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Articles 2821 - 2850 of 5215

Full-Text Articles in Food Biotechnology

Studies On The Rheological, Bubble Microstructure And Baking Properties Of The Low-Fat Cake With Propylene Glycol Esters, Wang Jiabao, Chen Cheng, Wang Feng, Hao Yuehui, Huang Jinxin, Chen Junmin, Huang Weining, Akihiro Ogawa May 2019

Studies On The Rheological, Bubble Microstructure And Baking Properties Of The Low-Fat Cake With Propylene Glycol Esters, Wang Jiabao, Chen Cheng, Wang Feng, Hao Yuehui, Huang Jinxin, Chen Junmin, Huang Weining, Akihiro Ogawa

Food and Machinery

This study was conducted to evaluate the effect of new propylene glycol esters emulsifier on the specific gravity, viscosity, rheology, microstructure of batter and baking characteristics of low-fat cake. The results showed that propylene glycol esters increased the surface tension of oil and promoted changes in fat structure to the α crystalline form as observed by XRD. The small bubbles were protected by propylene glycol esters from defoaming caused by oil. The number of bubbles increased by 1.87 times. Propylene glycol ester significantly increased the specific volume and decreased hardness of low-fat cake.

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Effect Of Tea Polyphenols On Antioxidation And Starch Digestion Characteristics Of Black Powder, Liu Xin, He Xinyi, Wang Hongbin, Huang Zonghai, Liu Xiaodong, Zhen Runyimg May 2019

Effect Of Tea Polyphenols On Antioxidation And Starch Digestion Characteristics Of Black Powder, Liu Xin, He Xinyi, Wang Hongbin, Huang Zonghai, Liu Xiaodong, Zhen Runyimg

Food and Machinery

The effects of different tea polyphenols on the antioxidant and digestive properties of black powder were studied. Taking the DPPH scavenging free radical rate, total reducing power, starch hydrolysis curve as the indicators, discussed the effect of tea polyphenols on the antioxidant and digestive properties of black powder. Research indicates: the addition of tea polyphenols significantly changed the index of black powder (P<0.05), enhanced DPPH free radical scavenging ability, total reducing power, total antioxidant, reduced starch hydrolysis rate. When the amount of tea polyphenols added is 0.040%, the DPPH free radical scavenging ability, total reducing power absorbance and total antioxidant ability of black powdered powder increased by 4.6%, 0.58, 8.83 U/g, respectively. The starch hydrolysis rate of black powder was reduced by 24.98%.

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The Flavor Compounds In Fermented Sausages Analyzed By Gc-Ms And Its Relationship With Fermentation Time, Li Jia, Liu Zhongyi, Fu Man, Liu Hongyan, Wu Xiaoyan, Li Ting May 2019

The Flavor Compounds In Fermented Sausages Analyzed By Gc-Ms And Its Relationship With Fermentation Time, Li Jia, Liu Zhongyi, Fu Man, Liu Hongyan, Wu Xiaoyan, Li Ting

Food and Machinery

The single factor test was used to analyze the influence of the three factors, sample mass, extraction time and extraction temperature, on the extraction effect of flavor substances from the fermented sausage. And the aroma components from sausages fermented for 6 h and 9 h at 32 ℃ were compared. The results showed that the optimized extraction conditions were the sample mass of 3.0 g when extracted for 50 min at 60 ℃. The 54 and 20 aroma components were respectively identified in sausages fermented for 6 h and 9 h. The esters were found the main volatile components in …

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Design Of Robot Nc Cooperative Electromechanical System For Remote 3d Cake Printer, An Jiaqiang, Tang Xiaohua, Wu Jing, Yang Siping, Li Tianjiao May 2019

Design Of Robot Nc Cooperative Electromechanical System For Remote 3d Cake Printer, An Jiaqiang, Tang Xiaohua, Wu Jing, Yang Siping, Li Tianjiao

Food and Machinery

Based on the analysis of the forming law and manufacturing technology of butter cake, a new butter cake processing machine body was proposed, consisting of a three-degree-of-freedom manipulator and a four-axis motion platform. In the control system, ARM microcontroller and MCX514 motion control chip were used as the core hardware of the control system. At the software level, FreeRTOS embedded operating system and GRBL numerical control system were used as the software framework of the control system. Through the calibration of the basic coordinate system of the contact three-point handshake, the manipulator and the motion table were cooperated to complete …

