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Articles 48751 - 48780 of 256036

Full-Text Articles in Life Sciences

Approved Situation And Problems Of The Spirulina Health Foods, Fu Yu, Jiang Yu, Wang Jin-Bo, Zhang Bo-Jin, Song Chen, Sun Ming-Xia Oct 2022

Approved Situation And Problems Of The Spirulina Health Foods, Fu Yu, Jiang Yu, Wang Jin-Bo, Zhang Bo-Jin, Song Chen, Sun Ming-Xia

Food and Machinery

The approved health food products in China were analyzed from the following five aspects: the number of approved products, the use of raw materials, the claim of health function, the distribution of dosage forms, and the index of signature ingredients. It was found that almost all Spirulina powder was the primary processed product, and the homogeneity was serious. Moreover, the characteristic components were different from those of β-carotene and phycocyanin specified in the record. Based on these problems, the healthy development of health food industry should be promoted by broadening the idea of product research and development, and then improve …

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Quality Evaluation Of 21 Kinds Of Non-Waxy Proso Millet Based On Principal Component Analysis, Zhao Ning, Xie Fei, Liang Ji-Bao, Feng Bai-Li, Du Shuang-Kui Oct 2022

Quality Evaluation Of 21 Kinds Of Non-Waxy Proso Millet Based On Principal Component Analysis, Zhao Ning, Xie Fei, Liang Ji-Bao, Feng Bai-Li, Du Shuang-Kui

Food and Machinery

Objective: This study aimed to evaluate the quality of different non-waxy proso millet varieties. Methods: 21 non-waxy proso millet varieties were selected as experimental materials, and their nutritional composition, pasting characteristics, cooking characteristics and texture characteristics were measured. The quality difference and index correlations between different non-waxy proso millet varieties were analyzed and compared. Principal component analysis was used to evaluate their quality. Results: The texture characteristics, crude fat content, setback, breakdown and final viscosity had great differences among the tested varieties, and the variation coefficient of pasting temperature and starch content was small, which were relatively …

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Study On The Stability Of Lipase Of Terminally Cyclized Thermomyces Lanuginosus, Song Wen, Wu Xia-Xia, Lou Hai-Wei, Fang Hui-Min Oct 2022

Study On The Stability Of Lipase Of Terminally Cyclized Thermomyces Lanuginosus, Song Wen, Wu Xia-Xia, Lou Hai-Wei, Fang Hui-Min

Food and Machinery

Objective: To obtain industrial standard lipase with high activity and stability, Butelase 1 ligase was used to connect the N- and C-termini of Thermomyces lanuginosus lipase (TLL), and then the protein characteristics, including heat stability, protease resistance, and enzymatic kinetics were analyzed. Methods: His6 affinity column was used to purify recombinant Butelase 1 (rButelase 1) and TLL (rTLL) from mammalian cells and E. co- li; rButelase 1 to was utilized connect the N- and C-termini of rTLL to generate circular rTLL (cTLL); the enzymatic activity, the heat stability, the protease resistance, the resistance to heat-induced precipitation, and …

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Screening Of Vanillin Converting Microorganism By Ferulic Acid And Optimization Of Fermentation Conditions, Li Li-Qun, Liu Qiang, Qiao Yue-Mei, Guo Chun-Sheng, Chai Ying, Hao Jie Oct 2022

Screening Of Vanillin Converting Microorganism By Ferulic Acid And Optimization Of Fermentation Conditions, Li Li-Qun, Liu Qiang, Qiao Yue-Mei, Guo Chun-Sheng, Chai Ying, Hao Jie

Food and Machinery

Objective: The aim of this study was to obtain vanillin converting microorganism by ferulic acid and optimize of fermentation conditions. Methods: The strains that can produce vanillin by ferulic acid which is screened form Daqu of Baijiu. The single factor experiment and orthogonal experiment were applied to optimize the fermentation conditions by shake flask fermentation. Results: The results showed that isolate B2-12 was identified as Bacillus subtilis and the high yield of vanillin was reached 34.5 mg/L under the conditions of liquid loading 44%, pH 10, 43 ℃ and shaking speed 160 r/min for 4 days fermentation. …

