Study On Bacteriostatic Activities Of Alkaloid Extract From The Inedible Parts Of The Eggplant,
2018
Fuyang Vocational Technical College, Fuyang, Anhui 236031, China
Study On Bacteriostatic Activities Of Alkaloid Extract From The Inedible Parts Of The Eggplant, Liu Yanfang, Zhang Dexin, Ding Yinyin
Food and Machinery
The alkaloid extracts of the inedible parts from the eggplant in food were investigated by the acteriostatic experiment and stability experimentS. The common ability of bacteria inhibiting nine kinds of common spoilage microorganisms, and the influences of the heat treatment, pH value, ultraviolet irradiation, the concentration of sucrose and NaCl concentration on it were also studied. The results showed that the extract had good antibacterial effect on yeast, bacteria and mould, and a significant bacteriostatic effect was better than that of 0.5% potassium sorbate; the thermal stability of the extract was good under the temprature of 121 ℃, while the …
A High Sensitivity Non-Enzymatic Electrochemical Glucose Sensor Based On In-Sn@Nio Composite,
2018
Department of Electronics and Communication Engineering, College of Engineering, Yanbian University, Yanji, Jilin 133002, China
A High Sensitivity Non-Enzymatic Electrochemical Glucose Sensor Based On In-Sn@Nio Composite, Li Jiadan, Xu Hongmei, Zhao Xu
Food and Machinery
To further improve the performance of non-enzymatic electrochemical glucose sensor, a one-step in-situ oxidation method was used to prepare nickel oxide material directly grown on nickel foam. Moreover, the indium and tin ions were doped into the nickel oxide material during the growth process, and an In-Sn@NiO composite could be obtained. XPS measurement indicated that the indium and tin ions were successfully doped into nickel oxide material. Through the SEM images, the surface of the doped nickel oxide electrode showed a structure of nanorods instead of nanosheets. Compared with undoped material, the structures could benefit the transport of surface particles. …
The Structure Design Of Supercritical Fluid Continuous Extractor With Piston Bin Chain,
2018
Department of Mechanical Technology, Zhejiang Institute of Mechanical & Electrical Engineering, Hangzhou, Zhejiang 310053, China
The Structure Design Of Supercritical Fluid Continuous Extractor With Piston Bin Chain, Zhu Yongren
Food and Machinery
In order to improve the intermittent operation efficiency of supercritical fluid extraction, continuous extractor of piston bin chain was designed which moved Inlet and discharge operations outside of solvent extraction process to realize the continuous extraction. With the study on different combination of the single, double O-ring and v-shaped dust block ring, the curve of different for dynamic seal pressure, leakage and wear trip were summarized. The effectiveness of the seal and wear trip was confirmed by using the simulation analysis of the O-ring contact reliability. Moreover, the extractor of different components in succession was also designed for fractional extracts …
Numerical Simulation And Optimization On Solid-Liquid Separation Performance Of Hydrocyclone,
2018
Key Laboratory in Sichuan Colleges on Industry Process Equipments and Control Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China
Numerical Simulation And Optimization On Solid-Liquid Separation Performance Of Hydrocyclone, Wang Yong, Zeng Tao, Xu Yinxiang, Liu Shaobei, Zhang Changlian, He Yu
Food and Machinery
Numerical simulation of the corn starch granule dynamics were performed by software of computational fluid mechanics to characterize the separation performance and separation process of hydrocyclone. The effects of parameters such as inlet velocity, split ratio, and feed concentration on separation efficiency of hydrocyclone were compared and analyzed, and the volume fraction distribution of different size starch granules in hydrocyclone was investigated. The response surface methodology (RSM) analysis of Box-Behnken experimental design to optimize parameters. The influence of inlet velocity, split ratio, and feed concentration on hydrocyclone separation efficiency were measured, and quadratic regression equations were constructed to examine the …
