Optimization Of Anthocyanin Copigmentation Formula Of Purple Corn And Its Effect On The Quality Of Purple Corn,
2024
Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China;College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
Optimization Of Anthocyanin Copigmentation Formula Of Purple Corn And Its Effect On The Quality Of Purple Corn, Pang Wenqian, Yu Rui, Li Dajing, Liu Chunju, Bai Bing
Food and Machinery
Objective: This study aimed to explore the copigmentation formula of purple corn anthocyanins. Methods: In this study, fructose, tannic acid, and pectin were used as co-pigmentation. The response surface method was used to optimize the co-pigmentation formula of purple corn anthocyanins, and the untreated purple corn was used as a control test. The anthocyanin components, color, texture, taste and antioxidant activity (DPPH free radical scavenging ability, ABTS free radical scavenging ability, and FRAP iron ion reducing ability) of purple corn after different treatments were determined. Results: 19% fructose, 0.07% tannic acid, and 1.9% pectin had the best copigmentation effect. Compared …
Study On Preparation, Characterization And Stability Of Β-Cyclodextrin Inclusion Compound Of Foeniculum Vulgare Volatile Oil,
2024
College of Life Sciences and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
Study On Preparation, Characterization And Stability Of Β-Cyclodextrin Inclusion Compound Of Foeniculum Vulgare Volatile Oil, Zhang Yumeng, Xu Fang, Yao Yuhan, Li Chenyang, Zhao Jun
Food and Machinery
Objective: To Prepared of β-Cyclodextrin inclusion complex with Foeniculum vulgare（fennel） volatile ooil and study on its sstructural characterization and stability. Methods: Based on the inclusion rate, the inclusion yield and the content of trans-anethole in the inclusion compound, the comprehensive evaluation index was established, and the effects of the ratio of fennel volatile oil to β-cyclodextrin, inclusion temperature and inclusion time on it were explored. The preparation process was optimized by orthogonal test. It was characterized by scanning electron microscopy, thin layer chromatography, Fourier infrared spectroscopy and differential scanning calorimetry. Finally, the stability of the inclusion compound was …
Effects Of Drying Methods On The Quality And Volatile Flavor Compounds Of Oil Tea Powder,
2024
Guangxi Key Laboratory of Health Care Food Science and Technology, Hezhou University, Hezhou, Guangxi 542899, China
Effects Of Drying Methods On The Quality And Volatile Flavor Compounds Of Oil Tea Powder, Li Guanli, Wu Qiuyue, Chen Xixia, Wu Shujie, Duan Qiuxia, Li Xiaochun, Luo Yanghe
Food and Machinery
Objective: This study aimed to explore suitable drying methods for oil tea powder, making it easier for oil tea consumption and storage. Methods: Spray drying, vacuum freeze drying and vacuum drying were used to dry oil tea soup, and the quality (moisture content, sensory evaluation and color) and volatile substances of dried oil tea powder were evaluated. Results: The sensory score of vacuum freeze-drying oil tea powder was the highest (93), the water content was the lowest (3.78%), and the color was better（ΔE value 49.74). 104 volatile substances were identified from three drying methods of oil tea powder using …
Research Progress On The Effects Of Processing Methods On Gluten Protein Structure And Properties,
2024
College of Food & Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China;National Teaching Demonstration Center for Food Processing and Safety, Luoyang, Henan 471023, China
Research Progress On The Effects Of Processing Methods On Gluten Protein Structure And Properties, Cui Guoting, Wang Duan, Guo Jinying, Ren Guoyan
Food and Machinery
Steamed bread, noodles, deep-fried dough sticks and other noodle foods are an important part of our diet, and gluten protein is an important component of noodle foods. Common food processing techniques used to prepare noodles, including heating, freezing, mechanical processing, fermentation, and electric field treatment, alter the hydrophobic disulfide bond of the protein, denature and aggregate the protein, and cause other intricate physical and chemical changes, all of which have an impact on the texture and flavor of the finished noodle product. This paper mainly introduces the current research status of the influence of processing methods such as heating, freezing, …
Research Progress On Extraction, Physiological Function And Application Of Pectin,
2024
College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
Research Progress On Extraction, Physiological Function And Application Of Pectin, Fei Congxuan, Fu Meiling, Zhang Di, Li Dandan, Xiu Jianhua
Food and Machinery
Pectin is a kind of natural polysaccharide polymer, which is an important part of the cell wall of higher plants. It has physiological functions such as cholesterol-lowering, anti-tumor, anti-oxidation and hypoglycemic, and beneficial to intestinal health. In this review, pectin extraction methods and their advantages and disadvantages in recent years were summarized, and the yield, galacturonic acid content and esterification degree of pectin extracted from different sources and methods were compared and analyzed. The physiological function of pectin and its application in various aspects were also introduced, and the future development direction was prospected.
