Highlights Miscanthus sinensis , an invasive plant species as potential source of commercial dyes. Microwave extraction can yield dye extracts from M . sinensis . Optimum condition is at 15 s −150 mL solvent - 540 W microwave power setting. Extraction using 1:1 ethanol-water mixture had highest yield and color-fastness. Mordant application improves binding of flavonoid-based M . sinensis dyes on fabric.
https://philjournalsci.dost.gov.ph/publication/regular-issues/past-issues/99-vol-149-no3a-october-2020/1256-morphological-anatomical-and-physical-properties-of-iron-bamboo-guadua-angustifolia-kunt-grown-in-the-philippines
The fiber morphology and extractive content of Aquilaria cumingiana (Decne.) Ridl. wood collected in Davao Oriental, Philippines were determined to gather pioneering information about the properties of A. cumingiana for better characterization and classification. Wood samples were classified according to color with the aid of a Nix Mini 1 Color Sensor and labeled as A, B, C, and D. The result of the study showed an increasing trend of color lightness percentage from samples A (32.74%) to D (74.96%). Morphologically, both samples C and D (1.03 mm) showed the longest fiber, sample A showed the largest fiber (35.41 μm) and lumen diameter (27.77 μm), and sample C showed the thickest cell wall (4.71 μm). On the other hand, the highest Runkel ratio, slenderness ratio, and flexibility ratio were shown in samples B (0.49), C (33.00), and A (78.13), respectively. The amount of extractives obtained in the study decreases from samples A to D regardless of the solvents used. Statistically, the color lightness, morphological properties, and extractive content were significant across sample classifications. Among solvents used, the extractive content showed a significant result. The color lightness and extractive content showed a negative relationship, which signifies that the color lightness may be used to evaluate the amount and quality of extractives in A. cumingiana wood. Based on the morphological properties, A. cumingiana fibers are found favorable in pulp and paper production. The classification and characterization of A. cumingiana wood properties along the infected portions of a tree and chemical profiling of the extracts would be relevant information to consider.
Traditional wooden houses are an integral part of the identity of the majestic Ifugao rice terrace landscape as the architectural heritage of the indigenous Ifugao people. These traditional houses function as family residences and serve as rice granaries, refuge, and special housing for unmarried people in the community. In as much as the materials used for the construction of the traditional house are sourced from the surrounding wood lots and communal forests, the traditional house serves as an important record of the history and value of indigenous and endemic trees found in the central Cordillera mountain range. This study identified 206 traditional houses in Kiangan town, and from these houses, transverse sections of house parts from the dismantled and standing houses were examined. Thirty-two species of mostly indigenous and endemic trees were used to construct traditional houses across four periods: (1) before 1931, (2) 1931–1960, (3) 1961–1990 and (4) 1991–2020. The Ifugaos consistently utilized the preferred wood species such as Amugawon (Vitex parviflora), Udyo (Pterocarpus indicus), and Itangan (Weinmannia luzoniensis) for traditional house construction. Wood species such as Yakal (Shorea astylosa), Gmelina (Gmelina arborea), and Mahogany (Swietenia macrophylla) were also identified from recently constructed houses. The disappearance of certain premium hardwoods and a shift to commonly available but less quality wood is noticeable, as the former were over-utilized but never mass-propagated. Finally, a conservation planning workshop on traditional houses was organized among local homeowners, barangay, and municipal officials, agreeing on the following points: (a) creation of an ordinance to protect and conserve existing traditional houses; (b) development of information, education, and communication materials on the importance of traditional houses; and (c) enhanced collaboration and cooperation among stakeholders.
Abstract. Daracan VC, Mendoza RC, Torres AM, Jara AA, Manalo RD, Batallones CHR, Razal RA. 2020. Comparison of Agathis philippinensis resin tapping and collection practices in three selected sites in the Philippines. Biodiversitas 21: 5595-5604. This study documented and compared almaciga (Agathis philippinensis Warb.) resin tapping and collection practices in three sites namely Mt. Hamiguitan, Governor Generoso, Davao Oriental; Mt. Mantalingahan, Brooke’s Point, southern Palawan; and Puerto Princesa Subterranean River National Park, Marufinas, central Palawan. Resin tappers, mostly male belonging to a local organization, were interviewed, and tapping sites were visited. Tapping and collecting A. philippinensis resin is one of the supplemental income sources of the respondents from the three sites. Market influences, and how tappers learned the trade could partly explain the similarities and differences in tapping practices. Discrepancies in selecting trees to be tapped, tools used, type of incisions made on the bark, and how resin was harvested were noted. Differences in resin appearance across sites were observed, and the existence of uncollected and wasted resins clinging to trees or sprawling at its base was found in all sites. Removing dirt from the portion of the stem to be tapped, covering the bark incision with plastic for protection, and contriving handmade resin baskets from plant parts available in the site were some practices found to be worth replicating. On the other hand, there were damaged or dying trees due to the intensity of tapping, the lack of tapping skills, and limited attention given to the health of trees. There is a need for strengthening tappers’ organizations for increased bargaining power to secure better resin price and policy support to prioritize indigenous peoples in tapping into their ancestral domain. Tappers can benefit from cross-visits and other learning opportunities for sharing lessons and experiences to improve tapping practices for better resin quality and higher prices.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.