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Onions, in particular, produce a sulfur product that acts as a lacrimator, or a substance that causes tearing: “This volatile chemical escapes from the damaged onion into the air, and lands in ...
A sharp knife allows you to slice through an onion “cleanly and efficiently,” according to Henry Liu, founder and CEO of Cangshan Cutlery. Liu explains that when you use a dull knife, you end ...
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The product obtained in this fashion is known as volatile oil of mustard. It is used principally as a flavoring agent in foods. Synthetic allyl isothiocyanate is used as an insecticide , as an anti-mold agent [ 9 ] bacteriocide , [ 10 ] and nematicide , and is used in certain cases for crop protection. [ 4 ]
Oxidative stability is a measure of oil or fat resistance to oxidation. Because the process takes place through a chain reaction, the oxidation reaction has a period when it is relatively slow, before it suddenly speeds up. The time for this to happen is called the "induction time", and it is repeatable under identical conditions (temperature ...
Edible oil refining is a set of processes or treatments necessary to turn vegetable raw oil into edible oil.. Raw vegetable oil, obtained from seeds by pressing, solvent extraction, contains free fatty acids and other components such as phospholipids, waxes, peroxides, aldehydes, and ketones, which contribute to undesirable flavor, odor, and appearance; [1] for these reasons, all the oil has ...
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Sweating is often a preliminary step to further cooking in liquid; [1] onions, in particular, are often sweated before including in a stew. [ a ] This differs from sautéing in that sweating is done over a much lower heat, [ 2 ] sometimes with salt added to help draw moisture away, and making sure that little or no browning takes place.