2019 – Journal of Oil Palm Research

RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 281-285

EFFECT OF FLOW RATE AND CONCENTRATION OF CARBAMIDE ON THE REDUCING NOx EMISSIONS IN PALM BIODIESEL FUELED RESEARCH ENGINE

SIVA, R* and YUVARAJAN DEVARAJAN**
DOI: https://doi.org/10.21894/jopr.2018.0048 | Published Online: 04 October 2018
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 315-320

AN RFLP MARKER, CB75A, PREDICTS FOR PALMITIC ACID CONTENT ACROSS SELECTED OIL PALM GERMPLASM AND INTERSPECIFIC-HYBRIDS

ZULKIFLI, Y*; MAIZURA, I*; RAJINDER, S*; MARHALIL, M*; MOHD DIN, A* and ONG-ABDULLAH, M*
DOI: https://doi.org/10.21894/jopr.2018.0061 | Published Online: 15 January 2019
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 294-303

THE EFFECTS OF POLYGLYCEROL ESTERS ON PALM OLEIN FRACTIONATION

YOONG JUN HAO*; SAW MEI HUEY*; YEOH CHEE BENG*; SIVARUBY KANAGARATNAM*; LUQMAN CHUAH ABDULLAH** and THOMAS CHOONG SEAN YAW**
DOI: https://doi.org/10.21894/jopr.2019.0015 | Published Online: 16 May 2019
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 204-211

IDENTIFICATION OF RELIABLE REFERENCE GENES FOR GENE EXPRESSION STUDIES OF OIL PALM PLANTLETS USING NORMFINDER AND BESTKEEPER ALGORITHMS

MUHAMAD AFIQ, A H*; SHAHARUDDIN, N A** and ZUBAIDAH, R*
DOI: https://doi.org/10.21894/jopr.2019.0010 | Published Online: 23-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 304-314

EFFECT OF SUPERFATTING AGENTS ON SOAPS PROPERTIES

SYLVIA E BENJAMIN* and AMIR ABBASS**
DOI: https://doi.org/10.21894/jopr.2019.0019 | Published Online: 31-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 286-293

STABILITY OF PALM OLEIN WITH OR WITHOUT ANTIOXIDANTS DURING INDUSTRIAL CONTINUOUS DEEP-FAT FRYING OF WHEAT SNACKS

DÍAZ-SÁNCHEZ, F*; SANTOS-LÓPEZ, E M**; SOSA-MORALES, M E‡; RAMÍREZ-CORONA, N*; PALOU, E* and LÓPEZ-MALO, A*
DOI: https://doi.org/10.21894/jopr.2019.0017 | Published Online: 12-Jun-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 262-270

INTEGRATION OF LATEX TIMBER CLONE RUBBER AFFECTS THE OIL PALM YIELD

NORKASPI KHASIM* and RAJA ZULKIFLI RAJA OMAR*
DOI: https://doi.org/10.21894/jopr.2019.0011 | Published Online: 27-Jun-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 195-203

ISOLATION OF HIGH QUALITY TOTAL RNA FROM VARIOUS TISSUES OF OIL PALM (Elaeis guineensis) FOR REVERSE TRANSCRIPTION QUANTITATIVE REAL-TIME PCR (RT-qPCR)

ONG, P W*; CHAN, P-L*; OOI, L C L* and SINGH, R*
DOI: https://doi.org/10.21894/jopr.2019.0014 | Published Online: 21-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 212-219

MUTAGENIC EFFECTS OF GAMMA IRRADIATION ON OIL PALM (Elaeis guineensis Jacq.) SEEDLING GERMINATION AND GROWTH

DICKSON OSEI DARKWAH*; ESSIE T BLAY**; HARRY M AMOATEY‡; DANIEL AGYEI-DWARKO*; ENOCH SAPEY* and MEILINA ONG-ABDULLAH‡‡
DOI: https://doi.org/10.21894/jopr.2019.0020 | Published Online: 21-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 321-330

A TOOL FOR MONITORING Trichoderma AND Fusarium oxysporum f.sp. elaeidis OIL PALM INTERACTIONS, USING CONSTITUTIVE AND INDUCIBLE GREEN FLUORESCENT PROTEIN (GFP) AND RED FLUORESCENT PROTEIN (DsRED) REPORTER SYSTEM

RUSLI, M H*; IDRIS, A S* and COOPER, R M**
DOI: https://doi.org/10.21894/jopr.2019.0009 | Published Online: 23-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 271-280