Kinematic Analysis And Simulation Of Noncircular Gear-Carden Circle Planetary Mechanism,
2018
Institute of Strength and Vibration of Mechanical Structures, Yangtze University, Jingzhou, Hubei 434023, China
Kinematic Analysis And Simulation Of Noncircular Gear-Carden Circle Planetary Mechanism, Luo Jingbo, Li Meiqiu, Feng Xiaogang, Hua Jian
Food and Machinery
The Carden circle planetary mechanism has simple structure, high reliability and easy realization of reciprocating linear motion. According to the geometric characteristics of the Carden circle planetary mechanism, the necessary conditions for the continuous motion of the structure are derived. The displacement, velocity and acceleration function of the sine wave produced by the Carden circle planetary mechanism were obtained by motion analysis. In order to meet the requirements of Carden circle planetary mechanism of the engineering application, the size of the components under certain conditions, through a combination of noncircular gear transmission characteristics, driving Carden circle planetary mechanism using uniform …
Design Of The Terminal Actuator Of Kiwi Fruit Picking Manipulator,
2018
Sichuan Agricultural University Electromechanical College, Ya’an, Sichuan 625000, China
Design Of The Terminal Actuator Of Kiwi Fruit Picking Manipulator, Wang Yilei, Chen Lin, Yi Liuzhou, Wei Xin, Tang Jian
Food and Machinery
Designed a terminal actuator for picking the fruit of early kiwifruit, and analyzed the performance and technical indexes of the terminal actuator of kiwifruit picking manipulator in motion, grasping and picking. The mechanical picking terminal actuator using rotary plus pull together, can realize the thoroughness of kiwifruit picking. For the packaging a bag the outside of the kiwi fruit in picking, the fruit wear is reduced in the process of picking under the minimum pressure to ensure that the fruit is not crushed.
Design Of Banana Picking Machine Structure With Guide Rail,
2018
School of Mechanics and Electrics Engineering, Hainan University, Haikou, Hainan 570228, China
Design Of Banana Picking Machine Structure With Guide Rail, Zhu Dongyun, Qu Junyuan, Xu Lueqiang, Zhang Baozhen, Ji Xiang
Food and Machinery
To improve the picking efficiency, reduce labor, the cost of picking bananas, and the disability accident, etc., a kind of guide roller banana picking machine was designed. The key components of mobile, clamping and cutting devices were verified met the requirement of banana picking process. mechanization of banana fruit string picking was realized. The picking efficiency could be increased by 90% by using the mobile banana picking machine, compared with the traditional manual method.
The Application Of Remanufacturing Design In Food Machinery,
2018
College of Engineering and Mechanical Engineering, Changan University, Xian, Shaanxi 710061, China
The Application Of Remanufacturing Design In Food Machinery, Zhang Dan, Yu Fucai, Liao Pan, Zhou Chaobin, Cai Zongyan
Food and Machinery
This paper analyzes many key factors influencing the design of remanufacturing of food machinery. Based on the definition and characteristics of remanufacturing design, the remanufacturing design of some existing structures is improved by field investigation, so that the structure is more reasonable and the remanufacturing design principle of the moon cake automatic brush oil hole machine for innovative design. The face-to-face remanufacturing design maximi-zes the wealth of resources contained in waste food machinery and promotes a strategic approach to sustainable development.
