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Monteiro S, Dias J, Lourenço V, Partidário A, Lageiro M, Lampreia C, Fernandes J, Lidon F, Reboredo F, Alvarenga N. Development of a Functional Dark Chocolate with Baobab Pulp. Foods 2023; 12:foods12081711. [PMID: 37107506 PMCID: PMC10137990 DOI: 10.3390/foods12081711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/13/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, cocoa and dark chocolate have attracted the interest of consumers not only for their sensory characteristics but also for their nutritional properties and positive impact on health. The baobab is a fruit of African origin with a sour and slightly sweet flavour, widely consumed by local communities due to its unique nutritional features. The aim of this work was to evaluate the impact of the concentration of baobab flour in the development of functional dark chocolate, including physical, chemical, nutritional and sensory evaluations. The results presented a positive correlation between the incorporation of baobab flour and the antioxidant activity (up to 2297 mmol TE/100 g), vitamin C content (up to 49.7 mg/100 g), calcium (up to 1052 mg/kg), potassium (up to 10,175 mg/kg), phosphorus (up to 795.9 mg/kg), chlorine (up to 235.4 mg/kg) and sulphur (up to 1158 mg/kg). The sensory evaluation of dark chocolate with 3% baobab presented the highest evaluation on the parameters "texture" and "overall flavour", while the parameter "overall flavour" presented the lowest evaluation on chocolate with 9% baobab. No influence was observed on fatty acid profile, protein, fat and hardness.
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Affiliation(s)
- Sara Monteiro
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Dias
- Instituto Politécnico de Beja, Escola Superior Agrária, Rua Pedro Soares, 7800-295 Beja, Portugal
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Vanda Lourenço
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Center for Mathematics and Applications (NOVA Math), Department of Mathematics, NOVA SST, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Partidário
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Manuela Lageiro
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Célia Lampreia
- Instituto Politécnico de Beja, Escola Superior Agrária, Rua Pedro Soares, 7800-295 Beja, Portugal
| | - Jaime Fernandes
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando Lidon
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando Reboredo
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Nuno Alvarenga
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
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2
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Daccak D, Lidon FC, Luís IC, Marques AC, Coelho ARF, Pessoa CC, Caleiro J, Ramalho JC, Leitão AE, Silva MJ, Rodrigues AP, Guerra M, Leitão RG, Campos PS, Pais IP, Semedo JN, Alvarenga N, Gonçalves EM, Silva MM, Legoinha P, Galhano C, Kullberg JC, Brito M, Simões M, Pessoa MF, Reboredo FH. Zinc Biofortification in Vitis vinifera: Implications for Quality and Wine Production. Plants (Basel) 2022; 11:2442. [PMID: 36145843 PMCID: PMC9501456 DOI: 10.3390/plants11182442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/02/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Nowadays, there is a growing concern about micronutrient deficits in food products, with agronomic biofortification being considered a mitigation strategy. In this context, as Zn is essential for growth and maintenance of human health, a workflow for the biofortification of grapes from the Vitis vinifera variety Fernão Pires, which contains this nutrient, was carried out considering the soil properties of the vineyard. Additionally, Zn accumulation in the tissues of the grapes and the implications for some quality parameters and on winemaking were assessed. Vines were sprayed three times with ZnO and ZnSO4 at concentrations of 150, 450, and 900 g ha-1 during the production cycle. Physiological data were obtained through chlorophyll a fluorescence data, to access the potential symptoms of toxicity. At harvest, treated grapes revealed significant increases of Zn concentration relative to the control, being more pronounced for ZnO and ZnSO4 in the skin and seeds, respectively. After winemaking, an increase was also found regarding the control (i.e., 1.59-fold with ZnSO4-450 g ha-1). The contents of the sugars and fatty acids, as well as the colorimetric analyses, were also assessed, but significant variations were not found among treatments. In general, Zn biofortification increased with ZnO and ZnSO4, without significantly affecting the physicochemical characteristics of grapes.
