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Jurnal Penelitian Hasil Hutan
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Articles 3 Documents
Search results for , issue " Vol 11, No 2 (1993): Jurnal Penelitian Hasil Hutan" : 3 Documents clear
BIODEGRADASI KOMPONEN KIMIA PADA LIMBAH LIGNOSELU- LOSA OLEH JAMUR PERUSAK KAYU (Biodegradation of wood chemical components in lignocellulosic wastes by white­rot fungi) Komarayati, Sri; Nurhayati, TjuTju; Gusmailina, Gusmailina
Jurnal Penelitian Hasil Hutan Vol 11, No 2 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1993.11.2.57-64

Abstract

This paper reports the result of an experiment on the treatment of different forestry wastes, i.e., the sawdust of Hevea brasiliensis Pinus merkusii, Paraserianthes falcataria and the leaves of melaleuca leucodendron with Schizophyllum commune Fr for 7 weeks.The purpose of this study is to assess the effect of white-rot fungi inoculation to the decrease of chemical components like cellulose, lignin and hemicellulose.the results reveal that after treating for 7 weeks, sengon sawdust still has a very .high cellullose content of 22.55% in rubber tree sawdust, lignin and hemicellulose contents are 32.66% and 47.39%, respectively.After decreasing chemical components. Lignocellulose waste could be fermented by solid state fermentation for biogas.
BEBERAPA SIFAT MINYAK SABAL-SABAL (CINNAMOMUM SUBAVENIUM) (Some properties of Sabal-sabal (Cinnamomum subavenium) oil Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 11, No 2 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1560.656 KB) | DOI: 10.20886/jphh.1993.11.2.45-48

Abstract

The physico-chemical properties and identification of new essential oils from Cinnamomum subavenium Miq (Sabal-sabal) bark prepared by using vacum destillation process is presented in this paper. The bark used was subjected to three different position i e : top, middle and bottom. The physico-chemical properties observed are specific gravity, acid value, ester conent, solubility in ethanol 80 % refractive index at 20°C, and optical rotation. The major components of essential. oils were identified by using peak enrichment technique and retention data from essential oil standart of the Gas Liquid Chromatographic method. In addition, the-yield was determined.The result shows that the yield ranges from 1. 73 - 1. 87 % specific gravity at 25°C from 0. 93689 - 0. 94454, refractive index at 20°C from 1.47966- 1.48542, optical rotation at 25°C from -11°9 to -12°39, acid value from 1,02 – 1.34, ester content from 6.45 - 8.29 and solubility in ethanol 80 % is soluble in 1:1. The composition of major components of the Sabal-sabal oil were iso borneol ranges from 17.75 - 22.15 %, aldehyde C-II from 6.09-17.ll %, cineol from 13.20- 14.23 %, iso bornyl acetate from 5.28 -8.47 %, a terpinyl acetale from 5.21 - 8.81 %. Furthermore some components found in the oil were a pinen, β pinen, terpinene , β caryophyllene, aldehyde C-9, cinamaldehyde and hidroxy citronellol Based on major components and its derivatives the oil is used in the perfumery and flavor industry.
PEMBUATAN BIOGAS DENGAN PROSES RUDAD Biogas production by using RUDAD process (Rumen derived anaerobic) Sudradjat, R; Triyanto, Triyanto
Jurnal Penelitian Hasil Hutan Vol 11, No 2 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3818.453 KB) | DOI: 10.20886/jphh.1993.11.2.65-73

Abstract

This experiment deals with anaerobic decomposition of organic materials into biogas and compost materials using the so called RUDAD (Rumen Derived Anaerobic Digestion) process. the inoculum used in the process was ruminantia microbes living in fistula liquid of goat stomach. The predominantly microbes involved were cilliate protozoa, phycomycetes fungi, anaerobic bacteria. substrates used were King grass, city waste and saw dust with and without agitation during the treatments.The Results showed that the highest biogas production was obtained from King grass i.e 1.06 1/d and 1.20 1/d for those without and with agitation treatments respectively. the highest volatile solid reduction was also obtained from King grass with the reduction of 6.4 percent for the process without agliation and 7.4 percent for the agitated treatment. king grass again showed the highest COD reduction, i.e. 2.0 g/g and 2.3 g/g for those without and with agitation, respectively. Either for cellulose and lignin degradation,King grass gave the highest cellulose reduction of 13.2 percent for the process without and 14.5 percent for the process with agitations, while lignin reductions were 1. 8 percent for the first and 0. 6 percent for the second treatments.

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