Physical constant

P. pangasius

P. sutchi

Specific gravity (30°C)

0.97 ± 0.01

0.94 ± 0.02

Refractive index (30°C)

4.88 ± 0.25

5.49 ± 0.30

Co-efficient of viscosity 

448.96 ± 2.5

421.76 ± 2.1

Values are given as mean ± S.D. of triplicate experiments
Table 2: Physical properties of the lipids of Pangasius pangasius and Pangasius sutchi.