Effect Of Withering Time On Biochemical Components And Volatile Of Tea Leaves From Danxia 8,
2023
Tea Plant Institute, Guangdong Academy of Agricultural Science, Guangzhou, Guangdong 510640 , China ；Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Guangzhou, Guangdong 510640 , China
Effect Of Withering Time On Biochemical Components And Volatile Of Tea Leaves From Danxia 8, Xiao-Yan Qiao, Wei Chen, Cheng-Ying Ma, Dong Chen
Food and Machinery
The comparative analysis was performed for the biochemical components, and volatile of tea leaves from Danxia 8 treated at different withering time. The regularity of biochemical characteristics and aroma profile were expected to find out by statistical methods. The results showed that tea polyphenols increased significantly from 0 h to 23 h, and then decreased significantly. The content of free amino acids increased significantly from 0 h to 16 h, while theanine decreased remarkably. The contents of free amino acids and theanine decreased significantly in the next time. At the whole withering process, caffeine content increased significantly, but theobromine decreased …
Research On The Application Of Three-Step Hybrid Variable Selection Strategy In Chicken Moisture Detection By Near Infrared,
2023
College of Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801 , China
Research On The Application Of Three-Step Hybrid Variable Selection Strategy In Chicken Moisture Detection By Near Infrared, Kai Yuan, Zhi-Yong Zhang, Qian Xi, Ying-Rui Wu, Dong-Sheng Guo, Guo-Kang He
Food and Machinery
Based on the three-step hybrid strategy of effective variable selection (rough selection, fine selection and optimal selection) in multivariate calibration of spectra, a feature variable selection method combining interval partial least squares (iPLS), interval variable iterative space shrinkage approach (iVISSA) and iteratively retaining informative variables (IRIV) was proposed to select the feature wavelengths of the near-infrared spectra of fresh chicken breast,and established a chicken moisture detection model. The number of modeled wavelengths was reduced by 0.76% after iPLS-iVISSA-IRIV, but the accuracy were stability of the model are gradually improved. The modeling results using the selected 8 characteristic wavelengths were as …
Pitch Design And Simulation Analysis Of Variable Pitch Spiral Structure,
2023
School of Mechanical and Electrical Engineering, Henan University of Technology,Zhengzhou, Henan 450001 , China
Pitch Design And Simulation Analysis Of Variable Pitch Spiral Structure, Fei-Xiang Li, Xiang-Dong Zong, Yong-Xiang Li, Jun-Hui Fu
Food and Machinery
A new design method of spiral structure with equal diameter and variable pitch is proposed to improve the spiral feeding accuracy of wheat flour. Solidworks software is used to establish a three-dimensional model and the wheat flour material is used for discrete element simulation to observe the feeding amount and feed opening of the spiral feed section. The stability of the flow rate is compared with the conventional equal-diameter variable pitch spiral structure. The tests shows that, compared with the existing equidistant spiral structure, the experimental design of the variable pitch spiral feed section is uniformly fed at the same …
Improvement Of Electrification Of Hand-Made Cigar Machine,
2023
China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei 430040 , China ；Sanxia Tobacco Factory, China Tobacco Hubei Industrial Co., Ltd., Yichang, Hubei 443100 , China
Improvement Of Electrification Of Hand-Made Cigar Machine, Jun-Yao Li, Zi-Xiang Huang, Jian Wang, Qun-Ling Guo, Rong Jian, Tao Chen, You-Zhi Shi
Food and Machinery
This paper improves the traditional cigar machine and configures endogenous mechanical power instead of manual. The SA / TDR63M4 geared motor is selected through theoretical calculation to make the electric cigar machine run steadily. The improved electric cigar machine reduces the labor intensity of staff, the average daily output efficiency can increase by 20.13%, the standard deviation of cigar resistance decreases from 109.816 kPa to 73.542 kPa, and the standard deviation of circumference decreases from 0.613 mm to 0.370 mm, indicating that the electric cigar machine can improve the output efficiency of round-head flat-tailed hand-made cigars and ensure the consistency …
Research Progress On The Extraction Of Plant Polyphenols,
2023
College of Food Science and Technology, Wuhan Polytechnic University, Wuhan, Hubei 430000 , China
Research Progress On The Extraction Of Plant Polyphenols, Fu-Lin Tian, Wen-Jing Huang, Zhan Wang, Xian-Kui Qin, Wang-Yang Shen, Qiao-Yu Cai
Food and Machinery
In this review, the non-mentioned extraction methods of plant polyphenol in the existing research are summarized, including subcritical extraction, low eutectic extraction, and pressurized extraction, etc. The principles, advantages and disadvantages of different extraction methods are deeply analyzed. Moreover, the development direction of plant polyphenol extraction is prospected.
