Methane Reduction Potential of Brown Seaweeds and Their Influence on Nutrient Degradation and Microbiota Composition in a Rumen Simulation Technique

Autor: Susanne Künzel, Timur Yergaliyev, Katharina J. Wild, Hanna Philippi, Asta H. Petursdottir, Helga Gunnlaugsdottir, Chris K. Reynolds, David J. Humphries, Amélia Camarinha-Silva, Markus Rodehutscord

Publikováno v: Frontiers in Microbiology, Vol 13 (2022)

This study aimed to investigate the effects of two brown Icelandic seaweed samples (Ascophyllum nodosum and Fucus vesiculosus) on in vitro methane production, nutrient degradation, and microbiota composition. A total mixed ration (TMR) was incubated

Externí odkaz: https://doaj.org/article/eb829cadb0914de686eff429ae3f4658

Alcoholysis and Glyceride Synthesis with Immobilized Lipase on Controlled-Pore Glass of Varying Hydrophobicity in Supercritical Carbon Dioxide

Autor: Kristin Wannerberger, Björn Sivik, Helga Gunnlaugsdottir

Publikováno v: Enzyme and Microbial Technology. 22:360-367

Lipases from Humicola lanuginosa and Candida antarctica lipase B were adsorbed onto methylated controlled-glass beads with varying degrees of hydrophobicity. The effect of support hydrophobicity on the amount of lipase adsorbed was studied. The immob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::553cc3209205fbcea6bb3d37525bbc71
https://doi.org/10.1016/s0141-0229(97)00212-3

Lipase-catalyzed alcoholysis of cod liver oil in supercritical carbon dioxide

Autor: Björn Sivik, Helga Gunnlaugsdottir

Publikováno v: Journal of the American Oil Chemists' Society. 72:399-405

Enzymatic alcoholysis of cod liver oil, with an immobilized lipase, was carried out in supercritical carbon dioxide. The enzyme was catalytically active under the experimental conditions used. The reaction medium was investigated to preferentially ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd27277bba98ff9ce0efc682f1365cfd
https://doi.org/10.1007/bf02636078

Three extraction methods for determination of lipids in fish meal: Evaluation of a hexane/isopropanol method as an alternative to chloroform-based methods

Autor: Robert G. Ackman, Helga Gunnlaugsdottir

Publikováno v: Journal of the Science of Food and Agriculture. 61:235-240

Three different extraction methods were compared for the determination of lipids in both oxidised and antioxidant-stabilised brown fish meal. The three methods under investigation were those of Smith-Ambrose-Knobl using chloroform/methanol/water, Bli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0997c20bf586a3a691a2bb3382b35fa
https://doi.org/10.1002/jsfa.2740610216

Arsenic-containing long-chain fatty acids in cod-liver oil: a result of biosynthetic infidelity?

Autor: Alice Rumpler, Kenneth B. Jensen, Georg Raber, Kevin A. Francesconi, Mariko Katsu, Helga Gunnlaugsdottir, John S. Edmonds, Walter Goessler

Publikováno v: Rumpler, A, Edmonds, J S, Katsu, M, Jensen, K B, Goessler, W, Raber, G, Gunnlaugsdottir, H & Francesconi, K A 2008, ' Arsenic-containing long-chain fatty acids in cod-liver oil: a result of biosynthetic infidelity? ', Angewandte Chemie-International Edition, vol. 47, no. 14, pp. 2665-2667 . https://doi.org/10.1002/anie.200705405

tioned between hexane and aqueous methanol, and the polar phase subjected to preparative chromatography with sizeexclusion and anion-exchange media to yield a fraction enriched in polar arsenolipids. Analysis of this fraction by HPLC–inductively co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1aa020381d9bec14e928bb0a2ee6cf1e
https://pubmed.ncbi.nlm.nih.gov/18306198