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Halogenated organic molecules of Rhodomelaceae origin: chemistry and biology.
Natural Science Foundation of China ; Ministry of Science and Technology of China [2007AA09Z403]; Department of Science and Technology of Shandong Province [2006GG2205023]
Natural bromophenols from the marine red alga Polysiphonia urceolata (Rhodomelaceae): structural elucidation and DPPH radical-scavenging activity.
Three new natural occurring bromophenols, 3-(3-bromo-4,5-dihydroxyphenyl)-2-(3,5-dibromo-4-hydroxyphenyl)propionic acid (1), (E)-4-(3-bromo-4,5-dihydroxyphenyl)-but-3-en-2-one (2), and… Expand
Antioxidant capacity and lipophilic content of seaweeds collected from the Qingdao coastline.
Lipophilic extracts from 16 species of seaweeds collected along the Qingdao coastline were screened and evaluated for their antioxidant activities (AA) using the beta-carotene-linoleate assay system.… Expand
Bromophenols from the marine red alga Polysiphonia urceolata with DPPH radical scavenging activity.
Three new (1-3) and three known (4-6) bromophenols were isolated and identified from the marine red alga Polysiphonia urceolata. On the basis of extensive analysis of spectroscopic data, the… Expand
Antifeedant, antibacterial, and antilarval compounds from the South China Sea seagrass Enhalus acoroides
We investigated chemical constituents and the antifeedant, antibacterial, and antilarval activities of EtOH (ethanol) extracts of the South China Sea seagrass Enhalus acoroides. Eleven pure compounds… Expand
Isolation, characterization, and antioxidant activity of bromophenols of the marine red alga Rhodomela confervoides.
- Ke Li, X. Li, J. B. Gloer, B. Wang
- Chemistry, Medicine
- Journal of agricultural and food chemistry
- 25 August 2011
A total of 19 naturally occurring bromophenols, with six new and 13 known structures, were isolated and identified from the methanolic extract of the marine red alga Rhodomela confervoides. The new… Expand
Sesquiterpenes and Other Metabolites from the Marine Red Alga Laurencia composita (Rhodomelaceae)
Two new halogenated sesquiterpenes, (8 beta) 10 bromo-3-chloro-2,7-epoxychamigr-9-en-8-ol (1) and 2 bromo-3 chlorobisabola-7(14),11 diene 6,10 diol (3). and one new phytol derived diterpene,… Expand
Halogenated Sesquiterpenes from the Marine Red Alga Laurencia saitoi (Rhodomelaceae)
Four new halogenated sesquiterpenes, 10-bromo-3-chloro-2,7-epoxychamigr-9-en-8a-of (1), 2,10 beta-dibromochamigra-2,7-dien-9 alpha-ol (2), (9S)-2-bromo-3-chloro-6,9-epoxybisabola-7(14),10-diene (3),… Expand
New nitrogen-containing bromophenols from the marine red alga Rhodomela confervoides and their radical scavenging activity.
In addition to nine known bromophenol derivatives, five new nitrogen-containing bromophenols were isolated from an ethyl acetate extract of the marine red alga Rhodomela confervoides. By using… Expand
[Triterpenoids and steroids from Excoecaria agallocha].
- Min-Qing Tian, Guang-ming Bao, N. Ji, X. Li, B. Wang
- Chemistry, Medicine
- Zhongguo Zhong yao za zhi = Zhongguo zhongyao…
- 1 February 2008
OBJECTIVE To study the chemical constituents of Excoecaria agallocha L. METHOD The constituents were isolated and purified by repeated column chromatography and their structures were elucidated by… Expand