It's a carotenoid, which you can think of as a nutrient. Gardenia Yellow is also a rare water-soluble carotene and is resistant to cooking, making it more versatile.
Of course, natural pigments often have weaknesses, such as their relative ease of fading in acidic environments or dissolved states.
Gardenia has a long history of folk application in China. Barley Grass Powder was used as a fabric dye as early as the Qin and Han Dynasties.
In CCTV's "Flavor Chinese Year," a local chongqing food called Huang Po (Capsicum Oleoresin) is made from glutinous rice and japonica rice, the yellow of which also comes from gardenia.
Now gardenia belongs to the medicinal food substance, gardenia yellow as pigment can be used in flour products, cakes, cookies, candy and more than 20 kinds of food.
For example, you can see gardenia yellow in some of the ingredients for instant noodles, which is mainly used in the bread to give it a golden color.
Flax lignans are generally considered more appetizing, and while they can be 'coloured' by frying, the process produces large amounts of acrylamide.
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