Study On Various Factors Compression Test Of Xinfeng Walnut,
2020
College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100 , China ；Institute of Agricultural Mechanization Xinjiang Academy of Agricultural Science,Urumqi, Xinjiang 830091 , China
Study On Various Factors Compression Test Of Xinfeng Walnut, Liu Kui, Guo Wen-Chuan, Zhu Zhan-Jiang
Food and Machinery
The effects of moisture content, loading speed and loading direction on the compression characteristics of walnut were studied in this paper. Xinfeng walnut was compressed under different conditions, and a finite element model was established for walnut extrusion cracking. The largest cracking force was found when the walnut shell was compressed in the direction of thickness, and the largest cracking diffusion area also appeared in this direction, which resulted in removing the whole kernel more easily. Finally, through two kinds of walnut cracking tests of compressing and impact, it was shown that multiple and multi-range impact loading could make the …
Study On The Mechanical Properties Of Electro-Spun Fiber Film Of Konjac Glucomannan/Combined With Nano-Fe3O4,
2020
Department of Food and Biology Engineering, Zhangzhou Profession and Technology Institute,Zhangzhou, Fujian 363000 , China ；The Applied Technical Engineering Center of Further Processing andSafety of Agricultural Products, Higher Education Institutions i
Study On The Mechanical Properties Of Electro-Spun Fiber Film Of Konjac Glucomannan/Combined With Nano-Fe3O4, Xie Jian-Hua, Xie Bing-Qing, Zhang Gui-Yun, Zheng Jun-Feng, Gao Zhi-Qiang, Pang Jie
Food and Machinery
In order to improve the mechanical property, Konjac glucomannan (KGM) was mixed with nano-Fe3O4 to prepare the composite membrane by electrospinning technology. Results indicate that the content of raw materials, including nano-Fe3O4, KGM, glycerin, and Na2CO3, had considerable impact on the mechanical property of composite membrane. When the ratio of nano-Fe3O4, KGM, glycerin, and Na2CO3 in the composite membrane was 1.0%, 1.2%, 0.1% and 0.1% respectively, the tensile strength was 28.35 MPa and the elongation at break was 6.42%.
Antioxidant And Antibacterial Activity Of Polyphenols From Lyophyllum Cinoraseens Konr & Maubl,
2020
Wenzhou Institute of Agricultural Sciences, Wenzhou, Zhejiang 325000 , China
Antioxidant And Antibacterial Activity Of Polyphenols From Lyophyllum Cinoraseens Konr & Maubl, Li Yan-Po, Huang Yan, Cheng Lu-Jie, Sun Yi-Ting
Food and Machinery
In order to investigate the antioxidation and antibacterial effect of polyphenols from Lyophyllum Cinoraseens Konr & Maubl, crude polyphenols after ultrasonic-assisted ethanol extraction purified polyphenols with macroporous resin were used as raw materials to study the scavenging effect for ·OH, O · and DPPH· and antibacterial effect by the filter paper disc method. The results showed that crude polyphenols and purified polyphenols from Lyophyllum Cinoraseens Konr & Maubl both exhibit the scavenging effect for ·OH, O · and DPPH·, and there presented certain dose-effect relationship between scavenging ability and the concentration of polyphenols. Crude polyphenols and purified polyphenols showed …
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb,
2020
College of Technology and Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050 , China
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang
Food and Machinery