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Affiliation(s)
- Diana Daccak
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando C. Lidon
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Inês Carmo Luís
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Coelho Marques
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Rita F. Coelho
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Cláudia Campos Pessoa
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Caleiro
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José C. Ramalho
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- PlantStress & Biodiversity Laboratory, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 2784-505, Oeiras and Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - António E. Leitão
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- PlantStress & Biodiversity Laboratory, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 2784-505, Oeiras and Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Maria José Silva
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- PlantStress & Biodiversity Laboratory, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 2784-505, Oeiras and Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Ana Paula Rodrigues
- PlantStress & Biodiversity Laboratory, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 2784-505, Oeiras and Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Mauro Guerra
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal
| | - Roberta G. Leitão
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal
| | - Paula Scotti Campos
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Isabel P. Pais
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - José N. Semedo
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Nuno Alvarenga
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Elsa M. Gonçalves
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Maria Manuela Silva
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Escola Superior de Educação Almeida Garrett (ESEAG-COFAC), Avenida do Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Paulo Legoinha
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Carlos Galhano
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José Carlos Kullberg
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Maria Brito
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Manuela Simões
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Maria Fernanda Pessoa
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando H. Reboredo
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBiotec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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3
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Monteiro S, Reboredo FH, Lageiro MM, Lourenço VM, Dias J, Lidon F, Abreu M, Martins APL, Alvarenga N. Nutritional Properties of Baobab Pulp from Different Angolan Origins. Plants 2022; 11:plants11172272. [PMID: 36079651 PMCID: PMC9460372 DOI: 10.3390/plants11172272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022]
Abstract
The baobab tree (Adansonia digitata L.) is found widely in the forests and savannas of sub-Saharan Africa. The baobab fruit has a sour and slightly sweet taste and is widely consumed by the natives, thus containing a high nutritional value and providing a source of income for rural people. This study aimed to compare the nutritional composition of baobab fruit pulp from different localities in the Namibe province (Angola). Twenty samples of baobab pulp were collected in markets of the four municipalities of Namibe. The results obtained showed that there is some geographic location dependence on nutritional and functional composition. The municipality of Camucuio showed samples with higher fibre content (56.62 g/100 g) and vitamin C (288.9 mg/100 g). Samples from the Virei municipality stood out for their antioxidant activity (1936 mmol TE/100 g), high K content (42.4 mg/g) and higher values of protein (2.42 g/100 g). The samples collected in the municipality of Bibala stood out for their high contents of carbohydrates (28.1 g/100 g), total phenolic compounds (972 mg GAE/100 g) and Ca (3.80 mg/g). Despite the differences in origin, the high nutritional value of baobab fruit has the potential to improve the diet of thousands of people in Africa qualitatively.
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Affiliation(s)
- Sara Monteiro
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando H. Reboredo
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Maria Manuela Lageiro
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Vanda M. Lourenço
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- NOVA Math Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Dias
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Politécnico de Beja, Rua Pedro Soares, 7800-295 Beja, Portugal
| | - Fernando Lidon
- Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Marta Abreu
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
- LEAF Research Center, ISA, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - António P. L. Martins
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Nuno Alvarenga
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- UTI, Instituto Nacional de Investigação Agrária e Veterinária IP, Quinta do Marquês, 2780-157 Oeiras, Portugal
- Correspondence:
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4
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Dias JM, Lage P, Alvarenga N, Garcia J, Borrega J, Santos MT, Lampreia C, Coelho L, Pássaro J, Martins J, Caeiro J, Gonçalves EM, Martins A. Impact of environmental conditions on the ripening of Queijo de Évora PDO cheese. J Food Sci Technol 2021; 58:3942-3952. [PMID: 34471318 PMCID: PMC8357912 DOI: 10.1007/s13197-020-04856-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/23/2020] [Accepted: 10/08/2020] [Indexed: 10/23/2022]
Abstract
"Queijo de Évora" is a traditional Portuguese cheese from raw ewe's milk and granted with PDO label. It is ripened traditionally in rooms with empirical control of temperature and humidity. Nowadays, almost all cheese factories use rooms with temperature and humidity control, but still a significant heterogeneity among cheeses is acknowledged due to unequal distribution of environmental conditions. This paper discusses the influence of the environmental conditions on the ripening of Queijo de Évora, including the application of computational fluid dynamics in steady state conditions. Experimental data was obtained in cheeses ripened along the traditional ripening cycle, in different locations. A significant influence of environmental conditions was observed, especially air velocity and humidity, affecting physical-chemical, microbiological and sensory characteristics. Locations with higher air velocity, presented cheeses with lower moisture content, higher mesophilic bacteria count, darker appearance and higher number of holes. Locations with higher humidity presented cheeses with lower scores on some sensorial parameters like appearance, firmness and intensity of odor. The results of computational fluid dynamics made possible the identification of areas in and around the cheese stacks were the air distribution is less than adequate or uneven, which may influence the evolution of cheese during ripening.
