Ethephon, an ethylene releaser, is used to stimulate latex production in Hevea brasiliensis. Ethylene induces many functions in latex cells including the production of reactive oxygen species (ROS). The accumulation of ROS is responsible for the coagulation of rubber particles in latex cells, resulting in the partial or complete stoppage of latex flow. This study set out to assess biochemical a...

The secondary laticifer in the secondary phloem is differentiated from the vascular cambia of the rubber tree (Hevea brasiliensis Muell. Arg.). The number of secondary laticifers is closely related to the rubber yield potential of Hevea. Pharmacological data show that jasmonic acid and its precursor linolenic acid are effective in inducing secondary laticifer differentiation in epicormic shoots...

The wood processing industry produces a significant amount of waste. Biomass valorization through pyrolysis has the potential to increase added value wastes. Pyrolysis is an important thermochemical process that can produce solid, liquid, and gas products. This paper aims review wastes from Indonesia, including teak (Tectona grandis), meranti (Shorea sp.), sengon (Paraserianthes falcataria (L) ...

The free amino acid profile of cocoa nibs as a result of hydrolysis by proteolytic enzyme from wastewater of latex Hevea brasiliensis processing on cocoa nibs were monitored for 8 hours. Pepsin enzyme is using as control. There are similarities profile of free amino acids produced by the enzyme from wastewater and the pepsin enzyme. If using proteolytic enzyme from wastewater, the acidic free a...

BACKGROUND Composition of Latex Latex products are manufactured from a milky fluid derived from the rubber tree, Hevea brasiliensis. Several chemicals are added to this fluid during the processing and manufacture of commercial latex. Some proteins in latex can cause a range of mild to severe allergic reactions. Currently available methods of measurement do not provide easy or consistent identif...

Despite its economic importance and recent genome release, the need for molecular tools for Hevea brasiliensis is high. In the frame of a disease resistance study, EST sequences were retrieved from public database or generated by sequencing SSH libraries. Sequences were trimmed and microsatellite motifs searched using an ad hoc bioinformatic pipeline, and pairs of primers for the amplification ...

This study presents the development of natural rubber-Ca/P blends, as promising candidates for biomedical purposes. The specific objective was the incorporation of Ca/P into a natural rubber polymeric matrix. Ca/P crystalline phases were synthesized by the sol-gel method and the polymeric matrices were produced using natural rubber extracted from latex of the Hevea brasiliensis. The shape and s...