Vitamin content It is a well-known fact that during flash freezing (-30°С or -22°F) vitamin C loses its properties by 15-20%. Canning and preserving don't have the same effect – this way vegetables and fruits lose up to 50% of their vitamin C, and if they are dried – up to 70%. 27 сент. 2019 г.
Does vitamin C survive freezing?
That being said, some research also suggests that frozen produce may retain its antioxidant activity despite the loss of water-soluble vitamins ( 6 , 7 ). Bottom Line: Blanching results in a loss of antioxidants, B-vitamins and vitamin C. However, nutrient levels remain fairly stable after freezing.
Does cold temperature destroy vitamin C?
Vitamin C and heat Vitamin C begins to denature at temperatures as low as 86 °F, according to a study in the International Journal of Scientific and Technology Research. The negative effects of heat increase significantly at 140 and even more at 170 °F.
How can vitamin C be destroyed?
Vitamin C can be destroyed by heat and light. High-heat cooking temperatures or prolonged cook times can break down the vitamin. Because it is water-soluble, the vitamin can also seep into cooking liquid and be lost if the liquids are not eaten.
Does freezing lemon juice destroy vitamin C?
In conclusion, freezing lemon juice does not destroy vitamin C. Freezing lemons is the best way to prevent it from going bad, as it maintains both flavor and color better than other storage methods. Lemon juice can be frozen for up to three months before any noticeable changes in taste or texture become apparent.
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