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Affiliation(s)
- João Mestre Dias
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências E Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Patricia Lage
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal
| | - Nuno Alvarenga
- Unidade de Tecnologia E Inovação, INIAV IP, Quinta Do Marquês, 2780-157 Oeiras, Portugal
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências E Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Garcia
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal
- CINEA-IPS, Energy and Environment Research Centre, IPS Campus, Estefanilha, 2760-761 Setúbal, Portugal
| | - Joana Borrega
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal
| | | | - Célia Lampreia
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal
| | - Luis Coelho
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal
- CINEA-IPS, Energy and Environment Research Centre, IPS Campus, Estefanilha, 2760-761 Setúbal, Portugal
| | - João Pássaro
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal
| | - João Martins
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal
| | - José Caeiro
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal
| | - Elsa M. Gonçalves
- Unidade de Tecnologia E Inovação, INIAV IP, Quinta Do Marquês, 2780-157 Oeiras, Portugal
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências E Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - António Martins
- Unidade de Tecnologia E Inovação, INIAV IP, Quinta Do Marquês, 2780-157 Oeiras, Portugal
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências E Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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5
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Reboredo FH, Junior W, Pessoa MF, Lidon FC, Ramalho JC, Leitão RG, Silva MM, Alvarenga N, Guerra M. Elemental Composition of Algae-Based Supplements by Energy Dispersive X-ray Fluorescence. Plants (Basel) 2021; 10:2041. [PMID: 34685850 PMCID: PMC8541454 DOI: 10.3390/plants10102041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 11/17/2022]
Abstract
The aim of this study is to evaluate the elemental composition of fifteen algae-based supplements commonly sold in the Portuguese market, by energy dispersive X-ray fluorescence. Despite the fact that the majority of Kelp samples were a good source of iodine, the levels observed might well contribute to an excess in the human body, which can cause dysfunction of the thyroid gland. Furthermore, the presence of lead in Sea spaghetti, Arame, Hijiki and Wakame caused a considerable risk to public health vis a vis possible ingestion of a high daily dose. Regarding arsenic, great variability was observed in all the samples with concentrations equal to or above 60 μg/g in the case of Arame, KelpJ and Hijiki. Although algae mainly accumulate organic arsenic, some also contain high levels of its inorganic form, as is commonly pointed out for Hijiki. Thus, regular ingestion of these supplements must also take into account the mentioned facts. There is no doubt that these supplements are also good sources of other nutrients, but the lack of accurate regulations and control should alert consumers to avoid indiscriminate use of these types of products.
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Affiliation(s)
- Fernando H. Reboredo
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (W.J.); (M.F.P.); (F.C.L.); (J.C.R.)
| | - Walter Junior
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (W.J.); (M.F.P.); (F.C.L.); (J.C.R.)
| | - Maria F. Pessoa
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (W.J.); (M.F.P.); (F.C.L.); (J.C.R.)
| | - Fernando C. Lidon
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (W.J.); (M.F.P.); (F.C.L.); (J.C.R.)
| | - José C. Ramalho
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (W.J.); (M.F.P.); (F.C.L.); (J.C.R.)
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 2784-505 Lisboa, Portugal
| | - Roberta G. Leitão
- LIBPHYS-UNL, Physics Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal;
| | | | - Nuno Alvarenga
- Instituto Nacional de Investigação Agrária e Veterinária, I.P., UTI—Unidade de Tecnologia e Inovação, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Mauro Guerra
- LIBPHYS-UNL, Physics Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal;
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Alvarenga N, Martins J, Caeiro J, Garcia J, Pássaro J, Coelho L, Santos MT, Lampreia C, Martins A, Dias J. Applying Computational Fluid Dynamics in the Development of Smart Ripening Rooms for Traditional Cheeses. Foods 2021; 10:1716. [PMID: 34441494 PMCID: PMC8394216 DOI: 10.3390/foods10081716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022] Open
Abstract
Traditional ewe's cheese producers face certain challenges caused by fluctuating environmental parameters inside the ripening room, which lead to lack of homogeneity in the final product. The present research discusses the application of computer fluid dynamics for simulating the distribution of environmental parameters, predicting the airflow pattern, and identifying critical areas where such parameters could cause reduced cheese quality. A new monitoring system was developed including presence sensors, temperature and humidity dataloggers, pneumatic actuators, microcontrollers, and microcomputers connected remotely for control, data visualization, and processing. The validation of the computer simulation and monitoring system was made with a batch of 40 ewe's cheeses distributed in three different zones inside a prototype ripening room and ripened for 35 days. At 35 days, a physical, chemical, and microbiological characterization of cheeses was made for evaluation of the influence of environmental conditions on cheese quality. The comparison between simulated and local measurements showed close agreement, especially concerning air velocity inside the stacks of cheese. The results of Pearson's correlation analysis and PCA concluded that temperature affected the appearance of the rind, hardness, number and area occupied by holes. Humidity affected aw and mFeret. Air velocity affected pH and the circularity of gas holes.
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Affiliation(s)
- Nuno Alvarenga
- Unidade de Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (N.A.); (A.M.)
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Martins
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal; (J.M.); (J.C.); (M.T.S.); (C.L.)
| | - José Caeiro
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal; (J.M.); (J.C.); (M.T.S.); (C.L.)
| | - João Garcia
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal; (J.G.); (J.P.); (L.C.)
