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December 6, 2023

ARC backs hemp food improvements at SCU

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Bright future for hemp seeds? Unsplash.

A new Southern Cross University research project looking at improving the nutritional quality of hempseed has gained the support of the Australian Research Council.

SCU say they are supporting Australia’s emerging hempseed food industry to develop hemp varieties of high nutritional value best-suited to local conditions. Amid global demand for higher quality natural foods, this new research project bolsters SCU’s three decades of research with hemp and cannabis.

‘New crop on the block: Genetic control of hempseed nutritional quality’ has been awarded $530,543 over three years through an ARC Linkage Project grant. Associate Professor Tobias Kretzschmar, a world expert in plant breeding and genetics, will lead the project.

His team will work in collaboration with industry partner Kavasil Pty Ltd, a regional hemp research and development and consulting company based at Nimbin in the NSW Northern Rivers.

More knowledge needed

Hempseed is rich in polyunsaturated oils and high-quality protein, but SCU says very little is known about the genetic control of oil and protein contents and composition, crucial characteristics for the optimization of hempseed productivity and quality for the Australian industry.

Associate Professor Dr Tobias Kretzschmar. SCU.

‘The project will involve characterising hemp germplasm for seed quality traits, including seed size and nutritional composition,’ said Associate Professor Kretzschmar.

‘Importantly, we will be linking genotypes (genetic makeup) to phenotypes (visual or chemical characteristics/traits) through quantitative genetic approaches.

‘This will help improve hempseed varieties for Australian requirements into the future.’

A unique genetic resource of 120 diverse hemp accessions (cultivars), consisting of globally sourced germplasm and accessions provided by Kavasil, will be used to define the genetics underpinning nutritional variation and associated genotype-by-environment interactions.

SCU says this fundamental knowledge will lay the foundation for targeted breeding and best management practice for the benefit of farmers, the hemp industry and health-conscious consumers. The project will be conducted in the Southern Cross Plant Science laboratories and field sites at the University’s Lismore campus.

Ideal crop

Despite years of over-regulation and stigmatisation, Associate Professor Kretzschmar argues that hemp is an ideal crop for Australia. ‘Hemp has massive potential as a food and medicinal crop,’ he said.

‘The seeds are a rich source of essential Omega-6 and Omega-3 fatty acids with similar health benefits as fish oil, except they are plant-based vegan and come without the odour issues and ethical concerns associated with animal sourced products.

Hemp seeds. Pixabay.

‘Hempseeds also contain high amounts of essential amino acids, important for a balanced diet,’ he said.

‘Like soy, hemp can be used as protein crop. Like canola, it can be used as an oil crop. In addition, its flowers are rich in nutraceutical and medical compounds.

‘Hemp’s versatility means it is the swiss army knife of crops,’ said Associate Professor Kretzschmar.

Industry partnership

Kavasil Pty Ltd focuses on increasing the value of hemp products by marketing high-value hempseed as a functional food; advising and changing policy in respect to hemp foods for human consumption (through Food Standards of Australia and New Zealand (FSANZ)); and supporting R&D into hemp cultivation, hemp variety improvement, hemp nutritional value and hempseed processing.

Southern Cross University now houses, maintains and works with the Kavasil hemp germplasm collection which is critical to this project.

Andrew Kavasilas is the founder and chief executive officer of Kavasil Pty Ltd. During his 20 years-plus in the hemp industry Mr Kavasilas has collaborated with Southern Cross University on several hemp and cannabis research projects and has been pivotal in shaping the regulatory landscape and driving the application approval and subsequent introduction of hemp seed foods for human consumption in Australia.

Mr Kavasilas said, ‘One of my key objectives is to develop markets and supply chains for “functional hemp foods” with nutritional and health benefits. This can be achieved through increased domestic production of “clean and green” premium products.

‘One of the keys to sourcing, processing and marketing Australian-grown hemp products is the development of locally adapted hemp cultivars that yield large seeds and high concentrations of “functional” components, for example fatty acids, proteins and other complex compounds,’ he said.

Delicious hemp seeds. Pixabay.

Mr Kavasilas says the ARC Linkage project represents an important moment for the broader Australian hemp and cannabis industries.

‘Resolving genetic contribution as well as genotype x environment interactions for these key functional components in the cannabis plant will be critical for our future breeding programs and expansion plans,’ he said.

‘This clearly aligns with our strategic objective for developing appropriate genetics, sourcing, processing and marketing increasing volumes of high-value Australian-grown hemp products.’

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