samples. By means of the autoencoder model, the decision fundament of the abnormal vibration of …
Dynamic Performance Analysis Of The Herringbone Transmission System Of Konjac Fine Flour, Hu Qing-Ming, Hou Jun-Peng, Xu Chang-Shun, Sun Dan-Dan, Yang Ming, Bai Song, Guo Jian-Hua
Dynamic Performance Analysis Of The Herringbone Transmission System Of Konjac Fine Flour, Hu Qing-Ming, Hou Jun-Peng, Xu Chang-Shun, Sun Dan-Dan, Yang Ming, Bai Song, Guo Jian-Hua
Food and Machinery
Taking the fourth-stage transmission system of the konjac flour machine as the research object, a multi-body dynamic model was established based on the straight tooth synchronous belt and double helical synchronous belt with new profile, and the influence of the tooth line shape on the belt tooth stress and system vibration was analyzed. Then the influence of the structural parameters of the helix angle and the dislocation coefficient between the teeth on the dynamic performance of the transmission system were investigated. The results showed that when the toothed helix angle β was 30° with the inter-tooth dislocation coefficient k of …
Improvement On Cigarette Guide Plate Device Of Yj19 Cigarette Maker, Wu Shu-Qing, Sun Yong, Yang Fang, Huang Xue-Yan
Improvement On Cigarette Guide Plate Device Of Yj19 Cigarette Maker, Wu Shu-Qing, Sun Yong, Yang Fang, Huang Xue-Yan
Food and Machinery
In order to solve the problem of water pollution and cigarette wrinkle at the cigarette guide plate device of YJ19 Cigarette Maker, the structure of the cigarette guide plate device was improved by combining the arc groove with the air suction hole. The cigarette transferring mode was changed from closed type to open type, and then the results were validated. The experiment results showed that the unclean defect rate of cigarette lap was reduced from 1.45% to 0, and the wrinkle defect rate of cigarette decreased from 1.16% to 0.30%. The quality of cigarettes has been improved.
Development Of A Continuous Laser Scanning Electromechanical System For Brown Rice Profile Cross Section, Yang Si-Ping, Tang Xiao-Hua, Li Tian-Jiao, Zheng Long-An, An Jia-Qiang
Development Of A Continuous Laser Scanning Electromechanical System For Brown Rice Profile Cross Section, Yang Si-Ping, Tang Xiao-Hua, Li Tian-Jiao, Zheng Long-An, An Jia-Qiang
Food and Machinery
A laser scanning contour measuring device for brown rice was developed. The mechanism principle of the device was adapted to the point cloud data collection representing the geometric characteristics of brown rice. It has the functions of mutually vertical triaxial movement and two-axis rotation to realize the circular sweep of the ellipsoid of brown rice, the deflection of the embryo and the linear sweep of its main section. The ellipsoid of brown rice was measured by circular discrete and continuous laser scanning. The results showed that the continuous and discrete scanning data were consistent in describing the surface of brown …
Flat Design Process Of Cocktail Packaging Based On The Whole Life Cycle Concept, Liu Zong-Ming, Li Chun-Ping, Chen Wei
Flat Design Process Of Cocktail Packaging Based On The Whole Life Cycle Concept, Liu Zong-Ming, Li Chun-Ping, Chen Wei
Food and Machinery
Combined with the concept of flat and the concept of full life cycle, the whole life cycle of cocktail packaging was proposed. Through the analysis of typical design cases, the whole life cycle of flat cocktail packaging was explained, and a complete design process of flat cocktail packaging was constructed. Taking the design of self-created cocktail brand as an example, the flat design process was verified experimentally. The results show that the flat design process is helpful for designers to judge and design flat packaging in the whole life cycle.
Analysis Of Tea Brand Packaging The Visual Expression From The Perspective Of Cultural Gene, Xie Qi, Xu Xin-Yi
Analysis Of Tea Brand Packaging The Visual Expression From The Perspective Of Cultural Gene, Xie Qi, Xu Xin-Yi
Food and Machinery
From the perspective of design, the cultural gene method was introduced to collect and sort out The Tea Road cultural gene. The tea brand packaging of The Tea Road in Hunan and Hubei was used as an example, the application types and the visual expression in its design were analyzed. Our study would provide new ideas for the packaging design of different tea brands.
International Experience And Enlightenment Of The Guiding Stars Front Of Package Labeling, Huang Ze-Ying, Huang Bei-Xun
International Experience And Enlightenment Of The Guiding Stars Front Of Package Labeling, Huang Ze-Ying, Huang Bei-Xun
Food and Machinery
This study elaborated nutritional evaluation algorithm and its characteristics, the promotion, the product search database, publicity and education activities, implementation effect of Guiding Stars labeling, summarized three enlightenments for Chinese enterprises to enter the field of FOP labeling certification, and put forward policy suggestions to promote enterprises to carry out FOP labeling certification.
Effect Of Storage Conditions On Protein Quality Of Walnut Kernel, Peng Wu, Wang Wei-Qing, Wang Ping, Yu Xiong-Wei, Fu Qing-Li, Li Shu-Gang
Effect Of Storage Conditions On Protein Quality Of Walnut Kernel, Peng Wu, Wang Wei-Qing, Wang Ping, Yu Xiong-Wei, Fu Qing-Li, Li Shu-Gang
Food and Machinery
Walnut kernel was used to research the influence of temperature and vacuum degree on its protein structure and function properties. The results showed that the quality of walnut kernel protein was significantly affected by factors of temperature and vacuum, and the influence degree of these factors was valued as: temperature > vacuum, constant temperature (35 ℃) > room temperature (25 ℃)> refrigeration (4 ℃). Moreover, with the extension of storage time, the content of sulfhydryl groups in walnut kernel protein decreased, and the content of disulfide bonds and carbonyl compounds increased. The results obtained from electrophoresis and infrared analyses indicated that the …
Study On Drying Characteristics And Drying Kinetic Model Of Kiwi Fruit Slices In Fluidized Bed, Zou San-Quan, Liu Xian-Xi, Zhao Zhen-Chao, Zhang Xue-Bo
Study On Drying Characteristics And Drying Kinetic Model Of Kiwi Fruit Slices In Fluidized Bed, Zou San-Quan, Liu Xian-Xi, Zhao Zhen-Chao, Zhang Xue-Bo
Food and Machinery
In order to improve the drying quality and shorten the drying time of kiwifruit slices, the effects were studied in different temperatures (55, 65, 75, 85 ℃), wind speed (1.5, 2.5, 3.5, 4.5 m/s) and thickness (5, 10, 15 mm) on the hot air drying curve, water effective diffusion coefficient and drying activation energy of kiwifruit slices. The results showed that the whole drying process of kiwifruit slices belonged to reduced-speed drying, and the effective water diffusion coefficient was 1.296 39×10-9 ~4.589 94×10-9 m2/s, which increased with the increase of temperature and wind speed, and decreased with the …