Research On Application Of Modified Atmosphere In Fresh-Keeping Technology Of Fruits And Vegetables In Cold Chain Logistics,
2023
Zhejiang International Maritime College, Zhoushan, Zhejiang 316021 , China
Research On Application Of Modified Atmosphere In Fresh-Keeping Technology Of Fruits And Vegetables In Cold Chain Logistics, Wei He
Food and Machinery
This study summarizes the application research of the modified atmosphere preservation technology of fruits and vegetables in cold chain logistics domestic and abroad, and summarizes the basic principles of modified atmosphere preservation technology and its application status of fruits and vegetables in cold chain logistics domestic and abroad. The trend of the application of modified atmosphere preservation technology for fruits and vegetables in cold chain logistics will help the healthy development of Chinese fruit and vegetable industry.
Application Of Food In Functional Products From The Perspective Of Antioxidant Dietary Supplement,
2023
Food Review Center of State Administration for Market Regulation, Beijing 100070 , China
Application Of Food In Functional Products From The Perspective Of Antioxidant Dietary Supplement, Yi Sa
Food and Machinery
Anti-oxidation is an effective process to inhibit the oxidation of free radicals. The human body produces anti-oxidation substances as well as free radicals. With the improvement of material life, people hope to satisfy their health needs by eating natural and healthy food. In this paper, through the analysis of the raw materials and the compatibility of the products, it is found that the food and the extract are widely used in the anti-oxidation functional food, and the anti-oxidation function of the raw materials and the anti-oxidation function of the dietary supplement have been developed, the general situation of the use …
Effect Of L-Cysteine Hydrochloride On The Contents Of Four Toxic Aldehydes And Fluorescent Ages In Biscuits,
2023
Department of Food Science and Engineering, Jinan University, Guangzhou, Guangdong 510000 , China
Effect Of L-Cysteine Hydrochloride On The Contents Of Four Toxic Aldehydes And Fluorescent Ages In Biscuits, Ting Weng, Jie Zheng, Cai-Huan Huang, Shi-Yi Ou
Food and Machinery
In the current study, different levels of L-cysteine hydrochloride (0.3, 0.6, 1.0, 1.5 g/kg) were incorporated in dough for the preparation of biscuits to investigate the effect of L-cysteine on the appearance and the content of four toxic aldehydes and fluorescent advanced glycation end products(AGEs) in biscuits. The results showed that the addition of L-cysteine hydrochloride brightened the color of the biscuits, and cause a slight decrease in pH values. The incorporation of L-cysteine hydrochloride significantly decreased the content of 5-hydroxymethyl furfural(HMF), 3-deoxyglucosone(3-DG), glyoxal(GO), methylglyoxal(MGO) and fluorescent AGEs in biscuits in a dose-dependent manner. The addition of L-cysteine at the …
Preparation And Structural Characterization Of Zinc-Binding Antioxidant Peptides From Corbicula Fluminea Hydrolysate,
2023
Department of Biology and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500 , China
Preparation And Structural Characterization Of Zinc-Binding Antioxidant Peptides From Corbicula Fluminea Hydrolysate, Jing-Jing Liu, Yun-Tao Xu, Chen-Hui Zhu, Qian-Qian Huang, Yao-Ping Han, Xue-Feng Wang, Ran Zhang, Yang-Jun Dai
Food and Machinery
Using clam meat as protein source, the hydrolysate was obtained by enzymehydrolysis with neutral protease. Antioxidant peptides were then separated and purified from the enzymatich-ydrolysate of Corbicula flumineaby using glucose gel G-50. Zinc-binding antioxidant peptides were prepared according to optimal process. Qualitative analysis of chelate products was carried out byninhydrin method and sodium sulfide method. Ultraviolet spectra, Fourier infrared and fluorescent light spectra, X-radiation diffraction and scanning electron microscopy were applied to predict the structure of the chelate products. The results showed that the product powder is a kind of polypeptide zinc chelate. The carboxyl, amino and amide bonds of …
Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method,
2023
College of Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801 , China
Design Of Quinoa Moisture Rapid Detector Based On Capacitance Method, Qian Xi, Zhi-Yong Zhang, Kai Yuan, Dong-Sheng Guo, Ying-Rui Wu
Food and Machinery
