Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine,
2022
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine, Tang Lin-Yue, Yuan Jiang-Feng, Lai Yu-Ting, Gong Ming-Gui, Sun Jian-Rui
Food and Machinery
Objective:This study aimed to solve the problems of time consuming and high cost in the natural aging process. Methods: Black rice wine was treated with different microwave power, time and temperature. The contents of main phenols, organic acids, and esters in black rice wine treated by microwave technology were analyzed. Results: Microwave treatment could increase the contents of total esters, protocatechuic acid, gallic acid, syringic acid, acetic acid, ethyl valerate and ethyl acetate, reduce the contents of total phenols, total acids, caffeic acid, citric acid, tartaric acid, lactic acid and ethyl lactate, and have little effect on the contents …
Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol,
2022
R&D Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming, Yunnan 650231 , China ；Xiangtan University, Department of Environment and Resources, Xiangtan, Hunan 411105 , China
Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol, Zhang Hu, Duan Yuan-Xing, Zhao Yang, Li Shi-Wei, Yang Liu
Food and Machinery
Objective: To investigate the effect of moisture content of heated cigarette on releases of aerosol main components. Methods: Three different types of heated cigarettes were used to study the effects of moisture content of cigarette sticks on the release of main aerosol components by gas chromatography. Results: ① The equilibrium humidity was a positive correlation between the moisture contents of tobacco materials and releases of total aerosol particulate matters. ② The moisture contents of heated cigarettes stored at different equilibrium humilities had a great effect on releases of glycerol and nicotine in aerosol, but a small effect on release of …
Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts,
2022
Beijing Key Laboratory of Functional Food from Plant Resources, College of Science and Nutritional Engineering, China Agricultural University, Beijing 100083 , China
Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts, Zhao Qi-Yan, Tang Ning, Zhao De-Chen, Zhang Bo-Ya, Cheng Yong-Qiang
Food and Machinery
Objective: The study aimed to develop the vegetable value of common vetch (CV) and explore the effects of salt solution on phenolic accumulation and antioxidant activity in CV sprouts.Methods: The effects of NaCl stress and supplemental CaCl2 on free and combined phenolic accumulation in CV sprouts were analysed by UPLC in comparison with pea sprouts, soybean sprouts and mung bean sprouts. The changes of key enzyme activities and gene relative expression levels of PAL, C4H and 4CL, antioxidant enzyme activities and antioxidant activities were investigated under NaCl and CaCl2 treatments.Results: The total phenolics increased from (10.63±0.40) mg GAE/g …
Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms,
2022
Guizhou Testing Technology Research and Application Center, Guiyang, Guizhou 550014 , China
Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms, Huang Yong-Qiao, Ma Kai, Wu Xin-Wen, Gao Liang, Jian Yin-Chi, Lu Yao, Yang Chang-Biao
Food and Machinery
Objective: A rapid method for determination of bongkrekic acid in Auricularia auricular was developed using QuEChERS in combination with UHPLC-MS/MS. Methods: In this study, Several important experimental parameters, including type of extraction solvent, extraction time, adsorbent type and adsorbent dosage were effectively optimized using spiked samples. The sample were shaken with methanol containing 1% ammonia water, and then carried out by the C18 adsorbent purification.Results: The bongkrekic acid was determined within 4 minutes by negative ion multiple reaction monitoring mode analysis and external standard method. The linear range was 0.05~10.00 ng/mL (r＞0.998 3). The limit of detection (LOD) was …
Determination Of 16 Kinds Of Polycyclic Aromatic Hydrocarbons In Spicy Strip By Quechers Gas Chromatography-Triple Quadrupole Mass,
2022
Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410000 , China ；Changsha County Inspection Center for Food and Drug Safety, Changsha, Hunan 410100 , China
Determination Of 16 Kinds Of Polycyclic Aromatic Hydrocarbons In Spicy Strip By Quechers Gas Chromatography-Triple Quadrupole Mass, Li Sha, Zeng Xi-Wen, Shen Rui, Li Yi-Wei, Tan Zhen
Food and Machinery
Objective:This study aimed to effectively improve the risk warning and quality and safety supervision of polycyclic aromatic hydrocarbons (PAHs) in spicy strip.Methods: The target compounds in the samples were extracted with acetonitrile and purified by QuEChERS, containing 100 mg N-propyl ethylenediamine (PSA), 100 mg octadecylsilane bonded silica gel (C18), and 1 000 mg neutral alumina adsorbent, and then were separated by DB-EUPAH column. It was detected by gas chromatography-triple quadrupole mass spectrometer with multiple reaction monitoring mode and matrix matching external standard method.Results: The 16 kinds of PAHs showed good linearity in the range of 0.005~0.500 μ …
Determination Of Four Kinds Of Illegally-Added Artificial Sweeteners In Syrups By High Performance Liquid Chromatography,
2022
Changsha Institute for Food and Drug Control, Changsha, Hunan 410008 , China
Determination Of Four Kinds Of Illegally-Added Artificial Sweeteners In Syrups By High Performance Liquid Chromatography, Zhong Fei-Fei, Lei De-Qing, Zhou Jin-Sha, Liu Bo, Wang Zi-Qing
