Chemical Profiles of Yerba Mate Infusions Across South American Countries

Author(s):  
Candela Iommi
2016 ◽  
Vol 26 (4) ◽  
pp. 451-458 ◽  
Author(s):  
Geison Modesti Costa ◽  
Andressa Córneo Gazola ◽  
Silvana Maria Zucolotto ◽  
Leonardo Castellanos ◽  
Freddy Alejandro Ramos ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2074 ◽  
Author(s):  
Aneta Krakowska-Sieprawska ◽  
Katarzyna Rafińska ◽  
Justyna Walczak-Skierska ◽  
Bogusław Buszewski

The aim of this study was to develop a new comprehensive extraction protocol based on green technology for the enhanced release of polyphenolic compounds from plant cells. In this work, extracts from yerba mate and yellow lupine seed were obtained by using three different extraction techniques: maceration, supercritical fluid extraction with co-solvent (SFE) and enzyme assisted-supercritical fluid extraction with co-solvent (EA-SFE). Several experimental parameters such as time, type of solvent and co-solvent as well as CO2 flow rate were selected to obtain the highest extraction efficiency. The chemical profiles in the obtained extracts and their biological activity were evaluated. HPLC-MS/MS analysis indicated that the level of phenolic compounds in extracts from yerba mate obtained by EA-SFE was approximately five times higher than for maceration and 3.2 times higher than for SFE. In the case of extracts from yellow lupine seed an approximately 5.6-fold increase was observed in comparison with maceration and SFE with 96% MeOH, and 2.9 times for SFE with 96% EtOH. The developed protocol with a mix of enzymes commonly applied in the agricultural industry significantly raises the efficiency of liberation of secondary metabolites.


2019 ◽  
Vol 116 ◽  
pp. 00054
Author(s):  
Christian Nwankwo ◽  
Stephen Barton ◽  
Heba Ghazal

Yerba-maté (Y-M), known as llex-paraquariensis is traditional South American herbal drink that is consumed as an aqueous extract from the Y-M leaves. This drink is thought to have long-term health benefits and thus it has recently gained more popularity. However, health hazards of polyaromatic hydrocarbons (PAHs) deposited in Y-M during drying process has been linked to the development of different types of cancer in particular oesophageal cancer. The current study developed and validated an extraction and analytical method to determine the presence of one of the PAH compounds, namely; benzo(b)fluoranthene [Bbf] as an indicator for the PAH(s) occurrence in Y-M in commercial samples of the dried leaves. Since the expected level of contamination with this compound is at trace level thus a sensitive and selective analytical method was needed. Gas Chromatography-Mass Spectrometry GC-MS method was developed using selected ion monitoring (SIM) with split-less mode focusing on 126 ion and 252 ion (main) for [Bbf]. The content of [Bbf] using different extraction methods was found in a range 0.02 to 0.09 μg/g. GC-MS results indicated a good repeatability of the peak area with strong correlation and linearity between mean peak area and concentration from the calibration curve. Soxhlet extraction using hexane as a solvent gave the highest yield of [Bbf] concentration. However, ultrasonic extraction using hot distilled water as a solvent is recommended as it better simulates the way of making and drinking.


2019 ◽  
Vol 99 (7) ◽  
pp. 1667-1674
Author(s):  
Mario V. Condini ◽  
Paula E. R. Pereyra ◽  
Alexandre M. Garcia ◽  
Tatiana D. Saint'pierre ◽  
Gianfranco Ceni ◽  
...  

