Muhammad Edwin Syahputra Lubis
Pusat Penelitian Kelapa Sawit

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DINAMIKA AIR DAN FASE-FASE PERKEMBANGAN PEMBUNGAAN PENENTU PRODUKTIVITAS KELAPA SAWIT Iman Yani Harahap; Muhammad Edwin Syahputra Lubis
Jurnal Penelitian Kelapa Sawit Vol 26 No 3 (2018): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1906.45 KB) | DOI: 10.22302/iopri.jur.jpks.v26i3.64

Abstract

To identify flowering development phases that most determines oil palm yield in relation to water dynamics, a research had been conducted at Indonesian Oil Palm Research Institute (IOPRI) experimental garden in Tandun, Riau. The variables observed were water parameters including rainfall, groundwater level, soil water content, and the rate of increase in capillary water at 0 – 200 cm soil depth. Rrelationship between water parameters and oil palm yield was analyzed using correlation statistics and multiple linear regression models. Analysis of multiple linear models was performed using stepwise regression techniques to select the most powerful parameters determining the relationship between independent and non-independent variables. MATLAB R2017b software was used for data processing. The study showed that phases of flower bunch development at certain time prior physiological maturity determined monthly oil palm yield. Critical phases affected oil palm yield were formation of flower crown, sex differentiation, appearence of flower buds, and ripening of fruit bunches. Compared to other flower developmental phases, the phase of sex differentiation of flowers that occurred 20 months before the fruit bunches were physiologically mature was the most critical phase in determining monthly yield of oil palm.
Pengaruh Komposisi Tandan Kosong Kelapa Sawit dan Bungkil Inti Kelapa Sawit sebagai Pakan Larva Lalat Tentara Hitam (Hermetia Illucens) Terhadap Perubahan Kandungan Asam Lemaknya Muhammad Edwin Syahputra Lubis; Brahmani Dewa Bajra; Ilmi Fadhilah Rizki; Manda Edy Mulyono; Bagus Giri Yudanto; Frisda Rimbun Panjaitan
Jurnal Penelitian Kelapa Sawit Vol 31 No 1 (2023): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v31i1.199

Abstract

Oil palm empty fruit bunches (OPEFB) and Palm Kernel Meal (PKM) are the most abundant by product in palm oil industry. However, the optimal utilization of both substrate has not yet discovered. This is due to high lignocellulosic content in OPEFB contains high lignocellulose content, on the other hand, PKM contains high crude protein content, High lignocellulose content of OPEFB causes this particular substrate to be hard to decompose, while lignin and crude protein content in PKM requires it to be pretreated prior to utilization. Black Soldier Fly (BSF, Hermetia illucens) is a natural bioreactor that is able to convert biomass into high value insect protein, fats, and chitin. BSF fats is highly potential to be used as high valued product, such as animal feed and biofuel. However, research that utilize OPEFB and PKM to modulate BSF fatty acid content during its' vegetative state is scarce. This study shows that inclusion of OPEFB as the dominant composition of the BSF feed modulate the synthesis and accumulation of lauric acid. Whilst the feed with PKM as dominant composition tends to modulate the synthesis of n-3 fatty acid, thus lowering the n-6/n-3 ratio of BSF fats. This research confirm the plasticity of BSF fats fatty acid composition depends on both feed fatty acid composition and digestability.Present study shows the potential of BSF utilization to valorize oil palm biomass into highly valuable specific fats sustainably.