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Anonymous users2024-02-11The cottonseed oil is blue when poured out, indicating that something else is mixed in it.
Yellow to brown in color of good quality cottonseed oil; The appearance is clear and transparent; Inherently spicy; Moisture content: Below; No sediment or trace sediment, impurity content, heated to 280 oil color unchanged, and no precipitation precipitation.
The color of secondary cottonseed oil is brownish-red, tan; The appearance is slightly cloudy, with a small amount of suspended solids; The smell is bland and slightly peculiar; Water content: above; There are precipitates and suspended solids, and their impurity content"; , heat to 280 The oil color becomes darker and there is precipitation.
the color of inferior cottonseed oil is brown; Extremely cloudy appearance; musty, burnt, hay, hala; There are a large number of suspended solids and sediments, and the oil color turns black when heated to 280, and a large amount of precipitation is precipitated.
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Anonymous users2024-02-10The amount of alkali added in the process of cottonseed oil alkali refining has a great influence on the color of the refined oil, and the main reason for the dark color of wool cotton oil is the free gossypol and its derivatives, phospholipids and sterols containing about 1 oil in the oil. During refining, gossypol, resin, mucus, etc. can be basically removed, and the content is only or less. Gossypol is not a pigment, a harmful substance, of course, it is free, combined with gossypol is harmless to the body The color of cottonseed oil itself is red or maroon, there is no rough refining, the oil processed by cottonseed contains gossypol and impurities, so it is necessary to use alkali refining to remove the harmful substances in it to achieve the standard of eating, the process of alkali refining is called refining, which is the most basic process, so there is no roughing.
Hope it helps.
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Anonymous users2024-02-09Causes and ways to distinguish the green color of cottonseed oil:
1. The main reason for the green color of cottonseed oil is the refining method and purity problems, such as the use of chemical separation refining method, the color is yellow and shiny after separation, and the separation is incomplete by pressing method, the color is blue and red, and contains impurities. Generally, the color of cottonseed oil with higher purity is transparent yellow or brown, which is also extracted from peeled cottonseeds, so the purity is higher, and the next one will be directly refined without peeling, but it is also tan or brown-red, and the worst thing is that the cottonseeds are not picked, and there are branches and leaves in it, so the color will be blue when refined.
2. Due to the high quality of cottonseed oil, some merchants will add other oils and fats to be shoddy during processing, so the purity of cottonseed oil will be affected and the color will change. The second is the processing process, the cost of refined cottonseed oil is high, while the cost of roughing is low and the quality is poor.
3. There are many ways to distinguish cottonseed oil, and intuitively looking at the color is one of them. In addition, you can also look at the purity, generally high-purity cottonseed oil is relatively clear and has few floating matter, while rough processing or cottonseed oil with additives will be turbid and contain floating matter.
4. You can also distinguish the real cottonseed oil by smell, generally good cottonseed oil will have a slight spicy taste, the second one will have a greasy taste, and the poor one will have a burnt, musty or grass smell.
Definition of cottonseed oil: cottonseed oil is the oil squeezed from cottonseed, which is divided into pressed cottonseed oil, leached cottonseed oil, genetically modified cottonseed oil, cottonseed **, and finished cottonseed oil.
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