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Djeni Hendra
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KARAKTERISASI DAN PEMANFAATAN ASAP CAIR DARI TEMPURUNG BUAH BINTARO ( Carbera manghas Linn.) SEBAGAI KOAGULAN GETAH KARET Djeni Hendra; Totok K Waluyo; Arya Sokanandi
Jurnal Penelitian Hasil Hutan Vol. 32 No. 1 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.1.27-35

Abstract

Smoke liquid is a condensation product of raw material combustion containing cellulose, hemicellulose and lignin. Itproduces many compounds that have antimicrobial, antibacterial, and antioxidant effect such as organic acids and itsderivatives. Bintaro fruit shell is a waste of oil processing bintaro that are not utilized. Generally, latex coagulation usesformic acid or acetic acid that it's expensive and less environmentally friendly. Bintaro shell pieces is unused material andcontaining cellulose, hemicellulose, and lignin made into smoke liquid that is acidic and could reduce pH so the latex willcoagulate faster. The purpose of this study was to use smoke liquid of shell bintaro fruit shell as an alternative coagulant forrubber latex material.Smoke liquid wasmade using a modified drum kiln with a temperature of 400 C for 7 hours. Smoke liquid is purifiedby distillation up to 200 C. Smoke liquid that has been purified, further analyzed of its physical properties such as watercontent, viscosity, specific gravity, pH, acidity and phenol. Application of smoke liquid as rubber coagulant where doneusing smoke liquid concentration of 5%, 10%, 15%, 20%, while smoke liquid from coconut shell was used as acomparison. The results showed that the best results for coagulating was obtained from bintaro shell concentration of 20%and the fastest time for coagulating obtained from coconut shell smoke liquid concentration of 5%. Bintaro shell smokeliquid can be used as a rubber coagulant but for coagulation time isnot as fast as coconut shell smoke liquid.
PEMBUATAN BIODIESEL DARI BIJI KEMIRI SUNAN Djeni Hendra
Jurnal Penelitian Hasil Hutan Vol. 32 No. 1 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.1.37-45

Abstract

Due to limitation of resources the availability offossil fuel is become decreasing, an alternative fuel is needed such as Aleurites trisperma Blancoseed before of big potential as source for plantation, the composition of seed kernel hasa highlevel of oil (43.3%).Biodiesel production process was done in the laboratory, its objective to establish the optimum condition. The addition ofcatalyst H PO (degumming process) of 0,5%, 0,75%, 1%. The esterification treatment use a methanol catalyst mixtureof 10%, 15%, 20% with HCl and H SO of 0,5%, 0,75% and 1%. The transestrification treatment use a methanolcatalyst mixture of 10%, 15% and 20% with KOH and NaOH of 0,2%, 0,4%, 0,6%. Optimum results will beapllied to biodiesel production in large scale.In making Aleurites trisperma Blanco biodiesel which meet the Indonesian National Standard quality (SNI),chemical used were mixture of methanol 20% (v/v) and catalys NaOH 0.6% (w/v), where resulting in biodiesel withmoisture content 0.05 %, acid number 0.76 mg KOH/g, free fatty acid content 0.38 %, density 865 kg/m , kineticviscocity at 40 C of 5.41 mm /s (cSt), base number 101.49 mg KOH/g, alcyl ester content 104.55% massa, iodnumber 109.73 g I /100 g, cetana number 59,08, and yield of biodiesel oil 79.92 %.
PENGARUH PEMBERIAN AMELIORAN ORGANIK TERHADAP PERTUMBUHAN TIGA JENIS ANAKAN Novitri Hastuti; Djeni Hendra; R. Esa Pangersa Gusti
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.2018.36.3.171-180

Abstract

The availability of organic ameliorants is very important to induce seedling growth. This study examines the effect of various organic ameliorant addition into the growth of kemenyan seedlings (Styrax benzoin Dyrand), trembesi (Samanea saman Jack. (Merril.) ) and ki bawang (Melia excelsa Jack). The addition of organic ameliorants were grouped into 11 different treatments: (p) soil (control); (q) charcoal organic fertilizer (POA) 10%; (r) POA 10%+ charcoal sawdust (ASG) 5%; (s) POA 10% +ASG 10%; (t) organic fertilizer tablet of charcoal and mycorrhiza (POAM); (u) organic fertilizer tablet of mycorrhiza (POM); (v) POM + ASG 5%; (w) wood vinegar (CK) 1%; (x) CK 1% + ASG 5%; (y) CK 2%; (z) CK 2% +ASG 5%. The Results showed that treatment r, the use of 10% charcoal organic fertilizers (POA) and5% charcoal sawdust (ASG) affected most significantly to the height increments. The analysis of variance showed that the various treatment of ameliorant addition affected significantly to height increments but did not have significant effect to the diameter increments.
KARAKTERISTIK KARBON AKTIF DARI KULIT BUAH MALAPARI (Pongamia pinnata L. Pierre) Ibrahim; Djeni Hendra; Nur Adi Saputra; Eti Rohaeti
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 | DOI: 10.20886/jphh.2022.40.1.1-6

