Results 31 to 40 of about 74,294 (347)

Stingless bees as collectors of resin from Bertholletia excelsa Bonpland (Lecythidaceae)

open access: yesEntomological Communications, 2023
Stingless bees build their nests using, in general, clay, wax and resins; in addition, these bees also use resins for defense against natural enemies and as an antimicrobial agent.
Iris A. Cruz, Paulo C. S. Barroso
doaj   +1 more source

Chemical preservation of plants and insects in natural resins [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 1998
The morphological preservation of fossils in amber is remarkable, but their chemical composition is largely unknown.
Stankiewicz, BA   +4 more
openaire   +2 more sources

Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]

open access: yes, 2016
A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal   +50 more
core   +1 more source

Characterization of Environmentally Sustainable Resole Phenolic Resins Synthesized with Plant-based Bioresources

open access: yesBioResources, 2015
“Green” resole phenolic resins for laminating applications were synthesized, and their properties and thermal stability were determined. The plant-based cardanol and condensed tannin were used as the partial substitutes of up to 40% of the phenol in the ...
Francisco Cardona   +1 more
doaj   +1 more source

The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]

open access: yes, 2016
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham   +53 more
core   +2 more sources

Pharmacognosy, Phytochemical, and Pharmacology of Wijaya Kusuma (Epiphyllum oxypetalum (DC.) Haw.) – An Update Review

open access: yesBorneo Journal of Pharmacy, 2022
In Indonesia, Epiphyllum oxypetalum (DC.) Haw. is known as Wijaya Kusuma. The plant is grown for home decorating and used widely as medicine in some areas.
Chandra Adam Lesmana   +2 more
doaj   +1 more source

Detection some active Compounds in the Leaves and Stems of Local Coriander Plant - Coriandrum sativum L.

open access: yesTikrit Journal of Pure Science, 2018
This research aimed at studying some of the chemical compounds of the leaves and stems of a local plant "Coriander". Inclusive  chemical Detection for the most important active chemical compounds that exist in this plant were carried out.
Raghad Z. Sulaiman, Yaseen M. Ahmed
doaj   +1 more source

Organic bioactive medicinal ingredients with antibacterial, anti-inflammatory and antioxidant properties [PDF]

open access: yesMedicamentul Veterinar, 2023
The formulation of cosmeceutical products containing plant and animal compunds is the current concern of many researchers in the pharmaceutical field and it is the subject of many specialized studies.
Cristina Dumitrache   +3 more
doaj  

Field Simulation of Global Change: Transplanting Northern Bog Mesocosms Southward [PDF]

open access: yes, 2010
A large proportion of northern peatlands consists of Sphagnum-dominated ombrotrophic bogs. In these bogs, peat mosses (Sphagnum) and vascular plants occur in an apparent stable equilibrium, thereby sustaining the carbon sink function of the bog ecosystem.
Berendse, F.   +3 more
core   +2 more sources

Rubber Seed Oil-Based UV-Curable Polyurethane Acrylate Resins for Digital Light Processing (DLP) 3D Printing

open access: yesMolecules, 2021
Novel UV-curable polyurethane acrylate (PUA) resins were developed from rubber seed oil (RSO). Firstly, hydroxylated rubber seed oil (HRSO) was prepared via an alcoholysis reaction of RSO with glycerol, and then HRSO was reacted with isophorone ...
Yun Hu   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy