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Microcellulose From Pineapple Leaf Fiber as a PotentialSustainable Material: Extraction And Characterization Nawangsari, Putri; Fatra, Warman; Kusuma, Aryandi; Badri, Muftil; P.C1, Dedi Rosa; Masnur, Dedy
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4522

Abstract

Pineapple leaf fiber is consideredan agricultural waste during the harvesting process. Pineapple leaves are rich in cellulose, which made it applicable in many industrial applications. This study aims to extract and characterize microcellulose from pineapple leaf waste in Kampar district, Riau. Pineapple fibers were isolated by alkalization (5 % NaOH) at 70 ºC for 150 minutes, followed by bleaching treatment(3% H2O2) at 60°C for 60minutes. Microcellulosewascharacterized through various techniques, namely chemical composition analysis, Fourier transform analysis (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (DT/TGA). The results reveal that the extractedmicrocellulose has significantcellulose content (72.45%) with a crystallinity index of 73.48%. The FTIR spectra of microcellulose indicatethat alkalization and bleaching treatments removed lignin and hemicellulose in varying degrees. Moreover, the extracted microcelluloseshows high thermal stability, the maximum decompositionoccurredat 347 ºC (weight residue 16.37%).Pineappleleaf fiber in Kampar district, Riau, can be a source of microcellulose as a renewable, eco-friendly, and sustainable material for future industrial applications. 
Pembuatan Media Informasi Pintar Berbasis Smart Tv Dan Raspberry Untuk Masjid Nur Ikhlas Di Desa Buluh Cina, Kampar Kaspul Anuar; Dedi Rosa Putra Cupu; Warman Fatra; Syafri Syafri; Dedy Masnur; Putri Nawangsari; Nazaruddin Nazaruddin; Dian Oktary
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 2: BATOBO: Desember 2023
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.1.2.64-71

Abstract

Kegiatan pengabdian ini dilaksanakan sesuai dengan usulan Perangkat Desa Buluh Cina yang menginginkan adanya media informasi pintar dengan display berupa smart tv pada masjid Nur Ikhlas yang posisinya dekat dengan lokasi objek wisata desa. Masjid ini sering digunakan oleh wisatawan untuk melaksanakan ibadah shalat. Kegiatan pengabdian dimulai dengan mempersiapkan alat dan bahan berupa raspberry, modul RTC, kabel HDMI, TV LED dan power adaptor. Tahapan kegiatan dilakukan dengan menginstal sistem operasi pada memory card yang dilanjutkan dengan pembuatan tampilan media informasi menggunakan bahasa HTML dan CSS. Tampilan media informasi dibuat semenarik mungkin untuk menampilkan informasi yang diinginkan. Proses berikutnya yang dilakukan yaitu mengkonfigurasi raspberry pi dan installasi web server ke dalam raspberry pi. Hasil pembuatan media ini selanjutnya dipasang di lokasi pengadian. Berdasarkan evaluasi yang dilakukan, media informasi pintar ini sangat membantu pengurus masjid dalam menampilkan informasi penting seperti rencana kegiatan, jadwal shalat, laporan keuangan dan lain lain.
Efektivitas Syzygium Polyanthum sebagai Inhibitor Korosi AISI 1037 pada Media Air Gambut Masnur, Dedy; Fatra, Warman; Nawangsari, Putri; Hadi, Syafwan
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11314

Abstract

Corrosion of carbon steel in peat water environments is a critical issue due to the acidic nature and high content of organic acids in the medium. This study investigates the corrosion rate and inhibition efficiency of Syzygium polyanthum (bay leaf) extract as a natural corrosion inhibitor for AISI 1037 carbon steel in peat water. The extract was prepared using a maceration method followed by solvent removal with a rotary evaporator. Steel specimens were immersed in peat water without inhibitor and with inhibitor mass concentrations of 3%, 6%, and 9% (v/v) for 28 days. Corrosion rates were determined using the weight loss method, supported by visual surface analysis. The results indicate that bay leaf extract significantly reduces the corrosion rate of AISI 1037 steel. The highest inhibition efficiency of 38.83% was achieved at a concentration of 9% v/v, corresponding to a corrosion rate of 1.66 mpy. These findings demonstrate the potential of bay leaf extract as an environmentally friendly corrosion inhibitor for carbon steel in peat water environments.