An orthogonal test was utilized to optimize the ultrasonic-assisted extraction process of polysaccharides from Lilium davidii var waste bulb, and the stability of the polysaccharides was studied. The results showed that the optimum extraction conditions for ultrasonic-assisted extraction process were as followed: the ratio solid to liquid of 1:20 (g/mL), ultrasonic time of 60 min, ultrasonic power 250 W, and ultrasonic temperature 60 ℃. Under the conditions, the extracting rate of polysaccharides from Lilium davidii var was 18.44%. The anti-oxidization stability of polysaccharide extracts was poor, whicht was easy to be oxidized by H2O2, but has …
Research On The Development And Digestibility Of Potato Compound Rice Flour For The Middle-Aged And Elderly,
2020
Anhui Science and Technology University, Chuzhou, Anhui 233100 , China
Research On The Development And Digestibility Of Potato Compound Rice Flour For The Middle-Aged And Elderly, Liu Wan-Jiao, Liu Yong, Zhang Wei-Hua, Yang Jian-Ting
Food and Machinery
The best proportion of potato and rice was obtained by different proportion ratio. Thereafter, different amounts of soybean, mung bean and millet were added to determine their viscosity value, and the addition amount of each single factor was screened by combining with sensory score. The optimal formula of potato compound rice flour was determined by mixing design, and in vitro simulated digestion experiments were carried out on the potato compound rice flour prepared by combining the physiological characteristics of middle-aged and elderly. The results showed that the best formula of potato with rice flour consisted of 12.31% soybean, 20.84% mung …
Study On Prediction Model For Draw Resistance And Ventilation Of Cigarette Based On Multivariate Adaptive Regression Splines,
2020
Qujing Cigarette Factory, Hongyun Honghe Tobacco ﹝Group﹞ Co., Ltd., Qujing, Yunnan 655001 , China
Study On Prediction Model For Draw Resistance And Ventilation Of Cigarette Based On Multivariate Adaptive Regression Splines, He Xiao-Qiang, Li Hong-Shen, Xiang Hu, Wang Long, Zhang Yun-Fei, Zou Yu-Sheng, Zhao Rong, Liu Ge-Yi, Yang Tao, Li Shao-Chen
Food and Machinery
Draw resistance and ventilation of cigarette are important indexes that affect the suction feeling, smoke and sensory quality of cigarette. In order to achieve the early prediction of draw resistance and ventilation of cigarette, the relevant factors were identified by analyzing the principle of draw resistance and ventilation, combined with a large number of data with different specifications and material characteristics. The prediction model of draw resistance and ventilation of cigarette was established by using multivariate adaptive regression splines (MARS) method. After verification, the normalized mean squared error (NMSE) of draw resistance prediction model was 0.276, and the average absolute …
Research Progress Of Improved Enzyme-Linked Immunosorbent Assay Based On Nanomaterials,
2020
Hunan Provincial Key Laboratory of Food Science and Biotechnology, Changsha, Hunan 410128 , China ；College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128 , China
Research Progress Of Improved Enzyme-Linked Immunosorbent Assay Based On Nanomaterials, Zhang Guang-Yin, Lu Dai, Deng Fang-Ming, Zhao Qian, Shi Xing-Bo
Food and Machinery
The recent development of improved ELISA was summarized. Nanomaterials as a substitute for traditional biological enzymes and signal substrates for colorimetry, fluorescence, electrochemistry, photothermal effects, surface enhanced Raman scattering, and chemiluminescence were also reviewed. Finally, the development direction and challenges of the improved ELISA were analyzed, and its application prospect was prospected.
