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Influence of pH, Shaked Medium, and Addition of Sawdust on the Growth of Xylaria sp. Achmad .; Elis Nina Herliyana; Eti Artiningsih Octaviani
Jurnal Silvikultur Tropika Vol. 4 No. 2 (2013): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.4.2.%p

Fungi is natural resources that has many potencies to be developed to fill the human’s need. One of useful fungal species is Xylaria sp. as a decomposer which play an important role in the process of returning nutrients in to the soil. This reasearch aims to examine the effect of medium pH, medium movement, and sawdust of Sengon (Falcataria molucana) & Afrika wood (Maesopsis eminii) addition in medium on the growth of Xylaria sp. Each experiment used Completely Randomized Design with 3 replications. The result showed that best Xylaria sp. colony on PDA attained at pH 8; at pH 2 the fungi did not grow. Highest mycelial dry weight of Xylaria sp. in PDB medium with pH treatment was achieved at pH 6. Highest mycelial dry weight of Xylaria sp. in PDB with shaking was achieved at a speed of 100 rpm. The addition of sawdust in MEA medium did not significantly affect the growth of mycelial diameter of Xylaria sp.Key words: africa wood, medium movement, pH, sengon, Xylaria sp

Potency of Biological Agent Trichoderma harzianum and Gliocladium sp. on Pathogenic Fungi Botryodiplodia sp. causes Dieback Disease of Jabon (Anthocephalus cadamba (Roxb.) Miq.) POTENSI Trichoderma harzianum DAN Gliocladium sp. SEBAGAI AGENS HAYATI Eti Artiningsih Octaviani; Achmad .; Elis Nina Herliyana
Jurnal Silvikultur Tropika Vol. 6 No. 1 (2015): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.6.1.%p

Botryodiplodia sp. is causes dieback disease of jabon (Anthocephalus cadamba (Roxb.) Miq). Dieback disease causes a decrease in the quality and economic value of jabon seedlings in the nursery. Research on control of the disease is still rare. Control of the disease is divided into three ways, namely chemical, physical, and biological. One biological control can be biological agents. Biological agents are used in this study is Trichoderma harzianum and Gliocladium sp. on in vitro test. The test results showed that T. harzianum antagonism with the direct method able to inhibit the growth of Botryodiplodia sp. with the average 52.53% and 35.99% respectively on PDA and Czapex Agar, while Gliocladium sp. able to inhibit the growth of Botryodiplodia sp. Average 46.46% and 28.51% respectively on the PDA and Czapex Agar for 7 days of observation. Results of antagonist test with indirect methods showed that the filtrate of T. harzianum and Gliocladium sp. has the ability to inhibit the growth of Botryodiplodia sp. at 13.42% and 10.25% PDB media significantly different from controls. T. harzianum and Gliocladium sp. have ability to inhibit the growth of Botryodiplodia sp. greatly.Key words : Botryodiplodia sp., Gliocladium sp., in vitro test, Trichoderma harzianum

Vegetation Analysis and Carbon Stock Estimation of Mangrove Island on Mangrove Ecotourism in Gebang Village, Lampung Eti Artiningsih Octaviani
JURNAL ILMU-ILMU KEHUTANAN Vol 6, No 2 (2022)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.6.2.22-29

Mangrove forests have an important role in reducing the effects of global warming. This study aims to analyze vegetation and estimate carbon stock in mangrove stands in the Mangrove Island of Petengoran Mangrove Ecotourism Area, Gebang Village, Lampung. The forest vegetation analysis method used is the plotted path method. Paths and plots were taken systematically with tree observation plots made measuring 20 m x 20 m. Carbon estimation was carried out by non-destructive sampling method using the allometric formula for Rhizophora apiculata log BBA= -1.315 + 2.614 log D. The results showed that the mangrove island zone was dominated by Rhizophora apiculata vegetation with a density of 325 ind/Ha. The research location has a silty clay loam soil texture with a temperature range of 25°C-32°C which is very suitable for the vegetation of R. apiculata. The estimated carbon stored in the vegetation was obtained from 46% of the standing biomass of R. apiculata, which was 86,283 tons C/Ha.KEYWORDSBiomass, Carbon, Mangroves, Petengoran, Vegetation

Shade Tress in Agroforestry Cultivation Systems as a Solution to Improve Environmental Quality and Welfare of Ulubelu Coffee Farmers Munawaroh, Khoryfatul; Octaviani, Eti Artiningsih; Sari, Nurika Arum; Murda, Rio Ardiansyah; Mulizar, Arif; Prasetya, Kukuh Diki
JURNAL ILMU-ILMU KEHUTANAN Vol 7, No 2 (2023)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.7.2.68-76

