Layang Scad (Shortfin Scad) – Nutritional Value
A Nutrient-Dense Marine Resource for a Healthy Diet
Layang scad, also known as shortfin scad (scientific name: Decapterus macrosoma), is a pelagic schooling fish widely distributed across tropical and subtropical waters of the Indian and Pacific Oceans. This small but mighty fish offers an impressive nutritional profile that makes it a valuable addition to any healthy diet.
High-Quality Protein
Layang scad is an excellent source of high-quality protein. Research on shortfin scad waste hydrolysate has shown an average protein content of approximately 73%, with a high concentration of essential amino acids including glutamic acid (12.39%), aspartic acid (7.89%), glycine (7.15%), lysine (6.80%), arginine (6.38%), and leucine (5.99%). These amino acids play critical roles in muscle repair, immune function, and overall metabolic health.
Rich in Omega-3 Fatty Acids
Layang scad contains significant amounts of omega-3 polyunsaturated fatty acids, particularly EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Research indicates that round scad (Decapterus macrosoma) contains 0.9 mg/g of EPA and 3.4 mg/g of DHA. These essential fatty acids are vital for cardiovascular health, brain development, and reducing inflammation.
Essential Minerals and Vitamins
Layang scad is naturally rich in vitamin A, which plays an important role in protecting vision, promoting growth and development, and enhancing immunity. The fish also contains abundant minerals such as calcium, phosphorus, iron, and zinc, all of which are essential for maintaining normal physiological functions of the human body.
Collagen and Bioactive Compounds
The fish is also a good source of collagen and bioactive peptides with potential antioxidant properties. Studies on shortfin scad protein hydrolysate have demonstrated significant antioxidant activity, including DPPH radical inhibition (83.72%), hydroxyl radical inhibition (98.54%), and ferrous chelating activity (94.52%). These compounds contribute to overall health and may help combat oxidative stress.
Cardiovascular and Bone Health
With its rich content of calcium and vitamin D, layang scad helps strengthen bones and teeth. The combination of omega-3 fatty acids and high-quality protein further supports cardiovascular health.
A Sustainable Choice
As an abundant, fast-growing pelagic species, layang scad represents a responsible and environmentally sustainable seafood choice, with growing applications in both whole fish sales and value-added processing.
