INSIGHT INTO FATTY ACID-AMINO ACIDS INTERACTIONS IN LIPASE ENZYME CATALYSIS OF TRANSESTERIFICATION REACTION OF PALM OIL USING DENSITY FUNCTIONAL THEORY B3LYP 6-31G(D,P)
OIL PALM ECONOMIC PERFORMANCE IN MALAYSIA AND R&D PROGRESS IN 2023
GHULAM KADIR AHMAD PARVEEZ1*; SOON-SEN LEOW1; NUR NADIA KAMIL1; AHMAD ZAIRUN MADIHAH1; MAIZURA ITHNIN1; MEI HAN NG1; YUSRABBIL AMIYATI YUSOF1 and ZAINAB IDRIS1 DOI: https://doi.org/10.21894/jopr.2024.0037 |
Published Online: 27 June 2024
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A COMPREHENSIVE ASSESSMENT OF COMPOSITION AND NUTRIENT CONTENT IN VARIOUS COMMERCIAL FERTILISERS USED IN INDONESIAN OIL PALM PLANTATIONS
SUKARMAN1,2; LILIK SUTIARSO1*; ANDRI PRIMA NUGROHO1; ARDAN WIRATMOKO1; TAKASHI OKAYASU3; SUWARDI1,4; SEPTA PRIMANANDA5; AHMAD HASANUDDIN4 and HERRY WIRIANATA5 DOI: https://doi.org/10.21894/jopr.2024.0043 |
Published Online: 5 September 2024
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DIETARY INCLUSION OF CRUDE PALM OIL, RED PALM OIL, REFINED PALM OIL, PALM KERNEL OIL AND SOYBEAN OIL ON MODULATION OF INTESTINAL BARRIER INTEGRITY AND IMMUNITY IN LAYING HENS
DELIGNIFICATION METHODS FOR EMPTY FRUIT BUNCH CO-SUBSTRATE IN POME ANAEROBIC DIGESTION: AN EXPERIMENTAL COMPARATIVE ANALYSIS
MUHAMMAD ALPLEX FIRSTONDA KATON2,4; FRENDY RIAN SAPUTRO1; BAMBANG MUHARTO1; ZULAICHA DWI HASTUTI1; ADE SYAFRINALDY1; ALDRIN SANOVA2; MUHAMMAD ILHAM AKBAR2; AGUS KISMANTO1; RINALDI MEDALI RACHMAN2; NURUL AIYSHAH MAZLAN3; AHMAD MUHSIN ITHNIN3 and DHANI AVIANTO SUGENG1* DOI: https://doi.org/10.21894/jopr.2024.0016 |
Published Online: 14 February 2024
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APPLICATIONS OF ORGANIC FUNGICIDES, ENDOPHYTIC BACTERIA, BIOFUNGICIDES, AND BIOSTIMULANTS IN CURATIVE CONTROL OF Ganoderma
DEDEN DEWANTARA ERIS1; AGUSTIN SRI MULYATNI1; IRMA KRESNAWATY1; TRI PANJI1; PRIYONO1; LARASATI MARDHIKA1; KUWAT TRIYANA2 and HAPPY WIDIASTUTI1* DOI: https://doi.org/10.21894/jopr.2024.0012 |
Published Online: 2 February 2024
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EVALUATING THE EFFECT OF LOW AND HIGH TEMPERATURE MODE OF SUBCRITICAL WATER PRE-TREATED EMPTY FRUIT BUNCHES ON CO-DIGESTION PERFORMANCE AND KINETIC STUDY FOR METHANE PRODUCTION
ADILA FAZLIYANA AILI HAMZAH1; MUHAMMAD HAZWAN HAMZAH1,2*; KHAIRUDIN NURULHUDA1,2; HASFALINA CHE MAN1,2; MUHAMMAD HEIKAL ISMAIL3 and PAU LOKE SHOW4,5,6,7 DOI: https://doi.org/10.21894/jopr.2024.0030 |
Published Online: 8 May 2024
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ASSESSMENT OF PARASITIC NEMATODES Elaeolenchus parthenonema POINAR, ON POLLINATING WEEVIL, Elaeidobius kamerunicus AT SELECTED OIL PALM PLANTATIONS IN PAHANG, MALAYSIA