This research was based on the condition of the Ulubelu District area, which experienced a decrease in environmental quality and coffee yield productivity. Coffee plantations in Ulubelu District, Tanggamus have experienced a reduction in productivity over the last three years. This reduction in quality is due to the age of the less productive coffee plants (30-40 years) and the lack of shade trees. This study aims to determine the effect of shade trees on coffee productivity and land conditions in coffee agroforestry systems on farmers' land. This research was carried out to increase the productivity of coffee plantations economically and ecologically. The initial stage of this research is collecting secondary data on the application of agroforestry by coffee farmers in the Ulubelu area. The results showed that Ulubelu farmers had implemented agroforestry principles, but they are not optimal in terms of the percentage of shade trees and types of trees planted. Therefore, the recommendation is to plant shade trees of Indigofera sp. with the characteristics of deep roots and the leaves are used to feed cattle. Key words:agroforestry, shading trees, productivity, coffee plants, Ulubelu

Hybrid Biopellets Characterization of Gamal Wood (Gliricidia sepium) and Robusta Coffee Husk at Various Compositions Putri, Mangifera Indica Dhaifullah Wangun; Murda, Rio Ardiansyah; Maulana, Sena; Octaviani, Eti Artiningsih; Sari, Nurika Arum; Hasibuan, Mhd Muhajir; Aulia, Fauzan; Hidayat, Wahyu
Jurnal Sylva Lestari Vol. 12 No. 3 (2024): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i3.913

Biopellets from gamal wood (Gliricidia sepium) as a biomass energy resource could be an alternative to replace fossil fuels due to having met standards based on moisture content, ash content, fixed carbon, calorific value, and density. Unfortunately, they still had high levels of volatile matter. Robusta coffee husk was a material with high nitrogen content, which is suspected of being able to bind aromatic substances in volatile organic compounds. This study aims to evaluate the quality of biopellets and determine the optimum composition of the biopellets from gamal wood and coffee husk. The blended composition of gamal wood and coffee husk biopellets studied were 100:0, 75:25, 50:50, 25:75, and 0:100. The biopellets were manufactured using the material size of 40-60 mesh with a pressure of 173.51 MPa. The best biopellet was produced in the composition of 75% gamal wood and 25% coffee husk, with a density of 0.85 g/cm3, moisture content of 8.03%, ash content of 3.92%, volatile substances of 78.01%, fixed carbon of 18.07%, and calorific value of 4,176 cal/g. The biopellet quality met the standards of SNI 8021:2014 and EN 14061-2, except for ash content. Adding coffee husk reduced gamal wood biopellet’s volatile matter, increasing the fixed carbon and density of gamal wood biopellets. Keywords: alkali immersion, bamboo, bio-composite, oriented strand board, pre-treatment

Shade Tress in Agroforestry Cultivation Systems as a Solution to Improve Environmental Quality and Welfare of Ulubelu Coffee Farmers Khoryfatul Munawaroh; Eti Artiningsih Octaviani; Nurika Arum Sari; Rio Ardiansyah Murda; Arif Mulizar; Kukuh Diki Prasetya
Jurnal Ilmu Ilmu Kehutanan Vol. 7 No. 2 (2023)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.7.2.68-76

This research was based on the condition of the Ulubelu District area, which experienced a decrease in environmental quality and coffee yield productivity. Coffee plantations in Ulubelu District, Tanggamus have experienced a reduction in productivity over the last three years. This reduction in quality is due to the age of the less productive coffee plants (30-40 years) and the lack of shade trees. This study aims to determine the effect of shade trees on coffee productivity and land conditions in coffee agroforestry systems on farmers' land. This research was carried out to increase the productivity of coffee plantations economically and ecologically. The initial stage of this research is collecting secondary data on the application of agroforestry by coffee farmers in the Ulubelu area. The results showed that Ulubelu farmers had implemented agroforestry principles, but they are not optimal in terms of the percentage of shade trees and types of trees planted. Therefore, the recommendation is to plant shade trees of Indigofera sp. with the characteristics of deep roots and the leaves are used to feed cattle

Vegetation Analysis and Carbon Stock Estimation of Mangrove Island on Mangrove Ecotourism in Gebang Village, Lampung Eti Artiningsih Octaviani; Nurika Arum Sari
Jurnal Ilmu Ilmu Kehutanan Vol. 6 No. 2 (2022)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.6.2.22-29

Mangrove forests have an important role in reducing the effects of global warming. This study aims to analyze vegetation and estimate carbon stock in mangrove stands in the Mangrove Island of Petengoran Mangrove Ecotourism Area, Gebang Village, Lampung. The forest vegetation analysis method used is the plotted path method. Paths and plots were taken systematically with tree observation plots made measuring 20 m x 20 m. Carbon estimation was carried out by non-destructive sampling method using the allometric formula for Rhizophora apiculata log BBA= -1.315 + 2.614 log D. The results showed that the mangrove island zone was dominated by Rhizophora apiculata vegetation with a density of 325 ind/Ha. The research location has a silty clay loam soil texture with a temperature range of 25°C-32°C which is very suitable for the vegetation of R. apiculata. The estimated carbon stored in the vegetation was obtained from 46% of the standing biomass of R. apiculata, which was 86,283 tons C/Ha.

