Research On Extraction Of Total Flavonoids From Green Tea With Deep Eutectic,
2022
Jiangsu Food and Pharmaceutical Science College, Huaian, Jiangsu 223001 , China
Research On Extraction Of Total Flavonoids From Green Tea With Deep Eutectic, Ni Xue-Hua, Wang Heng-Peng
Food and Machinery
Objective:This study aimed to optimize the extraction technology of total flavonoids from green tea with Deep Eutectic Solvents (DESs) and evaluate the antioxidant activity of total flavonoids extracted from green tea under optimal conditions.Methods:The extraction rate of total flavonoids was taken as the index, with the ratio of liquid to solid, extraction temperature and extraction time taken as the influencing factors, and the extraction process parameters were optimized by orthogonal test, followed by the antioxidant activity evaluating with DPPH free radical inhibition.Results:The optimal extraction conditions for extraction of total flavonoids from green tea with DESs were 80% …
Auxiliary Hypoglycemic Effect Of Compound Nutritional Powder On Stz Rats,
2022
College of Bioscience and Bioengineering, Hebei Univercity of Economics and Business, Shijiazhuang,Hebei 050061 , China
Auxiliary Hypoglycemic Effect Of Compound Nutritional Powder On Stz Rats, Sheng Qing-Hai, Liu Cheng, Pan Li-Na, Wang Jia-Qi, Jia Yan-Ju
Food and Machinery
Objective:This study focuses on evaluating the auxiliary blood glucose-lowering function of self-made compound nutritional powder in type 2 diabetic rats.Methods:SD rats were intravenously injected with STZ to construct a pancreatic islet injury type 2 diabetes model. The compound nutritional powder was given by oral gavage at doses of 1.68, 3.35 and 6.70 g/kg for 30 days. Fasting blood glucose and blood glucose were measured after 30 days. Glucose tolerance index to investigate the effect of compound nutrients on STZ rats.Results:The compound nutritional powder was positive for the fasting blood glucose and glucose tolerance indexes of STZ rats; …
Study On The Effect Of Chrysanthemum Polysaccharide On Hypoglycemic In Type 2 Diabetic Rats,
2022
Department of Traditional Chinese Medicine, School of Medicine, Yanbian University, Yanji, Jilin 133000 , China
Study On The Effect Of Chrysanthemum Polysaccharide On Hypoglycemic In Type 2 Diabetic Rats, Zhao Kai-Di, Wang Qiu-Dan, Lin Chang-Qing
Food and Machinery
Objective:This study aimed to investigate the hypoglycemic effect of chrysanthemum polysaccharide on type 2 diabetes (T2DM) rats.Methods:The chrysanthemum polysaccharides were extracted by water extraction and alcohol precipitation. After feeding rats with high-fat and high-sugar feed for 6 weeks, STZ (30 mg/kg·BW) was injected intraperitoneally to establish a T2DM rat model, and records were recorded during the experiment. Rat body weight, food intake, water consumption, fasting blood glucose (FBG) was measured every two weeks, and glucose tolerance (OGTT) test was performed in the last week of the test; the insulin (INS) level was measured by Elisa method, and insulin resistance …
Extraction Of Carum Carvi L.Essential Oil By Supercritical Carbon Dioxide And Its Composition Analysis,
2022
Sanda University, Shanghai 200120 , China
Extraction Of Carum Carvi L.Essential Oil By Supercritical Carbon Dioxide And Its Composition Analysis, Pang Min, Cui Xiu-Ming
Food and Machinery
Objective:Optimized extraction technology of Carum carvi L. essential oil and analyzed the volatile components. Methods:Supercritical carbon dioxide was used to extract essential oil from Carum carvi L. seeds and the volatile components of essential oil were analyzed by gas chromatography-mass spectrometry (GC-MS). Results:The suitable extraction conditions of supercritical carbon dioxide were: temperature of extraction kettle 50 ℃, temperature of separation kettle 40 ℃, pressure of extraction kettle 30 MPa, pressure of separation kettle 0.4 MPa, flow rate of carbon dioxide 20 g/min, extraction time 90 min, extraction yield of essential oil was 4.79%. Compared with simultaneous distillation extraction …
Effects Of Simultaneous Combination Of Steam And Microwave Cooking On The Quality Of Pork Ribs,
2022
Key Laboratory of Healthy & Intelligent Kitchen System Integration, Ningbo, Zhejiang 315336 ,China ；Ningbo Fotile Kitchen Ware Co., Ltd., Ningbo, Zhejiang 315336 , China
Effects Of Simultaneous Combination Of Steam And Microwave Cooking On The Quality Of Pork Ribs, Yao Qing, Chen Yan-Ping, Sun Ying-Ying, Fang Kun, Cao Ya-Qun, Xu Yan-Shun
Food and Machinery
Objective:To determine the quality changes of the quality of pork ribs in simultaneous combination of steam and microwave cooking.Methods:The physicochemical quality, texture, fatty acids, amino acids, total thiol group, total carbonyl and vitro protein digestibility of pork ribs treated with simultaneous combination of steam and microwave were investigated.Results:The simultaneous combination of steam and microwave could significantly reduce the cooking time compared with the single steaming. And the combined cooking of microwave with 500 W and steam with 1 300 W for 13 min (MS-13) could reduce 48% of the cooking time. Compared with other groups, the pork …
The Quality Change Of Yunnan Xinping Pickles During Fermentation,
2022
Institute of Agro-products Processing, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650000 , China
The Quality Change Of Yunnan Xinping Pickles During Fermentation, Wang Xin-Rui, Li Hong, Ma Yi-Ran, Liu Bi-Qin, Shi Qiao
