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Full-Text Articles in Food Science

Research Progress On Extraction Of Phenols With Natural Deep Eutectic Solvent, Zhang Yi-Xin, Wu Xu-Ran, He Ruo-Han, Feng Shuo, Yang Feng-Qi Dec 2022

Research Progress On Extraction Of Phenols With Natural Deep Eutectic Solvent, Zhang Yi-Xin, Wu Xu-Ran, He Ruo-Han, Feng Shuo, Yang Feng-Qi

Food and Machinery

This review summarized the research status of NADES on the extraction and separation of phenols, discussed the main factors affecting the extraction efficiency, and prospected the future development direction.


Research Progress On New Extraction Technologies And Bioactivities Of Flavonoids From Orange, Liu Dan, Guo Huan, Wu Di, Gan Ren-You Dec 2022

Research Progress On New Extraction Technologies And Bioactivities Of Flavonoids From Orange, Liu Dan, Guo Huan, Wu Di, Gan Ren-You

Food and Machinery

The new extraction technologies of citrus flavonoids in recent five years were reviewed, including low eutectic solvent extraction, subcritical fluid extraction and magnetic molecular blot selective extraction.the bioactivities and mechanisms of citrus flavonoids, such as antioxidant, anti-inflammatory, antibacterial, anti-obesity, anti-diabetes, anti-cancer, intestinal protection, cardiovascular protection, liver protection and neuroprotection, were also expounded, and suggestions for further study of citrus flavonoids were proposed.


Research Progress Of Mushroom Sauce, Chen Jing, Tang Hao-Guo, Wang Jia-Kang, Yang Tong-Xiang, Ma Li-Ping Dec 2022

Research Progress Of Mushroom Sauce, Chen Jing, Tang Hao-Guo, Wang Jia-Kang, Yang Tong-Xiang, Ma Li-Ping

Food and Machinery

This review summarized the research achievements of mushroom sauce in recent years, from the aspects of raw and auxiliary materials selection, formula, and process research, analysis and testing, existing problems, and prospected the raw material quality and nutrition safety detection.


Research Progress Of Plant-Based Meat Products, Dou Kang-Ning, Zhao Yong-Gan, Jin Shao-Ju, Li Chao-Min, Deng Tong-Xing, Zhao Zhi-Jun Dec 2022

Research Progress Of Plant-Based Meat Products, Dou Kang-Ning, Zhao Yong-Gan, Jin Shao-Ju, Li Chao-Min, Deng Tong-Xing, Zhao Zhi-Jun

Food and Machinery

The concept, raw materials, technology, texture, sensory, nutrition, market, patent and safety of plant-based meat products were reviewed, and the achievements and shortcomings of the development of plant-based meat products were summarized. It is indicated that the next researching should be done from the protein types of raw materials, protein molecular modification, texturized protein production technology, genetic engineering technology transformation, etc.


Research Progress On The Sources And Detection Methods Of Determination Of Benzo-Α-Pyrene In Aquatic Products, Xia Hong, Liu Li, Peng Xi-Tian, Peng Li-Jun, Lin Chun Dec 2022

Research Progress On The Sources And Detection Methods Of Determination Of Benzo-Α-Pyrene In Aquatic Products, Xia Hong, Liu Li, Peng Xi-Tian, Peng Li-Jun, Lin Chun

Food and Machinery

This review summarized the source, properties, as well as the harm of benzo-α-pyrene exposure to aquatic products. The commonly used instrumental analysis methods for the detection of benzo-α-pyrene were also discussed, and the future research direction of benzo-α-pyrene detection was prospected.


