Study On Antioxidant Properties Of Glycosylated Products Of Wheat Germ Protein,
2023
Dezhou Vocational and Technical College, Dezhou, Shandong 253034, China
Study On Antioxidant Properties Of Glycosylated Products Of Wheat Germ Protein, Niu Qiu-Yun
Food and Machinery
Objective: This study aimed to investigate the antioxidant properties of wheat germ protein glycosylation product. Methods: The glycation product (WGP-G) of wheat germ protein (WGP) and glucose was prepared by ultrasonic assisted moist heat method. Different ultrasonic time (10, 20, 30, 40, 50 and 60 min) and reaction temperature (70, 80 and 90 ℃) were measured. The browning degree, grafting degree, reducing power, hydroxyl radical scavenging capacity, superoxide anion radical scavenging capacity, DPPH radical scavenging capacity and ABTS+ radical scavenging capacity of WGP-G at 90 ℃ were evaluated comprehensively. Results: The browning degree of WGP-G increased with the increase of …
Changes Of Biogenic Amine Concentrations In Hard Cheese Made From Refrigerated Yak's Milk During Ripening,
2023
College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China; Functional Dairy Product Engineering Laboratory of Gansu Province, Lanzhou, Gansu 730070, China
Changes Of Biogenic Amine Concentrations In Hard Cheese Made From Refrigerated Yak's Milk During Ripening, Song Xue-Mei, Qiu Ting, Liu Yu-Ying, Zyang Yan, Zhang Wei-Bing
Food and Machinery
Objective: The research aimed to reveal the changes of biogenic amines in cheese made from different refrigerated milk during ripening and evaluate its quality safety. Methods: The hard cheese made from yak milk refrigerated for 24, 48 and 72 hours was taken as the research object, and the biogenic amines in cheese during ripening were determined by high performance liquid chromatography. Results: During the ripening period from 0 to 6 months, the content of biogenic amine in hard cheese made from different refrigerated yak milk showed an increasing trend. When the cold storage time of yak milk was extended from …
Optimization Of Glycosylation Process Of Tilapia Myofibrillar Protein,
2023
College of Light Industry and Food Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China
Optimization Of Glycosylation Process Of Tilapia Myofibrillar Protein, Lin Ze-Qian, Bai Wei-Dong, Liu Qiao-Yu, Zeng Xiao-Fang, Chen Hai-Guang, Huang Zhen
Food and Machinery
Objective: This study aimed to improve the emulsifying and processing properties of tilapia myofibrillar protein. Methods: The tilapia muscle fibrin (TMP) was modified with galactose oligosaccharide (GOS). The effects of TMP/GOS concentrations, pH values, temperature, time and other technological conditions on the grafting degree, solubility, emulsifying activity and emulsifying stability of TMP-GOS conjugation were investigated. The preparation process of TMP-GOS conjugate was optimized using emulsion stability as response surface. The functional properties of TMP-GOS conjugation were analyzed and verified by endogenous fluorescence spectroscopy, surface hydrophobicity, Fourier infrared spectroscopy and peakering emulsion microscopy. Results: The optimal process conditions were as follows: …
Pollution Status And Research Progress On The Detection Technology Of Alternaria Mycotoxins In Foods,
2023
Shanghai Center of Agri-products Quality and Safety, Shanghai 201708, China
Pollution Status And Research Progress On The Detection Technology Of Alternaria Mycotoxins In Foods, Wang Xia, Feng Dong-Sheng, Tong Jin-Rong, Gao Meng-Feng, Zhang Wei-Yi
Food and Machinery
Alternaria mycotoxins are the secondary metabolites of Alternaria species, which have obvious toxicity （mutagenicity, teratogenicity and carcinogenicity, etc） to humans and animals. Alternariol （AOH）, alternariol monomethyl ether （AME）, alternuene （ALT）, tenuazonic acid （TeA） and tenoxin （TEN） are the most studied at present. Alternaria mycotoxins was reported in apples, orange, tomatoes, corns and other agricultural products. Eating these foods contaminated by Alternaria mycotoxins will cause serious harm to human health. In this paper, the pollution status and the detection technology of Alternaria mycotoxins were summarized, and the future research direction of Alternaria mycotoxins was prospected. The purpose was to provide …
