Founded in 1983, the Nigerian Journal of Biotechnology (NJB) publishes original research papers, short communications (not more than 1500 words), theoretical or review articles (invited or from authors that worked extensively in their areas of research), advances in our knowledge or understanding of any field of Biotechnology and related disciplines. Letters to the Editors are also welcome. Negative results will be accepted only when they can be considered to advance our knowledge significantly. Authors wishing to write review articles should send an outline to the editor before preparing their manuscripts. All manuscripts submitted are subject to peer reviews. Contributions are accepted on the understanding that all authors have seen and approved the manuscript, that the work has not previously been published in journal form and that it is not being considered for publication elsewhere.

Manuscripts should be neatly typed (double-spaced) on one side of an A4 size paper with at least 2.5 cm on all margins and should not be more than 2500 words or 10 - 15 pages including figures, tables and references. The first page should carry the title of the paper, the last name, middle and first name initials of the authors and address of institution where the work was done. A summary of not more than 200 words should be included at the beginning of the paper. The text of the paper should be divided into Introduction, Materials & Methods, Results, Discussion, Acknowledgment and References. Results and discussion may be combined in one section.


References in the text should be cited thus: two authors, Moses and Chikwem (1996) or (Moses & Chikem, 1996); three or more authors, Moses et. al. (1996) or (Moses et. al., 1996). Reference to papers by same author(s) in the same year should be distinguished   in the text and the reference list by letters a, b, c, etc. (e.g. 1996a, or 1996b). References at the end of the paper must be given in alphabetical order except for papers with three or more authors which should be listed in chronological order after any other papers by the first author. References must include the title of the paper as well as both initial and final page numbers. Titles of journals should be abbreviated according to the system followed by Index Medicus and Biological Abstracts. References to books should include year of publication and publisher, in that order. When the reference is to a particular part of a book, the inclusive page numbers and, if appropriate, chapter title must be given. Citation format is as follows:


  1. Lowry, O. H., Rosebrough, N. J. and Fair, A. L. (1951). Protein measurement with folin-phenol reagent.   J. Biol. Chem. 193: 265-75.


  1. Plummer, D. T. (1987). An Introduction to Practical Biochemistry, 3rd Ed. London. McGraw-Hill Book Company, p.159.

Individual Chapters in Books

  1. Obatomi, D. K., Plummer, D. T. and Haslam, J. D. (1991). Enzymuria as an index of nephrotoxixity: mechanisms, early diagnosis and therapeutic management.  Marcel Dekker Inc., Pp. 555-561.

Conferences and Symposia

  1. Uwakwe, A. A., Monanu, M. O. and Ekele, G. I. (1991). Comparative studies on human erythrocyte NADH and NADPH diphosphatase from HbA, HbAs and HbSS subject. Abtr. 15th International Congress of Biochemisry, Jerusalem, August, 4 - 8, pp.265.

Submission of Manuscripts

Manuscripts should be submitted to the Editor-in-Chief by email through  Cover letter should also be forwarded. This will indicate, consent of all authors and that the manuscript is not being processed for publication elsewhere.

Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.

  1. The submission has not been previously published, nor is it before another journal for consideration (or an explanation has been provided in Comments to the Editor).
  1. The submission file is in Open Office, Microsoft Word, RTF, or WordPerfect document file format.
  2. Where available, URLs for the references have been provided.
  3. The text is double-spaced; uses a 12-point font; employs italics, rather than underlining (except with URL addresses); and all illustrations, figures, and tables are placed within the text at the appropriate points, rather than at the end.
  4. The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines, which is found in ‘About the Journal’.
  5. If submitting to a peer-reviewed section of the journal, the instructions in Ensuring a Blind Review have been followed.

Publication charge

The handling fee for submitted manuscript is NGN1,700 and the publication charge for accepted manuscript is NGN10,000.


Authors are required to include the DOI of their articles (located in the top left hand corner of the article’s first page) in the reference sections whenever they cite their articles

Privacy Statement:

The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party.


Submission of a manuscript implies: that the work has not been published (except in the form of an abstract or as part of a published lecture, review or thesis); that it is not under consideration for publication elsewhere; that its publication has been approved  by all co-authors, if any, as well as by the responsible authorities at the institute where the work has been carried out; that  if and when the manuscript is accepted for publication the authors agree to automatic transfer of the copyright to the publisher and that the manuscript will not be published elsewhere in any language without the consents of the copyright holders.

All articles published in this journal shall carry a copyright statement shown below:-

Copyright resides with the authors in terms of the Creative Commons License 4.0.


Condition of use: The user may copy, distribute, transmit and adapt the work, but must recognize the authors and the Nigerian Journal of Biotechnology


1. The maximum acceptable similarity index (SI) after plagiarism check shall be 10%.

2. Author(s) with SI between 11 - 30% shall be advised to revise their manuscripts with a view to bringing the SI to <= 10%.

3. SI > 30% shall be out rightly rejected without any benefit of revision.

4. The plagiarism check shall exclude REFERENCES.

5. The check shall also exclude authors' names and addresses, tables and figures. These ones hardly contribute to similarity index.

6. For all manuscripts with SI <= 30%, the Editors shall go through the highlighted similarity areas in the entire manuscript to identify the parts of the manuscript with high matches.

7. Where the author has lifted, verbatim, several sentences in a row or has lifted paragraphs from published sources (and placed them in the INTRODUCTION, RESULTS, DISCUSSION and CONCLUSION) without putting the sentences in quotes and well referenced, we shall return the manuscript and request the author(s) to revise the manuscript with a view to bringing the SI below 10%.

8. If the high matches are in METHODOLOGY, the Editors shall decide if such sentences are protocols/procedures which are universally similar in their rendition. Authors shall not be penalized for this.

9. The author(s) of a manuscript with > 60% Similarity Index after exclusion of references, authors’ names, addresses, tables and figures shall be blacklisted and banned from submitting manuscripts to NJB for a period of three years.

10. Due to the sensitivity of the issue at stake with its possible litigations for authors and the publisher, this policy takes immediate effect

Authors can run their own Similarity Index using the free version of our Plagiarism Checker at

Journal Identifiers

print ISSN: 0189-1731