Determination Of The Residues Of 15 Kinds Of Benzodiazepine Sedatives In Aquatic Products By Liquid Chromatography Tandem Mass Spectrometry, Zhang Qiu-Yun, Yang Hong-Sheng, Tan Xiu-Hui, Zhu Xiao-Hua, Chen Feng-Wei, Chen Hui-Min Dec 2022

Determination Of The Residues Of 15 Kinds Of Benzodiazepine Sedatives In Aquatic Products By Liquid Chromatography Tandem Mass Spectrometry, Zhang Qiu-Yun, Yang Hong-Sheng, Tan Xiu-Hui, Zhu Xiao-Hua, Chen Feng-Wei, Chen Hui-Min

Food and Machinery

Objective: This study aimed to eslablish a method for the determination of 15 benzodiazepine sedatives in aquatic products by liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Methods: The sample was extracted with acetonitrile solvent, and the extract was purified by solid phase extraction (Oasis PRIME HLB) column. After concentration, the mobile phase was used to determine the volume. The mobile phase consisted of 1% formic acid aqueous solution and acetonitrile solvent. The method was performed in multiple reaction monitoring (MRM) mode and quantified by internal standard method. Results: The results showed that the linear range of 15 sedatives …


Numerical Simulation Of Pitaya Freeze-Drying Process Based On Fractal Theory, Zhang De-Zheng, Yu Ke-Zhi, Zhang Tong Dec 2022

Numerical Simulation Of Pitaya Freeze-Drying Process Based On Fractal Theory, Zhang De-Zheng, Yu Ke-Zhi, Zhang Tong

Food and Machinery

Objective: To optimize the drying characteristics of dragon fruit freeze-drying process. Methods: Based on the fractal theory and the theory of heat and mass transfer in porous media, the COMSOL software was used to numerically simulate red pitaya slices with a thickness of 8, 10, 12, 14 mm and a radius of 40 mm to simulate the sublimation and drying stage of pitaya. The heat and mass transfer process in the internal porous medium, the real-time displacement of the ice interface during the ice sublimation process is obtained, the sublimation period is predicted, and the experimental verification is …


Effects Of Typical Hot Processing On The Quality Of Chestnut, Zhou Kui, Li Ming-Juan, Zhang Ya-Yuan, Zhou Qing Dec 2022

Effects Of Typical Hot Processing On The Quality Of Chestnut, Zhou Kui, Li Ming-Juan, Zhang Ya-Yuan, Zhou Qing

Food and Machinery

Objective: This study aimed to explore the appropriate cooking method of chestnut. Methods: Nine kinds of thermal treatment on the quality of chestnut were compared. The thermal treatment included chestnut fruit (roasting, cooking without water under normal-pressure, cooking within water under normal-pressure, cooking without water under high-pressure, cooking within water under high-pressure) and chestnut kernel (cooking without water under normal-pressure, cooking within water under normal-pressure, cooking without water under high-pressure, cooking within water under high-pressure). Results: The content of starch and polyphenols in chestnut were decreased by the nine kinds of thermal treatment, while the amylose content …


Survival, Regrowth And Morphotype Formation Of Salmonella Strains After Exposure To High Or Low Concentrations Of First Generation Qac In Water, Grace Umutesi Dec 2022

Survival, Regrowth And Morphotype Formation Of Salmonella Strains After Exposure To High Or Low Concentrations Of First Generation Qac In Water, Grace Umutesi

Theses and Dissertations

This study determines the differences in survival of eight Salmonella strains concentration of BAC in water, followed by regrowth in high and low nutrition conditions containing sublethal concentration of BAC. Our results show strain difference in survival, persistence of Salmonella in BAC at different concentrations. All eight strains of Salmonella were non-recoverable when exposed to 40 to 48 µg/ml BAC for 1h in water. When exposed to 24 µg/ml of BAC for 1 h in water, S. Typhimurium ATCC 14028 and S. Heidelberg ATCC 8326 cells were non-detectable from the initial 7 log CFU/ml. S. Blockley 7175, S. Virchow 7207, …


Investigating Quality Attributes And Wine Production Methods Of Arkansas-Grown Grapes, Amanda Fleming Dec 2022

Investigating Quality Attributes And Wine Production Methods Of Arkansas-Grown Grapes, Amanda Fleming

Graduate Theses and Dissertations

Grapevines (Vitis species) are grown worldwide to produce table grapes, juice grapes, dried grapes, and wine with the United States as one of the world’s largest wine and grape producers. Though not a large contributor to the U.S. grape and wine industry, Arkansas’ industry plays an important role in the state’s agritourism and economy. Most grapes grown in Arkansas’ warm climate include native species, such as muscadines (V. rotundifolia) and hybrids (crosses of Vitis species). Two important hybrid red wine grapes grown in Arkansas are Chambourcin, grown commercially for its positive viticulture and enological quality, and Enchantment, a newer cultivar …


