Open Access. Powered by Scholars. Published by Universities.®

Agriculture Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4801 - 4830 of 33722

Full-Text Articles in Agriculture

Progress On Detection Methods Of Main Mycotoxins In Food, Hang Yuan, Tong-Ying Ding Feb 2023

Progress On Detection Methods Of Main Mycotoxins In Food, Hang Yuan, Tong-Ying Ding

Food and Machinery

This review focused on the situation and toxicity of aflatoxin, deoxynivalenol, and alternaria toxin contaminated food, and the current commonly used mycotoxin detection methods at domestic and abroad were summarized, with the advantages and disadvantages of each method being analyzed and compred. Finally, the development direction of mycotoxin detection method in the future was prospected.

Go to article

Research Progress On The Extraction Of Natural Astaxanthin From Haematococcus Pluvialis, Yan Li, Jing Gao Feb 2023

Research Progress On The Extraction Of Natural Astaxanthin From Haematococcus Pluvialis, Yan Li, Jing Gao

Food and Machinery

Natural astaxanthin has stronger stability, biological activity and safety than chemically synthesized astaxanthin. Haematococcus pluvia-lis is the most important biological source of natural astaxanthin and more attentions have been paid to the extraction of astaxanthin from H. pluvialis. This work focuses on the development methods of cell-wall disruption of H. pluvialis and the extraction of astaxanthin, which can provides a theoretical basis for the efficient extraction and comprehensive utilization of natural astaxanthin from H. pluvialis.

Go to article

Rapid And Nondestructive Detection Of Physicochemical Properties Of Marzipan Based On Near Infrared Spectroscopy, Su-Bin Chen Feb 2023

Rapid And Nondestructive Detection Of Physicochemical Properties Of Marzipan Based On Near Infrared Spectroscopy, Su-Bin Chen

Food and Machinery

A calibration model of near-infrared spectroscopy for the determination of water and total sugar is established and optimized in order to realize the rapid detection of physical and chemical indexes of marzipan. The partial least square method is used to establish NIR calibration models for the determination of water and total sugar in marzipan. Then, the abnormal sample removal, spectral transformation, sample set partition and characteristic wavelength selection are used to optimize its performance. The results show that the number of modeling wave points of the moisture determination model is reduced to 0.8% of the total spectrum, R and R …

Go to article

Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou Feb 2023

Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou

Food and Machinery

Using flow injection analysis technology, online distillation, extraction, and color development, a continuous flow analysis method for rapid determination of volatile phenol residues in fish meat and its products was established. The results showed that the linear range of the established detection method was 0.00~40.00 μg/L, with the correlation coefficient r=0.999 9, the detection limit of the method is 0.030 mg/kg, with the RSD ranging from 0.952% to 6.543% (n=11). The standard recovery rate was 72.000%~90.827%. Compared with the standard method, this method had the advantages of accuracy, efficiency, simplicity, and environmental protection, and was suitable for the promotion and …

Go to article

Evaluation Of Uncertainty In Determination Of Enrofloxacin And Ciprofloxacin Residues In Bean Sprouts By Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry, Yuan-Xu Shi, Shui-Feng Zhang, Xiang-Jie Pan, Ting-Ting Feng, Lu-Lu Wang Feb 2023

Evaluation Of Uncertainty In Determination Of Enrofloxacin And Ciprofloxacin Residues In Bean Sprouts By Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry, Yuan-Xu Shi, Shui-Feng Zhang, Xiang-Jie Pan, Ting-Ting Feng, Lu-Lu Wang

Food and Machinery

A method for the determination of trace-enrofloxacin and ciprofloxacin in bean sprouts by using ultra- performance liquid chromatography-tandem mass spectrometry was established. The mathematical model was established and used to evaluate the uncertainty components of this method. The sample was extracted with 0.1% acid acetonitrile directly, and purified by prime HLB (SPE), then analyzed by UPLC-MS/MS. The results showed that the main sources of uncertainty arose from the standard curve fitting and standard solution. The expanded uncertainty was 1.5 and 2.3 μg/kg for enrofloxacin and ciprofloxacin contents of 8.6 and 11.0 μg/kg in bean sprouts (k=2), respectively.