EVALUATION OF CHEMICAL AND BIOLOGICAL TREATMENTS TO DEGRADE OIL PALM EMPTY FRUIT BUNCHES (Elaeis guineensis Jacq.) AND THEIR POTENTIAL USE

JESUS DAVID CASTANO*; CRISTHIAN CAMILO CRESPO* and ESPERANZA TORRES*
DOI: https://doi.org/10.21894/jopr.2019.0016 | Published Online: 24-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 238-247

PHYTOL-CONTAINING SEAWEED EXTRACTS AS CONTROL FOR Ganoderma boninense

SYAMIMI DIYANA ABDUL AZIZ*; NUR FAZIRAH JAFARAH* and ZETTY NORHANA BALIA YUSOF**
DOI: https://doi.org/10.21894/jopr.2019.0018 | Published Online: 27-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 248-261

PYRACLOSTROBIN SUPPRESSED Ganoderma BASAL STEM ROT (BSR), PROMOTED PLANT GROWTH AND INDUCED EARLY EXPRESSION OF β-1,3-GLUCANASE IN OIL PALM (Elaeis guineensis)

NURFAEZAH SAID*; DZOLKHIFLI OMAR*; ABBAS NASEHI** and MUI-YUN WONG**
DOI: https://doi.org/10.21894/jopr.2019.0021 | Published Online: 28-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 220-237

cDNA-SSR MARKERS FOR MOLECULAR EPIDEMIOLOGY OF Ganoderma boninense

TUNG HUN JIAT*; SITA ASTARI**; GOH YOU KENG‡; GOH KAH JOO‡ and WONG WEI CHEE*
DOI: https://doi.org/10.21894/jopr.2019.0012 | Published Online: 31-May-19
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RESEARCH ARTICLE
Vol. 31 (2) June 2019, p. 165-194

OIL PALM ECONOMIC PERFORMANCE IN MALAYSIA AND R&D PROGRESS IN 2018 – Review Article

KUSHAIRI, A*; MEILINA ONG-ABDULLAH*; BALU NAMBIAPPAN*; ELINA HISHAMUDDIN*; MOHD NOOR IZUDDIN ZANAL BIDIN*; RAZMAH GHAZALI*; VIJAYA SUBRAMANIAM*; SHAMALA SUNDRAM* and GHULAM KADIR AHMAD PARVEEZ*
DOI: https://doi.org/10.21894/jopr.2019.0026 | Published Online: 25-Jun-19
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Vol. 31 (4) December 2019, p. 657-661

A DESCRIPTION OF OPEN TOP CHAMBER SYSTEM FOR OIL PALM CARBON DIOXIDE ENRICHMENT

AMANINA, N S*; KHO, L K*; LINATOC, A C**, A’FIFAH, A R* and HANIFF, M H*
DOI: https://doi.org/10.21894/jopr.2019.0013 | Published Online: 23 May 2019
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Vol. 31 (4) December 2019, p. 540-549

IDENTIFICATION OF GENES PREFERENTIALLY EXPRESSED IN MESOCARP TISSUE OF OIL PALM USING in silico ANALYSIS OF TRANSCRIPTS

SITI SURIAWATI BADAI*; KUANG-LIM CHAN*; PEK-LAN CHAN*; GHULAM KADIR AHMAD PARVEEZ* and OMAR ABD RASID*
DOI: https://doi.org/10.21894/jopr.2019.0022 | Published Online: 31 May 2019
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Vol. 31 (4) December 2019, p. 641-650

ENERGY CONSUMPTION DURING TRANSPORTATION ALONG THE PALM OIL SUPPLY CHAIN IN MALAYSIA

FAUZIAH ARSHAD*; VIJAYA SUBRAMANIAM*; BALU NAMBIAPPAN*; AZMAN ISMAIL* and SUMIANI YUSOFF**
DOI: https://doi.org/10.21894/jopr.2019.0024 | Published Online: 31 July 2019
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Vol. 31 (4) December 2019, p. 670-680

INFLUENCE OF SURFACTANT STRUCTURE ON PHYSICAL STABILITY AND PHYSICOCHEMICAL PROPERTIES OF INSECTICIDE EMULSIONS

SUMAIYAH MEGAT NABIL MOHSIN*; ISMAIL AB RAMAN*; ZAFARIZAL ALDRIN AZIZUL HASAN* and ZAINAB IDRIS*
DOI: https://doi.org/10.21894/jopr.2019.0025 | Published Online: 17 October 2019
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Vol. 31 (4) December 2019, p. 634-640