Detection Of Fish Fillet Substitution And Mislabeling Using Multimode Hyperspectral Imaging Techniques,
2020
USDA/ARS Environmental Microbial and Food Safety Laboratory
Detection Of Fish Fillet Substitution And Mislabeling Using Multimode Hyperspectral Imaging Techniques, Jianwei Qin, Fartash Vasefi, Rosalee S. Hellberg, Alireza Akhbardeh, Rachel B. Isaacs, Ayse Gamze Yilmaz, Chansong Hwang, Insuck Baek, Walter F. Schmidt, Moon S. Kim
Food Science Faculty Articles and Research
Substitution of high-priced fish species with inexpensive alternatives and mislabeling frozen-thawed fish fillets as fresh are two important fraudulent practices of concern in the seafood industry. This study aimed to develop multimode hyperspectral imaging techniques to detect substitution and mislabeling of fish fillets. Line-scan hyperspectral images were acquired from fish fillets in four modes, including reflectance in visible and near-infrared (VNIR) region, fluorescence by 365 nm UV excitation, reflectance in short-wave infrared (SWIR) region, and Raman by 785 nm laser excitation. Fish fillets of six species (i.e., red snapper, vermilion snapper, Malabar snapper, summer flounder, white bass, and tilapia) were …
Microplate Immunocapture Coupled With The 3m Molecular Detection System And Selective Plating For The Rapid Detection Of Salmonella Infantis In Dry Dog Food And Treats,
2020
Chapman University
Microplate Immunocapture Coupled With The 3m Molecular Detection System And Selective Plating For The Rapid Detection Of Salmonella Infantis In Dry Dog Food And Treats, Danielle K. Rosen, Miguel Gallardo, Mcclain Vail, Rosalee S. Hellberg
Food Science Faculty Articles and Research
The objective of this study was to use microplate immunocapture (IC) to reduce the enrichment time required for detection of Salmonella in pet food with the 3 M Molecular Detection System (MDS) or selective plating on XLD. Dog food and pig ear treats were inoculated with Salmonella Infantis at concentrations of 100–104 CFU/25 g, followed by a 3-h enrichment, then microplate IC and 3 M MDS or microplate IC and selective plating on XLD. Another set of samples underwent a traditional 24-h enrichment followed by 3 M MDS or selective plating. Based on the results of three …
View On Bioactive Substance Nutritional Intervention Approaches Of Novel Coronavirus Pneumonia,
2020
School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha,Hunan 410114 , China
View On Bioactive Substance Nutritional Intervention Approaches Of Novel Coronavirus Pneumonia, Huang Shou-En, Zheng Jian-Xian
Food and Machinery
Novel coronavirus pneumonia (NCP) is a kind of respiratory diseases mainly caused by novel coronavirus, which can be transmitted through respiratory droplets and contact. At present, no effective drugs for it were found, and the treatment is mainly symptomatic and supportive. In addition to medical treatment, a scientific and reasonable diet is also an important part for improving nutritional health, enhancing disease resistance and defeating novel coronavirus pneumonia. Therefore, from the perspective of food nutrition, the authors discussthe intervention approaches of bioactive substance nutrition to defend against the novel coronavirus pneumonia, and put forward the policy recommendations for the development …
Subchronic Toxicity Of Cerasus Lannesiana Albo-Roseain In Rats,
2020
School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166 , China ；Safety Assessment and Research Center for Drug, Pesticide and Veterinary Drug of Jiangsu Province,Nanjing, Jiangsu 211166 , China
Subchronic Toxicity Of Cerasus Lannesiana Albo-Roseain In Rats, Zhang Cheng-Xiang, Li Shi-Fen, Wang Yu-Bang, Zhang Lu-Lu, Yan Ting, Zhu Xue-Feng
Food and Machinery
A total of 100 SD rats, half male and half female, were randomly divided into untreated control group (C1 group), treated control group (C2 group), low dose group (Ⅰgroup), middle dose group (Ⅱ group), and high dose group (Ⅲ group). The rats were fed continuously for 13 weeks, and the body weight, food intake, blood routine indexes, blood biochemical indexes, urine routine indexes, main organ weights and pathological histological examination of the organs were observed. Results: There was no significant difference between the observation groups (P＞0.05). The pathological changes related to Cerasus lannesiana Albo-rosea were not found in the pathological …
