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Woesono, Hastanto Bowo
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KARAKTERISTIK MINYAK SEREH WANGI DARI DAERAH ISTIMEWA YOGYAKARTA Woesono, Hastanto Bowo; Sushardi; Purwanto, Muhammad Amir
Jurnal Wana Tropika Vol 11 No 2 (2021): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v11i2.182

Abstract

The market needs will be fragrant citronella oil increases, but it is not worth the production and quality of fragrant Lemongrass oil is produced. The purpose of this study, that is, to figure out the best combination of sources of raw materials and factors of the size of the craftmanship the leaves against the yield and quality of fragrant citronella oil. Research design used was Random Complete Factorial Design, using two combination treatment that is the source of the raw material and the size of the craftmanship leaves. The observed parameters include: color, yield, citronellal, citronellol and geraniol. The results of this study indicate that the color of the resulting eligible SNI 06-3953-1995 that is pale yellow to yellow-brown. Combination treatment of the source of the raw material and the size of the leaf is very different from real craftmanship against yield oil of citronella scented with the highest average on the source of raw material for the village of Wedomartani, craftmanship and size of 0.93% leaves 10 cm that is 0.94%. Chemical content of citronellal shows that the source of the raw material and the size of the different leaf craftmanship not real. Chemical content of citronellol and of the raw materials sources that geraniol very different real, whereas the size of different leaf craftmanship not real. The average content of chemical sitronellol and geraniol at the source of the raw materials of the highest village of Kebonharjo, the content of citronellol 13.11% and geraniol content 34.84%. Key words: raw material sources, treatment, quality of citronella oils
Siklus Hidup Ulat Sutera Samia ricini Daun Singkong dan Potensi Pakan dari Agroforestri Sengon dan Singkong di Widodomartani, Ngemplak, Sleman, Daerah Istimewa Yogyakarta Prijono, Agus; Rawana; Woesono, Hastanto Bowo; Nugroho, Yunianto Hargo
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1641

Abstract

The people of Widodomartani mostly have agricultural land that is managed independently. One of the agricultural land management practices carried out is sengon and cassava agroforestry. Cassava in addition to being taken from the tubers and leaves for vegetables can also be used for the cultivation of samia ricini silkworms. Cassava is usually planted on the sengon path on the guludan path. The planting distance of sengon is 2m x 2m while the distance between yams is 2m x 0.7 m or between sengon there are 3 cassava. This study aims to determine life cycle of Samia ricini silkworms, the production of cassava leaves and their potential for the cultivation of Samia ricini silkworms. The method used was to take samples of cassava plants to calculate the number of stalks, calculate the weight of the leaves and convert the feed needs of Samia ricini caterpillars and to known life cycle of Samia ricini silkworms. The results of the study obtained for life cycle of Samia ricini silkworms 53-61 days (eeg fases 7 days, 21-30 days caterpillars/larva, 17 days cocoon/pupae, and 8 days imago/silkworms) and an average leaf production per cassava plant of 123,466 leaf stalks. The number of plants per ha is around 7,142,857 plants. The potential production of the number of thigh leaves is 881,899,982 stalks. The average weight of 1 petiole is 4.06 grams (average 2.786 grams without stalk). The feed requirement of 1 large caterpillar is 15.3097 petioles / 62.157 gr (42.6528 gr without stalk). One hectare of sengon and cassava agroforestry land can support the cultivation of 57,603,348 samia ricini caterpillars. The average weight of one cocoon is 2.10 grams and silk (cocoon not pupae) 0.28571 gr (13,6%). One ha of land can support the production of silk cocoon as much as 120,967,030 gr or 120,967 kg.
Pertumbuhan Tanaman Pokok Sengon Umur 30 Bulan pada Agroforestry Sederhana di Widodomartani Ngemplak Sleman Yogyakarta Prijono, Agus; Rawana; Woesono, Hastanto Bowo; Saputro, Setiaji Heri
Proceedings Series on Physical & Formal Sciences Vol. 8 (2025): Prosiding Seminar Nasional Fakultas Pertanian dan Perikanan
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v8i.1483