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Moisture Sorption Isotherm Characteristics And The Model Characterization Of Two-Components In The Rice-Made Wafer, Cheng Xueyu, Qian Yihan, Lu Lixin May 2019

Moisture Sorption Isotherm Characteristics And The Model Characterization Of Two-Components In The Rice-Made Wafer, Cheng Xueyu, Qian Yihan, Lu Lixin

Food and Machinery

The relation between the equilibrium moisture content and the water activity of crust filling at 23, 30 and 45 ℃ were studied by gravimetric method. The test data were fitted with some typical moisture absorption models by Matlab. The results showed that the moisture isotherm of crust and filling were both S type model. When the moisture activity was constant, the equilibrium moisture content first increase and then decrease with the increase of temperature, which was different from other foods. The Lewicki model and Peleg were the most suitable for fitting adsorption isotherms of crust and filling when the moisture …

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Effect Of Ice Temperature Storage On Postharvest Grape Fruit Quality, Zhang Zhe, Zhang Qiuyue, Wang Huaiwen, Guo Xu, Zhang Ping, Zhu Zhiqiang, Tian Jinjin, Wang Sasa May 2019

Effect Of Ice Temperature Storage On Postharvest Grape Fruit Quality, Zhang Zhe, Zhang Qiuyue, Wang Huaiwen, Guo Xu, Zhang Ping, Zhu Zhiqiang, Tian Jinjin, Wang Sasa

Food and Machinery

In order to clarify the effect of ice-temperature storage on the quality of grape fruit, the quality of Italian grape was studied under four different storage temperatures: super-ice temperature (-3 ℃ and -2 ℃), ice temperature (-1 ℃) and ordinary low temperature (4 ℃). The results showed that the contents of chlorophyll, titratable acid and vitamin C of Italian grapes stored at -3 ℃ were relatively high, which could maintain the nutritional components of grapes well and help grapes to maintain better color and taste during storage.

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Ozone Ice Preparation Technology And Its Research Advances In Food Preservation, Yuan Chenghao, Liu Yongle, Huang Yiqun, Wang Jianhui, Huang Shouen, Li Xianghong, Wang Faxiang, Yu Jian May 2019

Ozone Ice Preparation Technology And Its Research Advances In Food Preservation, Yuan Chenghao, Liu Yongle, Huang Yiqun, Wang Jianhui, Huang Shouen, Li Xianghong, Wang Faxiang, Yu Jian

Food and Machinery

Compared with the ozone gas and water, the ozone ice is easy to store and has a long half-life. Furthermore, ozone stored in the ice will be slowly released with the melting process of ice. Due to these precise characters, ozone ice can be used for long-term sterilization for food preservation. Starting from the progress of ozone production technology, the authors introduce the production of ozone, and the preparation of ozone water, and the application of ozone ice in food preservation.

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Research Progress On The Bioactive Compounds And Their Bioactivities Of Pepper Seed, Zhong Jin, Liu Yida, Xiao Yu May 2019

Research Progress On The Bioactive Compounds And Their Bioactivities Of Pepper Seed, Zhong Jin, Liu Yida, Xiao Yu

Food and Machinery

In this revtew, the current research progress on the main nutritional components, bioactive substances and biological activities of pepper seed worldwide were summarized, to provide reference basis and new ideas for its comprehensive utilization.

