aromatic ring 中文意思是什麼
aromatic ring
解釋
芳環-
Elimination of an alkyl chain substituted on an aromatic ring results in the appearance of free radicals.
在一芳香環上一個取代烷鏈的消失，結果出現自由基。 -
Bc asphaltenes similar to petroleum asphaltenes and consist of aromatic nuclei, aliphatic chains, and naphthenic ring structures combined in three - dimensional network. but black carbon asphaltenes contains more aromatic carbon, oxygen - function groups, and less aliphatic chains
但碳黑瀝青質與原油瀝青質也是不同的，碳黑瀝青質的分子結構中含有更多的芳香結構組分和含氧基團，較少的脂肪側鏈組分。 -
The reaction pathways were proposed as follows : firstly, hydroxylation of aromatic ring, then ring cleavage forming dicarboxylic acid and eventually oxidation to inorganic carbon
其機理為：首先是苯環羥基化，然後環破裂生成二元羧酸，最後二元羧酸氧化降解為二氧化碳和水。 -
The pocket accommodating the aromatic ring of phenylalanine is formed predominantly by hydrophobic side - chains, including those of ile10, ile13, prol50, leul75, leul79, phe209, ser211 and val221 ; whilst the amino group and carboxylate group of phenylalanine is coordinated by asp6, asp7, gln151 and ser180. the n - terminal region is found to be important to the function of arog. point mutation reveals that residue substitution of ilelo to ala10 leads to desensitization in the presence of 1 mm phenylalanine, simultaneously, exhibits a dramatic decrease in enzymatic activity
綜合前人的研究和本研究工作的實驗數據，得出以下結論： 1 ）在arog的反饋抑制位點供苯丙氨酸結合的疏水口袋由asp6 、 asp7 、 ile10 、 ile13 、 pro150 、 gln151 、 leu175 、 leu179 、 ser180 、 phe209 、 ser211和val221等12個氨基酸殘基構成； 2 ）苯丙氨酸結合的疏水口袋分為兩個區域，與苯丙氨酸的苯環發生疏水作用的區域由ile10 、 ile13 、 pro150 、 leu175 、 leu179 、 phe209和val221的側鏈構成，而asp6 、 asp7 、 gln151和ser180的側鏈構成了與苯丙氨酸的氨基和羧基相互作用的區域。 -
Aromatic ring hydroxylation
芳環羥化 -
Most proteins have amino acids with aromatic ring, so they have yellow reaction. phenylalanine is not easy to nitrify, so it is necessary to add in a little vitriol oil
多數蛋白質分子含有帶苯環的氨基酸，所以都會發生黃色反應。苯丙氨酸不易硝化，需加少量濃硫酸后才能夠發生黃色反應。
分享友人