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All Journal Reaktor Biology, Medicine, & Natural Product Chemistry
Ahmad Sapta Zuidar
University of lampung
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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OPTIMASI PRODUKSI PULP FORMACELL DARI TANDAN KOSONG KELAPA SAWIT (TKKS) DENGAN METODE PERMUKAAN RESPON Sri Hidayati; Ahmad Sapta Zuidar; Ahmad Fahreza
Reaktor Volume 16 No.4 Desember 2016
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.128 KB) | DOI: 10.14710/reaktor.16.4.161-171

Abstract

ABSTRACT Empty oil-palm bunches (EOPB) contains more enough cellulose so that it can be made as an alternative pulp production.  One of the process of pulp production which friendly environment is by using acetate acid and formic acid called by formacell process.  The aims of the research is to got optimation models of formic acid concentration, HCl concentration and cooking duration for the EFB pulp production.  The optimum result of the EOPB pulp production were 75% of cellulose, 8% of hemiselulosa, 10% of  lignin, and 80% of yield with the optimum concentration 20% of formic acid, 0,5% of HCl, and 2 hour of cooking duration.   Keyword : pulp formacell, EFB, RSM.   ABSTRAK Tandan kosong kelapa sawit (TKKS) mengandung kadar selulosa yang cukup tinggi sehingga dapat dijadikan sebagai bahan baku alternatif produksi pulp.  Salah satu proses produksi pulp ramah lingkungan yaitu dengan menggunakan campuran pelarut asam asetat dan asam formiat sebagai bahan pemasak yang disebut proses formacell.  Tujuan dari penelitian ini untuk mendapatkan model optimasi dari konsentrasi asam formiat, konsentrasi HCl dan lama pemasakan untuk produksi pulp TKKS.  Konsentrasi pemasakan optimum terjadi pada konsentrasi asam formiat 20%, konsentrasi HCl 0,5%, dan lama pemasakan selama 2 jam dengan hasil optimum untuk produksi pulp TKKS yaitu 75 % selulosa, 8 % hemiselulosa, 10% lignin, dan 80% rendemen.   Kata kunci: pulp formacell, TKKS, RSM.    
Application of Carbon Nanodots from Cocoa Husk Waste to Improve the Mechanical Properties of Cellulose-Carrageenan-Based Biodegradable Films Fitri Nuraini Fadila; Esa Ghanim Fadhallah; Ahmad Sapta Zuidar; Teguh Setiawan; Gustaf Triyoga; Jihan Allya Syahar; Hersan Pratama Ashari; Precillia Regitha; Fathan Khanifadin; Wulan Nur Aisyah; Dea Meranda; Zaskia Rahma Andini
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.1185-1191

Abstract

Biodegradable films made from natural materials such as cellulose and carrageenan are easily degradable but exhibit poor mechanical properties. Incorporating carbon nanodots (CDs) from cocoa husk waste has the potential to improve their mechanical properties. This study aimed to characterize CDs synthesized from cocoa husk waste and evaluate their mechanical properties of cellulose-carrageenan-based biodegradable films. The research stages include the isolation of cocoa husk cellulose, CDs synthesis, CDs characterization, biodegradable film preparation, and characterization of the mechanical properties of biodegradable films. The experimental design used was a Completely Randomized Design (CRD) with the treatment factor of CDs addition at six levels (0%, 1%, 3%, 5%, 7%, 9%) with three replicates. The results showed that the average size of cocoa husk CDs was 997 nm, and the absorbance peak was detected at 298 nm, validating that the CDs had been successfully synthesized with blue light emission. Incorporating CDs significantly affected the mechanical properties of the biodegradable film. Biodegradable cellulose-carrageenan-based films with the addition of CDs from cocoa husks had a thickness of 0.35–0.64 mm, tensile strength of 2.94–4.20 MPa, elongation of 36.51–63.28%, and elasticity of 6.00–9.45 MPa. The tensile strength and elongation values meet the JIS Z 1707 standard. Higher concentrations of CDs significantly improved tensile strength and elasticity, while reducing the thickness and elongation.
Co-Authors Ahmad Fahreza Dea Meranda Esa Ghanim Fadhallah Fathan Khanifadin Fitri Nuraini Fadila Gustaf Triyoga Hersan Pratama Ashari Jihan Allya Syahar Precillia Regitha Sri Hidayati Teguh Setiawan Wulan Nur Aisyah Zaskia Rahma Andini