Optimization Of Ultrasonic-Assisted Extraction Process And Analysis Of Fatty Acid Composition Of Panicum Miliaceum L. Shell Oil,
2020
Food College, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China ；Agri-Food Processing and Engineering Technology Research Center of Heilongjiang Province, Daqing, Heilongjiang 163319 , China
Optimization Of Ultrasonic-Assisted Extraction Process And Analysis Of Fatty Acid Composition Of Panicum Miliaceum L. Shell Oil, Miao Xin-Yue, Zhu Dan, Yan Fei-Xiang, Niu Guang-Cai, Wei Wen-Yi, Zhu Li-Bin
Food and Machinery
The n-hexane was used as extraction solvent, and the ultrasonic-assisted extraction parameters of Panicum miliaceum L. shell oil were optimized by response surface methodology based on the single factor experiment of ultrasonic power, liquid-solid ratio, extraction time and extraction temperature. The results showed that the optimum extraction parameters were as follows: the ultrasonic power was 400 W, the liquid-solid ratio was 12∶1 (mL/g), the extraction temperature was 70 ℃, and the extraction time was 50 min, and the yield of Panicum miliaceum L. shell oil reached 6.95% under the optimal condition. Five kinds of fatty acids were identified by GC, …
Analysis Of Active Compounds, Antioxidant Activity And Correlation In Different Parts From Ficus Tikoua Bur.,
2020
Guizhou Engineering Research Center for Fruit Processing, Guiyang, Guizhou 550005 , China ；Teaching Equipment and Laboratory Management Center, Guiyang University, Guiyang, Guizhou 550005 , China
Analysis Of Active Compounds, Antioxidant Activity And Correlation In Different Parts From Ficus Tikoua Bur., Yang Xiu-Qun, Xie Guo-Fang, Wu Qian, Chen Lian, Chen Jia, Liu Yong-Ling
Food and Machinery
To investigate the bioactive compounds and antioxidant activity of vine, leaves and fruits of the Ficus tikoua Bur. in Guizhou Province, the phenolic compounds, vitamin C, total phenols, total flavonoids were analyzed. Antioxidant activity was evaluated by total reducing power assay (TRPA), free radical scavenging capacity of ABTS+· (ABTS) and ferric ion reducing antioxidant power(FRAP) method in vitro, and Pearson correlation analysis was conducted. The results indicated that the contents of bioactive compounds and antioxidant activity were significantly different between the vine, leaves and fruits (P＜0.05). The content of total phenols and flavonoids in vine was significantly higher …
Effects Of Physical Properties Of Raw Material Flour On Quality Of Fresh Rice Noodles,
2020
Hunan Agricultural Products Processing Institute, Changsha, Hunan 410125 , China
Effects Of Physical Properties Of Raw Material Flour On Quality Of Fresh Rice Noodles, Tao Xiang-Lin, Wu Yue-Hui, Wei Ying-Juan, Tang Zhen-Xing, Yuan Jie, Xie Jun, Tang Han-Jun
Food and Machinery
Three varieties of indica rice with significant difference in amylose and protein content were selected as the research materials. The fresh rice noodles was processed by production line with a capacity of 1 200 kg/h after size mixing (material liquid ratio 11.5). The physical properties of raw material flour were prepared by dry milling, airflow ultrafine pulverizing and water milling were analyzed by SEM, laser particle size analyzer, DSC and texture analyzer, the relationship between physical properties and quality of fresh rice noodles were discussed. Results: There was significant difference in the size of raw material flour prepared by different …
Application Of Lactobacillus Plantarum In Improving The Quality Of Tobacco Leaves From Different Regions,
2020
School of Food Science and Technology, South China University of Technology, Guangzhou, Guangdong 510640 , China
Application Of Lactobacillus Plantarum In Improving The Quality Of Tobacco Leaves From Different Regions, Qin Ming-Juan, Chen Sen-Lin, Zhao Qiang-Zhong, Peng Chen, Jin Bao-Feng, Tao Hong
Food and Machinery
Single factor combined with orthogonal test was employed to optimize the best technology for fermentation of tobacco leaves by Lactobacillus plantarum in this study. The chemical components, aroma substances and sensory evaluation of fermented tobacco leaves were analyzed. The optimal fermentation technology of tobacco leaves by L. plantarum was achieved when the addition of L. plantarum, glucose syrup and soy protein peptide was 0.80‰, 5.0‰, and 0.05‰ respectively, with fermentation for 8 days. The starch content of tobacco leaves decreased to the most significantly, and 9 kinds of new volatile aroma substances were detected. The content of nicotine decreased …
