Development and validation of an analytical method by HPLC-DAD for determination of caffeine in products based on guarana extracts (Paullinia cupana)
AK Moura-Silva, BJ Mano-Sousa, LP Santos… - Brazilian Journal of …, 2023 - SciELO Brasil
Guarana (Paullinia cupana) is a native plant from the Amazon whose seeds contain a high
concentration of caffeine. Aqueous extract of guarana is widely used in the world. In this …
concentration of caffeine. Aqueous extract of guarana is widely used in the world. In this …
DEVELOPMENT AND VALIDATION OF A FAST AND SIMPLE HPLC-UV METHOD TO DETERMINE CAFFEINE IN GUARANA (Paullinia cupana) FOOD …
JCP Coura, CAO Silva, ES Silva, SA Valladão… - Química …, 2021 - SciELO Brasil
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 …
(ANVISA) health agencies. However, data regarding the composition, quality, and safety of …
[PDF][PDF] DEVELOPMENT AND VALIDATION OF A FAST AND SIMPLE HPLC-UV METHOD TO DETERMINE CAFFEINE
JCP Couraa, CAO e Silvaa, ES Silvaa, SA Valladãoa… - pdfs.semanticscholar.org
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 …
(ANVISA) health agencies. However, data regarding the composition, quality, and safety of …
[PDF][PDF] Contribution of guaraná powder (Paullinia cupana) as a source of caffeine in the diet
SAV Tfouni, MCR Camargo, SHP Vitorino… - Rev. Nutrição, 2007 - SciELO Brasil
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 …
1 GUARANÁ EM PÓ COMO FONTE DE CAFEÍNA | 63 Rev. Nutr., Campinas, 20(1):63-68 …
HPLC determination of caffeine and theophylline in Paullinia cupana Kunth (guarana) and Cola spp. samples.
F Belliardo, A Martelli, MG Valle - Zeitschrift fur Lebensmittel …, 1985 - europepmc.org
A reversed-phase high-performance liquid-chromatographic method for the determination of
caffeine and theophylline in commercial guarana samples (drug obtained from the seeds of …
caffeine and theophylline in commercial guarana samples (drug obtained from the seeds of …
A quantitative method for the analysis of xanthine alkaloids in Paullinia cupana (guarana) by capillary column gas chromatography
RS Pagliarussi, LAP Freitas… - Journal of separation …, 2002 - Wiley Online Library
The aim of the present study was to develop a capillary gas chromatography method for the
quantitative analysis of caffeine in Brazilian guarana as seed powder, dried crude ethanol …
quantitative analysis of caffeine in Brazilian guarana as seed powder, dried crude ethanol …
[HTML][HTML] A rapid simultaneous determination of methylxanthines and proanthocyanidins in Brazilian guaraná (Paullinia cupana Kunth.)
KN Machado, AA de Freitas, LH Cunha, AAG Faraco… - Food chemistry, 2018 - Elsevier
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 …
physical and mental stimulant. It is also used worldwide to produce soft drinks. A method for …
Comprehensive evaluation of methylxanthines and phenolic compounds in Bahia's guarana (Paullinia cupana), Brazil: implications for variety selection and by …
CAM ROCHA, GM SANTANA… - Food Science and …, 2024 - fst.emnuvens.com.br
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 …
which is recognized for its seeds' caffeine-rich composition. This study aimed to determine …
[HTML][HTML] Development of an analytical method using reversed-phase HPLC-PDA for a semipurified extract of Paullinia cupana var. sorbilis (guaraná)
T Klein, R Longhini, JCP de Mello - Talanta, 2012 - Elsevier
The Neotropical plant 'guaraná'has been widely used in medicine, cosmetics, and industry
because of its versatile biological activities. These effects are mainly attributed to the …
because of its versatile biological activities. These effects are mainly attributed to the …
Chemical profiling of guarana seeds (Paullinia cupana) from different geographical origins using UPLC-QTOF-MS combined with chemometrics
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 …
used to produce the powdered guarana, which is rich in caffeine and consumed for its …