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Articles 42541 - 42570 of 255703

Full-Text Articles in Life Sciences

Improvement Of Electrification Of Hand-Made Cigar Machine, Jun-Yao Li, Zi-Xiang Huang, Jian Wang, Qun-Ling Guo, Rong Jian, Tao Chen, You-Zhi Shi Feb 2023

Improvement Of Electrification Of Hand-Made Cigar Machine, Jun-Yao Li, Zi-Xiang Huang, Jian Wang, Qun-Ling Guo, Rong Jian, Tao Chen, You-Zhi Shi

Food and Machinery

This paper improves the traditional cigar machine and configures endogenous mechanical power instead of manual. The SA / TDR63M4 geared motor is selected through theoretical calculation to make the electric cigar machine run steadily. The improved electric cigar machine reduces the labor intensity of staff, the average daily output efficiency can increase by 20.13%, the standard deviation of cigar resistance decreases from 109.816 kPa to 73.542 kPa, and the standard deviation of circumference decreases from 0.613 mm to 0.370 mm, indicating that the electric cigar machine can improve the output efficiency of round-head flat-tailed hand-made cigars and ensure the consistency …

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Research On Pre-Packaged Food Detection Based On Machine Vision, Wen-Xiu Li, Qiu-Ping Luan Feb 2023

Research On Pre-Packaged Food Detection Based On Machine Vision, Wen-Xiu Li, Qiu-Ping Luan

Food and Machinery

In order to improve the detection accuracy of pre-packaged food, a defect detection system based on machine vision was designed. The detection system mainly includes image acquisition module, image processing and analysis module, output execution module and so on. The image processing method was described in detail. The image denoising model based on partial differential equation was used. The defect region was segmented by double threshold segmentation method. Finally, BP neural network was used to classify defects according to circumference, area and roundness. The feasibility and effectiveness of the method ware verified by experiments. The experimental results show that the …

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Effects Of 60Co-Γ Ray Irradiation On Sterilization And Quality Of Youtazi, A-Qian Shen, Wen-Shu Huang, Tong Li, Shu-Chang Chen, Zuo-Shan Feng, Yu-Jia Bai Feb 2023

Effects Of 60Co-Γ Ray Irradiation On Sterilization And Quality Of Youtazi, A-Qian Shen, Wen-Shu Huang, Tong Li, Shu-Chang Chen, Zuo-Shan Feng, Yu-Jia Bai

Food and Machinery

In order to explore the suitable irradiation range of 60Co-γ ray irradiation on Youtazi, which was adopted 60Co-γ ray irradiation with different irradiation dose to investigate the effects of irradiation dose on microorganism, acid value (AC), peroxide value (POV) and chromatic aberration of Youtazi under different conditions. The results showed that the number of microorganisms in Youtazi decreased with the increase of irradiation dose, and the range of irradiation dose was 3~7 kGy. Irradiation can slow down the increasing trend of acid value in Youtazi during storage, and the higher the irradiation dose, the lower the acid value …

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Effects Of Starch, Fat, Protein And Nacl On Antibacterial Activity Of Chlorine Dioxide, Qiu-Yun Bi Feb 2023

Effects Of Starch, Fat, Protein And Nacl On Antibacterial Activity Of Chlorine Dioxide, Qiu-Yun Bi

Food and Machinery

In this paper, the sensitivity of Gram-negative bacteria, Gram-positive bacteria, yeast, fungal spores and Bacillus cereus spores of several food borne microorganisms in the relative humidity of 90% and 0.08 mg/L gaseous ClO2 was studied. The results showed that the resistance of Gram-negative bacteria, Gram-positive bacteria, yeast, fungal spores and Bacillus cereus spores to gaseous ClO2 gradually increased. Through the treatment of gaseous ClO2, the average reduction of microorganism was 0.1~3.5 lg (CFU/cm2). At the same time, the effects of starch, fat, protein and NaCl in food on the antibacterial activity of gaseous ClO …