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Characterization Of Bacterial Isolates Obtained From Commercial Poultry Feed And Retail Food Using Whole Genome Sequence Analysis And Selected Biochemical Tests, Elena George Olson May 2019

Characterization Of Bacterial Isolates Obtained From Commercial Poultry Feed And Retail Food Using Whole Genome Sequence Analysis And Selected Biochemical Tests, Elena George Olson

Electronic Theses & Dissertations

The goals of this study is two-fold. The first part investigates bacterial isolates from commercial poultry feed and the second part deals with bacterial isolates recovered from retail food. In order to reduce pathogen contamination in poultry products identification of overall microbial populations in poultry production processing steps have always been considered an important monitoring tool for assessing sanitizer effectiveness and the corresponding responses of bacteria load levels on poultry carcasses. Bacterial isolates recovered from corn-based chicken feed were purified on aerobic plate count agar and eleven morphologically different colonies were selected for whole genome sequencing. In this part, the …

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Study On The Abnormality Among Accumulation And Fermentation Of Maotai-Flavor Liquor In Winter Byturning And Translocation Stacking, Yuan Zaishun, Hu Ping, Chen Qian, Wang Xiaoyu Apr 2019

Study On The Abnormality Among Accumulation And Fermentation Of Maotai-Flavor Liquor In Winter Byturning And Translocation Stacking, Yuan Zaishun, Hu Ping, Chen Qian, Wang Xiaoyu

Food and Machinery

Under the condition of low temperature in winter, the accumulation and fermentation of Maotai-flavor liquor often shows abnormal heating. In this experiment, the abnormal fermentation heap A in the first and second rounds of fermentation was treated with Turning and translocation stacking. The normal accumulation of fermented grain B in the same workshop was used as a control to study the changes of fermentation microbes and physical and chemical indicators in the fermented grains, and analyze their correlation with the quality and yield of wine. Results: the turning and translocation stacking treatment could restore the normal temperature of the abnormal …

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O/W Pickering Emulsions Stabilized By Caco3 And Particle Size Effect, Liu Xingnian, Wang Ling, Li Bin, Li Jing, Wei Xianling Apr 2019

O/W Pickering Emulsions Stabilized By Caco3 And Particle Size Effect, Liu Xingnian, Wang Ling, Li Bin, Li Jing, Wei Xianling

Food and Machinery

CaCO3 was used as stabilizer to prepare O/W Pickering emulsions. CaCO3 of different particle size were obtained by ball milling method, and the effects were investigated from the particle size, particle concentration and ratio of water to oil on type, stability, micro-morphology and rheology property of the emulsions. The results indicated that Ball-milled CaCO3 can stabilize Pickering emulsions, and the emulsion was stable after long-term storage. Particle size of CaCO3 had effect on the stability of emulsions and drop size of the emulsion increased with expansion of the particle size. When particle concentration was increased, the …

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Effect Of Ultrasound On Physicochemical And Emulsifying Properties Of Pork Myofibrillar Protein, Diao Xiaoqin, Guan Haining, Qiao Xiuli, Liu Dongqi, Liu Wang Apr 2019

Effect Of Ultrasound On Physicochemical And Emulsifying Properties Of Pork Myofibrillar Protein, Diao Xiaoqin, Guan Haining, Qiao Xiuli, Liu Dongqi, Liu Wang

Food and Machinery

The physicochemical and emulsifying properties of pork myobrillar protein (MP) solution treated by ultrasound power: 0, 80, 140, 180 and 200 W were examined. Compared with MP without ultrasonic treatment, with the increase of ultrasonic power, d4, 3 of MP decreased, while solubility, absolute value of the zeta potential, emulsifying activity and emulsion stability were significantly increased. Meanwhile 180 W was the optimum ultrasound power to obtain the highest emulsifying activity index (EAI) and emulsion stability index (ESI). The increase of emulsion stability was related to increased zeta potential and reduced average particle size. Optical microscopy observation proved that …

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Study On The Pasting, Rheological And Gelatinization Properties Of Sweet Potato/Corn Starch Blend, Zhang Dandan, Liu Xiaokang, Ma Liping, Zhang Xiaoyu Apr 2019

Study On The Pasting, Rheological And Gelatinization Properties Of Sweet Potato/Corn Starch Blend, Zhang Dandan, Liu Xiaokang, Ma Liping, Zhang Xiaoyu

Food and Machinery

This research studied the characteristics of paste, rheology and gelatinization of sweet potato/maize starch mixtures in different proportions(0∶100; 25∶75; 50∶50; 75∶25; 100∶0). The pasting results showed that the pasting temperature of corn starch (77.7 ℃) was higher than that of sweet potato starch (73.2 ℃), and the peak viscosity of sweet potato starch (513 BU) was greater than that of corn starch (281 BU); The breakdown and setback were in between two kinds of starch. The dynamic frequency scanning tests showed that the elastic modulus of corn starch was about four times as that of sweet potato starch, and the …

