About the Journal

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.

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).

Research article
A research article is an original full length research paper which should not exceed 5000 words in length (including table and fgures in good resolution). Research article should be prepared according to the following order: title, authors name and afliations, abstract, keywords, introduction, materials and method, result and discussion, conclusion, acknowledgement (optional), and references.

Review Paper
A review paper is an invited article up to 5000 words (including table and fgures in good resolution). Review paper summarizes the current state of knowledge of the topic supported by up-to-date and reliable references. It creates an understanding of the topic for the reader by discussing the fndings presented in recent research papers. A review paper synthesizes the results from several primary literature papers to produce a coherent argument about a topic or focused description of a feld.

Short communication
A short communication is a condensed version of research article, written without chapters, up to 3500 words (including table and figures in good resolution). It consists of title, authors name and affliations, abstract, keywords, main content, and references. The main content of the article should represent introduction, materials and method, result and discussion, and conclusion, prepared without headings. A short communication should contribute an important novelty for science, technology, or application. The authors are fully responsible for accuracy of the content. Any correspondence regarding the manuscript will be addressed to the correspondent author who is clearly stated including his/her email address, telephone and fax number (including area code), and the complete mailing address. The correspondent author will handle correspondence with editor during reviewing process. The author are required to suggest two potential reviewer names including their email address.

Preparation of the manuscript
a. The manuscript should be written in good English. It must be typewritten on A4 paper by using Microsoft Word with Arial font 12 and 1.5 spaced.
b. Indicate line numbers in each page of the whole manuscript.
c . All tables and figures should be prepared in good resolution and separate pages.
d. The manuscript has not been published in any proceeding of scientific meeting or conference.
e. When an animal/human subject is involved in the invivo study, ethical clearance should be included in the manuscript by stating the number of ethical approval obtained from ethics committee.
f. The perfection of English should be made by author's own colleague of the same scientific background, fluent in English, before submission.
g.  Soft copy of a manuscript should be sent to the editor by e-mail.

a The title of the article should be brief and informative (max. 10 words) in Arial font 16 and 1.15 spaced
b Each word of the title is initiated with capital letter, except for the species name of organisms.
c The institution where authors are affliated should be completely written (institution name).
d The name(s) of the author(s) should not be abbreviated.

a Abstract written in one paragraph in English and 250 to 300 words.
b The abstract should state briefly background, material and method, the main findings supported by quantitative data which is relevant to the title, and the major conclusions.

The keywords consist of no more than 5 important words not found in the title, representing the content of the article and can be used as inter-net searching words and arranged in alphabetical order.

Content, Tables and Figures
Content includes introduction, materials and methods; result and discussion, conclusion, acknowledgment, and references.
Figure 6 Experiment on incubation time of recombinant manCK7 for palm kernel meal treatment: a. at 1 hour until 5 hours, and b. 4 hours until 16 hours. Blanko = PKM treated with buffer phosphate pH 7, enzyme = PKM treated with recombinant manCK7.

The introduction states background of the research, including its novelties, supported mainly by the relevant references and ended with the objectives of the research.

Materials and Methods
a The materials used should include manufacture and source. Specific instruments and equipment should be described clearly.
b The methods used in the study should be explained in detail to allow the work to be reproduced. Reference should be cited if the method had been published.
c Any modifed procedures of the cited methodology should be explained clearly indicating which parts modifications had been made.
d Experimental design being used includes sampling technique and statistical analysis should be explained in detail.

Results and Discussion
a Results of the study should be presented as the starting point of discussion.
b The discussion of the results should be supported by relevant references.
c The title of tables and figures should be numbered consecutively according to their appearance in the text.
d Statistical data in figures and tables must include standard deviation (SD) or standard error of mean (SEM) or other statistical requirements.

The conclusion is drawn based on the objectives of the research.

Acknowledgment (if necessary)
Acknowledgment contains the institution name of funding body/grants/sponsors or institution which provides facilities for the research project, or persons who assisted in technical work and manuscript preparation.

References are arranged according to the council of Science Editors (CSE) Style: Harvard system or name year system. Please further refer to http://writing.wisc.edu/Handbook/DocCSE.html. Reference from the internet is written along with the date accessed. Minimum 80% of the cited references should be from the journals published within the last 10 years. Digital object identifier (DOI) number should be mentioned, if applicable.
Journal article References for journal articles follow the order Author(s). Year.Article title. Abbreviated journal-title. Volume(issue):pages.

To save space, CSE suggests that writers abbreviate the titles of journals in according to the ISO 4 standard, which you can read about at ISSN. You can also search ISSN’s List of Title Word Abbreviations.

Pahan I, Gumbira-Sa’id E,Tambunan M. 2011. The future of palm oil industrial cluster of Riau region Indonesia. EurJSoc Sci. 24(3):421-431.
Purnamasari MI, Prihatna C, Gunawan AW, Suwanto A. 2012. Isolasi dan identifkasi secara molekuler Ganoderma spp. yang berasosiasi dengan penyakit busuk pangkal ba-tang di kelapa sawit. J Fitopatol Indones. 8(1):9-15. DOI: 10.14692/jf.8.1.9.
Van Duijn G. 2013. Traceability of the palm oil supply chain. Lipid Technol. 25(1):15-18. DOI: 10.1002/lite.201300251.

References for books follow the order Author(s). Year.Title. Edition. Place of publication (Country Code): publisher.
Allen C, Prior P, Hayward AC. 2005. Bacterial wilt: the disease and the Ralstonia solanacearum species complex. St. Paul (US): APS Press.

Book chapter
References for chapters or other parts of a book follow the order Author(s). Year. Chapter title. In: Editor(s). Book title. Place of publication: publisher. Page numbers for that chapter.
Allen C. 2007. Bacteria, bioterrorism, and the geranium ladies of Guatemala. In: Cabezas AL, Reese E, Waller M, editors. Wages of empire: neoliberal policies, repression, and women’s poverty. Boulder (US): Paradigm Press; p. 169-177.
Otegui MS. 2007.Endosperm: development and molecular biology. In: Olson OA, editor. Endosperm cell walls: formation, composition, and functions.
Heidelberg (DE): Springer Verlag. p.159-178.

Proof Reading
Galey proof will be sent by email to the correspondence author. The corrected proof should be returned within 5 working days to ensure timely publication of the manuscript.

In case of trouble accessing the journal's website, please send your manuscript via email to ijop.maksi@gmail.com