Pages

Publications

Publications

( List of Books, Chapters in Books published based on individual research or collaborative work that are completed or in preparation)

1.
Mohd Omar Ab.Kadir,  Asyirah A.R., Shalima, Sabariah  and Fatehah, M.O.,Environmental Management Elements in Contract Documents;Proceedings of The 9th International Business Information Management Association Conference Jan 44-6, 2008, Marrakech Morocco. Editor: Khalid S. Soliman; pp 1075-1083; ISBN 0-9753393-8-9

2.
Asyirah A.R , Nik Norulaini, N.A , Fera Fizani,.A.F. and Mohd Omar, A.K.,2007 
Environmental Management Elements in Construction Contract Documents: Survey in 
Malaysia,  IN RESEARCH ACHIEVEMENT IN THE CONSTRUCTION INDUSTRY, pp204- 209, Eds: Rosman Ahmad, Zuhairi Abd Hamid, Nora harun, Ramlah Awi Azizan Nor, Nik Norulaini, N.A.  Publisher: CIDB, Malaysia, ISBN: 978-983-2724-53-7, pp216

3.
Nik Norulaini, N.A , Mohd Omar, A.K., Fera Fizani, A.F., Asyirah A.R., Shalima T
and Sabariah S,  2007 ,  Enhancement of Environmental  Protection in the Construction Industry via an Environmental Management System  IN RESEARCH ACHIEVEMENT IN THE CONSTRUCTION INDUSTRY, pp199-203. Eds:. Rosman Ahmad, Zuhairi Abd Hamid, Nora harun, Ramlah Awi and Azizan Nor, Publisher: CIDB, Malaysia, ISBN no: 978-983-2724-53- 7, pp 216

4.
Nik Norulaini, N.A , Mohd Omar, A.K,  Environmental Aspects and Impacts of 
Construction Industry: Special   Review Book: New Developments in Environmental Pollution and Climate Change, Editor: Ahmed El Nemr; Publisher: Transworld Research Network. (In Print)

5.
Nik Norulaini, N.A , Mohd Omar, A.K , Heuristic Approach: Towards Sustainable 
Control of Environmental Pollution: Special   Review Book: New Developments in 
Environmental Pollution and Climate Change,  Editor: Ahmed El Nemr; Publisher: Transworld Research Network. (In Print)

6.
Research at Universiti Sains Malaysia: Environmental Management and 
Engineering Volume 3,  Ed KJ Ratnam  Chapter 14, Cleaner Technology in the Oil Palm Industry Using Supercritical Fluid  Extraction,  pp144-151. USM Publisher, Pulau Pinang, ISBN no 983-2514-88-6, 2005 

7.
Penang Coastal Profile, Intergrated Coastal Zone Management Project, Chapter 7, An Overview of Waste Management and Coastal Pollution. Publisher Penang State Government. 1998 

8.
Handbook of Plastic Additives.  Rice Husk Ash as Fillers in Polypropylene, pp.561- 566 Eds. By G.Pritchard, Publisher, Chapman and Hall. London United Kingdom 1998. ISBN 0 412 72720 X

9.
Problems in Heat Transfer by J.R. Backhurst, J.H. Harker and J.E.Porter  (Translated into Bahasa Melayu) Publisher, Universiti Sains Malaysia. 1997

10.
Trends in Traditional Medicine Research. Extraction of Arecoline from Areca nuts Using Supercritical Fluid Carbon Dioxide, Eds. Chan, et. al, Penang. pp. 310-320, 1995 ISBN 983-861-091-7.

11.
Trends in Traditional Medicine Research, The Effect of Piper betel Leave Extracts on Fusarium Oxysporum and Phytophtora Palmivora, Eds. Chan, et. al,. Penang. pp. 535-539. 1995 ISBN 983-861-091-7.

12.
Classification of Malaysian Rivers Vol. 8a Prai River. Chapter 2, Hydrological 
Features, Publisher Department Of Environment, Ministry of Science Technology and Environment Malaysia. 1994

13.
Classification of Malaysian Rivers Vol. 2, Chapter 4, Methodology and Classification of Ten Rivers. Publisher, Department Of Environment, Ministry of Science Technology and Environment Malaysia. 1994

14.
Classification of Malaysian Rivers Vol. 1, Executive Summary. Chapter 3, River 
Basin Inventory System and Classification: Hydrology, Landuse and Socio-Economic, Publisher, Department Of Environment, Ministry of Science Technology and Environment Malaysia. 1994 

15.
Malaysian Natural Resource. Sustainability, Development and Strategies. “Recent Development in Pig Farming Industry in Penang", Eds. Ipor et. al, Kuching Sarawak.pp.183-190. 1995 ISBN 983-9151-00-2.