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Effects Of Different Organic Acid Impregnating Treatments On The Quality Of Freeze-Dried Apple Slices, Qian-Ju Wang, Ting-Cai Yan, Qiu-Ju Yan, Chun Hua, Feng Zhou, Hai-Ou Wang Feb 2023

Effects Of Different Organic Acid Impregnating Treatments On The Quality Of Freeze-Dried Apple Slices, Qian-Ju Wang, Ting-Cai Yan, Qiu-Ju Yan, Chun Hua, Feng Zhou, Hai-Ou Wang

Food and Machinery

The fresh-cut apple slices were impregnated with different concentrations (1%, 2%, 3% and 4%) of organic acid including citric acid, ascorbic acid, malic acid and acetic acid. The color, yield, rehydration, deformation rate, texture characteris-tics and microscopic pore structure of freeze-dried apple chips were used as indicators to analyze the effect of different acid immersion on the quality of vacuum freeze-dried apple chips. The results showed that the △E value of freeze-dried apple slices treated with citric acid, ascorbic acid and malic acid increased with the increase of acid concentration, with relatively small △E value treated with acetic acid, …

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Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil, Yun-Yun Chen, Jin-Ying Wang, Xing-Rui Wang, Yu-Ze Han Feb 2023

Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil, Yun-Yun Chen, Jin-Ying Wang, Xing-Rui Wang, Yu-Ze Han

Food and Machinery

In order to improve the quality of flax oil, the conventional hydration method was used to optimize the degumming process conditions and analyze the main physicochemical indexes. Taking the degumming rate as an indicator, the effects of temperature, time, water addition and phosphoric acid addition on the degumming effect of flax seed oil were studied respectively. Optimizing the degumming conditions of flax seed oil based on single factor and Box-Behnken center combination experimental design principle. The results showed that the best process conditions for degumming by conventional hydration method of flax seed oil: the temperature of 63.7 ℃, the time …

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Optimization Of Preparation Technology And Structural Characterization Of Tarragon Essential Oil Nanocapsules, Ying Liang, Hui-Yun Zhang, Huai-Bin Kang Feb 2023

Optimization Of Preparation Technology And Structural Characterization Of Tarragon Essential Oil Nanocapsules, Ying Liang, Hui-Yun Zhang, Huai-Bin Kang

Food and Machinery

Chitosan-tarragon essential oil nanocapsules were prepared by ion gelation method. The effects of the mass ratios of tarragon essential oil to chitosan, pH of chitosan solution, and the mass ratio of sodium tripolyphosphate to chitosan on the encapsulation rate of tarragon essential oil nanocapsules were investigated. Box-Behnken experiment design and response surface analysis were used to optimize the preparation process of nanocapsules, and the quadratic regression model was established. The results showed that the optimum preparation process of tarragon essential oil nanocapsules was the mass ratio of tarragon essential oil to chitosan 2∶1, pH=3.5, and the mass ratio of sodium …

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Effect Of Three Drying Methods On The Quality Of Taihe Toona Sinensis Bud, Yan-Hong Liu, Zhang-Ping Xiong, Chun-Yan Ji, Shuang-Fang Li, Sheng-Jie Liu Feb 2023

Effect Of Three Drying Methods On The Quality Of Taihe Toona Sinensis Bud, Yan-Hong Liu, Zhang-Ping Xiong, Chun-Yan Ji, Shuang-Fang Li, Sheng-Jie Liu

Food and Machinery

The natural drying, hot air drying at different temperatures and vacuum freeze drying were carried out on the buds of Taihe toon respectively. The changes of nutrient components such as VC, chlorophyll, total flavone and protein and the rehydration performance of Taihe toon buds after drying were determined. The effects of different drying methods on the quality of Taihe toon buds were comprehensively evaluated. In the dry products obtained by vacuum freeze-drying, the retention of VC, chlorophyll, total flavonoids and protein was the highest, which were 74.00 mg/100 g, 14.1 mg/g, 3.50 mg/g, 8.12 mg/g, respectively. …

