23 results
Industry
PROJECT NUMBER • 2017-203
PROJECT STATUS:
COMPLETED

Risk from Diarrhetic Shellfish Toxins and Dinophysis to the Australian Shellfish Industry

This study first examined DSTs in spiked and naturally contaminated shellfish - Sydney Rock Oysters (Saccostrea glomerata), Pacific Oysters (Magallana gigas/Crassostrea gigas), Blue Mussels (Mytilus galloprovincialis) and Pipis (Plebidonax deltoides/Donax deltoides), using LC-MS/MS ...
ORGANISATION:
University of Technology Sydney (UTS)
Industry
PROJECT NUMBER • 2018-031
PROJECT STATUS:
COMPLETED

Assessing the Risk of Pathogenic Vibrio Species in Tasmanian Oysters

The South Australian Research and Development Institute (SARDI) in collaboration with the Tasmanian oyster industry and regulators, University of Tasmania and Plant and Food Research New Zealand undertook a survey of significant foodborne Vibrio species (Vibrio parahaemolyticus and Vibrio...
ORGANISATION:
University of Adelaide
Environment
PROJECT NUMBER • 2014-032
PROJECT STATUS:
COMPLETED

Improved understanding of Tasmanian harmful algal blooms and biotoxin events to support seafood risk management

The 2012 Tasmanian biotoxin event represents a paradigm shift for seafood risk management in Tasmania and Australia as a whole. The causative dinoflagellates are extremely difficult to identify by routine plankton monitoring, and are toxic at very low cell concentrations (50-100 cells/L). Sampling...
ORGANISATION:
University of Tasmania (UTAS)
Industry

Survey of Foodborne Viruses in Australian Oysters

Project number: 2013-234
Project Status:
Completed
Budget expenditure: $260,800.00
Principal Investigator: Valeria Torok
Organisation: SARDI Food Safety and Innovation
Project start/end date: 23 Feb 2014 - 22 Oct 2015
Contact:
FRDC

Need

Norovirus (NoV) is the leading cause of gastroenteritis outbreaks worldwide, and is commonly associated with shellfish. Between 2001-2010 seventeen Australian cases of suspected shellfish related NoV outbreaks were reported in OzFoodNet (Knope, 2011). More recently (March 2013) 400 people were reportedly affected by NoV following consumption of contaminated oysters from Tasmania.
Virus contamination in food poses major concerns for consumers and can impact export trade. The WHO/FAO working group (2008) on food-borne viruses, and European Food Safety Authority’s (EFSA) opinion (2011) ranked bivalves among the highest risk food groups in terms of NoV and hepatitis A virus (HAV). In 2011 the Codex Committee on Food Hygiene ratified a draft guideline on viruses in foods, with a specific annex on bivalves. It recommends that countries monitor for NoV and HAV in bivalves following high risk pollution events. Additionally, in early 2012 EFSA recommended the introduction of an acceptable NoV limit in oysters and the EU Community Reference Laboratory (2012) recommended an ‘absence’ criterion be applied for HAV in bivalves. Because of these impending international regulations (noting that some importing nations already require NoV testing), the Australian oyster industry members have indicated that they would like a more comprehensive evaluation of the prevalence of viruses in Australian oysters. There is little information on the baseline levels of NoV in Australian oysters. Although, a small pilot survey in oysters was conducted in production areas, more information is needed.
Recent developments made at SARDI in the use of molecular biology techniques for virus detection in foods would enable the occurrence of these viruses in bivalves to be determined through a virus prevalence survey. Similar surveys have been undertaken worldwide, including in the USA, UK, France and China, and might contribute to the development of market access strategies at the international level.

Objectives

1. 1 To design a statistically robust survey to evaluate virus occurrence in oyster growing areas in NSW, Qld, SA and Tas
2. 2 To identify the prevalence of NoV and HAV associated with Australian oysters at harvest
3. 3 To use the survey results to support trade and market access of Australian oysters
Environment
PROJECT NUMBER • 2015-001
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: Bonamiasis in farmed Native Oysters (Ostrea angasi)

This project was a collaborative study across three research organisations: Agriculture Victoria, CSIRO (Victoria) and the South Australian Research and Development Institute (SARDI). The overall aim of this collaborative project was to better understand many aspects of infection with the parasite...
ORGANISATION:
Agriculture Victoria
Industry
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