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Table 5 Lipid metabolism - parameters.

From: Long-term prediction of fish growth under varying ambient temperature using a multiscale dynamic model

Parameter Description Value Source
kq 1, k ls , k ld rate constants for the lipid metabolism reactions 1, 1, 0.1/μ mol/s assumed
kq 2, k xd rate constants for the lipid metabolism reactions 100, 0.3/μ mol2/s assumed
V fs maximal velocity of FA synthesis, estimated to produce rapid Hill reaction, according to [45] 60 estimated
β fs Hill coefficient FA synthesis 3 [45]
citrate concentration at half FA synthesis reaction 0.2 μ mol/g [45]
capacity of TAG deposition in the body 30% [63]
β ls exponential coefficient for TAG deposition, estimated from simulations producing slow Hill dynamics 2 estimated
V ls gain of the lipid synthesis function, estimated from simulation 1μ mol estimated
β xd Hill coefficient of the β-oxidation process 4 assumed
concentration of ATP at half saturation of β-oxidation process 7 μ mol/g [25, 64, 65]
V xd maximal velocity of β-oxidation 0.3 μ mol [53]
β ld Hill coefficient of TAG degradation. Estimated from [25, 66] and simulations to maintain reasonable Hill dynamics 4 estimated
concentrations of ATP at half saturation in the TAG degradation process 7.8μ mol/g [25, 66]
V ld maximal velocity TAG degradation. Estimated from [25, 66] and simulations to maintain reasonable Hill dynamics 10μ mol estimated
  1. Parameters in the lipid metabolism model.