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Esti Rini Satiti
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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PERUBAHAN WARNA DAN LAPISAN FINISHING LIMA JENIS KAYU AKIBAT PENCUACAAN Krisdianto; Esti Rini Satiti; Achmad Supriadi
Jurnal Penelitian Hasil Hutan Vol. 36 No. 3 (2018): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2018.36.3.205-218

Abstract

The increase use of wood products for outdoor arises from warmth color and amenity properties of wood. However, wood is naturally degraded in term of color changes and finishing layer percentage after outdoor exposure. This paper presents wood color change and finishing layer durabillity after one year outdoor exposure. Five lesser known wood species from Riau were coated transparently using acrylic, enamel, polyurethane, ultran lasur ultra violet (UV), and ultran politur P-03 UV prior to outdoor exposure. Wood color differences were assessed according to CIELab system and coating film coverages were digitally analyzed by ImageJ software. The result showed that natural wood color turned into greyish pale after one year outdoor exposure. Color changes are relatively high in the first month then moderate and little changes every month there of. Finished layer wood samples were more resistant to weathering than unfinished surfaces. Finishing material of enamel (ET), lasur (LSR), and P03 (PP) experienced better coverage than acrylic and polyurethane finish. Finishing layer is gradually degraded, then re-finishing is necessary for optimal outdoor protection. Relationships between finishing coverage and color change showed medium correlation, where the greater finishing coverage, the greater the color changes.
EFEKTIVITAS PENGAWETAN DENGAN TEKNIK INFUS DAN BANDAGE PADA POHON BALAM TERHADAP SERANGAN RAYAP KAYU KERING Evi Sribudiani; Esti Rini Satiti; Wa Ode Muliastuty Arsyad; Sonia Somadona; Ratih Damayanti; Djarwanto; Rudianda Sulaeman; Sulaeman Yusuf; Yusup Amin; Didi Tarmadi; Dwi Ajias Pramasari; Syafrinal
Jurnal Penelitian Hasil Hutan Vol. 39 No. 2 (2021): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2021.39.2.65-73

Abstract

Currently, the availability of red meranti, kulim and mersawa wood is commonly used as raw material for “jalur” constructionin Kuansing Regency, Riau Province, are increasingly scarce, while the need is getting higher. Accordingly, it is necessary to choosealternative wood types that have similar strength and durable properties compatible with red meranti, kulim and mersawa wood tomeet specifications for the “jalur” construction. This paper studies the effectiveness of preservative treatment by infusion techniqueand bandage use against dry wood termite. Balam (Macaranga conifera Muell. Agr.) was chosen as alternative wood for makingthe path because currently this wood is abundant but not much used for making pathways. The results of field observations indicatedry-wood termites attacke the path stored on land, so it is necessary to preserve the path so that they are not attacked by wooddestroying organisms, particularly the dry-wood termites. Preservation treatments on standing trees using complex boron compoundsby infusion and bandage techniques were examined to increase the durability class of balam wood. Testing of dry-wood termiteattack was carried out according to the SNI 7207-2014 method. The data were processed using a completely randomized factorialdesign. The analysis results showed that the preservation by infusion and bandage techniques was significantly different in terms ofweight reduction and mortality of termites. Observation on the degree of attack visually on the control and infusion technique was40 (hold) lower than the bandage technique 70 (moderate). The highest mortality in infusion technique was 90.67% compared tocontrol 86.08%, and the bandage was 61.75%. Preservation using the infusion technique showed a higher boron content comparedwith the bandage technique.
KETAHANAN LIMA JENIS KAYU TERHADAP SERANGAN DELAPAN JENIS JAMUR PELAPUK Sihati Suprapti; Esti Rini Satiti; Lisna Efiyanti; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 40 No. 1 (2022): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Lesser-known wood originating from rain-forests is an alternative raw material for the national timber industry.Optimizing this wood group’s utilisation requires information on its resistance to the decaying fungus attack of eachwood species used. This research is studying the resistance of five wood species from West Kalimantan, and the rusttest was carried out on the metal embedded in heartwood and exposed to fungus using the Kolle-flask method. NaOH’swood-solubility analysis referred to ASTM D-1110-84’s Standard. Results revealed that Albizia sp. and Syzygiumsp. belonged to resistant woods (class II); Santiria sp. and Lithocarpus ewyckii belonged to moderately-resistant(class III); while Xanthophyllum excelsum belonged to not-resistant (class IV). The greatest weight loss occurredat sapwood of Xanthophyllum excelsum being exposed to Pycnoporus sanguineus. Average weight loss atheartwood (with class II) was lower than that at sapwood (class III). The greatest weight loss of woods embedded byscrews occurred at screwed Syzygium sp. then exposed to Polyporus sp. The average weight loss of screwed woods wasgreater than that of unscrewed woods. Meanwhile, the highest weight loss of screws occurred at Xanthophyllumexcelsum, then at Syzygium sp., exposed to Polyporus arcularius. The greatest weight of screw-rust powder wasachieved at Syzygium sp. exposed to Polyporus arcularius. Five fungi species exhibited moderate capability, whilethree species afforded low capability in decaying woods. The effect of decaying fungi on corroding screws was entirely low.
KETAHANAN LIMA JENIS KAYU TERHADAP SERANGAN DELAPAN JENIS JAMUR PELAPUK Sihati Suprapti; Esti Rini Satiti; Lisna Efiyant; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 39 No. 1 (2021): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2021.39.1.27-38

