22 documents found, page 1 of 3

Secondary metabolites produced by endophytic fungi: Novel antifungal activity o...

Made available in DSpace on 2022-04-30T22:28:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Fungi are present in the most diverse environments including the interior of plant tissues, living as endophytes without causing apparent damage. These endophytes are produ...

Multi-response optimization of alginate bleaching technology extracted from bro...

Made available in DSpace on 2021-06-25T11:04:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Alginate only finds industrial applicability after undergoing a bleaching process to improve its visual appearance. Box-Behnken Design was used to optimize bleaching parameters (time, oxygen flow and temperature) for sodium alginate (SA) ext...

Alkaloids from Spathelia excelsa: Their chemosystematic significance

Phytochemistry of trattinnickia burserifolia, t. Rhoifolia, and dacryodes hopki...

Phytochemistry of Trattinnickia burserifolia, T. rhoifolia, and Dacryodes hopki...

Trattinnickia burserifolia has yielded the known ursanes, α-amyrenone, α-amyrin, 3-epi-α-amyrin, 3α,16β- dihydroxyurs-12-ene, the oleananes β-amyrenone, β-amyrin, 3-epi-β-amyrin, 3α,16β-dihydroxyolean-12-ene, the tirucallane acids 3α-hydroxytirucall-8,24-dien-21-oic, 3α-hydroxytirucall-7,24- dien-21-oic and 3-oxotirucall-8,24-dien-21-oic, the dammaranes dammarenediol-II and 3α,20(S)-dihydroxydammar-24-ene. Besi...

Chemical constituents of the stems of Spathelia excelsa (Rutaceae) and activity...

Phytochemical investigation from, the stems of Spathelia excelia (Rutaceae) collected in Amazonas yielded deacetylspathelin (1), 7,8-dimethoxyflindersine (2), new glabretal-type triterpenoid 3β-angeloyl-21,24-epoxy-7α, 21α,23α,25-tetrahydroxy-4α,4β,8β,10βteti, amethyl-25-dimethyI-14,18-cycIo-5α,13α,14α, 17α-cholestane (3), in addition to the known steroids β-sitosterol and stigmasterol. Their structures were es...

Antifungal and Antiplasmodial Activity of Isolated Compounds from Handroanthus ...

Chemical constituents from the roots of Spathelia excelsa and their antiprotozo...

Phytochemical investigation from roots of Spathelia excelsa yielded the chromones 10(2,3-epoxy-3-methylbutanyl)spatheliachromen and 10(2,3-dihydroxy-3-methylbutanyl) methoxyspatheliacromen (5-methoxyspatheliabischromen); limonoid deacetylspathelin and protolimonoid C-21-epimers 3β-angeloyloxy-7α,24,25-trihydroxy-21,23-oxide-14,18-cycloapotirucall-21-hemiacetal; the alkaloids 7,8-dimethoxyflindersin, casimiroin ...

Resíduos madeireiros do alburno de pau-rainha (Brosimum rubescens): investigaçã...

Estudos fitoquímicos prévios com resíduos do cerne de pau-rainha (Brosimum rubescens), identificaram um alto teor de xantiletina, uma cumarina com potencial biológico. Dando prosseguimento aos estudos com serragens desta espécie, este estudo relata a densidade básica bem como o isolamento e identificação do triterpeno 3β-acetoxi-olean-12-eno-28-al e do β- sitosterol nos extratos hexânico e metanólico do alburno...

Estudo em raiz e ráquis foliar de spathelia excelsa: fitoquímica e atividade fr...