The Preparation And Application Of Immunoaffinity Column For Neurotoxic Shellfish Poisoning,
2020
Quality 〔Shanghai〕 Testing and Technology Co., Ltd., Shanghai 201108 , China
The Preparation And Application Of Immunoaffinity Column For Neurotoxic Shellfish Poisoning, Dong Xin, Bai Jing-Miao, Wu Hai-Yan
Food and Machinery
Objective: Prepare immunoaffinity column(IAC) for pre-processing Neurotoxic Shellfish Poisoning(NSP) samples, and to establish a method of IAC purification LC-MS/MS spectrometry for the NSP. Method:The IAC for the NSP was prepared by purification of PbTX-2 monoclonal antibody and agarose gel (Sepharose 4B) as carrier. The samples were extracted with 80% methanol aqueous solution, diluted with PBS buffer, purified and enriched by the IAC, and analyzed by LC-MS/MS. Meanwhile, the parameters of IAC such as sample solution and eluent were optimized. The results showed: The IAC for the NSP had a good purification effect on shellfish samples, reduced the interference of fat, …
Fingerprints And Content Changes Of Various Constituents Of The Raw And Processed Guizhou Senecio Scandens Buch.Ham,
2020
Qiannan Medical College for Nationalities, Duyun, Guizhou, 558000 , China
Fingerprints And Content Changes Of Various Constituents Of The Raw And Processed Guizhou Senecio Scandens Buch.Ham, Li Yan, Pan Yan-Fan, Zhang Tao, Han Zhong-Yao
Food and Machinery
HPLC fingerprints of the raw and processed of S. scandens Buch. Ham were established by HPLC DAD. The HPLC fingerprints were analyzed by similarity analysis and cluster analysis. The contents of hyperoside, chlorogenic acid, total flavonoids and total alkaloid in the raw and processed of S. scandens Buch. Ham were also determined. The results showed that the fingerprints of 10 batches of raw and vinegar products were established with 12 and 8 common peaks respectively. The similarity results showed that the similarity of 10 batches of raw materials was 0.990~0.999, and that of the 10 batches of vinegar materials was …
Design Of Conical Root Cutting Device For Oudemansiella Raphanipes,
2020
China Jiliang University, Hangzhou, Zhejiang 310018 , China
Design Of Conical Root Cutting Device For Oudemansiella Raphanipes, Li Yi-Xin, Zhao Ming-Yan, Zhou Qiao-Jun, Liang Xi-Feng, Cai Wei-Ming, Hu Jian-Hong, Xie Chong-Yang, Chen Tao, Cai Hui
Food and Machinery
This conical root-cutting device was designed tosolve the problem of slow rooting and poor consistency of artificial cone rooting about Oudemansiella raphanipes. The cutting device adopts two symmetrically arranged four-bar linkage mechanisms, and the connecting rod blade forms a waist-shaped motion track. By forming a cone-shaped envelope, this device could realize the taper cutting of the root of the O. raphanipes. The industrial robot which equipped with the camera recognizes could capture and precisely control the depth of the O. raphanipes into the cutting area. The experimental results indicated that the two connecting rod blades performed a total of …
Design And Experimental Research Of Jujube Core-Removing Machine Based On A Single Chip Microcomputer,
2020
Electrical and Mechanical Engineering, Shangqiu Polytechnic, Shangqiu, Henan 450042 , China
Design And Experimental Research Of Jujube Core-Removing Machine Based On A Single Chip Microcomputer, Wang Hua, Zhang Jian-Feng
Food and Machinery
By using the relationship between the linear velocity and the angular velocity on the same ellipsoid, a three-bar three-point mechanism is designed. And by using the single chip microcomputer to control the whole process of removing the core, the speed control of removing the core of jujube is realized. At the same time, it also realizes the automatic positioning, automatic de-nucleation and automatic discharging in the process of de-nucleation. The test prototype shows, the device can meet the needs of current automatic operation of jujube enucleation, with the advantages of simple construction, accurate location, high efficiency, easy operation etc.