Detection Of Aminoglycoside Antibiotic Residues In Pork By Quechers Method Combined With Sers Technique,
2024
Yangzhou University School of Medicine, Yangzhou, Jiangsu 225001, China;Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, China
Detection Of Aminoglycoside Antibiotic Residues In Pork By Quechers Method Combined With Sers Technique, Yang Haifan, Ding Li, Xu Miaowen, Shen Kang, Wang Xubo
Food and Machinery
Objective: To achieve rapid, quantitative and high-throughput detection of aminoglycoside antibiotic residues in pork. Methods: Square-array aligned SERS substrates based on Au nanoflowers （AuNFs） were prepared using PP synthetic paper as a substrate. Pork samples were pre-treated by QuEChERs method and subjected to SRES. Results: Using 4-mercaptobenzoic acid as the SERS probe molecule, the substrate exhibited good homogeneity, SERS enhancement effect, reproducibility and stability. the SERS signal intensities at the characteristic peaks at 475, 619 cm-1 showed good linear relationships with the logarithms of the concentrations of gentamicin sulphate and neomycin sulphate, respectively （R2 of 0.991 6 …
Structural Characteristics And Hypoglycemic Activity Of Polysaccharides From Different Parts Of Wampee,
2024
College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
Structural Characteristics And Hypoglycemic Activity Of Polysaccharides From Different Parts Of Wampee, He Junye, Liu Cheng, Yu Chongyang, Sun Pengpeng, Ren Yuanyuan
Food and Machinery
Objective: This study aimed to develop antioxidant products and anti-diabetes drugs of wampee. The study aimed to research the structural characteristics, anti-oxidation and hypoglycemic properties in vitro of polysaccharides from different parts of wampee. Methods: The structural properties, in vitro antioxidant and hypoglycemic activities of polysaccharides from the fruit, peel and seeds of wampee (CWP-F, CWP-P, and CWP-S) were analyzed and compared from the aspects of chemical composition, molecular weight, monosaccharide composition, appearance, DPPH free radical scavenging rate and α-amylase inhibition rate. Results: CWP-F had the highest molecular weight and was mainly composed of galactose and arabinose, CWP-P was mainly …
Research Progress On The Mechanism Of Food-Derived Antihypertensive Peptides,
2024
Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae, College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, Fujian 362000, China;Key Laboratory of Inshore Resources and Biotechnology Fujian Province University, Quanzhou, Fujian 362000, China
Research Progress On The Mechanism Of Food-Derived Antihypertensive Peptides, Wang Baobei, Zhang Hui, Liu Yusong, Chen Hongbin, Guo Fengxian, Zheng Zongping
Food and Machinery
In this review, several mechanisms of antihypertensive peptides derived from food and its by-products were summarized. Mechanisms based on the RAAS system such as ACE/Ang Ⅱ/AT1R signaling pathways and ACE2/Ang (1-7)/MasR signaling pathways were included. Mechanisms targeting at KNOS system including PI3K/Akt/eNOS signaling pathway, PPAR-γ/caspase3/MAPK/eNOS signaling pathway and L-type Ca2+ channel were also discussed. In addition, the pathways of reducing blood pressure by inhibiting endothelin-converting enzyme (ECE) activity discovered in recent years were also introduced.
