Even though lysine and arginine treated uncooked sample indicated a reddish color, there was no significant difference in the color preference of any cooked products.
Sensory evaluation showed that panelists liked the arginine treated sample more than the STTP treated sample.
Adjusting pH of lysine and arginine (1.0 g/100 ml) to 8.0e8.7 resulted in shrimps
with comparatively same WHC during freezing and cooking with similar color change compared to treatment with STPP.
The results indicated high potential of using the amino acids, lysine and arginine,
as phosphate alternatives to improve the quality of white shrimp product in the frozen shrimp industry.