Effect Of Sulfate Modificate On The Structure And Antioxidant Activity Of Jujube Polysaccharide,
2022
College of Food, Shihezi University, Shihezi, Xinjiang 832000 , China
Effect Of Sulfate Modificate On The Structure And Antioxidant Activity Of Jujube Polysaccharide, Gong Xiao-Pei, Zhang Jian, Guo Xiao-Bin, Mao Xiao-Ying, Zhang Lian-Fu
Food and Machinery
Objective:This study aimed to explore the relationship between the structure and antioxidant activity of purified red date polysaccharide ZJP-1 and sulfated red date polysaccharide S-ZJP-1.Methods:Using remnant jujube as raw material, jujube polysaccharide (ZJP-1) was purified by hot water extraction, and then separated by DEAE-52 ion exchange chromatography and Sephadex-200 dextran gel column chromatography. Thereafter, red jujube polysaccharide sulfated derivative (S-ZJP-1) was obtain through chlorosulfonic acid-pyridine sulfated modification.Results:Both ZJP-1 and S-ZJP-1 are composed of three monosaccharides: glucose, arabinose, and galactose, but the ratios are different. The two polysaccharides had characteristic absorption peaks of polysaccharides, and S-ZJP-1 …
The Influence Of Closed/Open Conditions On The Flavoring Compounds Produced From Tyrosine-Based Maillard Reaction,
2022
The College of Tobacco Science,Henan Agricultural University,Zhengzhou,Henan 450002 ,China
The Influence Of Closed/Open Conditions On The Flavoring Compounds Produced From Tyrosine-Based Maillard Reaction, Yin Xiao-Qing, Li Rui, Pei Qi, Lu Zi-Qi, Zhao Ming-Qin
Food and Machinery
Objective:This article is aimed to explore the influence of closed/open conditions on the flavor compounds of Maillard reaction.Methods:The species and amounts of flavor compounds produced from Tyrosine-based Maillard reactions under closed/open conditions in different solvents and reaction temperatures were determined by GC-MS.Results:The results showed that the species and contents of flavor products are quite different under closed and open conditions. The amounts of alcohol flavor compounds were higher in closed system, while the amount of esters and ketones were higher inopensystem.Conclusion:The amounts of active oxygen and intermediates produced during the reactions likely result …
Analysis Of Kombucha Microflora And The Isolation And Identification Of Dominant Bacteria,
2022
College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457 , China
Analysis Of Kombucha Microflora And The Isolation And Identification Of Dominant Bacteria, Xu Su-Yun, Li Jia-Jia, Fang Wei, Wang Yan-Ping, Geng Wei-Tao
Food and Machinery
Objective:To understand bacterial composition and obtain isolated fermentative strains found in kombucha.Methods:The bacterial composition and dominant strains were analyzed using 16S rDNA high-throughput sequencing technology and traditional microbial culture method.Results:High-throughput sequencing showed that the bacterial community is richer and more diverse than the fungi community. Komagataeibacter,Acetobacter and Lactobacillus were the dominant bacterial strains, while Dekkera and Zygosacchaormyces were the dominant fungal strains. At the same time, 7 strains of acetic acid bacteria, 3 strains of yeast and 1 strain of lactic acid bacteria were isolated by traditional plate culture method, including 1 strain of Komagataeibacter …
Study On Composition Difference And Antioxidant Activity Of Peel And Kernel From Raw And Fried Semen Of Ziziphi Spinosae,
2022
Changchun University of Chinese Medicine, Changchun, Jilin 130117 , China
Study On Composition Difference And Antioxidant Activity Of Peel And Kernel From Raw And Fried Semen Of Ziziphi Spinosae, Xiao Feng-Qin, Liu Hui, Yang Yi-Liu, Yu Qian, Li Jia, Zhang Hong-Yin, Shao Shuai, Li Guang-Zhe, Yan Ming-Ming
Food and Machinery
