Protein quality of commercially important edible bivalves

Song, Jingjing; Luo, Cong; Lim, Leongseng; Cheong, Kit-Leong; Farhadi, Ardavan; Tan, Karsoon

doi:10.1080/10408398.2024.2315446

Cited by 7 publications

(1 citation statement)

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“…Heavy metals, including cadmium, lead, and mercury, can accumulate in aquatic organisms, posing significant health risks to both the aquatic species and humans consuming them. Monge-Ortiz et al analyzed five heavy metals in experimental diets and fish muscle and concluded that these levels typically show some variations but consistently remain below the risk thresholds [40]. These risks range from neurological damage to increased risk of chronic diseases, underscoring the need for rigorous monitoring and regulation of feed ingredients.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Alternative Sources of Proteins and Other Nutrients with Potential Applications in Fish Nutrition

Muntean,

Simedru,

Uiuiu

et al. 2024

Molecules

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The European Union’s (EU) agricultural self-sufficiency is challenged by its reliance on imported plant proteins, particularly soy from the Americas, contributing to deforestation and greenhouse gas emissions. Addressing the EU’s protein deficit, this study evaluates alternative protein sources for aquaculture, focusing on their nutritional value, elemental content, and polycyclic aromatic hydrocarbons (PAHs). Protein flours from gastropods (Helix pomatia, Arion lusitanicus, Arion vulgaris) and their hepatopancreas, along with plant-based proteins from food industry by-products (oilcakes, coffee grounds, spent brewer’s yeast), were analyzed. Results revealed that snail flour contained the highest protein content at 59.09%, significantly outperforming hepatopancreas flour at 42.26%. Plant-based proteins demonstrated substantial nutritional value, with coffee grounds flour exhibiting a remarkable protein content of 71.8% and spent brewer’s yeast flour at 57.9%. Elemental analysis indicated high levels of essential minerals such as magnesium in hepatopancreas flour (5719.10 mg/kg) and calcium in slug flour (48,640.11 mg/kg). However, cadmium levels in hepatopancreas flour (11.45 mg/kg) necessitate caution due to potential health risks. PAH concentrations were low across all samples, with the highest total PAH content observed in hepatopancreas flour at 0.0353 µg/kg, suggesting minimal risk of PAH-related toxicity. The analysis of plant-based protein sources, particularly oilcakes derived from sunflower, hemp, flax, and pumpkin seeds, revealed that these by-products not only exhibit high protein contents but present a promising avenue for enhancing the nutritional quality of feed. This study underscores the potential of utilizing gastropod and plant-based by-products as sustainable and nutritionally adequate alternatives to conventional feeds in aquaculture, contributing to the EU’s environmental sustainability goals.

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Section: Introductionmentioning

confidence: 99%