粮油食品供应链危害物识别与防控技术研究
项目来源
国（略）研（略）(（略）D（略）
项目主持人
郑（略）
项目受资助机构
合（略）大（略）
立项年度
2（略）
立项时间
未（略）
项目编号
2（略） YFC1600600
项目级别
国（略）
研究期限
未（略） （略）
受资助金额
1（略）万（略）
学科
食（略）关（略）研（略）
学科代码
未（略）
基金类别
“食（略）关（略）研（略）”重点专项
关键词
太（略）谱（略）食（略）;（略）计（略）;（略）检（略） （略） （略）c（略）c（略） （略）u（略）t（略）f（略）i（略） （略） （略）h（略）m（略）i（略）;（略）n（略）s（略）c（略）e（略）s（略）t（略）
参与者
刘（略）
参与机构
未（略）
项目标书摘要：传统（略）程繁琐，无法满足对（略）求，因而迫切需要一（略）。太赫兹光谱技术(（略）、安全性好、灵敏度（略）点，本文基于THz（略）损检测问题，主要研（略）同储藏期的橄榄油为（略）品质中的过氧化值预（略）模和预测准确度分别（略）,0.6867-0（略）与氧化程度有线性关（略）同浓度黄曲霉毒素的（略）GA方法降维,BP（略）优，预测集中预测正（略）以不同储藏期的花生（略）z测定花生油过氧化（略）处理方法获得最佳预（略）P分别为0.928（略）q O2/kg。(（略）计量方法实现对大豆（略）测。BPNN结合G（略）。结果表明RP,R（略）16和1.3228（略）用LS-SVM化学（略）NE光谱数据筛选方（略）预测集的准确度高达（略）z对大豆油中苯并芘（略）课题研究表明基于T（略）快速检测，为食用油（略）法。
Applicati（略）: Traditi（略）ethods ar（略）ed for th（略）n of edib（略）ity and s（略）er,these （略）are mostl（略）uming;req（略）ation of （略）the use o（略）products.（略） overcome（略）dvantages（略） a rapid （略）taminant （略）on method（略）ly requir（略）troscopy （略）a new rap（略）on method（略） low-ener（略）zing and （略）ty.In thi（略） spectros（略）logies we（略）for the d（略） the qual（略）le oil no（略）vely.The （略）ements of（略）were summ（略）ollows:(1（略）ample wit（略） storage （略） collecte（略）ion chara（略）of extra （略）e oil exp（略）re was a （略） relation（略）n teraher（略） and oxid（略） in the r（略）867-0.961（略）he identi（略）curacy of（略）n set and（略） set were（略）9%respect（略） GA-SVM m（略）was the b（略）ion model（略）pid monit（略）e oxidati（略）y process（略）irgin oli（略）he soybea（略）the diffe（略）tion ABF1（略）ally were（略）In the AB（略）n experim（略）ellent pr（略）sults cou（略）ned using（略）ned with （略）accuracy （略）00%in cal（略）t and pre（略）.(3)Terah（略）oscopy wa（略）valuate o（略）ability o（略）ls during（略）e SVM com（略）PCA showe（略）quantitat（略）tion betw（略）nce spect（略）xide valu（略）predictio（略）ere:RP=0.（略）SEP=1.664（略）,respecti（略） feasibil（略）d determi（略）apsaicine（略） oil with（略）spectrosc（略）mined.The（略）predictio（略）ould be o（略）ng BPNN c（略）h GA with（略）416 and R（略）3228 μg/k（略）ybean oil（略）ifferent （略）benzopyre（略）nually we（略）d.The exc（略）iction re（略） be obtai（略）S-SVM com（略）t-SNE and（略）cy were 9（略）diction s（略）k suggest（略）lity and （略）ection of（略） products（略）ctroscopy（略）coupled w（略）trics cou（略）edible oi（略）nd safety（略）r results（略）ide a the（略）ce for ap（略）technolog（略）reflect t（略）t researc（略）
项目受资助省
安（略）
1. Type: Journal Articles Status: Published Year Published: 2021 Citation: H. Qi, J. Zhang, J. Wu*, X. Fang, W. Zhao, F. You, Y. Chen, L. Zheng, Real-time, selective, and low-cost detection of trace level SARS-CoV-2 spike-protein for cold-chain food quarantine, npj Sci Food (IF 5.07), 5, 12, 2021, DOI: 10.1038/s41538-021-00094-3.
2.New research development on trans fatty acids in food: Biological effects, analytical methods, formation mechanism, and mitigating measures
- 关键词：
- Trans fatty acids; Biological effects; Analytical methods; Formationmechanism; Mitigation measures; Kinetics;PERFORMANCE LIQUID-CHROMATOGRAPHY; CONJUGATED LINOLEIC-ACID;THERMALLY-INDUCED ISOMERIZATION; 2-DIMENSIONAL GAS-CHROMATOGRAPHY;MICROWAVE-ASSISTED EXTRACTION; AQUEOUS ENZYMATIC EXTRACTION; MEDIUMINFRARED-SPECTROSCOPY; MILK-FAT; SEED OIL; HEALTH IMPLICATIONS
The trans fatty acids (TFAs) in food are mainly generated from the ruminant animals (meat and milk) and processed oil or oil products. Excessive intake of TFAs (>1% of total energy intake) caused more than 500,000 deaths from coronary heart disease and increased heart disease risk by 21% and mortality by 28% around the world annually, which will be eliminated in industrially-produced trans fat from the global food supply by 2023. Herein, we aim to provide a comprehensive overview of the biological effects, analytical methods, formation and mitigation measures of TFAs in food. Especially, the research progress on the rapid, easy-to-use, and newly validated analytical methods, new formation mechanism, kinetics, possible mitigation mechanism, and new or improved mitigation measures are highlighted. We also offer perspectives on the challenges, opportunities, and new directions for future development, which will contribute to the advances in TFAs research.
