Optimization On Preparation Technology Of Xylan Polysaccharides Iron Complex And Its Antioxidant Activities,
2020
College of Chemistry and Bioengineering, Guilin University of Science and Technology, Guilin, Guangxi 541006 , China
Optimization On Preparation Technology Of Xylan Polysaccharides Iron Complex And Its Antioxidant Activities, Li Xia, Sun He-Fei, Tao Yang-Fei, Chen Qing, Zhou Yu-Heng, Shan Yang, Guan Yuan
Food and Machinery
Taking xylan (Xyl) and ferric chloride as substrates, the effects of the mass ratio of Xyl to sodium citrate, reaction temperature and pH on yield rate was investigated by single factor test. Preparation technology of xylan polysaccharides iron complex (XPC) was optimized by response surface methodology. The preliminary structure characterization of Xyl and XPC was performed by infrared spectroscopy and X-ray diffraction. The DPPH free radical, superoxide anion, hydroxyl radical and reducing power of XPC was also studied. The results showed that the optimum preparation conditions were as follows: the mass ratio of Xyl to sodium citrate of 3:1, reaction …
Fermentation Characteristics Of Local Stater Jiaozi And Its Influence On The Quality Of Steamed Bread,
2020
Food College of Henan University of Science and Technology, Xinxiang, Henan 453003 , China
Fermentation Characteristics Of Local Stater Jiaozi And Its Influence On The Quality Of Steamed Bread, Wang Wen-Fei, Lu Yuan, Wang Ya-Xin, Yu Ji-Bin, Sun Jun-Liang, Shi Yu-Zhong
Food and Machinery
Taking the local starter Jiaozi of shangqiu (1#), nanyang (2#) and xinxiang (3#) in Henan province as the research objects, the fermentation power, gluten index, amylase activity, pH value and titratable acidity of Jiaozi were determined, and the specific volume, whiteness and texture of the steamed bread were compared and analyzed. The results showed that 3# Jiaozi from Xinxiang was superior to the other two Jiaozi in fermentation capacity, amylase activity and acid production, and the steamed bread made by 3# Jiaozi had larger specific volume and better texture characteristics than the other two Jiaozi steamed bread. Therefore, 3# Jiaozi …
Research Progress On Energy Saving Optimization Of Cold Storage Plate Refrigerator,
2020
Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and EnergySaving Evaluation, Shanghai 201306 , China ；College of Food Science and Technology, Shanghai OceanUniversity, Shanghai 201306 , China
Research Progress On Energy Saving Optimization Of Cold Storage Plate Refrigerator, Xu Qi-Jun, Xie Jing
Food and Machinery
This paper discusses the influence on the energy saving effect of cold storage plate refrigerator from the aspects of phase change cold storage material, cold plate placement and thermal insulation material, and prospects the future research direction of cold storage plate refrigerator.
Changes Of Gel Properties During Heating Of Duck Albumen Induced By Alkali,
2020
College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642 , China ；Livestock and Poultry Product Processing and Safety Research Center, Guangzhou, Guangdong 510642 , China
Changes Of Gel Properties During Heating Of Duck Albumen Induced By Alkali, Ling Zi-Ting, Jiang Ai-Min, Zhou Quan, Fan Hong, Ai Min-Min, Cao Yuan-Yuan
Food and Machinery
In this study, the effects of heating temperature on the gelation properties of duck albumen with 0.50% NaOH were studied by measuring the texture, water-holding capacity, pH, color, SDS-PAGE and net-work protein of duck albumen in the range of 65~95 ℃. The results showed that the firmness of the gel increased from 68.88 g to the maximum 652.35 g (70 ℃) after heating, with an increase of 8.47 times. Moreover, the elasticity increased from 45.20% to 77.5% as heated to 95 ℃. The water-holding capacity of the alkali-induced duck albumen gel increased to a maximum of 89.02% at 75 ℃, …
Quality Evaluation Of Guizhou Kidney Beans Based On Principal Component Analysis,
2020
School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou 550025 , China
Quality Evaluation Of Guizhou Kidney Beans Based On Principal Component Analysis, Wang He-Zhu, Zhu Yong, Zhu Yi, He You-Xun, Qin Li-Kang, Liang Ya-Li
