In some studies, it has been shown that during storage of frozen green leafy vegetables, vitamin C losses can reach high levels (60–70%) (Ericson, 1997; Lisiewska & Kmiecik, 1997). In this study, vitamin C content was reduced by 46.1% and 57.9% after 3 and 6 months of frozen storage, respectively (P < 0.05) (Table 1).
Does freezing ruin vitamin C?
Vitamin C: While some amounts of vitamin C are lost in the freezing process, the percentages are much less than those lost during canning. If you don't have access to fresh vitamin C rich foods throughout the winter, frozen foods are a great way to get that important nutrient.
Does freezing orange juice destroy vitamin C?
"Frozen concentrates have more vitamin C in them, quite a bit more, than ready-to-drink juices - since vitamin C is very easily destroyed and ready-to-drink orange juice goes through more processing than concentrates," said study lead author Dr Carol S. Johnston of Arizona State University East in Mesa.
Does freezing lose vitamins?
Generally, frozen foods retain their vitamins and minerals and there is no change to the carbohydrate, protein or fat content. In some cases, frozen foods have more vitamins and minerals compared to fresh because fresh foods lose vitamins and minerals over time while freezing preserves nutrients.
What temperature does vitamin C deteriorate?
Vitamin C begins to denature with exposure to temperatures as low as 86 degrees Fahrenheit, according to a study done by N.C. Igwemmar, S.A. Kolawole, I.A. Imran in the International Journal of Scientific and Technology Research.
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Does freezing denature vitamin C?Does food lose vitamins when frozen?
