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All Journal Jurnal Teknologi Industri Pertanian Communications in Science and Technology
Faramitha, Yora
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Agriculture, Biological Sciences & Forestry Engineering Industrial & Manufacturing Engineering

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Fabrication of glutathione-modified gold nanoparticles as 3-chloropropane-1,2-diol sensor Faramitha, Yora; Barori, Fadhlurrahman Rafi; Dimawarnita, Firda; Siswanto; Aqoma, Havid; Nugraha, Adam F; Ferdiansyah, Alfian
Communications in Science and Technology Vol 8 No 1 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.1.2023.1167

Abstract

Refined palm oil products may contain a harmful substance called as 3-monochloropropane-1,2-diol (3-MCPD), which can potentially be carcinogenic if consumed in excess. The determination of 3-MCPD depends on the sophisticated machine and highly skilled technicians but it is time-consuming. A simple method that proposes rapid detection remains a challenge. Hence, this research aims to develop a colorimetric-based rapid detection sensor using gold nanoparticles functionalized with a ligand, glutathione (GSH) to be bound to 3-MCPD. Varied concentrations of GSH were evaluated to obtain stable GSH-AuNPs. The characterization results showed that the composition of the stable GSH-AuNPs has been achieved by 250 µL of 0.02 M GSH addition. A stable GSH-AuNPs was ruby red with surface plasmon resonance (SPR) band at 520 nm and an average nanoparticle size of 30 nm. The indication for detection of 3-MCPD was marked by the decrease in the absorbance intensity. Thus, GSH-AuNPs have potential to be developed for the 3-MCPD sensor application.
DELIGNIFIKASI TANDAN KOSONG KELAPA SAWIT (TKKS) DENGAN NaOH TERHADAP KUALITAS PUPUK ORGANIK CAIR Aulia, Winda Dwi; Permana, Asep Tata; Dimawarnita, Firda; Faramitha, Yora
Jurnal Teknologi Industri Pertanian Vol. 34 No. 1 (2024): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2024.34.1.47

Abstract

Empty palm oil bunches (EFB) are the largest solid waste produced in every processing of palm oil and need to be utilized so as not to pollute the environment. One effort that can be made is to process EFB into liquid fertilizer. However, the high lignin content in EFB makes it difficult for this waste to decompose naturally. Therefore, efforts need to be made to reduce lignin levels in EFB with a delignification process for two hours at a temperature of 90 oC with 12% NaOH solution. The aim of this research was to evaluate the effect of delignification on the quality of liquid fertilizer (N, P, K, Ca, Mg, S, fulvic acid, C/N ratio, and pH). This study used a completely randomized design (CRD) with four treatments and five replications. P1: Non-delignified EFB, P2: P1 + cow urine, P3: delignified EFB, and P4: P3 + cow urine. Liquid fertilizer was made using a fermentation method for 21 days. The research results showed that delignification treatment was able to increase the presence of calcium and magnesium in liquid fertilizer. The combination of delignification with the addition of cow urine increases the availability of fulvic acid in liquid fertilizer. Keywords: empty palm oil bunches, lignin, nutrients, waste
SYNTHESIS OF RESIDUAL OIL FROM SPENT BLEACHING EARTH (SBE) INTO BIODIESEL USING MICROWAVE REACTOR Prakoso, Haryo Tejo; Mawardanti, Azzahra Salsabila Syifa; Maftuhah, Azizatul; Dimawarnita, Firda; Faramitha, Yora; Poerwadi, Bambang
Jurnal Teknologi Industri Pertanian Vol. 34 No. 2 (2024): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2024.34.2.185

Abstract

Spent bleaching earth (SBE) is a waste from the crude palm oil CPO refining process which contains high oil content, around 20-30%. There are several methods to reduce SBE oil content, one of which is the solvent extraction method. SBE residual oil can be utilized as a raw material for biodiesel. This research aims to determine the mass ratio of SBE and solvent, the optimal temperature for extracting residual oil from SBE, and the potential of residual oil from SBE to be used as biodiesel using a microwave reactor. Residual oil extraction was carried out at varying mass ratios of SBE and solvent (1:2, 1:4, and 1:6) and varying temperatures (26, 40, and 50°C). The treated residual oil was esterified and subjected to transesterification reaction with 15% methanol and 1% KOH for 10 minutes at 60°C using a microwave reactor. The optimal extraction result for residual oil was at a 1:4 ratio and 26°C with a yield of 19.12%. There is also an increase in surface area in deoiled-SBE. The conversion of residual oil from SBE into biodiesel yielded 33.53% with a conversion value of 45.28% and a FAME content of 92.97%. The characteristics of the produced biodiesel meet the Indonesian National Standard (SNI) for biodiesel with density of 0.8674 g/cm3 and viscosity of 5.69 mm2/s. Keywords: extraction, fatty acid, transesterification, yield
Co-Authors Alfian Ferdiansyah Aqoma, Havid Aulia, Winda Dwi Bambang Poerwadi Barori, Fadhlurrahman Rafi Dimawarnita, Firda Maftuhah, Azizatul Mawardanti, Azzahra Salsabila Syifa Nugraha, Adam F Permana, Asep Tata PRAKOSO, Haryo Tejo Siswanto