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Articles 1201 - 1230 of 4720
Full-Text Articles in Food Biotechnology
Dynamic Changes Of Volatile Flavor Components And Their Precursors During Low Temperature Cooking Of Beef, Cui Wei, Meng Xiang-Ren, Gao Zi-Wu, Ma Yin-Rui
Dynamic Changes Of Volatile Flavor Components And Their Precursors During Low Temperature Cooking Of Beef, Cui Wei, Meng Xiang-Ren, Gao Zi-Wu, Ma Yin-Rui
Food and Machinery
Objective:In order to explore the dynamic changes of volatile flavor components and their precursors during low temperature cooking of beef.Methods:Beef with central temperature of 98 ℃ was used as control group. Nucleotides, free amino acids, free fatty acids, total sugars and volatile flavor components in beef with central temperature of 60, 65, 70, 75 and 80 ℃ were determined, and sensory evaluation was carried out.Results:The results showed that the content of fresh flavor nucleotides, equivalent fresh flavor concentration and taste activity in the low temperature group were significantly higher than those in the control group …
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
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, Yin Xiao-Qing, Li Rui, Pei Qi, Lu Zi-Qi, Zhao Ming-Qin
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 …
Study On The Interaction Between The Astringent Constituents Of Different Varieties Of Chrysanthemum And Saliva, Tian Xing, Ye Hui-Jie, Liu Shi-Feng, Ouyang Yao-Li
Study On The Interaction Between The Astringent Constituents Of Different Varieties Of Chrysanthemum And Saliva, Tian Xing, Ye Hui-Jie, Liu Shi-Feng, Ouyang Yao-Li
Food and Machinery
Objective:This study aimed to understand the astringency perception difference and formation mechanism of different varieties of Chrysanthemum tea during drinking, and provide new research ideas and theoretical basis for the astringency perception and sensory research of edible flowers.Methods:5 different varieties of Chrysanthemum were selected to determined the main astringent chemical constituents by UV-Vis spectrophotometry. The perceiving intensity of the astringency of five different varieties of Chrysanthemum was measured and evaluated by using the intelligent taste analysis system of electronic tongue and the traditional sensory evaluation method. The interaction between the main astringent chemical constituents in Chrysanthemum and …
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
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, Xiao Feng-Qin, Liu Hui, Yang Yi-Liu, Yu Qian, Li Jia, Zhang Hong-Yin, Shao Shuai, Li Guang-Zhe, Yan Ming-Ming
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, Dou Yin-Hua
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, Xie Sai
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, Zhang Xue-Chen, Zhang Li-Mei, Huang Zhi-Gang, Zhong-Yao, Li He
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, Feng Shuo, Wang Yan-Gang, Wang Xin-Kun, Yuan Hao, Liu Wei, Guo Peng-Ning
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, Zhao Le-Ran, Wang Tao
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, Deng San-Xing, Sun Sai-Wei, Yang Meng-Meng, Zhang Kai, Li Shuai
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, Chen Jing-Wen
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, Liu Chun-Yan, Ding Jie, Deng Shang-Gui, Qin Wen, Liu Yan
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 …
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
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 …
Optimum Parameters And Application Of Buckwheat Noodle Composite Preformed Powder, Zhao Min, Yang Bao-Wei, Hu Jian, Wang Rong-Lan
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, Yu Xian-Long, Chu Bin, Xiao Hong-Wei, Zhang Wei-Peng, Zhao Feng, Zhang Zong-Chao
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 Industrial Auxiliary Materials Fermentation Of Cigar Tobacco Leaf, Ye Hui-Yuan, Ding Song-Shuang, Duan Wang-Jun, Huang Ming-Yue, Shi Xiang-Dong
Research Progress On Industrial Auxiliary Materials Fermentation Of Cigar Tobacco Leaf, Ye Hui-Yuan, Ding Song-Shuang, Duan Wang-Jun, Huang Ming-Yue, Shi Xiang-Dong
Food and Machinery
This paper reviews the exogenous additives such as microorganisms, enzymes and excipients currently applied to cigar tobacco leaf fermentation and their research and application results to improve the quality of tobacco leaves, and prospects the research direction of cigar tobacco industrial excipient fermentation.
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
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, Zhang Hao, Han Shu-Lei, Chen Huan, Hou Hong-Wei, Hu Qing-Yuan
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.
