Pag/high Oleic Canola Oil Blend
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چکیده
T R I B O L O G Y & L U B R I C A T I O N T E C H N O L O G Y W W W . S T L E . O R G nterest in the use of biodegradable lubricants continues as more emphasis is placed on using fluids that are derived from sustainable raw materials. One area of concern with current biodegradable lubricants is inferior performance compared to synthetic lubricants, particularly from the standpoint of oxidation stability and low-temperature characteristics. Readily available feedstocks such as soybean oil often do not provide sufficient oxidation stability because of very high levels of polyunsaturated fatty acid chains such as linoleic in the triglyceride structure. These fatty acids are particularly vulnerable to oxidation and, as a consequence, the generation of insoluble varnishes and residues can occur. Regulatory drivers both in the U.S. and in the EU are attempting to promote the use of biodegradable lubricants in the marketplace. The Farm Bill of 2002 enabled the U.S. Department of Agriculture to designate minimum biobased contents for lubricants and requires federal agencies to purchase these products if they display comparable cost performance to traditional petroleum-based fluids. As an example, mobile and stationary hydraulic fluids qualify if they both have minimum biobased contents of 44%. In May 2005 the European Union published the criteria for an eco-label for lubricants. This regulation also designated minimum biobased contents for specific lubricant fluids. For hydraulic fluids, the minimum carbon content derived from renewable sources needs to be 50%. Development of new technology to improve biodegradable lubricant performance is needed to expand the presence of these fluids in the marketplace, particularly in environmentally sensitive applications such as hydraulic fluids. Such a technology has now become available.
منابع مشابه
Interactions between Obesity Status and Dietary Intake of Monounsaturated and Polyunsaturated Oils on Human Gut Microbiome Profiles in the Canola Oil Multicenter Intervention Trial (COMIT)
Long-term dietary fatty acid intake is believed to induce changes in the human gut microbiome which might be associated with human health or obesity status; however, considerable debate remains regarding the most favorable ratios of fatty acids to optimize these processes. The objective of this sub-study of a double-blinded randomized crossover clinical study, the canola oil multi-center interv...
متن کاملMain Properties of Canola Oil Components: A Descriptive Review of Current Knowledge
Together with olive and soybean, canola is one of the most important and diffuse oilseed crops. Due to high oleic acid and antioxidant contents, canola oil shows positive effects on cholesterol, glycemic control, blood pressure and cancer. For these reasons, canola oil can be considered an important food-resource: future scientific research is expected to provide further evidence on adoption of...
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BACKGROUND The Canola Oil Multicenter Intervention Trial (COMIT) was a randomized controlled crossover study designed to evaluate the effects of five diets that provided different oils and/or oil blends on cardiovascular disease (CVD) risk factors in individuals with abdominal obesity. The present objective is to report preliminary findings on plasma fatty acid profiles in volunteers with abdom...
متن کاملPotential for High Oleic/ Low Linolenic Canola for Australia
The major oils currently used for deep-frying in Australia are palmolein and tallow. Ninety thousand tonnes of palmolein are imported into Australia annually for this purpose while an exportable surplus of thirty thousand tonnes of crude canola oil exists. The current composition of canola oil is not suitable for deep-frying, as it is unstable due to a high content of unsaturated fats. Palmolei...
متن کاملPerformance of Regular and Modified Canola and Soybean Oils in Rotational Frying
Canola and soybean oils both regular and with modified fatty acid compositions by genetic modifications and hydrogenation were compared for frying performance. The frying was conducted at 185 ± 5 °C for up to 12 days where French fries, battered chicken and fish sticks were fried in succession. Modified canola oils, with reduced levels of linolenic acid, accumulated significantly lower amounts ...
متن کاملAnalysis of Oleic Acid-rich Edible Oils by Mass Spectrometry Analysis of Oleic Acid-rich Edible Oils by Mass Spectrometry
Introduction. Edible oils containing > 60 % monoenoic acids (i. e. oleic acid), in particular olive oil and Canola oil have been shown to exhibit beneficial effects on lipid metabolism in human (LDL-cholesterol blood levels, triacylglycerol blood levels) within the last few years [1]. These findings are in contrast to earlier recommandations by nutrition experts who strongly favored high-linole...
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