Study On The Relationship Between Polyphenolic Compoundsand The Taste Of Fruit Juice Samples,
2022
Joint Lab of Chemistry&Combustion, IATUSTC-CTAIC, Hefei, Anhui 230066 , China ；TechnologyCenter, China Tobacco Anhui Industrial Co., Ltd., Hefei, Anhui 230088 , China
Study On The Relationship Between Polyphenolic Compoundsand The Taste Of Fruit Juice Samples, He Zeng-Yang, Li Yu-Xiu, Zhu Qing-Sheng, Ning Yong, Zhu Xiao-Lan
Food and Machinery
Objective：This study aimed to clarify the content anddistribution of polyphenols in fruit juice samples and explore theintrinsic connection of the content of polyphenols with the taste offruit juice .Methods： 15 kinds of polyphenols in fruit juice sampleswere determined by HPLC-MS/MS following ethanol ultrasonic-assisted extraction.Various statistical methods such as correlation and_cluster analysis，were used to establish thesensory evaluation system of fruit juice with the values ofdifferent tastes，including sweetness，sourness，bitterness，salty， umami， astringency and piquancy.Lastly， the relationshipbetween the content of polyphenols and sensory evaluation wasexplored by correlation analysis .Results： 14 types of fruit juiceswere divided into four categories owing to …
Determination And Principal Component Analysis Of 8 Kinds Of Bioactive Substances In Different Flaxseed Vareties,
2022
Heilongjiang Bay i Agricultural University, Daqing, Heilongjiang 116331 9, China
Determination And Principal Component Analysis Of 8 Kinds Of Bioactive Substances In Different Flaxseed Vareties, Sun Qiang, Wang Li-Yan, Jing Rui-Yong, Guo Yong-Cia
Food and Machinery
Objective：Thisstudy aimedto investigatethedifference of bio activators from different flaxseed .Methods： 12flaxseed varieties were used as study objectives， 8kindsofbioac-tivat ors from different varieties of flaxseed were measured andanalyzed by principal component and clustering.Results：Theorder of effect of flaxseed varieties on bioactive substances was asfollows：lignan＞total cyanide＞flavone＞phytosterol＞total phe-no lic acid＞to cop hero nic acid＞FRAP value＞DP PH value.3 principal components were extracted by principal component a-nalysis and their accumulative contribution ratereach to82.925%.The first， second and third principal component weremainly determined by flavone and FRAP values， lignan and to co-p hero nic acid， total cyanide and total phenolic acid， respectively.12 flaxseed …
Determination Of Soybean And Wheat Allergens In Food By Dual Real-Time Fluorescence Pcr,
2022
Suzhou Products Quality Supervision and Inspection Institute, Suzhou, Jiangsu 215104 , China
Determination Of Soybean And Wheat Allergens In Food By Dual Real-Time Fluorescence Pcr, Jin Ping, Ding Hong-Liu, Zhang Min, Jin Xiao-Hong
Food and Machinery
Objective: A multiplex fluorescence PCR method based on TaqMan probe was developed for simultaneous detection of soybean and wheat allergens in food. Methods: TaqMan probe dual PCR was designed and established based on wheat gliadin gene and soybean lectin gene, respectively. The soybean Lectin gene was detected with FAM marker, and the wheat gliadin gene was detected with HEX marker. Moreover, the eukaryotic 18S rRNA was used as internal reference gene to ensure the effectiveness of the detection system. Results: The multiplex fluorescence PCR method for detection of soybean and wheat allergens created in this …
Screening Of Pde-5 Inhibitors In Health Wine By Surface-Enhanced Raman Spectroscopy,
2022
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075 , China ；Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Foodfor State Market Regulation, Wuhan, Hubei 430075 , China ；Hubei Provincial Engineering andTechnology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075 , China
Screening Of Pde-5 Inhibitors In Health Wine By Surface-Enhanced Raman Spectroscopy, Hu Jia-Yong, Zhou Tao-Hong, Yao Xiao-Fan, Yuan Min-Wen, Liu Di
Food and Machinery
