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Full-Text Articles in Agriculture

Application Of Food In Functional Products From The Perspective Of Antioxidant Dietary Supplement, Yi Sa Feb 2023

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 …

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Research Progress On The Mechanism Of Dietary Fiber In Regulating Blood Sugar Of Type 2 Diabetes, Yan-Feng Wang, Xi-Hong Yang, Jun-Han Cao, Chang-Feng Qu, Li-Ping Zhang, Jin-Lai Miao, Wan-Cui Xie Feb 2023

Research Progress On The Mechanism Of Dietary Fiber In Regulating Blood Sugar Of Type 2 Diabetes, Yan-Feng Wang, Xi-Hong Yang, Jun-Han Cao, Chang-Feng Qu, Li-Ping Zhang, Jin-Lai Miao, Wan-Cui Xie

Food and Machinery

This article mainly reviews the hypoglycemic effect of dietary fiber on type 2 diabetes-including improving insulin resistance, regulating glucose and lipid metabolism disorders, improving oxidative stress, regulating intestinal flora and stabilizing postprandial blood glucose-delaying glucose absorption and inhibition The digestive enzyme activity was systematically analyzed and summarized from the level of action mechanism, with a view to providing more theoretical basis and reference for the application of dietary fiber in reducing and stabilizing blood glucose of type 2 diabetes.

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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 …

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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 Feb 2023

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 …

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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 Feb 2023

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 …

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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 …

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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.

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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 …

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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 …

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Multi-Objective Lightweight Design For Big Arm Of Md-1200yj Palletizing Robot, Ying He, Han Gao, Chao Ma, Li Gu Feb 2023

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 …

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Design Of Weighing System For Micro Mixing Powdery Particles, Da-Pan Hou, Ju-Dong Liu Feb 2023

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 …

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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 …

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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.

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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 …

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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.

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Expression, Strengthening And Development Of Color Association In Food Packaging Design, Li Xia Feb 2023

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.

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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 …

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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 …

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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 …

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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.

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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 …

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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 …

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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 Feb 2023

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.

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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 …

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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.

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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 …

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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 …

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Research On Process Optimization And Quality Of Alkali Soaking And Steam Fixing For Golden Matcha Green Protection, Ying Lu, Yong-Sheng Tan, Mao-Jun Yao, Qian Yang, Wen Sun Feb 2023

Research On Process Optimization And Quality Of Alkali Soaking And Steam Fixing For Golden Matcha Green Protection, Ying Lu, Yong-Sheng Tan, Mao-Jun Yao, Qian Yang, Wen Sun

Food and Machinery

In this study, golden tea was used as the raw material to optimize the green protection technology in the process of preparing golden matcha by the alkali soaking and steam fixing. Three significant influencing factors were obtained by Plackett-Burman design, including the alkali concentration, alkali soaking time and steam fixing time, and the process optimization was studied by the steepest ascent design and Box-Behnken design. The optimal conditions were as follows: The alkali concentration 0.15%, alkali soaking time 20 min, steam fixing time 92 s, solid-liquid ratio 1∶20 (g/mL), and the thickness of leaves 1 cm. Undercontrol of these conditions, …

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Establishment And Detection Of Moisture Prediction Model Of Key Processes Of Cigarette Cutting Process, Zi-Juan Li, Bo Liu, Yang Gao, Jiao-Jiao Chen Feb 2023

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 …

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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 …

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