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Effects Of Coconut Powder On Thermomechanical Rheology Properties Of Wheat Flour, Li Ming, Sheng Zheng, Li Ze-Jun, Zhang Hai-Hua Oct 2022

Effects Of Coconut Powder On Thermomechanical Rheology Properties Of Wheat Flour, Li Ming, Sheng Zheng, Li Ze-Jun, Zhang Hai-Hua

Food and Machinery

Objective: In order to develop coconut utilization in wheat dough products, the effects of coconut powder on the thermomechanical rheology properties of wheat flour was studied. Methods: Freeze dried coconut flour and wheat flour were mixed in different proportions, then mixed flour was analyzed by GB/T 37511—2019 of Mixolab mixing instrument. Results: The changes of the properties of gluten and starch in wheat flour were analyzed and discussed respectively. It was found that coconut powder had great effects on the properties of both starch and gluten. As the increase of coconut powder, the water absorption of mixed …

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Evaluation On Uncertainty Of Advantame In Syrups Determined By High Performance Liquid Chromatography, Lei De-Qing, Zhong Fei-Fei, Zhou Jin-Sha, Liu Bo, Wang Zi-Qian, Zhou Ya-Min Oct 2022

Evaluation On Uncertainty Of Advantame In Syrups Determined By High Performance Liquid Chromatography, Lei De-Qing, Zhong Fei-Fei, Zhou Jin-Sha, Liu Bo, Wang Zi-Qian, Zhou Ya-Min

Food and Machinery

Objective: This study aimed to evaluate the uncertainty of determination by high performance liquid chromatography (HPLC) for the content of adevantame, a synthetic sweetener illegally added in syrup drugs. Methods: The sample is diluted with solvent, and the content of adevantame in the sample was determined by HPLC. Through the analysis of the factors affecting the uncertainty, such as the preparation of the reference solution, curve fitting, sample weighing, sample volumetric determination and instrument precision, the uncertainty was synthesized of each component, and the extended uncertainty is calculated. Results: The expanded uncertainty is 1.8 μg/mL. The influence …

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Simultaneous Determination Of 6 Flavonoids In Health Care Products By High Performance Liquid Chromatography, Wu Yi-Qi, Liang Zhi-Sen, Chen Yu-Zhen, Zhou Rui, Lin Xiao-Jun Oct 2022

Simultaneous Determination Of 6 Flavonoids In Health Care Products By High Performance Liquid Chromatography, Wu Yi-Qi, Liang Zhi-Sen, Chen Yu-Zhen, Zhou Rui, Lin Xiao-Jun

Food and Machinery

Objective: To establish a method for simultaneous determination of wogonoside, 4'-hydroxywogonin, norwogonin, baicalein, wogonin and chrysin in health care products by high performance liquid chromatography (HPLC). Methods: The samples were extracted with acetone, C18 solid phase extraction column was used for purification. The target compounds were determined by HPLC, quantified by matrix-matched standard curve method. Phenomenex Luna®C18(250 mm×4.6 mm, 5 μm)column was applied, mobile phase was acctonitrile-acetic acid, using gradient elution)at the flow rate of 1.0 mL/min. The temperature of column was 30 ℃ and the detection wavelength was set at 280 nm. …

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Determination Of Nine Mineral Elements In Infant Formula Milk Powder By Rapid Wet Digestion-Inductively Coupled Plasma Optical Emission Spectrosmetry, Chen Hui, Guo Xing-Xin, Peng Jia-Li, Tao Li-Ping, Wu Hai-Zi Oct 2022