Abstract

Vegetable oil production of malapari (Pongamia pinnata L. Pierre) fruit remains peels that haven't been utilized. Malaparifruit peel is potential for activated carbon. The purpose of this research is to use malapari fruit peel waste as raw material forproducing activated charcoal. Samples were carbonized at temperature of 400°C and continued activation with phosphoric acid2% and physical activation at temperature of 750°C by flowing steam for 60 minutes. The process resulted in the Optimumcondition. It yields 54% charcoal recovery, moisture content of 8.6%, volatile matter of 11.85%, ash content of 24.73%, fixedcarbon of 63.42%, benzene adsorptivity of 10.15%, metilene blue adsorptivity of 93.89 mg/g, iodine adsorptivity of 648.62mg/g, and specific surface area of 348.11 m2/g. Activated carbon in this study is below Indonesian standards, which is influencedby the activation retention time.
KEMUNGKINAN PENGGUNAAN NANO KARBON DARI LIGNOSELULOSA SEBAGAI BIOSENSOR Gustan Pari; Adi Santoso; Djeni Hendra; Buchari; Akhirudin Maddu; Mamat Rachmat; Muji Harsini; Bunga Ayu Safitri; Teddi Heriyanto; Saptadi Darmawan
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.2016.34.2.111-125

Abstract

In the forest products field, the nano technology that can be developed is among others nano carbon derived from lignocellulosic stuffs. In relevant, this paper observes information and technology on the charcoal processing from lignocellulosic stuffs into nano carbon. The lignocellulosic stuffs used in this research consisted of teak wood, further carbonized into charcoal at 400-500 C using drum kiln and then purified by re-carbonizing it at 800 C for 60 minutes by using steam and sodium hydroxide (KOH) 15% as activation agent. Prior to purification, the charcoal sustained the doping (intercalation) process with Nicel and re-carbonize again at 900 C for 60 minutes. The qualities and structure of all the resulting carbon were evaluated using nano scale device pyrolysis-gas chromatography mass spectrophotomtry (PyGCMS), scanning electron microscope-energy disverse spectrophotometry (SEM-EDS and X-ray diffraction (XRD), and examined as well of their dielectric characteristics. Result show charcoal was examined of its physical and chemical properties. Manufacture of biosensor by using molecularly imprinted polimer (MIP) system based on carbon paste and optimizing. Results show that nano carbon from lignocellulose can be made for biosensor with MIP system. Optimized formulation were mixed with15% MIP, 45% carbon and 40% parafine with nernst factor of 49 mV/decade and limit detection of 1.02x10-6 M at pH4.
PEMBUATAN BIOETANOL DARI NIRA NIPAH DENGAN ALAT HASIL REKAYASA TIPE P3HH-1 Djeni Hendra; Sri Komarayati; Heru S. Wibisono
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.2016.34.1.1-10

Abstract

High consumption of fossil fuel causes energy crisis since its reserve is decreasing. This fact stimulates many studies to find out alternative energy as fossil fuels substitute. Bioethanol is considered as one of the most important source of alternative energy extracted fromplants.This research is aimed to provide tool engineeringrequired in producing bioetanol from Nypa fruticanssap. The engineering is consisted of two reactors. The first reactor can be used for pasteurization, sacarification and fermentation. The important second reactor is used as a distillation unit. The tool engineering has important advantage by using SSF (Simultaneous Sacarification and Fermentation) technique. By using this technique, processof pasteurization and fermentation can be carried out in onereactor. However the low levelof bioethanol flow rate becomes the weaknessof this tool . Theyield of Nypa fruticanssap was about 13.5% and the bioethanol contentof 70-94.5% with an averageof 84.8%. The yield of bioethanol distillation can be improved through the dehidration process. Bioethanol content can be increased from 94.5%to 98.5% by the dehidration process.
KARAKTERISTIK BIODIESEL BIJI BINTARO (Cerbera manghas L) DENGAN PROSES MODIFIKASI Djeni Hendra; Santiyo Wibowo; Novitri Hastuti; Heru S.Wibisono
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.2016.34.1.11-21

Abstract

Biodiesel is a diesel fuel made from vegetable oils extracted from various forest plants. This paper studies the characteristics of biodiesel made from Bintaro's seed (Cerbera manghas L.) by modified process. The modification process includes pretreatment and degumming processes. In the pretreatment process, modification includes raw material's treatment such as steaming, washing, drying and compressing. Degumming modification process includes addition of phosphoric acid catalyst, then bentonite; esterification by methanol acid catalyst and followed by addition of zeolite; the transesterification process by methanol bases catalyst. Results show that physico-chemical properties of biodiesel made from Bintaro's seeds including acid value, density, iod number, viscosity and ester-alkyl content met to Indonesian National Standard (SNI) on Biodiesel.
KARAKTERISTIK BIO-OIL DARI RUMPUT GELAGAH (Saccharum spontaneum Linn.) MENGGUNAKAN PROSES PIROLISIS CEPAT Santiyo Wibowo; Djeni Hendra
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.2015.33.4.347-363

