Propolis and Beeswax in Cosmetics: A Market Survey and Literature Review on Their Relationship and Role in Allergic Contact Dermatitis. [PDF]
Contact DermatitisPropolis is rarely used in conventional cosmetics within the EU, and such products are therefore unlikely to be significant sources of exposure for patients with positive patch test reactions to propolis. There is no evidence that small amounts of propolis in white beeswax (cera alba) in cosmetics can trigger allergic contact dermatitis in individuals ...
de Groot AC, Ipenburg NA, Rustemeyer T.
europepmc +2 more sources
Studying in vivo dynamics of xylem-transported 11CO2 using positron emission tomography [PDF]
, 2020 Respired CO2 in woody tissues can build up in the xylem and dissolve in the sap solution to be transported through the plant. From the sap, a fraction of the CO2 can either be radially diffuse to the atmosphere or be assimilated in chloroplasts present ...
Courtyn, Jan +4 more
core +1 more source
Generation of a Golden Leaf Triploid Poplar by Repressing the Expression of GLK Genes
Forestry Research, 2021 Poplar trees are excellent varieties widely used for gardening and greening. However, their single color and floating fluffy seeds are major disadvantages.
Yidi Li +5 more
doaj +1 more source
International Journal of Forestry Research, 2010 The effects of soil and topographic variables on forest site index were determined for two mesophytic tree species, northern red oak (Quercus rubra L.) and yellow-poplar (Liriodendron tulipifera L.) in the Southern Appalachian Mountains of North Carolina.
W. Henry McNab
doaj +1 more source
Energies, 2018 In order to produce bioethanol from yellow poplar sawdust without detoxification, deacetylation (mild alkali treatment) was performed with aqueous ammonia solution.
Seong Ju Kim +2 more
doaj +1 more source
Pollination by flies, bees, and beetles of Nuphar ozarkana and N. advena (Nymphaeaceae) [PDF]
, 2000 Nuphar comprises 13 species of aquatic perennials distributed in the temperate Northern Hemisphere. The European species N. lutea and N. pumila in Norway, the Netherlands, and Germany are pollinated by bees and flies, including apparent Nuphar ...
Gardine, Angela A. +3 more
core +1 more source
Daily variations of water use with vapor pressure deficit in a plantation of I214 poplars. [PDF]
, 2009 Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the mean tree water use
Etienne Muller +5 more
core +4 more sources
Investigation of the chemocatalytic and biocatalytic valorization of a range of different lignin preparations: The importance of β-O-4 content [PDF]
, 2016 A set of seven different lignin preparations was generated from a range of organosolv (acidic, alkaline, ammonia-treated, and dioxane-based), ionic liquid, autohydrolysis, and Kraft pretreatments of lignocelluloses.
Bouxin, Florent +10 more
core +4 more sources
THE ROLE OF YELLOW STICKING TRAPS FOR ESTIMATION OF LEAF HOPPER Empoasca decedens POALI ON DIFFERENT STRAINS OF POPLAR TREES IN MOSUL [PDF]
Mesopotamia Journal of Agriculture, 2005 The study was conducted in the plantation of poplar research station of horticulture & forestry in Rashidia – Mosul in 2002 , it was noticed that the presence of leaf hopper on poplar trees from the beginning of May up to the end of December .The results
M. Mohammed, W. Alkhafa
doaj +1 more source
Comparative performance of pxts versus creosote in an awpa e7 field stake test
Maderas: Ciencia y Tecnología, 2021 A need exists to develop new organic, environmentally benign wood preservatives for industrial applications to replace the older creosote and pentachlorophenol systems.
Darrel D. Nicholas +2 more
doaj +1 more source