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Liquid-holding capa...
Liquid-holding capacity and structural changes in comminuted salmon (Salmo salar) muscle as influenced by pH, salt and temperature
- Artikel/kapitelEngelska1995
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LIBRIS-ID:oai:DiVA.org:ri-9260
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https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-9260URI
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https://doi.org/10.1016/S0023-6438(95)94599-7DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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The loss of liquid in salmon muscle comminuted with salt was studied as a function of pH and heating temperature. A factorial experiment was designed to compare the effects of; the raw material, NaCl concentration, pH, degree of comminution and heating temperature in order to evaluate both main effects and interaction effects. The liquid-holding capacity was measured by a low speed centrifugation net test. The changes in microstructure in the samples were investigated by light microscopy using fat- and protein-staining techniques. The heating temperature, pH, NaCl concentration, variation of raw material and degree of comminution influenced liquid loss according to a second-order interaction linear model. The interaction effect between low pH, low salt concentration and high temperature was strongest. Addition of salt extracted the myofibrillar proteins and resulted in a homogeneous protein matrix with few intact fibres and uniformly dispersed fat droplets. Liquid loss was closely related to the microstructure of the comminutions. When heated above 30 °C, enlarged pores and gaps, some of them forming channels, occurred in the protein matrix. In comminutions prepared with a low salt concentration and/or a low pH the more frequent presence of pores and gaps enhanced the liquid loss. © 1995 Academic Press Limited.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Kidman, SiwRISE,SIK – Institutet för livsmedelsforskning
(författare)
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Myklebust, R.
(författare)
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Olsen, R.L.
(författare)
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Hermansson, Ann-MarieRISE,SIK – Institutet för livsmedelsforskning
(författare)
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RISESIK – Institutet för livsmedelsforskning
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Lebensmittel-Wissenschaft + Technologie28:3, s. 329-3390023-64381096-1127
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