Abstract
High pressure processing (HPP) can shuck (open) shellfish, saving labor while conferring food safety and yield benefits. Mostly male New Zealand Greenshell™ mussels (Perna canaliculus) were HPP-shucked (3 min at 500 MPa, 30°C) and assessed during 6-days’ ice storage (0°C) for cooked yield, color, and texture compared with heat processed (1 min at 70°C) and untreated samples. HPP-treated mussels had improved yields but lost more weight during ice storage. Male mussels from all treatments became darker with ice storage. HPP-treated mussels had firmer adductor muscles, while their guts required higher maximum force but less energy to puncture them.
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