Characteristic Analysis Of Heat-Not-Burn Cigarette Tobacco Materials,
2020
Yunnan Yangrui Tech Group Co., Ltd., Kunming, Yunnan 650224 , China
Characteristic Analysis Of Heat-Not-Burn Cigarette Tobacco Materials, Yang Xue-Yan, Wen Guang-He, Li Feng, Rao Guo-Hua, Ken Sheng-Ye, Duan Qin, Jin Yun-Feng, Gao Chao
Food and Machinery
In order to deeply understand the characteristics of heat-not-burn (HNB) cigarette tobacco materials prepared by different processes and their effects on the characteristics of cigarette products, four kinds of sheets with different flavors prepared respectively by rolling press (RP) , slurry process (SP), paper-making process (PP) and air-laid process (AP) were analyzed by chemical composition analysis, thermal cracking analysis and thermal weight analysis. The results are as follows. ① RP and SP tobacco materials had a low fiber content and tight structure, while PP and SP tobacco materials had a relatively high fiber content and loose structure. ② Water content …
Research Progress On Application Of Polyoxometalates In Food Preservation,
2020
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 , China
Research Progress On Application Of Polyoxometalates In Food Preservation, Zhou Feng, Zhang Jia-Wen, Liu Hai-Xiong, Hu Jia-Miao
Food and Machinery
This paper comprehensively expounds the research achievements on the biological activity of polyoxometalates at home and abroad in recent years, and points out the research progress of the application of polyoxometalates in the field of food preservation based on their anti-bacterial and enzyme-inhibitory activities. The application trend and research direction of polyoxometalate in food industry are also prospected.
Effects Of Low Temperature And Low Voltage Electrostatic Field Treatment Combined With Microporous Pe Film Packaging On Storage Quality Of Different Maturity Lingwu Long Jujube,
2020
College of Agronomy, Ningxia University, Yinchuan, Ningxia 750021 , China ；Key Laboratoryof Microbial Applied Technology and Safety Control, Yinchuan, Ningxia 750021 , China
Effects Of Low Temperature And Low Voltage Electrostatic Field Treatment Combined With Microporous Pe Film Packaging On Storage Quality Of Different Maturity Lingwu Long Jujube, Yang Ya-Li, Liu Hui-Yan, Fang Hai-Tian, Zhang Hao-Yu, Li Jin-Na, Zhang Guang-Di
Food and Machinery
Lingwu long jujube with different maturity levels (semi-red period, 2/3 red period and full red period) as research material, the method of low temperature and low voltage electrostatic field combined with PE film bag was used to.preserve the freshness of the jujube fruits. During the storage period, the changes of physical and chemical properties of Lingwu long jujube fruits such as ascorbic acid (VC), total acid (TA), soluble solids (TSS), hardness and weightlessness rate, and sensory evaluation were investigated. As results, Lingwu long jujube fruits in full red and half-red periods had a shorter fresh-keeping period, with a faster softening …
Recent Progress In Marine Natural Products Intervention In Inflammatory Bowel Disease,
2020
College of Mairine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, Shandong 266042 , China
Recent Progress In Marine Natural Products Intervention In Inflammatory Bowel Disease, Li Ming-Shuang, Yang Xi-Hong, Che Hong-Xia, Xie Wan-Cui
Food and Machinery
In this article, the recent research progress and therapeutic mechanism of marine-derivedactive substance against inflammatory bowel disease are reviewed.The multiple action targets of macromolecular active substances under the existing experimental model are proposed. And the possibility and potential mechanism of fatty acids, polysaccharides, biological peptides and other substances as adjuvant therapy of inflammatory bowel disease are discussed, which will hopefully provide a theoretical basis for the high value utilization of seafood and the development of supplements for inflammatory bowel disease.
