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All Journal Agrointek Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Kreativitas PKM JOURNAL OF PEOPLE, FOREST AND ENVIRONMENT
Intan Fajar Suri
Jurusan Kehutanan, Fakultas Pertanian, Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Environmental Science Health Professions Medicine & Pharmacology Nursing Public Health

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Effects of Torrefaction Temperature on the Characteristics of Betung (Dendrocalamus asper) Bamboo Pellets Bagus Saputra; Karina Gracia Agatha Tambunan; Intan Fajar Suri; Indra Gumay Febryano; Dian Iswandaru; Wahyu Hidayat
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.339-353

Abstract

The objective of this study was to evaluate the effects of torrefaction temperature on the physical and mechanical properties of betung bamboo (Dendrocalamus asper) pellets. Torrefaction was conducted in an electric furnace at 200°C, 240°C, and 280°C for 50 minutes. The physical properties evaluated included color change, density, moisture content, water resistance, and water adsorption. The mechanical properties were also investigated by compressive strength test. The result showed that torrefaction affected the color properties of betung bamboo pellets with ∆E values of more than 12 or totally changed. The density and moisture content of torrefaction bamboo betung pellets decreased with increasing torrefaction temperature. The results also showed that the hydrophobic properties of the bamboo betung pellets improved with the increased of torrefaction temperature. The highest compressive strength value was obtained by bamboo betung pellets torrefied at 200°C and the values decreased with the increase of temperature. In conclusion, there were differences in the physical and mechanical properties of bamboo betung pellets that were torrefied at different temperatures. Torrefaction with an electric furnace effectively improved the quality of betung bamboo pellets. Keywords:   Bamboo betung, pellets, temperature, torrefaction
Perubahan sifat fisis dan mekanis pelet bambu andong (Gigantochloa pseudoarundinaceae) setelah perlakuan torefaksi Karina Gracia Agatha Tambunan; Bagus Saputra; Intan Fajar Suri; Indra Gumay Febryano; Afif Bintoro; Wahyu Hidayat
AGROINTEK Vol 17, No 1 (2023)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v17i1.14211

Abstract

Torrefaction has been well known to improve the properties of various biomass pellets. However, the study on torrefaction of andong bamboo pellet is still limited. This study aimed to evaluate the changes in the physical and mechanical properties of Andong bamboo (Gigantochloa pseudoarundinaceae) pellets resulting from torrefaction.  The pellets were torrefied at 200°C, 240°C, and 280°C using an electric furnace for 50 min.  The physical properties analyzed were color, moisture content, density, water adsorption, and resistance to water immersion.  A compressive strength test examined the mechanical property.  The results showed that the color of bamboo pellets torrefied at 200°C, 240°C, and 280°C were changed, showing overall color change (∆E*) values of more than 12. The lightness (L*) of the pellet remarkably decreased with the increase of torrefaction temperature. In other words, the pellet became darker with increasing temperature. The yellow/blue chromaticity (b*) was also decreased with increasing the torrefaction temperature. However, the red/green chromaticity (a*) increased at 200℃ but decreased at 240℃ and 280℃. Moisture content and pellet density decreased with increasing torrefaction temperature.  The pellets’ water adsorption decreased as the torrefaction temperatures increased at 200℃, 240℃, and 280℃.  The results also showed that the torrefied pellets were more resistant to water immersion than the control pellet as they could maintain their original form even after 24 h immersion test.  The compressive strength decreased as increasing the temperature. The torrefaction temperature affected and improved the properties of Andong bamboo pellets.
Effects of Temperature during Oil Heat Treatment on the Quality Improvement of Mindi (Melia azedarach) and Sengon (Falcataria moluccana) Woods Shalehudin Denny Ma’ruf; Samsul Bakri; Indra Gumay Febryano; Agus Setiawan; Agus Haryanto; Intan Fajar Suri; Wahyu Hidayat
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.255-267

Abstract

Fast growing wood has high potential in increasing numbers but has a low quality so that it requires modification to improve wood quality. Oil heat treatment (OHT) is one of a wood modification method using vegetable oil as a heat conducting medim. The objective of this study was to analyze the effect of temperature OHT on color change (ΔL*, Δa*, Δb*, and ΔE), physical properties (density, moisture content, water absorption, and weight changes), and the compressive strength of mindi (Melia adezarach) and sengon (Paraserianthes falcataria). OHT was conducted using 2 hours duration on temperature 180C, 200C, 220C, and 240C. The results showed that the effect of temperature on wood color inflicted an increase in the values of ΔL*, Δa*,Δb*, and ΔE on higher temperature of OHT. The effect of temperature on the physical properties of wood results in an increase on density at certain temperature and wood species as well as decreasing moisture content, water absorption, and weight changes of wood on higher temperature of OHT. The effect of temperature on mechanical properties of wood results in increasing compressive strength at certain temperatures and types of wood, but there is decrease compressive strength in the higher temperature of OHT.Keywords:   Color change, oil hot treatment, mechanical properties, physical properties
Teknologi Single Drum Kiln untuk Produksi Biochar Limbah Tongkol Jagung di Desa Bangun Sari, Pesawaran Wahyu Hidayat; Melya Riniarti; Rara Diantari; Mareli Talaumbanua; Intan Fajar Suri; Mia Putri Utami; Bagus Saputra; Muhammad Alfaridzi
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 6, No 10 (2023): Volume 6 No 10 2023
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v6i10.11731