Evaluation Of Extended Aging Type And Cooking Practices On Palatability Of Beef Steaks, Katharine Anne Bugenhagen Dec 2022

Evaluation Of Extended Aging Type And Cooking Practices On Palatability Of Beef Steaks, Katharine Anne Bugenhagen

Graduate Theses and Dissertations

Two studies were conducted to determine if sous vide was a viable way to improve palatability of various beef cuts, and to determine whether extended aging duration and the presence of a bone impacts the consumer ratings of beef short loins.When evaluating the impact of sous vide cooking (SVG) on multiple beef muscles, there was a muscle × method interaction for overall liking (P = 0.04). The traditionally cooked (TRAD) Longisimus lumborum (LL) was rated the highest (P < 0.05). The Chuckeye steak (CHE) was rated next, both TRAD and SVG, with the traditional ranked higher, this was followed by the Triceps brachii (TB) also for both TRAD and SVG, however for the TB the SVG ranked higher (P < 0.05). The TRAD Biceps femoris (BF) rated the lowest (P < 0.05) of all of the muscles. Shear force did no differ between the cooking treatments (P > 0.05), or was there an interaction between muscle × method for shear force measurements (P < 0.05). The LL was rated the highest for tenderness (P < 0.05) while the BF was rated the lowest (P < 0.05). The second study compared subprimals aged over three aging periods (21, 42 63 days), then split into bone-in or boneless steaks, there were no interactions observed within the consumer data (P ≥ 0.05). BI steaks were rated higher (P < 0.05) for juiciness and overall liking by consumers, however BI and BL were rated similarly by consumers for tenderness and flavor (P > 0.05). When evaluated by consumers, aging did …


The Invisible Meat Microcosmos: Investigations Of Processed Meats' Specific Spoilage Organisms, Rebecca Furbeck Dec 2022

The Invisible Meat Microcosmos: Investigations Of Processed Meats' Specific Spoilage Organisms, Rebecca Furbeck

Department of Animal Science: Dissertations, Theses, and Student Research

As humankind grows in population, so will our need to compete against bacterial populations which spoil foodstuffs before we are able to consume them. This dissertation aims to identify the bacterial communities responsible for meat spoilage, and the mechanisms that govern the behaviors of these organisms. The literature review summarizes the state of knowledge regarding factors that influence meat microbiome composition, and how analytical methods can influence research outcomes. Study 1 aimed to identify the impact of additional ingredients and processing steps on the microbial ecology of processed turkey products. The main specific spoilage organisms (SSOs) belonged to the orders …


Arkansas Soybean Research Studies 2021, Jeremy Ross Dec 2022

Arkansas Soybean Research Studies 2021, Jeremy Ross

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading soybean-producing state in the mid-southern United States. Arkansas ranked 11th in soybean production in 2021 compared to the other soybean-producing states in the U.S. The state represented 3.49% of the total U.S. soybean production and 3.49% of the total acres planted in soybean in 2021. The 2021 state soybean average yield was 52.0 bushels per acre, setting a new state record and surpassing the previous yield record of 51.5 bushels per acre set in 2020. The top five soybean-producing counties in 2021 were Mississippi, Phillips, Crittenden, Poinsett, and Arkansas (Table 1). These five counties accounted for …


Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International Nov 2022

Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International

Nexus – UNEP – Animal Welfare, Environment, Sustainable Development

This Resource Document has been developed to explore the Nexus (links) between Animal Welfare, the Environment, and Sustainable Development. The document includes relevant citations and reports addressing the topics encompassed by the Nexus. It will be maintained as a “living document” (subject to revision) in the WellBeing International Studies Repository. The original document and subsequent revisions will be kept in the Repository to provide a record of the changes.


