Citation
Yeang H. Y., . Destabilisation of Hevea latex by bark sap: involvement of high density rubber particles in latex. pp. 115-126. ISSN 0127-7065
Abstract
Bark sap and latex B-serum of Hevea brasiliensis were evaluated for their effectiveness in destabilising suspensions of rubber particles whole latex and reconstituted latex. The sensitivities of rubber particles from different fractions of centrifuged latex to destabilisation by bark sap were compared. While B-serum was observed to be more potent in inducing flocculation and creaming of a dilute suspension of rubber particles in water bark sap was far more effective than B-serum in destabilising and coagulating whole latex. A small proportion of the rubber particles in latex was especially sensitive to rapid destabilisation by bark sap. These were the relatively smaller and higher density rubber particles from Zones 2 and 3 of centrifuged latex. It is speculated that destabilised high density rubber particles act as sites of initiation of latex vessel plugs which exert control on latex outflow when the tree is tapped.
Download File
Full text available from:
Official URL: http://vitaldoc.lgm.gov.my:8060/vital/access/servi...
|
Abstract
Bark sap and latex B-serum of Hevea brasiliensis were evaluated for their effectiveness in destabilising suspensions of rubber particles whole latex and reconstituted latex. The sensitivities of rubber particles from different fractions of centrifuged latex to destabilisation by bark sap were compared. While B-serum was observed to be more potent in inducing flocculation and creaming of a dilute suspension of rubber particles in water bark sap was far more effective than B-serum in destabilising and coagulating whole latex. A small proportion of the rubber particles in latex was especially sensitive to rapid destabilisation by bark sap. These were the relatively smaller and higher density rubber particles from Zones 2 and 3 of centrifuged latex. It is speculated that destabilised high density rubber particles act as sites of initiation of latex vessel plugs which exert control on latex outflow when the tree is tapped.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Hevea brasiliensis |
| AGROVOC Term: | Hevea rubber |
| AGROVOC Term: | Latex |
| AGROVOC Term: | Bark |
| AGROVOC Term: | Sap |
| AGROVOC Term: | Centrifugation |
| AGROVOC Term: | Fractionation |
| AGROVOC Term: | Particle size |
| AGROVOC Term: | Fluid flow |
| AGROVOC Term: | Tapping |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 28 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/23551 |
Actions (login required)
 |
View Item |