Food and Machinery
Seven types of Guizhou kidney beans were used to evaluate their quality based on principal component analysis of main nutritional components. The results showed that the content of protein in kidney beans ranged from 19.11% to 23.69%. The total contents of the dietary fiber were found ranging from 23.09% to 27.60%, and those in British red bean were the highest. Seven kinds of kidney beans were rich in Ca, Mg, P, and K, ranging from 0.09% to 0.20%, 0.19% to 0.29%, 0.45% to 0.61%, and 1.48% to 1.69%, respectively; The contents of glutamic acid, aspartic acid, and leucine in these …
Verification Of Anti-Adhesive Performance Of Modified Polypropylene Films And Its Packaging Application,
2020
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306 , China
Verification Of Anti-Adhesive Performance Of Modified Polypropylene Films And Its Packaging Application, Sui Yue, Yang Fu-Xin, Cheng Long, Xu Tao
Food and Machinery
Firstly, measured the contact angle of yogurt on films, verified the anti-adhesive effect of films with two different methods and then tested the hygienic performance of the modified films. The results showed that: 7% silicone oil + 93% polypropylene mixed modified film and 8% polytetrafluoroethylene + 92% polypropylene modified film had the best performance. The contact angles were: 85.97° and 98.84° respectively. After the verification of two anti-adhesive methods, the yogurt residues of the 7% silicone oil-modified film were 28.67% and 23.45% respectively, and the yogurt residues of the 8% polytetrafluoroethylene-modified film were 26.61% and 23.11% respectively; After safety verification, …
Effect Of 60Co-Γ Ray And Electron Beam Irradiation On Microbial Property And Qualities Of Black Broken Tea,
2020
Hunan Institute of Nuclear Agricultural Science and Space Mutation Breeding, Changsha,Hunan 410125 , China ；Hunan Engineering Technology Research Center of Agricultural BiologicalIrradiation,Changsha, Hunan 410125 , China ；Hunan Biological Irradiation T
Effect Of 60Co-Γ Ray And Electron Beam Irradiation On Microbial Property And Qualities Of Black Broken Tea, Zhang Qi-Ling, Peng Ling, Xu Yuan-Fang, Zhou Yi-Ji, Guo Feng, Zhang Yong, Deng Chao, Li Wen-Ge
Food and Machinery
In order to investigate the effect of 60Co-gamma ray and electron beam irradiation on the microbial property and qualities of black broken tea, different doses of 60Co-gamma ray irradiation and electron beam irradiation were used to irradiate black broken tea, and the effects of 60Co-gamma ray irradiation and electron beam irradiation on microorganism, quality composition and sensory quality of black broken tea were studied. The results showed that both 60Co-gamma ray irradiation and electron beam irradiation could effectively inhibit the microbial pollution in black broken tea. It was found that the 60Co-gamma ray irradiation D10 of …
Optimization On Ultrasonic-Assisted Extraction Of Polyphenols From Cyclobalanopsis Glauca Shells By Response Surface Methodology And Study On Its Antioxidant Activity In Vitro,
2020
Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ；College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
Optimization On Ultrasonic-Assisted Extraction Of Polyphenols From Cyclobalanopsis Glauca Shells By Response Surface Methodology And Study On Its Antioxidant Activity In Vitro, Ru Yue-Rong, Zhang Zhi-Yang, Yang Jin-Mei, He Bin, Kan Huan, Liu Yun, Wang Zhen-Xing, Zhang Xue-Chun
Food and Machinery
The ultrasound-assisted extraction was applied to the extraction of polyphenols from the Cyclobalanopsis glauca fruit shells. The effects of the concentration of ethanol, solid-liquid ratio, ultrasonic time, and number of extraction cycles on the yield of phenolic yield were studied, and the extraction process was optimized by response surface methodology (RSM). Then the in vitro antioxidant activities of Cyclobalanopsis glauca shell fruit extract (CGSE), including ferric ion reducing antioxidant power (FRAP) and oxygen radical absorbance capacity (ORAC), were evaluated. Results: The optimal extraction process were as followed: volume fraction of ethyl alcohol 50%, extracting time 25 min, solid-liquid ratio 1:40, …