DEVELOPMENT OF ANALYTICAL METHOD FOR DETERMINATION OF THIOSULTAP-DISODIUM RESIDUE IN PALM OIL MATRIX

CHEE BENG YEOH*; FARAH KHUWAILAH AHMAD BUSTAMAM*; NAJWA SULAIMAN*; NIK SASHA KHATRINA KHAIRUDDIN*; MENG GUAN TAY** and MEI HUEY SAW*
DOI: https://doi.org/10.21894/jopr.2019.0028 | Published Online: 17 October 2019
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Vol. 31 (4) December 2019, p. 662-669

PALM-BASED VITAMIN E (tocotrienol-rich fraction) HAS EXCELLENT STABILITY IN CHEWABLE TABLET AFTER ONE-YEAR OF STORAGE AT AMBIENT TEMPERATURE

NOOR LIDA HABI MAT DIAN*; WAN SUET YING**; FU JU YEN*; PUVANESWARI MEGANATHAN*; NIK MOHD AZNIZAN NIK IBRAHIM*; NORAZURA AILA MOHD HASSIM*; HELMI WASOH** and LAI OI MING‡
DOI: https://doi.org/10.21894/jopr.2019.0023 | Published Online: 18 October 2019
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Vol. 31 (4) December 2019, p. 624-633

SYNTHESIS OF GLYCEROL TRILEVULINATE ESTER: EFFECT OF REACTION PARAMETERS

NIK SITI MARIAM NEK MAT DIN*; YEONG SHOOT KIAN*; HOONG SENG SOI*; ARNIZA MOHD ZAN*; SRIHANUM ADNAN* and RAHIMI M YUSOP**
DOI: https://doi.org/10.21894/jopr.2019.0027 | Published Online: 24 October 2019
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Vol. 31 (4) December 2019, p. 572-581

INDUCED SYSTEMIC RESISTANCE AND PROMOTION OF PLANT GROWTH IN OIL PALM SEEDLINGS BY ENDOPHYTIC Trichoderma virens

FARAH AMIRA MD PAUDZAI*; SHAMALA SUNDRAM**; MOHD TERMIZI YUSOF*; LEE PEI LEE ANGEL**; AMALIA MOHD HASHIM‡ and SITI NOR AKMAR ABDULLAH‡‡
DOI: https://doi.org/10.21894/jopr.2019.0031 | Published Online: 30 October 2019
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Vol. 31 (4) December 2019, p. 561-571

SureSawit^TM TRUE-TO-TYPE – A HIGH THROUGHPUT UNIVERSAL SINGLE NUCLEOTIDE POLYMORPHISM PANEL FOR DNA FINGERPRINTING, PURITY TESTING AND ORIGIN VERIFICATION IN OIL PALM

LESLIE CHENG-LI OOI*; ENG-TI LESLIE LOW*; JARED ORDWAY**; MARHALIL MARJUNI*; ZULKIFLI YAAKUB*; NAN JIANG**; STEVE SMITH±; BLAIRE BACHER**; PEGGY A GARNER**; MICHAEL T LEINENGER**; NATHAN SANDER**; PEK-LAN CHAN*; PEI WEN ONG*; MEILINA ONGABDULLAH*; RAJANAIDU NOOKIAH*; MOHAMAD ARIF ABD MANAF*; NATHAN LAKEY**; RAVIGADEVI SAMBANTHAMURTHI* and RAJINDER SINGH*
DOI: https://doi.org/10.21894/jopr.2019.0048 | Published Online: 14 November 2019
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Vol. 31 (4) December 2019, p. 592-603

THE POTENTIAL OF ENDOPHYTIC Trichoderma FROM OIL PALM (Elaeis guineensis Jacq.) ROOTS OF NORTH SUMATRA, INDONESIA AGAINST Ganoderma boninense

DEDEK HARYADI*; MANJIT S SIDHU**; TUMPAL PANJAITAN**; HADI HENDRA** and KHIM PHIN CHONG*
DOI: https://doi.org/10.21894/jopr.2019.0049 | Published Online: 25 November 2019
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Vol. 31 (4) December 2019, p. 604-614

