Losses of caffeine and theobromine after 60 hours of UV-A exposure indicate a significant trend of photochemical degradation.
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Methylxanthine and Flavonoid Contents from Guarana Seeds (<i>Paullinia cupana</i>): Comparison of Different Drying Techniques and Effects of UV Radiation.
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Our supplementary experiments involving UV-A and UV-C radiation lamps revealed a decreasing trend in methylxanthines and flavan-3-ols contents with increasing duration of UV radiation exposure. status released display-pdf yes is-olf no is-manuscript no is-preprint no is-journal-matter no is-scanned no is-retracted no Received 2023 Dec 11; Revised 2024 May 23; Accepted 2024 Jun 15; Collection date 2024. 1.