Determination Of Nine Mineral Elements In Infant Formula Milk Powder By Rapid Wet Digestion-Inductively Coupled Plasma Optical Emission Spectrosmetry, Chen Hui, Guo Xing-Xin, Peng Jia-Li, Tao Li-Ping, Wu Hai-Zi

Food and Machinery

Objective: This study aimed to provide a rapid and efficient pretreatment method to detect the mineral elements in infant formula milk powder. Methods: Low-temperature rapid wet digestion (digesting temperature was 120 ℃ and digesting time was 90 min) combined with the inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to determine the concentrations of K, Na, Ca, Mg, P, Fe, Zn, Cu, and Mn in infant formula milk powder. Results: The linear correlation coefficients of standard curves for these nine elements were all over 0.999 9. This method was verified by the reference materials in infant …

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Hs-Spme-Gc-Ms Analysis Of Hexi Fragrant Vinegar With Different Vinegar Ages Comparison Of Aroma Components, Tan Yan-Li, Wu Yong, Liu Pin, Tan Xiao, Ma Cheng-Jin, Chen Wan-Fu, Yu Ji Oct 2022

Hs-Spme-Gc-Ms Analysis Of Hexi Fragrant Vinegar With Different Vinegar Ages Comparison Of Aroma Components, Tan Yan-Li, Wu Yong, Liu Pin, Tan Xiao, Ma Cheng-Jin, Chen Wan-Fu, Yu Ji

Food and Machinery

Objective: To investigate the types of volatile flavor components and their content differences in different vinegar ages of Hexi balsamic vinegar. Methods: Headspace solid-phase microextraction-gas chromatography mass spectrometry (HS-SPME-GC-MS) was used to analyze the volatile aroma components of five groups of Hexi balsamic vinegar of different years in 2017, 2018, 2019, 2020 and 2021. Results: A total of 117 volatile aroma components were detected in 5 groups of Hexi balsamic vinegar of different vinegar ages, 25 alcohol substances, 13 aldehydes, 14 acids, 24 esters and 41 other (ethers, phenols, alkane heterocyclic compounds, etc.) substances, the proportion of …

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Variation Sources Analysis And Monitoring Of Measurement System Of Food Packaging Paper Based On Hs Gc/Ms, Zhao Hai-Juan, Li Wen-Wei, Wagn Hui, Du Shan-Tao, Wang Hai-Yu, Li Chun-Yang Oct 2022

Variation Sources Analysis And Monitoring Of Measurement System Of Food Packaging Paper Based On Hs Gc/Ms, Zhao Hai-Juan, Li Wen-Wei, Wagn Hui, Du Shan-Tao, Wang Hai-Yu, Li Chun-Yang

Food and Machinery

Objective: To improve the accuracy and validity of the measurement data of solvent residues in food packaging paper. Methods: Taking the HS GC-MS measurement system as the research object, variation sources in the measurement process was separated by using the measurement system analysis, and the traditional control chart and EWMA control chart of repeatability and reproducibility were established respectively to effectively monitor the detection error of the measurement system. Results: ① HS GC/MS had high measurement accuracy, with GRR of about 9.76%, and the gauging ability of the measurement system was relatively good. ② Through the combination …

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Research On Food Parallel Robot Grasping Technology Based On Ipso-Bpnn-Pid Control, Huang Chong-Fu, Chang Yu, Liu Li-Chao Oct 2022

Research On Food Parallel Robot Grasping Technology Based On Ipso-Bpnn-Pid Control, Huang Chong-Fu, Chang Yu, Liu Li-Chao

Food and Machinery

Objective: In order to solve the problems of low efficiency and poor precision of parallel robot in food sorting. Methods: Based on the structure of the food sorting system, a moving target grasping strategy of delta robot based on Improved BP neural network and PID control is proposed. The improved particle swarm optimization algorithm is used to optimize the initial weight of BP neural network, and the optimized BP neural network is used to adjust the PID control parameters in real time. The performance of this method is analyzed by experiments, and its superiority is verified. Results: …

