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Soybean Oil – one of the most concentrated sources of Omega 6

A soybean seed contains about 19 % Oil. To extract soybean oil from seed the soybeans are cracked, adjusted for moisture content, rolled into flakes and then solvent-extracted. Soybean oil ends up in a wide variety of processed foods and most but not all oils in shops labeled ‘Vegetable Oil’ are Soybean oil. Soybean oil is among the healthiest of all edible oils and has a very favorable fatty acid profile. It is low in saturated fat, high in polyunsaturated fat and contains monounsaturated fat. This oil is highly digestible and contains no cholesterol.

Long recognized as nutritionally balanced, versatile and affordable, soybean oil is one of the few non-fish sources of omega-3 polyunsaturated fatty acids, which have various physiological benefits including cardioprotective effects. Omega-6 fatty acids, also found naturally in soybean oil, may help decrease risk of heart disease. Containing about 50 percent omega-6 fatty acids, soybean oil is one of the most concentrated sources of this polyunsaturated fat. Soybean oil is the primary commercial source of alpha-tocopherol, also known as vitamin E. Vitamin E is the body’s primary lipid-soluble antioxidant defense against free radical induced cell damage, which has been linked to a number of cancers, heart disease, cataracts, premature aging and arthritis.

The neutral flavor and well-balanced fatty acid profile of soybean oil make it a desirable ingredient for a variety of applications from baked goods to salad dressings. Soybean oil can be used in breads, crackers, barbecue sauce and non-dairy creamers. Soybean oil is used in prepared foods such as whipped toppings, sandwich spreads, non-dairy coffee creamers, potato chips and battered and breaded snacks and vegetables. Compared to other vegetable oils, soybean oil has good emulsifying ability. This makes it an appropriate ingredient in mayonnaise, and the first choice of the general food industry. Almost all margarine and shortenings contain soybean oil. Soybean oil can turn two ounces of olive oil into a whole pint of flavored oil for dressings. The distinctive olive oil aroma will be evident, even though the bulk of the dressing’s oil component comes from inexpensive soybean oil.

Soybean oil has a high smoke point of 440°F which allows it to be used as frying oil. Soybean oil is often hydrogenated to increase its shelf life or to produce a more solid product. In this process, unhealthy trans fats are produced which raise blood cholesterol levels and increase the risk of heart disease. Food manufacturers are now trying to remove trans fats from their product. For this purpose, scientists are breeding new varieties of soybeans containing oil that does not need to be hydrogenated.

Soybean oil contains natural antioxidants which remain in the oil even after extraction. These antioxidants help to prevent the oxidative rancidity. Soybean oil has normally a shelf life of 1 year but its better to store the soybean oil only a few months at room temperature. Soybean oil should be stored in a dry and dark place. It should be stored away from heat and if you want to keep soybean oil for longer periods it should be kept refrigerated.

References:

Soy Connection
Wikipedia
Soya

What you need to know about the greatest oils around..

Healthy oils are essential for the health and wellbeing of our bodies. Here are a variety of nutritious oils and their possible uses:

Avocado oil

Cold pressed from the flesh of the avocado fruit, this oil is rich in Vitamins, A, B & D and lecithin. Possessing a mild nutty flavour. Avocado oil is a tasty and healthy choice when used as a base for salad dressings and oil marinades. When cooking, avocado oil must never be heated as bitter flavours will develop. Avocado Oil readily penetrates the skin and its extremely high vitamin and mineral content nourish dry climate-abused or aging skin. To nourish the skin, massage a portion of avocado oil into the skin using a warm face cloth to remove excess oil.

Safflower oil

Low in saturated fats and has a neutral flavor that is perfect for salad dressings, dips, mayonnaise and low temperature baking. Safflower oil, with a fatty acid profile of 79 percent polyunsaturates, 13 percent monounsaturates and just 8 percent saturated fats, is the most highly polyunsaturated vegetable oil available.

Sesame oil

Suitable for salads, sautés and frying. Sesame oil can make a wonderful moisturiser for the skin. This light yellow oil is distinctively sweet and nutty in aroma. Excellent stability and resistance to oxidation due to natural sesamol content.

Sunflower oil

Sunflower oil is light in taste and appearance and supplies more Vitamin E than any other vegetable oil. It is a combination of monounsaturated and polyunsaturated fats with low saturated fat levels. The versatility of this healthy oil is recognized by cooks internationally. Sunflower oil is valued for its light taste, frying performance and health benefits. Great for cooking, salads and dressings.