Abstract

Masyarakat widodomartani sebagian mengusahakan lahannya untuk tanaman hutan. Tanaman sengon disenangi masyarakat karena cepat tumbuh dan cepat menghasilkan. Umumnya pola tanam yang digunakan adalah agroforestry sederhana terutama awal pertumbuhan sebagai wujud usaha optimalisasi lahan. Penelitian ini bertujuan mengetahui pertumbuhan sengon umur 30 bulan dengan pola agroforestry dan komponen tanamannya. Data pertumbuhan yang diambil berupa tinggi, diameter dan komponen tanamannya. Data pertumbuhan yang diperoleh diuji T. Hasil penelitian uji T menunjukkan pola agroforestry lebih baik dibandingkan monokultur untuk tinggi rata-rata 1238,09cm sedangkan diameter rata-rata 10,9167cm. Komponen tanamannya tahun pertama meliputi Tanaman Pokok Sengon dengan tanaman tumpangsari ubikayu, Lombok, Kimpul, tomat, Jagung, Pepaya dan tahun kedua,ketiga sengon, kimpul, pepaya.
Peningkatan Kualitas Ketahanan Air Kayu Lapis dengan Perlakuan Pelapisan Permukaan Sushardi; Woesono, Hastanto Bowo; Hadi, Didik Surya; Suwadji, Siman; Damayanty, Dhewy; Wardana, Wisnu
Proceedings Series on Physical & Formal Sciences Vol. 8 (2025): Prosiding Seminar Nasional Fakultas Pertanian dan Perikanan
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v8i.1492

Abstract

Kayu lapis memiliki banyak keunggulan, seperti kekuatan struktural yang baik dan harga yang relatif terjangkau. Namun, salah satu kelemahan utamanya adalah kemampuan menyerap air yang dapat menyebabkan pengembangan ketebalan yang tinggi. Salah satu solusi untuk mengatasi permasalahan tersebut dengan perlakuan pelapisan permukaan. Penelitian bertujuan untuk mengetahui peningkatan kualitas kayu lapis dengan perlakuan pelapisan permukaan terhadap ketahanan air. Penelitian menggunakan rancangan acak lenkap dengan uji lanjut Tukey. Faktor yang digunakan terdiri kayu lapis 3, 5 dan 7 lapis dan perlakuan pelapisan permukaan dengan cat. Parameter yang diamati adalah kadar air, kerapatan, absorbsi dan pengembangan tebal. Hasil penelitian menunjukkan kayu lapis 3, 5 dan 7 lapis dengan perlakuan pelapisan permukaan berbeda nyata terhadap absorpsi air dan pengembangan tebal. Jenis produk dan perlakuan pelapisan permukaan pengembangan tebal yang optimal pada kayu lapis 3 lapis perlakuan pelapisan permukaan 1,45%, sedangkan absorbsi yang optimal 40,66% kayu lapis 5 lapis. Nilai rata-rata kadar air 11,24%-12,07%, kerapatan 0,35%-0,41%, absorbsi 52,14 - 84,93 % dan pengembangan tebal 2,18%-5,56%.
KAJIAN DIAMETER - PERSENTASE KAYU TERAS TERHADAP KUALITAS KAYU JATI (Tectona grandis Linn. F) DARI HUTAN RAKYAT GUNUNG KIDUL Woesono, Hastanto Bowo
Jurnal Wana Tropika Vol 1 No 1 (2011)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Abstract

The research is aim to determine of influence diameter and percentage heartwood to physical and mechanical of teakwood properties. This research uses wood diameter factor, which comprises 3 levels of 15-21 cm, 22-28 cm and 29-35 cm and the percentage of heartwood that comprises 3 levels of 25-45%, 45-65% and 65-85%. These factors were then designed a randomized complete with factorial pattern. Observed parameters are the physical properties of wood (moisture content, specific gravity, and dimensional changes) and the mechanical properties of wood (static bending strength, compression strength parallel to grain, compression strength perpendicular to grain and shear strength). The result of the research shows that diameters factor affect significantly on air dry moisture content, longitudinal shrinkage from air dry to oven dry condition, Modulus of Elasticity (MOE) and compression strength parallel to grain. The percentage of heartwood factor affects very significantly on moisture content, tangential swelling from air dry to wet condition and Modulus of Elasticity. The interaction factor between diameters and percentage of heartwood also affects very significantly on specific gravity and shear strength. The rate of air dry moisture content is 13.88%; specific gravity is 0.65; MOE is 108.13 (1000kg/cm2); MOR is 1243.83 kg/cm2; compression strength parallel to grain is 569.41 kg/cm2; compression strength perpendicular to grain is 122.80 kg/cm2; and shear strength is 79,1602 kg/cm2. The result of the research show also that wood has the highest diameters is not always the best of quality (physical and mechanical properties) but, the highest percentage of heartwood to trend has the better teakwood quality specially physical properties. Key Words : diameters, the percentage of heartwood, community forest teakwood quality
PENGARUH TEMPERATUR DAN PENAMBAHAN METANOL PADA PROSES ESTERIFIKASI - TRANSESTERIFIKASI TERHADAP SIFAT-SIFAT MINYAK NYAMPLUNG Woesono, Hastanto Bowo; Webliana, Kornelia
Jurnal Wana Tropika Vol 1 No 2 (2011)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Abstract