Go to article

Advances In Research And Industrial Development Of Plant-Based Cereal Beverage, Ting-Yu Liu, Su-Mei Zhou, Li-Ya Liu, Cui-Ping Yi Feb 2023

Advances In Research And Industrial Development Of Plant-Based Cereal Beverage, Ting-Yu Liu, Su-Mei Zhou, Li-Ya Liu, Cui-Ping Yi

Food and Machinery

In recent years, with the increase of consumer demand for plant-based, vegetarian and convenient food, the researches and development of beverage products from cereals, such as oats and rice et al. were also increased rapidly, different from their traditional use for staple food. In this study, the products and industrial development of plant-based cereal beverages at home and abroad were reviewed. The selection of raw materias, key technology, core problems affecting the product quality and the improvement of techniques during the process of plant-based cereal drinks were elaborated in detail. Finally, the future research and development of plant-based cereal beverages …

Go to article

Physicochemical And Functional Characterization Of Enzymatic Modification Of Dietary Fiber In Two Edible Fungus, Xi-Ming Yang, Hong-Yan Xu, Chao Wang, Sheng-Nan Li, Xin-Rui Zhao Feb 2023

Physicochemical And Functional Characterization Of Enzymatic Modification Of Dietary Fiber In Two Edible Fungus, Xi-Ming Yang, Hong-Yan Xu, Chao Wang, Sheng-Nan Li, Xin-Rui Zhao

Food and Machinery

In this study, two kinds of edible fungus Sporisorium reilianum and Pleurotus eryngii were used as raw materials. Soluble dietary fiber (S-SDF, P-SDF) and insoluble dietary fiber (S-IDF, P-IDF) were prepared by enzyme-gravimetric method. The physicochemical properties including swelling capacity, water holding capacity and oil holding capacity, and the functional properties including glucose adsorption capacity, sodium cholate adsorption capacity, cholesterol adsorption capacity and glucose dialysis retardation index were measured respectively. Results showed that S-SDF had the strongest swelling force (11.83 mL/g). P-IDF had the strongest water holding capacity (4.55 g/g). P-SDF had the strongest oil holding capacity (3.01 g/g). S-IDF …

Go to article

Generation Logic And Governance Path Of Crimes Against Food Safety Based On The Perspective Of Criminal Economics, Qiang Meng, Chun-Lei Li Feb 2023

Generation Logic And Governance Path Of Crimes Against Food Safety Based On The Perspective Of Criminal Economics, Qiang Meng, Chun-Lei Li

Food and Machinery

In view of the high incidence of crimes against food safety in China, the main reason is that the income of the crime is huge while the cost is very low, and the judicial status quo of “lighter” punishment for crimes against food safety, through the analysis framework of crime economics model, this paper makes a legal empirical study on the data of free lawsuit in 2019, and points out that efforts should be made to increase the direct cost of crime, expected punishment cost and conviction follow-up cost. Only by urging it to return to the criminal policy track …

Go to article

Effects Of Regenerator And Refrigerant On Performance Of Cascade Refrigeration System, Zheng Liang, Jiang Shen, Si-Yu Han Feb 2023

Effects Of Regenerator And Refrigerant On Performance Of Cascade Refrigeration System, Zheng Liang, Jiang Shen, Si-Yu Han

Food and Machinery

In order to optimize the cascade refrigeration system, the thermodynamic models of cascade refrigeration systems were established in this study, and the effects of low and high temperature stage condensation temperature, and regenerator position on the performance of R449A/CO2, NH3/CO2, R404A/CO2 cascade refrigeration systems were compared and analyzed. The results show that: at the same low temperature stage evaporation temperature, the optimal low temperature stage condensation temperature of the NH3/CO2 system is lower than that of the R449A/CO2 and R404A/CO2 systems, and the best COP of the NH …