Effect Of Egg White Powder On Frying Characteristics Of Surimi And Its Mechanism, Xie Dongfei, Deng Fenghong, Peng Peiqi, Huang Li, Hu Xiuting, Luo Shunjing Nov 2022

Effect Of Egg White Powder On Frying Characteristics Of Surimi And Its Mechanism, Xie Dongfei, Deng Fenghong, Peng Peiqi, Huang Li, Hu Xiuting, Luo Shunjing

Food and Machinery

Objective:The objective of this study is to investigate the effect of egg white powder addition on the fried characteristics of surimi and its influencing mechanism. Methods:The cheap silver carp was used as raw material, and the egg white powder was added to the surimi for compounding. The frying characteristics of surimi were characterized by measuring porosity, hardness and water absorption, and the dynamic rheological properties, foam stability and SDS-PAGE of surimi were measured to explore its influencing mechanism. Results:With the increase of egg white powder content, the porosity and water absorption of fried fish ball increased first …


Effects Of Hydration Temperature, Geldosage And Potassium Chloride Dosage On The Viscosity Of Kappa-Carrageenan Solution, Luo Chang-Rong, Zhang Qian, Zhou Jin-Jie, Zhou Wei, Yin Qian-Qian Nov 2022

Effects Of Hydration Temperature, Geldosage And Potassium Chloride Dosage On The Viscosity Of Kappa-Carrageenan Solution, Luo Chang-Rong, Zhang Qian, Zhou Jin-Jie, Zhou Wei, Yin Qian-Qian

Food and Machinery

Objective:To achieve accurate application of kappa-carrageenan as a gelling agent in food industries such as processed meats, dairy, desserts and jellies, as well as seamless capsule in pharmaceuticals and crushable beads in tobaccos. Methods: The viscosities of kappa-carrageenan solution prepared at different hydration temperature, different dosages of kappa-carrageenan dosage and potassium chloride were measured by digital viscometer. Results:① The hydration temperature had a great influence on the viscosity of kappa-carrageenan gel solution. With the increasing hydration temperature (fixed hydration time at 1 h), the viscosity of kappa-carrageenan gel solution decreased. Generally the higher the dosage of kappa-carrageenan, …


Effects Of Different Concentrations Of Free So2 And Dissolved Oxygen On Wine Color And Anthocyanins Content, Peng Xin, Yang Xing-Yuan, Asat Ahtam, Yang Fan, Li Ze-Han, Li Han-Lun Nov 2022

Effects Of Different Concentrations Of Free So2 And Dissolved Oxygen On Wine Color And Anthocyanins Content, Peng Xin, Yang Xing-Yuan, Asat Ahtam, Yang Fan, Li Ze-Han, Li Han-Lun

Food and Machinery

Objective:This study aimed to explore the effects of different concentrations of dissolved oxygen and free SO2 on the color and related parameters of Cabernet Sauvignon dry red wine during aging, and to provide basic data for enterprises to improve the aging process of Cabernet Sauvignon dry red wine.Methods:Cabernet Sauvignon dry red wine from Xinpuwang Wineyard in Shanshan County, Turpan, Xinjiang was used as the brewing material. The effects of different concentrations of free SO2 and dissolved oxygen on wine color, hue and anthocyanin content were observed during wine aging.Results:The wine was bright red …


Tomato Weight Prediction Based On Image Processing, He Ting-Ting, Li Zhi-Wei, Zhang Xin, Zhang Zhong-Li-Li, Xiao Xue-Peng, Dong Jing Nov 2022

Tomato Weight Prediction Based On Image Processing, He Ting-Ting, Li Zhi-Wei, Zhang Xin, Zhang Zhong-Li-Li, Xiao Xue-Peng, Dong Jing

Food and Machinery

Objective:A tomato weight detection method based on image processing was established to realize non-contact tomato weight detection. Methods:The binary image of tomato was obtained through image processing. The geometric features of tomato were extracted by pixel statistics and minimum circumscribed rectangle method, and correlation analysis was made between the characteristics and the real value of tomato weight, then the regression model of tomato weight detection with geometric features as parameters was established. Results:Compared with the real size of tomato, the measurement error of transverse and longitudinal diameter of Tomato by minimum external rectangle method was less than …


Primary Structure Characterization And Antioxidant Activity Of Polysaccharide From Zizyphus Jujuba Cv. Banzao, Li Nan, Zhang Xiangfei, Yang Chunjie Nov 2022

Primary Structure Characterization And Antioxidant Activity Of Polysaccharide From Zizyphus Jujuba Cv. Banzao, Li Nan, Zhang Xiangfei, Yang Chunjie