Pentadesma Butyracea In Ghana – Indigenous Knowledge, Uses, And Seed Characterization,
2023
Kwame Nkrumah University of Science and Technology
Pentadesma Butyracea In Ghana – Indigenous Knowledge, Uses, And Seed Characterization, Josephine Akuba Timtey, Francis Alemawor, William Otoo Ellis, Nana Baah Pepra-Ameyaw, Jacob K. Agbenorhevi
Food Science Faculty Articles and Research
This study ascertained the indigenous knowledge and uses of Pentadesma butyracea plant through a focus group study. The proximate, mineral, antinutritional compositions, and antioxidant activity of P. butyracea seed were also determined using standard analytical methods. The results of the focus group study showed that P. butyracea is essentially used for its butter which is prepared by women processors who hand down the skill of butter processing to their children. The butter is used for cooking, frying, and preparing traditional delicacies, and the plant is known to possess some therapeutic potential. The seed recorded the following mean proximate values: fat …
Effects Of Egg Yolk/Egg White On The Aggregation Characteristics Of Second-Grade Wheat Flour,
2023
School of Biological Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China
Effects Of Egg Yolk/Egg White On The Aggregation Characteristics Of Second-Grade Wheat Flour, Wang Yong-Qing, Wang Jia-Lu, Li Hai-Feng, Fan Pei, Jia Feng
Food and Machinery
Objective: Egg yolk and egg white were added to wheat flour to provide data support for the processing and improvement of characteristic flour food. Methods: The present study aims to disclose the influence of egg yolk and white on the aggregation characteristics of gluten in wheat flour using a special gluten aggregation instrument, as well as second-grade wheat flour and eggs as materials. Moreover, the dough microstructure and starch particle size during the aggregation process were also analyzed. Results: The results showed that BEM dropped 9.5 BU （i.e., 19.39%） with 5 mL egg yolk added. However, the BEM increased by …
Study On Properties Of The Texture And Fermentation Rheology Of Coconut Flour-Wheat Flour Mixed Dough,
2023
Hospitality Institute of Sanya, Sanya, Hainan 572000, China
Study On Properties Of The Texture And Fermentation Rheology Of Coconut Flour-Wheat Flour Mixed Dough, Li Ming, Sheng Zheng, Yang Ya-Wen, Wu Zi-Jian, Zhang Hai-Hua
Food and Machinery
Objective: To develop fermented baked goods containing coconut powder. Methods: The texture and fermentation rheological properties of coconut flour-wheat flour dough were measured by full texture compression test of TA.XT Plus C physical property tester and F4 Chopin fermentation rheometer. Results: The addition of coconut flour significantly improved dough hardness, chewiness and gumminess. However, the effects on springiness and adhesiveness were different. The dough with 3% coconut flour showed a decrease in dough fermentation performance, such as being harder, delayed fermentation, and small in volume, while the dough with 1% and 5% coconut flour showed a high degree of collapse, …
Screening And Identification Of Extracellular Polysaccharide-Producing Lactic Acid Bacteria,
2023
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
Screening And Identification Of Extracellular Polysaccharide-Producing Lactic Acid Bacteria, Chen Jing, Zhou Jia-Hao, Mao Qi-Qi, Tang Xia, Liu Cheng-Guo, Zhou Hui
Food and Machinery
Objective: To screen lactic acid bacteria strains with strong ability to produce extracellular polysaccharide. Methods: Forty strains of lactic acid bacteria isolated and preserved in the laboratory were selected, and the commercial strain L. rhamnosus GG （LGG） was used as the positive control strain. The strains with high extracellular polysaccharide yield were screened by colony drawing method and phenol-sulfuric acid method, and their stress resistance, safety and antibiotic sensitivity were tested in vitro. The phenotypic characteristics and species identification of the finally obtained strains were analyzed. Results: After primary screening and secondary screening of 40 strains of lactic acid bacteria, …
