NZQA registered unit standard
18494 version 3
Page 1 of 3
Title
Explain basic seafood biochemistry
Level
4
Credits
10
Purpose
People credited with this unit standard are able to: explain the
biochemical composition of seafood and the impact of seasonal
changes; explain the basic structure of proteins and lipids in
seafood and the biochemical importance of water in seafood;
and explain the biochemical basis for common post mortem
changes in seafood products.
Classification
Seafood > Seafood Processing
Available grade
Achieved
Explanatory notes
None.
Outcomes and evidence requirements
Outcome 1
Explain the biochemical composition of seafood and the impact of seasonal changes.
Evidence requirements
1.1
The explanation includes an outline of the biochemical composition of seafood.
1.2
The explanation includes the seasonal changes in composition and the
consequent impacts on processing characteristics.
Outcome 2
Explain the basic structure of proteins and lipids in seafood and the biochemical
importance of water in seafood.
Evidence requirements
2.1
The explanation includes the structure of proteins in seafood in terms of
primary, secondary, tertiary, and quaternary protein structure.
2.2
The explanation includes the structure of lipids in seafood.
2.3
The explanation includes the biochemical importance of water in seafood.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
18494 version 3
Page 2 of 3
Outcome 3
Explain the biochemical basis for common post mortem changes in seafood products.
Evidence requirements
3.1
The explanation includes the reactions that lead to oxidation and rancidity in
seafood products.
3.2
The explanation includes a description of protein denaturation and the
consequences of this process on seafood quality.
includes but is not limited to – texture changes, water holding
capacity.
Range
Planned review date
31 December 2015
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 August 2001
31 December 2012
Review
2
23 January 2009
31 December 2012
Review
3
18 February 2011
N/A
Accreditation and Moderation Action Plan (AMAP) reference
0123
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, or
an inter-institutional body with delegated authority for quality assurance, before they can
report credits from assessment against unit standards or deliver courses of study leading
to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
18494 version 3
Page 3 of 3
Comments on this unit standard
Please contact the Primary Industry Training Organisation standards@primaryito.ac.nz if
you wish to suggest changes to the content of this unit standard.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016