Xth IUPAC Symposium on Mycotoxins and Phycotoxins - Brazil

21 – 25 May 2000

OFFICIAL PROGRAMME

 

SUNDAY (21/5/00)

14:00 Registration

19:30 Opening Ceremony

20:30 Cocktail Party


MONDAY (22/5/00)

JOINT SESSIONS - MYCOTOXINS AND PHYCOTOXINS (Nobre Room)

Keynote Lecture: Global Significance of Mycotoxins and Phycotoxins

08:30-09:30 Chair: J Gilbert, UK

Keynote: E Boutrif, FAO, Rome, Italy

SESSION: ANALYTICAL DEVELOPMENTS ON PHYCOTOXINS

Chair: H van Egmond, The Netherlands

09:30-10.15 Plenary Lecture: M Quilliam, Institute for Marine Biosciences, Canada

Recent Developments in Analytical Methods for Marine Toxins

10:30-11:00 Coffee Break

11:00-11.45 Contributed Oral Papers:

A Gago-Martinez, Universidad de Vigo, Spain

Improvement in sample cleanup for the prechromatographic oxidation HPLC-fluorescence determination of paralytic shellfish toxins in naturally contaminated samples of shellfish and algae.

K J James, Cork Institute of Technology, Ireland

LC-MS Methods for the investigation of a new shellfish toxic syndrome - Azaspiracid poisoning (AZP)

11:45-12:30 Poster Session (Posters: on display entire day)

12:30-13:30 Lunch

MONDAY

JOINT SESSIONS - MYCOTOXINS AND PHYCOTOXINS (Nobre Room)

Session: Analytical DevelopmentS on Mycotoxins

Chair: P Scott, Canada

13:30–14:15 Plenary Lecture: G S Shephard, Programme on Mycotoxins and Experimental Carcinogenesis (PROMEC), Medical Research Council, South Africa

Analytical Methodology for Mycotoxins: Recent Advances and Future Challenges

14:15-15:00 Plenary Lecture: M W Trucksess, Food and Drug Administration, USA

Rapid (Thin Layer Chromatographic and Immunochemical Methods) for Mycotoxins in Foods and Feeds

15:15-15:45 Coffee Break

15:45-17.00 Contributed Oral Papers:

J Porter, R B Russell Agricultural Research Centre, USDA/ARS, Greece

Fusaric Acid (FA), other alkyl-picolinic acids (APAs) and fumonisin (FB1) by Fusarium Thapsinum and F.moniliforme: GC/MS analysis

R Schuhmacher, IFA-Tulln, Austria

Masked mycotoxins: Synthesis and determination of zearalenone-4-ß-glucopyranoside

E Anklam, EC Joint Research Centre, Ispra, Italy

Determination of aflatoxins in ground products of peanuts, almonds, pistachios, figs, corn and paprika by immunoaffinity cleanup and thin-layer chromatography

18:00-19:00 Satellite Meeting – Latin America Mycotoxicology Society (SLAM)


TUESDAY (23 May 2000) MYCOTOXINS (Nobre Room)

Session: Quality Assurance, Proficiency Testing and Methods Validatio

Chair: A Visconti, Italy

08:30-09:15 Plenary Lecture: A Boenke, European Commission, Belgium

Robust Analytical Processes for Mycotoxins – The backbone of measurement

strategies and risk analysis framework for food safety

09:30-10:30 Contributed Oral Papers:

J Gilbert, Ministry of Agriculture, Fisheries and Food, UK

Results from an international mycotoxin Proficiency Testing Scheme

R Krska, IFA-Tulln, Austria

Preparation and certification of reference materials for the determination of the mycotoxin zearalenone (ZON) in maize: Interim results.

M Solfrizzo, National Research Council, Italy

Determination of fumonisins B1 and B2 in corn based foodstuffs by high performance liquid chromatography after immunoaffinity clean-up - In house and interlaboratory validation

10:30–12:00 Coffee Break and Poster Session

12:00-13:00 Lunch

Session: Sampling

Chair: H Fonseca, Brazil

13:00–13:45 Plenary Lecture: T Whitaker, US Department of Agriculture-ARS, USA

Sampling Shelled Corn for Fumonisin

Session: Risk Assessment

Chair: S Page, USA

13:45–14:30 Plenary Lecture: G Speijers, National Institute of Public Health & the Environment, The Netherlands

Risk Assessment of Mycotoxins and Food Safety

14:45-15:45 Contributed Oral Papers:

R V Miller, Aerotech Environmental Inc, USA

Review of the risk assessment of satratoxin and other mycotoxins on human health in indoor environments.

