Do ground seeds contain oil?
I am referring to things like cumin seeds or others which are meant to contain oil. When they are ground does it loose the oil? Or does the oil exist but it deteriorates due to oxidation?
I also understand raw tumeric contains oil. Does that also go once it's ground or does that oxidise too?
I am asking about if you ground at home and store bought powders.
Best Answer
So, let's first get clear about what "oil" means. In common language there are two "oils" contained in food: "oil" and "essential oils".
"Oil" means the common, cooking liquid fat, that has a more neutral taste and is used for various applications (deep-frying, stir frying...). Main composition of this is unsaturated fats, and the oil comes from the so-called oleiferous plants, which are plants that use oil as nutrition storage for their sprouts - e.g. peanuts, sunflower, canola, olive, flax seed, soy...
"Essential oils" have a very different composition and application - they contain a very diverse mix of components that give spices, herbs, flowers and other seasonings their caracteristic aroma (or "essence"). These components are usually volatile and present in very small quantities in the natural product, and of course, since they're present in very small quantities in the seed / herb, you need a lot of it to make a portion of essential oil, therefore, those are really expensive. One of the methods for extracting this oil is to steep the aromatic (spice / herb / flower) in common oil or fat - then you get aromatized oil in a quantity you can handle with more ease.
When you hear that cumin seeds and turmeric (which is a root, not a seed) contain oil, we're talking about the essential oil. The oil is there, in a very small quantity, that's the reason why you cannot see it with the naked eye, unless you grind large quantities of the seed very finely to directly obtain the oil. You're also right on oxidation and evaporation - this is why pre-ground spice loses its punch very quicker than the whole thing.
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Does ground flaxseed have oil?
Flaxseed, also referred to as linseed, comes from the flax plant, which is an herb. In ancient Egypt, the Egyptians used flaxseed as both a food source and a medicine because of its health properties. Flaxseed, which is approximately 40 percent oil by weight, is available whole, ground or in oil form.Is ground flaxseed as good as flaxseed oil?
Ground flaxseed offers a nutritional advantage over flaxseed oil because it's lower in calories but contains more fiber. Each 2-tablespoon serving of ground flaxseed contains 75 calories, and an equivalent serving of flaxseed oil offers 240 calories.Are ground seeds good for you?
Flaxseed's health benefits come from the fact that it's high in fiber and omega-3 fatty acids, as well as phytochemicals called lignans. One tablespoon (7 grams) of ground flaxseed contains 2 grams of polyunsaturated fatty acids (includes the omega 3s), 2 grams of dietary fiber and 37 calories.Which is better flax seeds or oil?
Flax seeds are a whole food while flaxseed oil is not. Therefore, flax seeds are of higher quality and have many more health benefits due to the larger variety of vitamins and natural nutrients than flaxseed oil.Most Dangerous Cooking (Avoid these Completely) 2022
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Gelgas Airlangga, Tree of Life Seeds, Gary Barnes, RODNAE Productions