Quality Evaluation of Alaska Pollock (Theragra chalcogramma) Roe by Image Analysis. Part I: Weight Prediction

Abstract

Roe is an important product of the Alaska pollock

Quality Evaluation of Alaska Pollock (Theragra chalcogramma) Roe by Image Analysis. Part II: Color Defects and Length Evaluation

“…The same one hundred and forty-two Alaska pollock (Theragra chalcogramma) roes described in the first part of this study were used (Balaban et al, 2012). The roes were already graded by plant personnel and placed in their appropriate bins in the processing line in a Kodiak, AK processing plant.…”

“…The traditional quality evaluation of pollock roe is done by human graders following a complicated set of criteria based on whether the roe is a single or double roe and based on its weight, intactness, color defects, and maturity, as discussed in Part I of this study (Balaban et al, 2012). For weight classification, the error rate was calculated as 13% by human graders.…”

Objective Quality Evaluation of Commercial Spicy Pollack Roe Products in Terms of Mechanical and Biochemical Properties

“…The roe obtained from Alaska pollack is commercially important, since it occupies only 5% of the fish weight but contributes about 31% of the commercial value of pollack products (Balaban et al, 2012). It is an important export product of the USA, accounting for 14,966 metric tons of total fishery products exported in 2013 (National Marine Fisheries Service (NMFS) ii) , Generally, prices for spicy pollack roe products fluctuate widely according to the quality of different manufacturers.…”

“…It is a member of the cod family and supports one of the largest single-species fisheries in the world (Smith 1981). It is harvested by Japan, Canada, Korea, Russia, and the USA, and its aggregate biomass was an estimated 18 million metric tons in the Gulf of Alaska, Bering Sea, and Sea of Okhotsk .The roe obtained from Alaska pollack is commercially important, since it occupies only 5% of the fish weight but contributes about 31% of the commercial value of pollack products (Balaban et al, 2012). It is an important export product of the USA, accounting for 14,966 metric tons of total fishery products exported in 2013 (National Marine Fisheries Service (NMFS) ii) , Generally, prices for spicy pollack roe products fluctuate widely according to the quality of different manufacturers.…”

Quality Assessing of Commercial Roe Products From Alaska Pollock Roe

“…The roe from pollock is commercially important, occupy 5% of the weight of the fish, and contribute about 31% of the value from pollock products (Balaban and Cirban 2012).…”