Abstract

ABSTRAK Jagung (Zea mays) merupakan salah satu komoditas pertanian utama yang ditanam oleh para petani di Desa Bangun Sari, Pesawaran. Hasil dari budidaya tanaman jagung menghasilkan limbah biomassa berupa tongkol jagung yang jumlahnya cukup besar. Namun, sebagian besar dari limbah biomassa tongkol jagung ini belum dikelola dengan optimal di Desa Bangun Sari. Seiring waktu, limbah biomassa tongkol jagung ini hanya diabaikan dan dibakar, menyebabkan timbulnya isu lingkungan. Limbah biomassa tongkol jagung berpotensi untuk dikonversi menjadi biochar yang memiliki banyak manfaat termasuk sebagai bahan pembenah tanah (ameliorant). Kegiatan pengabdian kepada masyarakat ini menerapkan teknologi produksi biochar menggunakan single drum kiln karena mudah diaplikasikan dan biaya produksi relatif murah. Selain itu, petani juga didampingi dalam desain dan pengemasan produk biochar. Hasil evaluasi menunjukkan peningkatan signifikan dalam pengetahuan dan pemahaman peserta terkait produksi dan manfaat biochar. Produk biochar dikemas dalam dua bentuk yaitu yang sudah dihaluskan dan masih utuh. Kegiatan pengabdian kepada masyarakat ini berkontribusi dalam memanfaatkan limbah biomassa jagung menjadi produk bernilai ekonomi dan lingkungan yang bermanfaat. Kata Kunci: Biochar, Limbah Tongkol Jagung, Single Drum Kiln  ABSTRACT Corn (Zea mays) is one of the main agricultural commodities grown by farmers in Bangun Sari Village, Pesawaran. The corn plantation results in a significant amount of biomass waste in the form of corncobs. However, most of the corncob biomass waste has not been managed optimally in Bangun Sari Village. The corncob biomass waste is neglected and burned over time, causing environmental problems. Corncob biomass waste has the potential to be converted into biochar which has many benefits including as a soil amendment (ameliorant). This community service activity applies biochar production technology using a single drum kiln because it is easy to apply and production costs are relatively cheap. In addition, farmers are also assisted in the design and packaging of biochar products. The evaluation results showed a significant increase in participants' knowledge and understanding regarding the production and benefits of biochar. Biochar products are packaged in two forms, namely solid and powder forms. This community service activity contributes to utilizing corn biomass waste into useful economic and environmentally valuable products. Keywords : Biochar, Corncobs Waste, Single Drum Kiln
PREFERENSI KONSUMEN TERHADAP PERUBAHAN WARNA PAPAN PARTIKEL HASIL UKIR LASER CO2 Rasyidah Amany; Alim Fadila Rahman; Indra Gumay Febryano; Dian Iswandaru; Intan Fajar Suri; Wahyu Hidayat
JOURNAL OF PEOPLE, FOREST AND ENVIRONMENT Vol 2, No 2 (2022): November
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jopfe.v2i2.5991

Abstract

Tujuan dari penelitian ini adalah mengetahui dan menganalisis pengaruh daya laser CO2 terhadap warna dan preferensi konsumen dari produk papan parikel. Papan partikel tersebut dilakukan pengukiran dengan menggunakan daya laser 2,5 Watt, 5 Watt dan 7,5 Watt. Perubahan warna diuji dengan sistem CIE-LAB dan preferensi konsumen dilakukan dengan wawancara responden. Hasil pengujian kecerahan (L*), kromatisasi merah/hijau (a*) dan kromatisasi kuning/biru (b*) mengalami penurunan seiring dengan naiknya daya laser, sedangkan nilai perubahan warna (∆E*) memperoleh nilai > 12 yang berarti warna berubah total. Preferensi konsumen menunjukkan bahwa laser dengan daya laser 7,5 Watt memiliki hasil yang lebih besar, yang artinya lebih disukai oleh konsumen. Hasil tersebut memperoleh kesimpulan bahwa tingginya daya laser yang dipakai untuk pengukiran menyebabkan warna yang dihasilkan oleh produk papan partikel menjadi lebih gelap, hal tersebut menambah minat para konsumen dalam membeli produk.
Co-Authors Afif Bintoro Agus Haryanto Agus Setiawan Alim Fadila Rahman Bagus Saputra Bagus Saputra Bagus Saputra Dian Iswandaru Dian Iswandaru Indra Gumay Febryano Karina Gracia Agatha Tambunan Karina Gracia Agatha Tambunan Mareli Talaumbanua Melya Riniarti Mia Putri Utami Muhammad Alfaridzi Rara Diantari Rasyidah Amany Samsul Bakri Shalehudin Denny Ma’ruf Wahyu Hidayat