Vol. 33 (1) March 2021 – Journal of Oil Palm Research

REVIEW ARTICLE
Vol. 33 (1) March 2021, p. 1-11

MECHANISING OIL PALM LOOSE FRUITS COLLECTION – A REVIEW

MOHD RAMDHAN KHALID*; ABD RAHIM SHUIB* and NORMAN KAMARUDIN
DOI: https://doi.org/10.21894/jopr.2020.0069 | Published Online: 22 September 2020
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SHORT COMMUNICATION
Vol. 33 (1) March 2021, p. 171-180

A REVIEW ON MALAYSIAN SUSTAINABLE PALM OIL CERTIFICATION PROCESS AMONG INDEPENDENT OIL PALM SMALLHOLDERS

PARTHIBAN KANNAN*; NUR HANANI MANSOR*; NAZIRA KHABIBOR RAHMAN*; TAN SAY PENG* and SITI MARIAM MAZLAN**
DOI: https://doi.org/10.21894/jopr.2020.0056 | Published Online: 10 September 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 151-170

LIFE CYCLE ASSESSMENT OF PALM OIL CLINKER AS A BINDER AND AGGREGATE REPLACEMENT IN CONCRETE

SAZNIZAM SAZMEE SINOH*; ZAINAH IBRAHIM* and FARIDAH OTHMAN*
DOI: https://doi.org/10.21894/jopr.2020.0081 | Published Online: 7 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 140-150

LIFE CYCLE ASSESSMENT FOR THE PRODUCTION OF PALM BIODIESEL

CHEE LIANG YUNG*,**, VIJAYA SUBRAMANIAM* and SUMIANI YUSOFF‡
DOI: https://doi.org/10.21894/jopr.2020.0080 | Published Online: 7 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 129-139

FRYING OIL QUALITY IN FAST FOOD RESTAURANTS IN EAST COAST MALAYSIA: A PRELIMINARY SURVEY

NUR HAQIM ISMAIL*; AZMIL HAIZAM AHMAD TARMIZI*; NORAZURA AILA MOHD HASSIM*; SIVARUBY KANAGARATNAM* and NOOR LIDA HABI MAT DIAN*
DOI: https://doi.org/10.21894/jopr.2020.0071 | Published Online: 22 September 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 119-128

PALM TOCOTRIENOLS CAUSE CLEAVAGE OF POLY-(ADP)-RIBOSE POLYMERASE ENZYME AND DOWN-REGULATION OF CYCLOOXYGENASE-2 PROTEIN LEVEL IN HUMAN BREAST CANCER CELLS

RADHIKA LOGANATHAN*; KANGA RANI SELVADURAY*; KALANITHI NESARETNAM*; AMMU KUTTY RADHAKRISHNAN**,‡
DOI: https://doi.org/10.21894/jopr.2020.0082 | Published Online: 7 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 103-118

POST-TREATMENT OF PALM OIL MILL EFFLUENT USING ZEOLITE AND WASTEWATER

HOSSEIN FARRAJI*,‡; REZA MOHAMMADPOUR*,** and NASTAEIN QAMARUZ ZAMAN*
DOI: https://doi.org/10.21894/jopr.2020.0077 | Published Online: 5 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 93-102

EXTRACTION AND PURIFICATION OF PHYTOSTEROLS MIXTURE FROM PALM FATTY ACID DISTILLATE (PFAD) USING MULTISTAGE EXTRACTION PROCESSES

NOR FAIZAH JALANI*; NOORSHAMSIANA ABDUL WAHAB*; WAN HASAMUDIN WAN HASSAN*; KAMARUDIN HASSAN*; NAHRUL HAYAWIN ZAINAL* and MOHAMAD FAIZAL IBRAHIM**
DOI: https://doi.org/10.21894/jopr.2020.0067 | Published Online: 22 September 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 84-92

USING TERRAIN ALGORITHMS ON A DIGITAL ELEVATION MODEL TO EVALUATE YIELD VARIABILITY IN OIL PALM

ALBERTO MARTINEZ*; JAMES J CAMBERATO*; PHILLIP OWENS** and JENETTE ASHTEKAR*
DOI: https://doi.org/10.21894/jopr.2020.0092 | Published Online: 27 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 74-83

