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Relevant bibliographies by topics / Laurencia obtusa

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Academic literature on the topic 'Laurencia obtusa'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Laurencia obtusa"

1

Martin, Julio D., Pascual Caballero, Jose J. Fernandez, Manuel Norte, Ricardo Perez, and Matias L. Rodriguez. "Metabolites from Laurencia obtusa." Phytochemistry 28, no. 12 (1989): 3365–67. http://dx.doi.org/10.1016/0031-9422(89)80348-6.

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2

Imre, Sedat, Hermann Lotter, Hildebert Wagner, and Ronald H. Thomson. "Epoxy-trans-isodihydrorhodophytin, ein neuer Metabolit aus Laurencia obtusa / Epoxy-trans-isodihydrorhodophytin, a New Metabolit from Laurencia obtusa." Zeitschrift für Naturforschung C 42, no. 5 (1987): 507–9. http://dx.doi.org/10.1515/znc-1987-0503.

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Abstract Laurencia obtusa, Red Algae, Rhodomelaceae, Acetylenic Ether Epoxy-trans-isodihydrorhodophytin, a new halogenated acetylenic bicyclic ether, has been isolated from a Laurencia obtusa variety, collected in the Marmara sea. Its structure was determined by spectroscopic methods and X-ray diffraction analysis.

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3

Kumajas, Jenny, and Soenandar Millian Tompunu Tengker. "Identifikasi gula spesifik pada aglutinin dari rumput laut." Fullerene Journal of Chemistry 4, no. 2 (2019): 34. http://dx.doi.org/10.37033/fjc.v4i2.51.

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Aglutinin atau lektin adalah protein atau glikoprotein yang mengikat gula secara spesifik. Substans tersebut dapat mengaglutinasi sel karena permukaan sel terdiri atas gula atau sakarida. Halymenia durvillaei, Laurencia obtusa dan Ulva fasciata mengandung aglutinin. Aglutinasi sel oleh aglutinin dapat dihambat oleh gula tertentu yang merupakan gula spesifiknya. Penelitian ini bertujuan untuk menentukan jenis gula spesifik pada aglutinin dari rumput laut Halymenia durvillaei, Laurencia obtusa dan Ulva fasciata. Penelitian ini menunjukkan bahwa gula spesifik pada agglutinin dari ekstrak Laurenci

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4

Hamouda, Ragaa A., Mervat H. Hussein, and Noura El-Ahmady El-Naggar. "Potential value of red and brown seaweed for sustainable bioethanol production." Bangladesh Journal of Botany 44, no. 4 (2018): 565–70. http://dx.doi.org/10.3329/bjb.v44i4.38571.

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Algae are renewable sources of feedstock for bioethanol that can be grown on non arable lands, non productive water sources and inexpensive culture systems. Red seaweed Laurencia obtusa and brown seaweeds Cystoseira compressa, Colpomenia sinuosa were analysed by determining sugar content by HPLC and converted into suitable fermentable feedstock by NaOH, H2SO4, HCl and H3PO4 at concentrations 1, 2, 3, 4 and 5% at 21°C of 20 minutes. The efficiency of hydrolysis significantly improved by 5% HCl for Laurencia obtusa at 42.84 g sugar/100 g dry biomass. Pretreatment of Cystoseira compressa and Colp

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5

Ayyad, S. N., J. Jakupovic, and M. Abdel-Mogib. "A sesquiterpene ether from Laurencia obtusa." Phytochemistry 36, no. 4 (1994): 1077–78. http://dx.doi.org/10.1016/s0031-9422(00)90495-3.

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6

Bawakid, Nahed O., Walied M. Alarif, Hajer S. Alorfi, et al. "Antimicrobial sesquiterpenoids from Laurencia obtusa Lamouroux." Open Chemistry 15, no. 1 (2017): 219–24. http://dx.doi.org/10.1515/chem-2017-0025.

