Not from concentrate(NFC)fruit juice is the crucial clean label ingredient for new-style tea-making due to its pleasant color and fresh aroma.Here,we compared the effects of mild heating(MH)and high pressure processin...Not from concentrate(NFC)fruit juice is the crucial clean label ingredient for new-style tea-making due to its pleasant color and fresh aroma.Here,we compared the effects of mild heating(MH)and high pressure processing(HPP)on physicochemical characters and phytochemicals in NFC spine grape juice based on metabolomics analysis.Similar compound profiles were observed between HPP-treated and fresh juices.The richer phytochemical compounds comprised malvidin-3-O-glucoside,malvidin-3,5-di-O-glucoside,quercetin-3-O-rhamnoside,quercetin-3-Oglucuronide,catechin,caffeic acid,ferulic acid,procyanidin B1,procyanidin B2 were obtained after MH treatment.Nine marker phenolics and two marker tripeptides(i.e.,Glu-Val-Phe and Leu-Leu-Tyr)were identified to differentiate MH from HPP treatment,of which higher contents occurred in the MH group.Storage time experiments showed that the Glu-Val-Phe could serve as potential markers for monitoring storage of spine grape juice.These results provide new insights into the effects of processing on individual phytochemical changes and the guide for commercial application of production of spine grape NFC juice.展开更多
目的评估3D颅颈联合黑血管壁成像技术(3D T 1-SPACE)对颈动脉闭塞病变的诊断价值。方法回顾性分析47例怀疑颈内动脉闭塞患者的3D T 1-SPACE图像和DSA图像。对3D T 1-SPACE图像进行评分。分别在3D T 1-SPACE和DSA图像中评价病变程度。以...目的评估3D颅颈联合黑血管壁成像技术(3D T 1-SPACE)对颈动脉闭塞病变的诊断价值。方法回顾性分析47例怀疑颈内动脉闭塞患者的3D T 1-SPACE图像和DSA图像。对3D T 1-SPACE图像进行评分。分别在3D T 1-SPACE和DSA图像中评价病变程度。以DSA为金标准,评价颅颈联合黑血管壁成像技术诊断颈内动脉完全闭塞病变的一致率、灵敏度、特异度、阳性预测值、阴性预测值、阳性似然比和阴性似然比。结果47例患者(男性34例,女性13例)均顺利完成颈内动脉颅内外段全程MR成像。图像质量评分为(3.29±0.94)分。以DSA结果为金标准,3D T 1-SPACE诊断颈内动脉完全闭塞的一致率、灵敏度、特异度、阳性预测值、阴性预测值、阳性似然比与阴性似然比分别为93.6%、97.0%、85.7%、94.1%、92.3%、6.79和0.04。Kappa值为0.84。结论颅颈联合黑血管壁成像技术对颈动脉闭塞病变具有良好的诊断价值,并且能清晰展示颈动脉急、慢性闭塞病变特征。展开更多
Recent advances in the preparation and application of perovskite-type oxides as bifunctional electrocatalysts for oxygen reaction and oxygen evolution reaction in rechargeable metal-air batteries are presented in this...Recent advances in the preparation and application of perovskite-type oxides as bifunctional electrocatalysts for oxygen reaction and oxygen evolution reaction in rechargeable metal-air batteries are presented in this review.Various fabrication methods of these oxides are introduced in detail,and their advantages and disadvantages are analyzed.Different preparation methods adopted have great influence on the morphologies and physicochemical properties of perovskite-type oxides.As a bifunctional electrocatalyst,perovskite-type oxides are widely used in rechargeable metal-air batteries.The relationship between the preparation methods and the performances of oxygen/air electrodes are summarized.This work is concentrated on the structural stability,the phase compositions,and catalytic performance of perovskite-type oxides in oxygen/air electrodes.The main problems existing in the practical application of perovskite-type oxides as bifunctional electrocatalysts are pointed out and possible research directions in the future are recommended.展开更多
基金The authors acknowledge financial support for this work from National Key R&D Program of China(2022YFD2100805)National Science Fund for Excellent Young Scholars of China(32222067).
文摘Not from concentrate(NFC)fruit juice is the crucial clean label ingredient for new-style tea-making due to its pleasant color and fresh aroma.Here,we compared the effects of mild heating(MH)and high pressure processing(HPP)on physicochemical characters and phytochemicals in NFC spine grape juice based on metabolomics analysis.Similar compound profiles were observed between HPP-treated and fresh juices.The richer phytochemical compounds comprised malvidin-3-O-glucoside,malvidin-3,5-di-O-glucoside,quercetin-3-O-rhamnoside,quercetin-3-Oglucuronide,catechin,caffeic acid,ferulic acid,procyanidin B1,procyanidin B2 were obtained after MH treatment.Nine marker phenolics and two marker tripeptides(i.e.,Glu-Val-Phe and Leu-Leu-Tyr)were identified to differentiate MH from HPP treatment,of which higher contents occurred in the MH group.Storage time experiments showed that the Glu-Val-Phe could serve as potential markers for monitoring storage of spine grape juice.These results provide new insights into the effects of processing on individual phytochemical changes and the guide for commercial application of production of spine grape NFC juice.
文摘目的评估3D颅颈联合黑血管壁成像技术(3D T 1-SPACE)对颈动脉闭塞病变的诊断价值。方法回顾性分析47例怀疑颈内动脉闭塞患者的3D T 1-SPACE图像和DSA图像。对3D T 1-SPACE图像进行评分。分别在3D T 1-SPACE和DSA图像中评价病变程度。以DSA为金标准,评价颅颈联合黑血管壁成像技术诊断颈内动脉完全闭塞病变的一致率、灵敏度、特异度、阳性预测值、阴性预测值、阳性似然比和阴性似然比。结果47例患者(男性34例,女性13例)均顺利完成颈内动脉颅内外段全程MR成像。图像质量评分为(3.29±0.94)分。以DSA结果为金标准,3D T 1-SPACE诊断颈内动脉完全闭塞的一致率、灵敏度、特异度、阳性预测值、阴性预测值、阳性似然比与阴性似然比分别为93.6%、97.0%、85.7%、94.1%、92.3%、6.79和0.04。Kappa值为0.84。结论颅颈联合黑血管壁成像技术对颈动脉闭塞病变具有良好的诊断价值,并且能清晰展示颈动脉急、慢性闭塞病变特征。
基金Projects(51504212,21573184,51703061)supported by the National Natural Science Foundation of ChinaProject(2018J01521)supported by the Natural Science Foundation of Fujian Province,ChinaProject(fma2017202)supported by the Open Fund of Fujian Provincial Key Laboratory of Functional Materials and Applications(Xiamen University of Technology),China
文摘Recent advances in the preparation and application of perovskite-type oxides as bifunctional electrocatalysts for oxygen reaction and oxygen evolution reaction in rechargeable metal-air batteries are presented in this review.Various fabrication methods of these oxides are introduced in detail,and their advantages and disadvantages are analyzed.Different preparation methods adopted have great influence on the morphologies and physicochemical properties of perovskite-type oxides.As a bifunctional electrocatalyst,perovskite-type oxides are widely used in rechargeable metal-air batteries.The relationship between the preparation methods and the performances of oxygen/air electrodes are summarized.This work is concentrated on the structural stability,the phase compositions,and catalytic performance of perovskite-type oxides in oxygen/air electrodes.The main problems existing in the practical application of perovskite-type oxides as bifunctional electrocatalysts are pointed out and possible research directions in the future are recommended.