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Research Progress On The Extraction Of Plant Polyphenols, Fu-Lin Tian, Wen-Jing Huang, Zhan Wang, Xian-Kui Qin, Wang-Yang Shen, Qiao-Yu Cai Feb 2023

Research Progress On The Extraction Of Plant Polyphenols, Fu-Lin Tian, Wen-Jing Huang, Zhan Wang, Xian-Kui Qin, Wang-Yang Shen, Qiao-Yu Cai

Food and Machinery

In this review, the non-mentioned extraction methods of plant polyphenol in the existing research are summarized, including subcritical extraction, low eutectic extraction, and pressurized extraction, etc. The principles, advantages and disadvantages of different extraction methods are deeply analyzed. Moreover, the development direction of plant polyphenol extraction is prospected.

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Research Progress On Microorganism Of Dry Cured Ham, Ming Ju, Xin Liu, Guan-Hao Li, Qian-Kun Zheng, Min Li, Chun-Xiang Piao, Ming-Xun Cui Feb 2023

Research Progress On Microorganism Of Dry Cured Ham, Ming Ju, Xin Liu, Guan-Hao Li, Qian-Kun Zheng, Min Li, Chun-Xiang Piao, Ming-Xun Cui

Food and Machinery

This paper summarized the research status of microorganisms in dry cured ham, summarized the influence of yeast, mold and bacteria on the microbial diversity of ham, elaborated the influence of mycotoxins, pathogenic bacteria and spoilage bacteria on the safety of ham, and prospected the development direction of dry cured ham fermentation industry.

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Research On Application Of Modified Atmosphere In Fresh-Keeping Technology Of Fruits And Vegetables In Cold Chain Logistics, Wei He Feb 2023

Research On Application Of Modified Atmosphere In Fresh-Keeping Technology Of Fruits And Vegetables In Cold Chain Logistics, Wei He

Food and Machinery

This study summarizes the application research of the modified atmosphere preservation technology of fruits and vegetables in cold chain logistics domestic and abroad, and summarizes the basic principles of modified atmosphere preservation technology and its application status of fruits and vegetables in cold chain logistics domestic and abroad. The trend of the application of modified atmosphere preservation technology for fruits and vegetables in cold chain logistics will help the healthy development of Chinese fruit and vegetable industry.

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Application Of Food In Functional Products From The Perspective Of Antioxidant Dietary Supplement, Yi Sa Feb 2023

Application Of Food In Functional Products From The Perspective Of Antioxidant Dietary Supplement, Yi Sa

Food and Machinery

Anti-oxidation is an effective process to inhibit the oxidation of free radicals. The human body produces anti-oxidation substances as well as free radicals. With the improvement of material life, people hope to satisfy their health needs by eating natural and healthy food. In this paper, through the analysis of the raw materials and the compatibility of the products, it is found that the food and the extract are widely used in the anti-oxidation functional food, and the anti-oxidation function of the raw materials and the anti-oxidation function of the dietary supplement have been developed, the general situation of the use …

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Effect Of L-Cysteine Hydrochloride On The Contents Of Four Toxic Aldehydes And Fluorescent Ages In Biscuits, Ting Weng, Jie Zheng, Cai-Huan Huang, Shi-Yi Ou Feb 2023

Effect Of L-Cysteine Hydrochloride On The Contents Of Four Toxic Aldehydes And Fluorescent Ages In Biscuits, Ting Weng, Jie Zheng, Cai-Huan Huang, Shi-Yi Ou