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Effect Of Supplementing Rutin On Quality And Antioxidant Capacity Of Low-Fat Yoghurt, Hou Caiyun, Guo Xiulan, Peng Jiaxuan, Lu Yurong Apr 2019

Effect Of Supplementing Rutin On Quality And Antioxidant Capacity Of Low-Fat Yoghurt, Hou Caiyun, Guo Xiulan, Peng Jiaxuan, Lu Yurong

Food and Machinery

Based on skimmed milk, the effects were investigated on supplementing different concentrations of rutin (0.015%, 0.020%, 0.025% and 0.030%) in fermentation time, acidity, water holding capacity, sensory quality, antioxidant capacity and microbe numbers of low fat yogurt. The results showed that the addition of 0.015%～0.025% rutin increased the water holding capacity and the state sensory score of yoghurt (P＜0.05) compared with the control. With the rutin amount increasing, the rutin contents and antioxidant capacity were gradually increased in yoghurt, and they were significantly enhanced when the amount was more than 0.015%. The numbers of fermented bacteria were reduced as the …

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Identification Of Glucosinolate In Different Varieties Of Broccoli Leaves Baesd On Hplc-Q-Tof-Ms Technology, Peng Pei, Tianyan, Deng Fangming, Qing Zhixing Apr 2019

Identification Of Glucosinolate In Different Varieties Of Broccoli Leaves Baesd On Hplc-Q-Tof-Ms Technology, Peng Pei, Tianyan, Deng Fangming, Qing Zhixing

Food and Machinery

A method for identification of glucosinolate in three kinds of cruciferous vegetable leaves was developed by using HPLC-Q-TOF-MS. Firstly, the mass spectrometry fragmentation pathways of two standard glucosinolates was studied. The bond of glucose, sulfated thiohydroximate and R-group was easily fractured and the rearrangement reaction was observed for the forming the fragment ions. Then, the structure of 8 glucosinolates including 3-(methylsulfinyl) propyl (1), 4-(methylsulfinyl) butyl (2), 3-butenyl (3), 4-hydroxybenzyl (4), 1-hydroxyindol-3-ylmethyl (5), Indol-3-ylmethyl (6), 1-methoxyindol-3-ylmethyl (7), 6-(methylsulfonyl) hexyl glucosinolate (8) were identified based on the fragmentation pathways of two standard glucosinolates, There were 4 kinds of glucosinolate (1, 2, 4, …

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Pma-Qpcr For Detecting Live Bacteria Of Shaanxi Kiwifruit Cancer Dominant Pathogen, Xiao Yan, Liu Yunhong, Gao Guitian, Cao Fan, Ma Yanping, Zhao Wuqi, Lei Yushan Apr 2019

Pma-Qpcr For Detecting Live Bacteria Of Shaanxi Kiwifruit Cancer Dominant Pathogen, Xiao Yan, Liu Yunhong, Gao Guitian, Cao Fan, Ma Yanping, Zhao Wuqi, Lei Yushan

Food and Machinery

Combining Propidium Monoazide Bromide (PMA) with real-time quantitative (qPCR) to detect the number of the live bacteria of kiwifruit cancer dominant pathogen in Shaanxi province. The optimal condition for PMA-qPCR to distinguish between live and dead ulcer bacteria was determined by optimizing the optimum concentration of PMA, incubation time and light exposure time. The results showed that all Psa were killed when treated by boiling water bath at 98.3 ℃ for 13 min. When the concentration of dead Psa was 1×107 CFU/mL, the suitable concentration of covalent crosslinking between PMA and dead Psa was 105 μg/mL, the best incubation …

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Establishment And Comparison Of Htlcs And Hplc For Detecting The Luteolin, Apigenin And Acacetin In Chuju Chrysanthemum, Zhou Guoliang, Cai Yuru, Li Sasa, Jian Qian, Feng Shunli, Qing Meisong, Yu Hao Apr 2019