16.
Malaysian Natural Resource. Sustainability, Development and Strategies. “Interaction of Piper betel extract and Fusarium oxysporum in culture" pp.199-204", Kuching Eds. Ipor et. al, Kucing Sarawak. 1995. ISBN 983-9151-00-2

17.
Pemasyarakatan Istilah Biologi: An Overview, Peristilahan dan Penulisan Sains-pg.98-103, Publisher Dewan Bahasa dan Pustaka (DBP) 1992.

18.
Operasi Unit: Amali, Aspek Keselamatan dan Penulisan  (Unit Operation: Practical, Safety Aspect and Report Writing) pp. 132 (in print at USM)



List of Published Articles
(in Academic or Professional Journals - refereed)
1.
M.H.A. Jahurul, I.S.M. Zaidul, N.A.N. Norulaini, F. Sahena, S. Jinap, J. Azmir, K.M. Sharif,A.K. Mohd Omar*, 2012. Cocoa butter fats and possibilities of substitution in food products concerning cocoa varieties, alternative sources, extraction methods, composition and characteristics. Journal of Food Engineering, Article in Press 8th Dec 2012

2.
Md. Sohrab Hossain, Mohd. Omar Ab Kadir, Nik Norulaini Nik Ab Rahman, Venugopal Balakrishnan, Vignesh R. Puvanesuaran, Md. Zaidul Islam Sarker, 2012. Detection of Infectious Risk Assessment on Unsafe Handling and Management of Clinical Solid Waste. International Journal of Environmental Research and Public Health, Article in Press

3.
Reem Alrawi, Nik Norulaini Nik Ab Rahman, Anees Ahmad, Norli Ismail and A.K. Mohd Omar, 2012. Characterization of Oily and Non-Oily Natural Sediments in Palm Oil Mill Effluent (POME). Journal of Chemistry, ISSN: 2090-9063

4.
Mark H. Zuknik, N.A. Nik Norulaini, A.K. Mohd Omar, Supercritical Carbon Dioxide Extraction Of Lycopene: A Review. 2012. Journal of Food Engineering, DOI: 10.1016/j.foodeng.2012.05.012, Accepted 7 May 2012

5.
Akanda, Mohammed Jahurul Haque; Sarker, Mohammed Zaidul Islam; Ferdosh, Sahena; Manap, Mohd Yazid Abdul; Ab Rahman, Nik Norulaini Nik; Ab Kadir, Mohd Omar. 2012. "Applications of Supercritical Fluid Extraction (SFE) of Palm Oil and Oil from Natural Sources."Molecules 17, no. 2: 1764-1794

6.
Tengku Norsalwani Tuan Lah, Nik Norulaini Nik Ab. Rahman', Jannah Hasnan, Moftah Massaud Ben Nama, Hideyuki Nagao., Mohd Omar Ab Kadir, 2012. Cellulase Activity in Solid State Fermentation of Palm Kernel Cake with Trichoderma Sp, Malaysian Joumal of Microbiology Vol 8(4). 

7.
Mohd OmarAbd Kadir*, Sahena Ferdosh, Md. Zaidul Islam Sarker*, Nik Norulaini NikAbd Rahman, Jinap Selamat, Md. Rezaul Karim, Md. Johurul HaqueAkanda, 2012, Fish oil recovery from viscera of Indian Mackerel (Rastrelliger kanagurta) by supercritical fluid: An optimization approach. Journal of the Chinese Chemical Society DOI: 10.1002/jccs.201100235

8.
Nik Norulaini Ab Rahman, Sawsan S. Al Rawi, Ahmad H. Ibrahim, Moftah M. Ben Nama,Mohd Omar Ab Kadir, (2012) Supercritical  Carbon dioxide extraction of the residual oil from palm kernel cake, Journal  of Food Engineering.108(2012)166 -170.

9.
Nik Norulaini N. Ab Rahman, Moftah, B.N. Massaud, Aliyu-Paiko, M., Tengku Norsalwani Tuan Lah, Abu Hanifah Nawi, Mohamad Omar Ab Kadir, 2012, Maximising Glucose Production from Palm Kernel Cake (PKC) from which residual Oil was Removed Supercritically via Solid State Fermentation (SSF) Method Using Trichoderma reesi Isolate pro-A1. The Internet Journal of MicrobiologyVol 10,Number 1,ISSN: 1937-8289.