Food and Machinery

In the current study, different levels of L-cysteine hydrochloride (0.3, 0.6, 1.0, 1.5 g/kg) were incorporated in dough for the preparation of biscuits to investigate the effect of L-cysteine on the appearance and the content of four toxic aldehydes and fluorescent advanced glycation end products(AGEs) in biscuits. The results showed that the addition of L-cysteine hydrochloride brightened the color of the biscuits, and cause a slight decrease in pH values. The incorporation of L-cysteine hydrochloride significantly decreased the content of 5-hydroxymethyl furfural(HMF), 3-deoxyglucosone(3-DG), glyoxal(GO), methylglyoxal(MGO) and fluorescent AGEs in biscuits in a dose-dependent manner. The addition of L-cysteine at the …

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Preparation And Structural Characterization Of Zinc-Binding Antioxidant Peptides From Corbicula Fluminea Hydrolysate, Jing-Jing Liu, Yun-Tao Xu, Chen-Hui Zhu, Qian-Qian Huang, Yao-Ping Han, Xue-Feng Wang, Ran Zhang, Yang-Jun Dai Feb 2023

Preparation And Structural Characterization Of Zinc-Binding Antioxidant Peptides From Corbicula Fluminea Hydrolysate, Jing-Jing Liu, Yun-Tao Xu, Chen-Hui Zhu, Qian-Qian Huang, Yao-Ping Han, Xue-Feng Wang, Ran Zhang, Yang-Jun Dai

Food and Machinery

Using clam meat as protein source, the hydrolysate was obtained by enzymehydrolysis with neutral protease. Antioxidant peptides were then separated and purified from the enzymatich-ydrolysate of Corbicula flumineaby using glucose gel G-50. Zinc-binding antioxidant peptides were prepared according to optimal process. Qualitative analysis of chelate products was carried out byninhydrin method and sodium sulfide method. Ultraviolet spectra, Fourier infrared and fluorescent light spectra, X-radiation diffraction and scanning electron microscopy were applied to predict the structure of the chelate products. The results showed that the product powder is a kind of polypeptide zinc chelate. The carboxyl, amino and amide bonds of …

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Physicochemical And Functional Characterization Of Enzymatic Modification Of Dietary Fiber In Two Edible Fungus, Xi-Ming Yang, Hong-Yan Xu, Chao Wang, Sheng-Nan Li, Xin-Rui Zhao Feb 2023

Physicochemical And Functional Characterization Of Enzymatic Modification Of Dietary Fiber In Two Edible Fungus, Xi-Ming Yang, Hong-Yan Xu, Chao Wang, Sheng-Nan Li, Xin-Rui Zhao

Food and Machinery

In this study, two kinds of edible fungus Sporisorium reilianum and Pleurotus eryngii were used as raw materials. Soluble dietary fiber (S-SDF, P-SDF) and insoluble dietary fiber (S-IDF, P-IDF) were prepared by enzyme-gravimetric method. The physicochemical properties including swelling capacity, water holding capacity and oil holding capacity, and the functional properties including glucose adsorption capacity, sodium cholate adsorption capacity, cholesterol adsorption capacity and glucose dialysis retardation index were measured respectively. Results showed that S-SDF had the strongest swelling force (11.83 mL/g). P-IDF had the strongest water holding capacity (4.55 g/g). P-SDF had the strongest oil holding capacity (3.01 g/g). S-IDF …

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Evaluation Of Uncertainty In Determination Of Enrofloxacin And Ciprofloxacin Residues In Bean Sprouts By Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry, Yuan-Xu Shi, Shui-Feng Zhang, Xiang-Jie Pan, Ting-Ting Feng, Lu-Lu Wang Feb 2023

Evaluation Of Uncertainty In Determination Of Enrofloxacin And Ciprofloxacin Residues In Bean Sprouts By Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry, Yuan-Xu Shi, Shui-Feng Zhang, Xiang-Jie Pan, Ting-Ting Feng, Lu-Lu Wang

Food and Machinery

A method for the determination of trace-enrofloxacin and ciprofloxacin in bean sprouts by using ultra- performance liquid chromatography-tandem mass spectrometry was established. The mathematical model was established and used to evaluate the uncertainty components of this method. The sample was extracted with 0.1% acid acetonitrile directly, and purified by prime HLB (SPE), then analyzed by UPLC-MS/MS. The results showed that the main sources of uncertainty arose from the standard curve fitting and standard solution. The expanded uncertainty was 1.5 and 2.3 μg/kg for enrofloxacin and ciprofloxacin contents of 8.6 and 11.0 μg/kg in bean sprouts (k=2), respectively.