- CINEA-IPS, Energy and Environment Research Centre, IPS Campus, Estefanilha, 2760-761 Setúbal, Portugal
| | - João Pássaro
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal; (J.G.); (J.P.); (L.C.)
| | - Luis Coelho
- Instituto Politécnico de Setúbal, Estefanilha, 2760-761 Setúbal, Portugal; (J.G.); (J.P.); (L.C.)
- CINEA-IPS, Energy and Environment Research Centre, IPS Campus, Estefanilha, 2760-761 Setúbal, Portugal
| | - Maria Teresa Santos
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal; (J.M.); (J.C.); (M.T.S.); (C.L.)
| | - Célia Lampreia
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal; (J.M.); (J.C.); (M.T.S.); (C.L.)
| | - António Martins
- Unidade de Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (N.A.); (A.M.)
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João Dias
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Instituto Politécnico de Beja, Rua de Pedro Soares, 7800-295 Beja, Portugal; (J.M.); (J.C.); (M.T.S.); (C.L.)
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Dias J, Lage P, Garrido A, Machado E, Conceição C, Gomes S, Martins A, Paulino A, Duarte MF, Alvarenga N. Evaluation of gas holes in "Queijo de Nisa" PDO cheese using computer vision. J Food Sci Technol 2020; 58:1072-1080. [PMID: 33678890 DOI: 10.1007/s13197-020-04621-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/03/2020] [Accepted: 07/03/2020] [Indexed: 01/11/2023]
Abstract
"Queijo de Nisa" is a traditional Portuguese cheese, granted with PDO label, produced with raw ewe's milk in which the aqueous extract of cardoon flower Cynara cardunculus L. is the only coagulant allowed. As in similar cheeses with no use of starter cultures or pasteurisation, the quality and food safety are depending on prevention, high hygienic standards and a proper manufacturing process. This study investigated the use of computer vision as novel method for the evaluation of gas holes in Queijo de Nisa in three different ripening dates (0, 15 and 35 days). A total of 48 samples were produced using cardoon flower from three different origins (C1, C2 and C3) and a commercial vegetable coagulant (C4). The results presented a high correlation between image-dependent attributes and physical-chemical properties during ripening time, especially within the first 15 days of ripening time, where major structural changes were observed inside the Queijo de Nisa cheese. Principal component analysis presented a strong correlation (p < 0.05) between image parameters and the physical-chemical evolution until 15 days. From 15 to 35 days, the evolution of cheeses was mainly depending on structural parameters, like G'1 Hz and hardness. No influence was observed due to the geographical origin of cardoon flower.
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Affiliation(s)
- João Dias
- Escola Superior Agrária, Instituto Politécnico de Beja, Rua Pedro Soares, Campus do Instituto Politécnico de Beja, 7800-295 Beja, Portugal
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Patricia Lage
- Escola Superior Agrária, Instituto Politécnico de Beja, Rua Pedro Soares, Campus do Instituto Politécnico de Beja, 7800-295 Beja, Portugal
| | - Ana Garrido
- Departamento de Zootecnia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Eliana Machado
- Departamento de Biologia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Cristina Conceição
- Departamento de Zootecnia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
- MED - Mediterranean Institute for Agriculture, Environment and Development, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Sandra Gomes
- Unidade de Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - António Martins
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Unidade de Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Ana Paulino
- Centro de Biotecnologia Agrícola e Agro-alimentar do Alentejo (CEBAL) / Instituto Politécnico de Beja (IP Beja), 7801-908 Beja, Portugal
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Maria F Duarte
- MED - Mediterranean Institute for Agriculture, Environment and Development, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
- Centro de Biotecnologia Agrícola e Agro-alimentar do Alentejo (CEBAL) / Instituto Politécnico de Beja (IP Beja), 7801-908 Beja, Portugal
| | - Nuno Alvarenga
- Geobiosciences, Geobiotechnologies and Geoengineering (GeoBioTec), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Unidade de Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
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Guilherme R, Reboredo F, Guerra M, Ressurreição S, Alvarenga N. Elemental Composition and Some Nutritional Parameters of Sweet Pepper from Organic and Conventional Agriculture. Plants (Basel) 2020; 9:E863. [PMID: 32650463 PMCID: PMC7412200 DOI: 10.3390/plants9070863] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 01/31/2023]
Abstract
The increasing demand of organic agriculture (OA) is based on the consumer's belief that organic agricultural products are healthier, tastier and more nutritious. The effect of OA and conventional agriculture (CA) methods on the elemental compositions of green and red sweet peppers were studied. The highest concentrations of Ca, Cu, K and P occur in peppers from OA in both states of ripeness, with emphasis on Ca and K contents. Furthermore, the principal component analysis (PCA), points out to a clear separation, regarding concentrations, between peppers from OA and CA. The average fruit weight is higher in OA, 141 g versus 112 g in CA. Regarding productivity, CA reaches a value of 30.1 t/ha, 7% higher than the value observed for OA, i.e., 28 t/ha. Peppers from CA, exhibited greater protein content than those which originated from OA, regardless of the ripening stage, but not more ashes. Regarding nutritional ratios, the ripening stage and the production mode, can be important for an adequate choice regarding a more balanced Ca/P ratio, and the studied variety contained high Ca values ranging between 1009 and 1930 mg.kg-1. The PCA analysis also revealed that Mn and Fe are inversely correlated, confirming the importance of the Mn/Fe ratio evaluation in nutritional studies.