...3.Using MoS2 Nanomaterials to Generate or Remove Reactive Oxygen Species: A Review
- 关键词：
- molybdenum disulfide; two-dimensional material; reactive oxygen species;advanced oxidation processes; nanozyme;CHEMICALLY EXFOLIATED MOS2; MOLYBDENUM-DISULFIDE MOS2; ENVIRONMENTALAPPLICATIONS; ADVANCED OXIDATION; ANTIBACTERIAL ACTIVITY; FENTONDEGRADATION; DRUG-DELIVERY; QUANTUM DOTS; LAYER MOS2; NANOSHEETS
Molecular oxygen-derived free radicals and molecules that are highly reactive are generally referred to as reactive oxygen species (ROS). ROS are critical to the performance of redox-reaction-based environmental remediation approaches and at the same time are important players in the regulation of gene expression and cell signaling cascades. The irregular fluctuation of ROS can cause severe damage to the human body. Developing materials to modulate the amount of ROS is of great importance to environmental and biomedical sciences. Molybdenum disulfide (MoS2) is a prototypical transition-metal dichalcogenide that has become a star in the family of 2D materials due to its unique physicochemical properties. The band gap, catalytic activity, and piezoelectric property of MoS2 can be easily tuned by modifying its size, structure, phase, and doping with other functional materials. Some MoS2 nanomaterials are emerging as promising candidates for generating or scavenging ROS. On the one hand, MoS2 nanomaterials can effectively cause the generation of ROS via the photocatalytic reactions, photocytotoxic reactions, Fenton-like reactions, permonosulfate (PMS) activations, and piezoelectric effects. On the other hand, the exposed Mo6+/Mo4+ redox couples render MoS2 nanomaterials with antioxidant enzyme-like activity, through which ROS can be efficiently quenched. In this Review, recent advances in the applications of MoS2 for modulating ROS are summarized. Current gaps as well as possible future directions in this field are discussed.
...4.Using MoS2 Nanomaterials to Generate or Remove Reactive Oxygen Species: A Review
- 关键词：
- molybdenum disulfide; two-dimensional material; reactive oxygen species;advanced oxidation processes; nanozyme;CHEMICALLY EXFOLIATED MOS2; MOLYBDENUM-DISULFIDE MOS2; ENVIRONMENTALAPPLICATIONS; ADVANCED OXIDATION; ANTIBACTERIAL ACTIVITY; FENTONDEGRADATION; DRUG-DELIVERY; QUANTUM DOTS; LAYER MOS2; NANOSHEETS
Molecular oxygen-derived free radicals and molecules that are highly reactive are generally referred to as reactive oxygen species (ROS). ROS are critical to the performance of redox-reaction-based environmental remediation approaches and at the same time are important players in the regulation of gene expression and cell signaling cascades. The irregular fluctuation of ROS can cause severe damage to the human body. Developing materials to modulate the amount of ROS is of great importance to environmental and biomedical sciences. Molybdenum disulfide (MoS2) is a prototypical transition-metal dichalcogenide that has become a star in the family of 2D materials due to its unique physicochemical properties. The band gap, catalytic activity, and piezoelectric property of MoS2 can be easily tuned by modifying its size, structure, phase, and doping with other functional materials. Some MoS2 nanomaterials are emerging as promising candidates for generating or scavenging ROS. On the one hand, MoS2 nanomaterials can effectively cause the generation of ROS via the photocatalytic reactions, photocytotoxic reactions, Fenton-like reactions, permonosulfate (PMS) activations, and piezoelectric effects. On the other hand, the exposed Mo6+/Mo4+ redox couples render MoS2 nanomaterials with antioxidant enzyme-like activity, through which ROS can be efficiently quenched. In this Review, recent advances in the applications of MoS2 for modulating ROS are summarized. Current gaps as well as possible future directions in this field are discussed.
...5.Target-induced in-situ formation of fluorescent DNA-templated copper nanoparticles by a catalytic hairpin assembly: application to the determination of DNA and thrombin.
- 关键词：
- 0 / Aptamers, Nucleotide. 0 / DNA Probes. 0 / Fluorescent Dyes. 789U1901C5 / Copper. 9007-49-2 / DNA. EC 3.1.- / Exodeoxyribonucleases. EC 3.1.11.2 / exodeoxyribonuclease III. EC 3.4.21.5 / Thrombin;
A fluorometric method is described for nucleic acid signal amplification through target-induced catalytic hairpin assembly with DNA-templated copper nanoparticles (Cu NPs). The toehold-mediated self-assembly of three metastable hairpins is triggered in presence of target DNA. This leads to the formation of a three-way junction structure with protruding mononucleotides at the 3' terminus. The target DNA is released from the formed branched structure and triggers another assembly cycle. As a result, plenty of branched DNA becomes available for the synthesis of Cu NPs which have fluorescence excitation/emission maxima at 340/590nm. At the same time, the branched structure protects the Cu NPs from digestion by exonuclease III. The unreacted hairpins are digested by exonuclease III, and this warrants a lower background signal. The method can detect ssDNA (24nt) at low concentration (44 pM) and is selective over single-nucleotide polymorphism. On addition of an aptamer, the strategy can also beapplied to the quantitation of thrombin at levels as low as 0.9nM. Graphical abstractSchematic representation of target-induced catalytic hairpin assembly to form branched DNA template for the in situ synthesis of fluorescent Cu nanoparticles.
...6. Determination of yield and hardening parameters of a laser welded steel by means of the Small Punch Test.6th German-Japan Seminar:»Materials,Processes and Components«,Freiburg,2010