Establishment And Comparison Of Htlcs And Hplc For Detecting The Luteolin, Apigenin And Acacetin In Chuju Chrysanthemum, Zhou Guoliang, Cai Yuru, Li Sasa, Jian Qian, Feng Shunli, Qing Meisong, Yu Hao

Food and Machinery

Taking the luteolin, apigenin and carnelin in the chrysanthemum as the determination index, the high-performance thin-layer scanning method (HTLCS) and high-performance liquid chromatography (HPLC) were used to determine the linear relationship between each method. The linear relationship and range of each method were investigated. The results showed that the established HTLSC and HPLC methods met the requirements, and the linear relationship was good, RE<3%. However, there was no significant difference between the two methods (P>0.05). The method of establishing HTLCS and HPLC method was reasonable. The determination of three components of luteolin, apigenin and acacetin could be carried out by using HTLCS instead of HPLC.

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Detection Of The Ph Value Of Cigarette Smoke In Simulated Oral Environment, Li Huaiqi, Qiu Jianhua, Li Guozheng, Li Qian, Huang Pei, Chcn Xiao, Yang Chen, Wang Yong, Liu Jinxiao, Wang Ning, Ma Yan, Luo Zhen Apr 2019

Detection Of The Ph Value Of Cigarette Smoke In Simulated Oral Environment, Li Huaiqi, Qiu Jianhua, Li Guozheng, Li Qian, Huang Pei, Chcn Xiao, Yang Chen, Wang Yong, Liu Jinxiao, Wang Ning, Ma Yan, Luo Zhen

Food and Machinery

To evaluate the pH value of mainstream cigarette smoke (MCS) in the simulated oral environment, with Cambridge filter to collect mainstream cigarette smoke particulate, oral solution by simulating shock to extract filter, pH composite electrode to determinate pH value of extraction solution, and set up a method to measure the pH of MCS. Correlation analysis was made between the pH and the contents of routine chemical components in MCS, between pH and the sensory evaluation of MCS. The results showed that: ① the pH value of MCS was highly correlated with the total particulate matter, tar, nicotine and H2O content …

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The Value And Enlightenment Of Japanese Food Safety Basic Law, Wu Lijun Apr 2019

The Value And Enlightenment Of Japanese Food Safety Basic Law, Wu Lijun

Food and Machinery

The Japanese Food Safety Basic Law establishes a traceability quality assurance system for the whole process of food safety in terms of legislative content, and constructs a consistent food safety regulatory organization system and food safety standards. And the implementation of a severe punishment system for food safety-related illegal acts fully reflects the effectiveness and flexibility of food safety supervision, which is based on the effective protection of national health and pays attention to the effectiveness and flexibility of food safety supervision. And the legislative value of ensuring the matching of food safety responsibility with harmfulness and so on. In …

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Dimension Of Resolving Administrative Punishment Disputes In The New 《Food Safety Law》, An Yonghua Apr 2019

Dimension Of Resolving Administrative Punishment Disputes In The New 《Food Safety Law》, An Yonghua

Food and Machinery

The provisions of the new Food Safety Law on administrative penalty have changed from individual-oriented to legal person-oriented, the intensity of punishment has increased and the number of punished objects for the same illegal act has increased, which is the institutional motivation for many administrative penalty disputes that did not exist before. In the practice of administrative penalties for food safety, the increasing possibility of abusing discretion by administrative supervision departments, the lack of operational rules and standards for administrative penalties, and the lack of scientific and unified hearing procedures are the practical mechanisms that may lead to administrative penalty …

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Research On Cooperative Mechanism Of Food Safety Supervision In China, Ren Fuying Apr 2019

Research On Cooperative Mechanism Of Food Safety Supervision In China, Ren Fuying

Food and Machinery

In recent years, China's food safety problems are frequent, and the social impact is bad. Lack of cooperative spirit, unbalanced risk distribution and widespread soft budget constraints among various regulatory bodies lead to fragmentation in the fields of responsibility concept, regulatory bodies, resource allocation, system reform and so on. The holistic governance theory provides beneficial enlightenment for solving the above problems.