ASSESSING THE PRODUCTIVITY, ECONOMIC AND SUSTAINABILITY IMPACTS OF SHELL DNA TESTING IN INDONESIAN OIL PALM SMALLHOLDINGS IN MUSI BANYUASIN AND PELALAWAN REGENCIES
ISMAIL MASKROMO1; JEANETTE KUMAUNANG1; KRISTIANTO NUGROHO1; A MUIS HASIBUAN2; RERENSTRADIKA TIZAR TERRYANA3; SYAFARUDDIN4; ENGELBERT MANAROINSONG4; MUHAMMAD A BUDIMAN5; ABDUL R PURBA5; NATHAN D LAKEY6; JARED M ORDWAY6 and PUJI LESTARI1* DOI: https://doi.org/10.21894/jopr.2024.0024 |
Published Online: 22 March 2024
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LIGNOCELLULOSIC BIOMASS-DERIVED BIOGAS: A REVIEW ON SUSTAINABLE ENERGY IN MALAYSIA
IZZAH FARHANA AB AZIZ1; HASFALINA CHE MAN1,2,3*; ALI DEMIRCI4; MUHAMMAD HAZWAN HAMZAH1,2; ROZITA OMAR5; NUR SYAKINA JAMALI5; KAMIL KAYODE KATIBI6,7 and ABDULSALAM MOHAMMED3,8 DOI: https://doi.org/10.21894/jopr.2024.0021 |
Published Online: 18 March 2024
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APPLICATION OF SEAWEED EXTRACTS IN OIL PALM (Elaeis guineensis) SEEDLINGS SUBJECTED TO WATER DEFICIT: PHYSIOLOGICAL, BIOCHEMICAL AND ENZYMATIC RESPONSES
MUHAMMAD DANIAL MOKHTARUDDIN1; NUR AIFAA ABD RAZAK1; AISAMUDDIN ARDI ZAINAL ABIDIN1; NOR IZZATI HUSNA NOORHISHAM2; NUR ASNA FAIQAH JOHARI1 and ZETTY NORHANA BALIA YUSOF1,2,3* DOI: https://doi.org/10.21894/jopr.2023.0066 |
Published Online: 27 December 2023
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AN INVESTIGATION OF 30% PALM BIODIESEL BLEND FUEL (B30) UNDER INDONESIAN OPERATING CONDITIONS
IHWAN HARYONO1; R C NUGROHO1; M T SURYANTORO1; HARI SUMARTONO2; SITI YUBAIDAH1; NACEP SURYANA1; BUDI ROCHMANTO1; DEDY INDRIATMONO1; R T SOEWONO1; MUHAMMAD MA’RUF1; K F ADHI SUKRA2; HENRY NOLANDY1; MOKHTAR3; HERU PRIYANTO2; AGUS WAHIDIN1; ADE KURNIAWAN1; VEBRIYANTI HAYOTO2; SUHERMAN MUKTI1; LUKMAN SALAHUDDIN2; P DIAH RIZKY LESTARI4; HARI SETIAPRAJA1* and IMAN K REKSOWARDOJO5,6 DOI: https://doi.org/10.21894/jopr.2024.0013 |
Published Online: 8 February 2024
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FORMULATION OF FORTIFIED MEDIA CONSISTING OF OIL PALM EMPTY FRUIT BUNCH BIOCOMPOST AND OIL PALM KERNEL SHELL BIOCHAR FOR THE ENHANCEMENT OF BIOACTIVE COMPOUNDS IN Centella asiatica (L.) URBAN
IZZA NADIRA ABU BAKAR1, MOHAMAD FAIZAL IBRAHIM1,2*, MANSOR HAKIMAN2, MOHD AZWAN JENOL1, NAHRUL HAYAWIN ZAINAL3, SURAINI ABD-AZIZ1, SEHANAT PRASONGSUK4 DOI: https://doi.org/10.21894/jopr.2023.0039 |
Published Online: 25 August 2023
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BIOLOGY AND BEHAVIOUR OF Elaeidobius kamerunicus FAUST, 1898 (COLEOPTERA: CURCULIONIDAE) IN TWO OIL PALM CULTIVARS IN COLOMBIA
CARLOS ANDRÉS SENDOYA-CORRALES1*; NORMAN FABIAN URREGO-MORALES2; JESÚS DAVID CASTAÑO-MARTINEZ3; ALEX ENRIQUE BUSTILLO4 and ANUAR MORALES RODRÍGUEZ4 DOI: https://doi.org/10.21894/jopr.2023.0048 |
Published Online: 25 September 2023