Design On System For Fresh Products E-Commerce Packaging By Rfid,
2018
Department of Telecommunication Engineering, Zhejiang Post and Telecommunication College, Shaoxing, Zhejiang 312000, China
Design On System For Fresh Products E-Commerce Packaging By Rfid, Ma Yecheng
Food and Machinery
To solve the problem of low efficiecy in the traditional artificial packaging for fresh products, a fresh products packaging system was designed based on RFID. Combining the RFID technology, the users’ interactive software and the database technology, the proposed system utilized the rapid writing and reading performance of RFID to improve packaging operation and sorting operation by writing and reading fresh products’ message, respectively. Therefore the system can enhance the intelligentize of the E-commerce enterprise. The test system verified by the instance can finish packaging and sorting operation for fifty boxes. Therefore the system can identify accurately RFID tag, and …
Establishment And Comparison Of Shelf Life Model About Quality Index And Colony Count Of Fresh-Cut Lettuce,
2018
Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering﹝Shanghai Ocean University﹞, Sh
Establishment And Comparison Of Shelf Life Model About Quality Index And Colony Count Of Fresh-Cut Lettuce, Qiao Yongxiang, Xie Jing, Lei Hao
Food and Machinery
The influence of different temperature (0, 5, 10, 15 and 20 ℃) on its quality and total number of colonies of fresh-cut lettuce during storage was studied, and the chlorophyll content, vitamin C content and colony total were found decreased with the increase of temperature and storage time. Based on the experimental data, first order kinetic model of chlorophyll and vitamin C and Gompertz model of the total number of colonies were established to predict the shelf life. The results were as follows. Compared with the shelf life model SLD of the total number of colonies based on Arrhenius …
The Effect Of Chitosan/Nano-Silver Coating On The Egg Preservation,
2018
College of Food Science, Southwest University, Chongqing 400715, China
The Effect Of Chitosan/Nano-Silver Coating On The Egg Preservation, Wang Jing, Xu Dan, Yu Jialun
Food and Machinery
Nano-silver particles were prepared using the extract of citrus peels were added to chitosan solutions with weight ratios of 0.5%, 1.0%, and 2.0%, separately, as the composite coating solutions. Eggs were coated two times by the neat chitosan solution and composite coating solutions, separately, and was designated as CS, CS/Ag 0.5, CS/Ag 1.0, and CS/Ag 2.0, accordingly. They were stored with the two control groups (untreated eggs (CK1) and eggs washed by water (CK2) at 25 ℃ with the relative humidity of 70%. The appearance of internal content, weight loss, air cell height, specific gravity, albumen pH, Haugh unit (HU), …
The Effect Of D-Phenyllactic Acid Combined With Coating Treatment On Anti-Microbial And Preservation Of Grapes During Storage,
2018
School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
The Effect Of D-Phenyllactic Acid Combined With Coating Treatment On Anti-Microbial And Preservation Of Grapes During Storage, Wan Yulian, Chen Liushun, Xie Dan, Zhu Yibo, Zhu Dongxing, Qi Bin
Food and Machinery
The research was done in order to evaluate the effect of D-3-Phenyllactic acid (D-PLA) on preservation of grape and provide reference for SO2-free storage of table grapes. ‘Kyoho’ grapes were treated through post-harvest dipping before room temperature storage so that inhibitory potentials of microbial population on fruit surface were evaluated avoiding the fruit decay . The results showed that compared with the two control groups of purified water soakage and coating treatment, the D-PLA combined with coating treatment could effectively inhibit the growth of microorganism on fruit surfaces. It was found that the bacterial population were reduced by …
The Killing Effect Of Three Agents On Pseudomonas Syringae Pv. Actinidiae Of Pollen And Their Effect On Fruit Yield Of Kiwifruit,
2018
College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, Shaanxi 710119, China
The Killing Effect Of Three Agents On Pseudomonas Syringae Pv. Actinidiae Of Pollen And Their Effect On Fruit Yield Of Kiwifruit, Cao Fan, Gao Guitian, Lei Yushan, Du Yinglin, Zhu Dan, Xu Yafen, Zhang Xiaoping, Li Chaozheng, Zhang Xin
Food and Machinery