Improvement Of Tipping Paper Conveying System For Zj17 Cigarette Machine,
2020
Sanxia Tobacco Factory, China Tobacco Hubei Industrial Co., Ltd., Yichang, Hubei 443100 , China
Improvement Of Tipping Paper Conveying System For Zj17 Cigarette Machine, Liu Shi-Ming, Zhou Fu-Ru, Wang Jian, Shi You-Zhi, Li Jun-Yao, Cao Xiao-Dong, Jian Rong
Food and Machinery
In order to solve the problem of lateral displacement of the tipping paper in the production of the ZJ17 cigarette machine, the ZJ17 cigarette machine’s tipping paper conveying system was improved. Through the development of a variable PI tipping paper intelligent correction mechanism, real-time detection of the horizontal offset of the tipping paper conveying process and active correction, the number of manual corrections has been reduced from 29.86 times / shift before improvement to 0.90 times / shift. The length of the tipping paper caused by the lateral displacement of the paper is also reduced from 4.19 times / shift …
Study On The Uniformity Of Frozen Beef With Various Sizes And Shapes Thawed By Radio Frequency,
2020
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306 , China ；Engineering Research Center of Food Thermal-processing Technology, Shanghai 201306 , China
Study On The Uniformity Of Frozen Beef With Various Sizes And Shapes Thawed By Radio Frequency, He Jia-Ling, Chen Lu, Zhang Ru-Yi, Zhu Ya-Li, Li Feng, Jiao Yang
Food and Machinery
To investigate the effects of geometric parameters on uniformity of frozen beef thawed by radio frequency (RF), frozen beef samples with 8 different shapes, thickness, bottom areas and placements were thawed in a RF oven (40.68 MHz) respectively for determining the thawing uniformity. Meanwhile, a computer model was established and utilized to predict the thawing rate and temperature distribution of the samples. The predicted temperature distribution showed a good agreement with the experimental results. The general thawing rates of all beef samples are constant and then decreased gradually as reaching the phase change temperature zone. Samples with larger thickness showed …
Optimization On Freeze-Drying Technology Of Bayberry Based On The End Time Of Sublimation And Analytical Drying,
2020
Wenzhou Academy of Agriculture Science, Wenzhou, Zhejiang 325000 , China
Optimization On Freeze-Drying Technology Of Bayberry Based On The End Time Of Sublimation And Analytical Drying, Chen Lin-He, Hu Xia
Food and Machinery
Taking the Myrica rubra Dongkui as the raw material, made use of the home-made online measurement system to monitor the weight and temperature of red bayberry during freeze-drying process in vacuum and low temperature environment to get the changing curve. According to the online data of temperature and weight of red bayberry during freeze-drying process from our online measurement system and moisture adsorption rate of freeze-dried red bayberry can be used as an indicator for determining sublimation drying end time. In addition, the central temperature or weight variation rate of freeze-drying product can be used for estimating desorption drying end …
Vegetable Image Recognition Based On Improved Neural Network Algorithm,
2020
Shangqiu Polytechnic, Shangqiu, Henan 476000 , China
Vegetable Image Recognition Based On Improved Neural Network Algorithm, Lu Fan
Food and Machinery
In order to improve the effect of vegetable image recognition, a neural network algorithm was proposed. Firstly, radial basis function neural network model was established, including gradient descent method for solving the weight parameters. K-means clustering method increasing the radius of neighborhood was calculated implicit function center value, and the nuclear width was used adjacent cluster centers. Secondly, quantum genetic algorithm was deleted the redundant weights and neuron. Thirdly, vegetable image feature extraction was extracted. Finally, the process was given. The simulation results showed that the average recognition rate of shape feature was 97.56%, and the texture feature was 95.60%. …
Study On Correlation Between Forced Ventilation Precooling And Temperature Distribution Of Strawberry In Fresh-Keeping Transportation,
2020
Shanxi Traffic Vocational and Technical College, Taiyuan, Shanxi 030031 , China
Study On Correlation Between Forced Ventilation Precooling And Temperature Distribution Of Strawberry In Fresh-Keeping Transportation, Cheng Li-Li
Food and Machinery
Studied the temperature distribution of strawberry during commercial forced air pre-cooling, quantifies the relationship between environment and product temperature, and evaluated the pre-cooling duration. Results: the half-cooling time (HCT) inside the pre-cooled tunnel was about twice the external semi-cooling time, and the HCT outside the tunnel was closely related to the internal HCT. The temperature prediction from a limited number of sensors detected a temperature change of up to 7 ℃ at the end of pre-cooling, indicating that in some cases the pre-cooling time should be extended to increase the uniformity of the cooling temperature.