Food and Machinery
Objective:This study aimed to obtain the best fermentation time of Yunnan traditional Xinping pickles. Methods:Sensory evaluation and texture measurement of Xinping pickles under different fermentation times were carried out, and the pH value and nitrite content were determined according to the national standard method. Results:As the fermentation progressed, the sensory aspect of Xinping pickles gradually increased in color and texture, and stabilized after 6 days. The aroma and taste scores increased firstly, and then began to decline after 7 days. In terms of texture, the chewiness of the shank started to stabilize from Day 7. The pH value …
Effect Of Arrowhead Starch On The Quality Of Fresh Noodles,
2022
College of Food and Technologe, Sichuan Tourism University, Chengdu, Sichuan 610100 , China
Effect Of Arrowhead Starch On The Quality Of Fresh Noodles, Lu Ting-Ting, Ji De-Rong, Luo Yan-Chen, Duan Li-Li, Zheng Jing
Food and Machinery
Objective:In order to explore the effect of arrowhead starch on the quality of fresh noodles, arrowhead starch in different proportions were added into wheat core powder to make fresh noodles. Methods:The cooking characteristics, color, sensory evaluation, texture characteristics and GC-MS of fresh noodles were measured. Results:Increasing the amount of arrowhead starch can not only increase the water absorption rate, broken rate and cooking loss rate of noodles as a whole, but also increase the flavor, hardness and elasticity of noodles, and reduced the chewiness, stickiness and taste quality of noodles as well as. When the addition of arrowhead …
Research Progress On Extraction, Compound Of Walnut Oil And Its Function,
2022
College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642 , China
Research Progress On Extraction, Compound Of Walnut Oil And Its Function, Deng Xin-Yu, Huang Min-Ru, Huang Da-Rong, Du Bing, Li Pan
Food and Machinery
In this paper, walnut oil was reviewed from four aspects: nutritional components, extraction technology, efficacy and compounding. The changes of nutritional components of walnut oil with different extraction technology and compounding methods were discussed. The future research direction was prospected. The constraints of emerging technology and the new compounding method of walnut oil were the focus of walnut oil research in the future.
Peanut Kernel Integrity Detection Based On Deep Learning Convolution Neural Network,
2022
Henan Vocational College of Water Conservancy and Environment, Zhengzhou, Henan 450011 , China
Peanut Kernel Integrity Detection Based On Deep Learning Convolution Neural Network, Zhang Jun-Feng, Shang Zhan-Lei
Food and Machinery
Objective: To accurately distinguish intact peanut, nut damaged peanut and epidermis damaged peanut. Methods: A peanut seed integrity detection scheme based on deep learning convolution neural network (CNN) was proposed. The peanut seed color selection system was established and a peanut seed image database was also established; The improved density peak clustering (DPC) algorithm was used to adaptively compress the CNN convolution kernel to effectively balance the network depth and operation efficiency; The improved sparrow search algorithm was used to optimize the CNN super parameter configuration and network structure, and the CNN model suitable for peanut grain integrity detection was …
Determination Furfurals In Tea Products By Quechers-Isotope Is-Gc-Ms/Ms,
2022
Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry ofEducation, Changsha, Hunan 410081 , China ；Key Laboratory of Phytochemical R & D of HunanProvince, Changsha, Hunan 410081 , China ；Hunan Normal University, Changsha, Hunan 410081 ,China
Determination Furfurals In Tea Products By Quechers-Isotope Is-Gc-Ms/Ms, Liu Can-Di, Chen Bo, Yin Fang-Ping, Zeng Hui
Food and Machinery
Objective: This study aimed to establish a new method for detecting furfurals in tea. Methods: A gas chromatography tandem mass spectrometry (GC-MS/MS) method was established for the simultaneous determination of furfural, 5-methylfurfural, 5-hydroxymethylfurfural and 2-Acetylfuran in tea. The sample pretreatment method and GC-MS/MS method were optimized. Furfural-D4was used as the internal standard. The sample was extracted by acetonitrile, treated and purified by QuEChERS method, and determined by GC-MS/MS multi reaction monitoring (MRM). Results: The four furfurals showed good linear relationship in the mass concentration range of 1.25~200.00 μg/L, with the correlation coefficient ≥0.999 0, and the detection limit (S/N …
Research On Food Safety Supervision System In Chinese Cross-Border E-Commerce Market,
2022
Shijiazhuang Vocational Technology Institute, Shijiazhuang, Hebei 050081 , China
Research On Food Safety Supervision System In Chinese Cross-Border E-Commerce Market, Shi Gao-Yan
Food and Machinery
The development status of the cross-border E-commerce market was introduced, and the shortcomings of the current cross-border e-commerce food safety supervision system in my country was analyzed. Moreover, the direction of food safety supervision system construction in cross-border E-commerce was also discussed, from the following aspects of the food information traceability system, food safety risk early warning system, enterprise credit management system and consumer rights protection system.
