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- Title
Chemical analysis of bioactive iridoids in commercial fruit juices.
- Authors
Shixin Deng
- Abstract
Numerous commercial fruit juice products are marketed worldwide as foods or dietary supplements, and claim to have health benefits. One of the most popular benefits may be antioxidant activity, and flavonoids are usually considered as a natural antioxidant in these products. It is well-known that flavonoids are ubiquitous in plants. In many cases, flavonoids could not represent characteristic bioactive components in fruit juices. Iridoids are a unique secondary metabolite present in some plant families, and have been reported to exhibit many diversified medicinal effects. This work aims to analyze bioactive iridoids in some popular commercial fruit juice products by using an analytical HPLC method, and thus, provides an alternative perspective for comparison of commercial juice products. The experimental results indicate that Tahitian Noni®Original Bioactive Beverage™, the first commercially launched noni juice product with raw noni originating from Tahiti islands has the highest amount of iridoids, much higher than other fruit juice products, including the ones claimed to contain noni juice. The acai juice blend and mangosteen juice blend contain only very little amount of iridoids, which are from their minor ingredient, blueberry juice. No iridoids are found in any other juice products originating from other fruits. Given the various iridoid contents in these juice products, different medicinal benefits would be expected.
- Subjects
FOOD chemistry; FRUIT juices; PLANT products; BIOACTIVE compounds; PLANT metabolites; TAHITIAN Noni International Inc.; HIGH performance liquid chromatography; ANTIOXIDANTS; FLAVONOIDS
- Publication
Journal of Medicinal Food Plants, 2010, Vol 2, Issue 1, p6
- ISSN
1947-3710
- Publication type
Article