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Jasni
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PENGARUH PRAPERLAKUAN BAHAN BAKU TERHADAP KUALITAS PAPAN LAMINA ROTAN Adi Santoso; Gustan Pari; Krisdianto; Karnita Yuniarti; Jasni; Heru Wibisono
Jurnal Penelitian Hasil Hutan Vol. 40 No. 2 (2022): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2022.40.2.105–114

Abstract

Rattan has the potential to be developed into composite products with gluing technology into laminated rattan. However, as araw material, rattan has a weakness, namely that it contains chemical components that inhibit the adhesive bond with the chemicalmolecules of rattan. In an effort to overcome this, a technique for making composite rattan was carried out in order to obtain dataon the effect of pretreatment on rattan as a raw material. Rattan as a raw material is first dried by microwave, hydrothermalevaporation and conventional methods in order to reduce the levels of adhesive chemical components contained in rattan. This paperpresents the results of research on the technology of making laminated rattan from the Batang (Calamus zolingerii) large diameter(>20 mm) with mangium tannin adhesive. The results showed that the pre-treatment of rattan as a raw material in the form ofdrying by means of oven, steam, frying, hydrothermal, and microwave, each produced a different effect on the chemical componentscontained and the degree of crystallinity. The best rattan laminate board was obtained from rattan which was pretreated using a 1kW microwave oven (input) with a maximum energy strength of 50%.
KEAWETAN ALAMI 57 JENIS KAYU INDONESIA DENGAN PENGUJIAN DI BAWAH NAUNGAN Jasni
Jurnal Penelitian Hasil Hutan Vol. 34 No. 3 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.3.179-188

Abstract

Natural durability of 57 wood species originated from several regions in Indonesia was investigated outdoor under coverage. Initially, wood specimens were prepared from each species with dimension of 20 cm (length), 10 cm (width) and 2.5 cm (thickness). Specimens were placed on top of the bricks to avoid direct contact with soil, arranged randomly, and covered with crated-plastic sheets which served as protecting shades. Such experiment was conducted in research forest, Cikampek, West Java. Observation was conducted one year afterwards included evaluating the percentage of deteriorated wood specimens due to wood-destroying organisms. Results showed that after a year, 57 wood species could be categorized into five classes. Further scrutiny on each class revealed that four wood species belonged to class I (very durable); 16 wood species were class II (durable), 15 wood species class III (fairly durable), three wood species class IV (non-durable), and 19 wood species were classified as class V (perishable).
PEMANFAATAN EKSTRAK KAYU MERBAU UNTUK PEREKAT PRODUK LAMINASI BAMBU Adi Santoso; I.M. Sulastiningsih; Gustan Pari; Jasni
Jurnal Penelitian Hasil Hutan Vol. 34 No. 2 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.2.89-100

Abstract

The report describes the useof adhesive made frommerbau wood extract (Intsia Spp.) which is allowed tocopolymerize with resorcinol, formaldehyde under alkaline conditions, and tapioca as an extender. The adhesive was used to manufacture three-ply composite board consisting of a back and core layers made from sengon (Falcataria mollucana), and jabon (Anthocephalus chinensis), while the face layer was made either one of three bamboo species, namely, andong (Gigantochloa pseudoarundinacea), mayan (Gigantochloa robusta Kurz.), and bitung (Dendrocalamusasper Schult. F.). Result shows that physical-mechanical properties of the composite board with using adhesive by formula (% of weightratio) Merbau extract :Resorcinol 50%: Formaldehyde 37%:Extender=100 : 10 : 10 : 5) were similar with to those of products made of synthetic phenolic adhesive and classified as an exterior quality type with E or 0 F**** typesof low formaldehyde emission.
KOMPOSISI KIMIA DAN KETAHANAN 12 JENIS ROTAN DARI PAPUA TERHADAP BUBUK KAYU KERING DAN RAYAP TANAH Jasni; Gustan Pari; Titi Kalima
Jurnal Penelitian Hasil Hutan Vol. 34 No. 1 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.1.33-43

Abstract

Rattan is spiny climbing palms, which is mostly utilized for furniture. This paper determines the chemical composition of 12 rattan species from Papua and its resistance against powderpost beetle (Dinoderus minutus Fabr.) and subterranean termite (Coptotermes curvignathus Holmgren). Chemical composition tested includes cellulose, lignin and starch contents. Cellulose content was determined by Norman and Jenkins method, while lignin content was determined based on the Indonesian National Standards (SNI 14-0492-1989 and SII-70-1979). Rattan resistance against powder post beetles and subterranean termites according to Indonesian Standard SNI 01-7207-2006. Results show that the highest cellulose content was found in somi-1 rattan (Calamus pachypus WJ Baker & al) of 52.82%, while the lowest cellulose content was found in longipina rattan (Calamus zebrianus Becc) which constitutes 42.29% cellulose content. The highest lignin content was recorded in endow rattan (Calamus zebrianus Becc) which was 33.37%, and the lowest was recorded in itoko rattan (Calamus vitiensis Warburg) which was about 21.00%. Two rattans studied were classified into class I against powder post beetle, and three of them were classified as class II. Four rattan species falls into class III and one species classified as class IV, and the other two species were classified as class V against powder post beetle. Based on the test against subterranean termites, three rattan species were classified as class I, five species as class II, two species as class III, one species as class IV, and one species as class V. Rattan species which was classified into III, IV, and V classes need to be preserved to enhance its service life.
SIFAT ANATOMI, SIFAT FISIS DAN MEKANIS PADA KAYU KEMENYAN TOBA (Styrax sumatrana) DAN KEMENYAN BULU (Styrax paralleloneurus) Gunawan Pasaribu; Jasni; Ratih Damayanti; Santiyo Wibowo
Jurnal Penelitian Hasil Hutan Vol. 31 No. 2 (2013): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2013.31.2.161-169

