Salting-Out Assisted Liquid-Liquid Extraction Coupled With Hplc-Ms/Ms For Determination Of 13 Kinds Of Bisphenols And Alkyl Phenol Compounds In Liquid Dairy Products,
2022
Zhejiang Institute of Product Quality and Safety Science, Hangzhou, Zhejiang 310018 , China
Salting-Out Assisted Liquid-Liquid Extraction Coupled With Hplc-Ms/Ms For Determination Of 13 Kinds Of Bisphenols And Alkyl Phenol Compounds In Liquid Dairy Products, Jiang Kan, Zhang Hui, Cao Hui, Wang Jin, Zhou Xue-Jun, Li Xiao-Yan
Food and Machinery
Objective: An analytical method was established for determination of 13 kinds of bisphenols and alkylphenol compounds in liquid dairy products by salting-out-assisted liquid-liquid extraction coupled with HPLC-MS/MS. Methods: The salting-out-assisted liquid-liquid extraction pre-treatment method was adopted, and the detection was performed in the mode of negative ion source multiple reaction monitoring (MRM) by triple quadrupole mass spectrometry, and quantitative analysis was performed by matrix external standard method. Besides, the effect of extraction solvent type, selection and the usage of salting-out agents on the recoveries were studied and the performance of the method was evaluated. Results: The liquid …
Rapid Screening Of 57 Illegally Added Drugs For Uric Acid Lowering Medicinal And Edible Food By Modified Quechers Technology,
2022
Guangdong Testing Institute of Product Quality Supervision, Foshan, Guangdong 528300 , China
Rapid Screening Of 57 Illegally Added Drugs For Uric Acid Lowering Medicinal And Edible Food By Modified Quechers Technology, Qi Yan, Xu Qing-Peng, Li Cong, Deng Xing-Fei, Li Jin-Qing
Food and Machinery
Objective: This study aimed to establish a rapid screening method for 57 drugs illegally added to medicinal and edible food. Methods: Extracted samples were purified by QuEhERS pretreatment technology, and 57 kinds of illegal addition of drugs were separated by Waters BEH C18 column. Acetonitrile-water was used as a mobile phase for gradient elution. Mass spectrometry electrospray and multiple reaction monitoring (MRM) were used for detection and analysis. Results: The established method had good linearity, and the correlation coefficients (R2) of 57 kinds of illegal addition of drugs were all greater than 0.99. The limits of detection …
Determination Of Eight Kinds Of Insecticides In Dairy Products By Dispersed Solid Phase Extraction-Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry,
2022
Guangzhou Inspection Testing and Certification Group Co., Ltd., Guangzhou, Guangdong 511447 , China
Determination Of Eight Kinds Of Insecticides In Dairy Products By Dispersed Solid Phase Extraction-Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry, Yan Wan-Ying, He Min-Heng, Wen Heng, Liu Zhi-Peng, Yu Zhi-Cong
Food and Machinery
Objective: To detect eight kinds of insecticides in dairy products (pure milk, fermented milk, milk powder) rapidly. Methods: A high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method based on dispersive solid phase extraction pre-treatment technology was established. The samples were extracted with acetonitrile-acetone solution (Vacetonitrile∶Vacetone=80∶20) in ultrasonic way, and the extraction solution was purified by Florisil, primary secondary amine and anhydrous MgSO4.After purification, the samples were analyzed by HPLC-MS/MS qualitatively and quantitatively in multi reaction monitoring (MRM) mode. Results: The correlation coefficient (r) of fenamiphos, imidacloprid, spinosad, dinotefuran, emamectin benzoate, methomyl, …
Preparation Of Matrix Reference Material Of Amino- Mebendazole In Eel Muscle Powder,
2022
Review Technology Center of Fujian Industrial Product Production License, Fuzhou, Fujian 350003 , China
Preparation Of Matrix Reference Material Of Amino- Mebendazole In Eel Muscle Powder, Luo Chun-Lian
Food and Machinery
Objective: A method for the preparation and determination of amino-mebendazole matrix reference material in eel muscle powder was established. Methods: A positive sample was obtained by culturing eels with mebendazole and was prepared into amino-mebendazole matrix reference material, which went through freeze-drying, vacuum packaging, and radiation sterilization in turn. And its homogeneity, stability, cooperative setting value, and uncertainty were examined. Results: This matrix reference material has good uniformity and can adapt to low temperatures, normal temperatures, long-distance transportation, and other environments. It can be stored for more than 12 months under -18 ℃. The characteristic value of …
Identification Of The Age Of Baijiu Based On Two-Dimensional Correlation Near Infrared Spectroscopy,
2022
College of Agricultural Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801 , China
Identification Of The Age Of Baijiu Based On Two-Dimensional Correlation Near Infrared Spectroscopy, Zhou Tao, Zhang Zhi-Yong, Han Ning, Gao Wei, Jia Li-Yan
Food and Machinery
Objective: To avoid young liquor as old liquor and realize the discrimination of Baijiu age. Methods: The near infrared transmission spectra of Baijiu samples were collected by near infrared spectrometer, and the synchronous and asynchronous two-dimensional correlation spectra of Baijiu samples were constructed with the wine age as the external disturbance. On this basis, the autocorrelation spectrum of each sample was extracted, and the age discrimination model of Baijiu was established by combining Markov distance method. Results: The wave band from 1400 nm to 1800 nm contained the effective information about the changes of Baijiu samples on …
