International Journal of Oil Palm
International Journal of Oil Palm (IJOP) is an online and print mode, a peer-reviewed research journal published by Indonesian Oil Palm Society (Masyarakat PerkelapaSawitan Indonesia, MAKSI), it provides a global publication platform for researcher, scholars, academicians, professionals and students engaged in research in oil palm industries. The main aim of IJOP is to become the world’s leading journal in oil palm that is preferred and trusted by the community through publishing authentic, peer-reviewed and scientifically developed research articles of international caliber. The journal is published three times in a year, 6-10 papers per publication, and the language of the journal is English. JOURNAL SCOPE IJOP publishes research papers in the felds of soil and crop fertilizer application, seedling preparation, cover crop management, leaf pruning, weed control, control of pest and diseases, insect pollinators management, water management, intercropping, cattle oil palm integration, environmental studies, harvesting technology, IT remote sensing GPS application, mechanization, sustainability standards, policy studies, social and economic studies, smallholders empowerment, palm oil mill improvement, biomass utilization, carbon footprint, water footprint, market studies, refinery, food and nutrition technology (oleofood, food safety, pharmaceutical, and nutraceutical) and also management of soil preparation, inorganic and organic safety, oleochemicals, downstream industry development, supply chain, and market studies. The published articles can be in the form of research articles, review paper or short communications which have not been published previously in other journals (except in the form of an abstract or academic thesis/dissertation or presented in seminar/conference).
Articles
67 Documents
<![CDATA[Screening of White-Rot Fungi as Biological Control Agents Against Ganoderma philippii ]]>
<![CDATA[Afrida Sitompul]]>;
<![CDATA[Aswardi Nasution]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 1 (2020): January 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i1.45
<![CDATA[Ganoderma philippii is the causal agent of root rot disease causing economic losses to Acacia plantations. In an effort to control the Ganoderma root-rot disease, we isolated and screened white-rot fungi as biological control agents. We collected 107 samples from forestry plantations in Riau Province. The fungi were isolated from rotten wood including trunks and twigs, and fruiting bodies. Out of the 107 samples, 28 from rotten woods and 51 from fruiting bodies were successfully isolated. Screening of the isolated fungi was done on wood block, wood disc, and wood-powder-containing agar. Eleven isolates showed fast growth on wood block and in subsequent second screening in dual culture on wood disc, three isolates showed fast growth and were capable of overgrowing G. philippii. The third screening was to examine quantitative growth rate of selected fungal isolates on malt extract agar wood powder (MEA-WP) two isolates were selected. These two isolates have shown potential as biological control agents of the root-rot pathogen, G. philippii.]]>
<![CDATA[Processing, Characteristics, and Potential Application of Red Palm Oil - A review ]]>
<![CDATA[Kartika Okta Purnama]]>;
<![CDATA[Dwi Setyaningsih]]>;
<![CDATA[Erliza Hambali]]>;
<![CDATA[Darmono Taniwiryono]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 2 (2020): May 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i2.47
<![CDATA[Crude palm oil (CPO) is produced from the extraction process of palm fruit pulp. Palm oil contains essential components in the form of triglycerides, mostly as fatty acids, namely palmitic acid, oleic, and linoleic. However, palm oil also contains minor phytonutrients, such as carotene, tocopherol, and tocotrienol. Palm oil has been widely used in the food and non-food industries. As a raw material in various products, palm oil undergoes a refinery process to remove unlike free fatty acids (FFA), odors, and colors (reddish to bright yellow). In this process, phytonutrients are degraded and damaged so that the content becomes very low. Phytonutrients in the CPO has not been fully utilized their benefits for human health. One of the palm oil products that contain high phytonutrient compounds is red palm oil. There are two types of red palm oil, namely virgin red palm oil (VRPO) and red palm oil derived from CPO (RPO). VRPO is produced from direct extraction of oil palm fruit, while RPO is produced from the neutralization of CPO and deodorization at low temperatures to reduce FFA levels. Both of these products contain high phytonutrients, such as carotene, tocopherol, and tocotrienol. This paper reviews several studies on the processing, characteristics, and potential use of red palm oil in food and non-food products. The application of red palm oil in margarine as a specific food product has the potential to be further studied.]]>
<![CDATA[How does COVID-19 Impact Oil Palm Management Practices in Indonesia? ]]>
<![CDATA[Ratnawati Nurkhoiry]]>;
<![CDATA[Sachnaz Desta Oktarina]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 2 (2020): May 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i2.49