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Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method, Qian Xi, Zhi-Yong Zhang, Kai Yuan, Dong-Sheng Guo, Ying-Rui Wu Feb 2023

Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method, Qian Xi, Zhi-Yong Zhang, Kai Yuan, Dong-Sheng Guo, Ying-Rui Wu

Food and Machinery

The effects of temperature (5~40 ℃), water content (10.14%~29.55%) and frequency (1~100 kHz) on quinoa capacitance were studied by LCR meter. Based on the multiple regression analysis method, and the optimal excitation frequency (21 kHz) and water content detection model for quinoa water content detection were determined. The minimum system board of MSP430F149 microcontroller, TFT touch-screen, AD5933 impedance measurement chip, self-made concentric circle capacitance sensor and DS18B20 digital temperature sensor were selected to complete the design of the quinoa moisture rapid detector. The accuracy test of the detector showed that the average relative error of quinoa water content test results …

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Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou Feb 2023

Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou

Food and Machinery

Using flow injection analysis technology, online distillation, extraction, and color development, a continuous flow analysis method for rapid determination of volatile phenol residues in fish meat and its products was established. The results showed that the linear range of the established detection method was 0.00~40.00 μg/L, with the correlation coefficient r=0.999 9, the detection limit of the method is 0.030 mg/kg, with the RSD ranging from 0.952% to 6.543% (n=11). The standard recovery rate was 72.000%~90.827%. Compared with the standard method, this method had the advantages of accuracy, efficiency, simplicity, and environmental protection, and was suitable for the promotion and …

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Rapid And Nondestructive Detection Of Physicochemical Properties Of Marzipan Based On Near Infrared Spectroscopy, Su-Bin Chen Feb 2023

Rapid And Nondestructive Detection Of Physicochemical Properties Of Marzipan Based On Near Infrared Spectroscopy, Su-Bin Chen

Food and Machinery

A calibration model of near-infrared spectroscopy for the determination of water and total sugar is established and optimized in order to realize the rapid detection of physical and chemical indexes of marzipan. The partial least square method is used to establish NIR calibration models for the determination of water and total sugar in marzipan. Then, the abnormal sample removal, spectral transformation, sample set partition and characteristic wavelength selection are used to optimize its performance. The results show that the number of modeling wave points of the moisture determination model is reduced to 0.8% of the total spectrum, R and R …

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Generation Logic And Governance Path Of Crimes Against Food Safety Based On The Perspective Of Criminal Economics, Qiang Meng, Chun-Lei Li Feb 2023

Generation Logic And Governance Path Of Crimes Against Food Safety Based On The Perspective Of Criminal Economics, Qiang Meng, Chun-Lei Li

Food and Machinery

In view of the high incidence of crimes against food safety in China, the main reason is that the income of the crime is huge while the cost is very low, and the judicial status quo of “lighter” punishment for crimes against food safety, through the analysis framework of crime economics model, this paper makes a legal empirical study on the data of free lawsuit in 2019, and points out that efforts should be made to increase the direct cost of crime, expected punishment cost and conviction follow-up cost. Only by urging it to return to the criminal policy track …

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Effects Of Regenerator And Refrigerant On Performance Of Cascade Refrigeration System, Zheng Liang, Jiang Shen, Si-Yu Han Feb 2023

