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Heru S. Wibisono
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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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.
PENGARUH ARANG DAN ASAP CAIR TERHADAP PERTUMBUHAN ANAKAN Gyrinops sp. Gusmailina; Sri Komarayati; Heru S. Wibisono
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.2018.36.1.23-31

Abstract

In Indonesia, Gyrinops is one important genera of agarwood producing trees, which is relatively slow growth. Stimulant addition is one possible way to enhance agarwood tree growth by improving the physiology activity. This paper studies the effect of charcoal and liquid smoke addition into the Gyrinops sp. seedling growth. Wood charcoal at various portion of 10%, 20% and 30%, and liquid smoke of 1%, 2%, 3% and 4% were added separately into seedling media. The charcoal and liquid smoke were made from mixed wood waste of sengon (Falcataria moluccana) and rubber wood (Hevea brasiliensis). Results showed that in general wood charcoal and liquid smoke addition improves Gyrinops seedling growth. The addition of 4% liquid smoke addition enhanced Gyrinops’s seedling growth as indicated by seedling height and diameter increments. In conclusion, wood charcoal and liquid smoke are two potential organic materials for seedling growth improvement.
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).
PENGARUH PENAMBAHAN ARANG DAN CUKA KAYU TERHADAP PERTUMBUHAN ANAKANShorea platyclados Sloot ex Fowx DAN Shorea selanica Blume Sri Komarayati; Heru S. Wibisono
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.2016.34.4.349-357

Abstract

Charcoal and wood vinegar are organic matters that can be used for soil improvement and induce plant growth. This paper studies the effect of charcoal and wood vinegar treatments into Shorea platyclados and Shorea selanica seedling's growth. The seedling growth parameters measured include seddling height and diameter, based on charcoal and wood vinegar treatments. Results show combination of 10% charcoal and 1% wood vinegar grows the highest seedling height average of 47.77cm and 1% wood vinegar treatment grew seedling's diameter average up to 6.23 cm of Shorea platyclados. The greatest average of Shorea selanica seedling's diameter of 5.28 cm was achieved by treatment of 10% charcoal and 1% wood vinegar.
Co-Authors Djeni Hendra Gusmailina Jasni Sri Komarayati Wa Ode Muliastuty Arsyad