Abstract
This study was aimed at comparatively analyzing the sterols, tocopherols and fatty acids from edible flesh and processing waste obtained from three shrimp species, utilizing rapid liquid chromatography (LC)-atmospheric-pressure chemical ionization (APCI)-tandem mass spectrometry (MS/MS) and gas chromatography-mass spectrometry (GC-MS). Results revealed the presence of significantly (p < 0.05) high proportions of health-beneficial omega-3 (n3) polyunsaturated fatty acids (PUFAs) in Argentine red shrimp (34.3% in waste and 38.2% in the flesh), compared to black tiger shrimp (16.5–24.2%) and whiteleg shrimp (13.2–22.6%). Among sterols, cholesterol was found most dominant, accounting in the range 349.4 (white shrimp flesh) to 559.3 µg/g fresh weight (FW) (black shrimp waste). Surprisingly, waste was found to contain a substantially higher amount of α-tocopherol, for instance, 21.7 µg/g FW in edible flesh and 35.3 µg/g FW in the waste of black tiger shrimp. The correlation analysis indicated that shrimp with low total contents of lipids might have higher proportions of health-beneficial long-chain (LC)-n3-PUFAs eicosapentaenoic (EPA) and docosahexaenoic acid (DHA). The fat quality indices, including the high ratios of hypocholesterolemic (h)/hypercholesterolemic (H) fatty acids, and lowest values of the atherogenic index (AI) and thrombogenic index (TI) indicated the health-beneficial potential associated with fat intake from red shrimp. Overall, a significant amount of health-beneficial compounds in edible flesh of studied shrimp confers its extraordinary nutritional benefits. Moreover, considering the richness of processing waste with these compounds, their valorization can be prompted.
Highlights
Shrimp are the most economically vital and globally traded commodity among crustaceans and all fish products [1]
Key nutritionally valuable lipophilic compounds were quantitatively analyzed in the edible flesh and processing waste utilizing the rapid and sensitive liquid chromatography (LC)–multiple reaction monitoring (MRM)–mass spectrometry (MS)/MS and gas chromatography (GC)
Edible flesh and waste of Argentine red shrimp (P. muelleri) health‐beneficial potential associated with fat intake from red shrimp
Summary
Shrimp are the most economically vital and globally traded commodity among crustaceans and all fish products [1]. Whiteleg shrimp (Penaeus vannamei) alone accounted for 4.9 million tons of production (52.9% of total crustacean production) [1]. The marine capture production is dominated by Argentine red shrimp (Pleoticus muelleri) which accounted for 256 thousand tons of production Shrimp are a key component of a Mediterranean diet, rich in protein, selenium, vitamin B12, vitamin E, omega-3 (n3) long-chain (LC)-polyunsaturated fatty acids (PUFAs), and astaxanthin, a potent antioxidant carotenoid [2]. Shrimp are a rich source of health-beneficial eicosapentaenoic acid (EPA, n3) and docosahexaenoic acid (DHA, n3) that play the key roles in key regulating body homeostasis [3]
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