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Numerical Simulation Of Meshing Co-Rotating Twin Screw Extrusion Process Under Non-Isothermal Conditions, Zhao Yulian, Li Xin, An Qi, Huang Zhigang Apr 2019

Numerical Simulation Of Meshing Co-Rotating Twin Screw Extrusion Process Under Non-Isothermal Conditions, Zhao Yulian, Li Xin, An Qi, Huang Zhigang

Food and Machinery

The SolidWorks 3D modeling software was used to construct the meshing co-rotating twin-screw physical model. By changing the rotational speed of the PLA processed by the screw extruder, the non-isothermal flow analysis was used to carry out the corresponding numerical simulation in the polyflow software. Compare the effect of speed on the processing of PLA. The numerical results show that under non-isothermal conditions, the temperature increases linearly in the direction from the inlet to the outlet, that is, in the extrusion direction. On the Z-axis section, the temperature gradually increases outward in the radial direction. By comparing the flow field …

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Reserch On Simulation Of Flow Field In Main Press Section Of Single Screw Press Based On Fluent, Gu Jin, Huang Zhigang, Mi Guoqiang, Hu Shuzhen Apr 2019

Reserch On Simulation Of Flow Field In Main Press Section Of Single Screw Press Based On Fluent, Gu Jin, Huang Zhigang, Mi Guoqiang, Hu Shuzhen

Food and Machinery

In order to study the flow field distribution and variation law of the interaction between oil and screw in the chamber of a single screw press, a physical model of the screw press and the fluid field was established. In Fluent software, k-e model and SIMPLEC solver are used to solve the finite element simulation. The distribution of pressure field and velocity field of oil in the main pressing section is obtained. Through fluid-structure coupling analysis, the stress and deformation of the screw under oil extrusion are obtained, and the location where the screw is prone to large deformation and …

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Influence Of Different Pressure On Heat Transfer Of Nozzle With Different Sizes, Gu Hanwen, Xie Jing, Wang Jinfeng Apr 2019

Influence Of Different Pressure On Heat Transfer Of Nozzle With Different Sizes, Gu Hanwen, Xie Jing, Wang Jinfeng

Food and Machinery

Food industry is demanding higher and higher quality of frozen food, and the quickfreezer can well meet this requirement. In this study, the internal flow field of quick freezer with slit nozzle type was taken as the research object.Three different sizes of nozzle structures based on inlet pressure of 190 Pa, 170 Pa and 160 Pa, numerical simulation and field test of computational fluid dynamics (CFD) were used to compare the differences of internal flow field and heat transfer characteristics of three nozzle structures under different pressure conditions. The results showed that the outlet wind velocity, Nusselt number and uniformity …

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Study On The Performance Of Constant Temperature Drying Mode Of Multifunctional Heat Pump Drying Device, Mu Huan, Tang Lan, Sun Yanhong Apr 2019

Study On The Performance Of Constant Temperature Drying Mode Of Multifunctional Heat Pump Drying Device, Mu Huan, Tang Lan, Sun Yanhong

Food and Machinery

In order to promote the application of heat pump drying technology, a multifunctional heat pump drying device with heating was designed. The conventional drying, constant temperature drying, and various operating modes were refrigerated, and the corresponding experimental bench was set up to test the performance of the constant temperature drying mode. The air supply temperature of the heat pump drying device and the bypass rate of the drying medium were adjusted by the control system, and the drying experiment was carried out under different operating conditions to test the effects on the wet cotton cloth. The results showed that the …

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Design Of The On-Line Continuous Cutting Equipment Foryoung Coconut, Zhang Cong Apr 2019

Design Of The On-Line Continuous Cutting Equipment Foryoung Coconut, Zhang Cong

Food and Machinery

The young coconut cutting technology was studied and the new automatic processing equipment was designed. The equipment could transport young coconuts with fixed spacing. In the process of operation, realized the synchronous cutting of the cylindrical surface and the conical top of the fruit and the cutting and separating of the ends. Finally the product was formed. The design scheme, key structural and technical principle of this device was also detailed. In the experiment, the young coconut with transverse diameter of φ150~160 mm was used as the processing object, and the products with cylindrical diameter of 130 mm and height …

