Analysis Of Uncertainty In Determination Of Folic Acid In Milk Powder By Microplate Method,
2024
Changsha Institute for Food and Drug Control, Changsha, Hunan 410016, China
Analysis Of Uncertainty In Determination Of Folic Acid In Milk Powder By Microplate Method, Liu Ziyin, Zhuo Yiming, Liu Lalan, Peng Na, Wu Houlu
Food and Machinery
Objective: To analyze and evaluate the uncertainty of the determination of folic acid content in milk powder by microplate method. Methods: The content of folic acid in infant formula milk powder was determined by microplate method according to GB 5009.211—2022 "National Standard for Food Safety-Determination of Folic Acid in Foods". Various experimental factors affecting the test results were analyzed and calculated according to the uncertainty evaluation methods and guidelines such as JJF 1059.1—2012, CNAS-CL01-G003:2011 and CNAS-GL05:2011, and the synthetic standard uncertainty and expanded uncertainty were obtained. Results: The expanded uncertainty U95=22.08 μg/100 g（k=2）, and the folate …
Study On The Performance Of Heat Pump Assisted Random Filler Surface Evaporation Device For Concentrated Thermosensitive Feed Liquid,
2024
College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
Study On The Performance Of Heat Pump Assisted Random Filler Surface Evaporation Device For Concentrated Thermosensitive Feed Liquid, Ma Yinglu, Chen Dong, Hu Shengwei, Wang Shuo, Zhang Huijuan, Xie Jihong
Food and Machinery
Objective： A surface evaporation concentration device were designed to concentrate thermosensitive feed liquid at low temperature under normal pressure with low energy consumption. Methods： Based on an introduction to the working principle of the device, the basic equations of the device were given. The changes of volumetric evaporation flux and energy saving ratio with flow rate of the feed liquid, feed liquid temperature, sweeping gas flow rate, sweeping gas temperature were calculated and analyzed. Designed an experimental platform and obtained a set of optimal performance parameters through experiments. Results： The results showed that when the flow rate of the feed …
Research On The Tooth Roll Power Of Roller Mill Based On Discrete Element,
2024
Henan University of Technology, Zhengzhou, Henan 450001, China
Research On The Tooth Roll Power Of Roller Mill Based On Discrete Element, Zhao Qifeng, Wu Wenbin, Wang Xuefeng, Jia Huapo
Food and Machinery
Objective: To optimize the operating parameters of wheat milling in roller mill I skin mill to reduce the energy consumption of milling. Methods: Using EDEM discrete element simulation software, Box-Behnken test was designed for key milling factors such as roll pitch, feeding amount, rotational speed and rotational speed ratio to investigate the relationship between operating parameters and milling power. Results: The significance rankings of the effects on the toothed roll crushing power were, in order, speed ratio, roll pitch, feed volume, speed ratio quadratic term, roll pitch quadratic term, interaction of roll pitch and speed ratio, interaction of feed volume …
Robot's Automatic Strategy For Fermented Grains Scooping Based On Machine Vision,
2024
College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
Robot's Automatic Strategy For Fermented Grains Scooping Based On Machine Vision, Tian Huairui, Tian Jianyan, Wang Sugang, Wang Xiaobo
Food and Machinery
Objective: To solve the problems of low level of automation and high labor intensity of workers in the fermented grains discharging process of solid-state fermentation in the ground-pot. Methods: An automatic fermented grains scooping strategy for the compound robot for fermented grains scooping was proposed. Based on the pre-processing of the ground-pot image and the reconstruction of the point cloud inside the inner edge, the point cloud segmentation algorithm was used to extract the point cloud of fermented grains. The scooping plane was constructed. The safe working distance for scooping was solved. Preset scooping points were set. Afterwards, the scooping …
Effect Of Chlorine Dioxide Fumigation Treatment On Quality Of Broccoli,
2024
