Chemical profiling of guarana seeds (Paullinia cupana) from different geographical origins using UPLC-QTOF-MS combined with chemometrics

GS da Silva, KM Canuto, PRV Ribeiro… - Food Research …, 2017 - Elsevier
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 …

Geographical origin of guarana seeds from untargeted UHPLC-MS and chemometrics analysis

RC de Oliveira Salles, MP Muniz, RCS Nunomura… - Food Chemistry, 2022 - Elsevier
Guarana is one of the most popular functional foods in the Amazon and widely used in the
world. This work aimed to study the chemical composition of guarana produced by the main …

[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 …

[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 …

Guarana: revisiting a highly caffeinated plant from the Amazon

FC Schimpl, JF da Silva… - Journal of …, 2013 - Elsevier
Abstract Ethnopharmacological relevance Guarana (Paullinia cupana Kunth var. sorbilis
(Mart.) Ducke) has been traditionally consumed by indigenous communities of the Amazon …

Liquid chromatographic determination of methylxanthines and catechins in herbal preparations containing guaraná

M Carlson, RD Thompson - Journal of AOAC International, 1998 - academic.oup.com
Herbal preparations derived from the dried seeds of guarana (Paullinia cupana) have
become a popular nutritional supplement used for stimulatory purposes. Once considered a …

Quantification of polycyclic aromatic hydrocarbons in toasted guaraná (Paullinia cupana) by high-performance liquid chromatography with a fluorescence detector

LLA Veiga, H Amorim, J Moraes, MC Silva, RSL Raices… - Food chemistry, 2014 - Elsevier
Samples of toasted guaraná seeds with husk from Maués (Amazônia) and ten samples of
different brands of guaraná powder produced in different parts of Brazil were analysed in …

Insoluble-bound polyphenols released from guarana powder: Inhibition of alpha-glucosidase and proanthocyanidin profile

ACC Pinaffi, GR Sampaio, MJ Soares, F Shahidi… - Molecules, 2020 - mdpi.com
The Brazilian Food Supplement Law recently recognized that guarana (Paullinia cupana)
contains bioactive substances, hence supporting its role as a functional food ingredient. The …

[HTML][HTML] Paullinia cupana: a multipurpose plant–a review

LLM Marques, EDF Ferreira, MN de Paula… - Revista Brasileira de …, 2019 - Elsevier
Seeds of guarana (Paullinia cupana Kunth, Sapindaceae) feature diverse pharmacological
functions, for example, antimicrobial, antioxidant, anticarcinogenic, stimulating, and …

Guaraná (Paullinia cupana var. sorbilis): ecological and social perspectives on an economic plant of the central Amazon basin

AR Henman - Journal of ethnopharmacology, 1982 - Elsevier
Guaraná is considered an ideal crop for supplementing the incomes of small peasant
farmers in the Amazon basin. A fast-growing perennial, guaraná can be planted in the midst …