Changes Of Methanol Content During Pectinase Clarification Of Honey Melon Juice,
2023
College of Materials and Chemical Engineering, Kaifeng University, Kaifeng, Henan 475004, China; Kaifeng Fermented Food Engineering Technology Research Center, Kaifeng, Henan 475004, China; Kaifeng Key Laboratory of Fermented Food, Kaifeng, Henan 475004, China
Changes Of Methanol Content During Pectinase Clarification Of Honey Melon Juice, Hou Yan-Xi, Wang Ming-Rui, Li Xin, Jiao Chan
Food and Machinery
Objective: The relationship between the clarification effect and methanol content of honeydew-melon juice was investigated during the optimization of pectinase treatment process. Methods: The effects of pectinase addition, pH value, reaction time, and processing temperature on the clarity and methanol content of honeydew-melon juice were investigated through single factor and orthogonal experiments, by using the transmittance and methanol content as indicators. Results: The order of influencing factors on clarity and methanol content of juice was pH value > pectinase addition > action time > temperature. The optimal conditions for producing honeydew-melon juice with high clarity and high methanol concentration were 0.04 g/100 mL …
Study On Efficacy And Performance Of Artemisia Argyi Extracts,
2023
School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China;Engineering Research Center of Perfume & Aroma and Cosmetics, Ministry of Education, Shanghai 201418, China
Study On Efficacy And Performance Of Artemisia Argyi Extracts, Zhang Wan-Ping, Zhang Zhi-Yuan, Zhang Dong-Mei, Zhang Qian-Jie, Jiang Wen
Food and Machinery
Objective: By analyzing bacteriostasis and efficacy, the possibility of Artemisia argyi extract to be a plant extract preservative is clarified. It provides a message for the development of natural non-irritating plant extract preservative. Methods: Water and ethanol extracts of A. argyi were prepared. The content of its main active components was determined. Its inhibitory effect and stability on Escherichia coli and Staphylococcus aureus were analyzed. Antioxidant activity, ultraviolet absorption capacity and security were also discussed. Results: The ethanol extract of A. argyi had a significant inhibitory effect on the two kinds of bacteria, which was related to the content of …
Purity Determination Of Glutamic Acid By Dsc,
2023
Technical Center of Shijiazhuang Customs District, Shijiazhuang, Hebei 050051, China
Purity Determination Of Glutamic Acid By Dsc, Ma Ying-Nan, Li Yu-Pu, Liu Bei-Lei, Ma Yu-Song, Yao Chun-Yi, Hou Lan-Jing
Food and Machinery
Objective: The feasibility of the determination of glutamate purity was studied by differential scanning calorimetry. Methods: Indium and Zinc were used to correct the instrument parameters. Under the conditions of nitrogen atmosphere and flow rate of 50 mL/min, the effects of sample particle size, experimental atmosphere, heating rate and sample quality on the DSC measurement results were investigated, and the glutamic acid purity was determined under the optimal conditions. The determination results were compared between DSC and China Pharmacopeia 2015 titration. Results: Under the condition of weighing 3 mg and heating rate at 40 ℃/min, the purity of glutamic acid …
Development Of A Matrix Reference Material For Amoxicillin In Lyophilized Bovine Milk,
2023
College of Veterinary Medicine, Jiangsu Agri-animal Husbandry Vocational College, Taizhou, Jiangsu 225300, China
Development Of A Matrix Reference Material For Amoxicillin In Lyophilized Bovine Milk, Liu Tian-He, Wei Ning, Wu Cai-Hong, Zhang Yu, Liu Qiu-Hui
Food and Machinery
Objective： This study aimed to provide the basis of quantity traceability for the analysis of amoxicillin residues in milk. At the same time, it can also provide quantity standards for ensuring the effective implementation of amoxicillin monitoring in milk and combating the abuse of amoxicillin in the country and regions. Methods： Two healthy middle-class dairy cows were injected with amoxicillin intramuscularly. After the natural metabolism of the drug for a period of time, the milk containing the target drug amoxicillin was collected and made into milk matrix reference material containing amoxicillin by vacuum freeze-drying technology. The uniformity test, stability test, …