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Multi-Objective Structure Optimization Design Of Waist Turntable Of Palletizing Robot Based On Ahp-Fea Weight Distribution Method, He Ying, Wang Dan, Gao Han, Ma Chao, Chen Ye Oct 2022

Multi-Objective Structure Optimization Design Of Waist Turntable Of Palletizing Robot Based On Ahp-Fea Weight Distribution Method, He Ying, Wang Dan, Gao Han, Ma Chao, Chen Ye

Food and Machinery

Objective: Improve the dynamic performance of palletizing robot and reduce energy consumption. Methods: By static and dynamic analysis to determine to use minimal mass, maximizing the first natural frequency, minimizing the maximal stress and minimizing the maximal deformation as the optimization objectives, taking the structure parameters as design variables, the approximation models of objective functions and constraint functions were established by the Box-Behnken and the RSM. Based on the results of finite element analysis, an Analytic hierarchy process based on the results of finite element analysis was proposed. The process (AHP-FEA) was proposed to allocate the weight coefficients, …

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A New Tea Roasting Machine With Carbon-Based Coating As Heating Source, Qin Can-Ke, Chen Xing-Man, Zhang Jin-Yao, Wu Shen-Jiang, Li Dang-Juan Oct 2022

A New Tea Roasting Machine With Carbon-Based Coating As Heating Source, Qin Can-Ke, Chen Xing-Man, Zhang Jin-Yao, Wu Shen-Jiang, Li Dang-Juan

Food and Machinery

Objective: Solve the problems of uneven heating, heat loss and high power consumption of traditional tea frying device. Methods: Using carbon based high temperature heating coating material, a surface heating source was formed at the bottom of the glass-ceramic tea frying vessel by spraying. The corresponding tea roasting device, green removing device and conveying device were innovatively designed. Based on STM32, the circuit modules of temperature detection, temperature control and display, stir frying and rubbing tea switching were designed. Results: The maximum power consumption of the whole machine was 3 kW, and the size of the whole …

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Design And Implementation Of Self-Adaptive Head Cutting Machine For Catfish, Li Chen-Yang, Shan Hui-Yong, Zhang Cheng-Hao, Tian Yun-Chen, Wei Yong Oct 2022

Design And Implementation Of Self-Adaptive Head Cutting Machine For Catfish, Li Chen-Yang, Shan Hui-Yong, Zhang Cheng-Hao, Tian Yun-Chen, Wei Yong

Food and Machinery

Objective: In order to improve the mechanization and automation level of catfish head cutting. Methods: Through the study on the shape parameters and friction characteristics of catfish, the related parameters of catfish were obtained. Based on the machine vision technology to identify the assembly line fish, the end of the fish skull was defined as the fish head cutting track line, and an adaptive adjustment device was designed to adjust the position of the fish body, so that the disc cutter can avoid the skull for head removal. The GUI was designed in order to achieve visual control. …

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Study On Packaging Design Dimensions Of Fast-Moving Consumer Foods Under The Background Of Consumption Upgrading, Zhang Lu Oct 2022

Study On Packaging Design Dimensions Of Fast-Moving Consumer Foods Under The Background Of Consumption Upgrading, Zhang Lu

Food and Machinery

Consumption upgrading brings new challenges and opportunities to fast-moving consumer goods (FMCG) packaging design. With the help of successful FMCG packaging design cases in the market, the design dimension of FMCG packaging is summarized and analyzed to provide a new design approach for FMCG packaging in the aesthetic upgrading environment of consumption. Based on the analysis of market successful cases of fast-moving consumer food packaging design, the design content and methods are proposed, from the following aspects including the function, experience, subject, environmental protection, culture, digital analysis.

