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All Journal Indonesian Journal of Forestry Research Jurnal Penelitian Hasil Hutan
Djarwanto
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KETAHANAN ENAM JENIS KAYU TERHADAP JAMUR PELAPUK Sihati Suprapti; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 30 No. 3 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

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Abstract

Six wood species namely huru kacang wood (Neolitsea triplinervia Merr.), beleketebe (Sloanea sigun Szysz.), tunggereuk (Castanopsis tunggurrut A.DC.), ki endog (Acer niveum Bl.), buru mentek (Lindera polyantha Borrl.) and neem (Azadirachta indica Juss.), were evaluated its resistance property against nine fungal attack using Kolle-flash methods. Samples of every wood species were divided radially into two groups, namely outer and inner parts of log. Results indicated that A. indica belongs to resistant wood (class II), C. tunggurrut and L. polyantha were moderately resistant (class III), while, N. triplinervia, S. sigun and A. niveum were not resistant (class IV). Comparing of those two samples groups, the weight loss of the inner part was lower i.e. 8.26%, classified as moderately resistant (class III) than that of the outer part logs i.e. 12.4%, classified as not-resistant wood (class IV) to the fungal attack. The highest weight loss was occurred on the outer part log of N. triplinervia exposed to Pycnoporus sanguineus HHBI-324 (54.8%).
PEMANFAATAN SISA MEDIA JAMUR PELAPUK PADA DEKOMPOSISI LIMBAH PADAT PULP Acacia mangium Sihati Suprapti; Djarwanto; Sri Komarayati
Jurnal Penelitian Hasil Hutan Vol. 35 No. 4 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.4.243-254

Abstract

Currently, Ganoderma lucidum, Pleurotus ostreatus, and P. sajor-caju are prospective fungi for decomposition of pulp and paper industry’s waste. This paper studies the possible utilization of rotting fungi spent compost for decomposition of mangium sludge. Initially, the fungi were cultivated for three months on medium prepared from sengon (Falcataria moluccana) wood sawdust. The rotting fungi spent compost was then used for degrader activator by inoculating them into the Acacia mangium sludge, then, incubated for six months. Results revealed that after three month incubation the values of the Biological Conversion Efficiency (BCE) of sengon reached 13.41% (G. lucidum), 47.11% (P. ostreatus), and 38.06% (P. sajor-caju). Fungal inoculation into the sludge improved the C/N ratio as much as 71.59%. The usage of higher concentration of G. lucidum inoculums increased the C/N ratio value. After six months incubation, some sludge contents reduced by 48.76% (N), 35.42% (P) and 25% (K), except for Ca and Mg, which increased by 112.9% and 6.67%, respectively. Mineral content of the untreated sludge decreased by about 66.12% (Ca), 68.75% (P) and 4.17% (Mg), except for K and Ca which were increased by 2.08% and 64.52%, respectively. Cation exchange capacity (CEC) value of the sludge after incubation increased by about 3.85% (control) and 56.8% (treated).
PEMANFAATAN KOMPOS KULIT KAYU MANGIUM UNTUK MEDIA PERTUMBUHAN CENDAWAN MIKORIZA ARBUSKULA DAN BIBIT Acacia mangium Willd. Sihati Suprapti; Erdy Santoso; Djarwanto; Maman Turjaman
Jurnal Penelitian Hasil Hutan Vol. 30 No. 2 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.2.114-123

Abstract

Sterilized and unsterilized manginm bark which added with activators and composted for 30 days were used at a growth medium for mycorrhizal fungi and Acacia mangium seedlings. Degradation rate of the bark wus evaluated based on the changing content of organic carbon, total nitrogen, nutrient content, and its cation exchange capacity (CEC) Results showed that activators added on the compasting process of manpium bark reduced C/N ratio to 21.90 in sterilized bark and 25.30 in the ansterilized, respectively. The addition of actors tended to increase the nutrient content Le. N 0.82 -1.09%, P 0.22 -0.36%, and K. 0.36 -1.12%, and increase the value of CEC ints 31.3 to 32.7 me/100g Mycurrhizal colonization on medium means that composted mangium bark can be used both as growth and mycorrbizal carrier media. A high percentage of mycorrhizal colony was found in the medium made of sterilized mangium bark added with activators inoculated with Glomus sp. ir. 45%. The growth rate of A. mangium seedling on the mediume made of sterilized mangium bark added with activator tended to be bigher than that of the unsterilized bark. The highest growth was found on medium inoculated with Gigaspora sp., abile the largest stem diameter occurred on the medium inoculated with Glomus sp.
KEMAMPUAN PELAPUKAN 10 STRAIN JAMUR PADA LIMA JENIS KAYU ASAL KALIMANTAN TIMUR Djarwanto; Sihati Suprapti
Jurnal Penelitian Hasil Hutan Vol. 32 No. 4 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.4.263-270