The problem which has to be solved when using nyamplung oil (Calophyllum inophyllum) as an alternative fuel is the excessive content of free fatty acid in the oil. One way of reducing the free fatty acid in the oil is by esterification and tranesterification process. Hence, the research is conducted to identify the effect of temperature and methanol addition on the esterification and transesterification processes on the nature of nyampung oil and to assess the composing component of nyamplung oil. The research was conducted in the laboratory of Forest Yield Technology and central laboratorium of INSTIPER. The steps included extraction, deguming, esterification I, esterification II and transesterification with the temperature var iation of 60° C, 80° C, and 100° C and the mol comparison of nyamplung oil of 4:1, 5:1 and 6:1, and the examined parameters were water content, viscosity, acid level, soap level, free fatty acid content and iod level. The result indicated that the temperature treatment and methanol addition significantly affected the nature of nyamplung oil after the tranesterification. The analysis of nyamplung oil nature after the esterification I and esterification II indicated that the water contents were 0.38 and 0.21 %, the densities were 0.9630 and 0.9325 g/ml, the viscosities were 110 and 74.5 cP, the acid levels were 58.6893 and 31, 4359 KOH/g. the contents of free fatty acid were 29.5016 and 15.8017, the soaping levels were 192, 4127 dan 180, 2165 mg KOH/g, the iod levels were 68.7259 and 65. 9123 mg/g with the appearance of esterification I of dark and aqueous and esterification 11 reddish and aqueous. the nature of nyamplung oil after the transesterification process was that the water content was 0.1501%, the density was 0.8832 Wml, the viscosity was 51.1296 eP, the acid level was 9.8935 KOH/g, the free fatty acid content was 5.0168 %, the soaping level was 172.9321 KOH/g, the iold level was iod 77.4985 mg/g, with the appearance of yellow and aqueous. Keywords: Temperature, methanol comparison, transesterification process, nyamplung oil properties
Studi Budidaya Tanaman Herbal pada Hutan Rakyat di Kecamatan Samigaluh, Kabupaten Kulonprogo, Yogyakarta Prijono, Agus; Woesono, Hastanto Bowo
Jurnal Wana Tropika Vol 2 No 2 (2012)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Kajian Kualitas Minyak Kayu Putih Hasil Perlakuan Bahan Baku dan Waktu Penyulingan Hadi, Didik Surya; Woesono, Hastanto Bowo
Jurnal Wana Tropika Vol 3 No 1 (2013)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Estimasi Cadangan Karbon yang Tersimpan di Hutan Rakyat Gunung Kidul Woesono, Hastanto Bowo; Herin, Maria C.P
Jurnal Wana Tropika Vol 4 No 1 (2014)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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PENGARUH SUHU DAN LAMA WAKTU TAHAPAN ESTERIFIKASI TERHADAP SIFAT FISIK DAN KIMIA MINYAK NYAMPLUNG (Callophylum inophyllum Oil) Woesono, Hastanto Bowo
Jurnal Wana Tropika Vol 4 No 2 (2014)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Co-Authors ., Rawana Agus Prijono Budi Raharjo Damayanty, Dhewy Falah, M. Darul Gaol, Santo Wibowo Lumban Hadi, Didik Surya Herin, Maria C.P Kusumaningsih, Karti Rahayu Nofriansyah, Wahyu Nugroho, Yunianto Hargo Pratiwi, Lufitasari Indah Pujasa, Dwita Purwanto, Muhammad Amir Rawana Saputro, Setiaji Heri Sentot Purboseno Suhartati, Tatik Supriyanto, Gani Sushardi Suwadji, Siman Webliana, Kornelia Wisnu Wardana, Wisnu