Abstract

Lesser-known wood originating from rain-forests is an alternative raw material for the national timber industry.Optimizing this wood group’s utilisation requires information on its resistance to the decaying fungus attack of eachwood species used. This research is studying the resistance of five wood species from West Kalimantan, and the rusttest was carried out on the metal embedded in heartwood and exposed to fungus using the Kolle-flask method. NaOH’swood-solubility analysis referred to ASTM D-1110-84’s Standard. Results revealed that Albizia sp. and Syzygiumsp. belonged to resistant woods (class II); Santiria sp. and Lithocarpus ewyckii belonged to moderately-resistant(class III); while Xanthophyllum excelsum belonged to not-resistant (class IV). The greatest weight loss occurredat sapwood of Xanthophyllum excelsum being exposed to Pycnoporus sanguineus. Average weight loss atheartwood (with class II) was lower than that at sapwood (class III). The greatest weight loss of woods embedded byscrews occurred at screwed Syzygium sp. then exposed to Polyporus sp. The average weight loss of screwed woods wasgreater than that of unscrewed woods. Meanwhile, the highest weight loss of screws occurred at Xanthophyllumexcelsum, then at Syzygium sp., exposed to Polyporus arcularius. The greatest weight of screw-rust powder wasachieved at Syzygium sp. exposed to Polyporus arcularius. Five fungi species exhibited moderate capability, whilethree species afforded low capability in decaying woods. The effect of decaying fungi on corroding screws was entirely low.
PENGGOLONGAN 23 JENIS ROTAN INDONESIA BERDASARKAN KERAPATAN DAN KUAT TARIK SEJAJAR SERAT Abdurachman; Jasni; Rohmah Pari; Esti Rini Satiti
Jurnal Penelitian Hasil Hutan Vol. 35 No. 1 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.1.43-52

Abstract

Rattan utilization is mainly determined by its physical and mechanical characteristics of density and tensile strength, where the higher the physical and mechanical properties, the better quality of the cane. In South East Asia region including Indonesia, two of eight genera, Calamus and Daemonorops are classified into high economic value, however the physical and mechanical characteristic of lesser known rattan species has not been studied intensively. This paper classifies 23 of lesser known rattan species into four classes based on its density and tensile strength parallel to grain. Density was measured based on gravimetric method and tensile strength parallel to grain was tested using Universal Testing Machine (UTM). Results show that in term of physical and mechanical properties, one species belongs to class I (very good), twelve species are classified into class II(good) and III (moderate). Ten rattan species are grouped into class IV (poor). Among 23 rattan species, highly recommended commercial rattan species are Calamus holttumii Furt., Calamus nematospadix Becc., and Korthalsia celebica Becc. While, Calamus sp., Korthalsia rostrata Blume and Daemonorops sabut Becc are less recommended.
KOMPOSISI KIMIA DAN ALAMI 20 KEAWETAN JENIS KAYU INDONESIA DENGAN PENGUJIAN DI BAWAH NAUNGAN Jasni; Gustan Pari; Esti Rini Satiti
Jurnal Penelitian Hasil Hutan Vol. 34 No. 4 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.4.323-333

Abstract

Wood utilization for various products such as building construction, furniture and handycrafts deserves through attention to the properties such as chemical composition and durability, as those are interrelated. This paper investigates chemical composition and natural durability of 20 wood species originated from several Indonesian regions. Celluloses content was analyzed according to Norman and Jenkin methods; lignins content was tested according to SNI 14-0492 1989; and extractives content was analysed based on SNI 14-1032-1989. Testing of wood durability was conducted under the shade at Cikampek, experiment station, West Java. Durability observation was conducted in one year afterwards by assessing the percentage damage of wood samples caused by wood-destroying organisms. Results show that jaha wood (Terminalia arborea K.et.V.) exhibited the highest cellulose content (61.35%), while the lowest (43.30%) at bambang lanang wood (Michelia champaca L.var.pubinervia). Mahang putih wood (Macaranga hypoleuca Muell. Arg.) contain the highest lignin (35.80%), conversely cempaka wood (Elmerrillia papuana Dandy) contain the lowest lignin (23.67%). The highest extractive content (7.87%) was found at bawang wood (Azadirachta exelsa (Jack) M. Jacobs), while the lowest content found at kandis wood (Pentaphalangium pachycarcum A.C. Smith.) with extractive content of 1.52%. Assessment on natural durability indicated that four species were categorized as durable (class II), six species as rather durable (class III), three species as not-durable (class IV), and seven species as perishable (class V).
Co-Authors Abdurachman Achmad Supriadi Didi Tarmadi Djarwanto Dwi Ajias Pramasari Evi Sribudiani Gustan Pari Jasni Krisdianto Lisna Efiyant Lisna Efiyanti Ratih Damayanti Rohmah Pari Rudianda Sulaeman Sihati SUPRAPTI Somadona, Sonia Sulaeman Yusuf Syafrinal Wa Ode Muliastuty Arsyad Yusup AMIN