Lutefisk is a traditional Norwegian Christmas dish, made of dry cod soaked in a lye solution before re-hydrated. We report measurements of tissue rheological properties of cooked Lutefisk. Surprisingly, we find that the elastic modulus does not seem to depend heavily on cooking time, cooking temperature, or the amount of salt, but depends instead mainly on the size of the fish fillets and can be affected by when the cod is fished during the season. Although salting and cooking of the Lutefisk strongly affect the visual aspect of fish fillets, these changes are not found to be correlated with the elastic modulus of the lutefisk when measured with a rheometer.
References
1.
2.
J. O.
Johansen
, Lutefisk: Tradisjon-Tilberedning-Tilbehør
(Cappelen Damm Faktum
, 2011
).3.
A.
Riddervold
, Lutefisken, Rakefisken og Silda i Norsk Tradisjon
(Novus Forlag
, 1990
).4.
5.
6.
N.
Chammem
, M.
Kachouri
, M.
Mejri
, C.
Peres
, A.
Boudabous
, and M.
Hamdi
, “Combined effect of alkali pretreatment and sodium chloride addition on the olive fermentation process
,” Bioresour. Technol.
96
, 1311
–1316
(2005
).7.
M. B.
Maldonado
, C. A.
Zuritz
, and M. V.
Assof
, “Diffusion of glucose and sodium chloride in green olives during curing as affected by lye treatment
,” J. Food Eng.
84
, 224
–230
(2008
).8.
See https://losangeleno.com/places/enduring-lutefisk/ for, “
The not-so-delicious Nordic dish lutefisk is being served – and celebrated – in Van Nuys
,” (2019
) (Last accessed 10/1/2021).9.
R. M.
Love
, I.
Robertson
, G. L.
Smith
, and K. J.
Whittle
, “The texture of cod muscle
,” J. Texture Stud.
5
, 201
–2012
(1974
).10.
E.
Dunajski
, “Texture of fish muscle
,” J. Texture Stud.
10
, 301
–318
(1980
).11.
J. M.
Barat
, S.
Rodriguez-Barona
, A.
Andrés
, and P.
Fito
, “Cod salting manufacturing analysis
,” Food Res. Int.
36
, 447
–453
(2003
).12.
D.
Skipnes
, O.
Johnsen
, T.
Skaara
, M.
Sivertsvik
, and O.
Lekang
, “Optimization of heat processing of farmed Atlantic cod (Gadus morhua) muscle with respect to cook loss, water holding capacity, color, and texture
,” J. Aquat. Food Prod. Technol.
20
, 331
–340
(2011
).13.
M. J.
Blikra
, D.
Skipnes
, and A. H.
Feyissa
, “Model for heat and mass transport during cooking of cod in a convection oven
,” Food Control
102
, 29
–37
(2019
).14.
B. T.
Lunestad
, D. H.
Grevskott
, I. S.
Roiha
, and C. S.
Svanevik
, “Microbiota of lutefisk, a Nordic traditional cod dish with a high pH
,” Food Control
90
, 312
–316
(2018
).15.
A.
Hassoun
, K.
Heia
, S.-K.
Lindberg
, and H.
Nilsen
, “Performance of fluorescence and diffuse reflectance hyperspectral imaging for characterization of lutefisk: A traditional norwegian fish dish
,” Molecules
25
, 1191
(2020
).16.
H. R.
Moskowitz
, “Psychorheology-its foundations and current outlook
,” J. Texture Stud.
8
, 229
–246
(1977
).17.
T.
Yoshida
, Y.
Tasaka
, and P.
Fisher
, “Ultrasonic spinning rheometry test on the rheology of gelled food for making better tasting desserts
,” Phys. Fluids
31
, 113101
(2019
).18.
J.-B.
Thomazo
, B.
Le Révérend
, L.-L.
Pontani
, A.
Prevost
, and E.
Wandersman
, “The ciliated structure as a particle detector
,” arXiv:2012.03832 (2021
).19.
L. N.
Murthy
, G. G.
Phadke
, V.
Siddaiah
, and R. K.
Boraiah
, “Rheological properties of washed and unwashed tilapia (Oreochromis mossambicus) fish meat: Effect of sucrose and sorbitol
,” Food Sci. Biotechnol.
26
, 1177
–1183
(2017
).20.
M.
Kamkar
, M.
Janmaleki
, E.
Erfanian
, A.
Sanati-Nezhad
, and U.
Sundararaj
, “Viscoelastic behavior of covalently crosslinked hydrogels under large shear deformations: An approach to eliminate wall slip
,” Phys. Fluids
33
, 041702
(2021
).21.
I. A.
Johnston
, M.
Abercromby
, and Ø.
Andersen
, “Muscle fibre number varies with haemoglobin phenotype in atlantic codas predicted by the optimal fibre number hypothesis
,” Biol. Lett.
2
, 590
–592
(2006
).22.
R. H.
Ewoldt
, M. T.
Johnston
, and L. M.
Caretta
, “Experimental challenges of shear rheology: How to avoid bad data
,” in Complex Fluids in Biological Systems
(Springer
, 2015
), pp. 207
–241
.23.
R. E.
Hudson
, A. J.
Holder
, K. M.
Hawkins
, P. R.
Williams
, and D. J.
Curtis
, “An enhanced rheometer inertia correction procedure (ERIC) for the study of gelling systems using combined motor-transducer rheometers
,” Phys. Fluids
29
, 121602
(2017
).24.
M.
Kent
and A. C.
Jason
, “Physics, fish and food
,” Phys. Technol.
13
, 202
–216
(1982
).© 2022 Author(s). Published under an exclusive license by AIP Publishing.
2022
Author(s)
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