The effects of temperature (5~40 ℃), water content (10.14%~29.55%) and frequency (1~100 kHz) on quinoa capacitance were studied by LCR meter. Based on the multiple regression analysis method, and the optimal excitation frequency (21 kHz) and water content detection model for quinoa water content detection were determined. The minimum system board of MSP430F149 microcontroller, TFT touch-screen, AD5933 impedance measurement chip, self-made concentric circle capacitance sensor and DS18B20 digital temperature sensor were selected to complete the design of the quinoa moisture rapid detector. The accuracy test of the detector showed that the average relative error of quinoa water content test results …
Multi-Objective Lightweight Design For Big Arm Of Md-1200yj Palletizing Robot,
2023
Department of Mechanical Engineering, Tianjin University Renai College, Tianjin 301636 , China
Multi-Objective Lightweight Design For Big Arm Of Md-1200yj Palletizing Robot, Ying He, Han Gao, Chao Ma, Li Gu
Food and Machinery
Finite element model of big arm of MD-1200YJ palletizing robot was established,the accuracy of the finite element model was verified by modal test.By static analysis taking into account dynamic factors, constrained modal analysis, vibration response test and frequency response analysis to determine to use minimal mass, maximizing the first and second natural frequency, minimizing the maximal stress, minimizing the maximal deformation and as the optimization objectives. Taking structure parameters as design variables and boundary conditionsof design variables as the constraint conditions, the approximation models of objective functions and constraint functions were established by the Box-Behnken and the RSM. The optimal …
Design Of Weighing System For Micro Mixing Powdery Particles,
2023
Jimei University School of Mechanical and Energy Engineering, Xiamen, Fujian 361021 , China
Design Of Weighing System For Micro Mixing Powdery Particles, Da-Pan Hou, Ju-Dong Liu
Food and Machinery
To improve the weighing accuracy and efficiency of mixed powder granules, the material characteristics of the mixed powder granules were studied. The material characteristics of mixed powdery particles are studied. According to the influence of the density, binding property and quantitative size of the mixed materials on the accuracy of quantitative feeding, a method of combined calculation after volumetric quantitative molding is proposed to solve the quantitative error. Studed The influence of the combination model on the combination quantitative error, and the influence of the single bucket quantitative error on the combination process in the combination process. The volume forming …
Expression, Strengthening And Development Of Color Association In Food Packaging Design,
2023
School of Fashion Design, Shanghai Institute of Visual Art, Shanghai 200438 , China
Expression, Strengthening And Development Of Color Association In Food Packaging Design, Li Xia
Food and Machinery
Food packaging with strong color association can not only transmit food information, but also let consumers understand the cultural connotation behind the product and attract consumers' attention. Taking the associativity of color as the starting point, analyzing the color elements in food packaging based on the relevant theories of color psychology, enhancing the color impact of modern food packaging design, and enhancing the visual experience of consumers, with creating more social value, optimize the color experience of consumers and provide color services for brand extension.
Optimization Of Extraction Process Of Lignans And Polyphenols By Ultrasonic Wave Assisted Extraction From Cinnamomum Camphora,
2023
School of Food Science and Technology, Henan Institute of Science and Technology,Xinxiang, Henan 453003 , China
Optimization Of Extraction Process Of Lignans And Polyphenols By Ultrasonic Wave Assisted Extraction From Cinnamomum Camphora, Hai-Xu Zhou, Mei-Yu Xie, Han Gao, Bo Li, Tong-Chao Su, Zhong-Hai Li
Food and Machinery
Response surface methodology (RSM) based on Box Behnken Design (BBD) was employed to optimize the extraction conditions including the liquid-to-solid ratio, ultrasonic time, ethanol concentration and extraction time. The optimized conditions were as follows: liquid-to-solid ratio 1∶22 (g/mL), ultrasonic time 3 min, ethanol concentration 80% and extraction time 78 min. Under these conditions, the experimental yield of lignans and polyphenol were 44.89 mg/g, 48.17 mg/g, respectively.
