Table 5.

Essential amino acid scores of diploid and triploid Hong Kong oysters, Crassostrea hongkongensis, in the non-reproductive and reproductive phases.

		Non-reproductive		Reproductive
Amino acid	Reference(mg/g protein)	Score 2N	Score 3N	Score 2N	Score 3N
Threonine	34	146	144	153	140
Valine	35	153	147	157	141
Methionine	25	74	78	72	81
Isoleucine	28	160	157	169	149
Leucine	66	109	103	113	100
Phenylalanine + tyrosine	63	138	134	142	130
Lysine	58	142	127	142	122
Histidine	19	128	132	123	130
Tryptophan	11	308	304	233	308
Total	339

Reference amino acid pattern for preschool children (2–5 years) (FAO/WHO/UNU, 1985). Each amino acid in the reference was presumed to score a value = 100. Score for each amino acid is expressed relative to the reference.