Total Phenolic Contents and Antioxidant Activity in Oxidized Leaves of Mate (Ilex paraguariensis St. Hil)

Molin, Rochele Fernanda; Dartora, Nessana; Borges, Ana Cláudia Piovezan; Gonçalves, Itamar Luís; Luccio, Marco Di; Valduga, Alice Teresa

doi:10.1590/s1516-8913201402305

Cited by 13 publications

(13 citation statements)

References 25 publications

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“…It is widely accepted that the counteraction on oxidative stress is mainly attributable to the existing phenolic compounds, especially chlorogenic acids (like mono- and dicaffeoylquinic acids) as well as flavonols [ 49 , 50 ], since in vitro antioxidant capacity has been confirmed to be positively correlated with their concentrations [ 13 , 51 ]. In order to better retain the contents and stability of health-beneficial antioxidants in Ilex teas, more attention should be paid to the adjustment of industrial processing methods and the improvement of packaging methods [ 22 , 52 ].…”

Section: Health Benefitsmentioning

confidence: 99%

“…In addition, Yerba Mate produced from leaves of the tree Ilex paraguariensis is a widely consumed beverage in South American countries such as Argentina, Brazil, Chile, Paraguay, and Uruguay, and the average annual consumption reaches around 3 kg to 10 kg per person. Yerba Mate tea has developed into a main alternative to coffee and black tea since it is characterized as having various health benefits, such as antimicrobial, antioxidant, anti-obesity, anti-diabetic, and cardiovascular protective effects [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Moreover, in the southeastern part of the United States, Yaupon tea (Yaupon Holly, Ilex vomitoria ) is prepared as a healthy beverage by Native Americans [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Health Benefits of Bioactive Compounds from the Genus Ilex, a Source of Traditional Caffeinated Beverages

et al. 2018

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Tea and coffee are caffeinated beverages commonly consumed around the world in daily life. Tea from Camellia sinensis is widely available and is a good source of caffeine and other bioactive compounds (e.g., polyphenols and carotenoids). Other tea-like beverages, such as those from the genus Ilex, the large-leaved Kudingcha (Ilex latifolia Thunb and Ilex kudingcha C.J. Tseng), Yerba Mate (Ilex paraguariensis A. St.-Hil), Yaupon Holly (Ilex vomitoria), and Guayusa (Ilex guayusa Loes) are also traditional drinks, with lesser overall usage, but have attracted much recent attention and have been subjected to further study. This review summarizes the distribution, composition, and health benefits of caffeinated beverages from the genus Ilex. Plants of this genus mainly contain polyphenols and alkaloids, and show diverse health benefits, which, as well as supporting their further popularization as beverages, may also lead to potential applications in the pharmaceutical or nutraceutical industries.

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Section: Health Benefitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Health Benefits of Bioactive Compounds from the Genus Ilex, a Source of Traditional Caffeinated Beverages

et al. 2018

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“…The results show that the crude seed methanol extract of HT has strong antioxidant activity when compared with BHA and BHT. These activities of plant extracts are mainly attributed to the presence of rich phenolic compounds [30].…”

Section: Total Phenolic Content and Antioxidant Findingsmentioning

confidence: 99%

A Histopathological, Immunohistochemical and Biochemical Investigation on the in vitro Antioxidant, Myeloprotective, Hematoprotective and Hepatoprotective Effects of Hypericum triquetrifolium Seed Extract Against Cyclophosphamide-Induced Toxicity

Yıldız

Keskin

Şahıntürk

et al. 2019

Braz. arch. biol. technol.

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The aim of this study was to investigate in vitro antioxidant properties and in vivo protective effects of the methanol extract of the Hypericum triquetrifolium Turra (HT) seed against acute hepatotoxicity, myelotoxicity and hematotoxicity in rats induced by cyclophosphamide (CP). In order to investigate in vivo protective effects of the HT extract on rat tissues, the rats were divided into nine groups. The toxic effects of CP and the protective effects of HT extract on nucleated cells that are produced by bone marrow, serum alanine transaminase (ALT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and oxidative stress index (OSI) levels were investigated biochemically. Additionally, liver tissue samples were examined for histopathological changes and apoptosis by Bcl-2, Bax and caspase-3 immunohistochemistry. The results of this study show that HT seed methanol extract has high total phenolic content (179.52 μg GAE/mg) and antioxidant activity (87.48% in 500 μg/mL concentration). CP administration caused hepatotoxicity, myelotoxicity and hematotoxicity in the rats. Whereas, the groups of rats that were injected with different concentrations of HT (25, 50 and 100 mg/kg) and CP (150 mg/kg) showed significant protective effects on bone marrow nucleated cells and important decreases on serum ALT, ALP, LDH and OSI levels were observed when compared with the CP injected group.

