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Sumatera utara
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Peronema Forestry Science Journal
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 304 Documents
 1   2   3   4   5 
KARAKTERISASI SENYAWA ISOPRENOID SEBAGAI PRODUK ALAMI PADA MANGROVE SEJATI MINOR NON SEKRESI Excoecaria agallocha L., DI HUTAN MANGROVE SUMATERA UTARA Hasbi Nurainun Nurainun; Mohammad Basyuni; Lollie Agustina
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Characterization of isoprenoid compounds for natural products on true mangrove minor non-secreting Excoecaria agallocha L. in North Sumatran mangrove forest. This study aims to determine the characterization of isoprenoid compounds and lipid content of the mangrove type of non-secretion (Excoecaria agallocha L.) The samples were collected from the leaves and roots of   E. Agallocha L. The results showed the composition NSL of E. agallocha L. were squalen, campesterol, stigmasterol, β-sitiosterol, cycloarterol, taraxerol, β-amyrin, germanicol, lupenone, betulin, lupeol, and α-amyrin. Stigmasterol is part of phytosterol had the highest content of 13.2. This research may provide information the diversity of triterpenoid and phytosterol composition in North Sumatran mangrove E. Agallocha L. Keywords: Mangrove, E. Agallocha (L), NSL and lipid.
Respon Eksplan Biji Gaharu (Aquilaria malaccensis Lamk.) terhadap Pemberian IAA secara In Vitro Melva Sari Gultom; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Agarwood (Gaharu) is an important non-timber forest products and has high economic value. The agarwood is the final product obtained from species A.malaccensis Lamk as raw material for the pharmaceitical and cosmetic industries. Increasing of the gaharu collection and international market circulation have resulted in the decline of the gaharu. The presence of gaharu in nature endangered triggers to do multiplication  aloes one with tissue culture technique. This research aims to determine the response of seed explants A.malaccensis and determine the concentration of the best growth regulator. This research used a Complete Random Design (RAL) with Growth  Regulator IAA in any concentrates with agarwood seed explants. The results showed that giving of IAA growth regulator that responds to the growing sprouts. Treatment concentration of IAA significant to the time sprouts appear but not significant on the appearance of sprouts, number of leaves and sprouts length. Emerging sprouts fastest time occurred in the treatment of 6 ppm IAA 9 days after planting. Keyword: Agarwood, Tissue Culture, Growth Regulator
Respon Eskplan Biji Gaharu (Aquilaria malaccencis Lamk.) terhadap Pemberian NAA dan IBA Secara In Vitro Romasli Nadeak; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Agarwood is non-wood forest product with high number of economic because the wood has many benefits. The presence of gaharu in nature is endangered because of illegal logging and for development of agarwood needed seed quality supplying, one with tissue culture. This study aims to determine the response of seed explants A. malaccensis and determine the concentration of the best NAA and IBA for induction of callus. This research use Complete Random Design (RAL) with 2 Growth  Regulator NAA and IBA in any concentrates with agarwood seed explants. Results showed that callus was obtained as response of  agarwood seed explants with NAA and IBA and the concentrate that’s have real an effect on to determine the time of callus appear with best concentrate was NAA 2 ppm dan IBA 2 ppm. Callus appear dominated by olive green and green brown color, meanwhile tekstur of callus dominated by compact node. Keywords: Agarwood, Callus, NAA, IBA, in vitro
Pengembangan Perekat Likuida dari Limbah Kulit Buah Kakao (Theobroma cacao L.) Marcelila Medynda; Tito Sucipto; Luthfi Hakim