Abstract

Gum benzoin (Styrax sp.) is a tree producing resins that have bigh economic value originated from North Sumatra Province. The unproductive trees (less resin production) are harvested by the community for firewood. This paper presents characteristics difference of two types of Kemenyan toba (Styrax sumatrana) and Kemenyan bulu (Styrax paralleloncurus) in anatomical, phisical and mechanical properties in order to use properly. The results showed that kemenyan toba wood and kemenyan bulu are unique anatomical properties. The quality of fiber as a raw material for pulp is categorized into first quality. Based on their spesific gravity, the wood were clasified as medium beavy, with stabile shrinkage. Both wood are suitable for non structural construction, furniture and bandicraft.
PENGGOLONGAN PERFORMANS 25 JENIS ROTAN INDONESIA BERDASARKAN KERAPATAN, KEKAKUAN, DAN KEKUATAN Abdurachman; Jasni
Jurnal Penelitian Hasil Hutan Vol. 33 No. 4 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.4.273-282

Abstract

Rattan signifies as one of non-wood forest products; and its role in Indonesia is essential as it provides approximately 80% of the world's rattan demand. Rattan finds numerous beneficial uses, such as ropes, weaving-items, mats, baskets, household utensils, handicraft goods, and furniture products. The utilization of rattans for such products are determined by among others their density (D), strength (MOR), and stiffness (MOE), whereby the greater those three values, then expectedly the better the rattan qualities as well as their corresponding rattan products. In South East Asia, including Indonesia, there are 2 outof 8 rattan genera that afford high economic values, namely Calamus and Daemonorops. In relevant, scrutiny on 25 Indonesia's rattan species has been conducted, and their possible classification based on density, MOR and MOE was examined. Those 25 species were dominated by Calamus spp. and Daemonorops spp. Scrutiny based on the entirely tested rattan properties (D, MOR and MOE) revealed that as many 16% of 25 rattan species could be grouped as class I(superior); 36% as class II (good), 32% as classIII (moderate) and 16% as class IV (poor). Further scrutiny also based on thoseoverall three rattan properties indicated that four species as the most prospectively utilized (from the highest rank) were Korthalsia rigida Bl, Calamus inops Becc.ex Heyne, and Calamus koordesianus Becc; meanwhile those as the least prospective similarly comprised Korthalsia zeppelii Burret, Plectocomiopsis geminiflora (Griff) Becc, and Calamus ornatus Blume dan Daemonorops malanocaetes BL.
KLASIFIKASI MUTU 11 JENIS ROTAN INDONESIA BERDASARKAN KERAPATAN DAN KETEGUHAN LENTUR Rohmah Pari; Abdurachman; Jasni; Titi Kalima
Jurnal Penelitian Hasil Hutan Vol. 36 No. 1 (2018): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2018.36.1.13-22

Abstract

Rattan is a lignocellulose plant that can be used for furmiture and other handicraft product. Quality and characteristics of the rattan species should be identified to comply with their utilization purposes. This research aimed to study the quality classification of 11 less used rattan species from Kalimantan, Sulawesi and Sumatera based on their physical properties (density) and mechanical properties (bending strength). The testing method applied was modified from ASTM D143-94. This modification was carried out because the formula used in ASTM is for square cross-section while rattan has cylindrical cross-section. The study of 11 species of rattan, based on the physical and mechanical properties, showed that three species of rattan from Kalimantan were classified in to class II – I (Calamus lobbianus), class III (Daemonorops fissa) and class IV – III (C. marginatus), while the three species of rattan from Sulawesi were grouped in to class I (C. robinsonianus), class II (C. scleracanthus) and class II – III (C. mindorensis). The remaining five species of rattan from Sumatera were categorized in class I – II (C. rugosus), class II – I (C. spectatissimus), class I – III (D. longipes), class II – III (D. verticillaris), and class III (D. sepal). These results could be used as a consideration for utilization of high quality rattan for furniture material that hold heavy load while low quality rattan may be used for holding light load only.
KOMPOSISI KIMIA DAN KEAWETAN ALAMI DELAPAN JENIS KAYU DI BAWAH NAUNGAN Heru S. Wibisono; Jasni; Wa Ode Muliastuty Arsyad
Jurnal Penelitian Hasil Hutan Vol. 36 No. 1 (2018): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2018.36.1.59-65