Effects Of Regenerator And Refrigerant On Performance Of Cascade Refrigeration System, Zheng Liang, Jiang Shen, Si-Yu Han

Food and Machinery

In order to optimize the cascade refrigeration system, the thermodynamic models of cascade refrigeration systems were established in this study, and the effects of low and high temperature stage condensation temperature, and regenerator position on the performance of R449A/CO2, NH3/CO2, R404A/CO2 cascade refrigeration systems were compared and analyzed. The results show that: at the same low temperature stage evaporation temperature, the optimal low temperature stage condensation temperature of the NH3/CO2 system is lower than that of the R449A/CO2 and R404A/CO2 systems, and the best COP of the NH …

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Multi-Objective Lightweight Design For Big Arm Of Md-1200yj Palletizing Robot, Ying He, Han Gao, Chao Ma, Li Gu Feb 2023

Multi-Objective Lightweight Design For Big Arm Of Md-1200yj Palletizing Robot, Ying He, Han Gao, Chao Ma, Li Gu

Food and Machinery

Finite element model of big arm of MD-1200YJ palletizing robot was established,the accuracy of the finite element model was verified by modal test.By static analysis taking into account dynamic factors, constrained modal analysis, vibration response test and frequency response analysis to determine to use minimal mass, maximizing the first and second natural frequency, minimizing the maximal stress, minimizing the maximal deformation and as the optimization objectives. Taking structure parameters as design variables and boundary conditionsof design variables as the constraint conditions, the approximation models of objective functions and constraint functions were established by the Box-Behnken and the RSM. The optimal …

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Design Of Weighing System For Micro Mixing Powdery Particles, Da-Pan Hou, Ju-Dong Liu Feb 2023

Design Of Weighing System For Micro Mixing Powdery Particles, Da-Pan Hou, Ju-Dong Liu

Food and Machinery

To improve the weighing accuracy and efficiency of mixed powder granules, the material characteristics of the mixed powder granules were studied. The material characteristics of mixed powdery particles are studied. According to the influence of the density, binding property and quantitative size of the mixed materials on the accuracy of quantitative feeding, a method of combined calculation after volumetric quantitative molding is proposed to solve the quantitative error. Studed The influence of the combination model on the combination quantitative error, and the influence of the single bucket quantitative error on the combination process in the combination process. The volume forming …

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Design Of Spherical Type 360° Of Tea Stirring Machine, Flow Field Analysis And Experimental Analysis, Jun Yang, Mu-Hua Liu, Cheng-Zhi Ruan, Bo Zhang, Jiang-Hua Ye Feb 2023

Design Of Spherical Type 360° Of Tea Stirring Machine, Flow Field Analysis And Experimental Analysis, Jun Yang, Mu-Hua Liu, Cheng-Zhi Ruan, Bo Zhang, Jiang-Hua Ye

Food and Machinery

In order to solve the problem of uneven distribution of flow field in the working process of traditional cylindrical tea stirring machine, a new type of 360° spherical tea stirring machine is designed, and the structure of hot air conveying pipe of the tea stirring machine is optimized. The computational fluid dynamics software STAR-CCM+ is used to simulate the flow field of the spherical tank of the stirring machine. And the prototype is tested and verified. The results show that after the installation of annular guide plate on the air supply pipe of the 360° stirring machine, the temperature offset …

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Systematic And Innovative Design Of Zhaoqing Wrapped Steamed Zongzi Package, Li Yan, Hai Fang, Ying-Min Deng Feb 2023

Systematic And Innovative Design Of Zhaoqing Wrapped Steamed Zongzi Package, Li Yan, Hai Fang, Ying-Min Deng

Food and Machinery

Zhaoqing wrapped steamed zongzi package has some problems in the market, such as uneven package design in level, lack of emphasis on user experience, lack of regional cultural characteristics. Through the analysis of user and use situation, extract the needs of good user experience in Zhaoqing wrapped steamed zongzi package, regional culture inheritance, green environmental protection and energy saving. Then analyze specific forms of Zhaoqing area culture to extract its regional cultural symbol elements. Finally,systematic and innovative design for “Zong Pin” wrapped steamed zongzi package, including brand image design, humanization design and green environmental protection design.