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Research On Wine Packaging Design Based On Chinese Character Modeling, Huang Shu-Jie Oct 2022

Research On Wine Packaging Design Based On Chinese Character Modeling, Huang Shu-Jie

Food and Machinery

Starting with the origin of Chinese characters and wine, the close relationship between Chinese characters and wine packaging were analyzed, and the characteristics of Chinese character wine packaging design were found out. Therefore, the Chinese character shaped wine packaging design methods were proposed from the two aspects of Chinese character "font" and "word meaning", which included direct display method, auxiliary integration method, deep expansion method, form meaning method and image construction method. Finally, four key points of Chinese character shaped wine packaging design were summarized.

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Microscopic Experimental Study On The Influence Of Different Cooling Rates On The Structure Of Apple Cells, Zhang Zhe, Wu Qiao-Yan, Chen Jia-Nan, Xu Yao, Ji Hong-Wei Oct 2022

Microscopic Experimental Study On The Influence Of Different Cooling Rates On The Structure Of Apple Cells, Zhang Zhe, Wu Qiao-Yan, Chen Jia-Nan, Xu Yao, Ji Hong-Wei

Food and Machinery

Objective: To find the most suitable cooling rate to meet people's requirements for apple storage quality at low temperature. Methods: The changes of apple tissue and cell structure were observed by low-temperature cold table equipment, and the changes of freezing temperature before and after cooling were compared and analyzed. Meanwhile, the changing trends of area, roundness, circumference, diameter, deformation, volume and internal pressure were compared and analyzed. Results: With the increase of cooling rate, the freezing temperature and freezing time of apple cells decreased gradually. The morphological parameters of apple cells changed with the increase of cooling …

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Prediction Of Safe Storage Period And Quality Of Fresh Yellow Peach Based On Correlation And Time Series Analysis, Zhou Hui-Juan, Gao Xiao-Feng, Ye Zheng-Wen, Feng Zi-Yao, Su Ming-Shen, Du Ji-Hong, Zhang Xia-Nan, Li Xiong-Wei, Zhang Ming-Hao Oct 2022

Prediction Of Safe Storage Period And Quality Of Fresh Yellow Peach Based On Correlation And Time Series Analysis, Zhou Hui-Juan, Gao Xiao-Feng, Ye Zheng-Wen, Feng Zi-Yao, Su Ming-Shen, Du Ji-Hong, Zhang Xia-Nan, Li Xiong-Wei, Zhang Ming-Hao

Food and Machinery

Objective: In order to study the correlation between fruit firmness, total soluble solids, red and green color, sensory scores of fresh yellow peaches, a prediction model of safe storage period of yellow peach was established to realize early warning and prediction of fruits quality. Methods: Solute Jinxiu peach was used as test material,firmness with skin, firmness without skin, fruit color difference,soluble solid contentand other indexes of the fruits in storage in three picking periods were measured, and sensory scores were made in four modules: fruit texture, color, flavor and aroma. The correlation analysis and time series analysis techniques …

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Optimization Of Extraction Process And Activity Study Of Antimicrobial Peptides From Pleurotus Tuber-Regium Mycelium, Zhang Shu-Hui, Luo Lu, Sun Xue-Yan, Ma Ai-Min Oct 2022

Optimization Of Extraction Process And Activity Study Of Antimicrobial Peptides From Pleurotus Tuber-Regium Mycelium, Zhang Shu-Hui, Luo Lu, Sun Xue-Yan, Ma Ai-Min

Food and Machinery

Objective: To improve the yield and antibacterial rate of antimicrobial peptides from Pleurotus tuber-regium mycelium (PTRM-AMPs). Methods: Taking the yield and the antibacterial rate of PTRM-AMPs against Staphylococcus aureus and Esche-richia coli as evaluation indexes, on the basis of protease screening, the extraction process of PTRM-AMPs was optimized, and the minimum inhibitory concentration of PTRM-AMPs was determined. Results: The optimum technological conditions for the preparation of PTRM-AMPs by alkaline protease hydrolysis were as follows: the enzymatic hydrolysis temperature was 39.5 ℃, the enzymatic hydrolysis time was 3.2 h, the pH value was 11.1, the solid-liquid ratio was …