Go to article

Design Of Spherical Type 360° Of Tea Stirring Machine, Flow Field Analysis And Experimental Analysis, Jun Yang, Mu-Hua Liu, Cheng-Zhi Ruan, Bo Zhang, Jiang-Hua Ye Feb 2023

Design Of Spherical Type 360° Of Tea Stirring Machine, Flow Field Analysis And Experimental Analysis, Jun Yang, Mu-Hua Liu, Cheng-Zhi Ruan, Bo Zhang, Jiang-Hua Ye

Food and Machinery

In order to solve the problem of uneven distribution of flow field in the working process of traditional cylindrical tea stirring machine, a new type of 360° spherical tea stirring machine is designed, and the structure of hot air conveying pipe of the tea stirring machine is optimized. The computational fluid dynamics software STAR-CCM+ is used to simulate the flow field of the spherical tank of the stirring machine. And the prototype is tested and verified. The results show that after the installation of annular guide plate on the air supply pipe of the 360° stirring machine, the temperature offset …

Go to article

Precise Positioning Of Micro Parts Based On Focusing-Zernike Matrix Algorithm, Ya-Jun Zhang Feb 2023

Precise Positioning Of Micro Parts Based On Focusing-Zernike Matrix Algorithm, Ya-Jun Zhang

Food and Machinery

In order to improve the precise positioning of micro parts, focusing-Zernike matrix algorithm were proposed. Firstly, coarse and fine combination focus function was established based on the Krisch edge detection operator and Sobel method. Secondly, focusing window was selected dynamically, and the factor was corrected target size of clarity evaluation function, focus direction was judged by improved hill-climbing algorithm. Thirdly, improved Zernike moment was determined the maximum circumscribed unit circle based on the normalization of the target point, and the pixel was judged edge point using edge parameters, then the process was given. Experimental simulation was done by the automatic …

Go to article

Application Of Robot Prototype Technology In Food Equipment Design, Mai Liu Feb 2023

Application Of Robot Prototype Technology In Food Equipment Design, Mai Liu

Food and Machinery

The article expounds the basic operation route and advantages of robot prototype technology by explaining the application examples of robot prototype technology in food equipment design. It proves that this technology has good use value and practical significance as a method to reduce the cost of developing new food equipment.

Go to article

Structural Design Of Noodle Machine Based On Fluid Simulation, Fei Gao, Peng Zhang, Chang-Yuan Zhang, Feng-Rui Zhang Feb 2023

Structural Design Of Noodle Machine Based On Fluid Simulation, Fei Gao, Peng Zhang, Chang-Yuan Zhang, Feng-Rui Zhang

Food and Machinery

In this paper, a kind of household noodle machine with longitudinal extrusion and spiral structure was designed. Meanwhile, using ANSYS software, the stirring and extrusion part of noodle machine was simulated. The pressure cloud map of the dough fluid domain, the strain cloud map and the stress cloud map of the squeezing axis were obtained by the coupling simulation of the dough fluid and the squeezing axis. When the pressure was between 894.40 and 994.20 kPa, the pressure at the outside was stable. The value of the maximum shape variable of the extrusion shaft was 0.62 mm, and the maximum …

Go to article

Systematic And Innovative Design Of Zhaoqing Wrapped Steamed Zongzi Package, Li Yan, Hai Fang, Ying-Min Deng Feb 2023

Systematic And Innovative Design Of Zhaoqing Wrapped Steamed Zongzi Package, Li Yan, Hai Fang, Ying-Min Deng

Food and Machinery

Zhaoqing wrapped steamed zongzi package has some problems in the market, such as uneven package design in level, lack of emphasis on user experience, lack of regional cultural characteristics. Through the analysis of user and use situation, extract the needs of good user experience in Zhaoqing wrapped steamed zongzi package, regional culture inheritance, green environmental protection and energy saving. Then analyze specific forms of Zhaoqing area culture to extract its regional cultural symbol elements. Finally,systematic and innovative design for “Zong Pin” wrapped steamed zongzi package, including brand image design, humanization design and green environmental protection design.