The kiwifruit pollen polluted by Psa（Pseudomonas syringae pv.actinidiae）in Shaanxi Zhouzhi was treated with solutions of ClO2, Benziothiazolinone and Kocide, and the effects of them on the sterilization rate of Psa, pollen viability and the impacts on fruit yield, single fruit weight and seed number were investigated. The results showed that after treating the kiwifruit pollen with ClO2, Benziothiazolinone and Kocide, the bactericidal rates of Psa were 99.7%, 99.6% and 99.4%, and the pollen viability was 62.2%, 50.1% and 51.2%, respectively. Compared with the control group, the pollen viability decreased by 0.5% (ClO2), 19.1% (Benziothiazolinone), …
Research On Online Detection For Jujube Surface Defects Based On Blob Analysis,
2018
School of Mechanical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
Research On Online Detection For Jujube Surface Defects Based On Blob Analysis, Hai Chao, Zhao Fengxia, Sun Shuo
Food and Machinery
In this paper, an online detection platform for jujube surface defects based on machine vision is designed to realize the automatic real-time measurement of full-surface information of jujubes. According to the characteristics of jujubes and their surface defects, the blob analysis algorithm in the color space was used to separate the jujubes from the background and identification of the surface defects of jujube model was proposed. The color space model and the segmentation threshold of different defect characteristics were given,the broken fruit, mold fruit, pulp head fruit, insect fruit and other typical jujubes surface defects identification was realized speedily and …
Active Evaluation Of Dna Protection To Oxidative Damage And Its Possible Mechanisms Of Vitexin In Vitro,
2018
School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China
Active Evaluation Of Dna Protection To Oxidative Damage And Its Possible Mechanisms Of Vitexin In Vitro, Chen Ban, Li Dahuan, Li Xican
Food and Machinery
In order to study the DNA protection and possible mechanisms of vitexin, it was measured by using three spectrophotometric assays, including DNA protection, Fe2+-complexing, and Cu2+ reducing. In addition, its Fe2+-complexing reaction was also analyzed using UV-Vis spectra. The results showed that the IC50 values of vitexin were (919.6±23.6), (9.3±1.2) and (421.7±29.2) μmol/L, respectively, for DNA protection assay, Fe2+-complexing assay, and Cu2+ reducing assay. When mixed with Fe2+, vitexin gave a UV-Vis peak at 554 nm \[molar absorptivity ε=2 680.74 L/(mol·cm)\]. In conclusion, vitexin can effectively protect DNA from …
Study On The Ultrasonic-Assisted Extraction Process Of Fructus Schizandrae Oil And The Hepatic Protection Effect,
2018
College of Pharmacy, Xi’an Medical University, Xi’an, Shaanxi 710021, China
Study On The Ultrasonic-Assisted Extraction Process Of Fructus Schizandrae Oil And The Hepatic Protection Effect, Wang Xiaoning, Hao Jing, Liu Zichen, Yan Mengru, Zhang Cunlao
Food and Machinery
Using the extraction yield of Fructus Schisandrae seed oil as an index, the ultrasonic extraction process of it was optimized by single factor and orthogonal design. HPLC was used to analyze the content of schizandrin A, B, and schisandrin in the seeds. The mice liver injuried model was established by administration with CCl4 and the contents of GSH, MDA and SOD in mice liver tissue were determined. HE staining was used to observe the pathological changes of liver. The results showed that the optimum process was as follows: the extraction solvent was n-hexane with the ratio of solid to …
Effects Of Soybean Peptide And Taurine Compound Powder On Anti Fatigue Ability In Mice,
2018
Wuhan Twinklife Health Industry Co., Ltd., Research Institute, Wuhan, Hubei 430090, China
Effects Of Soybean Peptide And Taurine Compound Powder On Anti Fatigue Ability In Mice, Yang Xiao, Wang Tian, Liu Chang, Huang Ying
Food and Machinery
It showed that soybean peptides and taurine had good anti-fatigue effects. In order to explore the function of soybean peptide and taurine compound powder (SPT) on relieving fatigue and the interaction between them, the SPT Compound powder was used to test the SPF KM mice, and groups high, medium and low doses and a distilled water blank control fed for continuous 30 days were set. The experiments of loaded swimming, blood lactic acid, serum urea, liver glycogen determinations were then detected. The results showed that with the increase of the dosage, the loaded swimming time increased significantly. However, the area …