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AbstractPurification of the organic extract of Laurencia obtusa Lamouroux by column chromatography and preparative thin layer chromatography provided four new compounds: a eudesmane-type sesquiterpenoid [eudesma-4(15),11-diene-5,7-diol (1)], a cuparane-type sesquiterpenoid [10-hydroxycuparaldehyde (2)], and two nor-cuparanes [3-hydroxy-15-nor-cuparan-10β-ol (3) and 2-bromo-3-hydroxy-15-nor-cuparan-10β-ol (4)]. Structural identification was made possible by comparison of spectral data with those reported in the literature. Compounds 3 and 4 are significant as nor-cuparanes are rarely isolated f

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7

Imre, Sedat, Zeynep Aydoğmuş, Hüseyin Güner, Hermann Lotter, and Hildebert Wagner. "Polybrominated Non-Terpenoid C15 Compounds from Laurencia paniculata and Laurencia obtusa." Zeitschrift für Naturforschung C 50, no. 11-12 (1995): 743–47. http://dx.doi.org/10.1515/znc-1995-11-1201.

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Two polybrominated C15-acetogenins (1,2) isolated from a Mediterranean sponge previously and a new polybrominated bicyclic ether with a bromoallenic side chain (3) were isolated from Laurencia paniculata and Laurencia obtusa respectively. The structures of these compounds were elucidated by spectroscopic methods.

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8

Kladi, Maria, Helen Xenaki, Constantinos Vagias, Panagiota Papazafiri, and Vassilios Roussis. "New cytotoxic sesquiterpenes from the red algae Laurencia obtusa and Laurencia microcladia." Tetrahedron 62, no. 1 (2006): 182–89. http://dx.doi.org/10.1016/j.tet.2005.09.113.

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9

Sethi, Poonam, and Nandhagopal Plant K. "ANATOMICAL STUDIES OF LAURENCIA OBTUSA (HUDSON) LAMOUROUX (CERAMIALES) OF RHODOPHYCEAE." Chemistry & Material Sciences Research Journal 2, no. 2 (2020): 42–46. http://dx.doi.org/10.51594/cmsrj.v2i2.86.

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Thallus of Laurencia obtusa of Rhodophyceae was studied and detailed micromorphological evaluation was done. Morphology of the thallus has been studied to aid pharmacognostic and phytochemical evidences to aid in taxonomic species identification. Parameters presented in this paper may be proposed to establish the authenticity of this red alga and can possibly help to differentiate this alga from its other species. Since the collections were made in the month of March, Laurencia was with few gametophytic thalli . The study revealed several interesting anatomical characters and its cellular deta

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10

Iliopoulou, Dimitra, Constantinos Vagias, Catherine Harvala, and Vassilios Roussis. "C15 Acetogenins from the red alga Laurencia obtusa." Phytochemistry 59, no. 1 (2002): 111–16. http://dx.doi.org/10.1016/s0031-9422(01)00407-1.

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Dissertations / Theses on the topic "Laurencia obtusa"

1

Freeman, Rebecca P. "Approaches to the total synthesis of laurenyne." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273163.

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Books on the topic "Laurencia obtusa"

1

Lopez, Albert. The natural products chemistry of the red algae Ptilota filicina and Laurencia obtusa. 1987.

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Book chapters on the topic "Laurencia obtusa"

1

Mihopoulos, N., C. Vagias, E. Mikros, M. Scoullos, and V. Roussis. "Novel Brominated Diterpenes from the Red Alga Laurencia obtusa." In Natural Products in the New Millennium: Prospects and Industrial Application. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9876-7_47.

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2

Guimaraens, Mariana A., Carlos Alberto Coimbra, and Ricardo Coutinho. "Modeling competition between Laurencia obtusa (Ceramiales, Rhodophyta) and Hypnea spinella (Gigartinales, Rhodophyta) at Cabo Frio Island, Rio de Janeiro, Brazil." In Fifteenth International Seaweed Symposium. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1659-3_38.

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