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  • Codium iyengarii  (2)
  • Rhodophyta  (2)
  • algae  (2)
  • 1
    Electronic Resource
    Electronic Resource
    A sterol glycoside from marine green alga Codium iyengarii
    Amsterdam : Elsevier
    Phytochemistry 31 (1992), S. 1429-1431 
    Details
    ISSN: 0031-9422
    Keywords: 3-O-β-d-galactopyranosyl-stigmasta-5,25-diene ; Chlorophyta ; Codium iyengarii ; green alga ; sterol glycoside
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0031-9422(92)80311-2
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Sterol composition of marine algae from Karachi coast of Arabian Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/16031 | 12051 | 2015-01-29 11:03:37 | 16031 | University of Karachi. Marine Reference Collection Centre
    Details
    Publication Date: 2021-06-25
    Description: During the course of chemical investigation of marine algae collected from Karachi coast of Arabian Sea, five sterols named as sarangosterol(1), 23-methyl cholesta-5, 25-dien-3ß-ol(2) from Endarachne binghamiae (brown alga), sargasterol(3) from Dictyota indica (brown alga), cholesterol(4) from Laurencia obtusa (red alga) and clerosterol(5) from Codium iyengarii (green alga) have been isolated. Their structures were elucidated with the help of spectroscopic means.
    Keywords: Chemistry ; sterols ; marine algae ; Endarachne binghamiae ; Dictyota indica ; Laurenica obtusa ; Codium iyengarii ; Karachi ; Pakistan ; Arabian Sea
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 57-64
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  • 3
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    Fatty acid composition of three species of Hypnea (Gigartinales, Rhodophyta) from Karachi coast (2021)
    In:  http://aquaticcommons.org/id/eprint/16025 | 12051 | 2015-01-26 09:30:42 | 16025 | University of Karachi. Marine Reference Collection Centre
    Details
    Publication Date: 2021-06-25
    Description: Hypnea musciformis (Wulf.) Lamour., H. pannosa J. Ag. and H. valentiae (Turn.) Mont., collected from the northern Arabian Sea coast of Pakistan, have been investigated for their fatty acid compositions through GC-MS. Palmitic acid was present in largest quantity (55-57%) and oleic was the major (7.6-8.4%) unsaturated fatty acid. Pentacosanoic and hexacosenoic acids are being reported for the first time from any species of Hypnea. The three species differed remarkably due to their habitat ecology.
    Keywords: Biology ; Chemistry ; Fatty acid ; Hypnea spp. ; Rhodophyta ; Karachi ; Pakistan
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 7-10
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  • 4
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    A taxonomic study of some red algae commonly growing on the coast of Karachi (2021)
    In:  http://aquaticcommons.org/id/eprint/17663 | 11966 | 2015-09-16 11:29:33 | 17663 | University of Karachi. Marine Reference Collection and Resource Centre
    Details
    Publication Date: 2021-06-26
    Description: Eighteen commonly occurring species of marine benthic red algae, i.e., Asparagopsis taxiformis (Delile) Trevisan, Bangia atropurpurea (Roth) C. Agardh, Centroceras clavulatum (C. Agardh) Montagne, Calliblepharis fimbriata (Greville) Kiitzing, Coelarthrum muelleri (Sonder) B¢rgesen, Cottoniella filamentosa (Howe) B¢rgesen, Gracilariafoliifera (Forsskai) B¢rgesen, Halymenia porphyraeformis (B¢rgesen) Parkinson, Hypnea muscifor:mis (Wulfen) Lamouroux, Hypnea valentiae (Turner) Montagne, Laurencia obtusa (Hudson) Lamouroux, Me!anothamnus somalensis Bomet et Falkenberg, Porphyra vietnamensis Tanaka et Pham-hoang H6, Sarconema filiforme (Sonder) Kylin, Sebdenia flabellata (J. Agardh) Parkinson, Scinaia fascicularis (B¢rgesen) Huisman, Scinaia hatei B¢rgesen, and Solieria robusta (Greville) Kylin were collected from coastal areas near Karachi (Pakistan) and taxonomically investigated. All the investigated seaweeds are taxonomically known species. During this study, Melanothamnus somalensis is reported for the first time from northern Arabian Sea and Asparagopsis taxiformis, Bangia atropurpurea, Cottoniella filamentosa, Gracilaria foliifera, Halymenia porphyraeformis, Melanothamnus somalensis, Sarconema filiforme, Sebdenia flabellata, Scinaia fascicularis, and Solieria robusta are taxonomically described for the first time from the coast of Pakistan.