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Optimum Design And Analysis Of Yuba Cutting Tool, Du Changqiang, Xu Liangyuan Apr 2019

Optimum Design And Analysis Of Yuba Cutting Tool, Du Changqiang, Xu Liangyuan

Food and Machinery

The Solidworks software is used to analyze the statics and modal of the circular cutter and the straight blade knife. In the same test condition, the mass and volume wear tests of circular and straight-edged cutting tools were carried out, and the data of stress, strain, displacement and wear about the two kinds of shape cutting tools in the operation were obtained. Through comprehensive analysis, it is found that the straight blade flat cutter has less wear and better stability, and is more suitable for continuous mechanized cutting. The straight blade flat cutter is preferably selected as the main cutting …

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Germicidal Effects Of Ultraviolet On Condensed Milk Barrel And Its Dynamic, Zhang Weiwei, Sun Yanhui, Wei Haiyang, Jia Xiaoli, Liu Shulan, Gu Haiyang Apr 2019

Germicidal Effects Of Ultraviolet On Condensed Milk Barrel And Its Dynamic, Zhang Weiwei, Sun Yanhui, Wei Haiyang, Jia Xiaoli, Liu Shulan, Gu Haiyang

Food and Machinery

An innovation UV irradiation device was used to detect the germicidal efficacy of UV irradiation on microorganisms inside the condensed milk barrel. In terms of germicidal rates, experiments were conducted to investigate the disinfecting feasibility and the effectiveness of ultraviolet under 60 experimental conditions, which were formed by 4×5×3 factorial combinations of radiant intensity, radiant time and radiant distance. The results indicated the germicidal rate was positively correlated with the radiant intensity, radiant time and radiant distance. Meanwhile, it was up to 99.9% for 90 second by UV irradiation in the same light with the radiant intensity above 90 μW/cm …

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Analysis Of Packaging Design Elements Based On Eye Tracking Technology And Quantitation Theory, Zhang Yue, Hou Yadan, Li Hui Apr 2019

Analysis Of Packaging Design Elements Based On Eye Tracking Technology And Quantitation Theory, Zhang Yue, Hou Yadan, Li Hui

Food and Machinery

In order to design packaging that meets the consumer's perceptual needs, we use eye tracking technology and quantitation theory type I to study the key design factors that influence consumer emotions through eye movement indicators. The evaluation of kansei image of consumers is obtained through semantic difference method. The application of quantitation theory type I was used to establishes the relationship betweenkansei image and design elements and constructs mathematical models to auxiliary packaging design. The case study of tea packaging design shows that the method was accurate and feasible.

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Effects Of Antioxidants On Properties And Lipid Oxidation Of Partially Frozen Storageloach, Lu Xiaochuan, Wang Xiaojun, Shang Yongbiao Apr 2019

Effects Of Antioxidants On Properties And Lipid Oxidation Of Partially Frozen Storageloach, Lu Xiaochuan, Wang Xiaojun, Shang Yongbiao

Food and Machinery

The effects of different treatments including clove extract，phystic acid，rapeseed，BHT and VE on properties and lipid oxidation of partially frozen storage（-2.5 ℃）loach were studied. The results showed that, with the prolongation of storage time, the sensory comprehensive score of different treatment groups decreased gradually; the pH value first descendedand rose; juice loss showed an increasing trend; the shear force value declined significantly (P<0.05); TVB-N values increased, and TVB-N values of all treatment groups were less than the maximum 20 mg/100 g at 24 d, in the acceptable range; the values of thiobarbituric acid and peroxide of the loach increased significantly (P<0.05); the saturated fatty acid (SFA) and monounsaturated fatty acid (MUFA) contents showed an increasing trend, and the relative content of polyunsaturated fatty acid (PUFA) decreased. The trend of all the above treatment groups was better than the control group. With the comprehensive analyses, the results showed that the shelf life of the control group was 8~12 days, and the antioxidant group could be 20~ 24 days, under the partially frozen condition. It was also found that the phytic acid, BHT and VE showed stronger antioxidant capacity in the treated groups, with more effective inhibition of the oxidation of unsaturated fatty acids and better maintaining of the food quality and processing performance.

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