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Affiliation(s)
- Rosa Guilherme
- CERNAS—Centro de Estudos de Recursos Naturais, Ambiente e Sociedade, Escola Superior Agrária de Coimbra, Instituto Politécnico de Coimbra, Bencanta, 3045-601 Coimbra, Portugal; (R.G.); (S.R.)
| | - Fernando Reboredo
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal;
| | - Mauro Guerra
- LIBPHYS, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal;
| | - Sandrine Ressurreição
- CERNAS—Centro de Estudos de Recursos Naturais, Ambiente e Sociedade, Escola Superior Agrária de Coimbra, Instituto Politécnico de Coimbra, Bencanta, 3045-601 Coimbra, Portugal; (R.G.); (S.R.)
| | - Nuno Alvarenga
- GeoBioTec, Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal;
- Instituto Nacional de Investigação Agrária e Veterinária, I.P., UTI—Unidade de Tecnologia e Inovação. Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
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Araújo-Rodrigues H, Tavaria FK, dos Santos MTP, Alvarenga N, Pintado MM. A review on microbiological and technological aspects of Serpa PDO cheese: An ovine raw milk cheese. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104561] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gabaglio S, Alvarenga N, Cantero-González G, Degen R, Ferro EA, Langjahr P, Chnaiderman J, Sotelo PH. A quantitative PCR assay for antiviral activity screening of medicinal plants against Herpes simplex 1. Nat Prod Res 2019; 35:2926-2930. [PMID: 31617761 DOI: 10.1080/14786419.2019.1675064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Herpes simplex virus one is one of the most prevalent pathogens worldwide. Strains resistant to current treatment have been reported, so it is necessary to search for new antiviral molecules. The most common method to quantify antiviral activity from natural products is the plaque reduction assay, a technically demanding method. In order to provide a simple alternative to this method, we have established a procedure for viral quantification by qPCR, and coupled with a cytotoxicity evaluation system using resazurin. In this way, it is possible to obtain both the estimation of cytotoxicity and the antiviral activity simultaneously, allowing rapid screening of plant extracts. Ten out of twenty-eight Paraguayan medicinal plant extracts evaluated using this method showed antiviral activity, and the EC50, CC50, and SI values were calculated for each extract. Our experience supports the employment of the described method for a rapid identification of plant extracts with antiviral activity.
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Affiliation(s)
- S Gabaglio
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - N Alvarenga
- Departamento de Fitoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - G Cantero-González
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - R Degen
- Departamento de Botánica, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - E A Ferro
- Departamento de Fitoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - P Langjahr
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - J Chnaiderman
- Programa de Virología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - P H Sotelo
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
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Gomes S, Belo AT, Alvarenga N, Dias J, Lage P, Pinheiro C, Pinto-Cruz C, Brás T, Duarte MF, Martins AP. Characterization of Cynara cardunculus L. flower from Alentejo as a coagulant agent for cheesemaking. Int Dairy J 2019. [DOI: 10.1016/j.idairyj.2018.09.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gonçalves Dos Santos MTP, Benito MJ, Córdoba MDG, Alvarenga N, Ruiz-Moyano Seco de Herrera S. Yeast community in traditional Portuguese Serpa cheese by culture-dependent and -independent DNA approaches. Int J Food Microbiol 2017; 262:63-70. [DOI: 10.1016/j.ijfoodmicro.2017.09.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/11/2017] [Accepted: 09/23/2017] [Indexed: 12/24/2022]
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Hellión-Ibarrola MC, Montalbetti Y, Heinichen OY, Kennedy ML, Campuzano MA, Alvarenga N, Ibarrola DA. Antidepressant-like effect of Kyllinga brevifolia rhizomes in male mice and chemical characterization of the components of the active ethyl acetate fraction. J Ethnopharmacol 2016; 194:1005-1011. [PMID: 27816658 DOI: 10.1016/j.jep.2016.10.