Establishment And Detection Of Moisture Prediction Model Of Key Processes Of Cigarette Cutting Process,
2023
Zhangjiakou Cigarette Factory Co., Ltd., Zhangjiakou, Hebei 075000 , China
Establishment And Detection Of Moisture Prediction Model Of Key Processes Of Cigarette Cutting Process, Zi-Juan Li, Bo Liu, Yang Gao, Jiao-Jiao Chen
Food and Machinery
Taking the loosening and conditioning process, feeding moisture returning process, hot air moistening process and the whole silk making process as the research objects, the artificial neural network and multiple regression modeling method were used to investigate the influence of different modeling methods on the moisture prediction accuracy of each process. moreover, the predicted results were tested experimentally. The experimental results showed that the mean of the absolute value of the prediction error was 0.24% for the loose moisture returning process with multiple regression modeling method. The mean of the absolute value of the prediction error was 0.20% for feeding …
Detection Method Of Mutton Adulteration Based On Pso-Lssvm And Characteristic Wavelengths Extraction,
2023
Hebei Agricultural University, Baoding, Hebei 071000 , China ；National MuttonProcessing Technology Research and Development Center〔Hengshui Zhihao AnimalHusbandry Technology Co., Ltd.〕, Hengshui, Hebei 053000 , China
Detection Method Of Mutton Adulteration Based On Pso-Lssvm And Characteristic Wavelengths Extraction, Tian-Tian Cheng, Ke-Jian Wang, Xian-Zhong Han, Shi Li, Yuan Wang
Food and Machinery
In order to solve the problem of fast detection of adulteration of mutton and pork, the spectral collection of adulterated mutton was carried out by using a multi-spectral instrument, and the reflectivity of samples at the band of 350~1 100 nm was obtained. For data preprocessing, Particle Swarm Optimization (PSO) was used to optimize the Least Squares Support Vector Machine (LSSVM), and a Least Squares Support Vector Machine (PSO-LSSVM) model based on Particle Swarm Optimization was established, compared with Partial Least Squares(PLS), Back Propagation Neural Network (BPNN) and LSSVM models. The result showed that PSO algorithm could effectively optimize LSSVM …
Geographical Origin Traceability Discrimination Of Chongming Rice Wine,
2023
Institute for Agri-products Standards and Testing Technology, Shanghai 201403 , China
Geographical Origin Traceability Discrimination Of Chongming Rice Wine, Xing Liu, Qai-Cai Zhang, Chun-Xia Yao, Wei-Guo Song
Food and Machinery
Shanghai Chongming rice wine was used as the main research subject in this study. The natural abundance of hydrogen and oxygen stable isotopes (δ2H and δ18O values), mineral elements and free amino acids content were analyzed. The discriminant models of Chongming rice wines were established and the characteristic variables were screened by principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). The results showed that the δ2H and δ18O values, mineral elements and free amino acids content in rice wines from different geographic origins were different, but only δ2 …
Design And Simulation Of Coffee Capsule Aluminum Foil Welding Equipment,
2023
School of Mechanical and Electrical Engineering, Wuxi Taihu University, Wuxi, Jiangsu 214000 ,China
Design And Simulation Of Coffee Capsule Aluminum Foil Welding Equipment, Jing-Feng Ding, Xiao-Zuo Xu, Jiang Xu
Food and Machinery
In order to improve the welding quality of the aluminum foil at the bottom of the coffee capsule, a coffee capsule aluminum foil welding device based on a grooved cam drive was designed. The key transmission system of coffee capsule aluminum foil welding equipment was designed in detail, including the transmission system structure design, the calculation of groove cam motion curve, the derivation of convex contour curve, etc. In ADAMS, the key transmission system model in aluminum foil welding equipment was established, and a simulation environment was built to perform kinematic analysis on the designed transmission system. Rigid-flexible coupling analysis …
An Innovative Approach To Improve Oil Production And Quality Of
Mustard (Brassica Juncea L.) With Multi-Nutrient-Rich Polyhalite,
2023
University of Nebraska-Lincoln, Govind Ballabh Pant University of Agricultural & Technology, Dr. Rajendra Prasad Central Agricultural University
An Innovative Approach To Improve Oil Production And Quality Of Mustard (Brassica Juncea L.) With Multi-Nutrient-Rich Polyhalite, Biswajit Pramanick, B.S. Mahapatra, Debarati Datta, Prithwiraj Dey, S.P. Singh, Ajay Kumar, Bappa Paramanik, Neeraj Awasthi
Department of Agronomy and Horticulture: Faculty Publications
Polyhalite popularly known as POLY4 is a multi-nutrient fertiliser containing K, S, Mg, Ca, and micronutrients. POLY4 has a low carbon footprint, is certified for organic agriculture, and has the potential to improve crop productivity and quality attributes Indian mustard which often faces challenges due to imbalanced nutrition supplied in the current fertilisation schedule. The hypothesis of the study was that the multi-nutrient fartiliser POLY4 can ensure balanced nutrition for Indian mustard. Considering this, a field experiment was conducted during the winter seasons of 2017–18 and 2018–19 to evaluate the effect of POLY4 on Indian mustard (Brassica juncea L.) …
Bison Influences On Composition And Diversity Of Riparian Plant Communities In Yellowstone National Park,
2023
Oregon State University
Bison Influences On Composition And Diversity Of Riparian Plant Communities In Yellowstone National Park, J. Boone Kauffman, Dian Lyn Cummings, Cimarron Kauffman, Robert L. Beschta, Jeremy Brooks, Keeley Macneill, William J. Ripple
Aspen Bibliography
Riparian zones are among the most biologically diverse ecosystems in the Intermountain West, USA, and provide valuable ecosystem services, including high rates of biotic productivity, nutrient processing, and carbon storage. Thus, their sustainability is a high priority for land managers. Large ungulates affect composition and structure of riparian/stream ecosystems through herbivory and physical effects, via trailing and trampling. Bison (Bison bison) in Yellowstone National Park (YNP) have been characterized as "ecosystem engineers" because of their demonstrated effects on phenology, aboveground productivity of grasses, and woody vegetation structure. Bison have greatly increased in numbers during the last two decades …