Research Of Composition And Antioxidant Activity Of Different Solvent Extracts From Termitomyces Albuminosus,
2018
Agricultural College, Yanbian University, Yanji, Jilin 133002, China
Research Of Composition And Antioxidant Activity Of Different Solvent Extracts From Termitomyces Albuminosus, Li Minghong, Ligua Nhao, Piaosho Uhuan, Cui Fushun
Food and Machinery
This paper studied composition and antioxidant activity of different solvent extracts from Termitomyces albuminosus. The total flavonoids, total phenols, ergosterol and adenosine of eight kinds of different polar solvents extracts were determined by spectrophotometer and liquid chromatography. In addition, measured the antioxidant activity by scavenging DPPH·, ABTS+·, hydroxyl radical, total antioxidant and total reduction ability. Extracts in distilled water had the highest rate of the yield; contained the highest content of total phenolics and adenosine in different sovlents; the highest content of ergosterol was in methanol extract. Distilled water and methanol had better scavenging free radicals in different polar solvents. …
Effect Of Hydrogen Peroxide On Decolorization Of Polysaccharide From Red Dragon Fruit Peel And Its Antibacterial Activity,
2018
College of Food and Biological Engineering, Bengbu University, Bengbu, Anhui 233030, China
Effect Of Hydrogen Peroxide On Decolorization Of Polysaccharide From Red Dragon Fruit Peel And Its Antibacterial Activity, Fang Xiaohui, Dan Demiao, Qian Shiquan, Lu Zhaoxin
Food and Machinery
The hydrogen peroxide decolorization process of polysaccharide extracted from red dragon fruit peel was investigated in this study. The effects of the hydrogen peroxide concentration, the decolorization temperature and the decolorization time on the decolorization rate were studied. The optimum conditions were obtained by response surface methodology. Moreover, the antibacterial activity of the polysaccharide was also investigated. The results showed that the optimum hydrogen peroxide decolorization conditions were the hydrogen peroxide concentration of 4.3%, decolorized at 62 ℃ for 109 min. Under these conditions, the decoloriza-tion rate and the retention rate of the red dragon fruit peel polysaccharide were 88.17% …
Study On Bioactive Components And Antioxidant, Antibacterial Activities Of Atractylodes Macrocephala Koidz Grown In Qimen,
2018
(College of Life and Environment Science, Huangshan University, Huangshan, Anhui 245041, China
Study On Bioactive Components And Antioxidant, Antibacterial Activities Of Atractylodes Macrocephala Koidz Grown In Qimen, Wu Yongxiang, Jiang Haitao, Cui Peng, Fang Jianxin, Wang Weidong, Hu Changyu
Food and Machinery
The total contents of phenolics and flavonoids and the relativeantioxidant and antibacterial activities in different polarity fractions from Atractylodes macrocephala Koidz grown in Qimen (Qi Baizhu) were evaluated. The correlation between total phenolic, flavonoid contents and the antioxidant activities were analyzed. The main constituents of methanol crude extract were identified by gas chromatography-mass spectrometry (GC-MS). The results showed that there were significant differences in the contents of total phenolics and flavonoids, antioxidant and antibacterial activities among different polarity fractions including n-hexane, dichloromethane, ethyl acetate, n-butanol and water fractions (P<0.05). The ethyl acetate fraction had the highest contents of total phenolics \[(139.45±0.19) mg TA/g\] and total flavonoids \[(21.28±2.28) mg QE/g\]. Moreover, it exhibited the strongest reducing power \[(38.95±1.66) mg Vc/g\], ABTS radical scavenging ability \[(302.42±7.51) mg Vc/g\], and DPPH radical scavenging ability \[(51.61±2.59) mg Vc/g\]. The contents of total phenolics and flavonoids demonstrated significant correlations with antioxidant activity (P<0.05). The methanol extract, n-hexane and dichloromethane fractions exerted potent inhibitory effects on E. coli, S. aureus, B. subtilis and P. aeruginos. Hexane fraction presented the best antibacterial effect, and its minimum inhibitory concentration against four common bacterial strains was 1 mg/mL. The methanol crude extract was analyzed by GC-MS, and eighteen compounds were identified, including phenols, alcohols, alkenes and esters, and the major constituents were found to be 3,3'-diamino-4,4'-dihydroxybiphenyl (33.47%), β-eudesmol (28.33%), β-guaiene (5.91%), and 3,3,5,6,7-pentame -thyl-2H-inden-1-one (4.70%).