SIGNIFICANT QUALITY OF FRAGMENTED FORESTS IN OIL PALM PLANTATIONS: LESSON FROM THE ASSEMBLAGE STRUCTURE OF FROGS (Amphibia: Anura)

RAMLAH ZAINUDIN*; ELVY QUATRIN DEKA*; MUHAMMAD FADZIL AMRAM*; SHARIZATTY MOHD RAIS*; NUR AMIRAH SUNGIF*; MARLY MATLEEN AUGUSTINE AGOH*; NOORAINA ATIRA ALAUDIN*; MOHAMAD AMIRUL AZMI* and JAYASILAN MOHD-AZLAN*
DOI: https://doi.org/10.21894/jopr.2019.0050 | Published Online: 28 November 2019
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Vol. 31 (4) December 2019, p. 615-623

CRUDE GLYCEROL UTILISATION IN MONOLAURIN PRODUCTION USING IMMOBILISED Rhizomucor miehei LIPASE: OPTIMISATION AND THERMODYNAMICS STUDY

NUR ARTIKAH MUHAMMAD SHAHRIN*; PEI WEN CHIN* and NOOR AZIAH SERRI*
DOI: https://doi.org/10.21894/jopr.2019.0054 | Published Online: 28 November 2019
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Vol. 31 (4) December 2019, p. 550-560

DETERMINATION OF REFERENCE GENES FOR NORMALISATION OF GENE EXPRESSION STUDY OF Ganoderma-INFECTED OIL PALMS

LIYANA MOHD ZUHAR*; AHMAD ZAIRUN MADIHAH**; SITI AQLIMA AHMAD*; ZAMRI ZAINAL‡; ABU SEMAN IDRIS** and NOOR AZMI SHAHARUDDIN‡‡
DOI: https://doi.org/10.21894/jopr.2019.0051 | Published Online: 29 November 2019
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SHORT COMMUNICATION
Vol. 31 (4) December 2019, p. 651-656

INVASIVE RUGOSE SPIRALLING WHITEFLY Aleurodicus rugioperculatus MARTIN, A SERIOUS PEST OF OIL PALM Elaeis guineensis IN INDIA

SELVARAJ, K*; VENKATESAN, T*; SUMALATHA, B V* and KIRAN, C M*
DOI: https://doi.org/10.21894/jopr.2019.0052 | Published Online: 29 November 2019
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Vol. 31 (4) December 2019, p. 582-591

EFFECT OF BIOFERTILISER CONTAINING DIFFERENT PERCENTAGE RATES OF CHEMICAL FERTILISER ON OIL PALM SEEDLINGS

NURHAFIZHOH ZAINUDDIN*; MOHD FAHMI KENI* and SHARIFAH AZURA SYED IBRAHIM*
DOI: https://doi.org/10.21894/jopr.2019.0053 | Published Online: 9 December 2019
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Vol. 31 (4) December 2019, p. 529-539

A REVIEW OF DEVELOPMENTS IN INTEGRATED PEST MANAGEMENT (IPM) OF BAGWORM (Lepidoptera: Psychidae) INFESTATION IN OIL PALMS IN MALAYSIA

BRIAN J WOOD* and NORMAN KAMARUDIN**
DOI: https://doi.org/10.21894/jopr.2019.0047 | Published Online: 10 December 2019
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Vol. 31 (3) September 2019, p. 364-380

BAGWORM (Lepidoptera: Psychidae) INFESTATION IN THE CENTENNIAL OF THE MALAYSIAN OIL PALM INDUSTRY – A REVIEW OF CAUSES AND CONTROL –Review Articles

BRIAN J WOOD* and NORMAN KAMARUDIN**
DOI: https://doi.org/10.21894/jopr.2019.0032 | Published Online: 14 August 2019
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ARTICLE IN PRESS
Vol. 31 (3) September 2019, p. 381-393

PROSPECTS IN SUSTAINABLE CONTROL OF OIL PALM PESTS AND DISEASES THROUGH THE ENHANCEMENT OF ECOSYSTEM SERVICES – THE WAY FORWARD –Review Articles

NORMAN KAMARUDIN*; IDRIS ABU SEMAN* and MOHD MAZMIRA MOHD MASRI*
DOI: https://doi.org/10.21894/jopr.2019.0030 | Published Online: 14 August 2019
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Vol. 31 (3) September 2019, p. 448-458

