Published April 1973. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
Reprinted April 1979. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
Reprinted July 1993. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
Published September 1975. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
This study examines the spatial characteristics
of the seafood processing industry on the Oregon Coast.
Three study areas are discussed: the Astoria area, the Newport
area, and the Coos Bay area. The industry is categorized
by four types of seafood processors. Types and
uses of processing and nonprocessing space are...
Published August 1988. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Hazelnuts are commonly consumed raw and are valued for their numerous health benefits and antioxidant properties. Increased foodborne illness outbreaks associated with Salmonella and Escherichia coli O157:H7 contamination of tree nuts and peanuts generate a need for improving agricultural sanitation procedures. Food-safe chemical sanitizers have shown promise for reducing pathogenic...
The past twenty years has seen the offshore outsourcing of post-harvest
fish processing gain unprecedented momentum. The growth in offshore
processing is a further stage in an increasingly globalised fisheries value
chain. Raw material is head and gutted, then frozen, and transported to
processing sites in Asia (especially China). The...
The processing industry is playing an increasingly important role in Vietnam’s overall economy. A study on the restructure in this sector across the Coastal Central South has demonstrated the dominating part that middlemen are taking in connecting the supply, represented by fishers and farmers, to demand, represented by processing enterprises....
The influence of protein adjuncts and variations in pH on the
cook-cool loss, moisture content, and texture of squid gels was
investigated. Break force (P [greater than or equal to] .025), deformation to break (P [greater than or equal to] .01)
and cook-cool loss (P [greater than or equal to]...
The objective of these studies was to develop an
analog from surimi that would resemble abalone.
Preliminary studies involved the standardization of batter
preparation conditions, such as pH adjustment, optimum
moisture content and batter mixing time. The texture of a
gelled analog prepared with different protein adjuncts
egg white, gluten...
Oysters are filter-feeding bivalves, which filter water for nutrients and often accumulate contaminants and human pathogens such as Vibrio parahaemolyticus and Vibrio vulnificus naturally occurring in the marine environment. These naturally occurring pathogens have been frequently isolated from raw shellfish, particularly oyster, in the United States and are recognized as...
The paper presents main achievements of the Vietnamese seafood industry in the last ten years (1998-2007) - a special period with revolutionary developments, in which seafood processing and export sector has gained breakthroughs in both quantity and quality, motivating the whole industry to take off. From a small and unknown...
In many fisheries, the harvesting pattern shows considerable intra-year variation. These fluctuations give
challenges for downstream firms in value chains where predictability and continuity in the flow of production are important. Seasonal harvesting may well be rational from an economic perspective, as migration patterns can give huge variations in catch...
The fish processing industry is the most important
industry in Iceland. The single most important
processing method is quickfreezing, and the major market
is in the United States. With increasing competition in
the market from countries like Canada, productivity of
fish processing plants is becoming increasingly
important.
This research focuses...
The credit crunch has had a dramatic effect within the seafood industry. Recent years saw a buoyant UK economy with increasing sales of chilled seafood material and a growing interest in sustainability. Credit tightening and declining consumer confidence has placed pressures on these trends. This is unlikely to be reversed...
Optimization of comminuting and heating conditions for surimi gel preparation obtained from three fish species: Alaska pollock (AP) (Theragra chalcogramma), Pacific whiting (PW) (Merluccius productus), and threadfin bream (TB) (Nemipterus spp.) was the focus of this study. Three parameters during comminution were separately evaluated: chopping time, chopping temperature, and salting...
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)...
Protein solubility of Pacific whiting muscle with isoelectric point at pH 5.5 was significantly affected by pH. The highest breaking force was measured from fish proteins treated at pH 11, while high deformation values were obtained at pH 2 and 11. Texture of gels made using the conventional method were...
Anserine and carnosine are water-soluble dipeptides that have antioxidant
properties and are found in the skeletal muscle of mammals and fishes. These
dipeptides are removed through the washing process in surimi production. The
objective of this research was to determine the concentration of anserine and
carnosine in surimi wash water...
This report deals with utilization of five species of flatfish caught in the Oregon trawl fishery for human food. Utilized fish are those kept and marketed (saleable) from the total catch. Discarded fish are small flatfish and unmarketable species. Herrmann and Harry (1963} reported nearly half the catch was of...
Vibrio parahaemolyticus is a Gram-negative, halophilic pathogen that occurs naturally in coastal and estuarine environments. This human pathogen is frequently isolated from a variety of seafood, particular oysters, and is the leading cause of gastroenteritis associated with seafood consumption. Several outbreaks of V. parahaemolyticus infections linked to consumption of raw...
Vibrio parahaemolyticus is a seafood-borne pathogen that can cause gastroenteritis in humans. This study investigated the effectiveness of refrigerated seawater (5°C) depuration on reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas). Raw Pacific oysters were inoculated with a mixed culture of five clinical strains of V. parahaemolyticus and depurated...
Fishery barometer surveys economic prospects and trends of fishery enterprises in Finland. The enterprises are divided into fishing, aquaculture, processing and the wholesale or retail trade. Since year 2000 the enterprises have been asked to evaluate their economic parameters, such as financial standing, turnover and investments. The present situation is...