<![CDATA[Disrupted economy due to COVID-19 pandemic has been spilled to multifaceted sectors. Agriculture, more specifically oil palm sector was also hit by the impact of the catastrophe. This study is aimed to decipher the effect of COVID-19 pandemic to the management of oil palm plantation. The pandemic has caused the mobility and morbidity of people in such a way that exacerbated distribution of input factor, harvesting process, and transporting activities. Through online survey to 59 farmers consist of smallholder, government, and private estates, the study indicated that there was salient change of limiting activities particularly during immature and mature stages. Hence, the production of fresh fruit bunch (FFB) also decreased by 15% compared to business as usual as measured on monthly bases. Although the magnitude of production change was not statistically significance, planters still suffered from declining FFB farm gate price. On average, they received 5% lower selling price of FFB as a consequence of contracted CPO demand from prominent importing countries such as China, India, and Italy. The lower selling farm gate price has caused the income shocks to the farmers. Thus, quite large number of them experienced either turn-over or cost efficiency at the expense of fertilizer input. It is perpetuating the vicious cycle of lower smallholder attainable FFB yield. For a group that is at the high risk of infections as well, this circumstances has bring about concerns to Indonesian palm oil development, especially in terms of replanting realization and biodiesel blending progress in the long run]]>
<![CDATA[The Unavoidable Palm Oil Can Be Sustainable ]]>
<![CDATA[GH YUE]]>;
<![CDATA[Baoqing Ye]]>;
<![CDATA[Antonius A Suwanto]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 2 (2020): May 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i2.50
<![CDATA[The oil palm is the most productive oil-producing crop. To yield the same volume of oil that is from one hectare of palm, eight hectares of soybean are needed. Palm oil is used an ingredient in over 50% of packaged supermarket products and also as biofuels. The palm oil sector provides over 4.5 million jobs for on-farm laborers in developing countries. However, palm oil is often blamed for deforestation and loss of biodiversity. We argue that palm oil sustainability is not only about the environment and biodiversity but also about people and their prosperity. Palm oil sustainability can be achieved with joint efforts from palm oil players including the smallholders, plantation companies, governments, certification agencies, consumers and researchers.]]>
<![CDATA[Factors Influencing Economic Performance of Palm Oil Producers in Akwa Ibom State, Nigeria ]]>
<![CDATA[Folasade Oluremi Aminu]]>;
<![CDATA[Justina Umoh]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 3 (2020): September 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i3.52
<![CDATA[The study examined the factors influencing economic performance of palm oil production in Abak Local Government Area of Akwa-Ibom State, Nigeria. The study was based on primary data collected with the aid of pre-tested questionnaire from 120 respondents using multistage sampling technique in the study area. Descriptive statistics and multiple regression analysis were used for data analysis. Results revealed that majority (78%) of the palm oil producers were female with a mean age of about 50 years. The costs and returns analysis indicated that palm oil production was a profitable enterprise with a rate of return of 1.17. The result of the regression analysis revealed that age (p<0.05), education (p<0.01), membership of cooperative society (p<0.05), cost of equipment (p<0.05) and cost of labour were the significant factors influencing economic performance of palm oil producers in the study area. The major constraints faced by the producers were inadequate capital, lack of credit facilities, lack of access to improved inputs and technology, price fluctuation among others. The study recommended that, government, both at the federal and state levels should make credit facilities available and accessible to the palm oil producers at low interest rate in order to sustain and invigorate their economic performance.]]>
<![CDATA[Increasing Hydrolytic Activity of Lipase on Palm Oil by PCR-Based Random Mutagenesis ]]>
<![CDATA[Maria Dita Febriani Lumban Gaol]]>;
<![CDATA[Andreas Adhi Satya]]>;
<![CDATA[Esti Puspitasari]]>;
<![CDATA[Nisa Rachmania Mubarik]]>;
<![CDATA[Antonius Suwanto]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 3 (2020): September 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i3.53
<![CDATA[ABSTRACT Random mutagenesis technique is a powerful technique capable of producing enzymes with desired biocatalytic activity. This study aims to obtain a mutant lipase with improved hydrolytic activity on palm oil substrate using random mutagenesis technique. Random mutagenesis by error-prone PCR was used to generate mutant lipases. A total of 1101 mutants were obtained, out of which two mutants, Lip M14.25, and Lip M14.57, showed an increased relative hydrolytic activity. Lip M14.25 and Lip M14.57 demonstrated a 14% and 16% increased activity respectively. A comparison of the mutants' hydrolytic activities using p-nitrophenyl esters showed a significantly high preference for p-nitrophenyl palmitate. Furthermore, the mutant, Lip M14.25 showed its highest activity at pH 5, and Lip M14.57 exhibited a 10 oC decrease in optimum temperature. The two mutants' protein modelling showed the substitution of N44S/S202N on M14.25 and F154L/S265C on M14.57 lipase, which caused changes in conformation and active site residue distance of the lipase. The study found two mutants of lipase, M14.25 and M14.57, which showed improved hydrolytic activity on palm oil substrate.]]>
<![CDATA[Technical Feasibility to Utilize Wasted Empty Fruit Bunch from Small Scale Farms for Simultaneous Production of Biochar and Electricity ]]>
<![CDATA[Dwi Setiawan]]>;
<![CDATA[Johanis Rumengan Pangala]]>;
<![CDATA[Abdul Baits Dehana Padma Swastika]]>;
<![CDATA[Armansyah Halomoan Tambunan]]>
<![CDATA[ International Journal of Oil Palm Vol. 3 No. 3 (2020): September 2020 ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v3i3.54
