amund maage, head of research, contaminants & biohazards ......norwegian herring pacific herring...
TRANSCRIPT
Seafood Safety and Nutritional Facts
Amund Maage, Head of Research, Contaminants &
BiohazardsProfessor, food chemistry
Role in society
• Supply credible and neutral research based knowledge for use by government, consumers and industry
• Have an open and active communication of our research and expertise
• Contribute to higher education within nutrition
• Scientifically independent
Main aim
To be the most important research institute within fish nutrition, seafood safety, and health effects of eating seafood, both nationally and internationally
Risk asessment
Organization of the food area
Minister of health
and care servicesMinister of
agriculture and foodMinister of fisheries
Surveillance: farmed fish and wild catches
Regulated by EU (Directive 96/23)
Funded and sampled by theNorwegian Food Safety Authority
Analysed by NIFES
Motivated by EU’s upper limit.Norge is responsible not to export
seafood exceeding the limits
Funded by the governmentand by the industry
Analysed by NIFES
Seafood database 1994-www.nifes.no/seafooddata
• Sampling by theInstitute ofMarine Research (IMR)
• 30+ species, 4500 individualsamples collected
• Spot checks
• Frequency ofmonitoringdepending onspecies
75°N
72°N
74°N
73°N
76°N
70°N
69°N
68°N
67°N
71°N
66°N
62°N
64°N
61°N
63°N
65°N
58°N
60°N
57°N
59°N
6°W
4°W
5°W
3°W
0°E
2°W
1°W
1°E
2°E
3°E
5°E
4°E
6°E
7°E
10°E
9°E
11°E
8°E
12°E
18°E
13°E
15°E
14°E
16°E
17°E
23°E
19°E
20°E
21°E
22°E
27°E
25°E
24°E
28°E
26°E
29°E
30°E
34°E
31°E
33°E
32°E
35°E
41°E
37°E
36°E
38°E
39°E
43°E
40°E
42°E
Following species:
Herring:
Greenland halibut:
Mackerel:
Saithe:
Baseline - status
Cod:
New species where surveillance has started:
Haddock
Ling
Halibut
Tusk
Red-fish
Baseline study of Norwegian spring spawning herring (NSS herring)
• Largest fish stock
– 13 mill. tons in 2009
– 1 mill. ton captured
• Fillet samples
– 800 individual herring
– from 29 positions in theNorwegian Sea
• Analysed for
– Heavy metals and otherelements
– Dioxins and dl-PCBs
– PCB7
– PBDEs
Norwegian Sea
Low levels of contaminantsin NSS herring
Average Min Max EU limit
Lead 0.013 <0.01 0.10 0.3
Cadmium 0.010 <0.003 0.052 0.05
Mercury 0.039 <0.01 0.40 0.5
POPs in fillet(ng TE/kg ww or µ g/kg ww)
Heavy metals in fillet(mg/kg ww)
X 800
Average Min Max EU limit
Dioxins+
dl-PCB0.63 0.21 2.9 6.5
PCB6 4.3 1.2 21 75
PBDE7 0.47 0.091 3.1 -
Norwegian Sea
North Sea
Mackerel
Average Min Max
Age (year) 4.3 0 15
Length (cm) 33.4 18 44
Weight (g) 352 35 774
Fat content (g/100 g) 21.5 1.2 41
Median/Average
Min Max EU limit
Lead <0.02 <0.02 - 0.3
Cadmium 0.016 <0.004 0.16 0.05
Mercury 0.04 <0.01 0.36 0.5
X 850Age and weight
Heavy metals in fillet(mg/kg ww)
Prø vetakingsmåned
mars
april
juni
august
september
oktober
november
Low levels of POPs in Mackerel
POPs in fillet(ng TE/kg ww or µ g/kg ww)
X 800-850
Average Min Max EU limit
Dioxins+
dl-PCB0.87 0.12 9.7 6.5
PCB6 6.1 0.53 77 75
PBDE7 1.4 0.10 4.6 -
Prø vetakingsmåned
mars
april
juni
august
september
oktober
november
NorwegianSea
North Sea
Generally low levels ofdioxins, furans and
dioxin-like PCBs
Undesirables in som pelagic species:
Dioxinand dioxin-like PCBng TEQ/kg
Mercury,mg/kg
Brominatedflame-retardantsµ g/kg
DDT,µ g/kg
KolmuleBlue whiting
0,6 0,04 0,5 2,9
LoddeCapelin
0,5 0,01 0,1 5
Ø yepålNorway pout
n.a. 0,02 1,1 2,0
TobisSand eel
n.a 0,01 1,2 2,5
PolartorskPolar cod
0,3 0,01 0,04 n.a
HestmakrellHorse mackerel
1,1 0,18 4 7
n.a. = not analysed
• Base line studies:
• Follow up on baseline studies
• Spot samples
Monitoring
Surveillance program - fish feed
• Microbiology
• Heavy metals
• PCBs
• Pesticides (DDT, endosulphane toxaphene etc)
• Dioxins and dioxin-like PCBs
• Polybrominated flame retardants (BFR)
• Synthetical antioxidants
• Mycotoxins
• Selected vitamins and trace elements
• + + +
•Increased sampling the last years•Check levels against EUs maximum limits•Few samples exceed the maximum limits