School of Mechanical and Engineering， Jiangnan University， Wuxi, Jiangsu 214122， China;Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology， Wuxi, Jiangsu 214122， China
Effect Of Chlorine Dioxide Fumigation Treatment On Quality Of Broccoli, Li Yuqing, Lu Lixin, Wang Qing
Food and Machinery
Objective： This study aimed to solve the problems of yellowing, discoloration and quality preservation of broccoli after harvesting. Methods： Broccoli was fumigated with chlorine dioxide gas at different mass concentrations (0,0.2, 0.5, 1.0, 1.5, 2.0 mg/L) at 23 ℃, and the sensory, color, yelination grade, physiological and biochemical indexes and related browning enzyme activities of broccoli were determined after 0,2,4,6,8 days of storage. Results： Compared with the control group, different mass concentrations of ClO2 could inhibit the mass loss rate, yellowing browning and spoilage of flower buds of broccoli. ClO2 at 0.5 and 1.0 mg/L had a more …
Study On The Performance Of Porcine Liver Protein Composite Membrane And Its Application In Meat Preservation,
2024
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China
Study On The Performance Of Porcine Liver Protein Composite Membrane And Its Application In Meat Preservation, Yang Le, Liu Lili, Wang Haoyang, Chen Hui, Ding Yue
Food and Machinery
Objective: A new type of natural food preservative with pork liver as the main raw material was developed. Methods: Water-soluble porcine liver protein (WSLP), salt-soluble porcine liver protein (SSLP) and chitosan (CS) were combined to create edible composite membranes. The edible membrane components were then examined from a variety of perspectives using mechanical properties, Fourier transform infrared spectroscopy (FT-IR) and microstructure analysis. Utilized to preserve pork, and by contrasting the changes in the physical and chemical indices during the chilling process, the freshness retention capabilities of the composite film were investigated. Results: With the addition of WSLP and SSLP, the …
A Preliminary Study On The Effect Mechanism Of A Rice Immune Peptide In Mice,
2024
School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410014, China
A Preliminary Study On The Effect Mechanism Of A Rice Immune Peptide In Mice, Wen Shiyu, Zhang Zhimeng, Wu Hao, Xie Yufei, Huang Qingming, Liao Juan, Wen Li
Food and Machinery
Objective: This study aimed to demonstrate the potential immunomodulatory activity in mice of rice immunopeptide GBP1 （NSVFRALPVDVVANAYR） screened previously. Methods: Animal experiments were conducted to investigate the immunomodulatory mechanism of GBP1 peptide. RNA-Seq was used to sequence the transcriptome of mouse spleen tissues before and after GBP1 peptide treatment, and the molecular mechanism of GBP1 peptide immunomodulatory effect was explained. Results: In the GBP1 peptide treatment group, the number of spleen cells tended to be normal, the liver organ coefficient decreased significantly, and the serum IgG content was stable.GBP1 peptide can affect the expression of cytokines, mediate signal transduction pathways, …
The Antitumor Activity Of Brassica Rapa L. Acid Polysaccharides In Vivo,
2024
School of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang 830011, China
The Antitumor Activity Of Brassica Rapa L. Acid Polysaccharides In Vivo, Kadeer Gulimila, Maitiruze Amannisa, Li Mingzhu, Kang Jinsen, Taoerdahong Hailiqian
Food and Machinery
Objective: To explore the effects of Brassica rapa L. acid polysaccharide 1 (BRAP-1) on H226 cell tumor-bearing mice. Methods: 60 mice were divided into the model group (0.1 mL/10 g), positive cisplatin [3 mg/(kg·2 d)], BRAP-1 low dose [50 mg/(kg·d)], BRAP-1 medium dose [100 mg/(kg·d)] and BRAP-1 high dose [200 mg/(kg·d)]. During the experiment, the tumor growth of mice was observed, and the tumor inhibition rate and organ index were calculated; The levels of interleukin-18 (IL-18), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in serum were detected by enzyme-linked immunosorbent assay. The gene expressions …
Analysis Of Flavor Characteristics Of Herbal Cultivated Tremella Fuciformis Based On Component Difference Analysis And Intelligent Sensory,
2024
Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;Key Laboratory of Edible Fungi Resources and Utilization 〔South〕, Ministry of Agriculture, Shanghai 201403, China;National Engineering Research Center of Edible Fungi, Shanghai 201403, China
Analysis Of Flavor Characteristics Of Herbal Cultivated Tremella Fuciformis Based On Component Difference Analysis And Intelligent Sensory, Chen Wanchao, Wu Di, Xiao Minsheng, Yao Shuxian, Yang Yan, Liu Yanfang
Food and Machinery
Objective: Clarify the flavor characteristics of Tremella fuciformis cultivated on herbaceous substrate. Methods: In the study T. fuciformis cultivated on herbaceous substrate was used as the research object, while samples of yellow tremella and white tremella cultivated on conventional substrate were used as controls. The differences in flavor composition between them were analyzed using high-performance liquid chromatography and Headspace Solid Phase Microextraction Ggas Chromatography Mass Spectrometry (HS-SPME-GC-MS). And combined with intelligent sensory technology, its flavor characteristics were analyzed. Results: According to multi-dimensional evaluations such as fresh and sweet amino acid and flavor nucleotides content, taste activity value and equal freshness …
Effects Of Grape Seed Proanthocyanidins On Hepg2 Cell Genes And Related Functions Based On Transcriptome Sequencing,
2024
Academy of Agriculture and Forestry Sciences of Qinghai University, Qinghai Tibetan Plateau Key Laboratory of Agricultural Products Processing, Xining, Qinghai 810023, China;Qinghai Tibetan Plateau Germplasm Resources Research and Utilization Laboratory, Xining, Qinghai 810023, China
Effects Of Grape Seed Proanthocyanidins On Hepg2 Cell Genes And Related Functions Based On Transcriptome Sequencing, Zheng Wancai, Dang Bin, Zhang Ji, Luo Qiaoyu, Feng Zuoshan
Food and Machinery
Objective： Based on transcriptome sequencing analysis, the effect of grape seed procyanidins on HepG2 cell genes and related functions was identified. The key genes and metabolic pathways involved in the treatment of HepG2 cells with procyanidins were confirmed. Methods: Through transcriptome sequencing, screening differential genes, gene functional annotation and enrichment analysis of the KEGG pathway, transcriptome studies were conducted on grape proanthocyanidin-treated cells. Results: After treating HepG2 cells with grape anthocyanins, the main biological processes enriched are cellular processes, metabolic processes, biological regulatory processes, immune system processes, reproductive regulation, and growth regulation. Research has found that 12 key differentially expressed …
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 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.
Effects Of Silymarin On S. Aureus Atcc25923 Biofilm And Its Virulence Factors,
2024
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China
Effects Of Silymarin On S. Aureus Atcc25923 Biofilm And Its Virulence Factors, Wang Jiakang, Tang Haoguo, Chen Jing, Si Qihe, Shen Ruxiao
Food and Machinery
Objective: In this study, the effects of silymarin on the biofilm S. aureus ATCC25923 and its virulence factors were investigated. Methods: The inhibition and clearance of silymarin on S. aureus ATCC25923 biofilm formation were detected by crystal violet staining, the effects of silymarin on its biofilm metabolism were investigated by MTT staining, and the effects of silymarin on its coagulase expression and hemolytic activity were investigated by freeze-dried plasma and aseptic defibrinated sheep blood. In parallel, the effects of different concentrations of silymarin on its biofilm and Fourier transform were observed under an optical microscope. Results: The results showed that …
Papaya Maturity Detection Based On Multi-Target Sampling And Improved Mask R-Cnn,
2024
Zhengzhou Sias University, Zhengzhou, Henan 451100, China
Papaya Maturity Detection Based On Multi-Target Sampling And Improved Mask R-Cnn, Qi Guohong, Zhang Yunlong, Su Man
Food and Machinery