M Carvajal, UNAM, Mexico

Digestive enzymes effect on aflatoxin B1 in maize tortilla

M A Slayne, Ministry of Agriculture, Fisheries and Food, UK

OTA in food in the UK

15.45-16:15 Coffee Break

Session: Roundtable : Analytical Methods for Developing Countries

16:15-17:15 Introduction and Chair: M Pineiro, LATU, Uruguay


TUESDAY
(23/5/00)

PHYCOTOXINS (Tiradentes Room)

Session: Occurrence of Phycotoxins and Human exposure

Chair: T Aune, Norway

08:30-09:15 Plenary Lecture: S Hall, Food and Drug Administration, USA

Seafood toxins: impacts and options

09:30–10:30 Contributed Oral Papers:

G R Shaw, National Research Centre for Environmental Toxicology, Australia

Toxicology and human health implications of the cyanobacterial toxin cylindrospermopsin.

V Magalhães, CCS-UFRJ, Brazil

Microcystins (cyanobacteria hepatotoxins) bioaccumulation in fish muscles: potential risk to human health.

10:30-12:00 Coffee Break and Poster Session

12:00-13:00 Lunch

Session: Risk Assessment of Phycotoxins and Safety of Seafood

Chair: H van Egmond, The Netherlands

13:00–13:45 Plenary Lecture: T Aune, Norwegian College of Veterinary Medicine, Norway

Risk Assessment of Toxins Associated with DSP, PSP and ASP in seafood

14:00–15:00 Contributed Oral Papers:

A Matthiensen, University of Dundee, UK

Biodegradation and biotransformation of microcystins aquatic bacteria in estuarine waters from the Patos Lagoon, RS, Brazil

J S Yunes, Unidade de Pesquisas em Cianobactéria – FURG, Brazil

Does salinity affect toxicity and toxin content of an estuarine strain of microcystis aeruginosa?

T Kuiper-Goodman, Health Welfare Canada, Canada

Risk assessment of microcystins in blue green algal health food products

15:00-15:30 Coffee Break


WEDNESDAY (24/5/00)


MYCOTOXINS (Nobre Room)

Session: Occurrence of mycotoxins and human exposure

Chair: M Miraglia, Italy

08:30–09:15 Plenary Lecture: A Pittet, Nestlé Research Center, Switzerland

Natural occurrence of mycotoxins in foods and feeds: A decade in review

09:30–10:30 Contributed Oral Papers:

Y Larondelle, Université Catholique de Louvain, Belgium

Lactational transfer of ochratoxin A in rabbits fed a naturally contaminated diet

S J MacDonald, Ministry of Agriculture, Fisheries and Food, UK

Assessment of exposure to ochratoxin A in the UK - relationship between dietary intake and plasma and urine levels

V Sewram, PROMEC, South Africa

Hair: A non-invasive matrix for assessing chronic exposure to fumonisin mycotoxins

10:30-11:00 Coffee Break

11:00–11:45 Contributed Oral Papers:

P G Mantle, Imperial College, London, UK

Nephrotoxic mycotoxins and renal disease

C Brera, Instituto Superiore de Sanità, Italy

Exposure assessment of ochratoxin A in lactating mothers and babies

Session: Toxicology- Mode of Action of Mycotoxins

Chair: W Bryden, Australia

11:45-12:30 Plenary Lecture: W P Norred, Richard B Russell Agricultural Research Center, USDA/ARS, USA

Toxicology - Mode of Action of Mycotoxins

12:30–13:30 Lunch


WEDNESDAY

MYCOTOXINS (Nobre Room)

13:30-14:30 Contributed Oral Papers:

R A Etzel, US Dept of Agriculture, USA

Acute pulmonary hemorrhage in infants associated with exposure to Stachybotrys Atra and other fungi

R P Sharma, University of Georgia, USA

Cytokine involvement in fumonisin-induced cellular toxicity

T Garland, Texas Veterinary Medical Diagnostic Laboratory, USA

Chronic canine aflatoxin poisoning and management of an epidemic

14:30-15:30 Coffee Break and Poster Session

15:30–16:30 Contributed Oral Papers:

I Oswald, INRA, France

Influence of dietary fumonisin B1 exposure on immunological and metabolic parameters in control or E.Coli-infected young pigs.

A Shlosberg, Ministry of Agriculture, Israel

Natural mycotoxicoses in fowl induced by diacetoxyscirpenol and T-2 Toxin – A diagnostic enigma.

