Preparation And Modification Of Magnetic Nanobeads With Promised Biological Applications,
2016
College of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Preparation And Modification Of Magnetic Nanobeads With Promised Biological Applications, Hu Qiongcan, Ning Jingheng, Liu Zhenguo, Zhang Weifeng, Liu Long, Wang Jianhui
Food and Machinery
Magnetic nanobeads are more and more widely used in the fields of biology and medicine. However, there are still some shortcomings about the magnetic nanobeads such as nonuniform size, poor dispersity, weak magnetism and low functionalization degree after modification. This study was focused on how to acquire magnetic nanobeads by overcoming these drawbacks. Firstly, a highly magnetic nucleus with homogenous sizes, Fe3O4, was prepared. Then, it was successively modified by tetraethoxysilane and 3-aminopropyltriethoxysilane, giving functionalized magnetic nanobeads Fe3O4@SiO2 or Fe3O4@SiO2—NH2, respectively. The influence …
Determination Of Streptomycin Residue By In Tomatoes By Synchronous Fluorescence Of Cdte Quantum Dots,
2016
College of Science, Liaoning Technical University, Fuxin 123000, China
Determination Of Streptomycin Residue By In Tomatoes By Synchronous Fluorescence Of Cdte Quantum Dots, Mao Yongqiang, Hu Meina, Li Na, Zhang Dan, Mao Jing
Food and Machinery
Thioglycolic acid capped CdTe quantum dots (QDs) was prepared via hydrothermal synthesis method. Based on the synchronous fluorescence enhancement of CdTe QDs in the presence of streptomycin, a synchronous fluorescence method for the determination of streptomycin residue was established. Influence factors including pH value of buffer solution, concentration of CdTe QDs and reaction time were investigated. The samples were extracted with methanol by ultrasonic processing, and were added into the solution which was composed of 1.0 mL of CdTe quantum dots (3.5×10-5 mol/L) and 1.0 mL of Tris—HCl buffer solution (pH=6.0). After standing for 10 min, the synchronous fluorescence …
On-Line Detection Of Sugar Content Of Nanshui Pears By Vis/Nir Spectroscopy And Variable Selection Methods,
2016
Jiangsu Kaiyi Intelligent Technology Co., Ltd., Wuxi, Jiangsu 214174, China
On-Line Detection Of Sugar Content Of Nanshui Pears By Vis/Nir Spectroscopy And Variable Selection Methods, Sun Tong, Jiang Shuiquan
Food and Machinery
Sugar content (SC) is one of the important internal qualities of Nanshui pears. In this research, Visible/near infrared (Vis/NIR) spectroscopy was used to detect SC of Nanshui pears on-line. Transmission speed of Nanshui pears was 0.3 m/s, and USB4000 spectrometer was used to acquire the spectra of Nanshui pear samples in the wavelength range of 470～1 150 nm. Then three variable selection methods were used to select sensitive wavelength variables, and partial least squares (PLS) was used to develop calibration models of SC for Nanshui pears, also performance of calibration models was compared. The results indicate that Vis/NIR spectroscopy combined …
Determination Of Sugars And Polyols In Domestic And Imported Cigarette Brands With High Performance Liquid Chromatography,
2016
Research and Development Centre, China Tobacco Jiangxi Industrial Co., LTD., Nanchang, Jiangxi 330096, China
Determination Of Sugars And Polyols In Domestic And Imported Cigarette Brands With High Performance Liquid Chromatography, Guo Lei, Su Jiakun, Luo Juanmin, Xu Da, Shao Dengyin, Song Shiqing, Fan Linghui, Lu Huijun
Food and Machinery
High performance liquid hromatography (HPLC) was developed to detect fructose, glucose, maltose, sucrose, glycerol, propylene glycol and sorbitol in tobacco. Samples were separated in Hi-Plex Ca cation ion exchange column with ultra pure water as mobile phase, refractive index detector as detector, and injection volume 15 μL, velocity of 0.4 mL/min, column temperature 80 ℃. The results show that the recoveries of sugars and polyols ranged from 97% to 108% with RSD of 0.89%～1.39% in the limit of detection of 1.5～2.0 mg/L. Meanwhile. Thirteen domestic and imported cigarette brands were analyzed by using this method. Results indicate that the propylene …
Optimizationon Determination Conditions For Aromatic Components Of Sichuan Xiaoqu Chinese Spirit,
2016
Bioengineering Institute, Sichuan University of Science＆Engineering, Zigong, Sichuan 643000, China
Optimizationon Determination Conditions For Aromatic Components Of Sichuan Xiaoqu Chinese Spirit, Wu Hechuan, Zhou Jian, Zhang Suyi, Ma Yingying, Yang Jiangang
Food and Machinery
Headspace solid-phase microextraction (HS—SPME) and gas chromatography coupled with mass spectrometry (GC—MS) were used for the qualitative determination of aromatic components in Sichuan Xiaoqu Chinese spirit samples. The effect factors of HS—SPME were optimized, such as alcohol content in sample，sample volume in headspace glass vial, concentrations of sodium chloride, equilibrium temperature and time, desorption time. The best extraction performance was achieved under the following conditions: 20% vol alcohol content in sample，45% sample volume in headspace glass vial with addition of 0.1 g/mL sodium chloride, 30min equilibrium time at 45 ℃, 30 min headspace adsorption time. In this condition, there were …