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/22/2016] [Accepted: 10/31/2016] [Indexed: 06/06/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE Kyllinga brevifolia rhizomes (Cyperaceae) are used in Paraguayan traditional medicine as a refreshing beverage, and is claimed to own digestive, diuretic, sedative, tonic, antispasmodic and sudorific properties. We have previously reported that its hydro- ethanolic rhizome extract possess sedative, anxiolytic and anti-aggressive-like effects in mice. However, information on its potential for treatment of syndromes associated with mood disorders is scarce. AIM OF THE STUDY The purpose of this study is to characterize the putative antidepressant-like effects of the hydro-ethanolic extract (CEKb) and the ethyl acetate fraction (KbF-ethyl-ac) obtained from the rhizome of K. brevifolia (Rottb) on male mice exposed to forced swimming test. Also, chemical characterization of the components of the active ethyl acetate fraction was described. MATERIALS AND METHODS The antidepressant-like effects of CEKb and KbF-ethyl-ac were measured using the forced swimming test (FST) performance of male mice in single (acute), short-term and chronic modalities. Treatments in all modalities were made 1h before swimming test. The KbF-ethyl-ac was analyzed by LC-DAD-ESI-MS and LC-ESI-MS/MS in order to identify the active components. RESULTS A single doses (1.0, 10.0 and 100.0mg/kg, p.o; p<0.05) of CEKb, in male mice provoked a significant reduction of the immobility time. Such effect was also observed with oral short-term treatment (7 days) with doses of 10.0 and 100.0mg/kg/day (p<0.05) of CEKb. Moreover, in the treatments during 14 days with doses of 1.0 (p<0.05), 10.0 (p<0.05), and 100.0 (p<0.001) mg/kg, p.o, of CEKb, a statistically significant reduction of the immobility time were induced. Additionally, in a different set of experiments acute dose of 1.0 (p<0.05) and 10.0 (p<0.01) mg/kg, p.o, of KbF-ethyl-ac in male mice, a significant reduction of the immobility time were provoked. Likewise, short-term treatment (7 days) with 1.0, and 10.0mg/kg (p<0.05); and after 14 days of treatment with 0.01 (p<0.01) 0.1 (p<0.001), 1.0 (p<0.001), and 10.0 (p<0.05) mg/kg of KbF-ethyl-ac in male mice, a statistically significant reduction of the immobility time, were observed. Imipramine 32mg/kg/days, i.p, induced a statistically significant reduction of immobility time and was used as positive control to validate the method employed. Moreover, it was noted important differences in the onset of the antidepressant-like effect in the FST, depending on the modality of treatment with CEKb or KbF-ethyl-ac (acute, short-term or chronic). Both, efficacy and potency were higher when repeated administration of CEKb was used, and surprisingly the efficacy of 1.0mg/kg of KbF-ethyl-ac (14 days) was similar to imipramine. The main constituents of the KbF-ethyl-ac were identified as catechins and their dimers by LC-DAD-ESI-MS and LC-ESI-MS/MS, according to their UV and MS spectra, as compared with the literature data. These results indicate an important antidepressant-like profile of action for the CEKb and KbF-ethyl-ac; and meanwhile, this effect may partially reside on catechins and their dimers isolated from the KbF-ethyl-ac. CONCLUSION These findings indicate that K. brevifolia exerts antidepressant -like effects in mice and suggest its potential usefulness for the treatment of depression in humans and encourage us to pursue the isolation of the molecules associated to the effect observed in CEKb and KbF-ethyl-ac, and to determine the mechanism of antidepressant-like effect of Kyllinga brevifolia using adequate complementary test.
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Affiliation(s)
- M C Hellión-Ibarrola
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay.
| | - Y Montalbetti
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
| | - O Y Heinichen
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
| | - M L Kennedy
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
| | - M A Campuzano
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
| | - N Alvarenga
- Departamento de Fitoquímica, Facultad de Ciencias Químicas. Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
| | - D A Ibarrola
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus UNA, 1055, San Lorenzo, Paraguay
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Soares C, Fernando AL, Alvarenga N, Martins APL. Substitution of sodium chloride by potassium chloride in São João cheese of Pico Island. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13594-016-0293-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guerreiro O, Velez Z, Alvarenga N, Matos C, Duarte M. Molecular screening of ovine mastitis in different breeds. J Dairy Sci 2013; 96:752-60. [DOI: 10.3168/jds.2012-5519] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 10/23/2012] [Indexed: 11/19/2022]
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Ibarrola DA, Hellión-Ibarrola MC, Montalbetti Y, Heinichen O, Campuzano MA, Kennedy ML, Alvarenga N, Ferro EA, Dölz-Vargas JH, Momose Y. Antihypertensive effect of nuatigenin-3-O-β-chacotriose from Solanum sisymbriifolium Lam. (Solanaceae) (ñuatî pytâ) in experimentally hypertensive (ARH+DOCA) rats under chronic administration. Phytomedicine 2011; 18:634-640. [PMID: 21353509 DOI: 10.1016/j.phymed.2011.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 10/01/2010] [Accepted: 01/15/2011] [Indexed: 05/30/2023]