Uncertainty Evaluation Of Cadmium Content In Kelp (Laminaria Japonica) By Graphite Furnace Atomic Absorption Spectrometry,
2022
Institute of Agricultural Quality Standards and Testing Technology Research, Fujian Academyof Agricultural Science, Fuzhou, Fujian 350003 , China ；Fujian Key Laboratory of Agro-productsQuality & Safety, Fuzhou, Fujian 350003 , China
Uncertainty Evaluation Of Cadmium Content In Kelp (Laminaria Japonica) By Graphite Furnace Atomic Absorption Spectrometry, Liu Lan-Ying, Lu Xin, Li Ying, Luo Tu-Yan
Food and Machinery
Objective: To improve the accuracy of the results of cadmium (Cd) content in kelp (Laminaria japonica) by graphite furnace atomic absorption spectrometry (GF-AAS). Methods: The concentration of Cd element in kelp sample was measured by using GF-AAS after microwave digestion according to the standard of GB 5009.15—2014. Combining with the experimental process and mathematical model, the possible sources of measurement uncertainty were firstly identified, then the components of each standard uncertainties were calculated, and finally each parameter of uncertainties was synthesized, and the whole uncertainty was evaluated. Results: when the value of Cd concentration in kelp was 0.202 …
The Legal Regulation Problem Of False Food Advertisement And Its Solution,
2022
School of Marxism, Hebei Petroleum University of Technolocy, Chengde, Hebei 067000 , China
The Legal Regulation Problem Of False Food Advertisement And Its Solution, Meng Jing
Food and Machinery
In this paper, the current legal system regarding deceptive food advertisements in China has been discussed deeply and issues of current legal system have been analyzed. To solve the issues, a way for optimizing food legal system was explored and several measures which assist to improve the legal system for eliminating deceptive food advertisements have been proposed. Overall, relevant legal regulations published domestically and intenationally should be sorted out and the law enforcement of government sectors should be enhanced to constrain people who want to advertise deceptive food information.
Study On Flow Channel Distribution Of Different Twin Screw Extruder Under Different Screw Contact State,
2022
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048 , China ；Plastic Beijing Municipal Key Laboratory of Health and Safety Quality Eualuation Technology, Beijing 100048 , China
Study On Flow Channel Distribution Of Different Twin Screw Extruder Under Different Screw Contact State, Shang Jia-Wei, Zhang Li-Mei, Huang Zhi-Gang, Zhang Yi-Wei, Li He
Food and Machinery
Objective: In order to explore the distribution law of the flow channel of polylactic acid in different screw contact states of the counter-rotating twin-screw extruder. Methods: Partially meshing screw and non-meshing screw were established by Solidworks software. Numerical sim-ulation was carried out using POLYFLOW fluid simulation software. The pressure field, shear rate field and viscosity field of polylactic acid fluid under different contact states of three screws were compared. Results: The counter-rotating twin-screw extruder in the partially meshed state has better pressure-building ability and dispersing and mixing ability for polylactic acid. Conclusion: The extrusion effect of polylactic acid in the …
Design And Test Of Reshaping Device For Side Sealing Of Cigarette Packet Of Yb517 Out-Of-Box Transparent Paper Packaging Machine,
2022
Jinan Cigarette Factory, China Tobacco Shandong Industrial Co., Ltd., Jinan, Shandong 250104 , China
Design And Test Of Reshaping Device For Side Sealing Of Cigarette Packet Of Yb517 Out-Of-Box Transparent Paper Packaging Machine, Zhang Cheng-Peng, Li Feng, Zhang Jia-Yi
Food and Machinery
Objective: In order to solve the quality problems of YB517 transparent packaging machine, such as folds and unevenness of transparent paper on the sides of cigarette packages, a new cigarette-packaging side seal and shaping device was developed. Methods: After the improvements, the drive shaft of cigarette receiving plate of output turntable of YB517 was used as a power source, and the heating and shaping of cigarette package side seals were achieved by designing reciprocating mechanisms, heater components, cigarette package positioning components, and optimizing push seats; and using Solidworks software to simulate and analyze the displacement, velocity and acceleration of the …
Research On The Application Of Minimalist Style In Food Packaging Design,
2022
School of Architecture and Art Design, Hebei Academy of Fine Arts, Shijiazhuang, Hebei 050700 , China
Research On The Application Of Minimalist Style In Food Packaging Design, Chao Xin-Jiao, Zhang Si-Jia
Food and Machinery
This paper introduces the origin of minimalism, discusses the advantages of minimalism style in food packaging design, and expounds the application of minimalism style in food packaging design from four aspects: Food packaging color, graphics, modeling and materials.