10.
Md. Sohrab Hossain, Venugopal Balakrishnan, Nik Norulaini Nik Ab Rahman, Md. Zaidul Islam Sarker, Mohd Omar Ab Kadir, 2012. Treatment of Clinical Solid Waste Using a Steam Autoclave as a Possible Alternative Technology to IncinerationInt. Journal of Environmental research and Public Health,doi:10.3390/jjerph9630855

11.
Hossain, M.S., Bari, M. F., Jamaludin, S. B.,  Hussin, K., Mohd Omar, A.K., 2012. Selective extraction, separation and recovery of Cu(II) in presence of Zn(II) and Ni(II) from Leach liquor of waste Printed circuit board using microcapsules coated with Cyanex 272. Korean Journal of Chemical Engineering. Vol 29 (5), 668-675

12.
Nik Norulaini Nik Ab Rahman, Moftah M Ben Nama, Sawsan S. Al Rawi, Ahmad H.Ibrahim,Mohd Omar Ab kadir, 2011, Comparison of nutritional composition between palm kernel fiber and the effect of the supercritical fluid extraction on its quality, Procedia Food Science of Elsevier. Volume 1,2011, Pages 1940 – 1945. Accepted  on Sept 2nd  2011.

13.
Nik Norulaini Nik Ab Rahman, Sawsan S. Al Rawi, Ahmad H.Ibrahim, Moftah M Ben Nama, Amin M.S. Abdul Majid, Mohd Omar Ab kadir, 2011, The effect of supercritical fluid extraction parameters on nutmeg oil extraction  and its cytotoxicity and antiangiogenic , Procedia Food Science of Elsevier.  Volume 1 , 2011,Pages 1946 – 1952 . Accepted  on Sept 2nd  2011.

14.
A.H. Ibrahim, S.S. Al Rawi, A.M.S. Abdul Majid, N.N. Ab Rahman, K.M. Abo-Salah, M.O. Ab Kadir, 2011, Separation and fractionation of Aquilaria Malaccensis oil using supercritical fluid extraction and the cytotoxic properties of the extracted oil, Procedia Food Science of Elsevier.  Volume 1, 2011,Pages 1953 – 1957. Accepted  on Sept 2nd  2011.

15.
Mahmud Ahmed, Nik Norulaini Nik  Ab Rahman,  M.Aliyu-Paiko,  Roshada Hashim, Mohd Omar Ab Kadir and Anees Ahmad,  Solid POME sludge  as a new source of fish  feed ingredient for Nile Tilapia (Oreochromis niloticus) Int. Journal of Environmental Technology and Management, Vol. 1(1) Pages1- 82 . 2011. Published on line

16.
A.N. Mustapa , Z.A. Manan, C.Y. Mohd Azizi , W.B. Setianto , A.K. Mohd Omar, (2011) Extraction of b-carotenes from palm oil mesocarp using sub-critical R134a, Journal of Food Chemistry, 125 (2011) 262–267

17.
Reem A. Alrawi, Anees Ahmad , Norli Ismail, Mohd Omar A. Kadir, (2011), Anaerobic co-digestion of palm oil mill effluent with rumen fluid as a co-substrate, Journal of Desalination, Volume 269, Issues 1-3, 15 March 2011, Pages 50-57
18.
Nik Norulaini Nik Ab Rahman, Salman Zhari, Md Zaidul Islam Sarker, Sahena Ferdosh, Mohd Azizi Che Yunus and Mohd Omar Abd Kadir, Profile of Parkia speciosa Hassk Metabolites Extracted with SFE using FTIR-PCA Method, J. Chin. Chem.Soc., Vol 58, No 6, 2011

19.
N.A. Nik Norulaini , Mohd Omar Abdul Kadir , Santhanam, A., Hossain, M.S. (2011), Clinical Solid Waste Management Practices and its Impact on Human Health and Environment,Journal of Waste Management, 31, 754-766

20.
Fong Moi Pang, Pradeep Kumar, Tjoon Tow Teng, A.K.Mohd Omar, Kailas L.Wasewar, (2011) Removal of lead,zinc and iron by coagulation–flocculation Journal of the Taiwan, Institute of Chemical Engineers,Volume 42 , issue 5,September 2011,Pages 809 - 815 accepted 21stJanuary 2011

21.
Bazlul Mobin Siddique, Anees Ahmad*, Abbas F.M. AlKarkhi, Mahamad Hakimi Ibrahim, Mohd Omar A.K. (2011), 'Chemical composition and antioxidant properties of candlenut oil extracted by supercritical CO2'. avaiable online in Journal of Food Science, DOI: 10.1111/j.1750-3841.2011.02146.x

22.
Hossain, M. S., Venugopal. B, Nik Norulaini, N. A., Mohd Omar, A. K., 2011. Determination of the best effective management strategy for the safe disposal of clinical solid waste in Penang Island, Malaysia. Waste Management-A Glance at the World, Accepted.

