Caffeine and guarana are safe foods according to the American (FDA) and Brazilian
(ANVISA) health agencies. However, data regarding the composition, quality, and safety of …

Contribution of guaraná powder (Paullinia cupana) as a source of caffeine in the diet Page
1 GUARANÁ EM PÓ COMO FONTE DE CAFEÍNA | 63 Rev. Nutr., Campinas, 20(1):63-68 …

Resumo The State of Bahia, Brazil, stands as the predominant global producer of guarana,
which is recognized for its seeds' caffeine-rich composition. This study aimed to determine …

Paullinia cupana is a plant native to Brazil that is widely used in traditional medicine as a
physical and mental stimulant. It is also used worldwide to produce soft drinks. A method for …

An automated sequential injection analysis spectrophotometric assay for the determination
of purine alkaloids in coffee drinks was developed. The sample was treated with a carrez …

Paullinia cupana Kunth is a compound with therapeutic potential due to the presence of
methylxanthines and tannins. In this sense, the precise and safe quantification of these …

Paullinia cupana, commonly known as guarana, is an Amazonian fruit whose seeds are
used to produce the powdered guarana, which is rich in caffeine and consumed for its …

Background This study was conducted to develop fast and cost effective methods for the
determination of caffeine in green coffee beans. In the present work direct determination of …

Abstract The Identity Of Caffeine As The Major Xanthine Present In Guarana Has Been
Confirmed By Spectroscopic Methods. Theobromine and Theophylline Were Present In …

INFORMATION TO USERS Page 1 INFORMATION TO USERS The most advanced technology
has been used to photograph and reproduce this manuscript from the microfilm master. UMI …