Clinical Trial Of Sugar-Control Ling Cakes On Blood Glucose Fluctuation In Diabetic Patients,
2020
College of Bioscience and Bioengineering, Hebei University of Economics and Business, Shijiazhuang, Hebei 050071 , China
Clinical Trial Of Sugar-Control Ling Cakes On Blood Glucose Fluctuation In Diabetic Patients, Sheng Qing-Hai, Yan Bin, Jia Yan-Ju, Liu Jing, Xu Li, Tian Ting-Ting, Xie Ying, Han Xu, Li Zeng-Ning
Food and Machinery
This test evaluated the auxiliary hypoglycemic effect of cakes processed from bitter almond flour, Luo Han Guo powder, resistant starch, polydextrose and other materials on patients with type 2 diabetes. The test used a self-matching design, during the 12-week test period, and subjects were interspersed with a control breakfast and a test breakfast. The subjects were tested for fasting blood glucose, 2 hours postprandial blood glucose, glycated hemoglobin, and safety indicators. The results showed that test cakes can significantly reduce the 2 h postprandial blood glucose (P≤0.01) and glycated hemoglobin (P≤0.01) in diabetic patients. There was no significant difference in …
Study On Functional Properties Of Dietary Fiber From Pinus Koraiensis Nut Coated-Film,
2020
Yanbian University, Yanji, Jilin 133002 , China
Study On Functional Properties Of Dietary Fiber From Pinus Koraiensis Nut Coated-Film, Wang Chao, Xu Hong-Yan, Yang Xi-Ming, Zhong Wen-Jie
Food and Machinery
Preparation of soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) using Pinus Koraiensis nut coated-film as raw material, and xylanase in insoluble dietary fiber modification, prepared modified soluble fiber (MSDF) and modified insoluble dietary fiber (MIDF), and determined the dialysis delay index of glucose, cholesterol, sodium cholate adsorption capacity and glucose. Results: the glucose adsorption capacity of MSDF was significantly higher than that of SDF, and the glucose adsorption capacity of MIDF was significantly higher than that of IDF. In the simulated gastric environment, the cholesterol adsorption capacity of modified dietary fiber was improved, and MSDF was significantly higher …
Rapid Detection Of Alternaria Monomethyl Ether In Wheat By High Performance Liquid Chromatography,
2020
School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China
Rapid Detection Of Alternaria Monomethyl Ether In Wheat By High Performance Liquid Chromatography, Xu Qun-Ying, Zhai Yu-Heng
Food and Machinery
In this study, a high-performance liquid chromatography (HPLC) method for the efficient detection of alternariolmethyl ether (AME) in wheat was developed. The sample was extracted with acetonitrile/ methanol/ water (volume ratio 45/10/45), shaken at 30 ℃ for 30 minutes, and purified by Bond Elut Plexa solid-phase extraction cartridge. Then the sample was detected with a Variable wavelength detector. In this method, the limit of detection (LOD) of AME was 2.52 μg/kg, and the limit of quantification (LOQ) was 8.40 μg/kg, and the linear range was 0.25~2.00 μg/mL. The concentration of AME recovery was 80.1%~88.3%, the intra-day precision and inter-day precision …
Determination Of Semi-Volatile Organic Compounds In Drinking Water By Gas Chromatography-Triple Quad Ms With Large-Volume Injection,
2020
Taizhou Food Inspection and Testing Center, Taizhou, Zhejiang 318000 , China
Determination Of Semi-Volatile Organic Compounds In Drinking Water By Gas Chromatography-Triple Quad Ms With Large-Volume Injection, Chen Hong-Bo, Xia Hui-Li, Fang Ru-Yi
Food and Machinery
A method for the determination of 29 semi-volatile organic compounds in drinking water by large volume injection-gas chromatography-mass spectrometry was established. The samples were extracted by liquid-liquid extraction with methyl tert-butylether solvent, and the samples were injected in large volume by solvent emptying mode programmed heating up. Multi-Reaction ion Monitoring (MRM) and internal standard method were used to quantify the samples. Results: The calibration curves were linear in the concentration of 0.2~10.0 μg/L, and the correlation coefficient was greater than 0.994. The detection limits of the method was in the range of 0.003~0.110 μg/L, the recovery rates was in the …