Effect Of Sodium Chloride On Starch Properties From Different Adzuki Bean Varieties,
2020
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Effect Of Sodium Chloride On Starch Properties From Different Adzuki Bean Varieties, Zhang Jing-Yi, Zhai Ai-Hua, Zhang Dong-Jie
Food and Machinery
The effects of sodium chloride on the properties of starch paste were studied by analyzing the size, viscosity, regeneration, enthalpy and gelatability of starch paste after adding sodium chloride. The results showed that the starch in da hong pao with low amylose content showed higher initial temperature, final viscosity and enthalpy of gelatinization than that in baoqing and pearl, with lower peak viscosity and smaller particle size; After the addition of 2% sodium chloride, the average particle size, peak viscosity, attenuation value and rejuvenation value of the three kinds of red bean starch gelatinized decreased significantly (P＜0.05). Gelatinization temperature and …
Quality Change And Shrinkage Model Of Kiwi During Freeze Drying And Vacuum Microwave Combined Drying,
2020
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Quality Change And Shrinkage Model Of Kiwi During Freeze Drying And Vacuum Microwave Combined Drying, Lian Miao-Miao, Duan Xu, Huang Lue-Lue, Lin Hui-Yan
Food and Machinery
Kiwifruits were respectively dried by freeze-drying and vacuum-microwave combined drying, with different microwave power (0.25, 0.30 and 0.39 W/g). In combination with the shrinkage ratio, sensory quality, color difference, rehydration ratio and porosity of kiwifruit in the drying process, the drying characteristics, pore structure and shrinkage characteristics of kiwifruit pieces in the drying process were analyzed, and the shrinkage model of kiwifruit pieces in the process of FD pretreatment vacuum microwave drying was established. The results showed that the drying characteristics of kiwifruit slices changed with the different power of microwave, and the higher the microwave power could cause higher …
Optimization Of Modifying Kiwifruit Peel Dietary Fiber With A Colloid Mill,
2020
Institute of Food Science, Jishou University, Jishou, Hunan 416000 , China
Optimization Of Modifying Kiwifruit Peel Dietary Fiber With A Colloid Mill, Wu Hai-Yu, Gong Lin-Ling, Yang Wan-Gen
Food and Machinery
Using water retention capability and oil-binding capability as indices, the effects of the factors such as insert spacing of colloid mill, ratio of liquid to solid and milling time on the indices were evaluated, and the optimal conditions of the modification were obtained by a Box-Behnken experiment. The results showed that the optimal modification conditions were: insert spacing of 13 μm, ratio of liquid to solid of 90∶1 (mL/g) and milling time of 7.5 min. After crushing under such conditions, the KPDF had an average particle size (D50) of 58 μm, lower than that before modification by 94.42%; …
Functional Components, Health Function And Utilization Of Blueberry,
2020
Department of Food and Drug Engineering, School of Pharmacy, Hunan University of Traditional ChineseMedicine, Changsha, Hunan 410208 , China
Functional Components, Health Function And Utilization Of Blueberry, Jin Yong-Xue, Feng Jian-Guo, Zheng Tao, Zeng Yi-Qiong, Zheng Hui, Yang Yong
Food and Machinery
The main functional components, health care function, and application status of blueberry in food, medicine, cosmetics and other fields were reviewed, and the research direction of blueberry processing is to improve the polyphenol retention rate was also proposed.