Quality And Safety Analysis And Supervisory Suggestion Of Sampling Inspection Of Vegetables Sold In Shanghai From 2019 To 2021,
2022
Institute for Agri-Food Standards and Testing Technology, Shanghai Academy ofAgricultural Sciences, Shanghai 201403 , China ；Shanghai Co-Elite Agri-food TestingTechnology Service Co., Ltd., Shanghai 201403 , China
Quality And Safety Analysis And Supervisory Suggestion Of Sampling Inspection Of Vegetables Sold In Shanghai From 2019 To 2021, Jin Qi-Qi, Chen Lei, Zhou Jing, Bai Bing
Food and Machinery
Objective: Understand the quality and safety of vegetables sold in Shanghai, and provide data and reference for future supervision. Methods: Public information on the supervision and sampling of vegetables by the Shanghai Market Supervision and Administration from 2019 to 2021 was collected, and the information was analyzed and summarized. Results: The statistical results of 2019—2021 show that the unqualified rate of vegetable products were 1.36%, 0.78% and 2.88%, respectively. Bulb vegetables, beans and leafy vegetables were found to be unqualified products within three years, and the unqualified rate of bulb vegetables was the highest. The main substandard …
Research On The Innovation Mechanism Of Online Food Safety Supervision From The Perspective Of Holistic Governance,
2022
Nanchong Vocational and Technical College, Nanchong, Sichuan 637000 , China
Research On The Innovation Mechanism Of Online Food Safety Supervision From The Perspective Of Holistic Governance, Li Xi
Food and Machinery
Holistic governance theory is a new type of public management strategy, which helps to provide citizens with a seamless and non-separated holistic service governance scheme, and provides new ideas for food safety supervision. Based on the theory of holistic governance, this article proposes three levels of online food safety supervision, from the perspective of the integrity of supervision implementation to reconstruct the execution network, the integrity of the supervision body to reconfigure of the participating network, the integrity of the supervision accountability to reshape of the power and responsibility system.
Intelligent Control Method Of End Effector Of Food Sorting Robot Based On Improved Inversion Control,
2022
Guangxi Electromechanical Vocational and Technical College, Nanning, Guangxi 530007 , China
Intelligent Control Method Of End Effector Of Food Sorting Robot Based On Improved Inversion Control, Wei Shu-Cheng, Mo Guo-Zhi
Food and Machinery
Objective: Solve the problems of poor positioning accuracy and low efficiency of end effectors in the sorting process of parallel food sorting robots. Methods: An intelligent control of the end-effector of a parallel food sorting robot combining fuzzy system, fuzzy neural network and inverse control algorithm was proposed. The modeling information was approximated by the fuzzy system, the unmodeled information was approximated and predicted by the fuzzy neural network, and the inversion control completed the control output. Finally, the experimental verification is carried out. Results: Compared with the traditional control method, the proposed control method had good …
Localization And Counting Of String Tomatoes Based On Improved Tiny-Yolov5l Algorithm,
2022
Intelligent Equipment Research Center, Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097 , China ；Key Laboratory for Quality Testing of Software and Hardware Products onAgricultural Information, Ministry of Agriculture and Rural Affairs, Beijing 100097 , China
Localization And Counting Of String Tomatoes Based On Improved Tiny-Yolov5l Algorithm, Zhao Jiu-Xiao, Zhang Xin, Shi Kai-Li, Li Jing-Jing, Li Zuo-Lin
Food and Machinery
Objective: This study is to improve the sorting efficiency of string tomatoes, and solve its false detection and false detection. Methods: First, collect the image data set of string tomatoes, expand the data and improve the generalization performance of the model through data enhancement, and 3×3 convolution is replaced by improved SVM-MHSA layer. By replacing softmax classification function in MHSA with SVM classification function which is more suitable for string tomatoes, the detection accuracy of string tomatoes is enhanced. Secondly, the remaining 3×3 convolution is replaced by deep separable convolution to reduce the number of parameters and improve …
An Online Visual Detection And Identification Method For The Defective Of Qinqinchang,
2022
College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222 , China
An Online Visual Detection And Identification Method For The Defective Of Qinqinchang, Dang Guo-Hui, Wang Yong-Qiang, Zhou Cong-Ling
Food and Machinery
Objective: This study aimed to study the automatic detection method of common appearance defects in the production process of Qinqinchang. Methods: CMOS camera was used to obtain the image information of the product online, and image processing technology was used to extract the appearance defect features of the product and analyze the types of defects. Results: The accuracy rate of the online detection method for the common appearance defects of kissing intestines was 97.2%. Conclusion: The method is simple and has broad application prospect.
