Vegetable oil has a certain softening of blood vessels, the effect of delayed aging, and because the raw material for oil extraction is the seed of plants, usually contains a certain amount of seed phospholipids, on blood vessels, nerves, the development of the human brain is very important.
Vegetable oil taboos
1, oil has a certain shelf life, placed too long oil do not eat.
2, because there is some "green odor", so it is not suitable for direct use in cold dishes.
3, high temperature heating crumbs of oil should avoid repeated use.
4, by dry canola oil lack of oleic acid and other essential fatty acids, and the composition is not balanced, the nutritional value is slightly lower than the general vegetable oils, so in the conditions to consume less canola oil is appropriate.
5, canola oil is a particularly high erucic acid content of oil, whether it will cause myocardial fat deposition and heart damage is still controversial, with coronary heart disease, hypertension patients should pay attention to eat less.
6, canola oil contains erucic acid, animal experiments have proved that a large intake of high erucic acid-containing canola oil, can cause myocardial fibrosis caused by cardiomyopathy; caused by the animal weight gain retardation, stunted; fertility decline, the test male rats feed erucic acid content of 10%, that is, the emergence of testes smaller, no mature sperm and other phenomena; caused by the decline in platelets.
The way to buy canola oil tips
1, watch the color.
Pure canola oil is dark yellow or brown, while poor quality canola oil is brownish red, tan or brown.
2, smell.
Good canola oil has the fragrance of rapeseed, but poor quality canola oil has a very faint taste, and there will even be moldy, burnt, hay and other odors.
The picture was provided by registered user "Listening to the language", copyright statement feedback
3, see the transparency.
Quality canola oil is clear and transparent, poor quality canola oil will have suspended matter, and even cloudy liquid.
4, taste.
Put a little canola oil on your tongue, and if you don't have a bad taste in addition to a little pungent flavor, it means it's pure canola oil. But if the taste is bland, or even sour, burnt or bitter, then it is not good canola oil.
Reference: Baidu Encyclopedia-Rapeseed Oil