Peningkatan Sarana Pemanduan Wisata dalam Peningkatan Daya Tarik Wisata Desa Way Kalam, Kabupaten Lampung Selatan Komariah, Rahma Nur; Octaviani, Eti Artiningsih; Hasibuan, Mhd Muhajir; Afif Alfajrin, Achmad Chalid; Setiawa, Tirta
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 6 No. 3 (2025): Edisi Juli - September
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v6i3.6575

Way Kalam merupakan desa penyangga Hutan Lindung Gunung Rajabasa (HLGR), sebagai hutan hujan dataran rendah paling selatan Sumatera yang ditempati beragam jenis flora dan fauna termasuk jenis langka dan dilindungi. Kawasan desa Way Kalam memiliki potensi besar dan letak yang sangat strategis sebagai objek wisata karena letaknya yang tidak jauh dari ibukota provinsi didukung oleh akses mudah, serta tidak adanya pesaing sejenis pada radius 50 km. Namun, permasalahan sosial kehutanan seperti perburuan, dan pengambilan sumberdaya lainnya beberapa kali terjadi di dalam kawasan. Hal ini terjadi karena rendahnya manfaat ekonomi yang dirasakan secara langsung dari wisata di desa penyangga HLGR. Salah satu cara meningkatkan daya tarik adalah dengan peningkatan sarana pemanduan ekowisata. Potensi atraksi wisata dari aspek satwaliar yang ditawarkan di lokasi sangat besar. Oleh karena itu, solusi yang ditawarkan tim berupa peta pemanduan persebaran satwa liar yang dapat diakses oleh pengunjung sehingga meningkatkan daya tarik wisata yang ditawarkan kepada pengunjung.

Mangroves as Carbon Sequesterers: Diversity and Carbon Estimation Study in Pantai Mekar Village, Muara Gembong District, Bekasi Regency Amin, Septian Faris Al; Pangestu, Agung Yoga; Dharma, Yossi; Sari, Nurika Arum; Maulidia, Oktarina; Octaviani, Eti Artiningsih; Anita, Vilda Puji Dini; Hasibuan, Mhd Muhajir; Dimyati, Ahmad Iqbal Wahid; Rahmasari, Shinta Nur; Agus, Ferri; Salimah, Wardah
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8618

Mangrove forests are important for storing carbon dioxide (CO2) and reducing the effects of climate change. Indonesia possesses 20% of the global mangrove cover, which substantially impacts global climate mitigation efforts. However, understanding of the diversity of plant species in mangrove forests remains limited, as evidenced by the high rate of conversion of mangrove areas into aquaculture ponds, resulting in mangrove degradation. Our research in Pantai Mekar Village was conducted to augment information on mangrove plant species diversity in Indonesia, specifically in Bekasi Regency. Mangrove vegetation data were collected in Pantai Mekar Village, Muara Gembong, Bekasi from 8 to 12 July 2019. Data were collected using 2x2 m (seedlings and understory), 5x5 m (saplings), and 10x10 m (trees) plots. Importance value index (INP), Shannon-Wiener species diversity, evenness, richness, and carbon stock estimation were utilized to analyze the data. The study documented 21 species from 15 families. Species from the Acanthaceae family were predominant in the study site. Avicennia alba was the species with the largest biomass and carbon content. The estimated biomass contained in Mekar Beach is 380.42 tonnes/Ha with carbon sequestration of 190.21/Ha.

SPECTROSCOPIC INSIGHTS AND PHYSICOCHEMICAL PROPERTIES OF DEEP EUTECTIC SOLVENTS FORMED FROM CHOLINE CHLORIDE AND ORGANIC HYDROGEN BOND DONORS Indah Puspita Sari; Eti Artiningsih Octaviani; Shefia Dhiya Khansa; Ganjar Fadillah
Analit : Analytical and Environmental Chemistry Vol. 9, No. 02 October (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v9i02.202

This study investigates the physicochemical properties and molecular insights of Deep Eutectic Solvents (DES) formed with choline chloride as the hydrogen bond acceptor (HBA) and various organic hydrogen bond donors (HBDs), such as citric acid, glycerol, and glycolic acid. DES were assessed for bioactive compound extraction using Fourier Transform Infrared (FTIR) spectroscopy to analyze hydrogen bonding interactions and by measuring viscosity, density, and water content. Results showed viscosity ranging from 100 to 300 mPa-s and density from 1.05 to 1.45 g/cm ³, depending on the specific HBD. DES formed with glycerol and sorbitol exhibited higher viscosity due to stronger hydrogen bonding, while DES with lactic acid and glycolic acid showed lower viscosity, enhancing fluidity. FTIR spectra revealed shifts in the O—H and C=O stretching bands, indicating complex hydrogen bonding networks. These findings highlight the potential of DES to optimize bioactive compound extraction and their application in the cosmetics industry.

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