Acerola Fruit as a Possible Antimelanotic Agent in White Shrimp (Litopenaeus vannamei)

Table 1

QIM scheme developed specially for this research.

Quality parameter	Description	Score
Odor	Fresh, smooth as seaweed	0
	Faint, reminiscent of sea salt	2
	Light ammonia sent	4
	Heavy ammonia sent, putrid	6
Melanosis	Absent	0
	Slight, small isolated black spots, occurring in up to 50% of the sample’s shrimp	2
	Moderate, small isolated black spots, occurring in over 50% of the sample’s shrimp	4
	Moderate, larger black stains, occurring in up to 50% of the sample’s shrimp	6
	Heavy, larger black stains, occurring in over 50% of the sample’s shrimp	8
	Heavy blackening of the shrimp as a whole, occurring in 100% of the sample’s shrimp	10
Texture	Normal	0
	Softened	2
Shell	Strongly adhered	0
	Mildly adhered	2
	Weakly adhered	4
Head	Strongly adhered	0
	Mildly adhered	2
	Weakly adhered	4
Appearance	Excellent	0
	Great	2
	Good	4
	Bad	6
	Awful	8
	Inacceptable	10
Quality Index (QI) total		0–36