Go to article

Establishment Of Microbial Prediction System For Shelf Life Of Chilled Chicken, Yang Qu, Chang-Yan Zhou, Yu-Juan Suo, Dong-Lai Zhang, Yi-Yi Han, Dong-Sheng Feng, Xiao-Jun Yang, Miao-Yun Li Feb 2023

Establishment Of Microbial Prediction System For Shelf Life Of Chilled Chicken, Yang Qu, Chang-Yan Zhou, Yu-Juan Suo, Dong-Lai Zhang, Yi-Yi Han, Dong-Sheng Feng, Xiao-Jun Yang, Miao-Yun Li

Food and Machinery

Enterobacteriaceae, Brochothrix thermosphacta, and total viable counts (TVC) are the important parameters that affect the shelf life of chilled chicken. Discovering the correlation between the parameters and the accuracy of the shelf-life prediction is conducive to monitoring the storage of chilled chicken. To develop microbial prediction system for shelf life of chilled chicken, the bacterial counts were calculated to establish the growth model of these parameters using SGompertz model. Meanwhile, the Pearson correlation coefficient analysis was performed for the parameters and the accuracy of the shelf-life prediction. Then the prediction system was written by Visual Basic (VB) and verified with …

Go to article

Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang Feb 2023

Effects Of Chitosan Composite Coating On The Quality Of Mantis Shrimp During Refrigerated Storage, Yi-Han Qi, Ji-Xin Zhou, Yuan-Yuan Fan, Xiao-Wei Lan, Lei Sun, Zhen Zhang, Xue-Song Guo, Dan-Dan Li, Bao-Xian Chang

Food and Machinery

To investigate the preservation effect of chitosan composite coating on refrigerated mantis shrimps,taking the mantis shrimp as the subject, the chitosan, vitamin C, and corn starch as the coating materials, and the sensory evaluation, total colony (TVC), pH, volatile base nitrogen content (TVB-N), thiobarbituric acid (TBA) as the investigation index, the effects of chitosan-Vc-corn starch composite coating on mantis shrimps was studied. Results: the chitosan-VC-corn starch composite coating group was effectively delayed the increase of the TVC, pH value, TVB-N value and TBA value of mantis shrimp samples , and the effect was better than that of the control group …

Go to article

The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang Feb 2023

The Effect Of Exogenous Meja On Postharvest Quality Of Jiefang Zhong Loquat Fruit, Jun-Feng Zheng, Jian-Hua Xie, Jie Pang

Food and Machinery

The fruit of Jiefang zhong loquat was fumigated with 10, 20, 50 μmol/L MeJA for 8 hours. The effects of MeJA treatment on the postharvest quality of loquat during (4±1) ℃ cold storage were studied by measuring the respiratory intensity, weight loss rate, ethylene release rate, decay rate and TSS, total sugar, VC and TA content. The results showed that 20 μmol/L MeJA fumigation inhibited the respiratory intensity, reduced the weight loss rate and ethylene release rate in the early stage, maintained the content of total sugar, VC and TA, TSS content in the late stage. Based on the concentration …

Go to article

Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu Feb 2023

Research On A Rapid Detection Of Apple Defects Based On Mechanical Vision, Hui Gao, Guo-Feng Ma, Wei-Jie Liu

Food and Machinery

In view of the current situation that most of apple sorting in China is still manually screened, a rapid detection method is proposed for apple defects based on machine vision. According to the number of defect candidate areas, the preliminary judgment of apples is completed, and the weighted correlation vector machine is used to further judge the defective apples. The effectiveness and accuracy of the proposed method are verified by experiments. The experimental results show that the recognition accuracy of this method for 1 000 test samples is 99.1%, and the detection accuracy of various defects is high.

