Category: 2021-2030

(36 Articles)

RESEARCH ARTICLE
Vol. 33 (3) September 2021, p. 493-513

QUALITY OF COMMERCIAL PALM-BASED COOKING OIL PACKED IN PLASTIC POUCH AND POLYETHYLENE TEREPHTHALATE (PET) BOTTLE

NORAZURA AILA MOHD HASSIM1*; NUR HAQIM ISMAIL1; SIVARUBY KANAGARATNAM1; WAN ROSNANI AWG ISA1 and NOOR LIDA HABI MAT DIAN1
DOI: https://doi.org/10.21894/jopr.2020.0089  |   Published Online: 15 October 2020
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RESEARCH ARTICLE
Vol. 33 (3) September 2021, p. 413-424

PRELIMINARY STUDY ON EFFICIENCY OF DIFFERENT TIME AND LIGHT SOURCE IN LIGHT TRAPS FOR CAPTURING POPULATION OF ADULT OIL PALM BUNCH MOTH, Tirathaba mundella (Lepidoptera: Pyralidae)

MOHAMAD ROSMAN SULAIMAN1*; SAHARUL ABILLAH MOHAMAD1; MOHAMED MAZMIRA MOHD MASRI1; SITI NURULHIDAYAH AHMAD1 and NORMAN KAMARUDIN1
DOI: https://doi.org/10.21894/jopr.2020.0095  |   Published Online: 27 October 2020
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RESEARCH ARTICLE
Vol. 33 (3) September 2021, p. 425-435

IDENTIFICATION AND DETERMINATION OF THE SPECTRAL REFLECTANCE PROPERTIES OF LIVE AND DEAD BAGWORMS, Metisa plana WALKER (Lepidoptera: Psychidae) USING VIS/ NIR SPECTROSCOPY

MOHD NAJIB AHMAD1,2*; ABDUL RASHID MOHAMED SHARIFF2; ISHAK ARIS2; IZHAL ABDUL HALIN2 and RAMLE MOSLIM1
DOI: https://doi.org/10.21894/jopr.2020.0099  |   Published Online: 12 November 2020
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RESEARCH ARTICLE
Vol. 33 (3) September 2021, p. 524-531

DEVELOPMENT OF PALM-BASED VANASPATI (VEGETABLE GHEE): EFFECTS OF CRYSTALLISATION PROCEDURES ON THE PRODUCT TEXTURE

RAFIDAH ABD HAMID1*; SIVARUBY KANAGARATNAM1; NORAZURA AILA MOHD HASSIM1; NUR HAQIM ISMAIL1; WAN ROSNANI AWG ISA1 and NOOR LIDA HABI MAT DIAN1
DOI: https://doi.org/10.21894/jopr.2020.0102  |   Published Online: 24 December 2020
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RESEARCH ARTICLE
Vol. 33 (3) September 2021, p. 514-523

PREDICTION OF ACID, PEROXIDE AND TBA VALUES OF HEAT-TREATED PALM OIL USING A PARTIAL LEAST SQUARES–ORDINARY LEAST SQUARES MODEL BASED ON FOURIERTRANSFORM INFRARED SPECTROSCOPY

KUSNANDAR, F1*; LIOE, H N1; FARIDAH, D N1; ANGGRAENI, R1 and PRICILIA1
DOI: https://doi.org/10.21894/jopr.2020.0106  |   Published Online: 30 November 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. 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 (2) June 2021, p. 347-359

PHASE BEHAVIOUR OF HIGH, MEDIUM AND LOW MELTING FRACTIONS IN LAURIC FAT BLENDS FORMULATED BASED ON MELTING TRIACYLGLYCEROL GROUP

BANGUN NUSANTORO*,**; YANTY NOORZIANNA MANAF#; DAVY VAN DE WALLE*; FILIP VAN BOCKSTAELE* and KOEN DEWETTINCK*
DOI: https://doi.org/10.21894/jopr.2020.0078  |   Published Online: 5 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. 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. 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. 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. 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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