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THE INFLUENCE OF FLOWERING BENEFICIAL PLANT, Turnera subulata ON THE INSECT NATURAL ENEMIES’ ABUNDANCE IN RELATION TO OIL PALM BAGWORM OCCURRENCE IN BAGAN DATUK, PERAK, MALAYSIA
COMPOSITE OF ZnO/SBE AS CATALYST MATERIALS FOR PHOTODEGRADATION OF RHODAMINE-B
DIAH SUSANTI1*; SHAFIRA MARELLIA1; AZZAH DYAH PRAMATA1; I D A A WARMADEWANTHI2; ERVIN NURHAYATI2; HANIFFUDIN NURDIANSAH1 and JHY-CHERN LIU3 DOI: https://doi.org/10.21894/jopr.2024.0004 |
Published Online: 9 January 2024
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BIOLOGY AND POPULATION DYNAMICS OF ADULT Sagalassa valida WALKER, 1856 (Lepidoptera: Brachodidae), THE OIL PALM ROOT BORER IN COLOMBIA
CARLOS ANDRÉS SENDOYA-CORRALES1; JOSÉ LUIS PASTRANA-SANCHEZ2*; JESÚS ARVEY MATABANCHOY SOLARTE3; ÁLEX ENRIQUE BUSTILLO PARDEY2; MIRIAM ROSERO GUERRERO2 and ANUAR MORALES RODRÍGUEZ2 DOI: https://doi.org/10.21894/jopr.2023.0034 |
Published Online: 8 August 2023
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EFFECTS OF CULTURE MEDIUM AND LIGHT DURATIONS ON THE FUNGAL GROWTH OF Bipolaris sorokiniana
MAIZAN ISMAIL1*; ABDUL SHUKOR JURAIMI2; ABU SEMAN IDRIS1; MOHD HEFNI RUSLI1; RAJA ZULKIFLI RAJA OMAR1; KAMIL A. TOHIRAN1 and MOHD NAQIUDDIN HUSRI1 DOI: https://doi.org/10.21894/jopr.2023.0010 |
Published Online: 9 March 2023
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OIL PALM POLLEN COMPATIBILITY WITH OxG HYBRIDS IN ECUADOR
MARÍA RAQUEL MELÉNDEZ-JÁCOME1; ANDRÉS ALEJANDRO GALVIS-CORREA1; PAMELA ELIZABETH MANTILLA-VALDIVIESO1; FRANCO ESTÉFANO-TOBAR1; MAURICIO ANDRÉS RACINES-OLIVA1; TREVOR ANTHONY JACKSON2 and WILSON VASQUEZ-CASTILLO1* DOI: https://doi.org/10.21894/jopr.2023.0041 |
Published Online: 29 August 2023
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IDENTIFICATION OF THE OIL PALM BAGWORM, Mahasena corbetti TAMS (LEPIDOPTERA: PSYCHIDAE) VIA MOLECULAR TECHNIQUES AND ITS BIOCONTROL ASSAY USING Bacillus thuringiensis
MOHD SHAWAL THAKIB MAIDIN1,2*; AMALIA MOHD HASHIM2,3; NOORHAZWANI KAMARUDIN1; SITI NURULHIDAYAH AHMAD1; MOHAMED MAZMIRA MOHD. MASRI1; RAHA ABDUL RAHIM2,4 AND SYARI JAMIAN5 DOI: https://doi.org/10.21894/jopr.2023.0036 |
Published Online: 8 August 2023
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THE FIRST RECORD OF THE WHITE-THROATED KINGFISHER, Halcyon smyrnensis, BREEDING IN BORNEO, INDONESIA
MUHAMMAD SILMI1; MAHFUD HUDA1; ALI AMRAN1; SURYADI1; MISLAN1; FILA ISTINA MACHID1; ALDINO FAUZIL FANANI1; AGUSTINA KRISTIN HANDAYANI1 and CARL TRAEHOLT2* DOI: https://doi.org/10.21894/jopr.2024.0052 |
Published Online: 19 November 2024
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RENEWABLE ENERGY AND GREENHOUSE GASES EMISSION REDUCTION POTENTIAL OF BIOGAS FROM PALM OIL MILL EFFLUENT
