Ground Cover North : Ground Cover 063 August 2006 - North
AUGUST 2006 GROUND COVER 9 Canola Ph 07 4697 3411 Fax 07 4697 3191 www.rodfrahmmachinery.com.au King Street, Clifton Qld 4361 AR Series Continuous Mixed Flow Grain Dryer Ph 07 4631 4300 Fax 07 46314301 www.agridry.com.au 14 Molloy Street, Toowoomba Qld 4350 • Grain and air mixing for even drying • Inverted ducts to mix grain • Weather proof construction • Handles all cereal grains including canola FB2000 Field Bin Dryer • Dual Purpose Dryer and Field Bin • Eliminates double handling • Impressive drying performance • Handles all cereal grains Agridry MC Mobile Continuous Flow Dryer • Completely mobile • PTO Operated • 27 t/h capacity • Continuous flow or batch mode • Diesel fired heat system with self contained fuel tanks • Air bag suspension Australian made DRYING POWER BY ALEC NICOL n A growing worldwide campaign by health authorities against ‘trans fats’ is opening the door to the next evolution of canola as a front-line product in the fight against heart disease caused by high-fat processed foods. While the dangers of saturated fats and cholesterol have been widely reported for many years, the emerging issue is trans fats, which are made when manufacturers add hydrogen to vegetable oil – a process called hydrogenation. Hydrogenation increases the shelf-life and flavour of products made with cooking oils, which in developed countries means about 40 per cent of food on most supermarket shelves. So while traditional canola oil has the nutritional advantage of containing around 10 per cent of the polyunsaturated fat linolenic acid, it too produces trans fats when hydrogenated. Until recently trans fats have escaped the attention of health authorities, but lately they have been linked directly to coronary heart disease, one of the leading causes of death in developed countries. The antidote – and the enormous market opportunity – is a cooking oil that will not break down and hydrogenise during commercial food manufacturing. This is where the new ‘high stability’ canola oil comes in. The high stability development means that good characteristics of the oil, such as high oleic acid, which does not require hydrogenation for stability, are not lost during the food manufacturing process. High oleic acid varieties have been grown in North America for several years by canola industries gearing up for an expected surge in demand for the new, healthier oils. But it is only now that some Australian growers are able to join the push. Earlier this year, Cargill Australia began commercial production of Cargill Speciality Canola. The company has contracted selected growers to sow a relatively small area so it can trial a system of segregation from sowing to harvest to crushing. The growers involved in the trial will be paid a premium of $120 a tonne in recognition of the extra effort involved in being within a closed-loop marketing system. The company is anticipating the opening of a major new global market for high oleic acid canola varieties as health authorities in Europe, Canada, the US and Japan start tackling the trans fats issue. New labelling laws in the US, Canada and some European countries now require manufacturers to reveal the amount of trans fats in their processed products. This opens the floodgates on what was already in higher demand – high oleic acid canola varieties. Of the four million hectares sown to canola in Canada last season, 200,000ha were sown to high oleic acid varieties. This is estimated to jump to a third of the total crop with the planned incorporation of herbicide tolerance into high oleic acid hybrid varieties. The Canadian canola industry has been particularly rapid in its response to this emerging health issue and the subsequent new market. Significantly, the discovery of trans fats and their role in heart disease has the potential to undermine conventional canola’s health advantages over rival oils such as palm oil. Palm oil does not have the same high level of (comparatively healthy) polyunsaturated fats, and although its saturated fatty acids are undesirable from a health perspective, they make the oil stable at high temperatures. With the big international food companies like McDonalds driving the change for new, healthier cooking oils, the Australian Oilseeds Federation (AOF) estimates that high oleic acid canola oil could replace 50,000 tonnes of tallow and palm oil with an estimated value of $80 million in the processed food industry in Australia. The AOF lists the development of high oleic acid canola varieties as a top priority. In Australia, high oleic acid varieties of sunflower are picking up some of this market. Sunflower oil use has jumped from 8000 tonnes in 2000 to 12,000t in 2005 and this year the figure is expected to reach 20,000t. High oleic acid canola oil enjoys a premium status in Japan, where it is marketed under trade names such as ‘Healthy Lite’. The Canola Council of Canada’s Dave Hickling says Japan’s preference for high oleic acid canola oil is a reflection of its health-conscious oil market, along with the fact that this oil is relatively odourless. Efforts to produce canola varieties with a high (greater than 65 per cent) level of oleic acid in Australia are not new. Neil Wratten, a canola breeder with the NSW Department of Primary Industries, says: “All of us have some high oleic acid lines in our program but breeding is a numbers game and unless we get a clear signal from the industry (in Australia), they won’t be a priority.” He says the yield penalty traditionally associated with the trait is the greatest barrier to its development, and that as yet there has been “no clear message from end-users that they’d be willing to pay the premium necessary to encourage growers to make the switch”. This contrasts starkly with the Canadian position. In 2004 Canadian growers were paid a premium of up to $75/t to encourage production. This season the premium is expected to be about $55/t. Canadian canola breeder Dr Van Ripley, a keynote speaker at the 2005 GRDC Research Updates, says the yield barrier associated with high oleic acid has been broken in Canada, with Cargill varieties under test in 2005 yielding 97 to 110 per cent of the benchmark and Dow Chemical lines yielding 91 to 100 per cent. He expects the next step in lifting yield and Canadian grower acceptance to be collaboration between Cargill and Bayer CropScience to produce hybrid high oleic acid InVigor® varieties. (InVigor® is a GM variety). Cargill is also collaborating with the Victorian Department of Primary Industries. Dr Phil Salisbury, the department’s oilseeds research leader, says that while the collaboration will provide access to Canadian germplasm, local varieties also need to be bred for blackleg resistance. Dr Salisbury says the best of the high oleic acid varieties on trial in Australia are yielding only 85 to 90 per cent of the benchmark. Robert Green, general manager for grain and oilseeds at Cargill Australia, says the company is recruiting selected growers within an area bounded by Temora in southern NSW and Yarrawonga on the NSW/Victorian border to grow a few thousand hectares of a high oleic variety this year. He expects the company will make a larger commercial release available for sowing in 2007. Mr Green says he would expect the level of the premium to be adjusted as yields are increased through new varieties. “The long-term future of speciality canola varieties depends on getting yields up and on the level of public demand,” he says. Mr Green is confident that both will eventually be achieved. Phil Salisbury estimates that the first “really competitive” high oleic acid variety is about three years away. He expects that hybrids will soon begin to play a key role in high oleic production. GRDC Research Codes DAV00060, DAN00063 More information: Dr Phil Salisbury, 03 8344 7215; Neil Wratten, 02 6938 1849 Is Australia playing canola catch-up? The development of functional foods with direct health benefits -- the latest being high oleic acid canola -- continues to open potential new grains markets The best of the high oleic acid varieties on trial in Australia are yielding only 85 to 90 per cent of the benchmark Dr Van Ripley: the yield barrier associated with high oleic acid has been broken in Canada. Dr Phil Salisbury: the first "really competitive" high oleic acid variety is about three years away.
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