Determination Of 7 Kinds Of Polychlorinated Biphenyls In Water By Magnetic Solid Phase Extraction/Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry,
2020
Technology Center of Changsha Customs, Changsha, Hunan 410004 , China ；Hunan Academy of Inspection and Quarantine, Changsha, Hunan 410004 , China
Determination Of 7 Kinds Of Polychlorinated Biphenyls In Water By Magnetic Solid Phase Extraction/Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry, Fu Shan-Liang, Zhang Fan, Lu Jing, Chen Lian, Cheng Jing, Zhu Shao-Hua
Food and Machinery
Magnetic solid phase extraction(MSPE) based on Fe3O4-grafted graphene oxide (Fe3O4@GO) was combined with thermal desorption-gas chromatography-tandem mass spectrom-etry(TD-GC-MS/MS) to develop an organic solvent free quantitative analysis method for the determination of 7 kinds of indicative polychlorinated biphenyls(PCBs) in water. The factors affecting the extraction efficiency, induding amount of Fe3O4@GO, extraction time and pH value of water sample, were investigated. Under the control of the optimized conditions, an excellent linearity was observed in the range of 2~100 ng/L for the 7 kinds of PCBs, with the correlation coefficients(r)＞0.98. The detection limits (S/N=3) and …
Determination Of Volatile Aroma Components In Cigarettes And Optimization Of Flavoring Process Of Tobacco,
2020
Hongyun Honghe Tobacco 〔Group〕 Co., Ltd., Kunming, Yunnan 650231 , China
Determination Of Volatile Aroma Components In Cigarettes And Optimization Of Flavoring Process Of Tobacco, Li Da, Li Xian-Ke, Zhang Tao, Xu Ren-Jie, Yuan Peng, Li Chao
Food and Machinery
A method for the determination of 11 volatile substances in cigarette cut tobacco by headspace-stirring rod solid phase microextraction-thermal desorption-gas chromatography-mass spectrometry (HS-SBSE-TD-GC-MS) was established. The parameters were optimized in the tobacco flavoring process, and the sample pretreatment method and thermal desorption operation conditions were optimized. ① Under the control of the optimized experimental conditions, the correlation coefficient R2 was higher than 0.998, and the detection limit and the lower limit of quantitation were 0.052~0.524 μg/g and 0.172~1.684 μg/g, respectively; ② The spike recovery was at 85.2%~97.6% and the relative standard deviation of the determination results was at 2.7%~6.0%; ③ …
Legal Mechanism Of Chinese Food Trade Dispute Settlement Under “Belt And Road”,
2020
Southwest University of Political Science and Law, Chongqing 401120 , China
Legal Mechanism Of Chinese Food Trade Dispute Settlement Under “Belt And Road”, Wang Zheng
Food and Machinery
Chinese food trade is expanding rapidly as the “Belt and Road” moves in an orderly fashion among countries along the route, and the food trade disputes among them are becoming more prominent. Due to the late establishment of the legal system of food safety in China, the food safety standards are not unified enough and un-satisfied with the international standards. In this regard, we should adjust the domestic food safety standards in response to international requirements on the basis of further improving the domestic legal system for food safety and security. Furthermore, this can also construct the legal mechanism of …
Low Energy Consumption Drying Device For Food Based On Integration Of Membrane Distillation And Liquid Desiccant Dehumidification,
2020
College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222 , China
Low Energy Consumption Drying Device For Food Based On Integration Of Membrane Distillation And Liquid Desiccant Dehumidification, Gui Da-Li, Chen Dong, Fan Jia-Qi, Xie Ji-Hong
Food and Machinery