Application Of Ceramic Container In Tea Packaging And Development Strategy Of Contemporary Design,
2022
Foshan University, Foshan, Guangdong 528000 , China
Application Of Ceramic Container In Tea Packaging And Development Strategy Of Contemporary Design, Li Ling-Ling
Food and Machinery
Clarify the value of ceramic containers used in tea packaging from the development process, study the impact of contemporary consumer culture, industrialization and globalization on ceramic tea packaging containers, discuss the orientation and development strategy of contemporary ceramic containers design applied to tea packaging.
Food Packaging Design Based On Network Public Welfare Communication,
2022
Zhaoqing University, Zhaoqing, Guangdong 526061 , China
Food Packaging Design Based On Network Public Welfare Communication, Huang Qiu-Chen
Food and Machinery
On the basis of analyzing the development of the concept of public welfare packaging, taking the commercial practices of public welfare packaging as examples, the advantages, current situation and problems of food packaging participating in public welfare were analyzed. The design idea of food packaging based on network public welfare communication was put forward. Food public welfare packaging should follow the design principles of commonweal, simplicity, interactivity and communication, and promote the continuous innovation by integrating new media, new materials, new technologies and new contexts, in order to improve public welfare packaging to better serve the enterprise's public welfare communication, …
Research On The Identification Of Mildew Maize Kernels Using Spectral Variables And Color Features Of Hyperspectral Images,
2022
Huai'an Vocational Education and Teaching Research Office, Huai'an, Jiangsu 223001 , China
Research On The Identification Of Mildew Maize Kernels Using Spectral Variables And Color Features Of Hyperspectral Images, Li Wei, Zhao Xue-Qing, Liu Qiang
Food and Machinery
Objective: To identify mildew maize kernels accurately. Methods: A novel method to identify mildew maize kernels using spectral variables and color characteristics of hyperspectral images. Firstly, image segmentation, spectral variables and color features extraction were carried out on maize kernel images. Then, color features of maize kernel images were utilized to generate color histograms. Additionally, spectral variables and color histogram features were combined into a feature set. Finally, the distance functions were used to analyze the features in this feature set to identify mildew maize kernels. Results: For the proposed method, the maximum average identification deviation and …
Online Detection And Grading System For Citrus Full-Surface Color,
2022
College of Mechanical and Electrical Engineering, Central South University of Forestry andTechnology, Changsha, Hunan 410004 , China
Online Detection And Grading System For Citrus Full-Surface Color, Li Lang, Wen Tao, Dai Xing-Yong, Wang Zhi-Yu
Food and Machinery
Objective: This study aimed to realize the fast and accurate sorting of citrus color. Methods: An online color detection and grading system of citrus based on machine vision was designed in this study. The system is composed of feeding unit, chain conveying mechanism, image acquisition system and fruit dividing unit. The industrial camera which was combined with the rolling mechanism was used to uniformly capture 50~60 frames of images for obtaining the complete surface information of citrus. The non-destructive testing software preprocessed each frame of images acquired in real time to obtain the two-dimensional coloring ratio, which is …
Water Content Detection Of Camellia Oleifera Seeds Based On Temperature Correction And Visible/Near Infrared Spectroscopy,
2022
College of Mechanical and Electrical Engineering, Central South University ofForestry and Technology, Changsha, Hunan 410004 , China
Water Content Detection Of Camellia Oleifera Seeds Based On Temperature Correction And Visible/Near Infrared Spectroscopy, Wang Zhi-Qiang, Li Da-Peng, Liu Qiang, Liao Shu-Huai, Yi Zong-Pei
Food and Machinery
Objective: In order to solve the problem that temperature change during drying can detect the moisture content of Camellia oleifera seeds by visible/near infrared spectroscopy, a temperature modified Camellia oleifera seed moisture content detection model was proposed. Methods: Drying experiments were carried out at different temperatures (50,60,70 ℃) to collect spectral data. By acquiring the spectral data collected at different temperatures, the reasons why the temperature affected the spectrum were analyzed. Then, by comparing the three spectral preprocessing methods, using the Competitive Adaptive Reweighting(CARS)and Partial Least Squares Regression (PLSR) were used to establish the benchmark PLSR model at …
Optimization Of Preparation Of Conjugated Linoleic Acid By Alkali Isomerization Of Peanut Oil,
2022
Hunan Provincial Key Laboratory of Research, Resource Mining and High-valued Utilization onEdible and Medicinal Plant, Jishou University, Jishou, Hunan 416000 , China