Food and Machinery

Objective:This study aimed to analyze the physicochemical properties, primary structure and antioxidant activity of polysaccharide from Zizyphus jujuba cv. Banzao.Methods:The polysaccharides were prepared by water extraction and alcohol precipitation, deproteinization with trichloroacetic acid and decolorization with hydrogen peroxide. The physicochemical properties of polysaccharides were studied, and the possible structures were predicted by Ultraviolet-visible (UV-Vis) and infrared (IR) spectroscopy. Finally, the free radical scavenging ability was determined.Results:The polysaccharide from Z. jujuba cv. Banzao contained the content of total sugar and uronic acid with 52.30% and 46.22%, respectively, and showed 64.70% of esterification degree, which was an …


Construction Of Evaluation Model Of Volatile Flavor Intensity Of Cyclic Stewed Beef Based On Principal Component Analysis, Meng Xiang-Ren, Gao Zi-Wu, Wang Heng-Peng, Tu Ming-Liang, Wu Dan-Xuan, Gao Su-Min, Liu Zong-Zhen Nov 2022

Construction Of Evaluation Model Of Volatile Flavor Intensity Of Cyclic Stewed Beef Based On Principal Component Analysis, Meng Xiang-Ren, Gao Zi-Wu, Wang Heng-Peng, Tu Ming-Liang, Wu Dan-Xuan, Gao Su-Min, Liu Zong-Zhen

Food and Machinery

Objective:In order to evaluate the difference of characteristic flavor intensity between different times of cyclic stewed beef.Methods:The volatile flavor compounds in circulating stewed beef were determined by solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS), and the key flavors with important contribution were screened out according to the relative odor activity value. The flavor substances contributed by circulating stewed beef were analyzed by principal component analysis, the flavor intensity evaluation model of cyclic stewed beef was established, and the comprehensive evaluation of cyclic stewed beef was carried out combined with sensory evaluation.Results:The seven key flavourings were n-hexanal, …


Effects Of The Dark Blue Pigment From Vaccinium Bracteatum Thunb Leaves On The Physicochemical Properties Of Rice Protein, Zhao Jiajia, Wang Meng, Li Yan, Qian Haifeng, Fan Mingcong, Wang Li Nov 2022

Effects Of The Dark Blue Pigment From Vaccinium Bracteatum Thunb Leaves On The Physicochemical Properties Of Rice Protein, Zhao Jiajia, Wang Meng, Li Yan, Qian Haifeng, Fan Mingcong, Wang Li

Food and Machinery

Objective:This study was to explore the improvement of structural and emulsifying properties of rice protein by interacted with the dark blue pigment of Vaccinium bracteatum Thunb leaves. Methods:The dark blue pigment was prepared from VBTL, and the changes of structural and emulsifying properties of rice protein before and after dyeing were analyzed. Results:The formation of binary complexes between the dark blue pigment and the rice protein decreased the color values of L* and b*, and the hue of the pigment-protein complex changed to dark blue color with the increase of the pigment concentration. The water solubility …


Effects Of Glycerol Application Ratio On The Distribution Of Moisture, Nicotine And Glycerol In Heated Cigarettes, Zhu Longjie, Zhang Yuan, Cao Yi, Qin Yanhua, Liu Mengmeng, Zhu Huaiyuan Nov 2022

Effects Of Glycerol Application Ratio On The Distribution Of Moisture, Nicotine And Glycerol In Heated Cigarettes, Zhu Longjie, Zhang Yuan, Cao Yi, Qin Yanhua, Liu Mengmeng, Zhu Huaiyuan

Food and Machinery

Objective:In order to optimize the process parameters of tobacco sheet of heated cigarette. Methods:12 gradient grades of tobacco sheets with glycerol addition ratio of 5%~30% were prepared under laboratory conditions. The mass of moisture, nicotine and glycerol in heated cigarette smoke, filter condensation section and tobacco core section were detected by GC-TCD method. And the mass distribution characteristics of main components, release rate, filtration rate and transfer rate were analyzed. Results:When 5%~30% glycerol was applied to the heated cigarette tobacco sheets, the water release rate was 88.6%~92.3%, which was mainly distributed in the smoke and filter condensation …


