PENGERINGAN KAYU KARET (Hevea brasiliensis) DENGAN METODE RADIASI MATAHARI (GREEN HOUSE) UNTUK TUJUAN PENGAWETAN KAYU (original) (raw)
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PENGERINGAN KAYU KARET (Hevea brasiliensis) DENGAN METODE RADIASI MATAHARI (GREEN HOUSE)
Jurnal Hutan Tropis, 2020
The aim of this study is to analyze the optimal drying time of rubber wood (Hevea brasiliensis) in direct drying in the sun and by a solar kiln (green house). This research is expected to provide information on optimal drying time on natural drying directly under sunlight (solar radiation) and with kiln (Green House) to prolong the utilization of wood and reduce the costs. The parameters tested in this study are water content, density, drying rate, shrinkage, and color change. The results on optimal drying of rubber wood at 6 weeks drying time either in drying under direct sunlight or solar kiln in the green house.
KESESUAIAN LAHAN TANAMAN KARET (Hevea brasiliensis) DI DESA GIRI NANTO KABUPATEN SELUMA
JURNAL AGROTEKNOSAINS, 2019
Land resources are natural resources that are very important for human survival because natural resources are needed in every life. Land evaluation is an estimate of suitability for a particular land use in order to optimize the existing land in an area. This study aims to assess the suitability class of rubber plantations in environmental conservation efforts in Giri Nanto Village, Seluma Regency. The study was conducted in 2015 with a free survey method, analyzed descriptively qualitatively and quantitatively through an analysis approach to environmental impact and mapped through analysis using Arc.Gis software 10.0, land map units, and rubber land suitability criteria with a map scale of 1: 85,000. The results showed that the total area of potential land in the Giri Village area would later be 1,185 ha. The distribution of potential land suitability classes for rubber plants was mostly S2 land classes (quite suitable) covering 622.82 ha (8.9%), S3 class (marginal suit) covering ...
ANALISIS PEMASARAN KARET (Hevea brasiliensis ) DI DESA PULAU SARAK KECAMATAN KAMPAR KABUPATEN KAMPAR
IJAE ( Jurnal Ilmu Ekonomi Pertanian Indonesia ), 2021
then to factory. Marketing channel I obtained total marketing cost Rp1.568 / kg, total marketing margin of Rp1.549 / kg, and marketing profit of Rp791 / kg and farmer share of 83.10 percent. Marketing channel II obtained total marketing cost Rp1,807.45 / kg, total marketing margin of Rp1.585 / kg, and marketing profit of Rp634 per kg and farmer share of 82.71 percent. Marketing channel III obtained total cost Rp1.386 / kg, total marketing margin of Rp600 / kg and marketing profit of Rp150, 25 / kg and farmer share of 93.57 percent. The marketing efficiency of marketing channel I is 17.10 percent, marketing channel II marketing efficiency of 19.71 percent, and marketing channel III marketing efficiency of 14.86 percent.
Abstrak: Studi Metode Penurunan Kadar HCN Pada Biji Karet (Hevea brasiliensis) Sebagai Bahan Pangan Alternatif. Biji karet mempunyai peluang untuk dieksplorasi sebagai bahan pangan alternatif karena kandungan proteinnya yang tinggi. Biji karet mengandung zat anti nutrisi yaitu hidrogen sianida (HCN) sehingga harus diturunkan kadarnya agar aman dikonsumsi. Penelitian ini dilakukan untuk mengetahui metode penurunan kadar HCN pada biji karet dengan menggunakan rancangan acak lengkap (RAL) faktorial. Dua metode yang digunakan dalam penelitian ini antara lain, metode pertama yaitu perendaman biji karet dalam air dengan penambahan arang sekam padi dan NaCl (garam kasar) perbandingan 1:1 dengan konsentrasi 20%, 30% dan 40% dan lama perendaman 12 jam, 24 jam dan 36 jam. Metode kedua dengan penambahan arang aktif dan NaCl p.a (1:1) dengan konsentrsi 20%, 30%, 40% dan lama perendaman 6 jam, 12 jam, 18 jam. Nilai penurunan HCN terbaik dicapai dari metode pertama 135 mg/Kg biji karet, dari 3 perlakuan perendaman 12 jam, 24 jam, 36 jam dengan penambahan arang sekam padi dan garam kasar konsentrasi 40%. Sedangkan nilai penurunan kadar HCN terbaik pada metode kedua adalah 405 mg/Kg biji karet dari perlakuan perendaman 6 jam, 12 jam, 18 jam dengan konsentrasi penambahan arang aktif dan NaCl p.a 40%. Merujuk nilai penurunan HCN yang diperoleh pada metode pertama 135 mg/Kg berat biji karet, maka biji karet pada perlakuan ini aman untuk diolah menjadi bahan makanan dan dikonsumsi sehari-hari karena tidak melebihi ambang batas 1 mg per kilogram berat badan per hari. Kata Kunci: arang aktif, asam sianida, bahan pangan sumber protein, biji karet