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Optimization Of The Extraction Process Of Citronella Volatile Oil And Its Antioxidant And Antifungal Activities, Wang Jia-Li, Zhang Xiao-Nan, Xiong Ting-Ting, Niu Ya-Qian, Zhang Ying-Di, Xu Fu Oct 2022

Optimization Of The Extraction Process Of Citronella Volatile Oil And Its Antioxidant And Antifungal Activities, Wang Jia-Li, Zhang Xiao-Nan, Xiong Ting-Ting, Niu Ya-Qian, Zhang Ying-Di, Xu Fu

Food and Machinery

Objective: This study aimed to optimize the microwave-assisted water distillation extraction process of citronella volatile oil, and to evaluate the antioxidant properties and antifungal ability of citronella volatile oil. Methods: The Box-Behnken response surface method was used to analyze the influence of liquid-to-material ratio, microwave power and microwave time on the yield of volatile oil. Gas chromatography-mass spectrometry (GC-MS) analysis was used to identify the composition of the volatile oil. Thereafter, DPPH· and ABTS· scavenging methods and β-carotene bleaching experiment were utilized to evaluate the anti-oxidation ability of volatile oil. Perforation method and broth dilution method were used …

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Optimization On Extraction Process Of Resveratrol By Intermittent Ultrasonic Assisted Enzymatic Extraction From Grape Skin Residue, Zhang Qin, Tian Zi-Ming, Wang Jin-Zhu Oct 2022

Optimization On Extraction Process Of Resveratrol By Intermittent Ultrasonic Assisted Enzymatic Extraction From Grape Skin Residue, Zhang Qin, Tian Zi-Ming, Wang Jin-Zhu

Food and Machinery

Objective: In order to efficiently extract resveratrol and to maintain the good antioxidant capacity. Methods: Resveratrol was extracted from grape skin residue using intermittent ultrasonic assisted enzymatic extraction. The response surface method (RSM) was utilized to optimize the extraction process, and the antioxidant capacity of resveratrol were analyzed. Results: The experiment results indicated that under the condition of buffer solution pH of 5.0, cellulase dosage of 1.3% and enzymolysis temperature of 57 ℃, the resveratrol obtained better extraction effect after intermittent assisted treatment with 300 W ultrasonic waves for accumulatively 43 min, and the average yield could …

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Effects Of Yam Powder On The Quality Of Xylitol Chiffon Cake, Zhang Min-Hua, Zheng Zong-Ping, Chen Hong-Bin, Wang Bao-Bei, Ma Li-Na, Li Jin-Gui Oct 2022

Effects Of Yam Powder On The Quality Of Xylitol Chiffon Cake, Zhang Min-Hua, Zheng Zong-Ping, Chen Hong-Bin, Wang Bao-Bei, Ma Li-Na, Li Jin-Gui

Food and Machinery

Objective: The yam powder was applicated and added in xylitol chiffon cake to investigate its effects on the quality of cake. Methods: In the process of preparing xylitol yam chiffon cake,the specific volume, relative density of batter, moisture content, color and texture of cake were taken as the investigation indexes to study the effects of different proportions of yam powder (10%, 20%, 30%, 40%, 50%) on thequality of cake. Results: The specific volume of cake decreased, whereas the relative density and moisture content of batter increased with the increasing amount of yam powder. On the other hand, …

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Effects Of Superfine Adzuki Bean Flour On Physicochemical Properties Of Flour And Development Of Fresh And Wet Noodles, Yang Yong-Hong Oct 2022

Effects Of Superfine Adzuki Bean Flour On Physicochemical Properties Of Flour And Development Of Fresh And Wet Noodles, Yang Yong-Hong