Food and Machinery
Objective: A high performance liquid chromatography method was established for determination of four artificial sweeteners in syrups, i.e., acesulfame, saccharin sodium, aspartame and advantame.Methods:Acetonitrile was used as mobile phase A, and 0.02 mol/L ammonium dihydrogen phosphate (pH value adjusted to 5.5 by triethylamine) was used as mobile phase B. The gradient elution was conducted, with flow rate at 1.0 mL/min,and the column temperature was at 35 ℃; the detection wavelength was 214 nm, and sample size was 10 μL was loaded on the was Shiseido AQ-C18 column (4.6 mm×250 mm, 5 μm) A total of 45 …
Uncertainty Evaluation For The Determination Of Natural Capsaicin, Dihydrocapsaicin And Synthetic Capsaicin In Edible Oils And Fats By Lc-Ms/Ms,
2022
Administration for Market Regulation of Hunan Province Defective Product Recall Services Center, Changsha, Hunan 410111 , China
Uncertainty Evaluation For The Determination Of Natural Capsaicin, Dihydrocapsaicin And Synthetic Capsaicin In Edible Oils And Fats By Lc-Ms/Ms, Huang Hui, Liao Yan-Zhi
Food and Machinery
Objective: Uncertainty assessment of the content of synthetic capsaicin, natural capsaicin and dihydrocapsaicin in edible oils and fats by liquid chromatography-mass spectrometry was carried out, and the sources of uncertainty and the key factors affecting the test results were analyzed, so as to improve the accuracy of test results.Methods: To establish a mathematical model for the uncertainty of the content of synthetic capsaicin, natural capsaicin and dihydrocapsaicin in edible oils and fats, to analyze the factors that may introduce uncertainty in the detection process, and to evaluate each uncertainty component.Results: The contents of synthetic capsaicin, natural capsaicin and …
Discrimination Of Cigarette Based On Near-Infrared Spectroscopy Technology And Firefly Algorithm Optimized Support Vector Machine Parameters,
2022
Technology Center of China Tobacco Hubei Industry Limited-liability Company, Wuhan, Hubei 430040 , China
Discrimination Of Cigarette Based On Near-Infrared Spectroscopy Technology And Firefly Algorithm Optimized Support Vector Machine Parameters, Pan Xi, Li Ran, Wei Min, Wei Qing, Qiu Chang-Gui
Food and Machinery
Objective: In order to accurately and quickly discriminate cigarettes. Methods: After collecting the near-infrared spectra of different brands and reducing the interference factors through the spectral preprocessing method, the spectral pretreatment method, the population number of firefly algorithm (FA) and the number of iterations on the correct rate of cigarette classification were investigated by using firefly algorithm to optimize support vector machine (SVM) parameters. Results: The standard normal variable transformation (SNV) combined with the first derivative method (1D) was used for near-infrared spectroscopy preprocessing. Under the condition that the number of firefly populations was 20 and the number of iterations …
Exploration Of Multi Scene Task Scheduling And Simulation Experiment Platform For Materials Transportation Robots System,
2022
School of Modern Post, Beijing University of Posts and Telecommunications, Beijing 100876 , China
Exploration Of Multi Scene Task Scheduling And Simulation Experiment Platform For Materials Transportation Robots System, Weng Xun, Zhang Jing-Tian, Hu Xiao
Food and Machinery
Objective: Verify the feasibility of the task scheduling and algorithm test platform of the materials transportation robots system based on the actual order data. Methods: This paper discusses the design of simulation experiment through the independently developed platform, focusing on the typical scenarios of pharmaceutical logistics. Aiming at the logistics scenario of task allocation strategy of multi robot with task classification, the Memory Elite Population based Catastrophe Adaptive Large Neighborhood Search(MEPCALNS) algorithm is designed. Results: Compared with ALNS algorithm, the efficiency of MEPCALNS algorithm is increased by 3.16% on average. Conclusion: By means of algorithm optimization research and simulation operation …
Packaging Design Of Intangible Cultural Heritage Food Based On The Characteristics Of Traditional Folk Houses In East Fujian,
2022
Central South University of Forestry & Technology, Changsha, Hunan 410004 , China ；Institute of Traditional Villages in Central South University of Forestry & Technology, Changsha, Hunan 410004 , China
Packaging Design Of Intangible Cultural Heritage Food Based On The Characteristics Of Traditional Folk Houses In East Fujian, Qiu Zu-Zhou, Qian Hui, Liu Yun
Food and Machinery
In order to enhance the cultural value and design thinking of intangible cultural heritage food packaging design, and to spread the characteristics of traditional dwellings and traditional skills of intangible cultural heritage food, starting from cultural characteristics, architectural layout characteristics, architectural element characteristics and architectural color characteristics, Fujian Fuding white tea in east Fujian intangible cultural heritage food is the object of packaging design, which combines the characteristic elements of traditional residential buildings in eastern Fujian with the packaging design of local intangible cultural heritage food, and gives its packaging design significance and design strategy for feasibility design.