ABU BAKAR NASRIN1,2; ABDUL AZIZ ABDUL RAMAN1,*; MOHAMAD AZRI SUKIRAN2; NURUL ADELA BUKHARI2; ARCHINA BUTHIYAPPAN3; VIJAYA SUBRAMANIAM2; ASTIMAR ABDUL AZIZ2 and SOH KHEANG LOH2 DOI: https://doi.org/10.21894/jopr.2023.0032 |
Published Online: 2 August 2023
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EVALUATION OF OIL PALM FROND FOR BIOBUTANOL PRODUCTION BY DIFFERENT Clostridia SPECIES
ABDURRAHMAN ABUBAKAR1,2; MADIHAH MD SALLEH1*; ADIBAH YAHYA1; HUSZALINA HUSSIN1; CHONG CHUN SHIONG1; SHAZA EVA MOHAMAD1 and SURAINI ABD AZIZ3 DOI: https://doi.org/10.21894/jopr.2023.0042 |
Published Online: 30 August 2023
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SELECTIVE CYTOTOXICITY EFFECTS OF R-GLYCIDOL AND S-GLYCIDOL ON VERO AND HCT 116 CELLS IN EVALUATING THE INCIDENCE OF GLYCIDYL ESTERS IN EDIBLE OILS AND FATS
OIL PALM ECONOMIC PERFORMANCE IN MALAYSIA AND R&D PROGRESS IN 2022
GHULAM KADIR AHMAD PARVEEZ1 *; OMAR ABD RASID1 ; MOHD NAJIB AHMAD1 ; HUMAIRA MAT TAIB1 ; MOHD AZWAN MOHD BAKRI1 ; SITTI RAHMA ABDUL HAFID1 ; TUAN NOOR MAZNEE TUAN ISMAIL1 ; SOH KHEANG LOH1 ; MEILINA ONG ABDULLAH1 ; KALSOM ZAKARIA1 and ZAINAB IDRIS1 DOI: https://doi.org/10.21894/jopr.2023.0028 |
Published Online: 28 June 2023
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NUTRITIONAL COMPOSITION OF ANTHESISING MALE INFLORESCENCE OF OIL PALM Elaeis guineensis ESSENTIAL FOR DEVELOPMENT OF Elaeidobius kamerunicus Faust: FIRST REPORT
APPLICATION OF Euglena sp. ISOLATED FROM YOGYAKARTA, INDONESIA ON NUTRIENT REMOVAL FROM PALM OIL MILL EFFLUENT (POME)
AFIFAH NUR AINI PUTRI1; BARTOLOMIUS RENALDY1; USWATUN MUJAHIDAH1; YU INABA2; DEDY KURNIANTO1,3; ALUN SAMODRA1; BRILIAN RYAN SADEWO4 and EKO AGUS SUYONO1* DOI: https://doi.org/10.21894/jopr.2023.0025 |
Published Online: 14 June 2023
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POME TREATMENT USING AB-101 MICROBIAL CONSORTIUM: PERFORMANCE AND PROPOSED MECHANISM
UMMI KALSUM HASANAH MOHD NADZIM1; NUR HANIS HAYATI HAIROM1,2*; MUHAMMAD ADIB ABIDI1; ADEL ALI SAEED ABDUH ALGHEETI3; DILAELEYANA ABU BAKAR SIDIK4; RAIS HANIZAM MADON1; SOFIAH HAMZAH5,6; ALYZA AZZURA A. RAHMAN AZMI5,6 and ABDUL WAHAB MOHAMMAD7 DOI: https://doi.org/10.21894/jopr.2023.0029 |
Published Online: 18 July 2023
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N-ALKANE PROFILES OF LARD AND VEGETABLE OILS, AND THEIR CHEMOMETRICS DIFFERENTIATION
NUR AIN SYAQIRAH SAPIAN1,2; MUHAMAD AIDILFITRI MOHAMAD ROSLAN1,2,3; AMALIA MOHD HASHIM1,4; YANTY NOORZIANNA ABDUL MANAF5; MOHD NASIR MOHD DESA1; MURNI HALIM2; MUHAMAD SHIRWAN ABDULLAH SANI6; MOHD TERMIZI YUSOF4; MOHD SABRI PAK DEK7 and HELMI WASOH1,2* DOI: https://doi.org/10.21894/jopr.2023.0038 |
Published Online: 22 August 2023