A Pfohl-Leszkowicz, ENSAT, France

Effects of fumonisin B1 on cell signal transduction pathways: main role of MAPKs

WEDNESDAY (24/5/00)

PHYCOTOXINS (Tiradentes Room)

Session: Toxicology of Phycotoxins

Chair: Y Ueno, Japan

08:30-09:15 Plenary Lecture: A M Legrand, Institut Louis Malarde, French Polynesia

Toxicology of phycotoxins targetting the sodium channels

Session: Chemistry of Phycotoxins

Chair: P Burdaspal, Spain

09:15–10:00 Plenary Lecture: T Yasumoto, Japan Food Research Laboratories, Tama Laboratory, Japan

Chemistry of Phycotoxins - Structural Elucidation

10:00-10:40 Contributed Oral Paper:

H Naoki, Suntory Institute for Bioorganic Research, Japan

Structural determination of new ciguatoxin congeners by tandem mass spectrometry

Y Shimizu, University of Rhode Island, USA

Mystery of polyether toxin biosynthesis in dinoflagellates

10:40-11:00 Coffee Break

11:00-12:30 Roundtable nomenclature for phycotoxins

Introduction and chair: J M Fremy, AFSSA, France

12:30-13:30 Lunch

AFTERNOON : FREE


THURSDAY (25/5/00)

MYCOTOXINS (Nobre Room)

Session: Prevention and decontamination

Chair: R Krska, Austria

08:30-09:15 Plenary Lecture: R Lopez-Garcia, Mexico

Integrated mycotoxin management systems

09:15-10:30 Oral Contributed Papers:

E M Binder, Biomin GTI G.m.b.H, Austria

Microbial detoxification of mycotoxins in animal feeds

D R Ledoux, University of Missouri, USA

In Vitro binding of mycotoxins by adsorbents does not always translate into In Vivo efficacy

J M Frank, University of Surrey, UK

Development of critical control points for preventing ochratoxin A (OTA) accumulation in coffee

H Fonseca, CONAB-SGAS, Brazil

Evaluation of the efficiency of "Microton" as an adsorbent of mycotoxins in stored corn

10:30-11:00 Coffee Break

Session: Research on Mycotoxins in developing countries

Chair: M Pineiro, Uruguay

11:00-11:45 Plenary Lecture: D Rodriguez-Amaya, FEA, UNICAMP, Brazil

Research on mycotoxins in Latin America

11:45-12:30 Contributed Oral Papers:

L V Soares, State University of Campinas, Brazil

The effect of planting time on fumonisin production in corn

M R Hennigen, Ministério da Agricultura, Brazil

Fumonisins in maize genotypes grown in Argentina during two consecutive seasons

12:30–13:30 Lunch

THURSDAY

MYCOTOXINS (Nobre Room)

Session: Current fungal taxonomy and mycotoxins

Chair: J M Fremy, France

13:30-14:15 Plenary Lecture: R A Samson, Central Bureau for Fungal Cultures, The Netherlands

Current fungal taxonomy and mycotoxins

14:30-15:00 Coffee Break

15:00-16:15 Contribution Oral Papers:

G R Urbano, State University of Campinas, Brazil

Incidence of toxigenic fungi and ochratoxin A detection in coffee from three Brazilian regions

R G Cuero, Prairie View A&M University, Texas, USA

Interactive action of metal ions and fertilizer on mycotoxins formation: Effects on toxigenic fungal DNA/RNA, and growth

M Motomura, National Food Research Institute, Japan

Cloning of the O-methyltransferase gene (dmtA) involved in aflatoxin biosynthesis from Aspergillus parasiticus

W Langseth, National Veterinary Institute, Norway

Production of T-2 toxin by a Fusarium resembling F.Poae, and the occurrence of the toxin in Norwegian cereals

16:30 JOINT CLOSING CEREMONY


THURSDAY (25/5/00)

PHYCOTOXINS (Tiradentes Room)

Session: Toxicity produced by cyanobacteria

Chair: Y Ueno, Japan

09:30-10:15 Plenary Lecture: W W Carmichael, Wright State University, USA

Recent studies on Cyanotoxins; Toxins of Cyanobacteria (Blue-Green Algae)

10:30-11:00 Coffee Break

11:00-11:45 Plenary Lecture: S M F O Azevedo, Núcleo de Pesquisas Produtos Naturais-CCS, UFRJ, Brazil

Needs of Developing Countries for Phycotoxins

12:00-12:30 Contributed Oral Paper:

G S Shephard, PROMEC, South Africa

Application of a falling film photocatalytic reactor to the treatment of cyanobacterial microcystin LR in water

12:30-13:30 Lunch

16:30 JOINT CLOSING CEREMONY