<![CDATA[Biochar production by pyrolysis stove and utilization of the excess heat to generate electricity, simultaneously, could improve the performance of the whole system, and give a significant solution to both energy and environmental problems. This is especially if implemented as a stand-alone facility and applied in a remote area. The purpose of this study is to evaluate technical feasibility and strategy in using pyrolysis stoves to produce biochar and generate electricity by ORC, simultaneously. This study combines various data obtained previously, which consists of pyrolysis stove design and performance test for simultaneous biochar production and thermal energy use, and ORC experiments for electricity generation. Those data then was used to analyze the technical feasibility of the simultaneous production of biochar and electricity generation using the excess heat from the pyrolysis stove. The integration of the pyrolysis stove with the ORC was conducted in a simulative study. The results showed that biochar produced using the pyrolysis stove has characteristics that are very supportive for use as a soil enhancer. Excess heat from the pyrolysis stove during the production of biochar can be used to fuel the ORC system to generate electricity. The optimum biochar yield and thermal efficiency of the ORC were found to be optimum at the stove's airflow rate of 0.034-0.035 kg/s. Accordingly, a combination of biochar production and electricity generation using the ORC system is considered to be technologically feasible to meet the sustainability requirement.]]>
<![CDATA[Does the Change in Land Cover Alters Birds and Butterflies Diversity? ]]>
<![CDATA[Marini Machdi Putri]]>;
<![CDATA[Yanto Santosa]]>;
<![CDATA[Burhanuddin Masy'ud]]>
<![CDATA[ International Journal of Oil Palm Vol. 4 No. 1 (2021) ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v4i1.55
<![CDATA[Currently the expansion of oil palm is increasing, which at the same time creates a lot of negative responses related to environmental impacts, biodiversity loss, including birds and butterflies species diversity. Nowadays our understanding of the impacts of oil palm plantations is still based on the claim that oil palm plantations are established on primary forest land. The study aimed to estimate the impact of land cover changes, loss of biodiversity, and possible cohabitation between birds and butterflies based on baseline land type before oil palm plantation. The research was conducted at PT Tempirai Palm Resources, to be precise, in the baseline area (shrubs) and plantation areas planted with oil palm using direct and indirect observation methods. Based on research, it was known that land conversion to oil palm plantations caused changes in the number of species, and the diversity of birds and butterflies. The number of bird species in the baseline area was higher (S = 22 species, H ‘= 2.51) than in the plantation area. The number of butterfly species in the baseline area was less (0 species) than in the oil palm plantation area (5 species, H ‘= 1.56, Dmg = 2.23). In general, the increase in bird species’ biodiversity was higher (59.09%) compared to the loss. In contrast, the butterfly species was not lost. A cohabitation also occurred between birds and butterflies at the site. The study concluded that oil palm plantation not only have a negative impact but also a positive impact for biodiversity especially for bird and butterfly.]]>
<![CDATA[Epoxidation of Palm Olein as Base Oil for Calcium Complex Bio Grease ]]>
<![CDATA[Erliza Hambali]]>;
<![CDATA[Ni Nyoman Indah Adi Puspita]]>
<![CDATA[ International Journal of Oil Palm Vol. 4 No. 1 (2021) ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v4i1.57
<![CDATA[The development of palm oil bio grease aimed to substitute grease made from petroleum with a material that is more environmentally friendly. The enhancement of bio grease characteristics can be performed by chemical synthesis. This research aimed to obtain best mole ratio of palm olein and H2O2 in the epoxidation process, and to analyze the physical characteristics of the bio grease products. This process used acetic acid and H2O2 with mole ratio variations of olein and H2O2 of 1: 3, 1: 6, and 1: 9. The mole ratio was selected based on the analysis of iodine and oxiran numbers, which was then processed into bio grease with the addition of calcium stearate and calcium acetate. Epoxidized olein with a mole ratio of olein and H2O2 of 1: 9 was selected because it achieved the highest average oxiran number (0.99), the lowest iodine number (33.09), and it was based on ANOVA and LSD tests. The higher the oxiran number, the more epoxide compounds produced. Low iodine number indicated low unsaturation in fatty acids. The peroxy acid used in the epoxidation process reacted with unsaturated compounds, so that the lower iodine number in the epoxidized olein produced more epoxide compounds. Bio grease had a light cream color, density of 0.96 g/cm3, viscosity of 31,280 mPa.s, unworked penetration of 438 (0.1 mm), worked penetration of 443 (0.1 mm), dropping point < 26°C, corrosion resistance of 2c and NLGI number 00.]]>
<![CDATA[Understanding the Codex Standard to Ensure Safety and Quality of Palm Oil ]]>
<![CDATA[Purwiyatno Hariyadi]]>
<![CDATA[ International Journal of Oil Palm Vol. 4 No. 1 (2021) ]]>
Publisher : <![CDATA[Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI) ]]>
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DOI: 10.35876/ijop.v4i1.58
<![CDATA[Indonesia is the number one producer and exporter of palm oil globally. About 85% of palm oil is used for food applications. Consequently, issues related to food safety and nutrition have always been a major concern, both for producers and consumers of palm oil. In this respect, the palm oil industry must put serious effort to comply with food safety and quality standards, such as those of Codex standards, especially specified at Codex Standard for named vegetable oils (CXS 210-1999).]]>