The Development Experience Of Front Of Package Food Warning Labeling In Chile And Its Enlightenments To China,
2022
Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081 , China
The Development Experience Of Front Of Package Food Warning Labeling In Chile And Its Enlightenments To China, Huang Ze-Ying
Food and Machinery
The study collected materials about front of package food warning labeling from the official website of the Chile Ministry of Health and literatures. Successful experience was summarized from the implementation background, algorithm, and implementation effect of warning labels, comparison of warning labels in other countries, and comparison with other front of package labels. And then several enlightenments were provided to optimize the front of package labeling in China.
Effects Of Natural Compound Preservative And Its Vacuum Synergy On The Shelf Life Of Pre-Conditioned Pork Filling Stuffing,
2022
South Central Branch of Ministry of Agriculture Nanjing Design Institute, Changsha, Hunan 410000 , China
Effects Of Natural Compound Preservative And Its Vacuum Synergy On The Shelf Life Of Pre-Conditioned Pork Filling Stuffing, Liu Ping-Yun, Wang Jun-Ru, Ding Yi-Dan, Zhang Gen-Sheng
Food and Machinery
Objective: To study the effect of food preservatives on the freshness of pre-conditioned pork filling stuffing and to solve the problem of easy spoilage and very short shelf life of pre-conditioned pork filling stuffing. Methods: The changes of physicochemical and microbiological indexes of the pre-conditioned pork filling treated with vacuum-packed co-combination preservatives during storage were determined using the total number of colonies or TBA values as evaluation criteria. Results: The optimal ratio of preservatives were as followed: 0.049% nisin, 0.207% D-isoascorbate sodium, 0.029% rosemary extract. Vacuum-packed synergistic compounding preservative treatment can effectively delay the changes of total bacterial colony, …
Effect Of Chitosan On The Waterless Preservation Of Urechis Unicinctus,
2022
China Agricultural University Yantai Institute, Yantai, Shandong 264670 , China
Effect Of Chitosan On The Waterless Preservation Of Urechis Unicinctus, Li Zhong-Kun, Li Zi-Xuan, Liu Chen-Hao, Liu Chun-E
Food and Machinery
Objective: The aim of the study was to decrease the transportation cost while reducing the nutrition loss of Urechis unicinctus. Methods: Chitosan was used for pretreatment of Urechis unicinctus, and the changes of the main nutritional and physiological indexes of the three groups i.e., control group, after waterless preservation group and recovered group, were measured. Results: The optimal concentration of chitosan was 3 g/L. After being pretreated by chitosan, the survival rate of Urechis unicinctus could reach 67% after 64 h of waterless preservation. The survival rate, muscle glycogen, water holding capacity of the experimental group were all …
Nectarine Quality Analysis Algorithm Based On Multi-Spectral Feature Partition,
2022
Jilin University of Architecture and Technology, Changchun, Jilin 130000 , China
Nectarine Quality Analysis Algorithm Based On Multi-Spectral Feature Partition, Wang Jie
Food and Machinery
Objective: In order to solve the problem that the spectral image recognition technology is susceptible to interference from similar types, resulting in deviations in the identification of the type and quality of the measured object. Methods: An independent dual-channel spectral acquisition system for visible light and near-infrared light was designed. By controlling the spectral range and spectral resolution of different characteristic regions, the rapid acquisition of absorbance at the characteristic wavelength position was achieved. The function expression form of spectral change and sample quality was established. According to the spectral distribution characteristics of the test sample, the appropriate characteristic wavelength …