Cloning,Expression And Purification Of Β-Conglycin Inα-Subunit Core Region,
2020
College of Food Science & Engineering, Northwest A & F University, Yangling, Shannxi 712100 , China
Cloning,Expression And Purification Of Β-Conglycin Inα-Subunit Core Region, Li Yao-Xi, Yuan Yan-Qiu, Ju Qian, Gao Meng-Nan, Zhou Shu-Yi, Hu Ya-Yun, Luan Guang-Zhong
Food and Machinery
The full-length cDNA of the soybean seeds was obtained by RT-PCR, and amplified by self-designed primers to obtain the target gene αc, The target gene was linked to the vector to construct a recombinant cloning vector pGEM-αc, which was identified by double digestion with XhoⅠ/EcoRⅠ and ligated with vector pET-28a to construct a recombinant plasmid pET-28a-αc. After correctly transferred into competent cells E.coli BL21 (DE3), the recombinant protein of α-subunit core region was expressed by inducing with the OD600 nm value 0.8, isopropylthiogalactoside (IPTG) 0.2 mmol/L at 37 ℃ for 9 h, and …
Rheological Properties Of Starch Ferulic Acid Polymer Preparedby Twin-Screw Extrusion Technology,
2020
Zhengzhou University of Technology, Zhengzhou, Henan 450044 , China
Rheological Properties Of Starch Ferulic Acid Polymer Preparedby Twin-Screw Extrusion Technology, Nie Hui, Li Yu-Ling, Wang Hai-Yan
Food and Machinery
The starch ferulic acid polymer were prepared by twin-screw extrusion technology, and changes of were studied, including the rheological properties, shear thinning and thixotropy. The results showed that after gelatinization of starch ferulic acid polymer, the paste conformed to the power function Ostwald de Waele model, showing the characteristics of pseudoplastic fluid. With the apparent viscosity increased with increasing of fluidity, the paste obeyed the shear thinning. The thixotropy increased with the increase of sample concentration.
Nti-Inflammatory Effect And Mechanism Of Major Components In Tetrastigma Hemsleyanum Diels Et Gilg,
2020
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047 , China
Nti-Inflammatory Effect And Mechanism Of Major Components In Tetrastigma Hemsleyanum Diels Et Gilg, Xing Qian, Zheng Liu-Feng, Gan Ting, Xiao Ting, Deng Ze-Yuan, Liu Xiao-Ru
Food and Machinery
The study aims to screen potential anti-inflammatory phytochemicals and explore its mechanism from Tetrastigma hemsleyanum Diels et Gilg based on their molecular docking with Keap1 protein and low-grade inflammatory model of vascular endothelial cells, and further analyzes the effects of active ingredients on the gene and protein expression of pro-inflammatory factors. Results showed that kaempferol-3-O-rutinoside, isoquercitrin, and rutin in root and 5-caffeoylquinic acid, vitexin, and orientin in leaf had significant interactions with Keap1 protein, all of which occurred in the binding cavity of Keap1 with Nrf2 protein, possibly leading to the dissociation of Nrf2 and activation. All of these six …
Analysis Of Composition And Antioxidant Activity Of Polysaccharides In Immature Rice During Seed Development,
2020
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Analysis Of Composition And Antioxidant Activity Of Polysaccharides In Immature Rice During Seed Development, Li Hong-Liang, Li Dan, Zhang Chao, Zhang Dong-Jie
Food and Machinery
In order to determine the change rule of polysaccharides content in fresh rice grains at different mature stages, the polysaccharides were extracted from fresh rice grains at different mature stages by ultrasonic-microwave synergistic extraction method. The composition of polysaccharides was analyzed by HPLC, and the antioxidant activity of polysaccharides was determined by antioxidant test in vitro. The results showed that the content of polysaccharides in fresh rice was the highest at the stage of late milk, up to 46.89 mg/g. Mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, xylose, arabinose and fucose were the main components of polysaccharides at this …
