There are two types of fruit colors in the African oil palm (Elaeis guineensis) - the common nigrescens and the much rarer virescens. The low frequency also implies that most mutations are in the heterozygous state.
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CHARACTERISTICS OF OIL PALM NUTS COLLECTED FROM ANGOLA AND OTHER WEST AFRICAN COUNTRIES (all on a fresh basis)*. Utilization of Nigerian PS1 and PS2 selections in oil palm breeding programs at UP Bhd.
GENETIC TRANSFORMATION OF OIL PALM-BASED ON SELECTION WITH
HYGROMYCIN
RESEARCH ARTICLES
Polymerase chain reaction (PCR) analysis of genomic DNA from putative green 6 fluorescent protein (GFP) transformed oil palm callus to detect the presence of the gfp gene. Genetic transformation of immature zygotic embryos of the American oil palm (Elaeis oleifera) with an antisense gene for palmitoyl-acyl protein carrier thioesterase (PATE).
A COMPARATIVE STUDY OF BACTERIAL COMMUNITIES DETERMINED BY CULTURE-
DEPENDENT AND-INDEPENDENT
APPROACHES IN OIL PALM PLANTED ON TROPICAL PEATLAND
In addition, low pH would affect root development and availability of nutrients such as macronutrients (N and K) and micronutrients (Cu, Zn and B) in oil palm plantation (Parish et al., 2012). Additionally, Firmicutes and Actinobacteria enriched in oil palm plantation soils were associated with disease suppression (Wang et al., 2016).
EVALUATION OF MITOCHONDRIAL DNA ISOLATION METHODS FOR OIL PALM
Elaeis guineensis) LEAF
DOI: 10.1007/BF02824080
BIRD SPECIES RICHNESS, ABUNDANCE AND THEIR FEEDING GUILD ACROSS OIL PALMS
DEVELOPMENT THROUGH MIST-NETTING METHOD IN BETONG, SARAWAK
The surrounding area consisted of peat swamp forest and an oil palm plantation belonging to another company. Cumulative species and additional species of drained peat swamp birds (DPSF) recorded at different stages of oil palm development. Nonmetric multidimensional scaling (NMDS) ordinations of bird community structure through conversion of drained peat swamp forest (DPSF), cleared land (CL) to oil palm plantation.
Uneven species abundance in oil palm plantation was contributed by the presence of omnivorous bird P. The conservation value of oil palm plantation estates, smallholdings and cultivated peat bog for birds.
MAPPING THE NITROGEN STATUS ON IMMATURE OIL PALM AREA IN MALAYSIAN
OIL PALM PLANTATION WITH AUTOPILOT TRACTOR-MOUNTED ACTIVE LIGHT SENSOR
Point Data Preview. The raster map with square raster cells, then clicking the
Clicking “Report”. The layout can be edit before saving as PDF format
MAPPING THE NITROGEN STATUS OF THE IMMURE OIL PALM ZONE IN MALAYSIAN OIL PALM PLANTATIONS WITH AN AUTOPILOT TRACTOR MOUNTED ACTIVE LIGHT SENSOR. ESTIMATION OF NITROGEN USE AND BIOMASS INDEX FOR OIL PALM IN MALAYSIA Planting Year Nitrogen. The lowest and highest altitudes in the study area were 20.40 m and 36.20 m above sea level, respectively, and the average altitude was 29.95 m. MAPPING THE NITROGEN STATUS OF THE IMMURE OIL PALM ZONE IN MALAYSIAN OIL PALM PLANTATIONS WITH AN AUTOPILOT TRACTOR MOUNTED ACTIVE LIGHT SENSOR.
In this study, N status mapping of immature oil palm in a Malaysian plantation was successfully carried out using an N-ALS mounted on an autopilot tractor. In addition, the tractor with automated steering with autopilot can be an alternative prime mover for sensor management in the field of oil palm plantations.
EFFECT OF OPERATING TEMPERATURE ON PHYSICOCHEMICAL PROPERTIES OF EMPTY
The near analysis of the samples was used to determine the solid carbon, moisture, VM and ash content through a thermogravimetric analyzer (Perkin Elmer TGA-Pyris 6, USA) in accordance with the American Society for Testing and Materials (ASTM) standard method ) D1103-60, USA (Mayoral et al., 2001). According to Claoston et al. 2014), degradation in the biomass accelerates a decrease in the polar functional groups as the pyrolysis temperature increases. According to Tsai et al. 2012), the increase in ash content in the biochar is due to the increasing concentration of minerals and the destruction of lignocellulose.