Abstract
The aim of the study is to assess the hypotensive properties of the hydro-ethanolic crude root extract (CRE), the n-butanol fraction (F(BtOH)) and nuatigenin-3-O-β-chacotriose, from Solanum sisymbriifolium Lam., in adrenal regeneration hypertension+deoxycorticosterone acetate (ARH+DOCA) rats, following a chronic administration. The roots of S. sisymbriifolium Lam. (Solanaceae) were extracted by reflux with ethanol-water 7:3 and the active extract was fractionated by bioassay-guided liquid-liquid separation. Nuatigenin-3-O-β-chacotriose (B(3-1)) was identified as the main hypotensive compound from the crude drug by spectroscopic methods. Immature Wistar rats of both sexes were submitted to both surgery and deoxycorticosterone acetate treatment to obtain adrenal regeneration hypertensive rats (ARH+DOCA). Different groups of experimentally induced hypertensive rats were randomly allotted and received during 16 weeks a daily oral administration of 1% saline solution (0.1 mL/100g body weigh), 100.0 mg/kg of CRE, 10.0, 30.0 and 50.0 mg/kg of F(BtOH), and 1.0 mg/kg of B(3-1), respectively. In addition, two groups of ARH+DOCA rats were randomly assigned to receive either B(3-1) (1.0 mg/kg/day) or 1% of saline solution (0.1 mL/100g body weight/day) for 7 weeks and then a cross over procedure was performed in order to complete the 16th-week treatment. After 16 weeks of oral administration of crude root extract (CRE), butanolic fraction (F(BtOH)) and nuatigenin-3-O-β-chacotriose (B(3-1)) a significant reduction of blood pressure value was induced in hypertensive animals (ARH+DOCA) in comparison to the control group receiving 1% saline solution, at the end of experiment. Administration of B(3-1) (1.0 mg/kg/day p.o.) to ARH+DOCA rats provoked a significant reduction of blood pressure, observed gradually from 5th week (p<0.05) to the end of the 16th week period of treatment (p<0.01). Moreover, in a cross over design it was observed that the reduction of blood pressure to normotensive condition is associated to B(3-1). The latest demonstrated that the blood pressure-lowering effect, in clearly hypertensive animals, is reversible and depend upon administration of nuatigenin-3-O-β-chacotriose (B(3-1)). Our results demonstrated that daily oral administration of CRE, F(BtOH) and nuatigenin-3-O-β-chacotriose from S. sisymbriifolium for a 16-week period exhibits an antihypertensive effect in experimentally hypertensive (ARH+DOCA) rats.
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Affiliation(s)
- D A Ibarrola
- Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Asunción, Paraguay.
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Hellión-Ibarrola MC, Ibarrola DA, Montalbetti Y, Kennedy ML, Heinichen O, Campuzano M, Ferro EA, Alvarenga N, Tortoriello J, De Lima TCM, Mora S. The antidepressant-like effects of Aloysia polystachya (Griseb.) Moldenke (Verbenaceae) in mice. Phytomedicine 2008; 15:478-483. [PMID: 18222666 DOI: 10.1016/j.phymed.2007.11.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2007] [Revised: 10/02/2007] [Accepted: 11/26/2007] [Indexed: 05/25/2023]
Abstract
The aim of the present work is to evaluate the putative antidepressant-like effects of a hydro-ethanolic extract (CEAp) and their fractions from the aerial parts of Aloysia polystachya (Griseb.) Moldenke (Verbenaceae) on the performance of male mice in the forced swimming test (FST). A single dose (100.0mg/kgp.o.) of CEAp, in male mice provoked a significant reduction of the immobility time (p<0.01). Such effect was also observed with short-term treatment (7 days) with single doses of 1.0 (p<0.01), 10.0 (p<0.05) and 100.0 (p<0.05)mg/kg/day of CEAp. Additionally, in a different set of experiments, repeated administration in a 24-h period (24, 18 and 1h before swimming test) with doses of 1.0 (p<0.05) and 10.0 (p<0.05)mg/kg p.o., of CEAp and 10.0mg/kgp.o., (p<0.05) of ethyl acetate fraction, provoked significant reduction of the immobility time of male mice in the FST. Moreover, it was noted important differences in the onset of the antidepressant-like effect in the FST, depending on the modality of treatment with CEAp (acute, short-term or repeated). Both, efficacy and potency were higher when repeated administration of CEAp was used, and surprisingly the dose of 10mg/kg (24, 18 and 1h before swimming test) was more effective than imipramine. In the same way, the short term administration (7 days) improved significantly efficacy and potency of the CEAp in comparison to a single dose treatment. The ethyl acetate fraction submitted to TLC demonstrated that main and minor components are phenolics and terpenes, respectively. In addition, this fraction gives a negative Shinoda's test for flavonoids. These results indicate an antidepressant-like profile of action for the hydro-ethanolic extract and the component(s) of the ethyl acetate fraction obtained from A. polystachya, which deserve further investigation.
