technological performance

技术性能
  • 文章类型: Journal Article
    联合鹰嘴豆分离蛋白(CPI,1%,w/w)和壳聚糖(CHI,1%,w/w)在技术上,热,研究了无磷猪肉肉乳剂(PPME)的结构特性。结果表明,CPI+CHI显著提高乳液稳定性(P<0.05),协同提高硬度和咀嚼性,并且不会对颜色属性产生负面影响,与高磷酸盐对照相比,这赋予了PPME相似甚至更好的技术性能。这些改变与肌球蛋白焓值降低有关,将自由水重新排列成固定水,α-螺旋结构的协同减少和β-折叠结构的增加,拉曼谱带的反式-反式-反式SS构象强度增加,并形成相互作用的蛋白质凝胶网络,其中小尺寸的脂肪颗粒均匀地分散在蛋白质基质中。因此,CPI和CHI相结合,有望成为肉制品的磷酸盐替代品。
    The effects of combined chickpea protein isolate (CPI, 1%, w/w) and chitosan (CHI, 1%, w/w) on the technological, thermal, and structural properties of phosphate-free pork meat emulsions (PPMEs) were investigated. The results showed that CPI + CHI significantly improved the emulsion stability (P < 0.05), synergistically elevated the hardness and chewiness, and did not negatively impact the color attributes, which endowed the PPMEs with similar or even better technological performances compared to the high-phosphate control. These alterations were related to the reduced myosin enthalpy values, the rearrangement of free water into immobilized water, the synergistic reduction in α-helical structure and increase in β-sheet structure, the increased trans-gauche-trans SS conformation intensity of the Raman bands, and the formation of interactive protein gel networks where small-sized fat particles were evenly dispersed in the protein matrix. Therefore, combined CPI and CHI shows promise as a phosphate replacer for meat products.
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  • 文章类型: Journal Article
    甜菜根是一种富含抗氧化化合物的块茎,即,甜菜碱和皂苷,是膳食硝酸盐的主要来源之一。本研究的目的是使用不同的包封剂通过冻干将即食甜菜根汤微囊化,提供所需数量的生物活性营养素。淀粉中的甜菜汤的粒径分布范围为7.94±1.74至245.66±2.31µm,麦芽糊精中的粒径分布范围为30.56±1.66至636.34±2.04µm。淀粉中甜菜汤粉的微粒产率从77.68%到88.91%不等。并且在麦芽糊精中从75.01%到80.25%。1:2比例的NO3-和总甜菜碱含量为10.46±0.22mmol·100g-1鲜重基础和淀粉粉甜菜汤中的219.7±4.92mg·g-1,麦芽糊精粉甜菜汤中的8.43±0.09mmol·100g-1鲜重基础和223.9±4.21mg·g-1。在甜菜根汤中鉴定并定量了六种不同的矿物质,即Na,K,Mg,Mn,锌和P.甜菜汤微胶囊淀粉或麦芽糊精符合微生物质量指南的消费,在整个90天的储存中具有良好的验收和购买意愿。微囊化甜菜根汤可能,因此,包括一种新颖的有吸引力的策略,以提供高含量的生物可利用的膳食硝酸盐和抗氧化剂化合物,可以帮助改善血管保护作用。
    Beetroot is a tuber rich in antioxidant compounds, i.e., betanin and saponins, and is one of the main sources of dietary nitrate. The aim of the present study was to microencapsulate a ready-to-eat beetroot soup by lyophilization using different encapsulating agents, which supply the required amount of bioactive nutrients. Particle size distributions ranged from 7.94 ± 1.74 to 245.66 ± 2.31 µm for beetroot soup in starch and from 30.56 ± 1.66 to 636.34 ± 2.04 µm in maltodextrin. Microparticle yields of powdered beetroot soup in starch varied from 77.68% to 88.91%, and in maltodextrin from 75.01% to 80.25%. The NO3- and total betalain contents at a 1:2 ratio were 10.46 ± 0.22 mmol·100 g-1 fresh weight basis and 219.7 ± 4.92 mg·g-1 in starch powdered beetroot soup and 8.43 ± 0.09 mmol·100 g-1 fresh weight basis and 223.9 ± 4.21 mg·g-1 in maltodextrin powdered beetroot soup. Six distinct minerals were identified and quantified in beetroot soups, namely Na, K, Mg, Mn, Zn and P. Beetroot soup microencapsulated in starch or maltodextrin complied with microbiological quality guidelines for consumption, with good acceptance and purchase intention throughout 90 days of storage. Microencapsulated beetroot soup may, thus, comprise a novel attractive strategy to offer high contents of bioaccessible dietary nitrate and antioxidant compounds that may aid in the improvement of vascular-protective effects.