Objective:This study aimed to reveal the composition differences and antioxidant activities of kernel and peel from raw and fried semen from Ziziphi spinosae.Methods:Using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical (·OH), superoxide anion radical (O-2·), 2,2'-amino-di (3-ethyl-benzothiazoline-6-sulphonic acid) ammonium salt (ABTS) free radical scavenging ability and ferric reducing antioxidant power (FRAP) to determine the antioxidant activity of peel, kernel and jujube benevolence from different semen. Moreover, the components of peel, kernel and jujube benevolence were also studied by UV spectrophotometer.Results:The results showed that the peel, kernel, and jujube benevolence of all the semen had certain antioxidant …
Determination Of Anilazine In Rape And Rapeseed By Lc-Ms/Ms,
2022
Shanghai Bino Testing Service Co., Ltd., Shanghai 201114 , China
Determination Of Anilazine In Rape And Rapeseed By Lc-Ms/Ms, Dou Yin-Hua
Food and Machinery
Objective:A detection method was developed for benazolin residual in rape and rapeseed by High performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).Methods:The rape and rapeseed were extracted with acetonitrile reagent, purified by Pesti Carb-NH2, separated by C18 column, carried out with methanol-ammonium acetate aqueous solution, detected by HPLC-MS/MS.Results:The liner relation was good in the ranger of 0.01~1.00 μg/mL, and the coefficient of determination was 0.999, the limit of detection(LOD) was 0.008 mg/kg, with the limit of quantification (LOQ) of 0.027 mg/kg. At the spiking levels of 0.03, 0.06, 0.15 mg/kg, the recovery rate of the method …
Rapid Determination Of Erythrosine In Beverages By Uplc,
2022
Beijing Dongcheng District Center for Disease Control and Prevention, Beijing 100009 , China
Rapid Determination Of Erythrosine In Beverages By Uplc, Xie Sai
Food and Machinery
Objective:In order to develop a method, an easy handling of samples and accurate and rapid detection of erythrosine by ultra-high performance liquid chromatography (UPLC) was established.Methods:The analysis was as follows: chromatographic column of ACQUITY UPLC BEH C18(100 mm×2.1 mm,1.7 μm), diode array detector with detection wavelength at 530 nm, column temperature at 40 ℃, mobile phase with acetonitrile and0.02 mol/Lammonium acetate solution (acetic acid to adjust pH 6.25), gradient elution including acetonitrile 0 min-5%, 2 min-25%, 3 min-45%,6 min-70%, 6.5 min-5% and 8 min-5%, flow rate at0.3 mL/min, and with injection volume of 5 μL. …
Influence Of Different Screw Configurations On The Flow Field Of Intermeshing Co-Rotating Twin-Screw Extruder,
2022
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048 , China ；Plastic Beijing Municipal Key Laboratory of Health and Safety Quality Evaluation Technology, Beijing 100048 , China
Influence Of Different Screw Configurations On The Flow Field Of Intermeshing Co-Rotating Twin-Screw Extruder, Zhang Xue-Chen, Zhang Li-Mei, Huang Zhi-Gang, Zhong-Yao, Li He
Food and Machinery
Objective:To explore the influence of different screw configurations of intermeshing co-rotating twin -screw extruder on the flow field and improve the material properties of PLA.Methods:The geometric model of double threaded element was established by using Solidworks software, and the numerical simulation was carried out in Polyflow. The post-processing analysis of the simulation results was carried out with the help of Fieldview software. The shear rate field, pressure field, velocity field, viscosity field and the residence time distribution RTD were compared to obtain the influence of screw groove depth on the flow field.Results:When the center distance …
Study On Performance Of Kitchen Waste Spiral Extrusion Device Based On Discrete Element Method,
2022
College of Mechanical and Information Engineering, Shandong University, Weihai, Shandong 264209 , China
Study On Performance Of Kitchen Waste Spiral Extrusion Device Based On Discrete Element Method, Feng Shuo, Wang Yan-Gang, Wang Xin-Kun, Yuan Hao, Liu Wei, Guo Peng-Ning
Food and Machinery
Objective:To study the physical and geometric factors that affect the extrusion effect between particles in the spiral extrusion dewatering device for kitchen waste, and to provide reference for selecting the parameters of the spiral extrusion and dewatering device.Methods:Based on the discrete element method, the state of the extruded particles was analyzed, and the extrusion situation of the material particles in the device was simulated by changing the filling coefficient, spiral speed and inclination angle.Results:When there was some inclination angle in the screw extrusion dehydration device with variable pitch, the filling coefficient increased and the rotation …
