Using isotopic characterization to identify the authenticity of Ilex paraguariensis brands marketed in southern Brazil

Author(s):  
José Abramo Marchese ◽  
Silvia Scariotto ◽  
Patricia V. Ellsworth ◽  
Leonel S. L. Sternberg ◽  
Patrick Z. Ellsworth
Land ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 176
Author(s):  
André Eduardo Biscaia Lacerda ◽  
Ana Lúcia Hanisch ◽  
Evelyn Roberta Nimmo

Integrated landscape approaches have been identified as key to addressing competing social, ecological, economic, and political contexts and needs in landscapes as a means to improve and preserve agrobiodiversity. Despite the consistent calls to integrate traditional and local knowledge and a range of stakeholders in the process of developing integrated landscape approaches, there continues to be a disconnect between international agreements, national policies, and local grassroots initiatives. This case study explores an approach to address such challenges through true transdisciplinary and multi-stakeholder research and outreach to develop solutions for integrated landscapes that value and include the experience and knowledge of local communities and farmers. Working collaboratively with small-scale agroforestry farmers in Southern Brazil who continue to use traditional agroecological practices to produce erva-mate (Ilex paraguariensis), our transdisciplinary team is working to collect oral histories, document local ecological knowledge, and support farmer-led initiatives to address a range of issues, including profitability, productivity, and legal restrictions on forest use. By leveraging the knowledge across our network, we are developing and testing models to optimize and scale-out agroforestry and silvopastoral systems based on our partners’ traditional practices, while also supporting the implementation of approaches that expand forest cover, increase biodiversity, protect and improve ecosystem services, and diversify the agricultural landscape. In so doing, we are developing a strong evidence base that can begin to challenge current environmental policies and commonly held misconceptions that threaten the continuation of traditional agroforestry practices, while also offering locally adapted and realistic models that can be used to diversify the agricultural landscape in Southern Brazil.


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.


Zootaxa ◽  
2017 ◽  
Vol 4324 (2) ◽  
pp. 363
Author(s):  
GUILHERME LIBERATO DA SILVA ◽  
ISADORA ZANATTA ESSWEIN ◽  
CATIANE DAMEDA ◽  
NOELI JUAREZ FERLA

Diptilostatus chimarricus n. sp. is described based on specimens collected on Ilex paraguariensis A. St.–Hill. (Aquifoliaceae), commonly known as yerba mate, from southern Brazil. It is the third eriophyoid mite species reported on I. paraguariensis in Brazil. This new species caused no observable damage to its host plant. A key to species of Diptilostatus is provided. Dichopelmus notus Keifer, 1959, also from yerba mate, is redescribed. 


2020 ◽  
Vol 31 (6) ◽  
pp. 1477-1495 ◽  
Author(s):  
Cleiton Frigo ◽  
Ederlan Magri ◽  
Julierme Zimmer Barbosa ◽  
Laudete Maria Sarteretto ◽  
Eloá Moura Araujo ◽  
...  

PurposeVehicular road traffic may represent an important soil and plant contamination source. In this context, the concentration of heavy metals (Cd, Pb, As, Sb, Ni, Cu, Fe, Al, Mn and Zn) and macronutrients (Ca, Mg, K and P) was evaluated in yerba mate (Ilex paraguariensis St. Hil.) cultivations and in soils adjacent to highways.Design/methodology/approachThe investigated yerba mate cultivations were located in southern Brazil. Plant tissue (young and old leaves and branches) and soil (0–10 cm) samples were collected at five distances from the highway (0–10, 10–20, 20–30, 30–40 and 40–50 m). Plant tissue was analyzed with and without washing to evaluate contributions from particulate deposition.FindingsAlthough increases in soil pseudo-total concentrations of Cd, Cu, Ni, Zn, Fe, Mn, Ca and Mg were observed only at the Erechim site, geoaccumulation indices and enrichment factors (EFs) did not indicate any heavy metal pollution. These results indicate the existence of natural variation in soil. Cadmium was more concentrated in branches than in leaves, while the opposite was observed for Pb. High levels of Mn and Al were found in foliar tissue. In summary, highway proximity did not lead to heavy metal contamination of yerba mate under the evaluated conditions.Originality/valueThis research explores the possibility of heavy metal pollution in plantations of yerba mate adjacent to highways and indicates natural concentrations of toxic elements that exceed current legislation, which was an important discovery regarding the yerba mate production chain.


2020 ◽  
Vol 40 (3) ◽  
pp. 645-652
Author(s):  
Acácio Antonio Ferreira ZIELINSKI ◽  
Aline ALBERTI ◽  
Evandro BONA ◽  
Débora Gonçalves BORTOLINI ◽  
Laís BENVENUTTI ◽  
...  

2020 ◽  
Vol 48 (128) ◽  
Author(s):  
Bruno Nascimento ◽  
Alexandra Cristina Schatz Sá ◽  
Carolina Moraes ◽  
Julio Cesar Pires Santos ◽  
Mariane de Oliveira Pereira ◽  
...  

Author(s):  
Roberto Buffo

Yerba mate (Ilex paraguariensis) is a plant original from the subtropical regions of South America, present in Southern Brazil, Northeastern Argentina, Paraguay and Uruguay. It is primarily consumed as a beverage made by steeping the leaves of the plant in hot water. The growing interest in mate products has made it paramount that research on this herbal tea continues, as it has shown extraordinary possibilities not only as a consumer beverage but also in the nutraceutical industry. Yet, there is much to be done: human-based studies to support the properties verified in vitro and in vivo models with animas are scarce.


2020 ◽  
Vol 736 ◽  
pp. 139637 ◽  
Author(s):  
Antônio Carlos Vargas Motta ◽  
Julierme Zimmer Barbosa ◽  
Ederlan Magri ◽  
Guilherme Quaresma Pedreira ◽  
Delmar Santin ◽  
...  

2019 ◽  
Vol 5 (1) ◽  
pp. 6-12
Author(s):  
Manoela Mendes DUARTE ◽  
Maria Cecília MIRESKI ◽  
Afonso OLISZESKI ◽  
Ivar WENDLING ◽  
Carlos André STUEPP

Due to its economic, social, and ecological potential, Ilex paraguariensis A. St. Hil is considered one of the most important native forestry species in southern Brazil, needing high production of quality plants to supply consumption. Therefore, vegetative propagation is a key technique since it enables plants production with higher standard and genetic quality. Several studies have focused on defining appropriate methods for rooting yerba mate cuttings, even though the overall rooting indexes are not yet considered appropriate. Thus, the objective of this study was to evaluate the rooting, root and aerial vigor of yerba mate cuttings and determine the best cuttings length for formation of clonal plants. Twenty parent trees were pruned and after five months epimoric sprouts were collected to prepare stem cuttings with lengths of 2 ± 0.2 cm, 4 ± 0.2 cm, 6 ± 0.2 cm, 8 ± 0.2 cm, 10 ± 0.2 cm and 12 ± 0.2 cm and diameter of 0.5 ± 0.2 cm. We planted cuttings in plastic boxes filled with substrate based on carbonized yerba mate matchsticks and vermiculite. After 120 days we evaluated the percentage of rooting, number of roots per cutting, average length of the 3 largest roots per cutting, cuttings with callus, cuttings with roots and callus, mortality, sprouts emission, and leaf maintenance. Our results show that rooting and vigor of roots in yerba mate stem cuttings are influenced by cuttings length, being 10 cm cuttings the most efficient for clonal propagation of the species.


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