Objective: Improve the accuracy and robustness of papaya ripeness detection. Methods: A method of papaya ripeness detection based on multi-target sampling and improved Mask R-CNN was proposed. In the process of data expansion, the method introduced multi-object sampling technology to generate enhanced images from small data sets taken under controlled conditions, which was conducive to extending the proposed method to data sets with complex features of actual papaya images. The effectiveness and robustness of the proposed method were verified by means of average accuracy, accuracy, accuracy-recall curve and calculation time, and the results of papaya ripeness detection effect were compared …
Uncertainty Evaluation For The Determination Of Four Quinolone Residues In Honey By Liquid Chromatography-Tandem Mass Spectrometry,
2024
Changsha Institute for Food and Drug Control， Changsha， Hunan 410036， China;National Alcohol Products Quality Inspection and Testing Center 〔Hunan〕， Changsha， Hunan 410036， China
Uncertainty Evaluation For The Determination Of Four Quinolone Residues In Honey By Liquid Chromatography-Tandem Mass Spectrometry, Yang Yun, Cao Yang, Li Jing, Zhong Feifei, Zuo He
Food and Machinery
Objective: This study aimed to evaluate the determination uncertainty of four quinolones residues in honey by liquid chromatography-tandem mass spectrometry （LC-MS/MS）. Methods: Based on GB 31657.2—2021, a mathematical model for sources of uncertainty evaluation was established. The uncertainty of each variable which affect the result were calculated and the weight of each uncertainty component was assessed. Results: The uncertainties in the determination of enrofloxacin, sarafloxacin, ofloxacin and ciprofloxacin in honey were （4.97±0.81）, （10.13±1.58）, （7.67±1.23）, （14.97±2.25） μg/kg （P=95%，k=2） respectively. Conclusion: The main influencing factors of the determination uncertainty were preparation and dilution process of standard solution and …
Effects Of Four Packaging Materials On Preservation Of Passion Flower （Passiflora Caerulea L.） Fruit,
2024
College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, Fujian 362002, China;Laboratory of Inshore Resources and Biotechnology Fujian Province University, Quanzhou, Fujian 362002, China
Effects Of Four Packaging Materials On Preservation Of Passion Flower （Passiflora Caerulea L.） Fruit, Lin Yuzhao, Chen Leiyi, Chen Hongbin, Zheng Jinshui, Jiang Xuanjing, Yang Jingmei
Food and Machinery
Objective: The preservation effects of four packaging materials on passion fruit were studied. Methods: The fruit of passion flower cv. Huangjin （maturity: eight） was used as the research material, and passion flower fruit was treated via polyvinyl chloride （PVC） film, polyethylene （PE） bag, bidirectional stretch polyolefin （BSP） heat shrinkable film, biodegradable modified atmosphere （BMA） bag, respectively, with untreated ones as the control group. Then, the fruits was stored at temperature of （25±1） ℃ and relative humidity of 85% for fifteen days, and the preservation indices of fruit were measured every three days. Results: Compared to control passion fruit, the four …
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 …
Extraction Of Active Ingredients From Penthorum Chinense Pursh And Comparison Of Component Distribution In Different Parts,
2024
Institute of Agro-Products Processing Science and Technology 〔Institute of Food Nutrition and Health, Sichuan Academy of Agricultural Sciences〕, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan 610066, China
Extraction Of Active Ingredients From Penthorum Chinense Pursh And Comparison Of Component Distribution In Different Parts, Xiang Zhuoya, Zhu Boyu, Zhu Yongqing, Xia Chen, Chen Song
Food and Machinery
Objective: This study aimed to determine the extraction solvent and compare the distribution of functional ingredient and antioxidant activities in different parts of Penthorum chinense pursh. Methods: the total phenolic content, total flavonoid content, antioxidant capacity and individual phenolic compounds content in Penthorum chinense pursh were determined and analyzed. Results: The total phenolic content, total flavonoid content increased and then decreased with the increase of solvent concentration. The seven main phenolic compounds （catechin, rutin, pinocembrin-7-O-glucoside, quercetin, kaempferol, pinocembrin and thonningianin A）, ABTS radical scavenging ability, and ferric ion reduction ability were the highest in 80% ethanol extract. The …
