Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef

This study was carried out on 5 Laurencia species. They are Laurencia snackeyi, Laurencia nangii, Laurencia sp., Laurencia papilose, and Laurencia cribb. Five halogenated secondary metabolites were isolated from L. snackeyi. The halogenated secondary metabolites are (2Z., 6S·, 9R·)-chamigr-2, 5(I4)-...

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Main Author: Toh, Denise Yew Leng
Format: Academic Exercise
Language:English
Published: 2006
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/20131/1/Chemical%20diversity%20and%20biological%20activities%20of%20Halogenated%20metabolites%20from%20Red%20Algae%20Genus%20Laurencia%20from%20Carrington%20Reef..pdf
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author Toh, Denise Yew Leng
author_facet Toh, Denise Yew Leng
author_sort Toh, Denise Yew Leng
collection UMS
description This study was carried out on 5 Laurencia species. They are Laurencia snackeyi, Laurencia nangii, Laurencia sp., Laurencia papilose, and Laurencia cribb. Five halogenated secondary metabolites were isolated from L. snackeyi. The halogenated secondary metabolites are (2Z., 6S·, 9R·)-chamigr-2, 5(I4)-dien-8-one (80), Palisadin B (76), 5-acetoxypalisadin B (7), Aplysistatin (6), and 5f3-hydroxypalisadin B (81). The halogenated secondary metabolites were then tested against marine environmental bacteria, human pathogenic bacteria and yeast. (2Z., 6S·, 9R·)chamigr- 2, 5(l4)-dien-8-one (80) and Palisadin B (76) did not show any positive activity against aU of them 5-acetoxypalisadin B (7) and Aplysistatin (6) showed positive activity against 5 marine environmental bacteria which were Clostridium cellobioparum, Clostridium sordelli, Clostridium novyi, Vibrio arginolyticus and Vibrio parahaemolyticus. 5f3-hydroxypalisadin B (81) showed positive activity against 2 marine environmental bacteria which were Clostridium sordelli and Vibrio parahaemolyticus, 2 human pathogenic bacteria Vibrio chlolera and E. coli, and 2 different strains of Candida albicans yeast.
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spelling ums.eprints-201312018-06-04T00:18:06Z https://eprints.ums.edu.my/id/eprint/20131/ Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef Toh, Denise Yew Leng QH Natural history This study was carried out on 5 Laurencia species. They are Laurencia snackeyi, Laurencia nangii, Laurencia sp., Laurencia papilose, and Laurencia cribb. Five halogenated secondary metabolites were isolated from L. snackeyi. The halogenated secondary metabolites are (2Z., 6S·, 9R·)-chamigr-2, 5(I4)-dien-8-one (80), Palisadin B (76), 5-acetoxypalisadin B (7), Aplysistatin (6), and 5f3-hydroxypalisadin B (81). The halogenated secondary metabolites were then tested against marine environmental bacteria, human pathogenic bacteria and yeast. (2Z., 6S·, 9R·)chamigr- 2, 5(l4)-dien-8-one (80) and Palisadin B (76) did not show any positive activity against aU of them 5-acetoxypalisadin B (7) and Aplysistatin (6) showed positive activity against 5 marine environmental bacteria which were Clostridium cellobioparum, Clostridium sordelli, Clostridium novyi, Vibrio arginolyticus and Vibrio parahaemolyticus. 5f3-hydroxypalisadin B (81) showed positive activity against 2 marine environmental bacteria which were Clostridium sordelli and Vibrio parahaemolyticus, 2 human pathogenic bacteria Vibrio chlolera and E. coli, and 2 different strains of Candida albicans yeast. 2006 Academic Exercise NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/20131/1/Chemical%20diversity%20and%20biological%20activities%20of%20Halogenated%20metabolites%20from%20Red%20Algae%20Genus%20Laurencia%20from%20Carrington%20Reef..pdf Toh, Denise Yew Leng (2006) Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef. Universiti Malaysia Sabah. (Unpublished)
spellingShingle QH Natural history
Toh, Denise Yew Leng
Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title_full Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title_fullStr Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title_full_unstemmed Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title_short Chemical diversity and biological activities of Halogenated metabolites from Red Algae Genus Laurencia from Carrington Reef
title_sort chemical diversity and biological activities of halogenated metabolites from red algae genus laurencia from carrington reef
topic QH Natural history
url https://eprints.ums.edu.my/id/eprint/20131/1/Chemical%20diversity%20and%20biological%20activities%20of%20Halogenated%20metabolites%20from%20Red%20Algae%20Genus%20Laurencia%20from%20Carrington%20Reef..pdf
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