Evaluation Of Yield And Physicochemical Quality Of Pentadesma Butyracea Butter Obtained By Different Traditional Extraction Methods In Ghana,
2024
Kwame Nkrumah University of Science and Technology
Evaluation Of Yield And Physicochemical Quality Of Pentadesma Butyracea Butter Obtained By Different Traditional Extraction Methods In Ghana, Josephine Akuba Timtey, Francis Alemawor, William Otoo Ellis, Jacob K. Agbenorhevi, Nana Baah Pepra-Ameyaw
Food Science Faculty Articles and Research
Pentadesma butyracea seed butter or fat (PBSB) is a vegetable fat extracted from the seeds of the P. butyracea plant. The butter has potential use in the food, pharmaceutical, and cosmetic industries. The study investigated traditional PBSB processing methods in Ghana and evaluated their effects on yield, physicochemical parameters, and fatty acid composition. Four traditional extraction methods were identified and evaluated, and these methods are direct wet extraction of PBSB from a fresh mixture of the seed paste and water (DEW); wet extraction of PBSB from a 12-hour fermented mixture of the seed paste and water (FWO); direct wet extraction …
Effect Of Harvest Season On The Physical Properties, Fatty Acid Composition, And Volatile Compounds Of Roasted Cacao Beans,
2024
Program in Crop Production Technology, Faculty of Agricultural Technology, Songkhla Rajabhat University, Songkhla 90000, Thailand
Effect Of Harvest Season On The Physical Properties, Fatty Acid Composition, And Volatile Compounds Of Roasted Cacao Beans, Amornrat Chumthong, Nuttarisa Limjumrern, Chutikarn Saensano, Pornthep Teerawattanapong, Aekkaraj Nualla-Ong, Adirek Rugkong, Rawee Chiarawipa
Makara Journal of Science
The prevailing climate is an important factor affecting the development of the physical quality and flavor of cacao (Theobroma cacao L.) beans. The influence of harvest seasons on the physical, chemical, and flavor characteristics of cacao beans from Nakhon Si Thammarat Province, southern Thailand, was assessed. Among cacao beans, those harvested in the rainy season (R) had the highest fresh and dry weights and the lowest bean count per 100 g (87.00 ± 2.83). Although the overall fat content remained relatively constant across harvest seasons, cacao beans harvested in R exhibited a significantly higher fatty acid (C16:0, C18:1, and …
Research Advances On The Association Between Human Milk Oligosaccharides And Infant Health,
2024
Ausnutria Dairy 〔China〕 Co., Ltd., Changsha, Hunan 410200, China
Research Advances On The Association Between Human Milk Oligosaccharides And Infant Health, Jiang Yikang, Dong Ling, Liu Hongfei, Pan Lina, Hu Yibo, Peng Xiyang, Kang Wenli, Peng Xiaoyu, Wang Jiaqi, Li Wei
Food and Machinery
Human milk oligosaccharides （HMOs） are a group of complex glycans in human milk and play an important role in promoting the growth and development of infants, and more than 200 kinds of HMOs have been identified so far. In this paper, the types and structures of HMOs and their roles in improving infant intestinal health, promoting immune system development and brain development were reviewed. The application status of HMOs was summarized, the possibility and necessity of industrial production and application of HMOs in the future were prospected.
Research And Challenges Of Micropumps And Microvalves In Microfluidic Systems,
2024
Guangzhou Daan Gene Co., Ltd., Guangzhou, Guangdong 510000, China
Research And Challenges Of Micropumps And Microvalves In Microfluidic Systems, Liu Linbo, Jiang Zhuo, Shen Xuanxuan, He Ye
Food and Machinery
Microfluidic chips are driven by microfluidic pumps and controlled by microfluidic valves in microfluidic systems to achieve accurate manipulation of microfluidics. With the continuous improvement of microfluidic chip integration, liquid channels have become more complex and have smaller volumes. How to achieve fluid drive and control at the micro scale has become a key focus in chip design. The paper elaborates on the current research status, key technologies, and development trends of micro pumps and micro valves both domestically and internationally, aiming to provide reference and guidance for the development of related industries and technological research.