    Keywords: Biology ; Oceanography ; Rhodophyta ; morphology ; anatomy ; reproduction ; ecological notes ; marine algae ; northern Arabian Sea ; Pakistan
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 113-136
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  • 5
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    Fatty acid composition of more brown seaweeds (Phaeophyta) from the coast of Karachi (2021)
    In:  http://aquaticcommons.org/id/eprint/19137 | 12051 | 2015-12-11 12:11:37 | 19137 | University of Karachi. Marine Reference Collection and Resource Centre
    Details
    Publication Date: 2021-07-13
    Description: Six species of multicellular, thalloid, brown algae, belonging to five genera of the classes Laminariophyceae and Fucophyceae were collected from the coastal areas of Buleji near Karachi (Pakistan) during October 1997 and February 1998. They were extracted in chloroform: methanol, saponified, subjected to column chromatography (CC, TLC), esterified and analysed for fatty acid (FA) composition initially by gas-liquid-chromatography (GLC) and finally by gas chromatography-mass spectrometry (GC-MS). They displayed only a few SCFAs, PUFAs and substituted FAs, no VLCFA, C22 UFA, CFA, DCFA and monoynoic FA, large amount of CI6:0, very large quantity of C18:1, very small RCCL and FA-diversity, C18 UFAs up to four DBs, C20 UFAs up to three DBs only. They were characterized by the largest amount of C18:1, lowest degree of unsaturation of C20 UFAs, lack of C22 UFAs, the shortest RCCL and the smallest FA-diversity as compared to other phyla.
    Keywords: Biology ; Chemistry ; algae ; Phaeophyta ; Fucophyceae ; Laminariophyceae ; fatty acids ; Pakistan
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 103-108
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  • 6
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    Fatty acid composition of some brown seaweeds (Phaeophyta) from the coast of Karachi (2021)
    In:  http://aquaticcommons.org/id/eprint/19058 | 12051 | 2015-12-11 12:08:04 | 19058 | University of Karachi. Marine Reference Collection and Resource Centre
    Details
    Publication Date: 2021-07-13
    Description: Ten species of filamentous and multicellular thalloid algae (Phaeophyta) belonging to six genera of the class Dictyophyceae were collected from different seawater habitats of Karachi, Pakistan at the northern boundary of the Arabian Sea during September 1997 and July 1998. They were extracted in chloroform: methanol, saponified, subjected to column chromatography (CC, TLC), esterified and analysed for fatty acid (FA) composition initially by gas-liquid-chromatography (GLC) and finally by gas chromatography-mass spectrometry (GC-MS). Algae of the classes Laminariophyceae and Fucophyceae (Phaeophyta) displayed only a few SCFAs, PUFAs and substituted FAs, no VLCFA, C22 UFA, CFA, DCFA and monoynoic FA, large amount of C16:0, very large quantity of C18:1, very small RCCL and FA-diversity, C18 UFAs up to four DBs, C20 UFAs up to three DBs only. They were characterized by the largest amount of C18:1, lowest degree of unsaturation of C20 UFAs, lack of C22 UFAs, the shortest RCCL and the smallest FA-diversity as compared to other phyla.
    Keywords: Biology ; Chemistry ; fatty acids ; algae ; Dictyophyceae ; Phaeophyta ; Karachi ; Pakistan
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 39-48
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