Effects Of Structural Parameters On Volume Flux And Correction Factor Of Jet Of Nozzles Used Lubricating Gears,
2016
Central South University, School of Mechanical and Electrical Engineering, Changsha, Hunan 410083, China; Central South University, State Key Laboratory for High Performance Complex Manufacturing, Changsha, Hunan 410083, China
Effects Of Structural Parameters On Volume Flux And Correction Factor Of Jet Of Nozzles Used Lubricating Gears, Zhou Fang, Liu Shaojun, Zhang Ruiqiang, Lin Ling
Food and Machinery
In order to study the effects of structural parameters on volume flux and correction factor of jet of nozzles used lubricating gears, single phase flow model of the jet flow field of three dimensional nozzles is simulated by employing the Large Eddy Simulation based on the FLUENT. The rationality of the simulation results of the single phase flow model of jet flow field of three dimensional nozzles were demonstrated by the volume flux of jet oil measured by the method of weighting jet oil. The results indicate that the volume flux of jet is influenced by the orifice diameter, the …
Design And Analysis Of A New Automatic Vending Machine,
2016
Mechanical and Electrical Engineering College, North University of China, Taiyuan, Shanxi 030051, China
Design And Analysis Of A New Automatic Vending Machine, Liu Haigang, Wang Gang, Gao Jianbiao
Food and Machinery
A new automatic vending machine was designed. The principle of the selecting and pushing of vending machine was introduced, and the three dimensional model was established. The software ADAMS was used to carry out dynamic simulation and optimization analysis. The vending machine can transport the goods to outlet rapidly and steadily. When the pushing velocity was kept at the speed of 150 mm/s left and right, the goods have low wiggle and high stability, and it can provide the experimental basics for the practical design. In the case of equal occupancy area, comparing to the height of the market vending …
Visual Design Of Three Dimensional Potato Vertical Peeling Machine Based On Solid Works,
2016
Henan Institute of Animal Husbandry Economy Packaging and Printing Engineering College, Zhengzhou, Henan 450046, China
Visual Design Of Three Dimensional Potato Vertical Peeling Machine Based On Solid Works, Miao Hongtao, Xia Jingjing
Food and Machinery
With the times development, people pays more attention to the food processing industry. Analyzed the wording principles and efficiency of the formal potato peeling machine by Solid Works a three-dimensional simulation, and based on the formal pelling process, an new vertical peeling machine was designed which had a continuous potato peeling recycle system, including elaborated preparing，washing, peeling processing and unloading. It could greatly reduces the manual links, and improved the efficiency of potato peeling. The visual simulation of potato peeling was finished by Solid Works software.
A Comparative Study On Quality Of Green Radish Treated By Pe Film And Micro-Perforated Film At Cold Storage,
2016
The College of Food Science and Biotechnology of Tianjin Agriculture University, Tianjin 300384, China; Tianjin Engineering Research Center of Agricultural Products Processing, Tianjin 300384, China
A Comparative Study On Quality Of Green Radish Treated By Pe Film And Micro-Perforated Film At Cold Storage, Wu Haiqing, Zhen Runying, He Xinyi, Sun Guibao
Food and Machinery
In order to investigate the effect of the packing materials on the storage quality of green radish, the main physical physics and chemistry indicators and sensory indexes of Weiqing radish were compared at (2.0±0.5) ℃, which treated by the polyethylene film (PE) and micro-perforated film. The results showed that, the contents of vitamin C, acidity, soluble solids content and weight loss rate of the treated by micro-perforated film were higher than those of the PE film group. The amylase activity, contents of reducing sugar and nitrite in the treatment of PE film were higher than those in micro-perforated group. The …
Preparation And Properties Of Chitosan/Paraben Composite Films,
2016
Key Laboratory of Product Packaging and Logistics of Packaging Engineering, Jinan University, Zhuhai, Guangdong 519070, China
Preparation And Properties Of Chitosan/Paraben Composite Films, Liu Jing, Hu Changying, Zeng Shaofu
Food and Machinery
The influence of different concentration of paraben on properties of chitosan/paraben composite films was studied. The structure characterizations of films were characterized by FT-IR and SEM. Transmittance, color, mechanical properties, water vapor permeability, swelling degree and antibacterial properties were also tested. Results: with the increasing of concentration of paraben, the transmittance of composite film decreased and the color became yellow. The highest tensile strength was 37.0 MPa, and the elongation at the break was 55% when the concentration of paraben were 5%(WT) and 25%(WT), respectively. The water vapor permeability was 7.5×10-14 g/(m2·s·Pa) when concentration of paraben was …