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  • 文章类型: Journal Article
    本研究旨在评价安徽省工业企业差异化技术创新效率对当地环境污染物排放的影响,中国,2012-2016年期间。运用DEA、SEM-PLS和Malmquist指数等计量模型,探讨了工业企业差异化技术创新效率对安徽省地方环境污染物排放的潜在影响。在对SEM-PLS模型进行初步分析后,运用DEA和Malmquist指数模型对安徽省不同地区工业企业地方技术创新效率的分化程度和动态发展水平进行评价。通过这些分析,本研究提出了以下三个主要结果。工业企业技术创新效率与环境处置技术绩效水平呈正相关。同时,安徽省不同地区工业企业的环境处置绩效存在较大差距。工业企业环境处置的预期技术绩效与实际技术绩效之间也存在较大差距,根据SEM-PLS分析结果。此外,从DEA和Malmquist指数模型的结果观察到,工业企业差异化技术创新效率对当地环境污染物排放的影响具有明显的地理分布特征。然而,与2012-2016年安徽省产业经济整体省域发展趋势和区域分布格局不一致。在社会经济的快速发展和现代科技的进步下,差异化技术创新效率对安徽省不同地区工业环境处置技术绩效的影响较弱。同时,企业技术创新的环境处理能力也在下降。最后,在对DEA、SEM-PLS和Malmquist指数模型进行调查和综合分析的基础上,提出了一些对策和政策建议。
    The study was designed to evaluate the impact of differentiated technological innovation efficiencies of industrial enterprises on the local emissions of environmental pollutants in Anhui province, China, during the period of 2012-2016. The econometric models of DEA and SEM-PLS and Malmquist index are used to explore the potential impacts of differentiated technological innovation efficiencies of industrial enterprises on the local emissions of environmental pollutants in Anhui province. After an initial analysis of SEM-PLS model, the models of DEA and Malmquist index are used to evaluate the differentiated degrees and dynamic development levels of local technological innovation efficiencies of industrial enterprises in different regions of Anhui province. With these analyses, the study presents three main results as follows. There is a positive correlation between the technological innovation efficiencies of industrial enterprises and the technological performance levels of environmental disposal. Meanwhile, there is a large gap among the environmental disposing performances of industrial enterprises in different regions of Anhui province. There is also a large gap between the expected and actual technological performances of industrial enterprises\' environmental disposal, according to the results of SEM-PLS analysis. Furthermore, there are several obvious characteristics of geographical distribution in the impact of differentiated technological innovation efficiencies of industrial enterprises on local environmental pollutant emissions observed from the results of the DEA and Malmquist index models. However, it is not consistent with the overall provincial development trend and regional distribution pattern of industrial economics in Anhui province over the period of 2012-2016. Under the rapid development of social economics and modern technological advance, there is a weak impact of differentiated technological innovation efficiency on the technological performance of industrial environmental disposal in different regions of Anhui province. Meanwhile, the environmental disposal capacity of enterprises\' technological innovation become declining too. Finally, some countermeasures and policy suggestions are put forward based on the investigation and comprehensive analyses of the DEA and SEM-PLS and Malmquist index models.
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  • 文章类型: Journal Article
    随着下一代测序(NGS)的应用正在进入原发性免疫缺陷(PID)诊断流程的早期阶段,需要对其有效性进行重新评估。这项研究的目的是系统地回顾NGS在PID中的诊断率。
    搜索PubMed和Embase数据库以进行相关研究。当描述在先前根据临床和/或实验室发现诊断为PID的患者中使用NGS时,研究合格。有关研究特征的相关数据,提取了技术性能和诊断产量。
    14项研究符合数据提取条件。六项研究描述了来自特定PID子类别的患者群体。其余研究包括患有未分类PID的患者。这些研究是基于意大利的人群,伊朗,土耳其,泰国,荷兰,挪威,沙特阿拉伯,瑞典,英国,和美国。八项研究使用了基于阵列的靶向基因面板,四个与PID过滤器结合使用的WES,两个人使用了这两种技术。平均报告的阅读深度为98至1337倍。五项研究描述了应用技术的敏感性,从83%到100%,而特异性范围为45-99.9%。被基因诊断的患者的百分比范围为15%至79%。一些研究描述了遗传发现的临床意义。
    NGS能够显著促进PID患者分子机制的鉴定。诊断结果高度取决于人口和使用NGS的技术环境。需要进一步的研究来确定NGS在PID患者中的确切诊断率和临床意义。
    As the application of next generation sequencing (NGS) is moving to earlier stages in the diagnostic pipeline for primary immunodeficiencies (PIDs), re-evaluation of its effectiveness is required. The aim of this study is to systematically review the diagnostic yield of NGS in PIDs.
    PubMed and Embase databases were searched for relevant studies. Studies were eligible when describing the use of NGS in patients that had previously been diagnosed with PID on clinical and/or laboratory findings. Relevant data on study characteristics, technological performance and diagnostic yield were extracted.
    Fourteen studies were eligible for data extraction. Six studies described patient populations from specific PID subcategories. The remaining studies included patients with unsorted PIDs. The studies were based on populations from Italy, Iran, Turkey, Thailand, the Netherlands, Norway, Saudi Arabia, Sweden, the UK, and the USA. Eight studies used an array-based targeted gene panel, four used WES in combination with a PID filter, and two used both techniques. The mean reported reading depth ranged from 98 to 1337 times. Five studies described the sensitivity of the applied techniques, ranging from 83 to 100%, whereas specificity ranged from 45 to 99.9%. The percentage of patients who were genetically diagnosed ranged from 15 to 79%. Several studies described clinical implications of the genetic findings.
    NGS has the ability to contribute significantly to the identification of molecular mechanisms in PID patients. The diagnostic yield highly depends on population and on the technical circumstances under which NGS is employed. Further research is needed to determine the exact diagnostic yield and clinical implications of NGS in patients with PID.
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