Objective: A surface-enhanced Raman spectroscopy (SERS) method was developed for non-targeted screening of PDE-5 inhibitors in health wine. Methods: An appropriate SERS base of colloidal gold was prepared, and SERS analysis was conducted after the base was mixed with 78 kinds of PDE-5 inhibitors. The spectrogram screening database was established, and whether the matching degree was higher than 70% was used as the basis for judging whether the PDE-5 inhibitors were suspected to be added. Finally, the sensitivity and specificity of the method were investigated. Results: The best method of preparing PDE-5 inhibitors of SERS base was …
Thermal Analysis Of Ws Series Cooling Agent,
2022
Technology Center of Yunnan China Tobacco Industry Co., Ltd., Kunming, Yunnan 650231 , China ；Schoolof Chemistry and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650106 , China
Thermal Analysis Of Ws Series Cooling Agent, 1li Yi-Rong, Zhu Rui-Zhi, Jiang Wei, Jiang Li-Hong, Yang Ji
Food and Machinery
Objective: Evaluation of the safety of WS series cooling agents for cigarettes. Methods: In this paper, pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) and thermogravimetric (TG) methods were used to study the pyrolysis behavior and content distribution of WS series cooling agents in tobacco under different atmospheres. Results: Through TG/DSC analysis, WS-3, WS-5, and WS-23 had only one obvious thermal weight loss stage, and the maximum weight loss rates occurred at 251.8, 281.6, and 206.5 ℃, respectively. The three cooling agents all showed sharp endothermic peaks before weight loss, and a phase transition process of melting occurred. It was speculated …
Research And Enlightenment On Quality And Safety Supervision System Of Agricultural Food Products In Bangladesh,
2022
Shantou Customs Technology Center, Shantou, Guangdong 515031 , China
Research And Enlightenment On Quality And Safety Supervision System Of Agricultural Food Products In Bangladesh, Li Guan-Si, Cao Xiao-Gang, Li Ke, Li Zhi-Yong, Wei Shuang
Food and Machinery
According to the United Nations trade policy review documents, notifications, comments, special trade concerns and official authoritative research reports, the Bangladesh agricultural food product quality and safety regulatory bodies, laws and regulations, standard system, and other aspects were reviewed. It was suggested that Chinese export enterprises take advantage of local agricultural food products to actively explore the import and export trade market between China and Bangladesh. Moreover, Chinese regulators should be followed Bangladesh agricultural food products regulatory system changes, to further strengthen the assistance of agricultural and food product safety system in Bangladesh. Functional advantages can better promote bilateral trade …
Research And Development Of Fruit Quality Sorting Machine,
2022
Qingdao Agricultural University, College of Mechanical and Electrical Engineering, Qingdao, Shangdong 266109 , China
Research And Development Of Fruit Quality Sorting Machine, Wang Wen-Chao, Ge Feng-Li, Xu Wen-Kai, Zhao Lu-Hai, Li Juan
Food and Machinery
Objective: Improve the quality and efficiency of fruit quality sorting and reduce labor costs. Methods: A fruit quality sorting machine is designed to detect and sort for fruit quality. The sorting machine uses STC8A8K64S4A12 as the slave computer and uses Jetson Xavier NX as the master computer. The sorting machine can achieve the detection and sorting of the fruit on damage and sugar content by artificial intelligence. Results: The accuracy, resolution of sugar degree and speed of the sorter for detecting fruit were 99%, 0.1% and 7 200 h-1, respectively. Conclusion: The device can …
Study On Antioxidant Activities Of Proteins And Enzymatic Hydrolysates Of Eight Edible Fungi,
2022
Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai Key Laboratoryof Agricultural Genetics and Breeding, Shanghai 201403 , China ；College of Food Sciences,Shanghai Ocean University, Shanghai 201306 , China
Study On Antioxidant Activities Of Proteins And Enzymatic Hydrolysates Of Eight Edible Fungi, Wang Yao-Ran, Zhao Yan, Chen Ming-Jie, Wei Chen-Ying, Zha Lei, Li Zhi-Ping
Food and Machinery