Abstract

Five wood species from Dipterocarpaceae have been exposed to ten fungus strains, then were evaluated using SNI 7207:2014. The results shows that the most capable fungi to decay wood from the highest to the lowest are Schizophyllum commune (white rot fungi), Trametes sp., Pycnoporus sanguineus, Tyromyces palustris, Phlebia brevispora, Polyporus sp. HHB1-209, Polyporus sp. HHB1-371, Chaetomium globosum, Dacryopinax spathularia, and Lentinus lepideus (brown rot fungi). The highest weight loss was occured on Dipterocarpus glabrifgemmatus wood by S. commune. While the lowest weight loss was on Dipterocarpus glabrifgemmatus and Shorea hopeifolia wood by L. lepideus. The fifth of wood i.e. keruing (Dipterocarpus pachyphyllus, D. stellatus, D. glabrifgemmatus), meranti (Shorea hopeifolia) and resak (Vatica nitens) are belong into resistant wood (class II).
HUBUNGAN KETAHANAN KAYU TERHADAP JAMUR DENGAN KERAPATAN DAN PENGKARATAN LOGAM Sihati Suprapti; Abdurahman; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 38 No. 1 (2020): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2020.38.1.27-39

Abstract

Wood constructions are mostly fastened by metal screw or metal fastener, then corrosion resistance is an importantfactor. Wood natural durability against fungus and its relation to basic density are two other factors affecting woodquality for construction. This paper studies wood natural durability against fungus and metal corrosion in relation todensity of five Riau wood species. Wood samples were tested against fungus using the Kolle-flask method and wooddensity was measured based on DIN-2135-1975 standard. Result shows that Diospyros korthalsiana wood wascategorized as non-resistant (class IV), Tetramerista glabra wood was classified as moderately resistant (class III),while Shorea teysmanniana, Palaquium burckii, and Aglaia argentea woods are grouped into resistant wood(class II). In all wood species, weight lost of heartwood is lower than that of sapwood, but in the same durabilitygroup (moderately resistant). In general, there is a relationship between density and weight loss. The higher the wooddensity is the lower the weight loss. The average of weight loss of metal screwed wood is higher than wood withoutscrews. The highest weight loss was recorded from Palaquium burckii wood which was screwed and exposed toPolyporus sp., while, the highest screw weight loss was recorded from Shorea teysmanniana wood exposed toPycnoporus sanguineus. Rustic enamel was highly recorded from Tetramerista glabra wood, which was exposedinto Tyromyces palustris. Eight species of fungus are moderate and two species are low in capability of decayingwood. The highest decaying ability in corroding metal screws is found in P. sanguineus. The weight of rustic enamelfound in the metal screw caused by four fungus activity of (Chaetomium globosum, P. sanguineus, S. communeand T. palustris) was relatively similar.
FORMULASI RAGI CAMPURAN UNTUK PRODUKSI BIOETANOL DARI LIMBAH KAYU SENGON Ina Winarni; Sri Komarayati; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 35 No. 2 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.2.135-143

Abstract

Currently, bioethanol is one of biofuels which is potentially developed for new and renewable alternative energy. Bioethanol could be fermented from agriculture and forest wastes, with pre-treatment and hydrolysis process before the fermentation. Those process could be carried out by an addition of microbe (yeast). In order to gain greater ethanol content, yeast mixing formulation is crucial to obtain optimum ethanol content. This paper studies the formula of yeast mixing for optimum ethanol production of sengon wood waste. Formulation was conducted by mixing Aspergillus oryzae, Saccharomyces cerevisae, Rhyzopus oryzae and other substances with various treatments. Commercial yeast of 3 – 9% Sacharomyces cerevisae was used as a comparable control. Results showed that 7% yeast mixing was effective to produce 1.569% ethanol content from lignocellulose fermentation. The ethanol content is relatively greater than those of commercial yeast which constitutes of about 0.652% ethanol content.
BIOKONVERSI SERBUK GERGAJI KAYU HUTAN TANAMAN SEBAGAI MEDIA JAMUR PANGAN Pleurotus spp. Djarwanto; Sihati Suprapti; Agus Ismanto
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.2016.34.4.285-296