Design And Test Of Combined Rubber Seed Shelling Machine,
2022
College of Mechanical and Electrical Engineering, Hainan University, Haikou, Hainan 570228 , China
Design And Test Of Combined Rubber Seed Shelling Machine, Zhao Le-Ran, Wang Tao
Food and Machinery
Objective:In view of the existing rubber seed shelling machine, which have poor shelling and whole-kernel rate, is not enough to meet the needs of rubber seed shelling under different condition, a combined rubber seed shelling machine was designed. Through the combination of cutting and shearing of rubber seeds between the groove plate and the rotary blade, as well as extrusion and collision of the rotary blade roller, the shell is removed.Methods:The discrete element software EDEM was used to establish the discrete element model of rubber seed and shelling machine, and to simulate the separation process. Response surface …
Design And Implementation Of Small Color Recognition System For Beverage Bottle Caps,
2022
Huanghe Jiaotong University, Jiaozuo, Henan 454950 , China ；Henan Intelligent Manufacturing Technology and Equipment Engineering Technology Research Center, Jiaozuo, Henan 454950 , China
Design And Implementation Of Small Color Recognition System For Beverage Bottle Caps, Deng San-Xing, Sun Sai-Wei, Yang Meng-Meng, Zhang Kai, Li Shuai
Food and Machinery
Objective:This study focus on solving the problems that the current beverage bottle cap detection system has simple functions, large volume and low color recognition rate.Methods:A design scheme of small beverage bottle cap color recognition system based on ARM processor was proposed. By using the LineSim tool of the simulation software HyperLynx, a four-layer PCB board was designed and impedance matching simulation analysis was obtained after setting transmission line parameters. Through using the compilation software Jupyter Notebook to achieve threshold setting, target contour detection, target frame out and other functions.Results:Under bright and low light conditions, the …
Rock Tea Packaging Design Based On Perceptual Engineering,
2022
School of Civil Engineering and Architecture, Wuyi University, Wuyishan, Fujian 354300 , China ；School of Innovation and Design, City University of Macau, Macau 999078 , China
Rock Tea Packaging Design Based On Perceptual Engineering, Chen Jing-Wen
Food and Machinery
According to the perceptual engineering research paradigm, rock tea packaging design research framework of perceptual engineering is used as a guide to determine the typical samples and core perceptual vocabulary of rock tea packaging through various methods such as literature search, expert evaluation, KJ method, questionnaire survey, etc. The semantic difference method is used to quantify user perceptions and conduct principal component analysis to arrive at rock tea packaging presenting four core perceptual attributes: bright, environmentally friendly, exquisite and the mapping relationship between the core perceptual vocabulary and design elements was obtained through class category analysis to obtain a rock …
Isolation And Identification Of Pathogenic Fungi From Postharvest Blueberry In Sichuan Province And The Inhibition Effect On Them By Using Essential Oil,
2022
College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, Zhejiang 316000 , China ；College of Food Science, Sichuan Agricultural University, Ya’an, Sichuan 625000 , China
Isolation And Identification Of Pathogenic Fungi From Postharvest Blueberry In Sichuan Province And The Inhibition Effect On Them By Using Essential Oil, Liu Chun-Yan, Ding Jie, Deng Shang-Gui, Qin Wen, Liu Yan
Food and Machinery