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Increased need for adhesive in the wood processing industry require alternative to meet the needs. Cocoa is one of natural resource that contains lignocelluloses and potential to be alternative adhesive through liquefaction process. This research aim to determine adhesive quality such as visible, degree of acidity (pH), viscosity, density, solid content, gelatin time, ash content , free formaldehyde, and crystalline degree, compare the adhesive quality of cocoa fruit outer skin (CFOS/ KBKL) and inner skin (CFIS/ KBKD), and compare them with SNI 06-4567-1998. Mixed cocoa fruit skin, H2SO4, technical crystal phenol, NaOH and formalin with 90ºC temperature for 2 hours. Result of research showed that cocoa fruit skin adhesive is phenolic group with CFOS was liquid adhesive characteristic, brown colored, waste free, degree of acidity was 10, viscosity was 0,8355 cps, density was 1,156, degree of solid content was 42,33%, gelatin time was 89 minutes 37 seconds, ash content was 9,2%, free formaldehyde was 0,8% and crystalline degree was 35,19% and CFIS characteristic was liquid, reddish brown colored, waste free, degree of acidity was 10, viscosity was 31,202 cps, density was 1,262, degree of solid content was 44,66%, gelatin time was 73 minutes 45 seconds, ash content was 13,8%, free formaldehyde was 0,48% and crystalline degree was 37,28%. CFIS better than CFOS because it has fit with the standards well and also almost standard approach although not according to standard. Cocoa fruit skin liquid adhesive quality were gotten fulfilled SNI 06-4567-1998 enough such as appearance, degree of acidity, degree of solid content and gelatin time. Free formaldehyde characteristic also fulfill of SNI 06-4565-1998 was ≤2% Key word: waste, cocoa fruit outer and inner skin, liquiefaction, wood liquid adhesive
Jenis, Potensi dan Nilai Ekonomi Hasil Hutan yang Dimanfaatkan Masyarakat sekitar Tahura Bukit Barisan Faujiah Nurhasanah; Ridwanti Batubara; Oding Affandi
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

TAHURA Bukit Barisan represent a forest bunch which is have direct interaction between people and forest. Doulu and Jaranguda Village is around Tahura area. Therefore was conducted   research to know type, potency  and economic value of forest product which  exploited  by society around TAHURA. The method that is used to determine  the respondent is snowball sampling method. Based on interview on  responden, type of forest  product which  exploited by  people around TAHURA area are  regen bamboo, bulak bamboo, medical plant, honey and animal . The biggest Economics value at both village  is Bamboo Regen exploiting equal to Rp.1.069.256.000,00. Forest provide a major contribution to public life. Key words : TAHURA, type, economic value, contribution
ASETILASI KAYU KEMIRI (Aleurites moluccana), DURIAN (Durio zibethinus), DAN MANGGIS (Garcinia mangostana) Febrina Heryani Tarigan; Luthfi Hakim; Rudi Hartono
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The problem solve of unstable dimensions wood fruits and susceptible wood from termites attack was an attempt preservation of wood by acetylation. The research purposes were to knew the effect of wood variety and acetic acid concentration to retention value, to evaluated the Weight Percent Gain (WPG) and dimention stability, and to evaluated durability from attack termite based on laboratory dan grave yard test. Some kind of wood such as kemiri, durian, and manggis woods were treated by soaking during 2 weeks with acetic acid concentration of 10%, 15%, 20%, and 25%. The results showed that high retention on kemiri wood with concentration of 25% was 7.73 gr/cm3. Durian wood in concentration of 15% had WPG value (44.41%) was good dimention stability (67.8%). The increasing of acetic acid concentration caused the increasing of retention and wood resistance from termite attack in laboratory and grave yard test. Key words: acetic acid, wood acetylation, termites, WPG, ASE
Asetilasi Kayu Rambutan (Nephelium lappaceum L), Cempedak (Artocarpus integer Merr), dan Rambai (Baccaurea montleyana Muell. Arg) Jendro Zalukhu; Luthfi Hakim; Rudi Hartono
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The utilization of fruit woods increased according of increasing human needs. Several weakness of fruit woods were bad dimensional stability and susceptible wood from termite attack. Preservation can improve the dimensional stability and increase the wood from termite attack. One preservation method of was acetylation. The research purpose were to known the effect of rambutan, cempedak and rambai woods variety and acetic acid concentration to retention value, to evaluated the dimention stability and Weight Percent Gain and to evaluated durability from attack termite based on graveyard test and laboratory test. Some kind of wood such as rambutan, cempedak and rambai woods were treated by soaking during 2 weeks with acetic acid concentration of 10%, 15%, 20% and 25%. The results showed the effective retention on rambai wood with concentration of 20% was 3.81%. The high dimention stability ASE on rambutan wood with concentration of 15% was 73.37%, and the high WPG on rambai wood with concentration of 25% was 46.66%. The increasing of acetid acid concentration caused the increasing retention and wood resistance from termite attack in graveyard test and laboratory test. Key words: Wood, acetylation, ASE, WPG, termite
