Bruguiera parviflora

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Common products:
- Timber (heartwood and sapwood) used for structural beams, poles, and light‑duty furniture.
- Fuelwood and charcoal; the wood’s low moisture and high calorific value (~19 MJ kg⁻¹) make it suitable for direct combustion or carbonization.
- Pulp for paper; wood chips are processed by the kraft method to produce paper‑grade pulp.
- Tannin extracts from bark and leaves; hydrolyzable gallotannins (≈20–30 % of dry weight) are used in leather tanning.

Industrial and craft applications:
- Particleboard and fiberboard; the wood’s moderate density and dimensional stability allow production of low‑load boards for furniture and interior panels.
- Veneer and plywood; thin slices are used for interior finishing and decorative surfacing.
- Handicraft items (e.g., small carvings, tool handles) that exploit the wood’s fine grain.
- Light‑construction elements such as scaffolding poles and temporary shelters.

Colorants and tanning:
- Natural brown dyes; aqueous extracts of bark provide brown coloration on protein fibers (silk, wool).
- Leather tanning; hydrolyzable tannins from the bark impart astringency and durability to tanned hides.

Wood and fiber:
- Structural timber with a basic density of 0.70–0.80 g cm⁻³ and bending strength of ≈70 MPa, suitable for joists, flooring sub‑structures, and interior paneling.
- Wood chips for kraft pulp; the species’ lignin (~30 %) and cellulose (~45 %) ratios support a pulp yield of ~45 % on a dry‑basis.

Properties relevant to use:
- High extractive content contributes to natural decay resistance.
- Low equilibrium moisture content (≈10–12 % at air‑dry) improves fuel performance.
- Tannin class (hydrolyzable gallotannins) and concentration support leather‑tanning applications.
- Calorific value and moderate strength enable use as construction timber and charcoal feedstock.

Standards and regulation:
- FAO guidelines for sustainable mangrove timber (FAO, 2016) provide harvesting and management recommendations.
- ISO 13061 governs charcoal quality (moisture, calorific value).
- ISO 2470 specifies pulp kappa‑number determination for paper manufacturing.
- National timber grading standards (e.g., Myanmar Timber Grading Manual, 2018) classify sawn timber for trade.
- Analytical protocols for tannin quantification (e.g., Folin–Ciocalteu assay) are accepted under national chemical‑testing regulations.

Sustainability and sourcing:
- Regional mangrove assessments indicate local population declines due to habitat conversion and over‑harvest for fuelwood.
- Sustainable harvesting cycles of 10–15 years and community‑based management are promoted to reduce pressure.
- Limited FSC certification exists for mangrove timber in selected jurisdictions.
- Restoration programs incorporate artificial regeneration of B. parviflora to replenish stocks.

Scientific and model‑organism use:
- Employed in physiological and transcriptomic studies of mangrove stress tolerance; RNA‑Seq datasets are deposited in NCBI SRA.
- Seed banks and germplasm collections maintained by mangrove research institutes facilitate comparative genomics within Rhizophoraceae.
- Used to develop standardized seedling establishment protocols for mangrove reforestation trials.

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