Objective: This study focused on the antioxidant activities of eight edible fungiproteins and their hydrolysates. Methods: Eight edible fungi proteins were hydrolyzed using alkaline protease. DPPH free radical scavenging activity, ABTS free radical scavenging activity, Fe2+ chelation rate and reducing power were used to evaluate antioxidant activity. Results: SDS-PAGE electrophoretic profile results indicated that alkaline protease was efficient in hydrolyzing proteins into low molecular weight peptides and amino acid; the antioxidant activity of the alkaline proteolysis product of Volvariellavolvacea was the highest with DPPH free radical scavenging ability (5 140.45±5.35) μg Trolox/g, ABTS free radical scavenging …
Optimization Of Extraction Technology Of Total Flavonoids From Rooibos And The Antibacterial Effect On Escherichia Coli,
2022
College of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng, Henan 475000 , China
Optimization Of Extraction Technology Of Total Flavonoids From Rooibos And The Antibacterial Effect On Escherichia Coli, Wang Zhen-Wei, Zheng Li-Jing
Food and Machinery
Objective: This study aimed to evaluate the antibacterial activity of total flavonoids from rooibos (TFR) against E. coli and explore the application of rooibos resources in food field. Methods: Total flavonoids were extracted by ultrasonic-assisted ethanol extraction, and the extraction process was optimized by response surface test. The antibacterial effects of TFR on E. coli were analyzed by disk diffusion method, double dilution method, growth curve change and transmission electron microscope test. Results: The optimal extraction conditions were as follows: ethanol volume fraction 53%, solid-liquid ratio 1∶27 (g/mL), ultrasonic temperature 77 ℃, ultrasonic time 68 min. Under …
Optimization Of Purification Process Of Lutein From Marigold By Macroporous Resin,
2022
School of Food and Bioengineering, Qiqihar University, Qiqihar, Heilongjiang 161000 , China
Optimization Of Purification Process Of Lutein From Marigold By Macroporous Resin, Wu Hong-Yan, Shi Yan, Li Xiu-Xin, An Qi
Food and Machinery
Objective: This study aimed to improve the purity of lutein in Marigold. Methods: Lutein was extracted from marigold by sunflower seed oil microemulsion. The crude extract of lutein was saponified with KOH-C2H5OH solution and further purified with macroporous resin. Results: In the static test, HP-20 macroporous resin had the best adsorption and resolution effect of lutein. 80% ethanol solution was used as the adsorption solvent, and anhydrous ethanol solution was used as the analytical solvent, with the loading mass concentration of 0.01 mg/mL. The optimal static adsorption conditions were 30 ℃ temperature, adsorption …
Classification Of Peanut Quality Based On Coordinated Attention,
2022
College of Engineering and Technology, Southwest University, Chongqing 400716 , China
Classification Of Peanut Quality Based On Coordinated Attention, Wang Chun-Long, Jiang Zhong-Ming, Bao An-Hong
Food and Machinery
Objective: This study focuses on solving the problems of large memory consumption, low recognition accuracy and slow recognition speed in the classification process of peanut quality. Methods: A method for classification of peanut quality based on deep learning and image processing was proposed. The Coordinate Attention module was firstly introduced to encode the obtained feature graph into a pair of direction-aware and position-sensitive attention graph, which improved the ability to obtain the information of the region of interest of the graph. Then, Gradient Centralization was used to improve the optimizer. By modifying the parameters of the last fire …
Quality Evaluation Of Different Varieties Of Yangzhou Orchid Dry Based On Sensory ProLe Analysis, Entropy Weight Method And Grey Interconnect Degree Analysis,
2022
School of Tourism and Culinary Science Yangzhou University, Yangzhou, Jiangsu 225127 , China
Quality Evaluation Of Different Varieties Of Yangzhou Orchid Dry Based On Sensory ProLe Analysis, Entropy Weight Method And Grey Interconnect Degree Analysis, Xie Cheng-Cheng, Chen Jia-Min, Cao Zhong-Wen
Food and Machinery
