Effect of cane sugar juice composition on scaling rate and scale composition in sugar mills. The Australia sugar industry produces 1100 GWh of renewable electricity annually, abating ~1.1 M tonnes of CO2-equivalent of greenhouse gases. This can be increased if the juice evaporation performance, which largely determines the energy efficiency of the sugar factory, can be improved through reduced fouling of evaporators. This project will investigate the effect of juice composition on fouling of sug ....Effect of cane sugar juice composition on scaling rate and scale composition in sugar mills. The Australia sugar industry produces 1100 GWh of renewable electricity annually, abating ~1.1 M tonnes of CO2-equivalent of greenhouse gases. This can be increased if the juice evaporation performance, which largely determines the energy efficiency of the sugar factory, can be improved through reduced fouling of evaporators. This project will investigate the effect of juice composition on fouling of sugar factory evaporators so that a model to predict scale type and scale propensity can be developed. This will enable the development of better scale control strategies, resulting in reduced energy usage and reduced usage of the hazardous and polluting chemicals required to remove scale.Read moreRead less
Understanding an exotic disease: Initiation of sex and infection by the sugarcane smut Ustilago scitaminea. Australian sugar exports generate almost $2 billion in annual sales, making the sugar industry a critical facet of the Australian economy. In 2006, Australia's primary sugar producing region came under threat when an outbreak of sugarcane smut caused by the fungus Ustilago scitaminea first appeared in Queensland. Management of this potentially devastating disease has focused on breeding pr ....Understanding an exotic disease: Initiation of sex and infection by the sugarcane smut Ustilago scitaminea. Australian sugar exports generate almost $2 billion in annual sales, making the sugar industry a critical facet of the Australian economy. In 2006, Australia's primary sugar producing region came under threat when an outbreak of sugarcane smut caused by the fungus Ustilago scitaminea first appeared in Queensland. Management of this potentially devastating disease has focused on breeding programmes aimed at developing resistant sugarcane cultivars, a complex process hampered by a lack of information about the mechanisms of smut resistance. Our research will provide key insight into the mechanisms by which U. scitaminea infects sugarcane, directing future breeding efforts and protecting this valuable industry against further outbreaks.Read moreRead less
Modification of lignin biosynthesis in sugarcane for the improved efficiency of pre-treatment in ethanol production. Sugarcane is one of Australia's most important rural industries. However, as a single product industry, declining sugar prices threaten the industry's long term economic sustainability unless alternative markets for sugarcane are created. Utilising the sugarcane waste for cellulosic ethanol would provide a new revenue stream, injecting life into the Australian sugarcane industry. ....Modification of lignin biosynthesis in sugarcane for the improved efficiency of pre-treatment in ethanol production. Sugarcane is one of Australia's most important rural industries. However, as a single product industry, declining sugar prices threaten the industry's long term economic sustainability unless alternative markets for sugarcane are created. Utilising the sugarcane waste for cellulosic ethanol would provide a new revenue stream, injecting life into the Australian sugarcane industry. In addition, cellulosic ethanol from sugarcane has the potential to substantially decrease the cost of biofuel production and significantly reduce greenhouse gas emissions. The research proposed here will advance our ability to improve sugarcane through biotechnology.Read moreRead less
Metabolic engineering of sugarcane: production of a biodegradable bioplastic as a test-case. The aim of this project is to produce a commercially valuable bioplastic called PHB in transgenic sugarcane. This bioplastic has similar properties to petrochemically produced polypropylene, but is fully biodegradable. PHB has been produced in the model plant Arabidopsis thaliana at commercially viable levels. The expected outcome of high-level production of PHB in sugarcane would have significant ben ....Metabolic engineering of sugarcane: production of a biodegradable bioplastic as a test-case. The aim of this project is to produce a commercially valuable bioplastic called PHB in transgenic sugarcane. This bioplastic has similar properties to petrochemically produced polypropylene, but is fully biodegradable. PHB has been produced in the model plant Arabidopsis thaliana at commercially viable levels. The expected outcome of high-level production of PHB in sugarcane would have significant benefits to the Australian sugar industry, the rural economy, and the Australian environment.Read moreRead less
Sustainable dollar notes and other polypropylenes from bioderived feedstocks. Fossil fuels provide us with the essential chemicals for our life style. The chemical industry recognizes limited supply and a need to reduce carbon emissions. Microbes are able to supply green chemicals (e.g. bio-ethanol), but efficiencies are often low. This project will develop microbes for the fermentative production of plastics from cane sugar.
