Results 81 to 90 of about 175 (127)
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Improved methods for extraction and quantification of resin and rubber from guayule
Industrial Crops and Products, 2009Abstract Guayule, a shrub native to the Chihuahuan desert, is a natural source of high quality, hypoallergenic rubber. Unlike rubber trees that produce rubber in laticifers, the rubber in guayule is produced in parenchyma cells of the bark tissue of stems and roots.
Katrina Cornish
exaly +2 more sources
Cutting height effects on guayule latex, rubber, and resin yields
Industrial Crops and Products, 2010Abstract Guayule (Parthenium argentatum Gray) is a perennial shrub native to the Chihuahuan Desert. While guayule traditionally has been cultivated for rubber, more recently it is being cultivated for its hypoallergenic latex. Other uses including termite resistant wood products and as an energy source have also been identified.
D T Ray, T A Coffelt
exaly +2 more sources
Biomass, rubber, and resin yield potentials of new guayule germplasm
Bioresource Technology, 1991Abstract Substantial improvement in rubber yield must be made in order to establish guayule as a reliable source of natural rubber. Selection among heterogeneous apomictic polyploids was used to improve rubber yield in a relatively short period of time.
exaly +2 more sources
Degradative Effects of Guayule Resin on Natural Rubber
Rubber Chemistry and Technology, 1981Abstract This study indicates that the degradative effects of guayule resin on natural rubber are due to the presence of unsaturated fatty acids in the resin. Since linoleic acid is, by far, the most abundant unsaturated fatty acid in guayule resin, it appears that linoleic acid is primarily responsible for the degradative effects of guayule ...
R. W. Keller +2 more
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Microbial transformation of some triterpenoids of Guayule resin by Chaetomium sp.
Phytochemistry Letters, 2023Microbial biotransformation of argentatin A (1), isoargentatin A (2) and argentatin C (3), the triterpenoid constituents of guayule (Parthenium argentatum) resin was conducted with Chaetomium sp. PA001, an endophytic fungus of the same plant. The experiments yielded six new products (4–9) formed by: (i) nucleophilic oxygenation of the 3-ketone moiety ...
Marielle C. Inacio +6 more
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Effect of resin components on the degradation of guayule rubber
Journal of Applied Polymer Science, 1985AbstractAll natural rubbers are likely to contain some long chain fatty acids or their esters. The individual effect of the four C18 fatty acids (stearic, oleic, linoleic, and linolenic acid) present in the guayule resin on the degradation of guayule rubber has been investigated concurrently by stress–relaxation of radiation cured rubber networks and ...
A. K. Bhowmick, S. Rampalli, D. McIntyre
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Gravimetric Analysis for Determining the Resin and Rubber Content of Guayule
Rubber Chemistry and Technology, 1983Abstract The method presented provides a fast and sufficiently accurate method for determining the resin and rubber contents of guayule. Although it does not provide definitive or “absolute” values that presumably can be obtained with sophisticated instrumentation, it is well suited for agronomic developmental studies at the field station level.
L. T. Black +3 more
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New application of guayule resin in controlled release formulations
Industrial Crops and Products, 2013Abstract Guayule resin is a by-product of the rubber extraction process from Parthenium argentatum Gray shrubs. When guayule is cultivated to a large extent, it is possible to achieve a production of 200–2000 kg/ha of resin in addition to the commercial natural rubber production that is sought for use as hypoallergenic latex.
M.J. Pascual-Villalobos, M.D. López
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Rubber and Resin Yield Performance of New Guayule Selections
Agronomy Journal, 1992AbstractGuayule (Parthenium argentatum Gray) is a promising alternative to the rubber tree (Hevea brasiliensis Muell. Arg.) for domestic production of natural rubber in semiarid regions. Guayule is not yet a crop and its commercialization will depend on the development of high rubber‐yielding cultivars. The objectives of this study were to determine if
A. Estilai +5 more
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Rubber and resin contents of native guayule germplasm of Mexico
Industrial Crops and Products, 1997Abstract Plant germplasm obtained from the origin of the genetic material can be useful for varietal improvement. For guayule (Parthenium argentatum Gray.) germplasm, 343 accessions were collected from 53 locations in 20 municipalities within five provinces (Coahuila, Durango, Nuevo Leon, San Luis Potosi and Zacatecas) in Mexico.
S. Kuruvadi +2 more
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