In the fall of 2005, the NOAA Fisheries implemented a share-based management program in the Bering Sea and Aleutian Island crab fisheries. Allocations of harvest and processing quota were issued to vessel and plant owners based on historical landings, with a share matching requirement applied to 90% of harvest quota....
Yaquina Bay and River waters were sampled in May, 1951 "to determine the suitability of these waters for the propagation of fresh market shellfish." (p.1) Found that the intensity and extent of pollution had increased "markedly" since the previous survey of March, 1948. "The waters of the bay are grossly...
Vibrio parahaemolyticus is a foodborne pathogen recognized as the leading cause of acute gastroenteritis associated with consumption of raw and undercooked seafood, particularly raw oysters, with major symptoms of nausea, vomiting, abdominal cramps and diarrhea. It is estimated that 45,000 cases of V. parahaemolyticus infection occur each year in the...
Soluble surimi wash water (SWW) proteins could be recovered using chitosan (Chi) complexed with alginate (Chi-Alg) generating co-products for feed formulations. Chi with a degree of deacetylation (DD) of 84% complexed with Alg at a mixing ratio (MR) of 0.2 was used to study Chi-Alg concentration and treatment time protein...
Vibrio parahaemolyticus is a human pathogen which is prevalent in marine environment. Consumption of raw or undercooked seafood contaminated with V. parahaemolyticus can cause foodborne illness. This study investigated the application of probiotics in depuration for reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas) and the utilization of green...
A novel method for isolating fish proteins by shifting pH to high acid or high alkali pH was the focus of the study. Biochemical and physicochemical properties of various pH-treated soluble fish proteins as a function of ionic strength were determined. Effect of ionic strength and various storage conditions on...
Best available copy. In 1984, longstanding concerns about pollution in Yaquina Bay impelled the U.S. Food and Drug Administration to make a comprehensive sanitary survey of the Yaquina River, with particular emphasis on areas where oysters were grown. The report states that the oyster plots endured "sporadic poor water quality,"...
Staphylococcus aureus is a human pathogen capable of producing enterotoxins causing staphylococcal food poisoning, one of the most economically important foodborne diseases in the U.S. This pathogen may be introduced to pre-cooked tuna meat used for the production of canned tuna because significant manual handling occurs after cooking of the...
Pacific whiting and its by-products were good raw materials for high quality fish sauce production. Heat stable and salt activated enzymes were responsible for autolytic activity in Pacific whiting and by-products. According to temperature profiles of raw materials at various salt concentrations, two fermentation temperatures, 35°C and 50°C, were selected...
Least cost formulations for surimi seafood were studied
by linear programming (LP) and nonlinear programming (NLP).
The effects of water and starches on functional properties of
Alaska pollock and Pacific whiting surimi gels were
investigated. Six starches (modified potato starch, potato
starch, modified wheat starch, wheat starch, modified waxy corn...
This study is part of the research program on theme Post Harvest Management Strategy of Supply Chain For Thai Shrimp Products currently supported by the Department of Fisheries (DOF) and Post Harvest Technology Institution (PHT), Chiangmai University (CMU). That focuses on the cost efficiencies of 51 shrimp processing plants under...
This paper attempts to determine and analyze the factors affecting the value chain of tuna commodity in the Philippines. It also identifies the key players in the industry, and their roles and contributions in the value chain. The paper will utilize both primary and secondary data in the analysis. Secondary...
Biochemical properties, functional properties, and market potential of Pacific whiting (PW) fish sauce were investigated. Biochemical properties of fish sauce made from whole fish (W) and a mixture (1:1) of whole fish and surimi byproducts (WB) were compared. Market potential was evaluated through phone interviews and consumer panelists. Proteolysis was...
Production planning in fish processing is heavily dependent on the raw material supply. Because of the uncertainties associated with the quantity of catch and its composition, planning for production is a difficult task. Until recently the fish processing plants in Iceland also had to accept the entire loads of fishing...
Effects of moisture content, pH, and salt concentration on dynamic rheological properties and gel fracture quality of Pacific whiting surimi were investigated. Torsion tests showed that shear stress decreased rapidly and strain values decreased gradually as moisture concentration increased. As pH increased, fracture shear stress and strain values increased, whereas...
A structural model of the Pacific halibut fishery is developed. Hypothesis tests
are developed within the framework of the "new empirical industry organization" for
the exertion of market power by Pacific halibut processors in both the exvessel market
and the wholesale market. The relationship of market power exertion and IPHC's...
The effects of the residual salt of surimi on biochemical and physical properties as affected by various freeze and thaw cycles were examined. Fresh Alaska pollock (Theragra chalcogramma) surimi was mixed with 4.0% sugar, and 5.0% sorbitol, along with eight combinations of salt (0.4, 0.6, 0.8, and 1.0 % NaCl)...
Oregon Department of Environmental Quality (DEQ) permits for discharging seafood-processing wastes into adjacent estuarine waters expire July 31, 1974. Beyond this date, Oregon's seafood processors must adopt one or a combination of three options: curtailment of waste production, disposal outside of estuaries, or conversion of waste to some other product....
Coastal communities in the Pacific Northwest are looking for ways to increase the diversity of their economies in order to reduce the negative impacts of cyclic economic swings. The economic base of many coastal communities is directly tied to healthy, dynamic working waterfronts through fishing, recreation, tourism, ports, and allied...