Soybean oil

Soybean oil is cheap, healthful and has a high smoke point. Soybean oil’s clean, natural taste and nearly imperceptible odor support and enhance the natural flavors of prepared foods. This versatile oil is great for salad dressings, sandwich spreads, margarine, bread, mayonnaise, non-dairy coffee creamers and snack foods. The high smoke point of soybean oil allows it to be used as frying oil.

Pumpkin seed oil

Pumpkin seed oil is a delicious tasting nutritional oil, that keeps better than flax seed oil and very rarely goes rancid. Pumpkin seed oil offers the good fats  for smooth skin, increased energy, maintenance and improvement of sexual health and optimum brain function. Pumpkin seed oil is known to prevent and alleviate bladder and prostate problems. Pumpkin seed oil is typically used as a salad dressing combined with apple cider vinegar and salt. Additionally, it can be used in cooking and baking as an ingredient in sauces and cakes.

Grapeseed oil

Grapeseed oil is light in color and flavor, with a hint of nuttiness. It has a very high smoking point, so many people use grapeseed oil to fry foods. Grapeseed oil can also be included in dressings and sauces. Culinary grapeseed oil can also be flavored with the addition of things like peppers, truffle shavings, and herbs. Grapeseed Oil is full of antioxidants and moisturising properties helpful in restoring damaged done by the elements. It has mild astringent qualities which may help to tighten and tone the skin. Some cosmetic grapeseed oils are stabilized with chemicals which could be harmful to consume. Like other oils, grapeseed oil should be stored in a cool dark place until it is used.

Flax Seed oil

Flaxseed oil can be used in salad dressings, over toast as a substitute for butter or even added to protein shakes. Some people enjoy its buttery, nutty taste, but others find it unpleasant. Flaxseed is used for a variety of medicinal purposed, most commonly constipation and other conditions requiring high fiber. It is also said to be good for arthritis, heart disease, cancer, depression, Crohn’s disease, and much more.

Wheatgerm oil

Wheatgerm oil is a very sensitive oil, therefore must be used cautiously. It tends to degrade in quality, when exposed to high temperatures. It is usually dark in color and also has a heavy smell. Wheatgerm oil is a good source of fatty acids that are very vital for the healthy growth of the body. Wheatgerm oil supports the skins natural process of regeneration. Good for stretch marks, scar tissue, and for dry rough skin. Wheat Germ Oil can be taken alone, drizzled on top of salads, vegetables, pasta, pesto, or other meals. Wheat Germ Oil should not be heated.

How to use oils to improve your health

Oil has long been thought as an evil part of the diet – something to avoid at all costs, but did you know that there are some healthy oils that are good to include in your diet?  These are polyunsaturated oils that are high in omega 3, 6, and 9 fatty acids and have a range of health benefits.

Some of these oils include:

  • avocado oil
  • safflower oil
  • sesame oil
  • sunflower oil
  • soybean oil
  • pumpkin seed oil
  • grapeseed oil
  • flaxseed oil
  • wheatgerm oil
  • fish oil
  • olive oil
  • canola oil
  • corn oil
  • evening primrose oil

How to Use Healthy Oils

Even though these oils are significantly better for your health than saturated fats and other hydrogenated oils, remember that they are still a liquid fat.  Use the oils sparingly so that you do not overindulge and possibly suffer from weight gain.

Oils need to be stored in dark bottles as clear glass or plastic bottles allow light to penetrate into the oil and oxidise the fatty acids.  Contact with air will also affect the oil so be sure to keep the lid on tightly.  Be aware that the healthier the oil is, the more quickly it will spoil.  Many healthy oils will need to be stored in the refrigerator.  Olive oil is an exception however as it is high in oleic acid and contains antioxidants that slow spoiling. 

The more omega 3 fatty acids that are in the oil, the less suitable it is for cooking.  High temperatures can damage many oils as the heat not only damages the fatty acids, it can also make them harmful.  Where possible, use the healthy oils at room temperature, such as in salad dressings.  Olive oils are the best for cooking.

How Often Should I Eat These Oils?

Essential fatty acids are important for the diet and should be eaten on a regular basis.  You should consume a source of omega 3 or 6 essential fatty acids three to five times a week.  Where possible, consume them in a food form such as fish or flaxseed oil, rather than in a supplement form, as fresh is always better.

 

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