NZQA registered unit standard
28605 version 1
Page 1 of 3
Title
Demonstrate knowledge of ethanol processing in a dairy processing
operation
Level
3
Credits
Purpose
5
This theory-based entry-level unit standard is for people
carrying out milk product processing in a dairy processing
operation.
People credited with this unit standard are able to demonstrate
knowledge of: the ethanol distillation process, and the ethanol
fermentation process, in a dairy processing operation.
Classification
Dairy Processing > Milk Products
Available grade
Achieved
Explanatory notes
1
Legislation relevant to this unit standard includes but is not limited to the Animal Products
Act 1999, Health and Safety in Employment Act 1992, and Animal Products (Dairy)
Regulations 2005.
2
Definition
Organisational requirements – Organisational requirements – instructions to staff on
policies and procedures which are documented in memo, electronic or manual format
and are available in the workplace. These requirements include but are not limited to
– site specific requirements, company quality management requirements, hygiene,
health and safety, regulatory and legislative requirements.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the ethanol distillation process in a dairy processing operation.
Evidence requirements
1.1
The distillation process is described in terms of the equipment used.
Range
equipment includes but is not limited to – tray and plate towers,
reboilers, condensers, column sections;
process includes but is not limited to – vapour, liquid flow rates,
column performance.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.2
The distillation process is described in terms of measures, composition and
physical properties.
Range
1.3
purification process includes but is not limited to – concentration
profiles, boiling and rectifying columns, azeotropes, extractive
distillation, dehydration processes.
The distillation process is described in terms of process and quality control
requirements.
Range
1.5
physical properties include but are not limited to – density, vapour,
pressure, volatility.
The purification process is described in terms of its relationship to the distillation
process.
Range
1.4
28605 version 1
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requirements include but are not limited to – automation and
instrumentation, tasks, bacterial contamination, molecular sieve
dehydrator technology, customer feedback.
Column performance is described in terms of the distillation process and
outcomes.
Outcome 2
Demonstrate knowledge of the ethanol fermentation process used in a dairy processing
operation.
Evidence requirements
2.1
The ethanol fermentation process is described in terms of the fundamental
processes and principles.
Range
2.2
The process of whey production is described in terms of its composition.
Range
2.3
composition includes but is not limited to – milk, casein, whey.
The ethanol fermentation process is described in terms of the microbiological
processes involved.
Range
2.4
processes include but are not limited to – aerobic and anaerobic
fermentation, feedstocks.
processes include but are not limited to – microbiology and
microbial growth parameters, yeast physiology, yeast propagation,
microbial contamination.
The process of alcohol fermentation is described in terms of its relationship to
the ethanol fermentation process.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28605 version 1
Page 3 of 3
processes include but are not limited to – batch and continuous
fermentation, yield and productivity management, yeast recycling,
carbon dioxide evolution.
Range
Replacement information
Planned review date
This unit standard replaced unit standard 19329 and unit
standard 19330.
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 June 2015
N/A
Consent and Moderation Requirements (CMR) reference
0022
This CMR 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,
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.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMRs). The
CMR 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.
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