Food of animal origin
EU’s directive 96/23 (prohibited substances and undesirable substances)
Fruit and vegetables:
Regulations EC 396/2005 (pesticides)
and EC 333/2007 (heavy metals)
Food legislation
Persistent organic pollutants, heavy metals, medical residues, pesticides, etc
Norway as all EEA countries
Undesirable substances in farmed fish
Report: www.nifes.no
Surveillance of farmed fish
The Norwegian Food
safety authority
0.4
0.6
0.8
1
1.2
1.4
1.6
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
ng
TEQ
/kg
Dioxin and dioxin-like PCB in farmedsalmon
Nifes.no and
Perelló et al, 2012
0
1
2
3
4
5
6
7
8
Mackerel NSS herring North sea
herring
Farmed
Atlantic
salmon
Wild
Atlantic
salmon
Farmed
trout
Cod Eggs Dairy
products
Meat
TEQ
ng/k
g
Dioksin and dioksinliknende PCBdata fra 2006-2011
Dioxin and dioxinlike PCBs in oily fishand other food
EU’s upper limit 6,5
Pesticides
EU’s upper limit (apples) 0,05
0
0.02
0.04
0.06
Apples Carrots Eggs Oranges Tomatoes Rice Salmon
Endosulfan, mg/kg
EU’s upper limit:Meat: 0,1
Tomato: 0,5Salmon: no limit
EFSA Journal 2013; 11(3):3130, pp 153 and 567www.nifes.no/sjomatdata
Endosulfan
Coctail effect: sum of the seafood
+ + = 7 ?
=++ 2 ?
+ + = ?
Seafood safety = Prerequisite
NutrientsHealth effects
IncreasedIntake ?
Nutrients in seafood
Vitamin D
Vitamin A
Vitamin B12
Selenium
Iodine
Protein
More
Omega-3
Foto: NIFES
?Less established knowledge:
• Mental illness, brain development, behaviour,
depression, diabetes
What is known about seafood and human health?
Established knowledge:
• Protect against development of heart disease
Uncertain:
• Cancer, obesity, osteoporosis etc ?
Marine omega-3 in seafood
0
1
2
3
4
5
6
7
8
g p
er
10
0 g
EPA and DHA in 100 g
EFSA 2010
European and Asian herring and mackerel
New data herring & mackerellTotal fat and EPA+DHA
Vitamin D
Vitamin D
Bone and teeth
Dietaryrecommendation
10 µg/day
Prevention of :• Cancer• Multiple sclerosis• Obesity• Diabetes type II
Improve:• Learning• Mental health
0
5
10
15
20
25
30
µg p
er
100 g
fille
t (w
et
weig
ht)
Vitamin D in 100 g
Reccommended daily intakeRecommended daily intake 10 µg
nifes.no
Fish as a dietary source of vitamin D
Herring is a particularly good vitamin D source
Norwegian herring Pacific herring North-Atlantic mackerel Japanese mackerel
(n=196) (n=109) (n=345) (n=103)
Depre
sjo
n 3
måneder
etter
fødsele
n
Marine omega-3 index during pregnancy (Markhus et al PlosOne 2013)
Highest depression score among the mothers with lowest omega-3 index
Survey among pregnant women outside Bergen
Po
st
part
um
ep
ressio
n
Fatty fish improved vitamin D status better
sleep!
32Hansen et al, J Clin Sleep Med 2014 May;10(5):567-75
Decreased actual wake time
Improved sleep efficiency
Improved daily functioning
Obesity/metabolic syndrom Learning, cognitive function
Two main topics:
FINS (Fish intervention studies)
Mainly funded by:
Cross-section studies
Obesity og type 2 diabetes
Vegetables
Beans and peas
Fruit
Full grain cereals
Fish and other seafood
«High energy» food
Pommes frites
Red meat
Processed meat
Sugar
Soft drinks
Most studied single component: Omega-3 fatty acids
Many well-
designed rodent
studies
Few human
studies
Omega-3 fatty acids may
protect against obesity
Nutrients and undesirables
DioxinsPCBDDT
HBCDCdHgPb
Marine omega-3Vitamin DProteinsSelenium
Iodine
+?
÷
Report from WHO/FAO (2011)
emphasize the net neurodevelopmental
benefits to offspring of fish consumption
by women of childbearing age,
particularly pregnant women
and nursing mothers, and the
neurodevelopmental risks of
not consuming fish
to offspring of such women;
Agree
In contrast to the cited conclusion of 2006, VKM concludes in this report that there is no reason for specific dietary limitations on fatty fish consumption
for pregnant women.
Conclusion:
UK 2004
EFSA 2005
Norway 2006/2014
USA 2006
Denmark 2003
Sweeden 2007
DioxinsLeadPCBDDT
Marine omega 3Vitamin DSelenium
Iodine
+
÷
FAO/WHO 2011
Eat more seafood, including farmed species and wild catches
THANKS FOR YOUR ATTENTION