A low energy consumption drying device based on integration of membrane distillation and liquid desiccant dehumidification was proposed. The basic idea was to transfer the moisture in the material to the liquid desiccant by the dehumidifying-drying unit, and then the moisture absorbed by the liquid desiccant was separated and removed by liquid desiccant regeneration unit. Based on a brief introduction to the structure and principle of the device, an estimation formula for SMER (Specific moisture extraction rate) of the device was given and the SMER of the device can reach 6.36 kg/(kW·h) under typical operating conditions. An experimental device for …
Experimental Study On Descaling Technology Of Typical Freshwater Fish Based On Water Jet,
2020
Liaoning Key Laboratory of Seafood Processing Technology and Equipment, Dalian Polytechnic University,Dalian, Liaoning 116034 , China
Experimental Study On Descaling Technology Of Typical Freshwater Fish Based On Water Jet, Li Ren-Jie, Meng Xiang-Yi, Zhong Sen-Miao, Lu Jin-Shi, Zhang Xu, Tao Xue-Heng
Food and Machinery
Taking crucian as the test object, and the main factors are the jet pressure, jet incident angle, jet target distance, and feed speed of the material plate as the main factors, investigated the trend and extent of the influence of these factors on the descaling rate and fish damage of crucian based on the self-developed water jet descaling experimental bench. The results showed that the optimal conditions for crucian descaling were as followed: jet pressure 10 MPa, incidence angle 60°, target distance 11 cm and feed rate 5 cm/s. Under the conditions, the descaling rate was 89.1%, and the sensory …
Design And Multi-Body Dynamics Analysis Of Stirring Mechanism Of Cooking Robot,
2020
Guangdong Macro Gas Appliance Co., Ltd., Foshan, Guangdong 528300 , China
Design And Multi-Body Dynamics Analysis Of Stirring Mechanism Of Cooking Robot, Huang Liang-Hai, Wang Xiao-Long, Li Ya-Ming
Food and Machinery
The author firstly designs three kinds of stirring mechanism of a certain type of cooking robot, which are called uniaxial stirring mechanism, forward and backward stirring mechanism,planetary stirring mechanism, and then carries out multi-body dynamic simulation analysis for each kind of design. The spherical particle flow is used to simulate the dish material, and the simulation animation video and the motion trajectory of food particles are obtained. The results show that the planetary stirring mechanism can stir the material most thoroughly.
Study On The Influence Of Meshing Line Of Rotors On Its Performance Of Twin Screw Compressor,
2020
Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214122 , China ；School of Mechanical Engineering, JiangnanUniversity, Wuxi, Jiangsu 214122 , China
Study On The Influence Of Meshing Line Of Rotors On Its Performance Of Twin Screw Compressor, Yu Jia-Chuan, He Xue-Ming, Long Ji
Food and Machinery
According to the distribution of the key points on the meshing line of the rotor profile of the twin screw compressor, the meshing line of the screw rotor profile was divided into five segments. The influence of the change of each segment on the performance parameters of the rotor profile was then discussed in detail. The resulted showed that the area utilization coefficient changes were associated with the area enclosed by the meshing line, which meant the sum of the area between the teeth of male rotor and female rotor changed to be larger. Only three segments of the sealing …
Application Of Motion Control And Adaptive Fuzzy Control In Palletizing Robot,
2020
Department of Mechanical and Electrical Engineering, Zhumadian Vocational and Technical College,Zhumadian, Henan 463000 , China
Application Of Motion Control And Adaptive Fuzzy Control In Palletizing Robot, Liu Guang, Wen Hua, Liang Ying
Food and Machinery
The palletizing robot and palletizing system were investigated, and the method of the relative work model was established. The description of both positive and negative kinematics was also established, and the dynamic characteristics were analyzed by Lagrange dynamics. Moreover, an adaptive fuzzy PID control method was proposed to study the dynamic characteristics of the robot. Thereafter, the motion control and adaptive fuzzy control algorithms were simulated, and this controller showed better performance.
