Constituintes químicos de Capraria biflora (Scrophulariaceae) e atividade larvicida de seu óleo essencial

Autor: Luciana Gregório da S. Souza, Macia Cleane S. Almeida, Francisco José Q. Monte, Gilvandete Maria P. Santiago, Raimundo Braz-Filho, Telma Leda G. Lemos, Clerton L. Gomes, Ronaldo F. do Nascimento

Publikováno v: Química Nova, Vol 35, Iss 11, Pp 2258-2262 (2012)

Analysis of essential oil from fresh leaves of Capraria biflora allowed identification of fourteen essential oil constituents among which thirteen are sesquiterpene compounds, and α-humulene (43.0%) the major constituent. The essential oil was teste

Externí odkaz: https://doaj.org/article/ebaa76babb0a484d993b75437a8bb554

Allergenic Fragrances Analysis in Brazilian Perfumes by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Detector (HS-SPME-GC-MS)

Autor: Pablo Gordiano Alexandre Barbosa, Clerton L. Gomes, Ronaldo Ferreira do Nascimento, Ari Clecius Alves de Lima, Rouse S. Costa, Diego de Quadros Melo

Publikováno v: Journal of the Brazilian Chemical Society v.28 n.11 2017
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 28, Issue: 11, Pages: 2136-2145, Published: NOV 2017

Perfumes are products mainly consisting of ethyl alcohol, water and fragrance. These fragrances are responsible for characterizing the pleasant and unique odor of each perfume. Among the fragrances, we highlight a group of fragrances which can cause

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b94118a66ffc25f07ea7c0ff7fe7e96
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017001102136

Multivariate Analysis of Perfumes by Ultraviolet Spectrophotometry

Autor: Ronaldo Ferreira do Nascimento, Adonay R. Loiola, Manuela C. L. Cândido, Ari Clecius Alves de Lima, Clerton L. Gomes, Abel Brasil Ramos da Silva

Publikováno v: Journal of the Brazilian Chemical Society v.26 n.8 2015
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 26, Issue: 8, Pages: 1730-1736, Published: AUG 2015

An efficient, fast and cost-effective method for detecting adulteration in perfumes by UV spectroscopy and multivariate analysis is proposed. Classification of perfumes, either as original or fake, was accomplished with the spectroscopic data using c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de13dcce9285bc18a5bf692171c9f20f
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015000801730

Flavonoids and terpenoids from Croton muscicarpa (Euphorbiaceae)

Autor: Daniela Santos Carneiro Torres, Milena B. Barreto, João Vito B. de Freitas, Edilberto R. Silveira, Clerton L. Gomes, Francisco das Chagas L. Pinto, Nilce V. Gramosa

Publikováno v: Química Nova, Volume: 36, Issue: 5, Pages: 675-679, Published: 2013
Química Nova, Vol 36, Iss 5, Pp 675-679 (2013)
Química Nova v.36 n.5 2013
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

A new sesquiterpene and twelve known compounds comprising eight flavonoids and four terpenoids, were isolated from the leaves, stems, roots and exudate of Croton muscicarpa Müll. Arg.. Their structures were identified as the terpenoids 6α-methoxy-c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d79e219121224b3300ae5f464b85576f
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000500011&lng=en&tlng=en

Chemometric Characterization of Alembic and Industrial Sugar Cane Spirits from Cape Verde and Ceará, Brazil

Autor: Diego de Quadros Melo, Maria Nataniela da Silva, Gisele S. Lopes, Ari Clecius Alves de Lima, Ronaldo Ferreira do Nascimento, Carla Bastos Vidal, Clerton L. Gomes, Regina F. R. Pereira, Allan Nilson de Sousa Dantas

Publikováno v: International Journal of Analytical Chemistry
International Journal of Analytical Chemistry, Vol 2012 (2012)

Sugar cane spirits are some of the most popular alcoholic beverages consumed in Cape Verde. The sugar cane spirit industry in Cape Verde is based mainly on archaic practices that operate without supervision and without efficient control of the produc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d0a2f8febfe9421a37d9540fb1882a7