EFFECT OF CATALYSTS ON THE YIELD AND PROPERTIES OF LIGNIN FROM MICROWAVEASSISTED ACETOSOLV EXTRACTION OF OIL PALM EMPTY FRUIT BUNCH FIBRES

MUHAMMAD NOR ARIFIN YAAKOB*, RASIDI ROSLAN*, NURJANNAH SALIM*, SITI NOOR HIDAYAH MUSTAPHA*, SARANI ZAKARIA**, CHIN-HUA CHIA** and MOHD SHAIFUL SAJAB***
DOI: https://doi.org/10.21894/jopr.2020.0076 | Published Online: 5 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 64-73

PERFORMANCE EVALUATION OF A MOTORISED PALM OIL EXTRACTOR WITH QUALITY ASSESSMENT OF THE PALM OIL EXTRACTED IN COMPARISON WITH A MANUAL VERTICAL PRESS

NICHOLAS KIGGUNDU* and JOSEPH JJAGWE*
DOI: https://doi.org/10.21894/jopr.2020.0096 | Published Online: 4 November 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 56-63

HERBICIDE EFFECTS ON Ganoderma boninense INFECTION IN OIL PALM SEEDLINGS

SITI HAZLINA HUSSIN*; IDRIS ABU SEMAN**; MOHD HEFNI RUSLI**; MAIZATUL SURIZA MOHAMED** and ZAITON SAPAK*,#
DOI: https://doi.org/10.21894/jopr.2020.0070 | Published Online: 22 September 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 46-55

ESTIMATING THE YIELD LOSS OF OIL PALM DUE TO Ganoderma BASAL STEM ROT DISEASE BY USING BAYESIAN MODEL AVERAGING

ASSIS KAMU*; CHONG KHIM PHIN**; IDRIS ABU SEMAN‡; DARMESAH GABDA* and HO CHONG MUN*
DOI: https://doi.org/10.21894/jopr.2020.0061 | Published Online: 11 September 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 37-45

ECONOMIC INJURY LEVEL OF OIL PALM BUNCH MOTH, Tirathaba mundella WALKER FOR PEST MANAGEMENT RECOMMENDATIONS IN OIL PALM PRODUCTION

SU CHONG MING*; PATRICIA KING JIE HUNG*; KWAN YEE MING*; ZAKRY FITRI AB AZIZ* and ONG KIAN HUAT*
DOI: https://doi.org/10.21894/jopr.2020.0090 | Published Online: 21 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 21-36

POPULATION DENSITY OF Elaeidobius kamerunicus Faust IN DIFFERENT SPIKELET POSITION AT ANTHESISING MALE INFLORESCENCE OF Elaeis guineensis Jacq. IN SABAH AND SARAWAK, MALAYSIA

SAHARUL ABILLAH MOHAMAD*,**; MUHAMMAD NURUL YAQIN SYARIF*; SITI NURULHIDAYAH AHMAD*; MOHAMED MAZMIRA MOHD MASRI*; KING JIE HUNG** and NORMAN KAMARUDIN*
DOI: https://doi.org/10.21894/jopr.2020.0075 | Published Online: 8 October 2020
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RESEARCH ARTICLE
Vol. 33 (1) March 2021, p. 12-20

A RAPID AND EFFICIENT DNA EXTRACTION PROTOCOL FOR Ganoderma zonatum, A BASAL AND UPPER STEM ROT PATHOGEN OF OIL PALM IN MALAYSIA

JAYANTHI NAGAPPAN*; FAIZUN KADRI*; CHIN CHIEW FOAN**; RICHARD M COOPER‡‡; SEAN T MAY‡; IDRIS ABU SEMAN* and ENG TI LESLIE LOW*
DOI: https://doi.org/10.21894/jopr.2020.0058 | Published Online: 11 September 2020
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Category: Vol. 33 (1) March 2021

(16 Articles)