The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products,
2022
Yantai Engineering & Technology College, Yantai, Shandong 264006 , China
The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou
Food and Machinery
Objective: This study aimed to explore the changes of hygroscopicity and quality characteristics of different freeze-dried (FD) fruits and vegetables in the storage.Methods: Taking four kinds of fruits and vegetables, including potato, king oyster mushroom, apple and white radish, as the research objects, the changes of microstructure, hygroscopicity, color and texture characteristics of the four kinds of freeze-dried fruits and vegetables were observed, and the correlation analysis was conducted.Results: The results showed that the cell structure of fresh fruits and vegetables was plump and regular; The FD apple slices was observed with relatively complete tissue structure, thicker cell …
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum,
2022
College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300392 , China
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum, Li Xiao-Jie, Guo Yi, Ma Qing, Wang Pu, Xiao Ping
Food and Machinery
Objective: This study aimed to improve the technological conditions of antioxidant activity of pumpkin polysaccharide. Methods:The effects of temperature, pumpkin powder/distilled water ratio of solid to liquid, inoculation amount and shaking speed on the extraction rate of bio-transformed pumpkin polysaccharide were investigated, and the scavenging ability of pumpkin polysaccharide on DPPH free radical was studied. Results:The optimal conditions were inoculation amount 1% and solid-liquid ratio 1∶30 (g/mL), with shaking speed of 100 r/min at 37 ℃. Under the control of these conditions, the scavenging rate of DPPH free radical was (54.61±1.58)%. The in vitro antioxidant activity of the …
Preparation Of Pueraria Hypotensive Tea By Fermentation And Its Hypertensive Effect On Spontaneously Hypertensive Rats,
2022
College of Food Science and Engineering, Northwest A & F University, Xianyang, Shaanxi 712100 , China
Preparation Of Pueraria Hypotensive Tea By Fermentation And Its Hypertensive Effect On Spontaneously Hypertensive Rats, Liu Lu, Yuan Ya-Hong, Yue Tian-Li
Food and Machinery
Objective: This study aimed to obtain a novel fermented green tea with high ACE-inhibitory activity by Eurotium cristatum and to investigate its acute hypotensive effects on spontaneously hypertensive rats (SHR). Methods: The effects of pueraria addition, water content of substrate and spore suspension on ACE-inhibitory activity in vitro were investigated, and the fermentation process was optimized by orthogonal design experiment. The fermented tea solution was prepared by water extraction method, and SHR model was selected to study the hypotensive effect of fermented tea. Results: The optimal fermentation process for fermented tea was as follows: adding 2 g pueraria into 20 …
Research Progress On Storage And Processing Of Post-Harvest Daylily,
2022
College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030800 , China
Research Progress On Storage And Processing Of Post-Harvest Daylily, Chen Le, Zhao Chao-Fan, Liu Ya-Ping, Wang Yu, Zhang Li-Xin
Food and Machinery
The basic nutrition components and physiological changes after harvest of daylily were described, and the development status of daylily industry and storage and preservation technology were summarized in this review. Finally, the processing technology of daylily was prospected.
Research Progress Of Triplex Nucleic Acid In Food Safety Detection,
2022
School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114 , China ；Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, Hunan 410114 , China
Research Progress Of Triplex Nucleic Acid In Food Safety Detection, Sun Hai-Yan, Lei Yan-Li, Chen Wei-Ju, Quan Ke
Food and Machinery
This paper reviews the structure and stability of triplex nucleic acid, the progress of triplex nucleic acid-based fluorescence, electrochemical, colorimetric platform in detecting food borne hazards, and discusses the challenges and future development prospect of triplex nucleic acid-based detection technology in food safety field.