Determination Of Iodine In Milk Powder By Combing Microwave Digestion With Inductively Coupled Plasma Mass Spectrometry, Zhu Jia-Jun, Li Liang, He Shuang, Chen Jing-Zhou Nov 2022

Determination Of Iodine In Milk Powder By Combing Microwave Digestion With Inductively Coupled Plasma Mass Spectrometry, Zhu Jia-Jun, Li Liang, He Shuang, Chen Jing-Zhou

Food and Machinery

Objective:This study aimed to establish an efficient and accurate method for the determination of total iodine in milk powder by microwave digestion combining with inductively coupled plasma mass spectrometry (ICP-MS). Methods:Firstly, 0.2 mL of precipitant and 5 mL of ultrapure water were added for mixing and standing, and then 5 mL of nitric acid was added for microwave digestion. After cooling, the volume was fixed to 35 mL with ultrapure water, and then 10 mL of ammonia, 1 mL of stabilizer and 50 μL of TritonX-100 were added in sequence, avoiding the iodine loss. Results:The detection …


Uncertainty Evaluation For Determination Of Isocarbophos Residues In Tea By Quechers-Gas Chromatography-Tandem Mass Spectrometry, Lu Zhenhua, Yu Lifang, Cai Danping, Li Cheng Nov 2022

Uncertainty Evaluation For Determination Of Isocarbophos Residues In Tea By Quechers-Gas Chromatography-Tandem Mass Spectrometry, Lu Zhenhua, Yu Lifang, Cai Danping, Li Cheng

Food and Machinery

Objective:The uncertainty of determination of Isocarbophos residues in tea by using QuEChERS-gas chromatography-tandem mass spectrometry techniqne was evaluated. Methods:Isocarbophos residues in tea was determined by using "GB 23200.113—2018 National food safety Standard-Determination of 208 pesticides and metabolites residues in plant origin-Gas chromatography-tandem mass spectrometry method", and factors in the determination of isocarbophos were analyzed by establishing a mathematical model, including sample weighing, volume, calibration of standard solutions, repeatability and recovery rate, etc.. Results:When the residual amount of isocarbophos in tea was 0.050 mg/kg, the expanded uncertainty was 0.007 mg/kg, and the determination result was expressed as:ω …


Visualization Of Lamb Adulteration Based On Hyperspectral Imaging For Non-Destructive Quantitative Detection, Zhao Jing-Yuan, Zhang Jun-Qin, Sun Mei, Chen Xing-Hai, Liu Ye-Lin Nov 2022

Visualization Of Lamb Adulteration Based On Hyperspectral Imaging For Non-Destructive Quantitative Detection, Zhao Jing-Yuan, Zhang Jun-Qin, Sun Mei, Chen Xing-Hai, Liu Ye-Lin

Food and Machinery

Objective: This study aimed to establisha rapid and accurate prediction method of lamb adulteration by using visible/near-infrared (400~1 000 nm) and short-wave near-infrared (900~1 700 nm) hyperspectral imaging techniques.Methods: The data acquisition of lamb adulterated with different proportions of duck meat using visible/near-infrared (400~1 000 nm) and short-wave near-infrared (900~1 700 nm) hyperspectral imagers was performed to compare the effect of partial least squares (PLS) modeling with different spectral preprocessing methods in the two band ranges. Then the normalized preprocessing method was selected in the visible-NIR band, and the standard normal variate transformation (SNV) preprocessing method was …


Construction And Application Of A Comprehensive Evaluation Index System For Food Safety, Zhou Yuan, Xue Rui-Nan, Wei Ying, Li Ming-Qi Nov 2022

Construction And Application Of A Comprehensive Evaluation Index System For Food Safety, Zhou Yuan, Xue Rui-Nan, Wei Ying, Li Ming-Qi

Food and Machinery

Objective:This study aimed to build a unified and standardized comprehensive food safety evaluation index system. Methods: The research status of the comprehensive evaluation index domestic and abroad system of food safety were summarized from two levels of theoretical research and practical exploration. Results: Based on the analytic hierarchy process and Delphi method, a set of comprehensive evaluation index system of food safety with 6 criteria, 24 first-level indicators and 41 secondary indicators was constructed; this set of indicators combined with relevant statistical data was used to carry out an empirical analysis of the food safety situation in …