This phenomenon is indicative of the disappearance of some functional groups such as hydroxyl (OH) and carbonyl (COOH) through evaporation (Bridgeman et al., 2008; Uemura et al., 2011b). However, the yield of EFBC-derived biofuel simply decreased further by 5% at 750 °C, which indicated extensive decomposition of most volatile fractions (Lua et al., 2004).
THE EFFECT OF SATURATED AND
UNSATURATED FATTY ACID COMPOSITION IN BIO-BASED LUBRICANT TO THE
TRIBOLOGICAL PERFORMANCES USING FOUR-BALL TRIBOTESTER
The fatty acid adsorption on the metal surface is also affected by the presence of moisture. High unsaturated fatty acid molecule content led to a high oxidation reaction which led to a higher friction coefficient. SPL that had higher unsaturated fatty acid content was highly exposed to the oxidation reaction.
A less densely packed density would lead to less affinity of the fatty acid chain molecules with the metal surfaces. SPL, which has a higher content of unsaturated fatty acid, experienced a high impact from the oxidation process.
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At a higher speed of 2400 rpm, RBDPO and PMO showed an average wear scar condition, of which a mild dark area was found on almost all wear surfaces. It was found that at a load of 786 N, RBDPO and SPL showed a round wear scar shape, while PMO showed a larger WSD. The dark spots indicated that the area was heavily affected by the oxidation reaction and polymerized (Sapawe et al., 2016).
The larger dark area was spotted, as highlighted in Figure 12e, indicating that the thin monolayer soap film had broken down and was unable to protect the contact surface under higher load. Dark light scratches were classified as abrasive wear, while some molten metal at the edge of the wear scar was considered as adhesive wear (Fazal et al., 2013).
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THE EFFECT OF SATURATED AND UNSATURATED FATTY ACID COMPOSITION IN BIO-BASED LUBRICANT ON TRIBOLOGICAL PERFORMANCE USING FOUR-BALL TRIBOTESTER. It was also observed that the fatty acid content has no significant influence on the EP condition. SPL, which has a high content of saturated fatty acid, succeeded in reducing the coefficient of friction at different temperatures and rotational speeds.
However, fatty acid content shows no significant effect on wear appearance at EP 981 N and 1179 N load.Friction characteristic of mineral oil containing palm fatty acid distillate using a four-ball tribo tester.
OPTIMISATION OF ALKALI EXTRACTION OF PALM KERNEL CAKE PROTEIN
The isoelectric precipitation method consists of extracting proteins from the cake with an alkali solution, followed by precipitation at the isoelectric point. Protein extraction by alkaline extraction is affected by a number of factors such as meal to solvent ratio, protein solubility, temperature and time. NaOH is the most effective solvent for protein extraction from PKC with the highest N extraction (83%).
Wolf (1970) and Donna (1997) found that NaOH extracted the highest yield of protein from soybean and canola meal. According to Cui et al. 2017), the presence of hydrophobic groups and disulfide bonds between protein molecules hinders the solubility of protein in water.
THE EFFECT OF MICROWAVE TREATMENT AND DELAYED HARVESTING ON OIL PALM
FRUITLETS (Elaeis guineensis) OIL QUALITY
One of the objectives of this study was therefore to study the effect of microwave heating or sterilization on the oil palm fruits and the quality of the oil obtained from them. However, the quality of the oil obtained in this way has not been thoroughly studied. Regardless of the time of oil extraction, γ-tocotrienol was the predominant tocol (30%-39%) in the solvent extracted oil compared to other vitamin E homologues (Tables 6 and 7).
Exposure of palm fruit to microwaves can cause degradation of minor components in palm oil to a certain extent. However, the quality of the oil obtained from such fruits deteriorated significantly with the passage of days due to the late harvesting approach.
CHARACTERISTICS OF RETAIL REFRIGERATED AND NON-REFRIGERATED MARGARINES/ FAT
SPREADS SOLD IN MALAYSIA
The SFC value of these non-refrigerated margarines/fat spreads at 30°C is approx. 10% (Miskandar and Nor Aini, 2010). Refrigerated margarines/spreads are well documented by researchers worldwide such as Garsetti, et al. The first approach was the compilation and evaluation of label information for retail refrigerated and non-refrigerated margarines/spreads.
Large amounts of SAFA ranging from were found in non-refrigerated margarines/fat spreads (Table 5). The hardness and compression values (reflecting the consistency) of refrigerated margarines/fat spreads at 5°C ranged from 61.41.
RED PALM OIL IN LAYING DUCKS DIETS
EFFECTS ON PRODUCTIVE PERFORMANCE, EGG QUALITY, CONCENTRATIONS OF YOLK
CAROTENOIDS
However, there was a significant difference in yolk color of the RPO groups compared to the control group (P<0.05). Lutein, β-carotene and total carotenoids in egg yolk changed significantly (P<0.05) after RPO feeding (Table 6). The content of PUFA in the egg yolk of each group was decreased with the increase of RPO content in the feed (P<0.001).