Optimal Extraction And Fatty Acid Analysis Of Oil From Canavalia Gladiata, Han Xiao-Cun
Optimal Extraction And Fatty Acid Analysis Of Oil From Canavalia Gladiata, Han Xiao-Cun
Food and Machinery
Objective:To make up for the lack of research on the extraction technology, fatty acid composition, and physical and chemical properties of Canavalia gladiata oil in China, and provide technical support for the development and utilization of Canavalia gladiata oil.Methods:The process parameters of extracting Canavalia gladiata oil with n-hexane were optimized. Gas chromatography-mass spectrometry (GC-MS) was used to analyze and determine the type and content of fatty acids in Canavalia gladiata oil.Results:The best extraction conditions for the Canavalia gladiata oil were as follows: the ratio of liquid-to-material was 25∶1 (mL/g), the temperature for extracting was 70 …
Effects Of Drying And Freezing On Volatile Components Of Zingiber Mioga(Thunb.) Rosc., Zhang Si-Jie, Luo Feng-Lian, Deng Miao, Ren Shu-Rui, Qing Zhi-Xing
Effects Of Drying And Freezing On Volatile Components Of Zingiber Mioga(Thunb.) Rosc., Zhang Si-Jie, Luo Feng-Lian, Deng Miao, Ren Shu-Rui, Qing Zhi-Xing
Food and Machinery
Objective:This study aimed to compare the differences of volatile components in flower buds of Zingiber mioga after drying and freezing.Methods:Volatile components in flower buds of Z. mioga was determined by headspace solid phase microextraction Gas Chromatography-Mass Spectrometer(HS-SPME-GC-MS) after drying and freezing, and the relative content was calculated by peak area normalization method.Results:Drying and freezing treatment had a significant effect on the volatile components of Z. mioga flower bud. A total of 152 volatile components were identified in fresh, frozen and dried Z. mioga flower bud, containing a variety of volatile pharmacodynamic components, mainly olefins, including …
Hot-Air Drying Characteristics And Mathematical Model Of Cantaloupe Slices, Zhang Xue Bo, Liu Xi Xian, Zou San Quan, Zhao Zhen Chao
Hot-Air Drying Characteristics And Mathematical Model Of Cantaloupe Slices, Zhang Xue Bo, Liu Xi Xian, Zou San Quan, Zhao Zhen Chao
Food and Machinery
Objective:In order to improve the quality of cantaloupe production and shorten the drying period.Methods:Use different blanching time (0.5, 1.0, 1.5, 2.0, 2.5 min), impregnation liquid (0.1%, 0.2%, 0.3%, 0.4%, 0.5% citric acid solution) to pretreat cantaloupe slices, and study different hot air temperature (35, 45, 55, 65, 75 ℃), air velocities (0.5, 1.0, 1.5, 2.0,2.5 m/s), and slice thicknesses (2, 4, 6, 8, 10 mm) on the hot air drying characteristics and moisture diffusivity coefficient of cantaloupe slices, different thin-layer drying mathematical models were fitted.Results:0.4% citric acid pretreatment yields the best quality dried product, and …
Analysis Of Characteristics And Energy Consumption Of Microwave Drying Of Pork, Chen Peng-Fei, Ling Jing, Yuan Xiao-Hong, Hu Tian-Tian, Wan Jiang-Hua
Analysis Of Characteristics And Energy Consumption Of Microwave Drying Of Pork, Chen Peng-Fei, Ling Jing, Yuan Xiao-Hong, Hu Tian-Tian, Wan Jiang-Hua
Food and Machinery
Objective:Exploring the microwave drying characteristics of pork and optimizing the microwave drying process of meat.Methods: microwave drying equipment with microwave frequency of 2 450 MHz and microwave output power of 70, 140, 210, 280, 350, 420 W were used for microwave drying of pork with dry mass of 20, 25, 30 g in this paper; Five classical thin-layer drying models were selected for non-linear fitting of drying data,R2(coefficient of determination) and RMSE (root mean square error) were used as evaluation indexes to screen the best drying model.Results:The Logarithmic model was the best model for microwave …
A Method Of Tobacco Leaf Grade Recognition Based On Convolutional Neural Network, Jiao Fang-Yuan, Shen Jin-Yuan, Hao Tong-Meng
A Method Of Tobacco Leaf Grade Recognition Based On Convolutional Neural Network, Jiao Fang-Yuan, Shen Jin-Yuan, Hao Tong-Meng
Food and Machinery
Objective:To solve the problem of low accuracy of tobacco grading. Methods:An improved tobacco leaf grading model based on convolutional neural network was proposed. According to the VGG16 network structure, the network model was built in a custom way. The traditional convolution was replaced by the hole convolution, which increased the image receptive field while avoiding. The loss of image features was changed, and the activation function was changed to Leaky_relu. The data distribution was corrected, and the hard saturation problem of the ReLU function was solved. 41 levels of tobacco leaf pictures were used for testing. Results:The …
Research Progress On Extraction,Pharmacological Effects And Microencapsulation Of Peppermint Oil, Shao Pei, Zhang Yu-Ying, Zhong Lin, Wang Pan, Miao Li-Kun
Research Progress On Extraction,Pharmacological Effects And Microencapsulation Of Peppermint Oil, Shao Pei, Zhang Yu-Ying, Zhong Lin, Wang Pan, Miao Li-Kun
Food and Machinery
In this paper, the research progress of peppermint oil at home and abroad in recent years was summarized from the aspects of extraction, pharmacological action and preparation method of microcapsule, and the new microcapsule technology is the follow-up research direction.