Abstract

Timber utilization is mostly affected by wood chemical composition and its natural durability in certain condition. This paper studies chemical composition and under shade natural durability of eight wood species originated from Banten and West Java Provinces. Chemical composition was tested based on Norman and Jenkins’ methods, SNI 140492-1989 and SNI 14-1032-1989 and the wood natural durability test was conducted outdoor under the shade. Result shows that in general wood chemical composition of eight wood species tested is approximately in average of those in broad leaf trees. Among the wood samples studied, the highest holocellulose content was recorded from baros wood (Michelia champaca L.) which was about 75.64% and the lowest holocellulose content was recorded from pasang taritih wood (Lithocarpus elegans Blume Hatus ex Supadmo) which was about 60.19%. In term of lignin content, the highest percentage was recorded from pasang taritih wood, which was about 35.14% and it is comparable with those of ki hiyang (Albizia procera (Roxb.) Benth.) wood, which was about 25.35%. The greatest extractive content was recorded from tarisi wood (Albizia lebbeck (L) Benth), which was about 7.9%, while extractive content nemely tangkalang wood (Litsea roxburghii Hassk) falled into 1.54%. Under the shade durability test showed pasang taritih wood performed second class durability (class II), while the other seven wood species of tarisi, ki hiyang, hanja, cerei, tangkalang, baros, and kapinango were extremly non durable (class V).
KETAHANAN ALAMI JENIS-JENIS BAMBU YANG TUMBUH DI INDONESIA TERHADAP RAYAP TANAH (Coptotermes curvignathus Holmgren) Jasni; Ratih Damayanti; Rohmah Pari
Jurnal Penelitian Hasil Hutan Vol. 35 No. 4 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.4.289-301

Abstract

Natural durability of each bamboo species is different, thus information on natural durability of bamboo species is important for its utilization. This paper investigates the natural resistance of bamboo species against subterranean termites as a basis for species classification. Twenty species of bamboo from various regions in Indonesia (West Java, Banten, the Central of Java, Lampung and Bogor Botanical Garden) were tested against subterranean termites Coptotermes curvignathus Holmgren according to SNI 7204-2014. Parameters observed were weight loss percentage of bamboo, survival rate of the termites and degree of attack (subjectively). Results showed that based on the weight loss, three bamboo species could be grouped into resistance class I, five species into class II, three species into class III, seven species as class IV and two species as class V. Based on the survival rate of the termites, one of the bamboo species was classified in class I, four species in class II, one species in class III, 11 species in class IV, and three species in class V. Furthermore, according to the degree of attack, four species were heavily damaged, while 16 species showed moderately damage. From the result, it can be concluded that one species of bamboo namely apus (Gigantochloa apus) has the highest resistance class (class I), and four other species of bamboo namely hitam (G. atroviolacea), kuring (G. kuring), india/tulda (Bambusa tulda) and lemang (Schizostachyum brachycladum), were classified in resistance class II. In the utlization, the five species of bamboo can be used without preservation, while the remaining 15 species of bamboo in resistance class III V should be preserved before using.
KETAHANAN 30 JENIS KAYU INDONESIA TERHADAP SERANGAN BUBUK KAYU KERING Heterbostrichus aequalias Waterh Jasni
Jurnal Penelitian Hasil Hutan Vol. 33 No. 3 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.3.225-235

Abstract

Thirty wood species originated from various regions in Indonesia were tested against powder-post beetle. Representative wood samples with the dimension of 7.5 cm x 5 cm x 2.5 cm were taken from each tree species and tested against powder post beetle (Heterbostrychus aequalias Waterh) for six weeks. Observation was carried out on the tested specimens, and the observed parameters comprised of the weight loss percentage and the survival rate of powder-post beetles. Besides, subjective observation was also performed on regard to the degree of the attack. The obtained data (i.e. wood-weight loss, beetles' survival rate, and degree of attack were further classified into five categories based on the resistance characteristics. Based on wood-weight loss revealed that as nine of the 30 wood species were regarded as class I (29.99%), three species as class II (9.97%), eight species as class III (26.67%), six species as class IV (19.99%), and four species as class V (13.33%). Pertaining to beetles survival rate, five species were categorized as class I (16.67%), three species as class II (9.99%), 12 species as class III (39.99%), eight species class IV (28.67%), and two species as class V (6.67%). Further, with regard to the degree of beetle attack, five species belong to the criteria of severely attacked (16.67%), whereas consecutively 16 species were classified as moderately attacked (53.33%) and nine species as slightly attacked (30%).
Co-Authors Abdurachman ADI SANTOSO Esti Rini Satiti Gunawan Pasaribu Gustan Pari Heru S. Wibisono Heru Wibisono I.M. Sulastiningsih Jamal Balfas Karnita Yuniarti Krisdianto Nurwati Hadjib Ratih Damayanti Rohmah Pari Santiyo Wibowo Sri Rulliaty Titi Kalima Wa Ode Muliastuty Arsyad