RANCHING AND CONSERVATION OF BIRDWING AND SWALLOWTAIL BUTTERFLY SPECIES IN THE OIL PALM SYSTEMS OF PAPUA NEW GUINEA

BONNEAU, L J G*; ERO, M** and SAR, S*
DOI: https://doi.org/10.21894/jopr.2019.0035 | Published Online: 14 August 2019
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Vol. 31 (3) September 2019, p. 437-447

THE DIVERSITY OF UNDERSTOREY BIRDS IN FOREST FRAGMENTS AND OIL PALM PLANTATION, SARAWAK, BORNEO

JAYASILAN MOHD-AZLAN*; VOON AUDREY MEI FANG*; SALLY SOO KAICHEEN*; LISA LOK* and MICHAEL J LAWES**
DOI: https://doi.org/10.21894/jopr.2019.0033 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 489-495

A CASE STUDY INTO THE SUSTAINABILITY JOURNEY AND BIODIVERSITY CONSERVATION PROJECTS IN SARAWAK BY SARAWAK OIL PALMS BERHAD

JOYCE YIEK LEH CHING*; IVAN CHIRON YAMAN*; KHO LIP KHOON**; CHUA KIAN HONG* and GALAU MELAYONG*
DOI: https://doi.org/10.21894/jopr.2019.0036 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 412-421

ENHANCING SUSTAINABLE OIL PALM CULTIVATION USING COMPOST

LAI GUAN YI*; SITI AISHAH ABD WAHID*; PREMKUMAR TAMILARASAN* and CHEAH SEE SIANG*
DOI: https://doi.org/10.21894/jopr.2019.0037 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 459-467

MAPPING THE CHARACTERISTICS OF TROPICAL FOREST PEAT AND CULTIVATED PEAT UNDER OIL PALM PLANTATION IN SARAWAK, BORNEO

SIONG FONG SIM*; CECELYEA JUMIN* and KHO LIP KHOON**
DOI: https://doi.org/10.21894/jopr.2019.0039 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 508-520

PALM KERNEL SHELL BIOCHAR PRODUCTION, CHARACTERISTICS AND CARBON SEQUESTRATION POTENTIAL

SIENG-HUAT KONG*; SOH KHEANG LOH**; ROBERT THOMAS BACHMANN‡; HARYATI ZAINAL** and KAH YEIN CHEONG*
DOI: https://doi.org/10.21894/jopr.2019.0041 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 480-488

ANALYSIS OF THE UNCERTAINTIES OF THE INCLUSION OF INDIRECT LAND USE CHANGE INTO THE EUROPEAN UNION RENEWABLE ENERGY SOURCES DIRECTIVE II

VIJAYA SUBRAMANIAM*; AINIE KUNTOM*; HARYATI ZAINAL*; SOH KHEANG LOH*; ASTIMAR ABDUL AZIZ* and GHULAM KADIR AHMAD PARVEEZ*
DOI: https://doi.org/10.21894/jopr.2019.0042 | Published Online: 30 August 2019
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Vol. 31 (3) September 2019, p. 496-507

TRANSFORMATION OF OIL PALM INDEPENDENT SMALLHOLDERS THROUGH MALAYSIAN SUSTAINABLE PALM OIL

ROSEARNIDA SENAWI*; NAZIRA KHABIBOR RAHMAN*; NURHANANI MANSOR* and AINIE KUNTOM*
DOI: https://doi.org/10.21894/jopr.2019.0038 | Published Online: 3 September 2019
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Vol. 31 (3) September 2019, p. 422-436

THE ROLE OF FOREST FRAGMENTS IN SMALL MAMMAL CONSERVATION IN AN OIL PALM PLANTATION IN NORTHERN SARAWAK, BORNEO

JAYASILAN MOHD-AZLAN*; SALLY SOO KAICHEEN*; LISA LOK* and MICHAEL J LAWES**
DOI: https://doi.org/10.21894/jopr.2019.0034 | Published Online: 5 September 2019
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Vol. 31 (3) September 2019, p. 521-527

QUANTIFYING TOTAL CARBON STOCK OF MATURE OIL PALM

KHO LIP KHOON*; ELISA RUMPANG*; NORMAN KAMARUDIN* and MOHD HANIFF HARUN*
DOI: https://doi.org/10.21894/jopr.2019.0044 | Published Online: 10 September 2019
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Vol. 31 (3) September 2019, p. 394-411

SOIL BACTERIAL BIODIVERSITY IN DEVELOPMENT OF SECONDARY LOGGEDOVER FOREST TO OIL PALM PLANTATION IN MINERAL SOIL OF BELAGA, SARAWAK