Go to article

Optimization Enzymatic Preparation Process And Antioxidant Activity Of Sheep Bone Polypeptide, Xiao-Ye Li, Zhen Zhang, Qiong Wang, Xue-Qi Wang Feb 2023

Optimization Enzymatic Preparation Process And Antioxidant Activity Of Sheep Bone Polypeptide, Xiao-Ye Li, Zhen Zhang, Qiong Wang, Xue-Qi Wang

Food and Machinery

Herein, the enzymatic hydrolysis polypeptide solution with antioxidant activity was prepared by enzymatic hydrolysis with alkaline protease using sheep bone powder as raw material. Taking hydrolysis degree as index, response surface optimization was carried out on the basis of single factor tests of enzymolysis time, enzymolysis temperature, enzyme dosage and enzymolysis pH. Taking sheep bone meal solution which has not been hydrolyzed by alkaline protease as the control group, the antioxidant capacity of the hydrolysate was determined. The results showed that the highest degree of hydrolysis of alkaline protease was (28.36±0.02)% when the enzymolysis time was 5 h, the enzymolysis …

Go to article

Optimization Of Ultrasonic-Assisted Extraction For Polyphenols From Perilla Leaves By Polyethylene Glycol And Its Antioxidant Activity, Qiao-Mei Ru, Guo-Ping Ren, Qiong Hu Feb 2023

Optimization Of Ultrasonic-Assisted Extraction For Polyphenols From Perilla Leaves By Polyethylene Glycol And Its Antioxidant Activity, Qiao-Mei Ru, Guo-Ping Ren, Qiong Hu

Food and Machinery

On the basis of single factor experiment, the concentration of polyethylene glycol, liquid/solid ratio, ultrasonic power and extraction time were optimized by Box-Behnken response surface analysis. Result: The results showed that the optimal extraction conditions were concentration of polyethylene glycol 68%, liquid/solid ratio 46∶1 (mL/g), ultrasonic power 157 W and extraction time 67 min. Under these conditions, the yield of polyphenols from perilla leaves reached 18.38 mg GAE/g·DW, while the predicted value was 18.21 mg GAE/g·DW, and the accuracy of the model reached 99.08%. Polyphenols from perilla leaves exhibited good antioxidant activity in a concentration-dependent manner. The IC50 of …

Go to article

Moringa Oleifera Seed Water Extract Protects Alcohol-Induced Movement Disorder In Caenorhabditis Elegans, Ying Peng Feb 2023

Moringa Oleifera Seed Water Extract Protects Alcohol-Induced Movement Disorder In Caenorhabditis Elegans, Ying Peng

Food and Machinery

It was investigated the alleviating effect of water-extracts from Moringa oleifera seeds (MWE) on alcohol damage, and explored the effects of Moringa seeds on the physiological changes of drunk nematodes. Different concentrations of MWE were used to interfere with nematodes drunkenness. Its movement, tissue ethanol concentration, calcineurin and acetylcholinesterase activity were evaluated. The results showed that the intervention concentration of MWE was 10 mg/mL, and the movement trajectory, frequency of head swinging and swallowing frequency of the nematode were significantly improved, compared with the control group. However, no significant difference was found compared to the un-treated group. MWE reduced the …

Go to article

Purification Of Polyfructose From Jerusalem Artichoke, Chao-Yang Li, Liang-Yu Li, Jing-Jing Diao, Li-Ping Zhang Feb 2023

Purification Of Polyfructose From Jerusalem Artichoke, Chao-Yang Li, Liang-Yu Li, Jing-Jing Diao, Li-Ping Zhang

Food and Machinery

In this study, the Jerusalem artichoke polyfructose was purified by the simulated mobile chromatography (SMC) and sequential simulated mobile bed (SSMB) according to the results of single column chromatographic system, which the parameters of the SMB and SSMB were investigated. Based on the results, the SSMB was the better technology and the optimized process parameters were as follows, feed concentration of 30%, ratio of material to solvent of 1.1∶1.0. Under these conditions, the concentration of the Jerusalem artichoke polyfructose was 17.9%, the purity was 96.9%, and the recovery was 95.8%, which was 17.7% higher than the material.

