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palm oil

Noor Hafizah Arbain, Norazlinaliza Salim, Hamid Reza Fard Masoumi, Tin Wui Wong, Mahiran Basri, Mohd Basyaruddin Abdul Rahman
Bioavailability of quercetin, a flavonoid potentially known to combat cancer, is challenging due to hydrophobic nature. Oil-in-water (O/W) nanoemulsion system could be used as nanocarrier for quercertin to be delivered to lung via pulmonary delivery. The novelty of this nanoformulation was introduced by using palm oil ester/ricinoleic acid as oil phase which formed spherical shape nanoemulsion as measured by transmission electron microscopy and Zetasizer analyses. High energy emulsification method and D-optimal mixture design were used to optimize the composition towards the volume median diameter...
March 14, 2018: Drug Delivery and Translational Research
Andrea de Oliveira Falcão, Paula Speranza, Tatiane Ueta, Isabela Mateus Martins, Gabriela Alves Macedo, Juliana Alves Macedo
Enzymatic interesterification is used to manipulate oil and fat in order to obtain improved restructured lipids with desired technological properties. However, with raw materials containing significant amounts of bioactive compounds, the influence of this enzymatic process on the bioactivity of the final product is still not clear. Thus, the aim of this study is to evaluate the antioxidant potential and modulatory effects of two raw materials from the Amazonian area, buriti oil and murumuru fat, before and after lipase interesterification, on human hepatoma cells (HepG2)...
December 2017: Food Technology and Biotechnology
Karthikumar Sankar, Anant Achary
The lipophilic antioxidants, glyceryl ferulate and feruloyl glyceryl linoleate, were synthesized using lipase from Bacillus subtilis AKL 13. The extracellular lipase was produced by cultivation of the strain in modified minimal medium and the enzyme was recovered by fractionation at 80% ammonium salt saturation. The concentrated enzyme with the specific activity of (4647±66) U/mg was immobilized on Celite® 545 and crosslinked using glutaraldehyde. The prepared enzyme catalyst was used for esterification of ferulic and linoleic acids with glycerol separately in hexane butane solvent system at 50 °C and 3...
December 2017: Food Technology and Biotechnology
Biow Ing Sim, Halimah Muhamad, Oi Ming Lai, Faridah Abas, Chee Beng Yeoh, Imededdine Arbi Nehdi, Yih Phing Khor, Chin Ping Tan
This paper examines the interactions of degumming and bleaching processes as well as their influences on the formation of 3-monochloropropane-1,2-diol esters (3-MCPDE) and glycidyl esters in refined, bleached and deodorized palm oil by using D-optimal design. Water degumming effectively reduced the 3-MCPDE content up to 50%. Acid activated bleaching earth had a greater effect on 3-MCPDE reduction compared to natural bleaching earth and acid activated bleaching earth with neutral pH, indicating that performance and adsorption capacities of bleaching earth are the predominant factors in the removal of esters, rather than its acidity profile...
March 9, 2018: Journal of Oleo Science
V L N Brandao, X Dai, E M Paula, L G Silva, M I Marcondes, T Shenkoru, S R Poulson, A P Faciola
Camelina is a drought- and salt-tolerant oil seed, which in total ether extract (EE) contains up to 74% polyunsaturated fatty acids. The objective of this study was to assess the effects of replacing calcium salts of palm oil (Megalac, Church & Dwight Co. Inc., Princeton, NJ) with camelina seed (CS) on ruminal fermentation, digestion, and flows of fatty acids (FA) and AA in a dual-flow continuous culture system when supplemented at 5 or 8% dietary EE. Diets were randomly assigned to 8 fermentors in a 2 × 2 factorial arrangement of treatments in a replicated 4 × 4 Latin square design, with four 10-d experimental periods consisting of 7 d for diet adaptation and 3 d for sample collection...
March 7, 2018: Journal of Dairy Science
Zainol Maznah, Muhamad Halimah, B Sahid Ismail
The residual levels and persistence of thiram in the soil, water and oil palm seedling leaves were investigated under field conditions. The experimental plots were carried out on a clay loam soil and applied with three treatments namely; manufacturer's recommended dosage (25.6 g a.i. plot-1 ), manufacturer's double recommended dosage (51.2 g a.i. plot-1 ), and control (water) were applied. Thiram residues were detected in the soil from day 0 to day 3 in the range of 0.22-27.04 mg kg-1 . Low concentrations of thiram were observed in the water and leave samples in the range of 0...
March 7, 2018: Bulletin of Environmental Contamination and Toxicology
Wolfgang Schwack, Elodie Pellissier, Gertrud Morlock
Food authenticity and food safety are of high importance to organizations as well as to the food industry to ensure an accurate labeling of food products. Respective analytical methods should provide a fast screening and a reliable cost-efficient quantitation. HPTLC was pointed out as key analytical technique in this field. A new HPTLC method applying caffeine-impregnated silica gel plates was developed for eight most frequently found fat-soluble azo dyes unauthorizedly added to spices, spice mixtures, pastes, sauces, and palm oils...