PENILAIAN EKONOMI SAMPAH KERTAS DI KOTA MEDAN Ori Yani Yunilda; yunus afifuddin; Ridwanti Batubara
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Problems were caused by used paper in each area are common problems, especially in urban area, for example Medan city. Types rubbish were generated from household level to the level of industries different, namely organic and inorganic. Example of organic rubbish is a used paper. One of the countermeasures for used paper are not to accumulate by collecting and selling used paper for recycling. The purpose of this study was to identify source used paper, the economic value and the benefits and the flow of marketing of used paper were collected and sold by people in the city of Medan. Based interviews with respondents, the source used paper were from household, market, office, shop and newspaper distributor. The greatest economic value is major collector that Rp. 115.162.500,- of year per respondent. The lowest economic value is collector that Rp. 1.055.000,- of year per respondents. Collected and sold of used paper while were contributing to the collectors that 27,85 % to total income respondents of month; the minor collectors that 38,87 % to total income respondents of month and the major collectors that 68,96 % to total income respondents of month. The flow are marketing of used paper from collectors, minor collectors, major collectors and end at the used paper mill. Key words: used paper, Medan, contribution, economic value
PEMANFAATAN DAN POTENSI PEMASARAN PAKU POHON (Cyathea contaminans Wall. ex Hook.) Studi Kasus Masyarakat di Kecamatan Pancur Batu dan Kecamatan Sibolangit Henny E. N. Gultom; Pindi Patana; yunasfi yunasfi
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Penggunaan tumbuhan paku pohon saat ini umumnya digunakan sebagai media tanaman anggrek. Bagian tumbuhan paku pohon yang digunakan untuk menempelkan tanaman anggrek adalah bagian akar. Sumber tumbuhan paku pohon yang digunakan berasal dari hutan dan lahan di sekitar tempat tinggal masyarakat. Tujuan penelitian dilakukan untuk mengetahui pemanfaatan dan potensi pemasaran tumbuhan paku pohon serta teknik pemanenan dan upaya budidaya tumbuhan paku pohon oleh masyarakat desa di Kecamatan Pancur Batu dan Kecamatan Sibolangit. Penelitian dilakukan pada bulan April – Mei 2012 dengan metode survey dan menilai secara ekonomi tumbuhan paku pohon yang digunakan dan dipasarkan oleh masyarakat desa di Kecamatan Pancur Batu dan Kecamatan Sibolangit. Berdasarkan hasil wawancara, tumbuhan paku pohon yang umumnya dimanfaatkan dan dipasarkan sebagai media tanaman anggrek adalah berupa batangan, potongan kecil, pot bunga, dan serabut. Total nilai ekonomi tumbuhan paku pohon di Desa Bintang Meriah, Kecamatan  Pancur Batu sebesar Rp 480.480.000,00/tahun dan di Desa Suka Makmur, Kecamatan Sibolangit sebesar Rp 848.160.000,00/tahun.   Kata Kunci: cyathea contaminans, nilai ekonomi, paku pohon, pemanfaatan.
Upaya Pengembangan TWA Lau Debuk Debuk Berbasis Masyarakat Effort Development of TWA Lau Debuk Debuk base on Society. Afriyanti Br Sembiring; Pindi Patana; Agus Purwoko
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

AFRIYANTI SEMBIRING. Effort Development of TWA Lau Debuk Debuk base on Society. Under supervised by Pindi Patana and Agus Purwoko. This study is aimed to know benefit and potency of TWA Lau Debuk Debuk, knowing role and perception and also society in development of TWA Lau Debuk Debuk and also formulate strategy alternative of society in developing TWA Lau Debuk Debuk. This research was conducted with purposive sampling method, while analysis method used descriptive analysis. Result of research indicates that the level of community participation in the activity of development TWA Lau Debuk Debuk is in the middle category where is society seldom to follow the activity. The Important Factor which determine efficacy of development of TWA Lau Debuk Debuk is participation of society like planning, execution, and program evaluation development of TWA Lau Debuk Debuk. Keyword: Ecotourism,  participation of society, TWA Lau Debuk Debuk.

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