Objective:This study aimed to provide strategy for controlling the fungal diseases of postharvest blueberry in Sichuan province.Methods:The pathogenic bacteria from 14 planting bases in Sichuan Province were isolate, identified, pathogenicity determination. Moreover, the effects of temperature and light on mycelia growth of the dominant and subdominant strains of blueberry after harvest were studied, and the effective natural antibacterial components against them were screened.Results:The blueberry postharvest rot diseases were caused by the following nine kinds of fungi:Aspergillus niger,Aspergillus tubingensis,Neofusicoccum parvum,Neopestalotiopsissp.,Fusarium graminearum,Alternaria alternata,Mucor fragilis,Penicilliumsp.,Cladosporium xylophilum.Aspergillus niger was the dominant species with the highest isolation frequency and the …
Explore The Inhibitory Effect Of Perilla Crude Extract On Metabolic Syndrome-Related Enzymes Based On Molecular Docking,
2022
College of Pharmacy, Xiʼ an Medical University, Xiʼan, Shaanxi 710021 , China
Explore The Inhibitory Effect Of Perilla Crude Extract On Metabolic Syndrome-Related Enzymes Based On Molecular Docking, Yu Yu-Ting, Zhang Yanl, Zhang Ying, Li Na-Na, Cheng Yan, Zheng Meng-Di, Yan Ping, Chai Xi-Yan
Food and Machinery
Objective:The research is to explore the enzyme inhibition of Perilla crude extract, and to preliminarily elucidate the pharmacological substance basis of them on hyperglycemia, hyperuric acid and hyperlipidemia.Methods:The content of flavonoids and phenolic acid in UV extract was determined and showed the active components associated with enzyme inhibition. In vitro experiments, the inhibition of Perilla extracts on different enzyme activity was determined and the inhibitory activity was evaluated by IC50. Molecular docking was used to predict the targets of Perilla crude extract on pancreatic lipase and amylase inhibition.Results:Flavone content in the crude UV extract was …
Effect Of Advanced Removal Of Huangshui Fluid On Quality And Yield Of Nongxiang Flavor Crude Baijiu Of Solid-State Fermentation,
2022
College of Food and Chemical Engineering, Shaoyang University, Shaoyang, Hunan 422000 , China ；Key Laboratory of Brewing Ecotypically New Technology and Application of Hunan Universities, Shaoyang, Hunan 422000 , China ；Xiangjiao Distillery Co., Ltd., Shaoyang, Hunan 422000 , China
Effect Of Advanced Removal Of Huangshui Fluid On Quality And Yield Of Nongxiang Flavor Crude Baijiu Of Solid-State Fermentation, Yang Zhi-Long, Deng Jia-Wei, Yu You-Gui, Chen Xue-Peng, Xiong Xiang, Wan Yong
Food and Machinery
Objective:The aim of this study was to improve the quality of Nongxiang flavor crude Baijiu.Methods:The effect of advancd removing Huangshui fluid in on the quality and yield of crude Baijiu was studied in multi-grain traditional Baijiu at different times during the cellar fermentation cycle.Results:When Huangshui fluid was removed at the 40th day of cellar fermentation of distilled alcoholic fermentative material, compared to the control group at 60th day, the yield of the crude Baijiu was higher (P＜0.05), and the high quality ratio of crude Baijiu, ethyl hexanoate content and ethyl hexanoate/ethyl lactate in …
Quality Properties Of Mixture Of The Proso Millet And Rice,
2022
College of Food Science and Engineering of Northwest A & F University, Xianyang, Shaanxi 712100 , China
Quality Properties Of Mixture Of The Proso Millet And Rice, Ren Jing, Jiang Wen-Qian, Zhao Ning, Ji Xiao-Hui, Li Meng-Qing, Du Shuang-Kui
Food and Machinery
Objective:The purpose of this study was to mix rice and proso millets and obtain high nutritional value, fantastic taste and flavor mixed rice.Methods:By adding different proportions of proso millets to rice, the nutritional value and fantastic taste of mixed rice were evaluated via the amino acid score (AAS), texture profile properties, sensory evaluations and flavor properties.Results:There were significant differences in the texture profile properties, sensory evaluations and flavor properties among cooked proso millets additions. The proportion of the cooked rice addition was significantly positively correlated to the gumminess and chewiness of rice, while it was …
Optimum Parameters And Application Of Buckwheat Noodle Composite Preformed Powder,
2022
Hotel College, Jiangsu Food & Pharmaceutical Science College, Huaian, Jiangsu 223003 , China
