Blar i Fiskeridirektoratets digitalarkiv på forfatter "Brækkan, Olaf R."
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The fatty acid composition of herring oils
Lambertsen, Georg; Brækkan, Olaf R. (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 13, Research report, 1965)Herring oil production in different areas of the world has been reviewed, and the possible variations of the fatty acid composition has been discussed. The literature on the determination of fatty acids in such oils has ... -
The fluoride contents in some Norwegian fish products and other marine products
Søvik, T.; Brækkan, Olaf R. (Fiskeridirektoratets skrifter, Serie ernæring;Vol. 2, No. 1, p. 1-6, Working paper, 1981) -
The relation between the concentration of some main elements and the stages of maturation of ovaries in cod (Gadus morrhua)
Julshamn, Kåre; Brækkan, Olaf R. (Fiskeridirektoratets skrifter, Serie ernæring;Vol. 1, No. 1, p. 1-15, Working paper, 1976) -
The selenum content in some Norwegian fish products
Egaas, Eliann; Brækkan, Olaf R. (Fiskeridirektoratets skrifter, Serie ernæring;vol. 1, No. 2, p. 87-91, Working paper, 1977) -
Vitaminer i Norsk fisk I. Nikotinsyre-, riboflavin-, pantotensyre-, vitamin B12- og vitamin A-innholdet i hel fisk og forskjellige organer fra fersk sild (Clupea harengus) og makrell (Scomber scombrus).
Brækkan, Olaf R.; Probst, Ada (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 2, No. 13, Research report, 1953)Fresh samples of herring and mackerel were collected during respectively February and May 1952. The samples were minced or homogenized and stored at - 15° C during the investigations. Niacin, riboflavine and pantothenic ... -
Vitaminer i Norsk fisk II. Vitaminer i forskjellige organer fra makrellstørje (Thunnus Thynnus) fanget utenfor Norges vestkyst.
Brækkan, Olaf R. (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 3, Research report, 1955)Fresh samples of different organs from tuna fish (Thunnus thynnus) were collected during the summer 1952. The samples represented 100 -150 fishes and were minced and stored at -15° C during the investigation. Niacin, ... -
Vitaminer i Norsk fisk III. Vitaminer i forskjellige organer fra de viktigste torskefisker (Gadidae) fanget langs Norskekysten
Brækkan, Olaf R. (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 6, Research report, 1958)Cod (Gadus morrhua), coalfish (Gadus virens), pollack (Gadus pollachius), haddock (Gadus æglefinus), ling (Molva molva) and torsk (Brosmius brosme) have been investigated. Fresh samples were collected, usually from alive ... -
Vitaminer i Norsk fisk IV. Vitamin B6 og biotin i forskjellige organer fra torskefisker (Gadidae) fanget langs Norskekysten
Brækkan, Olaf R.; Boge, Gjermund (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 12, Research report, 1965)The species cod (Gadus morrhua), coalfish (Gadus virens), ling (Molva molva) and torsk (Brosmus brosme) have been investigated. The samples were collected from newly caught fish and analysed fresh or after storage at below ... -
Vitamins and the Reproductive Cycle of Ovaries in Cod (Gadus morrhua)
Brækkan, Olaf R. (Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 7, Research report, 1958)The relation between the contents of the B-vitamins pantothenic acid, riboflavin, niacin, vitamin B12 and biotin and the reproductive cycle of the ovaries in cod has been investigated. Pantothenic acid showed a unique ...