Go to article

Optimization Of Ultrasound-Assisted Extraction Process Of Antimicrobial Peptides From The By-Products Of Mytilus Edulis, Yue Zhang, Yu-Xia Yang, Guang-Yu Shi, Xin-Zhi Zhao, Yuan-Bo Pan, Qiong-Yi Xu Feb 2023

Optimization Of Ultrasound-Assisted Extraction Process Of Antimicrobial Peptides From The By-Products Of Mytilus Edulis, Yue Zhang, Yu-Xia Yang, Guang-Yu Shi, Xin-Zhi Zhao, Yuan-Bo Pan, Qiong-Yi Xu

Food and Machinery

The use of ultrasonic-assisted acetate extraction to improve the efficiency of the conventional acetate extraction technique with the aim of extracting antimicrobial peptides from Mytilus edulis by-product using acetate solution was investigated. Based on the single factor experiment, response surface methodology was used to optimize experimental conditions for extraction of antimicrobial peptides. The optimum extraction conditions for maximum antimicrobial peptide yield were established to be ultrasonic power of 200 W, acetate concentration of 0.8%, liquid-material ratio of 6∶1 (mL/g), and ultrasonic extraction time of 16 min. Under abovementioned conditions, the yield and the zone of inhibition against Staphylococcus aureus were …

Go to article

Process Optimization Of Vacuum-Frying Combined With Vacuum-Microwave Drying In Producing Shiitake Mushroom Chips, Ai-Qing Ren, Shan Deng, Xiao-Xian Tang, Zheng-Hua Duan Feb 2023

Process Optimization Of Vacuum-Frying Combined With Vacuum-Microwave Drying In Producing Shiitake Mushroom Chips, Ai-Qing Ren, Shan Deng, Xiao-Xian Tang, Zheng-Hua Duan

Food and Machinery

Vacuum-frying combined with vacuum-microwave drying was used to dry shiitake mushroom chips, and the process parameters were optimized. The results showed that the critical factors selected for the investigation were fried at 80 ℃ for 18.6 min, with vacuum pressure 0.095 MPa, and then dried with microwave vacuum degree 0.095 MPa, microwave power density 2.0 W/g, and dehydration to moisture content of 5%. It was verified that the experimental oil content and breaking force of products under this condition were 15.18% and 710.35 g, which were close to the predicted values (15.09% and 704.91 g). Compared with vacuum-frying, the breaking …

Go to article

Effect Of Drying Method On The Flavor Of Okra Flower Tea And Its Soup, Er-Bu Na, Xing-Lian Lan, Gui-Wu Wang, Kai-Zheng Huang, Ma-Ju Li, Wei Ran, Song-Lin Xin Feb 2023

Effect Of Drying Method On The Flavor Of Okra Flower Tea And Its Soup, Er-Bu Na, Xing-Lian Lan, Gui-Wu Wang, Kai-Zheng Huang, Ma-Ju Li, Wei Ran, Song-Lin Xin

Food and Machinery

The volatile components of okra flower tea and its soup prepared using different drying methods were tested and analyzed by high throughput time of flight mass spectrometry (GC-TOF-MS), and the components of okra flower tea and its soup were determined. The results showed that 194 volatile compounds were identified in okra flower tea and its soup prepared by using the two drying methods. Among them, organic acids, sugars and amino acids were the main ones. The relative contents of sugars, organic acids, alcohols, amides, esters, sulfonic acids and glycosides in freeze-dried flower tea and its soup were higher than those …

Go to article

Research Progress Of Heat Treatment In Paddy And Rice Storage And Processing, Ping Zong, Yan Wang, Wei-Guo Wu, Jian-Hao Ren, Na Li, Tao Zhou Feb 2023

Research Progress Of Heat Treatment In Paddy And Rice Storage And Processing, Ping Zong, Yan Wang, Wei-Guo Wu, Jian-Hao Ren, Na Li, Tao Zhou

Food and Machinery

The heat treatment methods commonly used in the storage and processing of paddy and rice are introduced in this paper and the effects to insect pests, sterilization, enzymatic inactivation and quality are summarized.Meanwhile, the negative effects of heat treatment on rice quality and some countermeasures are proposed.