23.
Bazlul Mobin Siddique, Anees Ahmad*, Mohamad Hakimi Ibrahim, Sufia Hena, Mohd Rafatullah and Mohd Omar A. K. (2010), 'Physico-chemical Properties of Blends of Palm Olein with other Vegetable Oilsysico-'chemical Properties of Blends of Palm Olein with other Vegetable Oils'. Grasas y Aceites 61(4):423-429.  DOI: 10.3989/gya.01071

24.
Reem Al Rawi Ahmed, Anees Ahmad*, Norli Ismail  and Mohd Omar Ab. Kadir (2010), ‘Methane production during start-up phase of mesophilic semi-continues suspended growth anaerobic digester-Int. J. of Chemical Reactor Engineering, Vol 8, Article A89

25.
N.A. Nik Norulaini, Md Zaidul Islam Sarker,  Wahyu Setianto,  Fatehah M.O., Jaharul Haque Akanda, Mohd Omar Abdul Kadir  (2010),   Optimization of Arecoline Extraction from Areca Nut Using Supercritical Carbon Dioxide.  Journal of Food and Drug Analysis, Vol. 18, No. 1,  1-7 (Impact Factor  0.471)

26.
Nik Norulaini, I.S.M. Zaidul, C.Y. Yunus, I.Zhari, M.N. Noramin, F.Sahena, A.K. Mohd Omar, (2010)  Supercritical carbon dioxide fractionation of Pithecellobium jiringan Jack seed composition using fast gas chormatograsphy time of flight mass spectrometryJournal of Food Process Engineering, Published on line, 12 Jan 2010.  Volume 34, Issue 2, April 2011, pp. xxx (2010: Impact Factor 0.656)

27.
Ngu Chard Chard, Nik Norulaini N.Abdul Rahman, Abbas F.M.Alkarkhi, Anees Ahmad* and Mohd Omar Abdel Kadir (2010), 'Assessment of major solid wastes generated in Palm oil - Int. J. Environmental Technology and Management, Vol. 13, Nos. 3/4, 2010, 245-252

28.
Sahena, F., Nik Norulaini N.A., Mohd. Omar, A.K., Jinap, S., Zaidul I.S.M. Application of  Supercritical CO2 in lipid extraction - A review. Journal of Food Engineering. Accepted 2009. Volume 95, Issue 2, November 2009, Pages 240-253     
                                                                                    
29.
Mustapa, A. N.; Manan, Z. A.; Azizi, C. Y. Mohd; Norulaini, N. A. Nik; Omar, A. K. Mohd, 2009, Effects of parameters on yield for sub-critical R134a extraction of palm oil, Journal Of Food Engineering, Volume: 95, Issue: 4, Pages: 606-616, DOI: 10.1016/j.jfoodeng.2009.06.025 , DEC 2009

30.
Wong, Y.S., A.K. Mohd Omar, Teng, T.T., Biological kinetics evaluation of anaerobic stabilization pond treatment of palm oil mill effluent. Journal of Bioresource Technology (2009), Volume 100, Issue 21, November 2009, Pages 4969-4975 

31.
I., Norhuda and A. K. Mohd Omar, 2009, Mass Transfer Modeling in a Packed Bed of Palm Kernels under Supercritical Condition. International Journal of Chemical and Biological Engineering, 2:1, pp10-13

32.
Mirmohammadi, Mirtaghi; Ibrahim, M. H.; Ahmad, A.; Kadir, M. O. A.; Mohammadyan, M.; Mirashrafi, S. B, Risk Assessment Of Hexamethylen Diisocyanate And Hexamethylene Diamine. In The Polyurethane Factories, Pakistan Journal Of Medical Sciences  Volume: 25   Issue: 4   Pages: 613-618   Published: JUL-SEP 2009

33.
Pang, F.M., Teng, S.P., Teng, T.T., and Mohd Omar, A.K., Heavy metals removal by hydroxide recipitation and coagulation-flocculation methods from aqueous solutions. Water Quality Research. Journal of Canada(2009) Vol.44, Issue 2, pages 174-182

34.
M. Mirmohammadi., M. Hakimi Ibrahim., Anees Ahmad., A.K. Mohd Omar., M. Mohammadyan., S. B. Mirashrafi. Indoor air pollution evaluation with emphasize on HDI and biological assessment of HDA in the polyurethane factories. Envi Monit Assess. May 2009. Vol. 165, no1-4, pp. 341-347

35.
M. Mirmohammadi., M. Hakimi Ibrahim., Anees Ahmad., A.K. Mohd Omar., M. Mohammadyan., S. B. Mirashrafi. Evaluation of mthylene diphenyl diisocyanate as an indoor pollutant and biological assessment of methylene dianiline in the polyurethane factories. Indian Journal of Occupational & Environmental Medicine. April 2009. Vol 13, Issue 1, pp.38-42

36.
Nur Fadzilah Basri, Fauziah Aziz. Mohd Omar A.K. & Nik Norulaini, A.R., Olymorph Identification Studies on Cocoa Butter from Sabah, Journal of nuclear and Related Technologies, Vol. 6, No. 1 (special Edition) 2009, pp159-164

37.
Raid Shatat1*, Azlan Ariffin2, Nik Norulaini Abdul Rahmanand Mohd Omar Abdul Kadir, The Effect Of Molecular Weight And Charge Density On Floc Size Distribution Of Palm Oil Mill Effluent Flocculated With Cationic Polyelectrolytes. 2008. Vol 4, No.2, pp95-103, Journal of Basic and Applied Sciences.

