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All Journal Indonesian Journal of Forestry Research Jurnal Penelitian Ekosistem Dipterokarpa Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Ilmu dan Teknologi Kayu Tropis Journal of Sylva Indonesiana Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Holistic: Journal of Tropical Agriculture Sciences Indonesian Journal of Forestry Research
Ganis Lukmandaru
Bagian Teknologi Hasil Hutan, Fakultas Kehutanan, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Engineering

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Chemical components of boiling-treated sengon (Paraserianthes falcataria (L.) I. C. Nielsen) wood Kurniawan, Fajar Arief; Syaharanie, Audyta Aurelia; Lukmandaru, Ganis
Wood Research Journal Vol 15, No 2 (2024): WOOD RESEARCH JOURNAL
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2024.15.2.55-62

Abstract

Sengon is a fast-growing wood species widely distributed on Java Island and commonly utilised for plywood production. It is frequently subjected to boiling treatment to reduce veneer defects, making it important to understand how this treatment affects its properties. This study investigated the effect of boiling treatment on the properties of sengon wood, involving three seven-year-old trees which were subjected to a control and an experimental treatment at 80℃ for ten hours. The wood specimens were divided into near-pith, middle, and near-bark sections. The specimens were powdered to a size of 40–60 mesh for successive extraction with n-hexane, methanol, and hot water. The total phenolic content was measured from the methanol-soluble extract, and the total polysaccharide content was measured from the hot-water-soluble extract. Chemical components such as holocellulose, alpha-cellulose, hemicellulose, lignin, ash, and silica contents, as well as pH values, were determined. T-test revealed that boiling treatment significantly reduced extractive levels (in ethanol-toluene and methanol solubles) but significantly increased total phenolic and polysaccharide contents. No significant effect was observed on cell wall chemical components. One-way ANOVA indicated that the radial direction significantly affected methanol-soluble extractive content, total phenolic content, and total polysaccharide content.
Unlocking the Economic Potential of Non-Timber Forest Products in Indonesia's Special Purpose Forest Zones Hermudananto, Hermudananto; Rofii, Muhammad Navis; Sunarta, Sigit; Lukmandaru, Ganis; Arfenda, Ferrieren Curassavica; Utami, Retno Nur; Triyogo, Ananto; Ratnaningrum, Yeni Widyana Nurchahyani; Supriyatno, Nunuk
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1166-1175

Abstract

This study explores the diversity of Non-Timber Forest Products (NTFPs) in the Forest Zone with Special Purpose (KHDTK) of Getas-Ngandong, East Java, Indonesia, with the aim of optimizing resource allocation, livelihood diversification, and biodiversity conservation in its planning and management. By conducting a six-month (May–October 2018) biophysical survey through direct observation, coupled with structured social surveys and interviews with key informants in adjacent community-managed forest area. We identified a wide range of NTFPs that are critical for sustainable forest management. Understanding the diversity and distribution of NTFPs is necessary to inform strategic interventions that enhance forest sustainability while supporting the economic resilience of surrounding communities. The findings reveal a rich variety of NTFPs within the region, with agricultural and food crops such as corn, sugarcane, rice, and cassava prevalent inside forest areas, while fruits like mangoes and bananas dominate the surrounding non-forest areas. These insights can serve as valuable inputs, such as integrating fruit tree cultivation into agroforestry zones to enhance income stability, for developing a KHDTK management plan that diversifies income sources, supports local livelihoods, and promotes sustainable forest management practices by balancing economic, ecological, and social benefits.   Keywords: Non-Timber Forest Products (NTFPs); Sustainable Forest Management; KHDTK Getas-Ngandong.
CHEMICAL AND ORGANOLEPTIC PROPERTIES OF BEKAI (Pycnarrhena tumefacta Miers) LEAVES FOR FLAVOURING AGENT (BIO-VETSIN) Maharani, Rizki; Fernandes, Andrian; Turjaman, Maman; Kuspradini, Harlinda; Lukmandaru, Ganis
Indonesian Journal of Forestry Research Vol. 7 No. 2 (2020): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2020.7.2.121-133

Abstract

The "tasty" cuisine tends to use chemical flavour agent containing monosodium glutamate (M.S.G.). M.S.G. utilizations, in long-term, may cause health problems, especially triggering cancer cells. Therefore necessary to introducing and increasing a natural flavouring agent to eliminate those health problem, such as bekai leaf. Bekai (Pycnarrhena tumefacta Miers) is familiar as a natural flavour agent (bio-vetsin) in cuisine for forest communities in Nyapa Indah Village, Berau, East Kalimantan, Indonesia. However, until now there has been no proper analysis support for widespread utilization of bekai leaf. This paper studies the presence of phytochemicals, antioxidant and GC MS analysis from bekai leaf extracts, as well as five hedonic classifications of organoleptic test, to reinforce the need for a better understanding of consumers reaction in terms of possible acceptance of additional bekai leaves applied in soup as bio-vetsin. Present study showed that the qualitative screening of phytochemical compounds in bekai leaves ethanolic extracts revealed presence of alkaloids, flavonoids, tannins and steroids. Antioxidants of bekai leaves using 2,2-diphenyl-1-picrylhydrazy (DPPH) method showed that concentrated extract has 80.1%, which predicted can improve immune for inhibitory action of cancer cells. GC MS analysis suspected that bekai leaf extract contained 5 (five) major compounds, i.e. oxirane dodecyl, gamma sitosterol, vitamin E (α tokoferol), 9.12-Octadecadienoic acid (Z,Z)- (natural linoleic acid), and 3-Tetradecanynoic acid (myristic acid). These chemical compound in related with their phytochemical were predicted to contained strong antioxidant activities and some of them commonly used as flavour agent in cuisine for some food industries.
Co-Authors Adi, Rian Palimirmo Ananto Triyogo Andrian Fernandes, Andrian Arfenda, Ferrieren Curassavica Arisandi, Rizki Denny Irawati Harliando, Bagus Praditya Hermudananto, Hermudananto Johanes Pramana Gentur Sutapa, Johanes Pramana Gentur Kasmudjo, Kasmudjo Kurniawan, Fajar Arief Maman Turjaman Masendra, Masendra Mastap, sushardi Muhammad Navis Rofii Noor Khomsah Kartikawati, Noor Khomsah Nunuk Supriyatno Pratama, Ardhan Wira Purba, Brandon Aristo Verick Ragil Widyorini Ramadhani, Rafli Nur Ratnaningrum, Yeni Widyana Nurchahyani Retno Nur Utami, Retno Nur Rini Pujiarti Rizki Maharani Rohmatus Rizqy Kisna Yunanta, Rohmatus Rizqy Kisna Setiaji, Fajar Sigit Sunarta, Sigit Sri Nugroho Marsoem Sukadaryati Sukadaryati Syaharanie, Audyta Aurelia Syamsul Arifin Tibertius Agus Prayitno Tomy Listyanto Warahapsari, Ayu Widiyatno Yustinus Suranto