Results 31 to 40 of about 1,759 (195)
Hypoglycemic Effect of a Combined Andrographis paniculata and Caesalpinia sappan Extract in Streptozocin-Induced Diabetic Rats. [PDF]
Adv Pharmacol Pharm Sci, 2020 Introduction. Researchers usually use herbal combinations to explore and develop traditional medicine to obtain additional benefits in the treatment of diseases, including diabetes. This study aims to evaluate the hypoglycemic effect of the combination of Andrographis paniculata (Burm.
Wediasari F +5 more
europepmc +2 more sources
On the Hierarchical Use of Colourants in a 15th Century Book of Hours
Heritage, 2021 An illuminated Book of Hours (in use in Chalon-sur-Saône) currently owned by the Museo Civico di Arte Antica and displayed in the prestigious Palazzo Madama in Torino (Italy) was investigated by means of optical microscopy, fibre optic reflectance ...
Angelo Agostino +5 more
doaj +1 more source
Vibrational Spectroscopy, 2002 Abstract In this work, the vibrational spectra (FT-Raman and infrared spectra) of brazilin, the major component of brazilwood Caesalpinia echinata (from Bahia, Brazil), and brazilein, the oxidised pigment, are investigated. The FT-Raman spectra of the compounds show different patterns in the carbonyl stretching region, where brazilein presents a ...
Luiz Fernando Cappa de Oliveira +3 more
openalex +3 more sources
Variations in sugars and cyclitols during development and maturation of seeds of brazilwood (Caesalpinia echinata Lam., Leguminosae) [PDF]
Brazilian Journal of Plant Physiology, 2006 Seeds of Caesalpinia echinata are tolerant to desiccation, keeping their viability up to 0.08 g H2O g-1 DM. When stored under laboratory conditions they lose their viability within one month, while under low temperatures germination ability is maintained during two years of storage.
Igor Ferrari Borges +3 more
openalex +4 more sources
Pau-brasil and string instrument bows telecouple nature, art, and heritage
Ecology and Society, 2022 The wood of the pau-brasil tree (Paubrasilia echinata Lam., formerly Caesalpinia echinata Lam.) is used worldwide as raw material for the construction of high-quality bows for string instruments.
Silke Lichtenberg +4 more
doaj +1 more source
Managing the Slave Trade: the Accounts of the Angola Contract between 1597-1600
Culture & History Digital Journal, 2023 This article analyses the management of the 1594-1600 Angola Contract signed by the Portuguese merchants João Nunes Correia, Manuel Fernandes Anjo, and André Lopes Pinto, which regulated the extraction of slaves to America and the taxation system ...
Manuel F. Fernández Chaves
doaj +1 more source
Mapping Materials and Dyes on Historic Tapestries Using Hyperspectral Imaging
Heritage, 2023 Hyperspectral imaging has emerged as a promising analytical method of artwork due to its potential in combining non-invasive analytical capabilities and imaging allowing the survey of the entire (or of a large area of the) surface of an artwork, which is
Constantina Vlachou-Mogire +3 more
doaj +1 more source
Color and Brightness of Cochineal and Brazilwood Red Natural Pigments
Nutrition and Food Science International JournalThis paper focuses on describe the effect of the physical phase of linseed oil over the color and brightness of natural lakes manufactured with cochineal and Brazilwood. The lakes were made from scratch following existing recipes for the powder pigments and lately mixed with two different types of linseed oil: thickened boiled and cold-pressed raw.
Elsa de la Calleja
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American Journal of Botany, Volume 110, Issue 11, November 2023., 2023 Abstract Premise Paubrasilia echinata (common names, pau brasil, brazilwood) is the national tree of Brazil and an endangered species endemic to the Brazilian Atlantic Forest. Over its wide distribution of 2000 km, its leaflets morphology exhibits extensive plasticity.
Mathew Rees +4 more
wiley +1 more source
Journal of Raman Spectroscopy, Volume 54, Issue 11, Page 1303-1313, November 2023., 2023 This paper explores the use of portable Raman instruments to characterise natural dye lakes in paint mixtures. Two dispersive portable Raman instruments, one using a fibre‐optic probe and a 1064‐nm excitation laser and the other using the subtracted‐shifted excitation (SSE) post‐processing algorithm, have been tested in their feasibility to ...
Silvia Bottura‐Scardina +3 more
wiley +1 more source