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Expression, Strengthening And Development Of Color Association In Food Packaging Design, Li Xia Feb 2023

Expression, Strengthening And Development Of Color Association In Food Packaging Design, Li Xia

Food and Machinery

Food packaging with strong color association can not only transmit food information, but also let consumers understand the cultural connotation behind the product and attract consumers' attention. Taking the associativity of color as the starting point, analyzing the color elements in food packaging based on the relevant theories of color psychology, enhancing the color impact of modern food packaging design, and enhancing the visual experience of consumers, with creating more social value, optimize the color experience of consumers and provide color services for brand extension.

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Establishment Of Microbial Prediction System For Shelf Life Of Chilled Chicken, Yang Qu, Chang-Yan Zhou, Yu-Juan Suo, Dong-Lai Zhang, Yi-Yi Han, Dong-Sheng Feng, Xiao-Jun Yang, Miao-Yun Li Feb 2023

Establishment Of Microbial Prediction System For Shelf Life Of Chilled Chicken, Yang Qu, Chang-Yan Zhou, Yu-Juan Suo, Dong-Lai Zhang, Yi-Yi Han, Dong-Sheng Feng, Xiao-Jun Yang, Miao-Yun Li

Food and Machinery

Enterobacteriaceae, Brochothrix thermosphacta, and total viable counts (TVC) are the important parameters that affect the shelf life of chilled chicken. Discovering the correlation between the parameters and the accuracy of the shelf-life prediction is conducive to monitoring the storage of chilled chicken. To develop microbial prediction system for shelf life of chilled chicken, the bacterial counts were calculated to establish the growth model of these parameters using SGompertz model. Meanwhile, the Pearson correlation coefficient analysis was performed for the parameters and the accuracy of the shelf-life prediction. Then the prediction system was written by Visual Basic (VB) and verified with …

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Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang Feb 2023

Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang

Food and Machinery

To investigate the preservation effect of chitosan composite coating on refrigerated mantis shrimps,taking the mantis shrimp as the subject, the chitosan, vitamin C, and corn starch as the coating materials, and the sensory evaluation, total colony (TVC), pH, volatile base nitrogen content (TVB-N), thiobarbituric acid (TBA) as the investigation index, the effects of chitosan-Vc-corn starch composite coating on mantis shrimps was studied. Results: the chitosan-VC-corn starch composite coating group was effectively delayed the increase of the TVC, pH value, TVB-N value and TBA value of mantis shrimp samples , and the effect was better than that of the control group …

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The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang Feb 2023

The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang

Food and Machinery

The fruit of Jiefang zhong loquat was fumigated with 10, 20, 50 μmol/L MeJA for 8 hours. The effects of MeJA treatment on the postharvest quality of loquat during (4±1) ℃ cold storage were studied by measuring the respiratory intensity, weight loss rate, ethylene release rate, decay rate and TSS, total sugar, VC and TA content. The results showed that 20 μmol/L MeJA fumigation inhibited the respiratory intensity, reduced the weight loss rate and ethylene release rate in the early stage, maintained the content of total sugar, VC and TA, TSS content in the late stage. Based on the concentration …

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Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu Feb 2023

Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu

Food and Machinery

In view of the current situation that most of apple sorting in China is still manually screened, a rapid detection method is proposed for apple defects based on machine vision. According to the number of defect candidate areas, the preliminary judgment of apples is completed, and the weighted correlation vector machine is used to further judge the defective apples. The effectiveness and accuracy of the proposed method are verified by experiments. The experimental results show that the recognition accuracy of this method for 1 000 test samples is 99.1%, and the detection accuracy of various defects is high.

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