SHAMSILAWANI AHAMED BAKERI*; MOHD SHAWAL THAKIB MAIDIN* and MOHD MAZMIRA MOHD MASRI*
DOI: https://doi.org/10.21894/jopr.2019.0043 | Published Online: 10 September 2019
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Vol. 31 (3) September 2019, p. 468-479

AN ECOSYSTEM SERVICES ANALYSIS OF OIL PALM AND ALTERNATIVE LAND USE SYSTEMS ON PEAT IN MALAYSIA

JOLINE MIDDELBERG*; BADRUL AZHAR**; KHO LIP KHOON‡ and PETER J VAN DER MEER*
DOI: https://doi.org/10.21894/jopr.2019.0040 | FULL TEXT | DOWNLOAD PDF

Vol. 31 (3) September 2019, p. 348-363

INTEGRATED BALANCED FERTILISER MANAGEMENT IN SOIL HEALTH REJUVENATION FOR A SUSTAINABLE OIL PALM CULTIVATION: A REVIEW –Review Articles

SHAMALA SUNDRAM*; LEE PEI LEE ANGEL* and SALWA ABDULLAH SIRAJUDDIN*
DOI: https://doi.org/10.21894/jopr.2019.0045 | Published Online: 17 September 2019
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Vol. 31 (3) September 2019, p. 331-347

LEARNING TO LOVE THE WORLD’S MOST HATED CROP –Review Articles

JACKSON, T A*; CRAWFORD, J W**; TRAEHOLT, C‡ and SANDERS, T A B‡‡
DOI: https://doi.org/10.21894/jopr.2019.0046 | Published Online: 27 September 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 53-66

IDENTIFICATION OF CHELIDONIC ACID AND ASPARAGINE IN Ganoderma boninense- INOCULATED OIL PALM SEEDLINGS

SHAHIRAH BALQIS DZULKAFLI*; ABRIZAH OTHMAN*; SYAHANIM SHAHWAN*; ZAIN NURAZAH*; MOHAMAD ARIF ABD MANAF*; ABU SEMAN IDRIS*; MOHD DIN AMIRUDDIN*; NOOR IDAYU TAHIR* and UMI SALAMAH RAMLI*
DOI: https://doi.org/10.21894/jopr.2019.0008 | Published Online: 4 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 122-129

THEORETICAL APPROACH OF DFT B3LYP/6-31G (d, p) ON EVALUATING THE PERFORMANCE OF tert-BUTYLHYDROQUINONE AND FREE FATTY ACIDS IN INHIBITING THE OXIDATION OF PALM OLEIN

RADIAH ALI*; KU HALIM KU BULAT**; ALYZA A AZMI* and SABIQAH TUAN ANUAR*
DOI: https://doi.org/10.21894/jopr.2019.0005 | Published Online: 8 March 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 86-94

THE EFFECT OF VIBRATION ISOLATOR ON THE MAGNITUDE OF HAND-ARM VIBRATION (HAV) OF THE OIL PALM MOTORISED CUTTER (CANTAS)

ABDUL RAZAK JELANI*; MOHD IKMAL HAFIZI AZAMAN* and MOHD RIZAL AHMAD*
DOI: https://doi.org/10.21894/jopr.2018.0062 | Published Online: 11 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 14-27

MINIMAL INHIBITORY CONCENTRATION OF HYGROMYCIN FOR SELECTING TRANSFORMED OIL PALM EMBRYOGENIC CALLI

ISKANDAR NOR FAKHRANA*; A RAHMAN NURFAHISZA*; OMAR ABD RASID* and GHULAM KADIR AHMAD PARVEEZ*
DOI: https://doi.org/10.21894/jopr.2018.0063 | Published Online: 4 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 159-164

ANTIOXIDANT PROPERTIES OF CRUDE AND COLD ETHANOL PRECIPITATED PROTEIN FROM PALM KERNEL CAKE (PKC) AS POTENTIAL COSMECEUTICAL AGENT

CHOI, W C*; HON, W M**; MOHAMAD, M‡; KOK, A K D X‡; LAI, K S‡‡ and YAP, W S*
DOI: https://doi.org/10.21894/jopr.2019.0002 | Published Online: 4 Mac 2019
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REVIEW ARTICLE
Vol. 31 (1) March 2019, p. 1-13

