Guarana as a source of bioactive compounds

Silva, Cintia Pereira da; Soares-Freitas, Rosana Aparecida Manólio; Sampaio, Geni Rodrigues; Camargo, Adriano Costa de; Torres, Érica Miranda de

doi:10.31665/jfb.2019.5186

Cited by 2 publications

(2 citation statements)

References 41 publications

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“…Polyphenols bind proteins due to the formation of hydrogen bonds or addition of nucleophiles to oxidized phenolics as quinones and specific methods have been developed for discovering new enzyme inhibitors aiming at designing new functional foods and/or nutraceuticals [ 65 ]. Accordingly, several sources of phenolic compounds have been tested for their inhibitory activity toward alpha-glucosidase [ 66 , 67 ]. The antidiabetic effect of natural compounds has been in the spotlight of various researchers [ 68 , 69 ].…”

Section: Resultsmentioning

confidence: 99%

Do Flavonoids from Durum Wheat Contribute to Its Bioactive Properties? A Prospective Study

et al. 2021

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A clear gap with respect to the potential biological properties of wheat flavonoids exists in the available literature. This information is crucial for breeding programs aiming to produce new varieties presenting improved health benefits. Accordingly, advanced breeding lines of whole durum wheat were evaluated in this contribution. The highest recovery of phenolics was achieved using aqueous acetone (50:50, v/v), as verified by multi-response optimization, thus showing that phenolics could be largely underestimated by employing an inappropriate extraction. The concentration of derivatives of apigenin, the main phenolics present, ranged from 63.5 to 80.7%, as evaluated by LC–ESI-QTOF-MS. Phenolics from the breeding line 98 exhibited the highest ability in scavenging peroxyl radicals, reducing power as well as in terms of inhibition of pancreatic lipase activity, a key enzyme regulating the absorption of triacylglycerols. In contrast, none of the samples exhibited a significant anti-diabetic potential. Despite their high concentration compared to that of phenolic acids, results of this work do not support a significant antioxidant and pancreatic lipase inhibitory effect of durum wheat flavonoids. Therefore, breeding programs and animal and/or human trials related to the effect of durum wheat flavonoids on oxidative stress and absorption of triacylglycerols are discouraged at this point.

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Section: Resultsmentioning

confidence: 99%

Do Flavonoids from Durum Wheat Contribute to Its Bioactive Properties? A Prospective Study

et al. 2021

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“…Brazil is the only commercial producer of guarana, with a yield of 3,726 metric tons yr −1 in 2018 (IBGE, 2019). Several studies have demonstrated guarana as a source of bioactive compounds, methylxanthines and catechins, with energetic and antioxidant properties (Marques, Ferreira, Paula, Klein, & Mello, 2019; Moustakas et al., 2015; Ruchel et al., 2017; Salomão‐Oliveira, Lima, Marinho, & Carvalho, 2018; Silva, Soares‐Freitas, Sampaio, Camargo, & Torres, 2019; Yonekura et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Phytochemistry divergence among guarana genotypes as a function of agro‐industrial characters

et al. 2020

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Guarana [Paullinia cupana var. sorbilis (Mart.) Ducke] is a typical South American plant, native to the Amazon, with subspontaneous occurrence in Maués, Amazonas, Brazil, where it was domesticated and cultivated by the Sateré‐Mawé indigenous community. Guarana is an original Brazilian product with great economic and industrial potential owing to the energetic, antioxidant, and medicinal properties of its seeds. In spite of its importance, there is still a gap in knowledge about genetic diversity and adaptations that might improve agro‐industrial uses of guarana seeds. This study was aimed at estimating phytochemical diversity, classification, and typology of guarana genotypes. Agro‐industrial potential among eight genotypes was estimated based on phytochemical characters (theobromine, caffeine, catechin, and epicatechin content, quantified by high performance liquid chromatography) and yield in three locations from harvests between 2015 and 2016. Phytochemical divergence was assessed by the mean Euclidean distance. Grouping was performed by the unweighted pair‐group method using arithmetic averages. Metabolite content varied considerably between genotypes (e.g., among caffeine [3.23–7.35%], catechin [0.20–3.57%], and epicatechin [0.09–4.22%]), and dry seed yield was the character with the greatest variation (0.048–5.13 kg plant−1). The metabolic profile variations of the genotypes were clustered into three chemotypes: energetic and antioxidant guarana (genotypes CIR815, CIR904, and CMA498); antioxidant guarana (genotypes BRS‐Maués and CMU874); and energetic guarana (genotypes CMA831, CMU952, and BRS‐CG372). Genotypes CIR815, CIR904, and CMU874 have the potential to be future commercial cultivars, providing quality raw material for soft drinks, energy drinks, and pharmaceutical products.

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Guarana as a source of bioactive compounds

Cited by 2 publications

References 41 publications

Do Flavonoids from Durum Wheat Contribute to Its Bioactive Properties? A Prospective Study

Do Flavonoids from Durum Wheat Contribute to Its Bioactive Properties? A Prospective Study

Phytochemistry divergence among guarana genotypes as a function of agro‐industrial characters

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