Food and Machinery

Objective: To study the effect of superfine adzuki bean flouron the physicochemical properties of flour and quality of fresh and wet noodles, and explore the appropriate amount of superfine adzuki bean flour added in fresh wet noodles. Methods: The farinograph, extensograph, wet gluten meter, falling number meter and flour whiteness meter were used to determine the influence of superfine adzuki bean flour on the physical and chemical indexes of flour, and the texture analyzer was used to determine the texture parameters of fresh wet noodles. Sensory method was used to evaluate the effects of superfine adzuki bean flour …

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Process Optimization Of Polyunsaturated Fatty Acid Oil Microcapsule, Gui Zheng-Jie, Xiong You-Peng, Huang Qi-Dong, Zhou Xu, Yang Jie Oct 2022

Process Optimization Of Polyunsaturated Fatty Acid Oil Microcapsule, Gui Zheng-Jie, Xiong You-Peng, Huang Qi-Dong, Zhou Xu, Yang Jie

Food and Machinery

Objective: To meet the market demand, high concentration PUFA oil microcapsules were developed. Methods: The microencapsulated oil was prepared by spray drying method with β-cyclodextrin /gelatin as a composite wall material and high content polyunsaturated fatty acid oil sunflower seed oil as a core material, and the preparation process parameters of oil microcapsules were optimized by single factor experiment and response surface experiment. Results: The best technological conditions of oil microcapsule were solid content of 25.2%, and the mass ratio of composite wall material β-cyclodextrin: gelatin was 6.7∶1. The dosage of emulsifier was 1%, and …

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Effect Of Compound Thickener On The Quality Of Red Jujube And Aloe Low-Sugar Jam, Lin Zhi-Rong Oct 2022

Effect Of Compound Thickener On The Quality Of Red Jujube And Aloe Low-Sugar Jam, Lin Zhi-Rong

Food and Machinery

Objective: This study aimed to solve the poor viscosity of red jujube and aloe low-sugar jam. Methods: Using CMC-Na and AGAR as thickeners, the effects of compound thickeners on texture properties and sensory quality of red jujube and aloe low-sugar jam under different storage time were investigated. The technological parameters of jam were optimized by orthogonal test and rheological test. Results: When the ratio of CMC-Na and AGAR in the compound thickener was 7∶3, no significant difference in hardness and viscosity were found between fresh jam and preserved 90 d jam, and the jam was delicate and …

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Preparation, Selenium Content And Stability Of Antihypertensive Peptides From Selenium-Enriched Moringa Oleifera Seed Protein By Enzymatic Hydrolysis, Chen Bing-Bing, Yang Yi, Li Jia-Yi, Jin Chang-Yan, Cheng Bin-Pei, Deng Yong-Qi, Lin Bi-Min, Liang Dong, Tang De-Jian, Meng Li, Miao Jian-Yin Oct 2022

Preparation, Selenium Content And Stability Of Antihypertensive Peptides From Selenium-Enriched Moringa Oleifera Seed Protein By Enzymatic Hydrolysis, Chen Bing-Bing, Yang Yi, Li Jia-Yi, Jin Chang-Yan, Cheng Bin-Pei, Deng Yong-Qi, Lin Bi-Min, Liang Dong, Tang De-Jian, Meng Li, Miao Jian-Yin

Food and Machinery

Objective: To develop selenium-enriched (Se-enriched) Moringa oleifera seed protein resources. Methods: Using Se-enriched Moringa oleifera seed protein powder as raw material, the enzymatic hydrolysis conditions of Se-enriched Moringa oleifera seed protein antihypertensive peptides from Se-enriched Moringa oleifera seed protein were obtained by single factor and response surface optimization, and the ACE inhibitory activity, Se content and stability of the optimal enzymatic hydrolysate were analyzed. Results: The optimal enzymatic hydrolysis conditions of Se-enriched Moringa oleifera were as follows: enzymatic hydrolysis time 3 h, temperature 34 ℃, pH 8, concentration of substrate 7%, enzyme to substrate ratio 0.3%. Under …