Analysis Of Pesticide Residues And Heavy Metal Pollution In Leek, Wang Xiali, Yan Jian, Zhang Li, Li Tao, Zhang Jihong Nov 2022

Analysis Of Pesticide Residues And Heavy Metal Pollution In Leek, Wang Xiali, Yan Jian, Zhang Li, Li Tao, Zhang Jihong

Food and Machinery

Objective:This study aimed to help with the scientific management of leek food safety in Hunan Province. Methods: 24 kinds of pesticides and 5 kinds of heavy metals in 690 leek samples from Hunan Province were detected. Results:① Pesticide residues were detected in 23.19% of the 690 samples, and the top three pesticides were determined to be carbendazim, procymidone and cypermethrin. The exceeding rate of pesticide residues was 5.80%, and the highest exceeding rate was 2.61% of procymidone. ② The detection rate of heavy metal elements was 77.68%, and the exceeding rate was 3.62%. The highest detection rate …


Determination Of Three Methylimidazole Compounds In Food Flavors By Solid Phase Extraction Coupled With Ultra-Performance Liquid Chromatography-Mass Spectrometry, Zhou Yanhua, Li Tao, Xiang Jun, Xu Wenyang Nov 2022

Determination Of Three Methylimidazole Compounds In Food Flavors By Solid Phase Extraction Coupled With Ultra-Performance Liquid Chromatography-Mass Spectrometry, Zhou Yanhua, Li Tao, Xiang Jun, Xu Wenyang

Food and Machinery

Objective: This study aimed to establish a method for quick determination of 3 kinds ofmethylimidazole compounds in food flavor. Methods:The food flavor was extracted with 5% trichloroacetic acid solution and purified with PCX mixed cationic solid phase extraction column. Finally, the qualitative and quantitative analysis was carried out by ultra- performance liquid chromatography-mass spectrometry (UPLC-MS/MS) and internal standard method. Results: The linear relationship between the three methyl imidazole compounds was good in the range of 5.0~400.0 ng/mL, with correlation coefficient R2≥0.997. The limits of detection were 0.030~0.450 μg/kg and the limits of quantification (LOQ) …


Design Of On-Line Nondestructive Rapid Detection System For Tilapia Descaling Rate Based On Machine Vision, Li Pengpeng, Li Yule, Zeng Fanyi, Liu Yang, Zhang Xu, Wang Huihui Nov 2022

Design Of On-Line Nondestructive Rapid Detection System For Tilapia Descaling Rate Based On Machine Vision, Li Pengpeng, Li Yule, Zeng Fanyi, Liu Yang, Zhang Xu, Wang Huihui

Food and Machinery

Objective:Improve the quality and efficiency of tilapia processing and increase the added value of products.Methods:For the fluorescence response difference of fish scales and fish skin under ultraviolet excitation, a rapid detection system for tilapia descaling rate based on machine vision technology was constructed. After image pre-processing, background segmentation, ROI region selection, and rapid identification of discaled areas, the scaled and descaled area images were obtained. Then the scaling rate was calculated and the detection accuracy of the system was tested. Results:The accuracy of the system scaling rate detection ranged from 90.18% to 94.14%.Conclusion:The automatic …


The Design Of 3d Icing Sugar Printer Based On Room Temperature Extrusion, Wang Qiaolan, You Xiaoping Nov 2022

The Design Of 3d Icing Sugar Printer Based On Room Temperature Extrusion, Wang Qiaolan, You Xiaoping

Food and Machinery

Objective:The paper aims to design a 3D icing sugar printer that meets the requirements of safety, hygiene, convenient operation, and stable structural performance. Methods:The 3D icing sugar printer includes the mechanical mechanism and control system. The mechanical structure adopts a gantry structure and reforms the food can. The control system adopts "Industrial PC + Motion control card" mode. Results:Fast food can replacement (< 30 s); fast printing speed (≥5 000 mm/min), adjustable speed; printing accuracy (<1 mm); good strength, expansion rate and surface roughness of the printed objects. The image recognition and processing system with the self-light …