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All Journal Jurnal Penelitian Kelapa Sawit Scientific Contributions Oil and Gas

Meta Rivani

Indonesian Oil Palm Research Institute

Author-ID : 3464657

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy

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KADAR DAN KOMPOSISI KIMIA MINYAK PADA BAGIAN-BAGIAN BUAH KELAPA SAWIT (Elaeis guineensis Jacq.) DARI DELAPAN VARIETAS PPKS Sujadi Sujadi; Hasrul Abdi Hasibuan; Meta Rivani; Abdul Razak Purba
Jurnal Penelitian Kelapa Sawit Vol 24 No 2 (2016): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.

KARAKTERISASI MINYAK SELAMA PEMATANGAN BUAH PADA TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) VARIETAS DxP SIMALUNGUN Sujadi Sujadi; Hasrul Abdi Hasibuan; Meta Rivani
Jurnal Penelitian Kelapa Sawit Vol 25 No 2 (2017): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

This research was conducted to study the changing levels of oil, kernel and water on the palm fruits, palm kernel oil content on the kernel, and chlorophyll, carotene and tocols (tocopherols & tocotrienols) content on oil from oil palm plants D × P Simalungun during ripening fruits for 0 to 24 weeks after reseptic (WAR). Fruits fertilized at 0 WAR containing 81% water, 0.5% oil and not containing the kernel. Water levels declined during ripening of fruits and at 20 – 24 WAR by 27 – 36%. Levels of oil rised during ripening fruits and increased rapidly after 17 WAR, maximum oil content (51.6%) was obtained at 22 WAR, which was the optimum time for harvesting the fruits. Kernel had not formed until 4 WAR and formed in 5 WAR (0.1%), the increase occurred in the 14 – 24 WAR by 4 – 5%. Changes in fatty acid shown by the total unsaturated fatty acids (polyunsaturated) decreased, while total saturated fatty acids increased. Changes in the main fatty acids were palmitic (C16:0), linoleic (C18:2), oleic (C18:1), linolenic acid (C18:3) and stearic (C18:0). Changes in fatty acids also cause changed of iodine value. Carotene had been established at 0 WAR (73 ppm) and then continue rised to 12 MSR reach 1,301 ppm and decreased during fruit ripening at 20 – 24 WAR (703 – 598 ppm). Tocols levels continue rised and a drastic improvement occurred at 20 WAR (700.3 ppm from 353 ppm at 19 WAR). Chlorophyll content increased at 0 – 16 WAR (1.7 to 20.9 ppm), and then decreased at 22 – 24 WAR (1.1 to 2.1 ppm). Palm kernel oil content in the kernel at 7 WAR amounted to 56.2% and increased to 15 WAR (56.2 to 68.7%) but decreased at 20 – 24 WAR (54.0 to 59.9%).

Dual-Waste Valorization: Sustainable Biodiesel Production from High-FFA Sludge Palm Oil Using Silica-Rich Water Treatment Sludge as A Low-Cost Catalyst Support M. Anshari; Meta Rivani; Muhammad Erlangga Habibi Nasution; Muhammad Ansori Nasution; Tubagus Rayyan Fitra Sinuhaji
Scientific Contributions Oil and Gas Vol 49 No 2 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i2.2051

To address feedstock costs and environmental sustainability, this study employed a dual-waste valorization strategy by converting high-free fatty acid (FFA) sludge palm oil (SPO) into biodiesel using silica-rich water treatment sludge from PDAM as a low-cost support for a heterogeneous K2O/SiO2 catalyst. Due to the high initial acidity of SPO, a two-step process was used: acid esterification to reduce FFA levels below 2%, followed by alkaline transesterification. Optimization of the reaction parameters identified the ideal conditions as 6% catalyst loading, a 15:1 methanol-to-oil molar ratio, and a 2-hour reaction time at 63°C. Under these conditions, the process achieved a biodiesel yield of 70.43% with a high methyl ester purity of 98.01%. The produced biodiesel met the SNI 7182:2015 quality standards for density and acid number. Although the catalyst demonstrated stability over two consecutive cycles, its activity declined in the third cycle due to active-site leaching. This work confirms the viability of integrating industrial and municipal waste streams for sustainable and cost-effective bioenergy production.

Co-Authors Abdul Razak Purba Hasrul Abdi Hasibuan M. Anshari Muhammad Ansori Nasution Muhammad Erlangga Habibi Nasution Sujadi Sujadi Tubagus Rayyan Fitra Sinuhaji

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