Discovery, Preparation And Identification Of A New Type Of Oxyphenisatine Di（Acetate） Analogue In Dietary Supplement,
2024
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075, China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075, China;Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Food for State Market Regulation, Wuhan, Hubei 430075, China
Discovery, Preparation And Identification Of A New Type Of Oxyphenisatine Di（Acetate） Analogue In Dietary Supplement, Xia Jintao, Wu Wanqin, Zhu Songsong, Jiang Feng
Food and Machinery
Objective: To find, prepare and identify a new oxyphenisatine di（acetate） analogue. Methods: A suspected derivative of oxyphenisatine di（acetate） was found by high-performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry during the routine screening of weight loss healthcare product. The compound was isolated and purified by column chromatography, and the possible structures were inferred from the information of isotope mass spectra, secondary ion mass spectra, one-dimensional and two-dimensional NMR spectra. Finally, all possible structures were prepared by de novo synthesis strategy, and their fine structures were confirmed by spectral comparison. Results： The compound was identified as 5-Cl oxyphenisatine di（acetate）, a new type of oxyphenisatine di（acetate）, …
Optimization Of Culture Conditions For Maximum Viable Count Of Brevibacillus Laterosporus Based On Mtt Colorimetry And Response Surface Methodology,
2024
College of Agriculture, Henan University of Science and Technology, Luoyang, Henan 471000, China
Optimization Of Culture Conditions For Maximum Viable Count Of Brevibacillus Laterosporus Based On Mtt Colorimetry And Response Surface Methodology, Song Peng, Li Lixiang, Zhao Biao, Wang Zele, Sun Xingxin
Food and Machinery
Objective: This study aimed to explore the optimal medium composition and culture conditions for obtaining the maximum viable count of Brevibacillus laterosporus. Methods: Based on establishing the correlation regression equation between the MTT colorimetric method and plate counting method, the optimal medium composition (carbon source, nitrogen source, inorganic salt) and fermentation conditions (initial pH, temperature, inoculation amount, KH2PO4) for obtaining the maximum viable count of B. laterosporus were optimized. Results: A significant linear correlation for viable count determination between MTT colorimetry and plate counting (R2>0.999) was found; Maltose, CaCl2, initial …
Green Analysis Of Glyphosate And Its Metabolite Amino Methyl Phosphoric Acid In Tea,
2024
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075, China;Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Food for State Market Regulation, Wuhan, Hubei 430075, China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075, China
Green Analysis Of Glyphosate And Its Metabolite Amino Methyl Phosphoric Acid In Tea, Li Beibei, Wang Wei, Jiang Feng, Wang Huixia, Chen Li
Food and Machinery
Objective： This study aimed to develop an ion chromatography-tandem mass spectrometry (IC-MS/MS) for the analysis of glyphosate and its metabolite amino methyl phosphoric acid (AMPA) residues in tea without derivatization. Methods： Tea samples were ultrasonically extracted with 20 mmol/L NaOH aqueous solution and cleaned up by dispersive solid-phase extraction (150 mg primary-secondary amine (PSA), 15 mg C18, 15 mg graphitized carbon black (GCB)). The samples were separated on an ion chromatographic column AS11-HC-4 μm (2 mm×250 mm) by using an isometric elution procedure of 35 mmol/L aqueous solution of sodium hydroxide as mobile phase. A multiple reactions monitoring …
Migration Quality Of Formaldehyde In The Polylactic Acid Straw Detected By Hplc,
2024
Yangzhou Centre for Food and Drug Control, Yangzhou, Jiangsu 225000, China
Migration Quality Of Formaldehyde In The Polylactic Acid Straw Detected By Hplc, Hu Yun, Zou Yongping, Zhou Yuanyuan, Wang Shuai, Liang Zhichun
Food and Machinery
Objective: A formaldehyde detection method was established for the accurate analysis of the migration of formaldehyde in water and acid simulants from the polylactic acid straws. Methods: The preferred chromatographic conditions were: mobile phase water-acetonitrile (Vwater∶Vacetonitrile of 55∶45), column temperature of 35 ℃, detection wavelength of 355 nm. The optimized 2,4-dinitrophenylhydrazine derivative conditions were: the acetic acid in acidic 2,4-dinitrophenylhydrazine solution of 1.5 mL/100 mL (pH 3.07), the molar ratio of 2,4- dinitrophenylhydrazine of quadruple formaldehyde, the reaction temperature of 45 ℃, and the reaction time of 40 min. Results: The linear equation of formaldehyde-2,4-dinitrobenzene …