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Advance Of Progress On Emulsion Properties In Aqueous Enzymatic Extraction Of Peanut Oil, Zhao Yu-Hui, Chen Fu-Sheng, Liu Chen, Gao Yu-Hang Oct 2022

Advance Of Progress On Emulsion Properties In Aqueous Enzymatic Extraction Of Peanut Oil, Zhao Yu-Hui, Chen Fu-Sheng, Liu Chen, Gao Yu-Hang

Food and Machinery

In this review, the mechanism of emulsion formation and the influence of physical, chemical, biological and other environmental factors on its stability were summarized, and the demulsification method in the industrial application of hydroenzymatic extraction of peanut oil was prospected.

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Research Progress On The Functional Components Of Grifola Frondosa And Their Biological Activities, Xiong Wen-Yu, He Jun-Qiang, Dai Wan-Zhen, Wu Yu-Yan, Liu Bin Oct 2022

Research Progress On The Functional Components Of Grifola Frondosa And Their Biological Activities, Xiong Wen-Yu, He Jun-Qiang, Dai Wan-Zhen, Wu Yu-Yan, Liu Bin

Food and Machinery

The main functional components and biological activities of Grifola frondosa were reviewed, and the existing problems and future research directions were also discussed.

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Anti Oxidant Capacity And Immuno Enhancing Act Ivity Oflycium Bar Barum Protoplasm, Yang Lu, Zhao Ran, Wu Zhen-Huai, Yuji An-Qiang, Yaang Jia-Mei Oct 2022

Anti Oxidant Capacity And Immuno Enhancing Act Ivity Oflycium Bar Barum Protoplasm, Yang Lu, Zhao Ran, Wu Zhen-Huai, Yuji An-Qiang, Yaang Jia-Mei

Food and Machinery

Objective：This study focused on the antioxidant andimmune enhancing effects of L.bar barumpu ree.Methods：Theantioxidant capacity of L.bar barum puree was measured byes-tab lishing an acute liver injury model.The immune activity of L.bar barum protoplasmwas evaluated by measuring the index ofimmune organs， the content of serum hemolysin and the degreeof plantar thickening.Results：Both low and medium doses of L.bar barum puree could significantly increase the content of glut a-thione peroxidase(GSH PX) in serum(P＜0.05， P＜0.01) andglutathione(GSH) in liver tissue(P＜0.05) ， and significantlydecrease the content ofprotein carbonyl in liver tissue ofmicewith acute alcoholic liver injury(P＜0.05， P＜0.01)andthecontent of malondialdehyde(MDA) (P＜0.05， P＜0.01) …

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Effects Of Lactic Acid Bacteria Ferment Ated Pollenson The Inhibition Of A-Glucosidase, Luo Yue-Peng, Yang Yuan-Fan, Yu Yang-Jun, He Jun-Zhu, Wu Ling Oct 2022

Effects Of Lactic Acid Bacteria Ferment Ated Pollenson The Inhibition Of A-Glucosidase, Luo Yue-Peng, Yang Yuan-Fan, Yu Yang-Jun, He Jun-Zhu, Wu Ling

Food and Machinery

Objective：This study focus on improving the a-glucosi-dase inhibition rate of Camellia pollens.Methods：Usinga-gluco-sida se inhibition rate as the index， the response surface method-ology was used to optimize the effects of lactic acid bacteria in ocu-lation amount， fermentation temperature and fermentation timeon the results of Camellia pollens fermentation.Results：It wasfound that the number of lactic acid bacteria inoculated had thegreatest effect on α- glucosidase inhibition， followed by ferment a-tion temperature.The optimized fermentation conditions of Ca-melli a pollens were 0.9%lactic acid bacteria inoculation at 37℃for 3 days.Under the control of the optimized conditions， the in-hi bition rate of αglucosidase …

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