Study On Dynamics Of Atp-Related Compounds And Freshness Of Grass Carp Muscles Of During Storage,
2016
Changsha University of Science and Technology, Changsha, Hunan 410114, China; Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, Changsha, Hunan 410114, China
Study On Dynamics Of Atp-Related Compounds And Freshness Of Grass Carp Muscles Of During Storage, Ouyang Fangfang, Wang Jianhui, Chen Qi, Wang Faxiang, Li Xianghong, Y Ujian, Liu Yongle
Food and Machinery
In order to clarify the relationship between muscle quality and ATP-related compounds of grass carp muscle chilled storaged at 4 ℃, ATP-related compounds of grass carp muscle was investigated using high -performance liquid chromatography (HPLC), and K value was calculated. The results showed that the variation tendency of ATP-related compounds of dorsal and abdominal muscle in grass carp was similar during chilled storage. IMP contents were increased at first and then decreased. Hx and HxR contents increased continuously. K values of dorsal and abdominal muscle of fresh grass carp were 7.72% and 7.78%. The fish began to decay when K …
Preparation Of Angiotensin Converting Enzyme(Ace) Inhibitory Peptides Derived From Enzymatic Hydrolysate Of Crucian By-Products,
2016
Jiangxi Food Inspection and Testing Research Institute, Nanchang, Jiangxi 330001, China
Preparation Of Angiotensin Converting Enzyme(Ace) Inhibitory Peptides Derived From Enzymatic Hydrolysate Of Crucian By-Products, Zhou Xiaoqing, Luo Lijuan, Huang Feilong, Huang Ganhui
Food and Machinery
In this study, byproducts of crucian were used as the raw materials to prepare angiotensin converting enzyme (ACE) inhibitory productsthrough enzyme hydrolysis. On the basis of the inhibitory rate of hydrolysate, pepsin was identified as the optimal enzyme from alkaline protease, flavor protease, neutral protease, trypsin, papain, and pepsin. On the basis of single factor experiment, the optimal hydrolysate conditions of crucian were obtained through Box-Benhnken central combination design and RSM. Simulating the prediction model of quadratic equation, the optimal enzymatic hydrolysate conditions were liquid-material ratio of 1∶4.4(m∶V), hydrolysis concentration of [E]/[S]=521 U/g, hydrolysis time of 5.3 h. Under the …
Effects Of Pulverization Treatment On Aqueous Enzymatic Extraction Of Camellia Seed Oil,
2016
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Effects Of Pulverization Treatment On Aqueous Enzymatic Extraction Of Camellia Seed Oil, Xie Bin, Yang Ruijin, Gu Jiao
Food and Machinery
The effect of pulverization treatment on the yield of Camellia seed oil and the stability of emulsion formed during the aqueous enzymatic extraction was investigated. The result showed that when the particle size of Camellia seed reached to 37.92 μm by hammer mill, the yield of total oil and free oil reached 96.85% and 91.34% respectively. However, further pulverization of the Camellia seed had no significant change on the particle size, but the amount and stability of emulsion increased, resulting in a serious loss of the oil yield and an increase in the difficulty for the following demulsification process. There …
Preparation Of Lyophilized Powder Of Anthocyanins Liposomefrom Black Rice Bran,
2016
College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, China; Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu 210023, China; Key Laboratory of Grains and Oil
Preparation Of Lyophilized Powder Of Anthocyanins Liposomefrom Black Rice Bran, Zhou Xiyun, Wu Qiyue, Feng Suolan, Liu Qin
Food and Machinery
The powder of black rice bran anthocyanins liposome (proliposome) was prepared by lyophilized methods. The effects of pre-frozen temperature and different protectants of mycose, sucrose, mannitol on the qualities of lyophilized anthocyanin liposome were investigated by inspecting the leakage rate, particle size and Zeta potential of reconstituted liposome. The results showed that the pre-frozen temperature had no significant effect on the qualities of lyophilized liposome. The leakage of reconstituted liposome were decreased by using protectant mycose or sucrose alone, and reached lowest value of 16.64% and 12.50% respectively by control the mass ratio between soybean lecithin and protectant at 3∶1. …
Effect Of Whole Wheat Flour On Quality Of Instant Fried Noodles,
2016
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Effect Of Whole Wheat Flour On Quality Of Instant Fried Noodles, Cao Xinlei, Wang Li, Qian Haifeng, Zhang Hui, Qi Xiguang
Food and Machinery
The wheat flour was partly replaced by whole wheat flour (WWF) to make the instant fried noodles, the influence of WWF on the rheological property, texture, color, oil content and rehydration time of instant fried noodles had been studied. The RVA results showed that peak viscosity, minimum viscosity and final viscosity were significantly and negatively correlated to the replacement of WWF. With increasing amount of WWF, instant fried noodles’ hardness, chewiness and resilience decreased, while adhesiveness increased. WWF darkened the surface color of the noodles, and the rehydration time was extended from 390 s to 600 s when the content …
