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Extraction and characterization of a natural rubber from Euphorbia characias latex.
MedLine Citation:
PMID:  22605550     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A natural rubber was identified and characterized for the first time in the latex of the perennial Mediterranean shrub Euphorbia characias. Four different methods, i.e., acetone, acetic acid, trichloroacetic acid, and Triton® X-100, followed by successive treatments with cyclohexane/ethanol, were employed to extract the natural rubber. The rubber content was shown to be 14% (w/v) of the E. characias latex, a low content compared with that of Hevea brasiliensis (30-35%) but a similar content to other rubber producing plants. E. characias rubber showed a molecular weight of 93,000 with a M(w) /M(n) of 2.9. (1) H NMR, (13) C NMR, and FTIR analysis revealed the characteristic of the cis-1,4-polyisoprene typical of natural rubber. These results provided novel insight into latex components and will ultimately benefit the broader understanding of E. characias latex composition. © 2012 Wiley Periodicals, Inc. Biopolymers 97: 589-594, 2012.
Authors:
Delia Spanò; Francesca Pintus; Claudia Mascia; Mariano Andrea Scorciapino; Mariano Casu; Giovanni Floris; Rosaria Medda
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biopolymers     Volume:  97     ISSN:  0006-3525     ISO Abbreviation:  Biopolymers     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-05-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372525     Medline TA:  Biopolymers     Country:  United States    
Other Details:
Languages:  eng     Pagination:  589-94     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Affiliation:
Department of Sciences of Life and Environment, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato (CA), Italy.
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