EFFECTS OF OXIDISED OILS ON INFLAMMATION-RELATED CANCER RISK – Review Article

TAN PEI YEE* and TENG KIM TIU*
DOI: https://doi.org/10.21894/jopr.2019.0007 | Published Online: 4 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 146-158

CHARACTERISATION OF EPOXIDISED TRIMETHYLOLPROPANE TRIOLEATE: NMR AND THERMOGRAVIMETRIC ANALYSIS

MEI YEE CHEONG*; ZAFARIZAL ALDRIN AZIZUL HASAN* and ZAINAB IDRIS*
DOI: https://doi.org/10.21894/jopr.2018.0066 | Published Online: 1 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 110-121

EFFECTS OF PARTIAL REPLACEMENT OF FISH OIL WITH DIFFERENT VEGETABLE OILS ON GROWTH, FEED UTILISATION AND FATTY ACID PROFILE OF HYBRID GROUPER JUVENILE (Epinephelus fuscoguttatus x Epinephelus lanceolatus )

ANNITA SEOK KIAN YONG*; NUR SUHAILAH SYED MUBARAK* and ROSSITA SHAPAWI*
DOI: https://doi.org/10.21894/jopr.2019.0003 | Published Online: 1 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 42-52

EVALUATION OF GFP-BASED SYSTEM FOR PRE-CRYSTALLISATION STUDY OF EgKUP MEMBRANE PROTEINS

MOHD NAQIUDDIN* and MEILINA ONG ABDULLAH*
DOI: https://doi.org/10.21894/jopr.2019.0006 | Published Online: 1 Mac 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 95-109

LOW-TEMPERATURE DIRECTED INTERESTERIFICATION INCREASES TRIUNSATURATED AND TRISATURATED TRIACYLGLYCEROLS OF PALM OIL AND AFFECTS ITS THERMAL, POLYMORPHIC AND MICROSTRUCTURAL PROPERTIES

NOOR LIDA HABI MAT DIAN*; LEE YEE YING**; NIK MOHD AZNIZAN NIK IBRAHIM*; NORAZURA AILA MOHD HASSIM*; SAW MEI HUEY*; TAN CHIN PING‡ and LAI OI MING‡‡
DOI: https://doi.org/10.21894/jopr.2018.0046 | Published Online: 13 February 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 130-137

EFFECT OF EGR & NANOPARTICLES ON PERFORMANCE AND EMISSION CHARACTERISTICS OF A DIESEL ENGINE FUELLED WITH PALM BIODIESEL AND DIESEL BLENDS

GANESAN, S*; DINESHBABU MUNUSWAMY**; PRABHU APPAVU*; ARUNKUMAR, T‡ and YUVARAJAN DEVARAJAN*
DOI: https://doi.org/10.21894/jopr.2018.0065 | Published Online: 14 February 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 73-85

IMPACT ANALYSIS OF CLIMATIC FACTORS ON VEGETATIVE GROWTH, YIELD AND COLD RESISTANCE OF OIL PALM INTRODUCED IN DIFFERENT REGIONS OF GUANGDONG PROVINCE, CHINA

ZENG XIANHAI*; PAN DENGLANG**; LIN WEIFU‡ and LIU ZIFAN*
DOI: https://doi.org/10.21894/jopr.2019.0004 | Published Online: 22 February 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 138-145

PERFORMANCE AND EMISSION ANALYSIS OF DIESEL ENGINE USING THERMAL BARRIER COATING AND ADDITION OF CERIUM OXIDE NANOPARTICLES TO PALM BIODIESEL

THIRUSELVAM, K* and GANESH, V **
DOI: https://doi.org/10.21894/jopr.2018.0060 | Published Online: 25 January 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 67-72

INFLUENCE OF SOIL COMPACTION ON OIL PALM YIELD

ZURAIDAH, Y*
DOI: https://doi.org/10.21894/jopr.2018.0064 | Published Online: 28 January 2019
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RESEARCH ARTICLE
Vol. 31 (1) March 2019, p. 28-41

ISOLATION OF AN OIL PALM CONSTITUTIVE PROMOTER DERIVED FROM UBIQUITIN EXTENSION PROTEIN (uep2) GENE

SUBHI SITI MASURA*; GHULAM KADIR AHMAD PARVEEZ* and OMAR ABD RASID*
DOI: https://doi.org/10.21894/jopr.2019.0001 | Published Online: 13 February 2019
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