Qualitative And Quantitative Detection Of Camellia Oil Adulteration Based On Electronic Nose,
2023
School of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Qualitative And Quantitative Detection Of Camellia Oil Adulteration Based On Electronic Nose, Jiang Han, Li Da-Peng, Wen Tao, Yang Gan, Gong Zhong-Liang
Food and Machinery
Objective: This study aims to realize the adulteration detection of camellia oil mixed with rapeseed oil, soybean oil and corn oil. Methods: The electronic nose detection platform was used for the adulteration detection of camellia oil mixed with different proportion of rapeseed oil, soybean oil and corn oil. Firstly, the linear discriminant analysis （LDA） and support vector machine （SVM） were used for the qualitative identification of camellia oil adulteration. Then multilayer perceptron （MLP） and partial least squares regression （PLSR） were used to establish quantitative prediction models for camellia oil adulteration. Results: The accuracy of SVM for qualitative authentication was higher …
Effects Of Screw End Face Structural Parameters On Polylactic Acid Flow Field In Meshing Counter Rotating Twin Screw Extruder,
2023
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China; Plastic Beijing Municipal Key Laboratory of Health and Safety Quality Eualuation Technology, Beijing 100048, China
Effects Of Screw End Face Structural Parameters On Polylactic Acid Flow Field In Meshing Counter Rotating Twin Screw Extruder, Zhang Yi-Wei, Huang Zhi-Gang, Shang Jia-Wei, Liu Zhong-Yao, Yang Ya-Nan
Food and Machinery
Objective: To investigate the effect of the screw configuration on the polylactic acid flow field on the structural parameters of the screw on the end face of the screw in the meshing counter rotating twin screw extruder. Methods: The theoretical model of the heterodirectional double-ended threaded element was established by Solidworks software and the geometry of the threaded element after adjusting the structural parameters in two different ways. The established three-dimensional model was imported into Gambit software for meshing, and then Polyflow software was applied to the flow field simulation calculation. Finally, the flow field distribution results were extracted by …
Grab Control Method Of Food Sorting Robot Based On 3d Model,
2023
Hunan College of Information, Changsha, Hunan 410012, China
Grab Control Method Of Food Sorting Robot Based On 3d Model, Xiao Yao-Xing, Liu Li-Xin, Hu Liu, Lu Yan-Zhi
Food and Machinery
Objective: To solve the problems of poor accuracy and low sorting efficiency of the existing string fruits in robot sorting. Methods: Based on the structure of the high-speed parallel food sorting system, the improved SURF algorithm and the improved RANSAC algorithm were combined to locate the grab points of the food sorting robot, and a three-dimensional grab model was established to realize the automatic and stable grab of string fruits. Taking grapes as an example, the superiority and accuracy of the proposed method were verified by experiments. Results: Compared with the conventional method, the proposed method improved the average capture …
Preparation And Properties Of Polysaccharide-Based Broad-Spectrum Antibacterial Films,
2023
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China
Preparation And Properties Of Polysaccharide-Based Broad-Spectrum Antibacterial Films, Li Zhi-Ming, Wen Chang-Dian, Wei Tian-Tian, Song Xue-Jian, Zhang Dong-Jie
Food and Machinery
Objective: This study aimed to develop polysaccharide-based composite antibacterial films with excellent antibacterial and physicochemical properties to effectively improve the shelf life of food. Methods: Carrageenan, agar, konjac gum and pectin were used as film-forming substrates and natamycin and nano-MgO were used as antibacterialagents to investigate the effects of adding antimicrobial agents on the physical, mechanical and antibacterial properties of the films and the preservation of grapes. Results: After the addition of antibacterial agents, the film thickness, tensile strength and haze increased, air permeability increased and elongation at break decreased, water solubility, swelling and moisture permeability decreased, light transmission and …
