Table 2. The molecular weight distribution, proximate and essential amino acids composition of shrimp hydrolysate (SH) and krill meal (KM) (from product technical data sheets)

	SH1)	KM2)
Molecular weight (Da, % wet basis)
> 30,000	< 0.1	-
20,000–30,000	< 0.1	-
10,000–20,000	< 0.1	-
5,000–10,000	< 0.5	-
1,000–5,000	8	-
500–1,000	9	-
< 500	83	-
Proximate composition
Dry matter, DM (%)	96.7	92.6
Protein (% DM)	67.2	65
Lipid (% DM)	12.2	24
Ash (% DM)	10.3	11.8
Soluble protein (% total protein)	94	13
Total PUFA (% fatty acids)	40	23
Total omega 3 (% fatty acids)	15	20
EPA (% fatty acids)	6	10
DHA (% fatty acids)	6	5
Essential amino acids (products, % wet basis)
Arg	4.1	3.8
His	1.5	1.5
Ile	2.7	3.5
Leu	4.3	5.3
Lys	4.1	4.9
Met	1.3	2.1
Phe	2.9	3.1
Thr	2.4	3.0
Val	3.3	3.5

SH and KM were provided by DIANA AQUA, Aquaculture Division of DIANA, Member of SYMRISE Group, Elven, France.