Guest guest Posted August 9, 2009 Report Share Posted August 9, 2009 Does flash pasteurization kill the live enzymes that are contained in fresh juices, like carrot juice? Also, do the RDA percentages on packages represent the amount of nutrients before processing or after processing? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 10, 2009 Report Share Posted August 10, 2009 Flash pasteurization is conducted at super-high temperatures, so yes, the enzymes are destroyed. And the percentages could indicate either before or after processing. Generally, if there are nutrients added, such as in enriched foods, it will indicate what the percentage is post-processing. But if you buy a bottle of OJ, for example, the RDA for vitamin C will appear very high, even though almost all vitamin C is destroyed in the first few minutes of heating (as in pasteurizing). Any vitamin C present was probably added after processing (listed as ascorbic acid). So it's kind of hard to know. When I buy packaged food, I just assume that any added nutrients aren't absorbed very well and that most water-soluble nutrients are lost, so I don't count them very high when I'm estimating my intake. Chandelle On Sun, Aug 9, 2009 at 2:21 PM, <admartin5 wrote: > > > Does flash pasteurization kill the live enzymes that are contained in fresh > juices, like carrot juice? > > Also, do the RDA percentages on packages represent the amount of nutrients > before processing or after processing? > > Quote Link to comment Share on other sites More sharing options...
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