38.
Najafpour, Sh., Alkharki, A.F.M., Kadir, M.O.A., Najafpour, Gh, D., Evaluation of Spatial and Temporal Variation in River Water Quality, International Journal of Environmental. 2008. Vol 2, No. 4, Autumn, pp. 349-358

39.
N.A. Nik Norulaini, W.B. Setianto, I.S.M. Zaidul, A.H. Nawi, C.Y.M. Azizi, A.K. Mohd. Omar. Effects of supercritical carbon dioxide extraction parameters on virgin coconut oil yield and medium chain triglyceride content. Journal of Food Chemistry. Accepted 2009. Volume 116, Issue 1, 1 September 2009, Pages 193-197                  
                                             
40.
N.A. Norulaini, O.Anuar, F.M.A Abbas, M.O. Fatehah, A.K. Mohd Omar, F. Sahena, I.S.M. Zaidul. Optimization of Supercritical CO2 Extraction of Anastatica hierochuntica. Journal of Food and Bioproduct Processing. Accepted 2009 Volume 87, Issue 2, June 2009, Pages 152-158.    
            
41.
N. A. Nik Norulaini, O. Anuar, A. K. M. Omar, Abbas F. M. Al-Karkhi, Wahyu B. Setianto,  Fatehah M.O, Sahena F., I.S.M. Zaidul, Optimization of SC-CO2 extraction of zerumbone from Zingiber zerumbet (L) SmithFood Chemistry, Accepted 2008. Volume 114, Issue 2, 15 May 2009, Pages 702-705. Impact factor: 2.532

42.
I., Norhuda and A. K. Mohd Omar and Che Yunus, Mohd Azizi (2008) Determination of overall mass transfer coefficient of palm kernel extracted using supercritical carbon dioxide. Journal of Chemical and Natural Resources Engineering – Sustainable Process for Natural Resources, 2. pp. 64-72. ISSN1823-5255

43.
N.A. Nik Norulaini,  Anees Ahmad, Fatehah Mohd Omar, Adel Ashur S. Banana,  I.S. Md Zaidul and Mohd Omar Ab Kadir,  Sterilization and extraction of palm oil from screw pressed palm fruit fiber using supercritical carbon dioxide, Separation and Purification Technology,  (2008)  Volume 60, Issue 3, pp272-277. Impact factor  2.497

44.
C.Y. Mohd Azizi, Z. Salman, N.A. Nik Norulaini, A.K. Mohd Omar, 2008. Extraction And Identification Of Compounds From Parkia Speciosa Seeds By Supercritical Carbon Dioxide. Journal of Chemical and Natural resources Engineering, Special Edition: 153.-163.

45.
Zaidul, I.S.M.,  Nik Norulaini, N.A, A.K. Mohd Omar, Sako, Y. Yamauchi, H, and Noda T., (2007)   Correlations of the Composition, Minerals, and RVA Pasting Properties of Various potato starches, Staerke  Vol. 59, Issue 6, pp 269-276 (Impact Factor 1.136) 

46.
Zaidul, I.S.M.,  Nik Norulaini, N.A, A.K. Mohd Omar, Sako, Y. Yamauchi, H, and Noda T., (2007)   RVA analysis  of mixtures of wheat flour and potato, sweet potato, yam and cassava starches.  Accepted and available on line, Carbohydrate Polymers   69 (4), 784-791 (Impact Factor : 1.583)

47.
Zaidul, I.S.M.,  Nik Norulaini, N.A, A.K. Mohd Omar, Sako, Y. And Smith R.L. Jr., (2007). Separation of Palm Kernel oil from palm kernel with supercritical carbon dioxide using pressure swing technique, Journal of Food Engineering, 89, 419-428 (Impact factor 1.678)

48.
Zaidul, I.S.M., Nik Norulaini, N.A., Mohd Omar, A.K., Smith R.L. Jr, (2007) Supercritical carbon dioxide (SC-CO2) extraction of palm kernel oil from palm kernel,Journal of Food Engineering, Vol 79(3), pp1007-1014    (Impact factor 1.678)

49.
Zaidul, I.S.M.,  Nik Norulaini, N.A, and  A.K. Mohd Omar, Smith R.L.   Jr., (2007)  Blending of supercritical  CO2 extracted palm kernel oil fractions and palm oil to obtain cocoa butter replacers.   Journal of Food Engineering. Vol 78, (4,) pp1397-1409   (Impact factor 1.678)

50.
H.P.S.Abdul  Khalil, M. Siti Alwi, and A.K. Mohd Omar (2006). Chemical Composition, Anatomy, Lignin Distribution and Cell Wall structure of Malaysian Plant Waste Fibers.Bioresource 1 (2), 220-232.  

