each of 25ml of petroleum ether and 50ml petroleum and diethyl
ether mix (The petroleum and diethyl ether mix extract is conducted
twice). After each solvent addition, and subsequent shaking, the
organic layer is decanted from the Mojonnier tube into a pre-
weighed glass dish. Once all extractions are complete the organic
extract in the glass dish is evaporated.
The dish is then dried in an oven at 102
Calculation: % Fat = Weight of dish – Weight of dish X 100
Weight of sample
Comments, limitations or
If hydrolysis is incomplete then a full recovery may not be obtained.
Foods high in sugar should be pretreated to remove sugar prior to
Convection oven calibrated at 102
Analytical balance capable of weighing to 0.0001 gram
10 gram of sample required.
QA Protocols per batch
1 Duplicate per batch, maximum batch size is 10 samples.
Mass of Sample required
10g per sample, however more samples would be required for QA.
02 6271 4100
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1300 634 313
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Nutritional Data for
Australian Native Foods
By Chris Read
Pub. No. 12/099
This report details the analysis of a key group of 14 native
food species for their nutritional properties, in particular
those which are reported in the nutritional panels found on
most manufactured products.
Through liaison with Food Standards Australia and New
Zealand (FSANZ), this data has been incorporated into the
database employed by the online calculator which is used by
manufacturers to prepare these panels for their labelling.
RIRDC is a partnership between government and industry
to invest in R&D for more productive and sustainable rural
industries. We invest in new and emerging rural industries, a
suite of established rural industries and national rural issues.
Most of the information we produce can be downloaded for
free or purchased from our website .
RIRDC books can also be purchased by phoning
1300 634 313 for a local call fee.
About the Author
What the report is about
Who is the report targeted at?
Where are the relevant industries located in Australia?
Implications for relevant stakeholders
The native food industry can take confidence that the native produce they grow and supply can be incorporated into recipes for which nutritional panel can be generated to satisfy the Food Standards Authority
Policy makers can recognise that Australian native foods, products and cuisine are part of the normal dietary offering, and need support at a policy level in order that they may be traded both within Australia, and in export markets.