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“…Taking into account that high temperatures may lead to increased levels of the toxically polycyclic aromatic hydrocarbons (PHAs), in the present study we used Ilex paraguariensis leaves that were dried at low temperature to avoid PHAs [17]. Although the stability of phenolic compounds in Ilex paraguariensis leaves and leaf powder has been reported [18,19], the referred stability for Ilex paraguariensis infusions was not found in the literature. In addition, there is a lack of information about the in vitro iron chelating activity of Ilex paraguariensis infusion regarding the preparation method and the stabilities if phenolics and iron chelating after storage at different temperatures, and mainly the potential iron chelating effect in humans.…”

Section: Introductionmentioning

confidence: 98%

Elevated Iron Chelating Activity of Ilex paraguariensis Leaf Infusion: in vitro and in vivo Pilot Studies

Pagliosa

Vieira

Silveira

et al. 2021

Braz. arch. biol. technol.

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This study presents an Ilex paraguariensis leaf infusion with important potential as natural ironchelating. The impact of infusion time and the water volume to obtain an Ilex paraguariensis leaf infusion with high phenolic content and iron chelating activity, such as the stability of these proprieties in the storage time and temperature (immediately and after 24 h at 8 and 25 C) were assessed. The acute consumption effect of this infusion to reduce iron absorption in vivo was also evaluated. A preliminary crossover trial with volunteers that ingested a meal containing non-haem iron (11.4 mg) with the treatments: Ilex paraguariensis leaf infusion with the highest phenolic content and iron chelating activity (200 mL) or control (200 mL water). Blood samples were withdrawn before and 1, 2, 3 and 4 h after the meal for serum iron measurement. The highest phenolic content (18.1 mg/mL) and iron chelating activity (100%) were observed for 10 min infusion time using 30 g leaves/300 mL water. Storage at 8 or 25 C for 24 h decreased total phenolics and dicaffeoylquinic acids by 23.5% and 25.5%, respectively (p< 0.05), without affecting the iron-chelating activity due to a saturating chelating effect at 3.34 mg/mL phenolic content. Inhibition of the iron absorption in vivo by infusion was 78% considering the iron recovery at peak maximum. The in vitro and preliminary in vivo results showed a functional property of the Ilex paraguariensis leaf infusion that may be useful for adjuvant management of iron overload diseases. Keywords: Ilex paraguariensis leaf infusion; iron chelating activity; phenolic compounds; in vitro and in vivo studies. HIGHLIGHTS Ilex paraguariensis infusion reaches elevated iron chelating potential. Storage for 24h decreases phenolic acids without affecting iron chelating activity. This infusion may be exploited as a natural iron chelating agent. 2 Pagliosa, C.M.; et al.

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Total Phenolic Contents and Antioxidant Activity in Oxidized Leaves of Mate (Ilex paraguariensis St. Hil)

Abstract: Ilex paraguariensis is a native species to South America. Its economic importance is in the use of its leaves and twigs

Cited by 13 publications

References 25 publications

Health Benefits of Bioactive Compounds from the Genus Ilex, a Source of Traditional Caffeinated Beverages

Health Benefits of Bioactive Compounds from the Genus Ilex, a Source of Traditional Caffeinated Beverages

A Histopathological, Immunohistochemical and Biochemical Investigation on the in vitro Antioxidant, Myeloprotective, Hematoprotective and Hepatoprotective Effects of Hypericum triquetrifolium Seed Extract Against Cyclophosphamide-Induced Toxicity

Elevated Iron Chelating Activity of Ilex paraguariensis Leaf Infusion: in vitro and in vivo Pilot Studies

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