Inspection And Construction Of Green Food Network Marketing Pattern In China,
2016
Business Studies Department of An Hui Audit College, Hefei, Anhui 230601, China
Inspection And Construction Of Green Food Network Marketing Pattern In China, Zhang Qiankun
Food and Machinery
The Internet marketing model based on the Internet is not restricted by region and the information communication is convenient and cheap. Today, internet is becoming more and more popular. Through the review of Chinese green food marketing model, many problems can be found. Although the network marketing of green food in our country has been a great development. But, the problems still exists such as the internet technology under developed, the legal system construction of imperfection, the single means of network marketing, high price, unreasonable structure etc.. Therefore, it is necessary by strengthening the legal construction of the infrastructure of …
Research Advance On Ecological Packaging Materials Of Chinese Spirits,
2016
Shaoyang University, Shaoyang, Hunan 422000, China
Research Advance On Ecological Packaging Materials Of Chinese Spirits, Yu Yougui, Cao Zhihua, Yang Beibei, Zeng Hao
Food and Machinery
The breakthrough and development of the packaging of Chinese spirits depended largely on the innovation and upgrading of packaging material. Ecological packaging materials must firstly be selected to achieve ecological packaging of Chinese spirits. The necessity, basic characteristics, classification and development trend of ecology packaging material of Chinese spirits were introduced. The realization of ecological packaging materials of Chinese spirits would help to promote the health of consumers and the protection of ecological environment. The ecological packaging material of Chinese spirits has 4 basic characteristics, including the characteristics of excellent protecting products, good processing and use, excellent visual design and …
Preparation Of Microcapsules Encapsulating Orange Essential Oil By Complex Coacervation,
2016
Longping Branch Graduate School, Central South University, Changsha, Hunan 410125, China
Preparation Of Microcapsules Encapsulating Orange Essential Oil By Complex Coacervation, Chen Linhao, Shan Yang, Li Gaoyang, Fu Fuhua
Food and Machinery
Taking gum Arabic and gelatin as wall material, orange essence as core materials, the globular multi-core orange microcapsules was prepared by adopting compound condensation. Several probolems were studied, including wall material ratio , the core wall ratio, pH, types of curing agent, adding quantity on production rate , efficiency of microcapsules microcapsule, and the influence of microcapsule loading capacity. By the response surface test, the results showed that the ratio of gelatin and Arabic gum was 1.1∶1.0 (m∶m), core wall ratio was 2.2∶1（m∶m）, pH 3.6, curing agent content was 0.16%, the microcapsules of highest loads effectively was 73.16%.
Research Progresses On Ssr Molecular Markers In Foxtail Millet,
2016
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China
Research Progresses On Ssr Molecular Markers In Foxtail Millet, Shen Yan, Wang Ying, Sun Daqing, Zhang Dongjie
Food and Machinery
Foxtail millet was one of the important positions in grain crops. With the completion of its whole genome sequencing, it had greatly promoted the development of molecular markers of foxtail millet. As the second generation, with a simple operation, good reproducibility and reliable results and other advantages, SSR markers technology had been widely adopted in crop genetic diversity, construction of genetic linkage map, analysis of quantity shape, species identification and other research. The application in genetic diversity and other research of SSR markers in foxtail millet were reviewed, and it was expected to provide information and reference for the development …
Progress On Application Research Of Fresh Ice For Aquatic Products Preservation,
2016
College of Food Science & Technology Shanghai Ocean University, Shanghai 201306, China
Progress On Application Research Of Fresh Ice For Aquatic Products Preservation, Wang Qian, Sun Xiaohong, Lan Weiqing, Zhang Wanjun, Xie Jing
Food and Machinery
Aquatic products are good resources of protein, inorganic salt and vitamin, which are tend to be deteriorated easily and affect the circulation of aquatic products. Fresh ice is one of the fresh-keeping methods with ice, such as ozone, electrolyzed water, bio-preservatives and electronic beam etc, so as to achieve the best effect of preservation. The application progress in fresh-keeping effects of aquatic products with traditional ice, ozone ice, slurry ice, electrolyzed water ice and bio-preservative ice were reviewed in this paper. The application of electronic beam and composite bio-preservative with ice were also introduced at the same time. The main …
