Jurnal Penelitian Hasil Hutan

IDENTIFIKASI GERONGGANG (Cratoxylon arborescens (Vahl.) Blume ) TERHADAP KRASIKARPA (Acacia crassicarpa A. Cunn.)

Samsul Hadi — 2024-04-19

Raw materials for making paper concern the government, especially when dealing with peat environments. One of the paper-making materials that lives in peat environments is Cratoxylon arborescens (Vahl.) Blume, so the research aims to identify Cratoxylon arborescens (Vahl.) Blume against the risk of being mixed with Acacia crassicarpa A. Cunn. So, it can be used to identify paper raw materials. The method used in this research uses principle component regression (PCR). The materials used are Cratoxylon arborescens (Vahl.) Blume wood sticks, Cratoxylon arborescens (Vahl.) Blume and methanol p.a. The equipment used is spectrophotometry. The results showed two wavelength areas, 212–236 nm and 265–302 nm, which can potentially obtain optimal RMSEC, RMSEP, and RMSECV values for identifying the peak areas of the two species. This research concludes that the 212 – 236 nm area can potentially identify Cratoxylon arborescens (Vahl.) Blume with RMSEC: 4.98; RMSEP: 2.91 and RMSECV: 8.13.

PENGARUH KOMBINASI KAYU SENGON (Falcataria moluccana) DAN BAMBU PETUNG (Dendrocalamus asper) TERHADAP SIFAT FISIKA PAPAN LAMINASI

Febriana Tri Wulandari — 2024-04-19

Sengon wood can be strengthened by mixing with bamboo in making laminated boards. The aim is to determine whether the combination of sengon wood and petung bamboo produces an increase in strength class and to determine the effect of pressure and weight on the physical properties of laminated boards made from sengon wood and petung bamboo. The test results of the characteristics of physical and mechanical properties of the combination of sengon wood and petung bamboo resulted in an increase in strength class to strength class III according to JAS SE-7 2003 and SNI 01-6240-2000 standards. The felt pressure of laminated boards has a significant effect on moisture content and thickness development, but density and thickness shrinkage have no significant effect on the felt pressure of laminated boards. Adhesive weight significantly affected the physical properties of the board; adhesive weight and felt pressure together had no significant effect on the physical properties of the board.

PEMANFAATAN ASAP CAIR LIMBAH GERGAJIAN KAYU PINUS SEBAGAI BIOPESTISIDA DALAM MENGHAMBAT SERANGAN HAMA PENGGEREK BUAH KOPI (Hypothenemus hampei Ferr.)

Anne Hadiyane — 2024-04-19

Sawmill waste is a waste product that needs to be put to use. Applying biorefinery principles through pyrolysis technology, which produces liquid smoke, is one of the innovative efforts to utilize sawmill waste. Chemical compounds contained in the liquid smoke have the potential to act as biopesticides. Therefore, this study aimed to test the ability of liquid smoke from pine sawmill waste to fight PBKo (Hypothenemus hampei) pests on coffee plants. Pyrolysis produced the liquid smoke at 400–450 °C for 4–7 hours. The observed parameters were the physicochemical characteristics and efficacy of liquid smoke biopesticides at concentrations of 1.5%, 2%, and 2.5% against PBKo pests through pest attack tests, toxicity tests, and repellency tests. The results showed a total phenol value of 7248.01 mg GAE/100g. The results of the GC-MS analysis of the liquid smoke, which has the potential to be an insecticidal compound toxic to coffee fruit borer pests, are acetic acid, phenol, alcohol, furan, cycloalkane, cyclohexane, alkene, eugenol, and guaiacyl acetone. Based on the stydy’s results, liquid smoke from sawn pine wood waste at a concentration of 2.5% has the potential to be a natural biopesticide for inhibiting the growth of PBKo pests on coffee plants.

ISOLASI ASAM 3β-HIDROKSI-5-GLUTINEN-28-OAT DARI KULIT BATANG ASAM KANDIS (Garcinia cymosa) DAN AKTIVITAS SITOTOKSIKNYA TERHADAP SEL KANKER PAYUDARA MCF-7

Darwati Darwati — 2024-04-19

The Garcinia genus comes from the Clusiaceae family which grows a lot in the tropical forests of Indonesia. This genus is reported to contain many secondary metabolites, one of which is triterpenoid which is useful as a cytotoxic, anti-oxidant, anti-inflammatory, anti-HIV, and antibacterial. One species of Garcinia whose triterpenoid content is still not widely known is G. cymosa. This study aims to obtain triterpenoid compounds in G. cymosa stem bark that are active against MCF-7 breast cancer cells. G. cymosa stem bark powder (0.9 kg) was macerated in stages with n-hexane and ethyl acetate as solvents. The ethyl acetate extract showed positive results for containing triterpenoid compounds after being tested with the Liebermann-Burchard reagent, so the ethyl acetate extract (25 g) was purified and purified by various chromatographic methods. The chemical structure of pure isolate (10 mg) was determined using various spectroscopic techniques IR, MS, 1H-NMR, 13C-NMR, 1H-1HCOSY, HMQC, and HMBC and compared with the literature so that it was designated as triterpenoid acid 3β-hydroxy-5- gluten-28-oat and required its cytotoxic activity using the Presto Blue method against MCF-7 breast cancer cells with an IC50 value of 94.78 µg/mL. This IC50 value belongs to the active category so this compound has potential as an anticancer drug.

SIFAT ARANG EMPAT JENIS KAYU CEPAT TUMBUH DI PROVINSI RIAU SEBAGAI BAHAN BAKU BIOENERGI (BIO BRIKET)

Rina Novia Yanti — 2024-04-19

The availability of fossil energy will increasingly become scarce. For this reason, alternatives are being sought to use biomass as a renewable energy source. The fast-growing types of wood in Riau Province, namely ketapang (Terminalia catappa L), mahang (Macaranga spp), simpur (Dillenia indica.L), dan pulai (Alstonia spp) have not been utilized optimally. Fast growing wood is used as raw material for bioenergy, namely biobriquettes. The proximate analysis carried out was to calculate the water content (%), ash content (%), volatile matter content (%), and calorific value (cal/g. The aim of this research was to analyze the characteristics of the proximate test results of four types of fast-growing wood in Riau Province. The results of the research show that the average ash content of the charcoal is 0.36% according to SNI 01-6235 of 2000, the maximum is 8%. The volatile matter content of charcoal material is 14,5%, making bio briquettes the average volatile matter content value is 12,95% already meets SNI, a maximum of 15%. The average calorific value of raw materials is 4,069 cal/g and after it becomes a product the calorific value becomes 6,368 cal/g, which is set at a minimum of 5000 cal/g. In general, four types of wood grow quickly in the province Riau is recommended as a bio-energy raw material because it meets SNI 01-6235 of 2000.