Developing an integrated device for on-farm detection of sugarcane diseases. Pathogenic organisms cause yield losses of more than $150M pa to the Australian sugarcane industry and many millions more worldwide. Partnering with Sugar Research Australia, this project aims to develop a novel on-farm diagnostic device, comprising new nanotechnology and magnetism-induced microfluidics with naked eye observation and electrochemical detection. This device is expected to enable improved disease managemen ....Developing an integrated device for on-farm detection of sugarcane diseases. Pathogenic organisms cause yield losses of more than $150M pa to the Australian sugarcane industry and many millions more worldwide. Partnering with Sugar Research Australia, this project aims to develop a novel on-farm diagnostic device, comprising new nanotechnology and magnetism-induced microfluidics with naked eye observation and electrochemical detection. This device is expected to enable improved disease management strategies through the prediction of potential risks and rapid and effective actions to mitigate impending yield loss. In turn productivity and sustainability of Australia’s sugar industry will be enhanced. The new platform device has great potential for improved disease management in other crops in Australia and globally.Read moreRead less
Understanding and avoiding transgene silencing in sugarcane. Sugarcane is one of the world's major crops for food (sugar) and fuel (ethanol, electricity co-generation). It is one of the most appealing target crops for metabolic engineering aimed at renewable biomaterials and biofuels. Australia has invested strongly to achieve scientific leadership in gene technologies in our major export crops including sugarcane. Field tests show that development of methods to avoid unstable expression or 'sil ....Understanding and avoiding transgene silencing in sugarcane. Sugarcane is one of the world's major crops for food (sugar) and fuel (ethanol, electricity co-generation). It is one of the most appealing target crops for metabolic engineering aimed at renewable biomaterials and biofuels. Australia has invested strongly to achieve scientific leadership in gene technologies in our major export crops including sugarcane. Field tests show that development of methods to avoid unstable expression or 'silencing' of introduced genes is now a critical requirement for practical application. The current project emerges from industry recognition of the need to understand and avoid transgene silencing. The methods developed using sugarcane are expected to have rapid applicability for wider benefits in agriculture.Read moreRead less
Optimising transgene expression and stability for enhanced sugar yield and high-value sugar production in sugarcane. 'SugarBooster' technology has the potential to underpin a value-added sugarcane industry. Higher sucrose yield is a key to sustainable export profitability, and it makes the development of renewable biofuels from sugarcane more feasible. Isomaltulose has established health benefits for consumers and it is also attractive as a renewable starting material for industry. But it must c ....Optimising transgene expression and stability for enhanced sugar yield and high-value sugar production in sugarcane. 'SugarBooster' technology has the potential to underpin a value-added sugarcane industry. Higher sucrose yield is a key to sustainable export profitability, and it makes the development of renewable biofuels from sugarcane more feasible. Isomaltulose has established health benefits for consumers and it is also attractive as a renewable starting material for industry. But it must currently be produced by expensive fermentation. Efficient production in plants will open an increasing world market. This collaborative project is vital to bring these breakthrough technologies to reliable commercial implementation, in time to capture the economic benefits of the protected IP for Australia.Read moreRead less
Manipulation of carbon partitioning to enhance the value of sugarcane. Manipulation of carbon partitioning to enhance the value of sugarcane. This project aims to develop enhanced varieties of sugarcane, a highly efficient crop for capturing carbon in plant biomass. This project will use genomic and metabolomic tools to investigate the biochemical and molecular genetic control of carbon partitioning into the major components of sugarcane biomass; identify key genetic controls of sucrose, cellulo ....Manipulation of carbon partitioning to enhance the value of sugarcane. Manipulation of carbon partitioning to enhance the value of sugarcane. This project aims to develop enhanced varieties of sugarcane, a highly efficient crop for capturing carbon in plant biomass. This project will use genomic and metabolomic tools to investigate the biochemical and molecular genetic control of carbon partitioning into the major components of sugarcane biomass; identify key genetic controls of sucrose, cellulose, hemicellulose and lignin biosynthesis; and establish strategies for genetic selection of sugarcane genotypes with desirable biomass components. Anticipated outcomes are an optimised industrial sugarcane crops with higher sugar content and other biomass components designed for high value end uses such as bio-energy or bio-material production.Read moreRead less
Targeting and stabilizing proteins in sugar storage vacuoles for metabolic engineering in sugarcane. We have isolated a novel gene for an enzyme that efficiently converts sucrose into a product of much higher value. We have shown that the enzyme functions in sugarcane, a first example of the potential for new biosynthetic capacities in this highly productive crop. Because 90% of stored sucrose is in specialized vacuoles, the enzyme needs to be directed into these vacuoles, and made stable and ac ....Targeting and stabilizing proteins in sugar storage vacuoles for metabolic engineering in sugarcane. We have isolated a novel gene for an enzyme that efficiently converts sucrose into a product of much higher value. We have shown that the enzyme functions in sugarcane, a first example of the potential for new biosynthetic capacities in this highly productive crop. Because 90% of stored sucrose is in specialized vacuoles, the enzyme needs to be directed into these vacuoles, and made stable and active there. This is feasible by building on recent discoveries about vacuolar targeting in plants. The outputs include scientific understanding to underpin metabolic engineering in plants, and a profitable high-technology export industry for Australia.Read moreRead less