Abstract

T the information on production technology of bio-o his paper studies il from gelagah grass (Saccharum spontaneum L inn.) and its properties using fast pyrolysis. The variables used in this study are temperature 550 °C and 600 °C and size of samples which are 20, 40 and 60 mesh. The results showed that highest production of bio-oil attained from sample size 40 mesh with treatment at 550 °C, with the following characteristics; yields of liquid was 30 88%, phenol 7.58, pH 2.62, specific gravity 1.1108 g/ cm , heating value 25 29 MJ/ k g and flame power was at slow level. Bio-oil 3 produced by this process predominantly composed of acetic acid, phenols and dan 1-hydroxy 2-propanone.
PEMANFAATAN ARANG AKTIF CANGKANG BUAH BINTARO (Cerbera manghas) SEBAGAI ADSORBEN PADA PENINGKATAN KUALITAS AIR MINUM Djeni Hendra; Armi Wulanawati; Kamela Gustina; Heru Wibisono
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.2015.33.3.181-191

Abstract

Bintaro seed is widely used as an alternative raw material for biodiesel and waste the fruit-shell. This paper studies the utilization of fruit-shell waste for activated carbon. Activated charcoal was relied on two factors, namely chemical activator (H₃PO₄ concentration) and activation time of hot steam. Activated charcoal quality was tested against Indonesian National Standard (SNI 06-3730-1995). Results show the best activated charcoal is the treatment using H₃PO₄ 15% and 90 minutes hot steam. The process produce activated charcoal quality of 9.98% moisture content, volatile matter 9.16%; ash content 12.45%; fixed carbon 78.4%; adsorption on iodine 784.498 mg/g adsorption on benzene 17.73%; and adsorption on methilene blue 127.705 mg/g. The adsorption mechanism is similar with those adsorption of Langmuir isotherm with linearity of 0.9691. In term of improving water quality the best activated charcoal should be able to reduce the concentration of Fe in the water by 100 % and Mn by 86.94 % respectively.
KARAKTERISASI STRUKTUR NANO KARBON DARI LIGNOSELLULOSA Gustan Pari; Adi Santoso; Djeni Hendra; Buchari; Akhirudin Maddu; Mamat Rachmat; Muji Harsini; Teddi Heryanto; Saptadi Darmawan
Jurnal Penelitian Hasil Hutan Vol. 31 No. 1 (2013): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2013.31.1.75-91

Abstract

The science advancement in this century is such that in the future it will enter the nano technology. More specifically in the forest products field, the nano technology that can be developed is among others nano carbon derived from lignocelulosic stuffs. In relevant, this research aims to provide information and technology on the charcoal processing from lignocellulosic stuffs into nano carbon. The lignocellulosic stuffs used in this research consisted of teak wood and bamboo, further carbonized into charcoal at 400-500°C using drum kiln. The resulting charcoal was examined of its physical and chemical properties, crystalinity degree and dielectric characteristics, and then purified by re-carbonizing it at 800°C for 60 minutes. Prior to the purification, the charcoal sustained the doping (intercalation) process with Zn, Ni and Cu metals each respectively. After the purification, the charcoal was ground to very tiny particels using HEM (high energy machine) device for 48 bours. In this way, the charcoal with high crystalinity was yielded, and further sintered using spark plasma at 1,300 C into the nano carbon. The qualities and structure of all the resulting carbon (carbonized charcoal, re-carbonized charcoal, intercalated charcoal and sintered nano carbon) were evaluated using nano scale device (Py-GCMS, SEM-EDX and XRD), and examined as well of their dielectric characteristics. In turns out that the best quality charcoal was obtained from teak wood charcoal carbonized at 800°C, intercalated with Ni atoms at the ratio 1:5. The resulting charcoal afforded high crystalinity (78.98%), low electric resistance (0.17 2), and high conductivity 175.52 2'm Qualities of the corresponding nano carbon (after sintering) were such that its crystalinity spectaculary reached 81.87%, resistance (R) 0.01 & with very bigh conductivity 1067.262'm'. The nano carbon that resulted seems favorably prospective for bio-censor, bio-battery, and bio-electrode. Accordingly futher related research deserves carrying out.
Co-Authors ADI SANTOSO Akhirudin Maddu Armi Wulanawati Arya Sokanandi Buchari Bunga Ayu Safitri Eti Rohaeti Gustan Pari Heru S. Wibisono Heru S.Wibisono Heru Wibisono Ibrahim Kamela Gustina Mamat Rachmat Muji Harsini Novitri Hastuti Nur Adi Saputra R. Esa Pangersa Gusti Santiyo Wibowo Saptadi Darmawan Sri Komarayati Teddi Her anto Teddi Heriyanto Teddi Heryanto Totok K Waluyo