Abstract

Pleurotus spp. for food has been cultivated on various lignocellulose wastes. This paper studies the feasibility of fast grown wood species sawdust waste as medium for the cultivation of edible mushroom, Pleurotus spp. Wood species studied were mangium (Acacia mangium), damar (Agathis borneonensis) and rubberwood (Hevea brasiliensis). Twenty percent rice bran, 1% CaCO₃; 1% gypsum; 0.1%, 0.3% and 0.5% urea fertilizer as well as TSP (tri-superphosphate); and distilled water, were added to each wood sawdust formula. The results showed that sawdust from those three wood species could indicatively be utilized as medium for cultivating Pleurotus spp. Supplementation of urea into the media performed better result than that of TSP. The highest Biological Conversion Efficiency (BCE) value was obtained on rubberwood containing 0.3% fertilizer. With respect to the mushroom species in their ability to convert wood sawdust into mushroom biomass, the highest BCE value was recorded from Pleurotus ostreatus, then P. flabellatus, while P. sajor-caju was recorded as the lowest. Inoculation of Pleurotus mushroom at rubber-wood sawdust decreased the C/N ratio, although the used-medium was un-ripe compost.
KETAHANAN LIMA JENIS KAYU ASAL CIAMIS TERHADAP SEBELAS STRAIN JAMUR PELAPUK Sihati Suprapti; Djarwanto
Jurnal Penelitian Hasil Hutan Vol. 32 No. 3 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.3.189-198

Abstract

Fungal resistance of five wood species from Ciamis: langkaled (Litsea roxburghii Hassk.), cangkring (Erythrina fusca Lour.), kayu putih (Melaleuca cajuputi Powell), ki tanab (Zanthoxylum rhetsa D.C.), and burun leueur (Sterculia cordata Blume), was observed using Kolle-Halls method. Wood samples of inner and outer parts of the log were prepared from three trees of every species. Wood samples were tested against eleven strain of decaying fungi. The results show that langkaled and ki tanab woods are classified as resistant (class III), while cangkring, kayu putih and burun leueur woods fall into not-resistant (class IV). In general, the weight loss of samples taken from outer part is greater than those taken from the inner part of the log. It indicates that wood samples taken from outer part (not resistant, class IV) is less resistance than the inner part (moderately resistant, class III). There were also resistant variations between trees. In those five wood species, for example, the first tree (P-I) belong to class III, however the second and third tree (P-II and P-III) falls in to class IV. The highest weight loss was recorded in a wood sample of P-I of cangkring, which was exposed into Pycnoporus sanguineus HHBI-324. The wood fungi decaying capability from the highest to the lowest are P. sanguineus HHBI-324, P. sanguineus HHBI-348, Polyporus sp. HHBI-209, Trametes sp., Polyporus sp. HHBI-371, Schizophyllum commune, Chaetomium globosum, P. sanguineus HHBI-345, P. sanguineus HHBI-8149, Xylaria spinosis, and Dacryporus spathularia.
Co-Authors Abdurahman Agus Ismanto Andianto Danang Sudarwoko Adi Didi Tarmadi Dwi Ajias Pramasari Dyah Ayu Agustiningrum, Dyah Ayu Erdy Santoso Esti Rini Satiti Evi Sribudiani Freddy Jontara Hutapea Himmi, Setiawan Khoirul Ina Winarni Lisna Efiyant Lisna Efiyanti Listya Mustika Dewi Maman Turjaman Narto Pari, Rohmah Rahmanto, Raden Gunawan Hadi Ratih Damayanti Rudianda Sulaeman Sihati SUPRAPTI Sofianto, Imran Arra'd Somadona, Sonia Sri Komarayati Sulaeman Yusuf Syafrinal Teguh DARMAWAN Triwibowo, Dimas Wa Ode Muliastuty Arsyad Wahyu DWIANTO Widya FATRIASARI Yusup AMIN Yusup AMIN