Go to article

Research On Process Optimization And Quality Of Intermittent Microwave-Hot Air Coupling Drying Peanut, Zheng-Zheng Ling, Guang-Yue Ren, Xu Duan, Lin-Lin Li, Li-Ping Ma, Tie-You Dong, Xin-Lin Li Feb 2023

Research On Process Optimization And Quality Of Intermittent Microwave-Hot Air Coupling Drying Peanut, Zheng-Zheng Ling, Guang-Yue Ren, Xu Duan, Lin-Lin Li, Li-Ping Ma, Tie-You Dong, Xin-Lin Li

Food and Machinery

In order to explore the optimal process parameters of intermittent microwave-hot air coupled peanut drying, the optimal process parameters of peanut intermittent microwave-hot air coupled drying were determined using the response surface optimization analysis method. The comprehensive score of peanut drying rate and drying energy efficiency as response values. The optimal conditions were as followed: hot air temperature 45 ℃, microwave intensity 1.25 W/g, microwave intermittent ratio 1.10. Under these conditions, it was verified that the peanut intermittent microwave-hot air coupling drying rate was 0.517 g/min, the energy efficiency was 0.433 MJ/g, the comprehensive drying score was 0.710, and the …

Go to article

Research Progress In Microwave-Assisted Extraction Of Polysaccharides, Yong-Shuai Jing, Li-Cong Sun, Wen-Jing Cheng, Dong-Bo Liu, Lan Li, Dan-Shen Zhang, Lan-Fang Wu Feb 2023

Research Progress In Microwave-Assisted Extraction Of Polysaccharides, Yong-Shuai Jing, Li-Cong Sun, Wen-Jing Cheng, Dong-Bo Liu, Lan Li, Dan-Shen Zhang, Lan-Fang Wu

Food and Machinery

This study reviewed the principle and method of microwave-assisted extraction of polysaccharides and the combined applications of microwave-assisted extraction with ultrasonic method, enzyme method, ultrasonic synergistic enzyme method and acid-based solution method, and the related extraction research and application of polysaccharides were prospected.

Go to article

Breeding Of Yarrowia Lipolytica With High Lipase Production By Atmospheric Room Temperature Plasma Mutagenesis, Ya-Mei Ji, Li-Mei Wang, Bin Qi Feb 2023

Breeding Of Yarrowia Lipolytica With High Lipase Production By Atmospheric Room Temperature Plasma Mutagenesis, Ya-Mei Ji, Li-Mei Wang, Bin Qi

Food and Machinery

A lipase-producing Yarrowia lipolytica strain YL1 was mutagenized by atmospheric room temperature plasma. Tributyrin plate method, p-NPP method and acid-base titration method were used to screen out the target strain C4 with high lipase production, and then its genetic stability was studied. The results showed that the optimal mutagenesis time of Y. lipolytica strain YL1 was 60 s, and the lethality rate of the strain reached 97.45%. The lipase activity of the mutant strain C4 was 13.4 U/mL, which was 82.6% higher than the original strain, and it was genetically stable after multiple generations of culture. Compared with the …

Go to article

Effect Of Different Milling Methods On The Powder Properties Of Wheat Flour, Si-Yu Ma, Xiao-Ling Tian, Xiao-Xi Wang, Wen-Ya Cai Feb 2023

Effect Of Different Milling Methods On The Powder Properties Of Wheat Flour, Si-Yu Ma, Xiao-Ling Tian, Xiao-Xi Wang, Wen-Ya Cai

Food and Machinery

The grains of Yangmai 20 and Xinmai 26 were used as raw materials in this study. The wheat flour with different particle sizes were milled by the Impact mill, the Hammer mill, and the Universal pulverizer. The basic physical and chemical indexes such as moisture and ash content were measured. The flowability parameters were obtained by laser particle analyzer and powder property testing instrument, and the flowability of wheat flour was analyzed by the Carr index method. The results showed that among the three milling methods, the wheat flour milled by the Impact mill had the best flowability, while no …

Go to article

First Prev Next Last