51.
Zaidul, I.S.M.,  Nik Norulaini, N.A, and  Mohd Omar, A.K. (2006),  Separation/fractionation of triglyserides in terms of fatty acid constituents in palm kernel oil using supercritical CO2,  Journal of Science of Food and Agriculture86 (7), 1138-1145  (Impact Factor 1.086)

52.
Zaidul, I.S.M., Nik Norulaini, N.A., Mohd Omar, A.K., Smith R.L. Jr, (2006)  Supercritical carbon dioxide (SC-CO2) extraction and fractionation of palm kernel oil from palm kerenl as cocoa butter  repalcers blend.  Journal of Food Engineering, Vol 73(3) 210-216.  (Impact factor 1.678)

53.
P.Y.Ooi, T.T.Tow, A.K. Mohd Omar and N.A.R. Nik Norulaini, (2005) Removal of Dyes by Aqueous Mixed Coagulants, Asian Journal of Chemical Engineering, 2005 Vol 5, No 1, pp 52-64

54.
Ariffin A., Raid S.A. Shatat, Nik Norulaini A.R., and Mohd Omar A.K.(2005) The Effect of Dosage and pH on Floc  Size of Plam Oil Mill Effluent Flocculated with Cationic PolyacrylamideAmerican Journal of Applied Science 1 (4), ISSN 1546-9239 

55.
Ariffin A., Raid S.A. Shatat, Nik Norulaini A.R., and Mohd Omar A.K.  (2004) Synthesis and Characterization of Different Molecular Weight Polyacrylamide    Euro Asian Journal of Applied Sciences 1(2) 14-21

56.
Ariffin A., Raid S.A. Shatat, Nik Norulaini A.R., and Mohd Omar A.K., (2004)   Synthetic Polyacrylamide based on Acrylamide and their Application as a Flocculant in the Treatment of Palm Oil Mill Effluent   Journal of Applied Sciences 4 (3)  393-397

57.
Md Zaidul I.S., Abd Karim. A. Mana, D.M.A.,  Azlan, A., Nik Norulaini N.A. and  Mohd Omar, A.K.  (2004)  A Farinograph Study on Viscoelastic Properties of Mixtures of Sago-Wheat Dough Systems.  Journal of  the Science of Food and Agriculture.  84:616-622

58.
N.A. Nik Norulaini, I.S.  Md. Zaidul, O. Anuar, A.K. Mohd Omar,  (2004) Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO), Separation and Purification Technology    Vol 35,  pp55-60

59.
N.A. Nik Norulaini, I.S.  Md. Zaidul, O. Anuar, A.K. Mohd Omar, (2004)  Supercritical reduction  of lauric acid in palm kernel oil (PKO)  to produce cocoa butter equivalent (CBE) Fat,  Journal of Chemical Engineering Japan    Vol 37,  No 2,  pp194-203.

60.
Ahmad Zuhairi Abdullah, Mohamad Hakimi Ibrahim, and Mohd Omar Ab. Kadir., Treatment of Palm Oil Mill Effluent (POME) Supernatants using Aerobic Attached-growth System:Trickling Filter as a Case Study, Jurnal Teknologi, 40(F), Jun 2004, pp77-90

61.
A. Ariffin.,  Raid S.A. Shatat,  A.R Nik Norulaini, and A.K  Mohd Omar (2005)   Synthetic Polyeelctrolytes of varying charge densities but similar molar mass based on acrylamide and their applications on palm oil mill effluent treatment Desalination   Vol 173, 3, pp201-208, 2005 

62.
Nik Norulaini Nik Ab Rahman, Rahmad Setia Budi, and Mohd Omar Abd Kadir, (2004)  Major Chemical Constituents of Candle Nut Oil Extract Using Supercritical  Carbon Dioxide,  Malaysian Journal of Pharmaceutical Science  2004,  Vol 2: No 1, 61-72.

63.
Nik Norulaini Nik Ab Rahman, Zarina Zakaria and Mohd Omar Ab Kadir, (2003) Influence of elicitor availability on limonene and linalool accumulation from Citrus grandis Cell cultures, (2003) Malaysian Journal of Pharmaceutical Science   Volume 1, pp39-50.

