云的英文
pangoThe Chemical Structure of Agar from Gracilaria
compressa (C. Agardh) Greville, G. cervicornis (Turner) J. Agardh, G. damaecornis J. Agardh and G.
getboreddomingensis Sonder ex Kützing (Gigartinales,
Rhodophyta)
期刊名称： Botanica Marina
respects
作者： M.,Lahaye,W.,Yapheparadoxically
年份： 1989年脚本是什么
benny差人期号： 第4期
摘要：The chemical structure of agar fractions obtained from Gracilaria compressa, G. cervicornis, G. damaecornis and G. domingensis with a quential solvent extraction has been determined by 13C-NMR spectroscopy. Gracilaria compressa agar consists of agarobio, pyruvated agarobio and a lo
tarcevaw concentration of 6-Omethylated agarobio repeating units; G. cervicornis and G. domingensis agars are compod of 6-O-methylated agarobio, agarobio-6-sulfate, agarobio, and a repeating unit with 4-O-methyl-α-L-galacto; finally, G. damaecornis agar is made of the same repeating units of the latter agars plus agarobio-4-sulfate. From the four algae, a fraction enriched with pyruvated or sulfated repeating units was obtained in water at room temperature. An extract esntially compod of only 6-O-methylated,agarobio repeating
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