Optimization Of Preparation Of Conjugated Linoleic Acid By Alkali Isomerization Of Peanut Oil, Shen Qiu-Yun, Peng Qing-Jing
Food and Machinery
Objective: To obtain a promising production technique of conjugated linoleic acid (CLA). Methods: The alkali isomerization was used to prepare CLA from peanut oil. The relative content of linoleic acid in peanut oil was determined, and the effects of reaction time, reaction temperature, ratio of alcohol to oil and KOH dosage on the conversion of CLA were investigated. The preparation conditions were optimized by Box-Behnken test. Results: The peanut oil was rich in linoleic acid with a relative content of 27.85%. Therefore, peanut oil was a good raw material for the preparation of CLA. For the conversion …
Isolation, Purification And Identification Of Ace Inhibitory Peptide From Paramisgurnus Dabryanus Protein,
2022
College of Technology, Agricultural University of Hebei, Cangzhou, Hebei 061000 , China
Isolation, Purification And Identification Of Ace Inhibitory Peptide From Paramisgurnus Dabryanus Protein, Dong Jing-Qi, He Ze-He, Tian Gui-Fang, Shao Juan-Juan, Wu Xiao-He
Food and Machinery
Objective: This study aimed to develop ACE inhibitory peptide of Paramisgurnus dabryanus.Methods: Ultrafiltration, Sephadex G-15 and RP-HPLC were used to isolate and purify ACE inhibitory peptides from the proteolysis products of P.dabryanus,and their structures were analyzed by HPLC-MS/MS. The inhibitory mode of purified ACE inhibitory peptide was analyzed by inhibition kinetics. Results: The amino acid sequence of ACE inhibitory peptide was Glu-Gly-HIS, the relative molecular weight was 341.2 Da, the IC 50 value was (17.89±3.28)μg/mL, and the purification ratio was 27.47. Conclusion: The inhibitory peptide of P. dabryanus is a competitive ACE inhibitory peptide.
Investigation And Research On The Demand And Attitude Of Different Peple To Gastrointestinal Healthy Food,
2022
Research Institute, Ausnutria Dairy 〔China〕 Co., Ltd.,Changsha, Hunan 410203 , China
Investigation And Research On The Demand And Attitude Of Different Peple To Gastrointestinal Healthy Food, Cui Wei, Liu Shuo, Zhu Di-Fan, Zhi Hai-Mei, Zhao A-Dan, Dai Zhi-Yong
Food and Machinery
Objective: This study amied to investigated the perspective of gastrointestinal (GI) health among consumers of all ages, and their demands on related dietary supplements. Methods: Questionnaires were randomly distributed through the Internet, and 148 consumers completed the questionnaire, including infants, children and teenagers (1~18 years old), adults (19~55 years old), and older adults (over 55 years old). The corresponding results were obtained from the data analyzed by SPSS. Results: Common GI issues affecting consumers include constipation, abdominal bloating and pain as well as diarrhea. Nearly half of consumers are very concerned about GI health. Unhealthy lifestyle habits …
The Development Process, Implementation Characteristics And Experience Enlightenment Of Infant Food Education In Japan,
2022
The College of Education Science, Xinjiang Normal University, Urumqi, Xinjiang 830054 , China ；The College of Education Science, Yancheng Teacher University, Yancheng, Jiangsu 224007 , China
The Development Process, Implementation Characteristics And Experience Enlightenment Of Infant Food Education In Japan, Shi Gui-Hong, Feng Jiang-Ying
Food and Machinery
This paper systematically combs the development process and implementation characteristics of Japanese infants food education, and puts forward that China can establish a scientific and perfect Chinese infants food education system on the basis of learning from the mature experience of Japanese infants food education, starting from the creation of infants characteristic food education courses, strengthening the training of food education teachers, building a food education coordination mechanism, inheriting excellent food culture and improving food education laws and regulations.
Multi-Objective And Multi-Subject Role Division In Japan’S Food Education Policy,
2022
Facuity of Quality Management and Inspection Quarantine, Yibin University, Yibin, Sichuan 644000 ,China
Multi-Objective And Multi-Subject Role Division In Japan’S Food Education Policy, Su Yu-Zhen, Xiao Han-Jie, Zhu Qiang, Hu Yang-Jia, Zhou Xi-Yan
Food and Machinery
Based on literature analysis, this paper reviews the evolution path of Japan's food education policy and analyzes the content and purpose of the basic law of food education. Based on the perspectives of multiple objectives and multi-subject role division, the author summarizes the experience of Japan's food education policy promotion. Their experiences mainly include: clear division of labor between the central and local governments, central unification and respect for local autonomy. Food breeding roots from a young age; Diversified feeding action plans; Planning food education courses with characteristics.