Optimum Parameters And Application Of Buckwheat Noodle Composite Preformed Powder, Zhao Min, Yang Bao-Wei, Hu Jian, Wang Rong-Lan
Food and Machinery
Objective:This study aimed to explore the best parameters of buckwheat noodle composite preformed powder.Methods:Single factor experiment, multi-index comprehensiveevaluation method and orthogonal experiment were used to optimize the special composite preformed powder recipe of buckwheat noodles.Results:The best parameters of buckwheat noodle composite preformed powder were 45% of buckwheat flour, 8% of modified starch, 1.2% of compound phosphate and 3% of gluten powder. In this situation, the tensile area of composite flour dough was 3 378.6 g·mm; the stabilization time was 7.23 min, the content of wet gluten was 23.71%; the sensory score was89.2; the comprehensive score …
Advance In Research On Heat Treatment Mechanism Of Infrared Radiation And Its Application In Foods,
2022
Shandong Academy of Agricultural Machinery Sciences, Jinan, Shandong 250100 , China
Advance In Research On Heat Treatment Mechanism Of Infrared Radiation And Its Application In Foods, Yu Xian-Long, Chu Bin, Xiao Hong-Wei, Zhang Wei-Peng, Zhao Feng, Zhang Zong-Chao
Food and Machinery
The development of food infrared heating theories were discussed in this review, and the advancement of infrared heating in food processing were summarized. Moreover, the principle of food processing and process optimum method in various food infrared thermal treatment technologies, including sterilizing, thawing, blanching, baking, peeling and drying processes were also discussed.
Research Progress On Composition And Processing Of Flos Lonicerae,
2022
College of Food Science and Technology, Sichuan Agricultural University, Yaʼan, Sichuan 625000 , China
Research Progress On Composition And Processing Of Flos Lonicerae, Luo Lian, Ye Meng, Lin Jing, Chen An-Jun, Mo Han-Ru, Yu Jian-Bing, Liu Xing-Yan
Food and Machinery
In this paper, the research on the active components, dry processing methods, extraction of functional components and processed products of Flos Lonicerae at home and abroad in recent years were summarized and discussed, and the development direction of Flos Lonicerae in the future was prospected.
Research Progress On The Determination Of Free-Base Nicotine In Tobacco And Tobacco Products,
2022
China National Tobacco Quality Supervision and Test Centre, Key Laboratory of Tobacco Biological Effects, Zhengzhou, Henan 450001 , China
Research Progress On The Determination Of Free-Base Nicotine In Tobacco And Tobacco Products, Zhang Hao, Han Shu-Lei, Chen Huan, Hou Hong-Wei, Hu Qing-Yuan
Food and Machinery
The research progress on determination of free-base nicotine in tobacco and tobacco products in the past 30 years was reviewed and discussed, including solvent extraction method, headspace solid-phase microextraction method,1H NMR, Henderson-Hasselbalch method and spectroscopy method, etc. Advantages and limitations of each method were summarized and discussed and the development in this field was prospected.
Preparation Of Matrix Reference Material For Acetamiprid In Cowpeas,
2022
Henan Institute of Product Quality Supervision and Inspection, Zhengzhou, Henan 450047 , China
Preparation Of Matrix Reference Material For Acetamiprid In Cowpeas, Liu Yan, Yin Ke-Ke, Li Bo, Pang Quan, Yang Ya-Qin
Food and Machinery
Objective:To establish a method for the preparation of acetamiprid matrix reference material in cowpeas.Methods:Planted fresh blank cowpea which meets the requirements of reference material development was selected as the research object to obtain dry powder after crushed, freeze-dried, added, mixed, twice freeze-dried, crushed, screened, mixed, packaged and Co60 irradiation sterilized. The dry powder sample was determined by Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) and calibrated for quantitative determination by matrix standard solution. After homogeneity and stability studies, coordinated value was determined by 9 laboratories and the uncertainty was evaluated.Results:The prepared sample of cowpea freeze-dried powder …
