Modern sunflower oil production: beyond smashing seeds
Modern practices make sunflower oil production highly sustainable and nutritious.
From its historical roots in North America to the fields of Russia and back again (and again), the modern sunflower has come a long way both geographically and genetically. Thanks to selective breeding, todayās sunflower bears little resemblance to its ancestors and produces a far more nutrient-dense seed.
Sunflowers are grown commercially all over the world. The vast majority of cultivation happens in Argentina, the European Union, and the Ukraine (when combined, they represent over 70% of global sunflower production).
Sunflowers: greenly grownModern machinery and improvements in agricultural practices have reduced the need for fuel and insecticide/herbicide in sunflower cultivation. Theyāre a sustainable, drought-resistant crop that thrives in conditions where other crops canāt, grow. This makes them important for both nourishment and economy in many parts of the world. |
Thereās good reason for their widespread distribution: they areĀ easy to grow and requireĀ fairly little water. Sunflowers are a highly-renewable resource that provides tremendous benefit in a variety of ways (beyond being pretty to look at). Without involving extraction of exotic ingredients that pose ecological challenges.
Culinary delights for people and pets
Everyone knows sunflower seeds are edible.Ā Theyāre calorie-dense due to their high oil content (50%!), making them an excellent source of both energy and fibre. Theyāre also rich in vitamin E, folate, and zinc.Ā Sunflower seeds are both nutritious and delicious for both humans and animals!
Of course, sunflower oil is also widely known (and recently, prized by chefs around the world) for its high smoke-point. Smoke-point is the temperature at which the oil begins to break down, changing nutritional values and flavours through burning, and creating harmful free radicals. Its light colour and low flavour make it an ideal oil for certain high-heat culinary applications, like deep-frying and stir-frying.
Sunflower oil is a healthier alternative to animal fats and many other vegetable oils
because they consist primarily of mono and polyunsaturated fats and areĀ rich in vitamin E. Ā Today, the varieties used for cooking are hybrids that were created forĀ greater shelf-stability and lowerĀ levels of saturated fats. You will also find them in commercial food products likeĀ potato chips, dressings, candies, etc.
Even sunflower petals are edible, although theyāre not widely used, and both leaf and stalk are often used as a component of livestock feed along with non-oil sunflower seeds (the little black kind).
Two oils, one flowerā¦ whatās the difference?
LinoleicĀ Sunflower oil
The āoriginalā sunflower oil, linoleic (ālow oleicā) oil isnāt as commonly used as it once was. Its high levels of linoleic fatty acid (a polyunsaturated fat) make it prone to degradation from heat, air, and light. This lack of stability means linoleic oil can go rancid quickly unless itās hydrogenated (and you donāt want that ā thatās trans fat). High-oleic sunflower oil Most sunflower oil used today, whether in food or cosmetics, is high-oleic. Its higher stability allows for longer product shelf life with lower risk of spoilage. āHigh-oleicā means āhigh in monounsaturated fatsā, and has been shown to help lower LDL cholesterol (the bad kind) without affecting HDL cholesterol (the good kind) levels. Its increased stability and a more balanced ratio of Omega 3 and Omega 6 essential fatty acids makes it an ideal ingredient for skin care products like METRIN. |
Cold-press and heat extractionā¦ does it matter?
Heat extraction is exactly what it sounds like: heat is applied to sunflower seeds so that their oil can be quickly and easily extracted by hydraulic press.Ā Fun fact: historically, Native Americans used a form of heat extraction to harvest sunflower oil ā they simply boiled the flower heads and skimmed the oil from the surface.
Heat extractionās certainly efficient, but the heating process often uses harmful solvents. The solvents mostly evaporate with any remnants chemically removed from the finished oil, of course. But the process damages both oilās flavours and nutritional properties.Ā Most oils extracted by this method arenāt as pure as cold-pressed oils and must be further refined (chemically) before use.
Cold pressing is done by low-temperature expeller ā no heat or solvents required.
The result is more flavourful, nutrient-rich oils with a higher degree of purity.
METRIN only uses cold-pressed, high oleic, certified organic sunflower oil in our skin care products to preserve its high nutrient content.
How It’s Made (Basically)
Cold Pressing (good)
Organic: buzzword or better?
āOrganicā can go both ways, but in sunflower oilās case, itās definitely ābetterā.Ā Itās technically a certification issued by various regulatory agencies. You probably already know, but it means: no artificial/non-natural chemicals get used when producing the product. Orā¦ at least very few. For example, sunflower oil thatās certified āorganicā by the USDA, one of the best agencies involved in this type of thing, must contain at least 95% organic ingredients.
And yes ā METRIN exclusively uses cold-pressed, USDA-certified organic sunflower oil in our skin care products. Only the best! Why? Because several studies have shown that oil extracted from organically-grown sunflowers contain higher levels of antioxidants. Since oxygen literally causes aging, thatās a good thing.
The verdict: organic really is better.
The sunflower oil production elevator pitch:
- Modern practices make sunflower oil production highly sustainable, even in harsher climates
- Sunflower oil has a huge variety of uses: culinary, cosmetics, and much more
- High-oleic sunflower oil is more stable, making it superior for skin care (plus itās trans-fat-free)
- Cold-pressed means more nutritious, flavourful, and safer compared to heat-extracted SF oil
- Organic sunflower oil really makes a difference (and thatās why we use it)
And there you have it: modern sunflower oil in a nut seed shellā¦
following a fascinating 5,000-year history of cultivation.
Next week, weāll look directly at the benefits of sunflower oil in skin care ā so many they require their very own post. See you then!