Objective: The quality characteristics of Yangzhou orchid dry were evaluated scientifically. Methods: Using sensory prole analysis, 14 sensory quality descriptors such as golden, oily, fried fragrance and fragrance were obtained from the initial screening by the M value method. Using correlation analysis and principal component analysis to screen out the core evaluation indexes. The entropy weight method was to assign weight to each index. And the grey correlation degree method was to comprehensively evaluate the quality. Results: The results showed that the strong bite, supple, fragrant and oily were identified as the key sensory descriptors for the …
Research Progress Of The Application Of Clarification And Decolorization Techniques In Sugarcane Sugar Production,
2022
Nanning University, Nanning, Guangxi 530005 , China
Research Progress Of The Application Of Clarification And Decolorization Techniques In Sugarcane Sugar Production, Xu Wen-Ting, Wang Zhou, Chen Guo-Qiang, Zhou Zhi-Ruo, Chen Wen-Jie
Food and Machinery
In this review, the clarification and decolorization of sugar solution in the process of sugar production was summarized. The research status of various clarification and decolorization techniques such as adsorption, oxidation and filtration in sugar production process and the deficiencies of existing methods in production and popularization, were compared and introduced. In addition, the research direction of the clarification technology in sugar industry was discussed.
Effects Of Silver Carp Drying Process On Quality And Content Of Advanced Glycation End Products,
2022
College of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114 , China
Effects Of Silver Carp Drying Process On Quality And Content Of Advanced Glycation End Products, Luan Ao-Nan, Wang Chuan-Yang, Kevin Li, Yu Jian, Wang Fa-Xiang, Liu Yong-Le, Li Xiang-Hong, Li Yan
Food and Machinery
Objective:The effect of dried silver carp process on quality and safety was studied. Methods: Taking the fresh silver carp as the raw material, the curing concentration (NaCl), curing temperature, curing time, drying temperature and drying time as investigating factors, investigated the effects of different processing conditions on the rehydration rate, color, texture and AGEs formation. Results: The concentration of curing salt and drying temperature had significant effects on the sensory evaluation of dried fish products (P＜0.05), and the optimal processing conditions obtained were curing concentration of 9%, curing temperature of 4 ℃, curing time of 3 h, …
Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System,
2022
College of Electronic Engineering & Artificial Intelligence, South China Agricultural University, Guangzhou, Guangdong 510642 , China
Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System, Ma Cheng-Tong, Li Jun-Wen, Ouyang Hao-Yi, Tan Sui-Yan, Yang Chu-Ping
Food and Machinery
Objective:In order to realize the detection of apple sugar content, a nondestructive prediction method of apple sugar content based on the characteristic gray series of apple reflection spot image in darkroom system is proposed. Methods:The laser with the peak wavelength of 670 nm absorbed by the apple was used as the illumination light source, which was incident from the illumination port of the integrating sphere. The apple sample was placed at the sample port of the integrating sphere, and the reflection spot of the apple sample was obtained at the measuring port of the integrating sphere. Through the …
Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage,
2022
College of Food Science and Biotechnology, Tianjin Agricultural University, Tianjin 300384 , China
Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage, Chen Yuan-Yuan, Ma Kai-Hua, Zhang Yu-Ting, Zheng Xiang-Fei, Zhang Xin-Yu, Ma Li-Zhen
Food and Machinery
Objective: To study the effects of microbial nitrification inhibitors on the formation and changes of flavors in air-dried sausages. Methods: Four groups of air-dried sausages were designed: MNI group: 0.05% of microbial nitrosation inhibitors (MNI) were added; MNIP group: 0.05% MNI and an inoculation of PRO-MIX5 commercial starter (Staphylococcus xylose, Lactobacillus sake,and L. plantarum) were added; FBFAP group: fermented beef flavorings and compound antioxidants were added, and the sausages were inoculated with the PRO-MIX5 commercial starter; and CK group: blank control (CK). The flavor of air-dried sausages was determined by an amino acid analyzer, Heracles iii ultra-fast gas phase electronic …
Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms,
2022
College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054 , China ；Xinjiang Institute of Analysis and Testing, Urumqi, Xinjiang 830011 , China
Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms, Chen Guo-Tong, Lu Yun, Ma Ping-Ping, Fan Rui, Yang Zhong, Cao Xu
Food and Machinery
Objective: This study aimed to obtain the volatile components of different parts of lavender in natural condition and provide theoretical basis for quality evaluation and rational utilization of lavender varieties.Methods: Orthogonal experiment was used to optimize the headspace solid phase microextraction (HS-SPME-GC-MS) conditions, and the volatile components of the root, stem, leaf and flower of the representative lavender species France blue were analyzed under the optimal conditions.Results: The optimal conditions of HS-SPME were extraction time 60 min, equilibrium time 20 min and desorption time 5 min. Under the control of these conditions, a total of 36 chemical components …
Rapid Determination Of Matrine And Oxymatrine In Honey,
2022
Hunan Provincial Institute of Product and Goods Quality Inspection, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410117 , China
Rapid Determination Of Matrine And Oxymatrine In Honey, Jing Hui-Hua, Xiang Jun, Jiang Deng-Hui, Feng Yan-Ying, Wang Yun-Hao, Wang Liang-Liang
Food and Machinery
Objective:This study aimed to establish a new method for the determination of matrine and oxymatrine in honey by UPLC-MS/MS. Methods: The honey was dissolved in water, and the liquid-liquid extraction pretreatment technology was adopted. The extraction was achieved using ammonia-acetonitrile, with the addition of sodium sulfate to induce a salting out effect. Chromatographic separation was achieved on Inspire HILIC column in the mobile phase composition of acetonitrile and 0.1% formic acid5 mmol/L ammonium acetate buffer. Mass Spectrometry was carried out under the multiple reaction monitoring (MRM) mode with positive electrospray ionization (ESI+) and external standard method for quantitative analysis. …
Beef Quality Recognition Based On Classification Feature Extraction And Deep Learning,
2022
Changzhi College, Changzhi, Shanxi 046011 , China
Beef Quality Recognition Based On Classification Feature Extraction And Deep Learning, Wang Xin-Long, Li Xiang
Food and Machinery
Objective: To reduce the influence of data difference and spectral feature redundancy on beef quality recognition. Methods: A beef quality recognition method based on classification feature extraction and deep learning was proposed. The spectral feature extraction method of classified beef was designed, and the improved DPeak algorithm was used for adaptive clustering analysis of spectral data to realize the difference analysis of data. The objective function of beef spectral feature extraction was defined and solved by discrete lion swarm algorithm. The optimal spectral feature subset of each classification was extracted to minimize feature redundancy. The improved lion swarm algorithm (ILSO) …
Principles Of Food Safety Regulation Transformation Under The Pursuit Of Co-Governance,
2022
Nanjing Audit University School of Law, Nanjing, Jiangsu 211800 , China
Principles Of Food Safety Regulation Transformation Under The Pursuit Of Co-Governance, Liang Jin-Gang, Qin Guo-Rong
Food and Machinery
Objective: This study aimend to explore the appropriate transformation path of regulatory power for food safety "social co-governance". Methods: The state of "social co-governance" mode of food safety was analyzed and the possible secondary risks of "decentralization" of regulatory authority were analyzed, so as to explain the rational transformation of regulatory authority. Results: The blind decentralization of regulatory power will cause the policy risks of governance loss and disorder, leading to greater food safety accidents. Conclusion: It is necessary to make clear the transformation of "strict supervision to refinement and flexibility", adhere to the transformation of "basic rights of social …