EFFECTS OF RPO SUPPLEMENTATION TO LEGENDS ON CAROTENOID LEVELS IN EGG YOLK (mean ± SD) (n=5). After eight weeks of RPO intervention, there was a significant difference in egg yolk color of RPO groups compared to the control group (P<0.05).
DOES PALM MID FRACTION AFFECT ADULT SATIETY?
Release of gut hormones has been shown to play a role in the occurrence of obesity through reduction of food intake and satisfaction of appetite (Little et al., 2007). The induction of physiological satiety signals may well depend on the composition of fatty acids in the particular fats used (Lawton et al., 2000). This marked difference in GIP levels may be due to the relationship between fatty acid composition and TAG metabolism in the postprandial state (Thomsen et al., 1999).
However, specific types of fat have been hypothesized to have a differential effect on plasma PYY levels (Serrano et al., 1997). Furthermore, the magnitude of the PYY response after ingestion of different standardized meals depends on their size (Adrian et al., 1985).
STABILITY AND PERFORMANCE OF PALM- BASED TRANSPARENT SOAP WITH OIL PALM
LEAVES EXTRACT
Moisture analyzer (XM50 from Precisa Gravimetrics AG, Switzerland) was used to measure the moisture content of transparent soap. The results obtained from analyzes of pH and moisture content of transparent soaps are shown in Table 2. The pH of all transparent soaps analyzed in this study fall within the range between 9.88 and 10.02. It was observed that the addition of 0.1% OPAL extracts, BHT and commercial green tea extract in the clear soap significantly lowered the pH of soap samples compared to control.
Strength of transparent palm-based soap with 0.1% OPAL extracts, 0.1% commercial green tea, BHT and control. Strength of transparent palm-based soap with 0.1% OPAL extracts, 0.1% commercial green tea, BHT and control.
Antioxidant Activity
In addition, the yellow color of transparent palm based soap, S1 – S5 remains stable during storage from day 30 to day 90. OPAL extract can therefore be used as a natural yellow dye and the presence of antioxidants in OPAL extract can help with .
14 Colour Stability
CONCLUSION
Development and validation of a headspace needle method for rapid quantitative estimation of butylated hydroxytoluene from cosmetics with handheld GC-MS. Antihypertensive and cardiovascular effects of catechin-rich oil palm (Elaeis guineensis) leaf extract in nitric oxide-deficient rats. Differences in skin surface pH and bacterial microflora due to long-term application of synthetic detergent preparations with pH 5.5 and pH 7.0.
Chemical and physical properties of soap made from distilled fatty acids of palm oil and palm kernel oil. The long-term use of soap does not affect the pH maintenance mechanism of human skin.
IS THERE A SUSTAINABLE FUTURE FOR WILDLIFE IN OIL PALM PLANTATIONS IN
MALAYSIA?
SHORT COMMUNICATION
Proximity to forest patches has also been found to influence species richness within the oil palm landscape (Azhar et al., 2011; Macaques can contribute to greener practices in oil palm plantations when used as biological pest control. Mammal diversity in oil palm plantations and forest fragments in a highly modified landscape in southern Mexico.
Conservation of tigers and other wildlife in oil palm plantations: Jambi Province, Sumatra, Indonesia (October 2007). The role of forest fragments in the conservation of small mammals in an oil palm plantation in northern Sarawak, Borneo.
JOURNAL OF OIL PALM RESEARCH
GUIDE FOR AUTHORS
Short Communication
Review Article
Omics-platformtechnologieë vir die onderköping en pemahaman dari stelselbiologie van olie Palm Umi Salamah Ramli; Abrizah Othman; Benyamin Lau Yi Chung; Noor Idayu Mhd Tahir; Syahanim Shahwan; Zain Nurazah; Nurul Liyana Rozali; Hasliza Hassan; Nur 'Ain Mohd Ishak; Shahirah Balqis Dzulkafli; Rajinder Singh; Omar Abd Rasid; Ravigadevi Sambanthamurthi; Mohamad Arif Abd Manaf en Ghulam Kadir Ahmad Parveez. Histoon Wysingspunte Verbeter Identifikasie van Olie Palm Transkripsi Mulai Situs Sarpan, N; Tatarinova, TV; Laag, ET L; Ong-Abdullah, M; Sapian, I S en Ooi, S-E. Inhibisie van Cholinesterases deur Wateroplosbare Ekstrak Buah Sawit Soon-Sen Leow; Syed Fairus en Ravigadevi Sambanthamurthi.
Journal of Oil Palm Research Vol. 34 (1) March 2022 *