64.
Nik Norulaini N.A, Zarina Zakaria and Mohd Omar A. K., (2003)  Influence of mevalonic acid and linalool on limonene accumulation in callus tissues of Citrus Grandis Osbeck,   Biotropia,  No 20, pp24-35

65.
Md  Zaidul, A.Abd. Karim, D.M.A. Manan,  Nik Norulaini, N.A. and A.K. Mohd Omar, (2003) Pasting Properties of Mixtures of Sago and Wheat Flour, Asean Food Journal Vol 6.No 3. pp431-442

66.
I.S. Md Zaidul, A.Abd. Karim, D.M.A. Manan,  A.Ariffin, Nik Norulaini, N.A. and A.K. Mohd Omar  (2003)  Stress relaxation test for sago-wheat mixtures gel. International Journal of Food Properties Vol 6 (3) pp 431-442

67.
I.S. Md Zaidul, A.Abd. Karim, D.M.A. Manan,  A.Ariffin, Nik Norulaini, N.A. and A.K. Mohd Omar  (2002 ). Study of Rheological Profile Analysis Related to Texture for Mixtures of Sago-Wheat Gel International Journal of Food Properties  Vol. 5 (3) pp 585-598

68.
C.O. Onyia, A.M. Uyub, J.C. Akunna,   N.A.Norulaini and A.K.M. Omar , 2001, Increasing the fertilizer value of palm oil mill sludge: bioaugmentation in nitrification. Water Science and Technology(2001)  Vol 44 No 10 pp 157 – 162

69.
Nizar H., Nik Norulaini N.A.R  and A.K. Mohd OmarThe Effect of Dehulling on Supercritical Extraction of Palm Kernel Oil.  Journal Chemical Engineering of Japan (2001) Vol 34. Pp 407-410.

70.
Nik Norulaini, N.A.R.   Ahmad Zuhairi, A., Muhammad Hakimi, I., Mohd Omar, A.K. ,Chemical Coagulant on Settleable Solid-free Palm Oil Mill Effluent (POME) for Organic Load Reduction, Journal of Industrial Technology  10(1), 2001, pp 55-72

71.
Nik Norulaini, N.A.R.   Ahmad Zuhairi, A., Muhammad Hakimi, I., Mohd Omar, A.K. ,Treatment of Palm Oil Mill Effluent (POME) using Attached Film Bioreactor: trickling Filter as A case Study.Journal of Industrial Technology  10(1), 2001, pp41-54

72.
Norli I.,  Nik Norulaini N.A.R, and  A.K. Mohd Omar The Use  of Natural  Bacteria to Accelerate  the Extended  Aeration treatment of Deammoniation latex Effluent,  Journal of Bioscience, 2001 Vol 12, Issue 1, 2001 pp16-24

73.
B.H.Tan, T.T.Teng and A.K. Mohd OmarRemoval of Dyes and Industrial Dye Wastes by Magnesium Chloride. Water Research. 34, 597 (2000).

74.
Nizar H., Nik Norulaini and A.K. Mohd Omar, Simple Fractionation Through the Supercritical Carbon Dioxide Extraction of Palm Kernel Oil. Separation and Purification Technology. 19, 113 - 120, (2000)

75.
Norli. I, Nik Norulaini and A.K. Mohd. Omar, The Use of Natural Bacteria to Accelerate The Extended Aeration Treatment of Mixed Latex Effluent. Journal of Rubber Research. Vol 3. (1) pp 34-41 (2000).

76.
Salleh. B, Nik Norulaini and A.K. Mohd Omar, In Vitro Inoculation of Asparagus Officinalis Tissue Culture Shoot With Fusarium Proliferum. Journal Biotropia 12, 53 (1999).

77.
Norli. I, Nik Norulaini and A.K. Mohd. Omar, Biodegradation Kinetics in Bioaugmentation Extended Aeration for Latex Effluent. Journal of Rubber Research. 2, 212 (1999).

78.
Nizar. H, Nik Norulaini and A. K. Mohd. Omar, Major Chemical Constituents of Supercritical Carbon Dioxide Extract of Pandanus Odorus Leaves. Journal of Natural Product Sciences. 5, 75 (1999).

79.
Jenimar, Nik Norulaini N.A.R and  Mohd  Omar Kadir , Comparison of Different Callus Age  of Citrus grandis  on the production of Secondary Metabolites,   Jurnal Penelitian Pertanian,  11,  Vol 18, No. 1, June 1999

80.
Jenimar, Nik Norulaini N.A.R and A. K. Mohd. Omar, Diameter Buah Limau Bali Muda (Citrus Grandis) yang berbeda ukurannya sebagai Sumber Eksplan. Kultura, Fakultas Pertanian Universiti Sumatera Utara. Indonesia. 44, 41 (1998).

