Distribution of the non-isoprene components in the four Hevea brasiliensis latex centrifugation fractions

Liengprayoon Siriluck, Vaysse Laurent, Jantarasunthorn Saowalak, Wadeesirisak Kanthida, Chaiyut Jatuporn, Srisomboon Surattiya, Musigamart Natedao, Rattanaporn Kittipong, Char Christine, Bonfils Frédéric, Bottier Céline. 2021. Distribution of the non-isoprene components in the four Hevea brasiliensis latex centrifugation fractions. Journal of Rubber Research, 24 : 759-769.

Quartile : Q4, Sujet : POLYMER SCIENCE

Résumé : This work is part of a larger project aiming at elucidating the mechanisms by which the biochemical components naturally occurring in Hevea brasiliensis latex influence the structuration of natural rubber (NR). To achieve this overall objective, our strategy consists of measuring the physical properties of NR samples made of reconstructed lattices which were obtained by mixing different proportions of C-serum and bottom fraction (lutoids) to rubber fraction made of small and large particles. This work represents the first step of the above-mentioned project where we carried out a systematic study to identify and locate the main biochemical components of latex that might drive NR structuration. Fresh latex from RRIM600 and PB235 clones was fractionated by centrifugation into 4 fractions: large rubber particles, small rubber particles, C-serum and bottom fraction (lutoids + Frey-Wyssling particles). The fractions were further analyzed to provide a comprehensive description of their biochemical composition (lipids, proteins, minerals) in comparison with the original whole latex. The results gathered in this work are essential for further study of the quantitative influence of each component on NR structuration and properties.

Mots-clés Agrovoc : propriété physicochimique, Hevea brasiliensis, composition, centrifugation, composé biochimique, caoutchouc

Mots-clés libres : Biochemical components, Latex centrifugation fractions, Hevea brasiliensis latex, Non-rubber, Non-isoprenes

Classification Agris : U50 - Sciences physiques et chimie

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Agences de financement hors UE : Agence Nationale de la Recherche, Thailand International Cooperation Agency, Agropolis Fondation

Auteurs et affiliations

• Liengprayoon Siriluck, Kasetsart University (THA) - auteur correspondant
• Vaysse Laurent, CIRAD-PERSYST-UPR BioWooEB (THA)
• Jantarasunthorn Saowalak, Kasetsart University (THA)
• Wadeesirisak Kanthida, Kasetsart University (THA)
• Chaiyut Jatuporn, Kasetsart University (THA)
• Srisomboon Surattiya, Kasetsart University (THA)
• Musigamart Natedao, Kasetsart University (THA)
• Rattanaporn Kittipong, Kasetsart University (THA)
• Char Christine, CIRAD-PERSYST-UPR BioWooEB (FRA)
• Bonfils Frédéric, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0001-7016-4770
• Bottier Céline, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0002-5318-4275 - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/599550/)

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