Alotrop, 2019
This research was aimed to know the degree of Fenol compound, total acid and the activity of liquid smoke of Rubber (Hevea brassiliensis) Seed Shell also the application in obstructing the rancidity of beef. The Fenol compound was determined by using Reagen Follon-Ciocalteu. The total acid was determined by using the method of titrated acids.The ability as the antioxidant was tested by DPPH method and the ability of obstructing the rancidity of beef was done by measuring the alteration of TBA value in beef as long as saved. The result was shown the fenol compound in liquid smoke of Rubber Seed Shell as much as 0,84 % and the acetic acid content was 4.725%. The antioxidant test was produced IC50 value as much as 101.27 ppm. According to the IC50 value which got from the test that the liquid smoke of Rubber Seed Shell were included in moderate category. The increment of the liquid smoke of Rubber Seed Shell were able to suppress the rancidity of beef during the storage time. It was ma...
JURNAL HUTAN LESTARI, 2019
Rubber farming has been in demand by the people of Laja Village since 1990's as a livelihood by utilizing shifting fields within the forest. Some people's income from the results of rubber farming is very large, especially during the dry season, where people tap into rubber sap every day. Rubber prices experienced a decline that was felt by rubber farmers and in the rainy season the people could not tap rubber sap, the people were forced to find alternative jobs, such as gold mining and other jobs. This situation certainly raises different perceptions of society. This study aims to determine the public perception of rubber farming and analyze the relationship between knowledge, income and cosmopolitan factors. This study uses descriptive and associative surveys with interview techniques and the questionnaire contains a number of questions posed to respondents, collecting data using random purposive sampling. Data analysis using descriptive analysis of the chi square test and...
Jurnal Anatomi Fisiologi, 2014
Rubber tree (Hevea brasiliensis Muell.Arg) is one of the prime commodities in Indonesia for export and domestic demand and industrial raw material purposes. The quality of raw rubber material which is exported to abroad is determined through the harvesting process and also postharves processing material rubber. The good quality of rubber must be exempted from water contaminants or from other contaminant. The quality of rubber can be determined by analysis of Rubber's Dry Content. The perpose of this research is to analyze the condition Rubber' Dry Content with temperatur of 150 o C, 160 o C and 170 o C in PT Djambi Waras Jujuhan. The observation result of the physical treatment shows in the influence of temperatur toward Rubber's Dry Content. Tempereture of 160 o C shows ripennes and the best physical structure and also has Rubber's Dry Content appropriate with the standard than two others temperature.
Ziraa'ah : Majalah Ilmiah Pertanian, 2019
The purpose of this research is to know the revenue,the total cost,income and break even point of make Rubber Smoke Sheet farming. This research was conducted in Oktober 2018 at village Simpang Tiga, Mataraman, Banjar regency province South Kalimantan. The Purposive sampling metode used was by observing 23 farmers in Simpang tiga mataraman who.make rubber smoke sheet. The Average result of the revenue is Rp. 5.328.260,87/ farmer, the average total cost is Rp. 2.361.588,27/farmer, and total profit is Rp 2.966.672,60/farmer. BEP Rp. 1.288.984,64dan BEP product Rubber Smoke Sheet 51,56kg/farming. Based on the break even point,we can know the limit result which can give benefit or disvantage. From this result of development of farming make Rubber Smoke Sheet we believe that it has good prospect and revenue, of the break even point ,tecnicall and economically.