81.
Rahim,.A and A.K. Mohd Omar,  Hydrology and Water Resource Management of Sungai Perlis, Sungai Perai and Sungai Juru. Kam. S.P., Journal Ensearch 10, 161 (1997).

82.
Nik Norulaini and A.K. Mohd Omar, Teleconferencing: What it Takes to be a Good Facilitator.Journal of Higher Education, 3, 51 (1996).

83.
M.Y. Fuad, Z. Ismail, Z.A.M. Ishak and A.K.Mohd Omar, Thermal Properties of Polypropylene/Rice Husk Ash Composites. Polymer International, 38, 33 (1995).

84.
M.Y. Fuad, Z.A.M. Ishak and A.K. Mohd Omar, Application of Rice Husk Ash as Fillers in Polypropylene: Effect of Titanate, Zirconate and Silane Coupling agents.  European Polymer Journal,  31, 885 1995.

85.
M.Y. Fuad, Z.A.M. Ishak and A.K. Mohd Omar, Mechanical Properties of Rice Husk Ash/Polypropylene Composites. Polymer Journal  2, 1002 (1995).

86.
M.Y. Fuad, B.M. Ariff, M.S. Mansor, Z.A.M. Ishak and  A.K. Mohd Omar, Quantitative Analysis of Rice Husk Ash Filler in Polypropylene Composites by FTIR Technique, Journal of Industrial Technology, 5, 41 (1995).

87.
M.Y. Fuad, Z.A.M. Ishak and A.K. Mohd OmarDetermination Of Filler Content By FTIR Analysis.  Journal of Applied Polymer Science, Vol. 56,  1557 (1995)

88.
Noryati. I, O. Abd. Malik  and A.K. Mohd. OmarThe Cholestrerol Content of Local Marine Prawn Species, ASEAN FOOD Journal10. 39 (1995).

89.
A.M.A. Ramadan and A.K. Mohd Omar, Oxygenates for Reducing Automobile Emissions.  The Journal of The Environmental Management and Research Association of Malaysia , 8, 21(1994).

90.
F.B. Mohamad, A.Z. Said, Nik Norulaini and A. K. Mohd Omar, The Effect of Size and Treatment Method on the Conversion of Dried Cattle Hide into Glue. Journal of Bioscience5, 12 (1994).

91.
M.Y. Fuad, Z.A.M. Ishak and  A.K. Mohd OmarRice Husk Ash and Oil Palm as Fillers in Polypropylene: Filler Content Determination By  Thermogravimetric Analysis, Journal of Industrial Technology, 4, 53 (1994).

92.
M.Y. Fuad, Z.A.M. Ishak and A.K. Mohd OmarRice Husk Ash Based Silica As Filler in Polypropylene Composite: Effect of Peroxide Containing Silane on the Rheological Behaviour. Journal of Elastomer and Plastic, 26, 252 (1994).

93.
M.Y. Fuad, Z.A.M. Ishak and  A.K. Mohd Omar,  Determination of Filler Content in Rice Husk Ash and Wood  Based Composite By Thermogravimetric Analysis, Journal of Applied Polymer Science, 51, 1875 (1994).

94.
M.Y. Fuad, S. Roslan, Z.A.M. Ishak and A.K. Mohd Omar, Rice Husk Ash As Fillers in Polypropylene: Effect of Epolen Wax and Silane Coupling Agents. Plastic, Rubber and Composites Processing and Application Journal, 21, 225 (1994).

95.
M.Y. Fuad, J.Mustafah, Z.A.M. Ishak and A.K. Mohd Omar. Application of Rice Husk Ash As Fillers in Polypropylene, Journal of Industrial Technology 3, (1993).

96.
M.Y. Fuad, J.Mustafah, Z.A.M. Ishak and A.K. Mohd Omar. Application of Rice Husk Ash as Fillers in Polypropylene: Effect of Silane Coupling Agents (Prosil 2020 and Prosil 9234) ASEAN Journal on Science and Technology for Development, Vol. 11, 115 (1994).

97.
M.Y. Fuad, J.Mustafah, Z.A.M. Ishak and A.K. Mohd Omar. Rice Husk Ash as Fillers in Polypropylene:  A Preliminary Study. International Journal of Polymeric Materials, Vol.19 .75-92, (1993).

98.
M.Y. Fuad, J.Mustafah, Z.A.M. Ishak and A.K. Mohd Omar. Density Measurement of Rice Husk Ash Filler Particles in Polypropylene Composites. Journal Polymer Testing, 12 107-112, (1993)

99.
R.Richards, T.Warrington and A.K. Mohd Omar, A Modification of the Apparatus for a Heat Capacity Ratio of Gases Experiment,  Journal of Chemical Education, 3, 374 (1987).