以草菇表面明度值为实验指标对草菇漂烫工艺进行优化,制备一种新型的香辣风味草菇即食产品,利用顶空固相微萃取-气相色谱-质谱联用技术对新鲜草菇及加工产品的挥发性香气成分进行分析,并利用味觉指纹分析仪(电子舌)与同类型的草菇即食...以草菇表面明度值为实验指标对草菇漂烫工艺进行优化,制备一种新型的香辣风味草菇即食产品,利用顶空固相微萃取-气相色谱-质谱联用技术对新鲜草菇及加工产品的挥发性香气成分进行分析,并利用味觉指纹分析仪(电子舌)与同类型的草菇即食产品进行比较。结果表明,草菇漂烫的最佳工艺为柠檬酸用量0.2 g/100 m L、抗坏血酸用量0.06 g/100 m L、漂烫时间1 min;新鲜草菇中共检测到27种挥发性风味成分,加工产品中共检测到24种挥发性成分,其中醛类物质的组成和含量变化最为明显,苯甲醛和苯乙醛的相对含量在加工后显著降低,但壬醛的相对含量大大提高;味觉指纹分析结果表明实验样品、草菇罐头及草菇开胃菜产品在咸味、酸味和鲜味上具有显著差异,实验样品具有咸味适中、鲜味突出的优点。展开更多
A close tubular vascular relationship in renal medulla is not only the structural basis for urine concentration,but is also the sensitive position for acute and chronic kidney injury.Therefore,a comprehensive understa...A close tubular vascular relationship in renal medulla is not only the structural basis for urine concentration,but is also the sensitive position for acute and chronic kidney injury.Therefore,a comprehensive understanding of spatial architecture in medulla is important for nephrologist.Serial sections were obtained from three mouse kidneys and double immunofluorescent stained for CD34 and for either AQP-1 or AQP-2.Using custom:made softwares,525 tubules and 333 vessels were traced,and ultra-structurally analyzed with EM.From corticomedullary boundary to inner medulla,descending and ascending vasa recta(DVR,AVR)closely accompanied with each and ran in the center of vascular bundle(VB).展开更多
The proper establishment of loop-vessel countercurrent arrangement in medulla provides the basis for formation of the concentrated urine.To date,the morphogenesis of it has not been fully discovered.The present study ...The proper establishment of loop-vessel countercurrent arrangement in medulla provides the basis for formation of the concentrated urine.To date,the morphogenesis of it has not been fully discovered.The present study investigated the spatial arrangement of nephron loop and vessel of developing kidneys using 3D visualization technique and immunohistochemistry for AQP-1 and NKCC2.Five-mm-thick serial paraffin sections were obtained from E14.5 and P5 kidneys and stained with hematoxylin,while 2.5-mm-thick serial epoxy sections were obtained from E17.5 and P56 kidneys and stained with toluidine blue.展开更多
文摘以草菇表面明度值为实验指标对草菇漂烫工艺进行优化,制备一种新型的香辣风味草菇即食产品,利用顶空固相微萃取-气相色谱-质谱联用技术对新鲜草菇及加工产品的挥发性香气成分进行分析,并利用味觉指纹分析仪(电子舌)与同类型的草菇即食产品进行比较。结果表明,草菇漂烫的最佳工艺为柠檬酸用量0.2 g/100 m L、抗坏血酸用量0.06 g/100 m L、漂烫时间1 min;新鲜草菇中共检测到27种挥发性风味成分,加工产品中共检测到24种挥发性成分,其中醛类物质的组成和含量变化最为明显,苯甲醛和苯乙醛的相对含量在加工后显著降低,但壬醛的相对含量大大提高;味觉指纹分析结果表明实验样品、草菇罐头及草菇开胃菜产品在咸味、酸味和鲜味上具有显著差异,实验样品具有咸味适中、鲜味突出的优点。
文摘A close tubular vascular relationship in renal medulla is not only the structural basis for urine concentration,but is also the sensitive position for acute and chronic kidney injury.Therefore,a comprehensive understanding of spatial architecture in medulla is important for nephrologist.Serial sections were obtained from three mouse kidneys and double immunofluorescent stained for CD34 and for either AQP-1 or AQP-2.Using custom:made softwares,525 tubules and 333 vessels were traced,and ultra-structurally analyzed with EM.From corticomedullary boundary to inner medulla,descending and ascending vasa recta(DVR,AVR)closely accompanied with each and ran in the center of vascular bundle(VB).
文摘The proper establishment of loop-vessel countercurrent arrangement in medulla provides the basis for formation of the concentrated urine.To date,the morphogenesis of it has not been fully discovered.The present study investigated the spatial arrangement of nephron loop and vessel of developing kidneys using 3D visualization technique and immunohistochemistry for AQP-1 and NKCC2.Five-mm-thick serial paraffin sections were obtained from E14.5 and P5 kidneys and stained with hematoxylin,while 2.5-mm-thick serial epoxy sections were obtained from E17.5 and P56 kidneys and stained with toluidine blue.