Rice Fatty Acid Detection Method Combining Hyperspectral Technology With Improved Lssvm,
2024
Lu'an Vocational and Technical College, Changzhi, Shanxi 046000, China
Rice Fatty Acid Detection Method Combining Hyperspectral Technology With Improved Lssvm, Fu Juanjuan, Chen Chunru, Huang Zhenlin, Sun Feng
Food and Machinery
Objective: To solve the problems of low accuracy and poor efficiency in the existing rice quality testing methods of food enterprises. Methods: Based on a hyperspectral data acquisition system, a fast and non-destructive detection method for stored rice quality was proposed, which combined an improved bacterial foraging algorithm and least squares support vector machine. By applying the improved bacterial foraging algorithm, the hyperparameters (regularization parameter and kernel parameter) of the least squares support vector machine were optimized to achieve rapid and non-destructive detection of rice quality. its performance was analyzed through experiments. Results: The proposed method can achieve rapid and …
Application Of Gas Chromatography Combined With Stoichiometry In Discriminant Analysis Of Pseudo Mixtures Of Walnut Oil And Rapeseed Oil,
2024
Nanyang Product Quality Inspection and Testing Center, Nanyang, Henan 473000, China
Application Of Gas Chromatography Combined With Stoichiometry In Discriminant Analysis Of Pseudo Mixtures Of Walnut Oil And Rapeseed Oil, Wu Shibo, Liu Yanqi, Li Chao, Ma Ning, Yao Heng, Wang Mengmeng
Food and Machinery
Objective: This study aimed to investigate different discriminant analysis models for pseudo-mixtures of walnut oil and rapeseed oil. Methods: Gas chromatography technology was used to analyze the fatty acid content in the adulterated mixture of walnut oil and rapeseed oil. Chemical stoichiometric methods were used to model the gas chromatography data, and discriminant analysis was performed on different proportions of walnut oil and rapeseed oil mixtures. Results: Pure walnut oil and adulterated walnut oil were distinguihed by using Principal Component Analysis (PCA) identified, and percentage of adulteration in the sample was calculated. 83.33% of the samples were successfully categorized using …
Rapid Determination Of Moisture Content Of High Cellulose And Lignin Materials By Near-Infrared Diffuse Reflectance Spectroscopy,
2024
College of Food Science and Technology, Hunan Agricutural University, Changsha, Hunan 410128, China;Hunan Onyear Industry Co., Ltd., Xiangtan, Hunan 411228, China
Rapid Determination Of Moisture Content Of High Cellulose And Lignin Materials By Near-Infrared Diffuse Reflectance Spectroscopy, Yao Li, Li Zongjun, Zhu Menjun, Dai Hairong, Li Xiaoyan
Food and Machinery
Objective: To establish a rapid method for moisture detection of high cellulose and lignin materials. Methods: The areca nut, a Chinese herbal medicine containing high cellulose and lignin, was selected. Use a near-infrared spectrometer to collect near-infrared diffuse reflectance spectra. Apply NIR Cal modeling software to preprocess the spectral data, select the optimal feature wavelengths, and use partial least squares (PLS) analysis to establish a quantitative model for areca nut moisture content. Results: A quantitative model for areca nut moisture content was acquired, with the coefficient of determination of 0.994 2, the root mean square of the calibration error (RMSEC) …
Numerical Simulation Of The Effect Of Freezing Sword Structure On The Ice Performance Of Block Ice Machine,
2024
Tianjin University of Commerce, Key Laboratory of Tianjin Refrigeration Technology, Tianjin 300314, China
Numerical Simulation Of The Effect Of Freezing Sword Structure On The Ice Performance Of Block Ice Machine, Sun Huan, Yang Kai, Liu Xiaotong
Food and Machinery
Objective: To add a freezing sword inside the evaporator of the ice mould of a direct-cooled block ice machine to achieve rapid ice production. Methods: COMSOL was used to simulate the effects of the cross-sectional shape of the freezing sword and the freezing sword inclination angle on the ice production process. Results: As the ice making process continued, the average internal temperature of the ice mould with additional freezing swords of different cross-sectional shapes decreased and the volume fraction of solid phase in the ice mould increasedd with time, but the average internal temperature of the ice mould with additional …