Research Progress On Detection Methods Of Chemically Synthesized Coccidiostat Residues, Pang Xing-Hao, Hu Xiao-Fei, Xing Yun-Rui, Sun Ya-Ning, Wang Yao
Research Progress On Detection Methods Of Chemically Synthesized Coccidiostat Residues, Pang Xing-Hao, Hu Xiao-Fei, Xing Yun-Rui, Sun Ya-Ning, Wang Yao
Food and Machinery
In this review, the detection Methods of chemically synthesized coccidiostat residues were summarized, with emphasis on the research progress of high performance liquid chromatography-tandem mass spectrometry, enzyme-linked immunosorbent assay, immunochromatographic test paper, surface enhanced Raman spectroscopy and other Methods. The development status and trend of detection Methods were discussed, and the future development direction was prospected.
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value, Xia Rui, Zhong Geng, Li Tian, Yang Wang-Fu, Gao Yu-Ge
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value, Xia Rui, Zhong Geng, Li Tian, Yang Wang-Fu, Gao Yu-Ge
Food and Machinery
Objective:Alkaline electrolyzed water (AEW) produced by drinking water electrolysis with three different negative REDOX potential values was used to study its physical and chemical properties, antioxidant and gastric acid relieving capacity.Methods:The pH value, oxidation-reduction potential (ORP), total dissolved solids (TDS) and mineral content of AEW were determined, and the free radical scavenging rate and anti-lipid peroxidation ability of AEW were studied by spectrophotometry. The acid capacity of different water samples in vitro was studied by artificial gastric model.Results:The negative ORP value of AEW is positively correlated with the pH value (P＜0.01). The scavenging …
Dynamic Changes Of Volatile Organic Compounds In Giant Salamander Liver During The Deodorization With Tea Water Extract, Liu Jun-Xia, Zhao Ping, Wan Xiao-Hui, Bie Ling-Ling, Jin Wen-Gang
Dynamic Changes Of Volatile Organic Compounds In Giant Salamander Liver During The Deodorization With Tea Water Extract, Liu Jun-Xia, Zhao Ping, Wan Xiao-Hui, Bie Ling-Ling, Jin Wen-Gang
Food and Machinery
Objective: This study aimed to investigate the effect of tea water extract on liver deodorization of giant salamander. Methods: The changes of volatile components in liver of giant salamander treated with tea water extract for 0, 5, 10, 15 and 20 min, were analyzed by gas chromatography-ion mobility chromatography (GC-IMS) combined with sensory odor value. Principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were performed on volatile compounds. Results: Compared with the control group, the fishy smell value of the liver of the giant salamander was significantly decreased after the treatment with tea water extract for 5 …
Effects Of Different Reheating Treatments On The Quality Of Frozen Cooked Eriocheir Sisensis, Sun Ying-Ying, Gao De-Mei, Xu Yan-Shun, Xia Wen-Shui
Effects Of Different Reheating Treatments On The Quality Of Frozen Cooked Eriocheir Sisensis, Sun Ying-Ying, Gao De-Mei, Xu Yan-Shun, Xia Wen-Shui
Food and Machinery
Objective:The effects of reheating methods on the quality of frozen cooked river crab were studied to provide a basis for the selection of reheating methods for frozen cooked crab. Methods:The crabs reheated with microwave and steaming without and with thawing were studied using reheating time, texture, flavor nucleotide, free amino acids and volatile flavor compounds. Results:The times of crabs reheated with steaming without thawing, steaming after thawing, microwave without thawing, and microwave after thawing to the center temperature of 75 ℃ were 720, 552, 173, 106 s, respectively. Compared with unthawed crabs, the reheated crab meat had …