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All Journal Reaktor Jurnal Penelitian Pertanian Terapan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Sri Hidayati
UNIVERSITY OF LAMPUNG
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Materials Science & Nanotechnology

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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.    
Studi Analisis Finansial Pendirian Industri Keripik Pisang di Provinsi Lampung Sri Hidayati; Neti Yuliana; Tanto Pratondo Utomo; Rio Cakaradinata
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1567

Abstract

This study aims to determine the analysis of the location of the establishment of a suitable banana chips industry in Lampung by using an exponential comparison method and the feasibility of financial analysis.. The research method uses observation, survey and interview techniques. To determine the location of the plant using the Exponential Comparison Method. The results showed that the suitable location was Ketapang sub-district in south Lampung regency with a value of 11129 and was declared financially feasible because it had a positive Net Present Value (NPV), the value of the Internal Rate of Return (IRR) was greater than the prevailing interest rate at present, the value of the Benefit/Cost (B/C) ratio is more than 1 and the payback period (payback period 1 year 11 months) is the maximum business feasibility at a 15% increase in raw materials per year.
Impact of High-Temperature Heating on the Chemical Stability and Sensory Quality of Red Palm Oil Sri Hidayati; Aulia Rahmawati; Erdi Suroso; Subeki Subeki; Tanto P. Utomo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.215-225

Abstract

Red palm oil (RPO) is known for its high carotenoid content, particularly β carotene and α-carotene, which provide significant provitamin A activity. However, it is susceptible to oxidation during frying and results in nutrient loss and quality degradation. This study investigates the effects of high temperatures and prolonged heating durations on the chemical and sensory properties of RPO. The experiment involved heating RPO at three different temperatures (140°C, 180°C, and 220°C) for durations ranging from 2 to 10 hours. Chemical analysis included peroxide values, free fatty acids, and changes in functional groups through Fourier Transform Infrared (FTIR) spectroscopy. Sensory evaluations focused on aroma and color alterations due to heating. Results showed that prolonged heating of RPO at high temperatures led to significant increase in peroxide values, and the formation of oxidation products, including aldehydes and ketones, which negatively impacted the sensory qualities. The oil darkened, and a burnt aroma developed, reducing overall sensory appeal. These findings provide new insights into the optimal frying conditions to preserve the nutritional and sensory qualities of RPO, particularly by minimizing heating duration and temperature. Keywords: Nutritional value, Prolonged heating, Red palm oil, Sensory attributes, Thermal oxidation.
Co-Authors Ahmad Fahreza Ahmad Sapta Zuidar Aulia Rahmawati Erdi Suroso Neti Yuliana Rio Cakaradinata Subeki Subeki Tanto Pratondo Utomo