Results 71 to 80 of about 465,214 (116)

野樱莓多酚提取剂对多酚抗氧化活性和可浓缩性的影响

, 2016
多酚所具有的保健作用逐渐被人们所认识,含有丰富多酚类化合物的野樱莓(Aronia melanocarpa)也逐渐受到关注。高效提取野樱莓中总多酚是其高值化利用的重要途径。本文对比研究了利用酸性乙醇、乙醇和纯水3种提取剂对野樱莓中总多酚的提取效果。结果表明,酸性乙醇具有最高的多酚提取率,而以纯水作为提取剂其多酚提取量只有酸性乙醇的28.77%。对多酚抗氧化活性(去除DPPH自由基的能力)研究发现,水提多酚的抗氧化活性高于乙醇和酸性乙醇提取的多酚。酸性乙醇 ...
徐建, 李曌, 李宏强, 吴剑, 陈国刚   +4 more
core  

[Iron porphyrin metal-organic framework material for efficient enrichment of earthworm polypeptides]. [PDF]

Se Pu
Zhan KS, Tang MZ, Lin Y, Ni LJ, Yu LS.
europepmc   +1 more source

一种空气反冲洗连续浓缩藻浆的方法及装置

, 2016
本发明公开了一种空气反冲洗连续浓缩藻浆的方法及装置，步骤是：1）稀藻浆浓缩成浓藻浆，A、进料，稀藻浆进入笮形转筒中；B、滤水脱水；C、截藻；D、冲藻；E、出料：形成浓藻浆；2）浓藻浆脱水形成半固相藻泥，A、进料，浓藻浆进入长形滚筒中；B、滤水脱水；C、截藻；D、冲藻；E、出料：形成半固相藻泥；3）采用空气反冲洗方法。一级浓缩器的出料口与二级浓缩器的进料口通过管道连接，空气反冲洗系统通过气管与一级浓缩器和二级浓缩器的进气口连接，自动电控系统通过电缆分别与浓缩器的转筒驱动电机、滚筒驱动电机 ...
黄立新, 肖邦定
core  

[Role of miR-146b-5p in hyperoxia-induced pulmonary vascular remodeling in neonatal rats: mechanisms based on the regulation of ferroptosis]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wang W, Zhao T, Wang YM, Xie O, Wang L.
europepmc   +1 more source

凝胶溶胀动力学及在电场中的皱缩动力学的研究

, 1989
本文实验中实现了低压电场中凝胶（聚丙烯酰胺凝胶）的快速皱缩，研究了四个主要因素：离子度、交联度、合成水量及电压对凝胶皱缩速率的影响关系。结果为：随离子度、合成水量及电压的增加，皱缩速率增大；随交联度增加，皱缩速率减小，并通过对实验数据进行分析和回归处理，得出了电场中凝胶皱缩的动力学关联式。本文对离子度、交联度及合成水量这三个因素对凝胶在纯水中溶胀速率的影响关系进行了全面考虑，结果为：随离子度、合成水量增加，溶胀速率增大；随交联度增加，溶胀速率减小 ...
杨芸
core  

[Petroleum ether fraction of <i>Myrica nana</i> roots relieves spasmodic abdominal pain in mice by inhibiting intestinal smooth muscle spasm]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang S, Chen W, Chen X, Tian K, Xiong Y, Sun J, Huang L, Huang X, Wang Z.   +8 more
europepmc   +1 more source

[Lonicera japonica attenuates oxidative stress and improves post-ischemic heart failure in mice <i>via</i> the STAT3/PGC-1α axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li M, Yu G, Wang J, Xie K, Ouyang Y, Wang N, Wen R, Wang W, Li C.   +8 more
europepmc   +1 more source

[Effects of exosomes derived from normoxic or hypoxic human umbilical vein endothelial cells on hypoxia-induced cardiomyocyte injury and cardiac fibroblast activation <i>in vitro</i>]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xiong X, Yang T, Chen J, Yang X, Chen S, Ruan H, Wang X, Zhang W, Cheng F, Ke X.   +9 more
europepmc   +1 more source

[Effect of ultrasound<b>-</b>guided erector spinae plane block on perioperative analgesia in middle<b>-</b>aged and elderly patients undergoing posterior cervical spine surgery: A prospective randomized controlled trial]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Jiang X, Xu L, Cui Y, Guo Y, Xu J, Cao L.   +5 more
europepmc   +1 more source

[Correlation between trimethylamine-N-oxide and cardiovascular metabolic markers]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zhang H, Peng H, Guo H, Hou T, Li Y, Zheng Y, Tan Y, Ye X, Zhang H, Yu H, Wang X, Fan M, Wu Y, Qin X, Li J, Chen D, Hu Y, Wu T, Wang M.   +18 more
europepmc   +1 more source