Effects Of Composite Probiotics On The Intestinal Function In Mice,
2022
Ausnutria Dairy 〔China〕 Co., Ltd., Changsha, Hunan 410127 , China ；Ausnutria Food andNutrition Research Institute, Changsha, Hunan 410299 , China ；Hunan Engineering Research Centerof Human Microecological Products, Changsha, Hunan 410017 , China
Effects Of Composite Probiotics On The Intestinal Function In Mice, Wang Jia-Qi, Kang Wen-Li, Wu Zhong-Kun, Tang Rong-Xue, Peng Can, Dai Zhi-Yong, Dong Ling, Pan Li-Na
Food and Machinery
Objective: The study aimed to explore the effects of composite probiotics on the intestinal regulation. Methods: By constructing mouse model of constipation, intestinal damage and diarrhea, the intestinal ink propulsion, defecation and intestinal mucosal tissue sections in the control group, model group and probiotics-intervention group were evaluated. The diarrhea index and intestinal mucosal damage index were also considered for comprehensively assessment. Results: Compared with the model group, the mid-and high-concentration of composite probiotics could significantly improve the defecation amount and weight, and the small intestinal ink propulsion rate. Moreover, the intestinal mucosal damage score and histopathological damage …
Effects Of Soybean Protein Isolate And Carrageenan On Gel Properties Of Myofibrillar Protein From Loach,
2022
College of Life Science, Yangtze University, Jingzhou, Hubei 434025 , China
Effects Of Soybean Protein Isolate And Carrageenan On Gel Properties Of Myofibrillar Protein From Loach, Sun Peng-Peng, Wang Wei, Li Ruo-Tong, Zhu Hong, Ren Yuan-Yuan
Food and Machinery
Objective: In this study, the effects of exogenous additives on gel properties of myofibrillar protein were explored to improve the property of surimi from fresh-water fish. Methods: The myofibrillar protein of loach was mixed with various contents of soybean protein isolate and carrageenan to prepare composite gel. Its properties were investigated by texture analyzer, color difference analyzer, scanning electron microscope and infrared spectroscopy. Results: With increased content of soybean protein isolate, the gel hardness of myofibrillar protein from loach decreased firstly and then increased; while gel springiness increased firstly and then decreased. Soybean protein isolate could enhance …
Quality Comprehensive Assessment And Measurement Amino Acid Content Of 12 Varieties Of Millet,
2022
Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Quality Comprehensive Assessment And Measurement Amino Acid Content Of 12 Varieties Of Millet, Sun Qiang, Guo Yong-Xia
Food and Machinery
Objective: This study aimed to provide the basis for selection and identification, quality breeding and comprehensive processing and utilization of millet germplasm resources. Methods: 12 varieties of millet were used to be tested objects, amino acid content of millet were measured, and then the content of 17 kinds of amino acids in millet were used to be evaluation index and applied to principal component analysis and comprehensive evaluation of quality. Millet varieties were clustered by clustering analysis. Results: The affected order of millet varieties on the content of 17 kinds of amino acids was Ser＞Lys＞Arg＞His＞Met＞Ile＞Thr＞Gly＞Pro＞Tyr＞Phe＞Asp＞Cys＞Glu＞Leu＞Val＞Ala. 2 principal …
Discrete Element Parameter Calibration Of Edible Rose Petals Based On Virtual Stacking Test,
2022
School of Mechanical and Electrical Engineering, Kunming University of Technology, Kunming, Yunan 650500 , China
Discrete Element Parameter Calibration Of Edible Rose Petals Based On Virtual Stacking Test, Gou Fu-Qiang, Yin Zhi-Hong, Niu Xian-Wei, Yan Yue-Bo
Food and Machinery
Objective: Calibration of discrete element simulation parameters of edible rose petals. Methods: The discrete element method was used to establish the discrete element model of flexible edible rose petals. The combination of physical accumulation test and virtual accumulation test, the placket Burman test, the steepest climbing test and box Behnken test were used to determine the significant factors and parameter values that affect the accumulation angle, and the significant parameters were optimized. Results: The values of the significant factors affecting the stacking angle after parameter optimization were: petal-petal collision recovery coefficient was 0.05, petal-petal rolling friction coefficient …
An Anti-Counterfeit Models Of Cigarette Packaging Paper Based On Same Color Ink By Ftir,
2022
Yunnan Tobacco Quality Supervision and Test Station, Kunming, Yunnan 650104 , China
An Anti-Counterfeit Models Of Cigarette Packaging Paper Based On Same Color Ink By Ftir, Li Hai-Yan, Cai Jie-Yun, Li Dan, Ma Hui-Yu, Xiao Yan
Food and Machinery
Objective: Established a group of models used to quickly distinguish anti-counterfeit cigarette packaging paper. Methods: The model based on the same color oil on packaging paper from 3 different brands: Yunyan, Yuxi, and Hongtashan. The Fourier Transform infrared spectroscopy (FTIR) spectrum were collected from 116 samples totally by Attenuated Total Reflection (ATR) accessary. 56 spectrum were used to build the models and 20 samples of each brand were used to verification. Spectrum were second derivative processed and spectral ranges were selected as 3 200~2 700, 1 800~1 580, and 801~720 cm1. Results: Using Mahalanobis distance discriminant method …
