Výsledky vyhledávání - "Roberta Eliane Santos Froes"

Mineral content in honey and pollen from native stingless bees Tetragonisca angustula (Latreille, 1811) in the Iron Quadrangle, Brazil

Autor: Yasmine Antonini Itabaiana, Fernanda Ataide de Oliveira, Adriana Trópia de Abreu, Roberta Eliane Santos Froes, Nathália de Oliveira Nascimento, Hermínio Arias Nalini Júnior

Publikováno v: Journal of Apicultural Research. 59:378-389

The objective of this work was to determine the mineral content of honey and pollen of the Brazilian native Jatai bee (Tetragonisca angustula) sampled at nine sites in the so-called Iron Quadrangle...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7e562860070e767f1a0974b3ac3b504
https://doi.org/10.1080/00218839.2020.1730578

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Preparation and characterization of a new reference material for the inorganic analysis of corn flour

Autor: Liz Oliveira dos Santos, Edson G. Moreira, F. A. Santana, Daniel C. Lima, Marcos A. Bezerra, Valfredo Azevedo Lemos, Edwin Palacio, Lindomar A. Portugal, Ana Maria Pinto dos Santos, Fernando M. de Oliveira, Rui Jesus Lorenzo Garcia, Rennan Geovanny Oliveira Araujo, Daniela S. Anunciação, Roberta Eliane Santos Froes, Geovani C. Brandao

Publikováno v: Accreditation and Quality Assurance. 22:37-43

Corn is one of the most consumed cereals in world and the second most cultivated in Brazil. Cereal flour has a flavor well accepted by the Brazilian population. This work describes the preparation and characterization of a new corn flour reference ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce6dc788ae336128d9e88a80c888e1e5
https://doi.org/10.1007/s00769-016-1242-8

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Extraction of pectin from agroindustrial residue with an ecofriendly solvent: use of FTIR and chemometrics to differentiate pectins according to degree of methyl esterification

Autor: Rodrigo Chaves Amaro, Liliane Catone Soares, Emylle Emediato Santos, Roberta Eliane Santos Froes, Constanza Catarina Cid Bustamante, Milton Hércules Andrade Guerra

Publikováno v: Food Hydrocolloids. 107:105921

Pectins are members of the more complex class of high molecular weight heteropolysaccharides. They consist mainly of (1 → 4)-linked α- d -galacturonic acid residues, which may be partially methyl esterified. The quantity of methyl esterified group

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66048f74f6047169093731cbd39e3fca
https://doi.org/10.1016/j.foodhyd.2020.105921

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Determination of Inorganic Elements in Teas Using Inductively Coupled Plasma Optical Emission Spectrometry and Classification with Exploratory Analysis

Autor: Clésia C. Nascentes, Mark A. Beinner, Roberta Eliane Santos Froes, Waldomiro Borges Neto, José Bento Borba da Silva

Publikováno v: Food Analytical Methods. 7:540-546

Multivariate optimization was employed to obtain the best conditions of the inductively coupled optical emission spectrometer (ICP OES) (nebulization gas flow rate of 0.47 L min−1 and applied power of 1.36 kW) for the determination of Al, Ba, Ca, C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94542d36c158ddb0238503818d1616e0
https://doi.org/10.1007/s12161-013-9651-3

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Multivariate optimization by exploratory analysis applied to the determination of microelements in fruit juice by inductively coupled plasma optical emission spectrometry

Autor: Nilton O. C. e Silva, Rita L.P. Naveira, José Bento Borba da Silva, Waldomiro Borges Neto, Clésia C. Nascentes, Roberta Eliane Santos Froes

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 64:619-622

A method for the direct determination (without sample pre-digestion) of microelements in fruit juice by inductively coupled plasma optical emission spectrometry has been developed. The method has been optimized by a 23 factorial design, which evaluat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ce94a6938f08fcceb8ed42e7c120fef
https://doi.org/10.1016/j.sab.2009.06.006

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Comparison between ordinary least squares regression and weighted least squares regression in the calibration of metals present in human milk determined by ICP-OES

Autor: Rita L.P. Naveira, Denise B. C. Mendes, Roberta Eliane Santos Froes, Waldomiro Borges Neto, José Bento Borba da Silva, Nilton O. C. e Silva, Rosilene S. Nascimento

Publikováno v: Talanta. 80(3)

In this study we compared the use of ordinary least squares and weighted least squares in the calibration of the method for analyzing essential and toxic metals present in human milk by ICP-OES, in order to avoid systematic errors in the measurements

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4b165addce1bf868b4ba391844749f3
https://pubmed.ncbi.nlm.nih.gov/20006059

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Quantificação e avaliação ambiental da contaminação por metais e arsênio em sedimentos da bacia do Rio Doce - MG

Autor: Camila Vidal Alves Santolin

Publikováno v: Repositório Institucional da UFMG
Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG

A bacia hidrográfica do Rio Doce (BHRD) situa-se na região sudeste do Brasil, e várias atividades econômicas são desenvolvidas em toda sua extensão, como mineração, agropecuária e indústria alimentícia. A atividade de mineração engloba a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::4f42d8d3e58720fb433cadb784342184

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