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All Journal DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Makara Journal of Technology
Krisdiarto, Andreas Wahyu
Fakultas Teknologi Pertanian, Institut Pertanian Stiper Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Makara Journal of Technology

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Study on Oil Palm Fresh Fruit Bunch Bruise in Harvesting and Transportation to Quality Krisdiarto, Andreas Wahyu; Sutiarso, Lilik
Makara Journal of Technology Vol. 20, No. 2
Publisher : UI Scholars Hub

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Abstract

There are losses of production due to oil palm field’s material handling. Activities that may raise the losses are harvesting and transportation, which may cause bruise and damage to fruit. This research was aimed to learn the bruise of fresh fruit bunch (FFB) phenomenon in harvesting and transportation. Method used in this research was measuring the bruise area resulted by FFB falling when harvested, loading (throwing up) FFB to truck bin, and transporting using truck. These data, coupled with weight of bruised fruit, were calculated to get FFB bruise index. Each FFB bruise index is related to potential free fatty acid (FFA) value. FFA is one of important quality indicator of crude palm oil. The harvesting was conducted at mineral land and peat land, and the loading and transportation was conducted using wooden board truck and dump (iron board) truck. There was a difference between bruise index and FFA of FFB fall on mineral and on peat land. FFA of mineral land harvesting was 2.19% while of peat land was 1.27%. It was obvious that fruit quality degradation was higher when FFB positioned at the bottom of bin truck layer rather than at the top. FFA of truck bin bottom layer was 2.79% while of top layer was 0.64%. It was found that there was a cumulative bruise on FFB within material handling, start from harvesting, loading up to truck bin, and transporting from field to loading ramp.
Mapping of Bruise of Oil Palm Fresh Fruit Bunch during Loading and Transportation from Field to Mill Krisdiarto, Andreas Wahyu
Makara Journal of Technology Vol. 22, No. 2
Publisher : UI Scholars Hub

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Abstract

Fresh fruit bunches (FFBs) are used as raw materials for palm oil, and their transport from a field is a critical step to maintain their quality. Fruit integrity should be maintained so the mill can efficiently obtain palm oil with less than 5% free fatty acid content. Physical treatments for FFBs during loading to truck bins and transport may cause physical injuries. This research aimed to map fruit bruises. The map can be used as a basis in managing transport of FFBs. Physical injuries were assessed by bruise index (BI), which was calculated by measuring the bruise area and weight of the fruit. The experiment was conducted in a completely randomized design (CRD) with five replications. The treatments included truck type (wood bin or steel bin), truck age (more and less than 5 years), and FFB position in the truck bin (bottom, middle, top layer, front, center, or rear). Data were described by graphical method and analyzed statistically with one-way ANOVA. Results indicated loosen fruits and increased bruising of matured fruits loaded to the truck bin. BI (1.97–2.07) was not significantly different among FFBs placed in different positions in the truck bin. Nevertheless, FFB at the middle position showed higher degree of bruising than FFBs at the other positions. Fruit bruise was more prevalent when FFBs were transported by an old truck (>5years) rather than by a young truck, with BI values of 2.01 and 1.82, respectively.
Co-Authors Bimantio, Mohammad Prasanto Ferhat, Amallia Lilik Sutiarso