Screening And Identification Of Biogenic Amine Degrading Strains,
2020
School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034 , China
Screening And Identification Of Biogenic Amine Degrading Strains, Du Xue, You Yan-Feng
Food and Machinery
Strains with biodegradability of biogenic amines were screened from lactic acid bacteria strains from different sources preserved in the laboratory, and their growth ability at different salt concentrations and pH values were determined. The results showed that three strains with the capability of degrading biogenic amines were screened out. Based on 16S rDNA sequence analysis, strain HM22 was identified as Lactobacillus fermentum, strain HM24 as Lactobacillus plantarum, and strain YF10042 as Enterococcus faecalis. Among them, Lactobacillus plantarum HM24 has the best degradation ability. The degradation rates of tryptamine, phenethylamine, putrescine, cadaverine, histamine, tyramine, spermidine and spermine are …
Research On Discriminating Wine Varieties Based On Electronic Nose And Lightgbm Algorithm,
2020
School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130 , China
Research On Discriminating Wine Varieties Based On Electronic Nose And Lightgbm Algorithm, Qiao Miao, Zhang Lei, Mu Fang-Lin
Food and Machinery
Aiming at the problem of wine identification, the odor information of 7 kinds of wine was collected through the electronic nose, the LightGBM algorithm was used to learn the odor characteristics of the wine, and the TPE hyperparameter optimization algorithm is used to adaptively optimize the HyperGB parameter of the LightGBM algorithm. Verification is an indicator to evaluate the performance of the model. The experimental results showed that the discrimination model established by LightGBM had a 96.62% accuracy rate for wine samples, which was superior to traditional support vector machines, random forests, and neural networks. It verifies the superiority of …
Residue And Dietary Risk Assessment Of Quizalofop-P-Ethyl Andits Metabolites In Adzuki Bean,
2020
College of Food Sciences, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Residue And Dietary Risk Assessment Of Quizalofop-P-Ethyl Andits Metabolites In Adzuki Bean, Qu Jiang-Ling, Tang Hua-Cheng, Cao Dong-Mei
Food and Machinery
In order to evaluate the long-term and short-term dietary intake risk of quizalofop-p-ethyl and quizalofop-p-acid in adzuki bean, the final residue of them was determined. Using the application concentration of 0.3~0.6 mL/m2, the application frequency of 2~3 times with various picking intervals, the residue of quizalofop-p-ethyl in adzuki bean was 0.03~1.07 mg/kg, and that of quizalofop-p-acid was 0.05~1.20 mg/kg. The long-term dietary intake risk quotient (RQc) and short-term dietary intake risk quotient (RQa) were 1.98%~19.70% and 0.50%~1.30%, respectively.
Determination Of Polycyclic Aromatic Hydrocarbons In Gum-Based Chewing Tobacco By Gc-Ms/Ms,
2020
Yunnan Tobacco Quality Supervision and Test Station, Kunming, Yunnan 650104 , China
Determination Of Polycyclic Aromatic Hydrocarbons In Gum-Based Chewing Tobacco By Gc-Ms/Ms, Cai Jie-Yun, Wang Hui-Ping, Liu Wei, Gu Jian-Long, Sun Hao-Wei, Zhang Ke, Long Jie, Li Chao
Food and Machinery
In this study, an inter-standard quantitative method was used for determination of PAHs in gum-based chewing tobacco by GC-MS/MS. Under the control of the optimized experimental conditions, the LODs and the LOQs of 19 target PAHs could achieve 0.04~0.14 ng/mL and 0.14~0.46 ng/mL, respectively, while the linear correlation efficiencies were larger than 0.998 for all PAHs. With three different adding-levels, the recovery rates for all PAHs ranging from 92.26% to 109.46%. And the Intra-assay and Inter-assay precisions for the PAHs were 0.77%~3.85% and 1.57%~4.86%, respectively. The method developed was reliable and suitable for routine analysis of PAHs, and was verified …