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THE EFFECT OF NCO/OH EQUIVALENT WEIGHT RATIOS OF POLYURETHANE (PU) BINDER AND PU BINDER CONTENT ON PROPERTIES OF MEDIUM DENSITY FIBERBOARD (MDF)
MOHD NORHISHAM SATTAR1*; TUAN NOOR MAZNEE TUAN ISMAIL1; KOSHEELA DEVI POO PALAM1; NORHAYATI MOHD NOOR1; NURUL AIN HANZAH1; SRIHANUM ADNAN1; YEONG SHOOT KIAN1; ZAFARIZAL ALDRIN AZIZUL HASAN1 and MANSUR AHMAD2 DOI: https://doi.org/10.21894/jopr.2023.0031 |
Published Online: 31 July 2023
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INITIAL CHARACTERISATION OF Metarhizium anisopliae CPMa1502 FOR THE DEVELOPMENT OF A BIOPESTICIDE AGAINST THE OIL PALM FRUIT SCRAPER Demotispa neivai (Coleoptera: Chrysomelidae)
GINNA QUIROGA-CUBIDES1*; FELIPE BORRERO-ECHEVERRY2; ANA MARÍA JIMÉNEZ1; LUIS GUILLERMO MONTES-BAZURTO3,4; ALEX BUSTILLO PARDEY3; MARTHA I. GÓMEZ1 and PAOLA E. CUARTAS-OTÁLORA1 DOI: https://doi.org/10.21894/jopr.2022.0076 |
Published Online: 9 December 2022
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PHENOTYPIC VARIABILITY OF Elaeis oleifera GERMPLASM REVEALED BY PRINCIPAL COMPONENT AND CLUSTER ANALYSES
ZULKIFLI YAAKUB1*; MARHALIL MARJUNI1; SUZANA MUSTAFFA1; WAN NOR SALMIAH TUN MOHD SALIM1; FATIN MOHD NASIR1; NORZIHA ABDULLAH1; MOHD DIN AMIRUDDIN1; RAJANAIDU NOOKIAH2; AHMAD KUSHAIRI DIN3 and MEILINA ONG-ABDULLAH1 DOI: https://doi.org/10.21894/jopr.2022.0054 |
Published Online: 6 September 2022
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ASSESSMENT OF SUBTERRANEAN TERMITE, Coptotermes curvignathus (ISOPTERA: RHINOTERMITIDAE) INFESTATION SEVERITY INDEX (TISI) AND WATER TABLE ON A PEAT OIL PALM PLANTATION IN SARAWAK
MOHAMAD ROSMAN SULAIMAN1 *; SAHARUL ABILLAH MOHAMAD1 ; MOHAMAD IZZUDDIN ANUAR2 ; SITI NURULHIDAYAH AHMAD1 and MOHAMED MAZMIRA MOHD MASRI1 DOI: https://doi.org/10.21894/jopr.2023.0044 |
Published Online: 8 September 2023
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AN EXPERIMENTAL STUDY ON THE EFFICIENCY OF A PALM MESOCARP SEPARATION MACHINE
NONGYAO MUEANGDEE1 *; KANTAPIT KRIWUTTISOM1 ; CHANITRA WASTHONG1 ; KRAISORN PUNYONG1 ; JINDA KONGCHAROEN1 ; SEPPO KARRILA1 and SARINTIP ANURAK1* DOI: https://doi.org/10.21894/jopr.2023.0008 |
Published Online: 6 March 2023
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ARTHROPOD FAUNA OF OIL PALM INFLORESCENCE (Elaeis guineensis), WITH NOTES ON THEIR ECOLOGICAL ROLES IN A PLANTATION IN TERENGGANU, MALAYSIA
MOHAMED NOR ZALIPAH1*; TAN HUI TING1; NURUL IZZAH AZUAN1; MOHD SHUHAIMI MUHAMMAD HAFFIDZIE1; FAIQ ZULFAQAR ZAIRY1; MUHAMAD AZRUL SHAIFUL LIZAM1; ASRAF MOHAMAD IDRUS1,2; SHAHRUL ANUAR MOHD SAH3; NUR FARIZA M. SHAIPULAH1 and NORASMAH BASARI1 DOI: https://doi.org/10.21894/jopr.2023.0013 |
Published Online: 15 March 2023
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