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Affiliation(s)
- M C Hellión-Ibarrola
- Laboratory of Psychopharmacology, Department of Pharmacology, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus Universitario, P.O. Box 1055, San Lorenzo, Paraguay.
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Abstract
The extract of the rootbark of Hippocratea volubilis afforded a new triterpene caffeoyl ester, lupeol caffeate (1). Its structure was determined by means of spectroscopic evidence.
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Affiliation(s)
- N Alvarenga
- Facultad de Ciencias Químicas, Universidad Nacional de Asunción, Campus Universitario, PO BOX 1055, San Lorenzo, Paraguay.
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lbarrola DA, Hellión-lbarrola MC, Montalbetti Y, Heinichen O, Alvarenga N, Figueredo A, Ferro EA. Isolation of hypotensive compounds from Solanum sisymbriifolium Lam. J Ethnopharmacol 2000; 70:301-307. [PMID: 10837991 DOI: 10.1016/s0378-8741(00)00191-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The crude hydroalcoholic root extract (CRE) of Solanum sisymbriifolium Lam. has formerly been shown to have hypotensive activity both in normo-and hypertensive rats. Hypotensive activity-guided fractionation of the CRE was performed in anaesthetized normotensive rats, which led to the isolation of the active principles. The intravenous (i.v.) and intraperitoneal (i.p.) values of the CRE in mice were found to be, respectively, 343 and 451 mg/kg, and no lethal effect was caused by doses up to 5.0 g/kg when administered by oral route. Depression of locomotion, increase of breathing rate and piloerection was observed in a general behavior test with doses up to 200 mg/kg i.p., and 1000 mg/kg p.o., respectively. Increase in the gastrointestinal transit was found using 0.1 g/kg, whereas at doses of 0.5 and 1 g/kg, no significant activity was observed in comparison with the control mice. Hexanic and butanolic fractions induced a remarkable hypotension in anaesthetized normotensive rats in doses of 1, 5, 7.5 and 10 mg/kg i. v. Two compounds isolated from the butanolic fraction induced a significant decrease of the blood pressure, HR, amplitude of the ECG and breathing rate when injected in a dose of 1 mg/kg i.v; and both systofic and diastolic, blood pressures were affected in a proportional mode. The hypotensive effect of the two compounds were not influenced by pretreatment with atropine and propranolol; and the pressor response to noradrenaline was not affected by any of them which suggests that neither a direct muscarinic activity, beta-adrenoceptor activation nor decrease of sympathetic vascular tone (sympatholitic activity) are probably involved in the mechanism of hypotension. The present study shows that the CRE of S. sisymbriifolium contains at least two hypotensive compounds whose characterization is under way.
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Affiliation(s)
- D A lbarrola
- Pharmacology Department, Faculty of Chemical Sciences, National University of Asuncion, PO Box 1055, Asuncion, Paraguay
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Avilla J, Teixidò A, Velázquez C, Alvarenga N, Ferro E, Canela R. Insecticidal activity of Maytenus species (Celastraceae) nortriterpene quinone methides against codling moth, Cydia pomonella (L.) (Lepidoptera: tortricidae). J Agric Food Chem 2000; 48:88-92. [PMID: 10637057 DOI: 10.1021/jf990008w] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The insecticidal effects of nortriterpene quinone methides (pristimerin, tingenonee, and 20-alpha-hydroxytingenone) are reported for the first time. The natural products were isolated from Maytenus sp. (Celastraceae) and their effects tested on larvae of codling moth (Cydia pomonella, Lepidoptera: Tortricidae). The three metabolites produce the same effects on codling moth larvae that azadirachtin does, although at higher concentrations. 20-alpha-Hydroxytingenone was the most active compound, showing lethal, antifeedant, and insect growth regulation activities. Pristimerin showed also a high antifeedant activity together with its molt effect suppression. Tingenone showed the lowest activity. The differences in the activity of the three products are related to the structure of the E ring.
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Affiliation(s)
- J Avilla
- Area de Protecció de Conreus, Centre UdL-IRTA de R+D de Lleida, Departament de Producció Vegetal i Ciència Forestal, and Department de Química, Universitat de Lleida, Rovira Roure 177, 25198 Lleida, Spain.
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Valle CM, Pellegrino J, Alvarenga N. Rhythmic emergence of Schistosoma mansoni cercariae from Biomphalaria glabrata: influence of the temperature. Rev Inst Med Trop Sao Paulo 1973; 15:195-201. [PMID: 4755616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Pellegrino J, Valle C, Alvarenga N. [Emergency circadian rhythm of cercariae (Schistosoma mansoni-Biomphalaria glabrata)]. Rev Bras Biol 1971; 31:53-63. [PMID: 5564021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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