The abundance and low fat content of Pacific whiting
support Its use for the production of surimi. The
degradation of muscle proteins by myxosporidian secreted
proteinase(s) has been associated with its soft texture.
High residual activity is retained through the washing
process used in the production of surimi and precludes...
Both liquid and solid wastes from Pacific whiting surimi manufacturing were
characterized and value-added products were recovered. A proteinase in surimi wash
water (SWW) was determined to be cathepsin L with Mr 54,200 on SDS-substrate gel.
Heat treatment and acidification shifted the activity zone to M [subscript r] 39,500. No...
The results of SDS-PAGE and densitometry indicated that a significant amount of myofibrillar proteins was lost during surimi processing. Microfiltration (MF) was utilized to recover insoluble particulate. The MF-recovered proteins showed highly functional properties in gel hardness, cohesiveness, color, and water retention ability. The soluble proteins concentrated by ultrafiltration (UF)...
In surimi manufacturing, less than 25% of the total weight of the fish is utilized. This research focused on meat recovery from fish frames, the residual portion of the fish after filleting headed and gutted fish. A new technology, the water jet deboning (WJD) system, was tested. The WJD system...
The viability of using ohmic "resistance" heating as a process alternative to
inactivating the heat-stable softening enzyme in Pacific whiting surimi was
investigated. A fast heating rate through the enzyme-active temperature range
would reduce the damage to the gelling network in surimi-based products.
Simulating the ohmic heating process in surimi...
The effects of freeze-drying and flake freezing of surimi on biochemical and physical properties as affected by various storage conditions were examined. Using three cooking parameters shear stress and strain values were evaluated to measure gelation properties of surimi gels. Stress values increased up to 3 months and then decreased...
A heat stable protease was identified as the cause of textural degradation in cooked arrowtooth flounder (Atheresthes stomias) muscle. Maximum proteolytic activity in the fish muscle was observed between 55°C and 60°C and myosin heavy chain appeared to be the primary substrate for the enzyme. Degradation of this myofibrillar protein...
Myoglobin (Mb) was extracted from Pacific sardine and added to Pacific whiting surimi to measure its effects on protein gelation. The purity of Mb extract was determined by SDS-PAGE. Mb extracted using ethanol showed higher purity than Mb extract using ammonium sulfate. The addition of 0.2% Mb significantly reduced breaking...
The ability of salmon plasma protein (SPP) obtained from Chinook salmon at the Klaskanine Fish Hatchery (Astoria, OR) to inhibit protease enzymes found in Pacific whiting (PW) surimi and salmon mince as well as the effect of SPP on the gelation properties of PW surimi under various heating conditions was...