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Lipid Oxidation in ...
Lipid Oxidation in Fillets of Herring (Clupea harengus) during Ice Storage
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- Undeland, Ingrid, 1968 (författare)
- RISE,SIK – Institutet för livsmedel och bioteknik
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- Hall, Gunnar (författare)
- RISE,SIK – Institutet för livsmedel och bioteknik
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- Lingnert, Hans (författare)
- RISE,SIK – Institutet för livsmedel och bioteknik
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(creator_code:org_t)
- American Chemical Society (ACS), 1999
- 1999
- Engelska.
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Ingår i: Journal of Agricultural and Food Chemistry. - : American Chemical Society (ACS). - 0021-8561 .- 1520-5118. ; 47:2, s. 524-532
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Abstract
Ämnesord
Stäng
- The influence of ice storage on lipid oxidation, odor, antioxidants, water-soluble catalysts, and microorganisms was investigated in fillets of herring (Clupea harengus) during 15 days. Based on linear regression analyses of the data, significant rises (p ≤ 0.05) in lipid oxidation products were seen after 2−3 days and in “rancid” odor after 2.5 days. Peroxide value (PV), fluorescent product (FP), and ascorbic acid analyses were the chemical measures most strongly correlated to “rancid” odor (r = 0.97). Antioxidants decreased in the following order: α-tocopherol > ascorbic acid > glutathione peroxidase (GSH-px); however, GSH-px correlated best to the development of lipid oxidation products (rmean = −0.96). The activity of aqueous pro-oxidants, which were enzymatic in nature to a great extent, had decreased by 75% at day 15. No significant increase in total bacteria was seen until after 7 days. There were major local differences in both composition and stability throughout the fillet. Oxidation proceeded most rapidly in the tissue right under the skin, probably explained by its high initial pro-oxidative activity.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
Nyckelord
- Antioxidants
- herring
- ice storage
- lipid oxidation
- Clupea harengus
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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