Micronutrients & recovery
Processing methods (blanching, freezing, drying) significantly alter the retention of bioactive compounds in carrots, with some methods increasing phenolic content while others decrease it.
How you prepare carrots matters. Blanching before freezing or juicing can sometimes increase the availability of phenolic compounds compared to just pasteurizing. However, making jam or marmalade from black carrots significantly reduces phenolic content and antioxidant capacity. For maximum benefit, consider blanching or light cooking rather than prolonged high-heat processing or making jams.
Ma et al. [36] studied the effects of different processing units on fresh carrot juice and concluded that blanching and enzyme liquefaction can increase total phenolic content, while pasteurization decreases total phenolic content compared to fresh carrot juice.
Why this rating
The paper cites multiple studies showing variable results based on processing type.
Source
Phytochemicals in Daucus carota and Their Health Benefits—Review Article
Tanveer Ahmad et al. · Foods · 2019
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