AbstractIn this study, we examine how the Guri catfish Genidens genidens uses estuarine and freshwater habitats along the largest South American coastal lagoon, through the chemical analysis of otoliths and microscopic analysis of gonads. Chemical composition (Sr:Ca) of otolith edges allowed distinguishing between individuals who used the estuarine or freshwater compartments of the lagoon. The analysis of core-to-edge chemical profiles of each individual otolith revealed that the population may present two different patterns of habitat use along the lagoon. The ‘type 1’ pattern (89.5%) includes fish who appear to have been born in estuarine waters, whereas ‘type 2’ (9.5%) includes those fish born in fresh water. Nevertheless, juveniles from both patterns appear to migrate to estuarine waters. The gonad analysis shows G. genidens may reproduce in fresh water, as nearly 57% of all sampled fish were found to spawn in the freshwater portion of the lagoon. Also, the otolith core of many adult fish presented freshwater signatures, thus suggesting consistent fresh water use during early life. Our findings based on otolith and gonadal analyses challenge the previous classification of G. genidens as an estuarine resident. Rather, our results allow the suggestion that this species should be placed in the ‘estuarine and fresh water’ guild, which includes both fish completing their life cycles within the estuary and fish who consistently use freshwater habitats.


2017 ◽  
Vol 47 (12) ◽  
Author(s):  
Lisia Maria Gobbo dos Santos ◽  
Santos Alves Vicentini Neto ◽  
Giovanna Iozzi ◽  
Silvana do Couto Jacob

ABSTRACT: “Mate” or “Yerba Mate” (Ilex paraguariensis) is a native South American plant, commonly consumed in Argentina, Paraguay, Uruguay and southern Brazil. Recent research has detected the presence of many vitamins and metals in this plant. Theses metals are also part of yerba mate’s mineral composition, due to soil and water contamination by pesticides and fertilizers, coal and oil combustion, vehicle emissions, mining, smelting, refining and the incineration of urban and industrial waste. Regardless of their origin, some inorganic elements, such as arsenic, cadmium and lead, are considered toxic, since they accumulate in all plant tissues and are, thus, introduced into the food chain. In this context, the aim of the present study was to determine and compare arsenic, cadmium, lead concentrations in 104 samples of yerba mate (Ilex paraguariensis) marketed, and consumed in three southern Brazilian States, namely Paraná (PR), Santa Catarina (SC) and Rio Grande do Sul (RS). Each element was determined by inductively coupled plasma mass spectrometry (ICP-MS), on a Nexion 300D equipment (Perkin Elmer). As, Cd and Pb concentrations in yerba mate leaves ranged from 0.015 to 0.15mg kg-1, 0.18 to 1.25mg kg-1 and 0.1 to 1.20mg kg-1, respectively. Regarding Cd, 84% of the samples from RS, 63% from PR and 75% from SC showed higher concentrations than the maximum permissible limit of 0.4mg kg-1 established by the Brazilian National Sanitary Surveillance Agency (ANVISA), while 7% of the samples from RS and 5% from PR were unsatisfactory for Pb. Concentrations were below the established ANVISA limit of 0.6mg kg-1 for all samples.


2019 ◽  
Vol 22 (1) ◽  
pp. 97-101
Author(s):  
Washington Rogério de Sousa ◽  
Bruno Henrique Lopes Botelho Lourenço ◽  
Michelle de Paula Reis ◽  
Guilherme Donadel ◽  
Marcia Alessandra Arantes Marques ◽  
...  

2009 ◽  
Vol 9 (2) ◽  
pp. 19-24 ◽  
Author(s):  
sanra ritten

In the midst of the poverty and heat of Paraguay on an estancia, or ranch, in the department of Concepcióón along the Tagatiya river, a group of travelers are taught to make chipa, an iconic Paraguayan food staple. Chipa, a pre-Colombian bread, is made from manioc flour, lard, milk, eggs, salt and anise. Long before wheat was introduced in the region the indigenous Guaraníí depended on manioc for sustenance. Manioc is a calorie-rich tuber, native to the Americas, found in many Paraguayan dishes such as mbeju, soups and sauces. The chipa is traditionally baked atop banana leaves in a brick and clay oven called tatakuáá. While making the chipa the travelers are also introduced to tereréé, a cold herbal tea, and cocido negro, a coffee like beverage also made from the South American herbal tea called yerba mate.


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