Browsing A - Forestry by Author "Amirta, Rudianto"
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Antioxidant and UV-Blocking properties of a Carboxymethyl Cellulose-Lignin Composite Film Produced from Oil Palm Empty Fruit Bunch
Haqiqi, Muhammad T.; Bankeeree, Wichanee; Lotrakul, Pongtharin; Pattananuwat, Prasit; Punnapayak, Hunsa; Ramadhan, Rico; Kobayashi, Takaomi; Amirta, Rudianto; Prasongsuk, Sehanat (American Chemical Society, 2021-03-29)Oil palm empty fruit bunch (EFB) pulp with the highest cellulose content of 83.42% was obtained from an optimized process of acid pretreatment (0.5% v/v H2SO4), alkaline extraction (15% w/w NaOH), and hydrogen peroxide ... -
Assessment of Wood Biomass Productivity from Anthocephalus macrophyllus Forest Plantation for Energy Production
Mukhdlor, Ahmad; Haqiqi, Muhammad Taufiq; Tirkaamiana, Muhammad Taufan; Suwinarti, Wiwin; Amirta, Rudianto (Atlantis Press, 2021-04-10)Antocephalus macrophyllus is one of the fast-growing species widely planted in an industrial forest plantation in Indonesia. Since its cultivation has been mainly expanded, the interest to explore A. macrophyllus wood for ... -
Efektivitas Perlakuan Awal Alkali dan Hidrotermal Terhadap Proses Delignifikasi, Potensi Gula Reduksi dan Produksi Etanol Teoritis dari Kayu Sambung Nyawa (Vernonia amygdalina Delile)
Amirta, Rudianto (ULIN: Jurnal Hutan Tropis, 2022-12)Vernonia amygdalina merupakan salah satu jenis tanaman Short Rotation Coppice (SRC) atau trubusan yang secara alami dapat melakukan proses regenerasi setelah melalui proses pemangkasan. Selain itu juga sebagai bahan baku ... -
Phytochemical screening and antioxidant activity of wild mushrooms growing in tropical regions
Herawati, Elisa; Ramadhan, Rico; Ariyani, Farida; Marjenah; Kusuma, Irawan Wijaya; Suwinarti, Wiwin; Mardji, Djumali; Amirta, Rudianto; Arung, Enos Tangke (BIODIVERSITAS, Universitas Negeri Sebelas Maret, 2021-11)This study aims to determine the presence of secondary metabolites which generally have bioactivity that is antioxidant with phytochemical tests and antioxidant tests in Auricularia auricula, Schyzophyllum commune, Microporus ... -
Pyrolysis-Gc/Ms Analysis of Fast Growing Wood Macaranga Species
Subagyono, R.R. Dirgarini J.N.; Qi, Ying; Chaffee, Alan L.; Amirta, Rudianto; Marshall, Marc (Universitas Pendidikan Indonesian, 2021-02-04)Py-GC/MS analysis of six different species of fast growing Macaranga wood has been studied. Flash pyrolysis was conducted at different temperatures (250-850 oC) under a flow of helium followed by GC/MS analysis of the ... -
Tropical secondary forest of East Kalimantan, Indonesia: diversity of plant species and its biomass potency for sustainable green energy production
Yuliansyah, Yuliansyah; Septia, Elis; Haqiqi, Muhammad Taufiq; Mujiasih, Dewi; Setiawan, Krisna Adib; Sekedang, Muhammad Afif; Sari, Nur Maulida; Herawati, Elisa; Saparwadi, Saparwadi; Angi, Eddy Mangopo; Ramadhan, Rico; Rujehan, Rujehan; Suwinarti, Wiwin; Amirta, Rudianto (3M International, 2021-07-27)In this paper, an attempt was made to find out the diversity, productivity and suitability of plant species in the secondary forests of East Kalimantan, Indonesia which has the potential to be used as high-quality feedstock ...