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Mesostructure characterization by asymmetrical flow field-flow fractionation of natural rubber samples from different Hevea brasiliensis genotypes

Liengprayoon Siriluck, Chelbi Karim, Dubascoux Stéphane, Char Christine, Vaysse Laurent, Dubreucq Eric, Sainte Beuve Jérôme, Sriroth Klanarong, Bonfils Frédéric. 2017. Mesostructure characterization by asymmetrical flow field-flow fractionation of natural rubber samples from different Hevea brasiliensis genotypes. Industrial Crops and Products, 109 : pp. 936-943.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : AGRONOMY / Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING

Abstract : As a biopolymer produced by a tree, natural rubber (NR) entails a major drawback compared to its synthetic counterparts, namely the non-consistency or variability of its properties. One of the most important variability factors is the Hevea brasiliensis genotype producing the latex. The mesostructure (macromolecular structure + aggregates) of NR samples from four Hevea brasiliensis genotypes (RRIM600, GT1, RRIC110 and PB217) was characterized by asymmetrical flow field-flow fractionation coupled to a multi-angle light scattering (AF4-MALS) and refractive index detector (DRI). We first describe the method used to characterize NR samples by AF4-MALS from a qualitative and quantitative point of view. We focused on determining the structural parameters of the microaggregate fraction, leading to the determination of their average molar masses, size and shape. Secondly, we showed that one of the main structural differences in NR samples lies in the density of this microaggregate population. The samples from genotype PB217 contained heavier and more compact microaggregates than the other genotypes studied. (Résumé d'auteur)

Mots-clés Agrovoc : Hevea brasiliensis

Mots-clés libres : Natural rubber, Asymmetrical flow field-flow fractionation, Microaggregate, Gel, Hevea genotype

Classification Agris : F30 - Plant genetics and breeding

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Liengprayoon Siriluck, Kasetsart University (THA)
  • Chelbi Karim, CIRAD-PERSYST-UMR IATE (FRA)
  • Dubascoux Stéphane, Montpellier SupAgro (FRA)
  • Char Christine, CIRAD-PERSYST-UMR IATE (FRA)
  • Vaysse Laurent, CIRAD-PERSYST-UMR IATE (THA)
  • Dubreucq Eric, Montpellier SupAgro (FRA)
  • Sainte Beuve Jérôme, CIRAD-PERSYST-UMR IATE (FRA)
  • Sriroth Klanarong, Kasetsart University (THA)
  • Bonfils Frédéric, CIRAD-PERSYST-UMR IATE (FRA) ORCID: 0000-0001-7016-4770

Source : Cirad-Agritrop (https://agritrop.cirad.fr/586209/)

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