Performance Analysis Of Buffer And Vibration Isolation Lining For Red Wine Transport Packaging,
2023
Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunan 650500, China
Performance Analysis Of Buffer And Vibration Isolation Lining For Red Wine Transport Packaging, Wang Cheng-Wei, Gu Wen-Juan, Liu Mei-Hong, Li Shu-Hao
Food and Machinery
Objective: In this study, the finite element simulation was integrated into random vibration experiment to provide a new way of thinking about transportation packaging. Methods: The red wine inner packaging spacer, made of three different cushioning materials, was used as the research object, and the vibration response was studied through random vibration experiment. Then the finite element simulation was used to analyze the correlation between the experiment and the simulation results. Results: The results of random vibration test were highly consistent with the results of finite element simulation, and the finite element simulation was less material- and time-consuming, compared with …
Effects Of Different Microwave Drying Conditions On Drying Characteristics And Quality Of Preserved Apricots,
2023
College of Agriculture and Forestry, Longdong University, Qingyang, Gansu 745000, China
Effects Of Different Microwave Drying Conditions On Drying Characteristics And Quality Of Preserved Apricots, Zhao Hong-Xia, Wang Ying-Qiang, Ma Yu-He, Liu Ye-Rong, Wen Jian-Hua, Zhang Bian-Fei
Food and Machinery
Objective: This study aimed to improve the drying efficiency and product quality of preserved apricot. Methods: The preserved apricots were dried using the rotary microwave oven (RMD) and the microwave coupled with convection dryer (MCD). The effect of microwave power, microwave emission mode, cutting and material movement on drying characteristics, the scorching rate, color and sensory quality were investigated and compared with traditional hot air drying (HD). Results: Compared with 1 040 min (16 pieces) and 840 min (48 pieces) of HD, the drying time was significantly shortened by microwave drying, ranging from 40 to 400 min. The drying time …
Difference Of Odd-Carbon Fatty Acid Composition In Three Dendrobium Species,
2023
School of Biological Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
Difference Of Odd-Carbon Fatty Acid Composition In Three Dendrobium Species, Feng Shi-Qi, Lu An-Jing, Yang Miao, Feng Di-Na, He Yu-Qi, Xue Song
Food and Machinery
Objective： The fatty acid composition and content of three kinds of Dendrobium were studied in order to provide reference for the development of dendrobium efficacy. Methods： The fatty acids compositions of Dendrobium nobile, Dendrobium officinale and Dendrobium chrysotoxum from different regions were systematically quantified by gas chromatography-mass spectrometry （GC-MS）, and a series of Odd-carbon fatty acids （OCFA） containing 15～23 carbons were found in all dendrobiums. Results： The results showed that the OCFA accounted for more than 8% of the total fatty acids. The relative abundances of OCFA from high to low were C15:0, C17:0, C23:0 …
Effects Of Processing On Volatile Components In Different Parts Of The Flowers From Camellia Liberofilamenta,
2023
Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guizhou, Guiyang 550006, China
Effects Of Processing On Volatile Components In Different Parts Of The Flowers From Camellia Liberofilamenta, Liu Zhong-Ying, Fang Shi-Mao, Li Qin, Long Hai-Yan, Deng Lun-Xiu
Food and Machinery
Objective: The effect of processing on the volatile fractions of different parts of the flowers of Camellia liberofilamenta was investigated. Methods: Different parts of the whole flowers, petals and stamens of C. liberofilamenta were processed by spreading, microwave killing and drying to make dry samples, separately, and then the effect of processing on volatile components extracted from different parts of the flowers. Results: A total of 73 kinds of volatile substances were identified, which were mainly alcohols, aldehydes, ketones, esters, acids, terpenes and others, and alcohols and aldehydes were the main volatile compounds. In terms of the type and quantity …