March 7, 2018: Analytical and Bioanalytical Chemistry
Su Shiung Lam, Rock Keey Liew, Chin Kui Cheng, Nazaitulshila Rasit, Chee Kuan Ooi, Nyuk Ling Ma, Jo-Han Ng, Wei Haur Lam, Cheng Tung Chong, Howard A Chase
Fruit peel, an abundant waste, represents a potential bio-resource to be converted into useful materials instead of being dumped in landfill sites. Palm oil mill effluent (POME) is a harmful waste that should also be treated before it can safely be released to the environment. In this study, pyrolysis of banana and orange peels was performed under different temperatures to produce biochar that was then examined as adsorbent in POME treatment. The pyrolysis generated 30.7-47.7 wt% yield of a dark biochar over a temperature ranging between 400 and 500 °C...
March 2, 2018: Journal of Environmental Management
Eleanor M Warren-Thomas, David P Edwards, Daniel P Bebber, Phourin Chhang, Alex N Diment, Tom D Evans, Frances H Lambrick, James F Maxwell, Menghor Nut, Hannah J O'Kelly, Ida Theilade, Paul M Dolman
Expansion of Hevea brasiliensis rubber plantations is a resurgent driver of deforestation, carbon emissions, and biodiversity loss in Southeast Asia. Southeast Asian rubber extent is massive, equivalent to 67% of oil palm, with rapid further expansion predicted. Results-based carbon finance could dis-incentivise forest conversion to rubber, but efficacy will be limited unless payments match, or at least approach, the costs of avoided deforestation. These include opportunity costs (timber and rubber profits), plus carbon finance scheme setup (transaction) and implementation costs...
March 2, 2018: Nature Communications
Tahoora Sheikhy Narany, Anuar Sefie, Ahmad Zaharin Aris
In many regions around the world, there are issues associated with groundwater resources due to human and natural factors. However, the relation between these factors is difficult to determine due to the large number of parameters and complex processes required. In order to understand the relation between land use allocations, the intrinsic factors of the aquifer, climate change data and groundwater chemistry in the multilayered aquifer system in Malaysia's Northern Kelantan Basin, twenty-two years hydrogeochemical data set was used in this research...
February 27, 2018: Science of the Total Environment
Valentyna Krashevska, Elena Malysheva, Bernhard Klarner, Yuri Mazei, Mark Maraun, Rahayu Widyastuti, Stefan Scheu
We investigated how the land-use change from rainforest into jungle rubber, intensive rubber and oil palm plantations affects decomposers and litter decomposition in Sumatra, Indonesia. Litterbags containing three litter types were placed into four land-use systems and harvested after 6 and 12 months. Litter mass loss and litter element concentrations were measured, and different microbial groups including bacteria, fungi and testate amoebae were studied. After 12 months 81, 65, 63 and 53% of litter exposed in rainforest, jungle rubber in oil palm and rubber plantations was decomposed...
March 1, 2018: Oecologia
Bonnie Tay Yen Ping, Haliza Abdul Aziz, Zainab Idris
High-Performance Liquid Chromatography (HPLC) methods via evaporative light scattering (ELS) and refractive index (RI) detectors are used by the local palm oil industry to monitor the TAG profiles of palm oil and its fractions. The quantitation method used is based on area normalization of the TAG components and expressed as percentage area. Although not frequently used, peak-area ratios based on TAG profiles are a possible qualitative method for characterizing the TAG of palm oil and its fractions. This paper aims to compare these two detectors in terms of peak-area ratio, percentage peak area composition, and TAG elution profiles...
2018: Journal of Oleo Science
Sophia Rasheeqa Ismail, Siti Khuzaimah Maarof, Syazwani Siedar Ali, Azizan Ali
BACKGROUND: The high amount of saturated fatty acids (SFA) coupled with the rising availability and consumption of palm oil have lead to the assumption that palm oil contributes to the increased prevalence of cardiovascular diseases worldwide. We aimed at systematically synthesising the association of palm oil consumption with cardiovascular disease risk and cardiovascular disease-specific mortality. METHODS: We systematically searched Central, Medline and Embase databases up to June 2017 without restriction on setting or language...
2018: PloS One
Karina Martins Barbosa, Lisandro Pavie Cardoso, Ana Paula Badan Ribeiro, Theo Guenter Kieckbusch, Monise Helen Masuchi Buscato
Several scientific investigations have focused on providing new strategies for supporting the development of low saturated and zero trans lipid materials, as healthier fat alternatives for food application. This work evaluated the consistency, crystallization behavior, microstructure and polymorphism of six blends composed of palm and canola oils at different concentrations (100:0, 80:20, 60:40, 40:60, 20:80 and 0:100, in w/w%) added with 5.0% of fully hydrogenated palm oil (FHPO) or with a mixture of 2.5% of FHPO and 2...
March 2018: Journal of Food Science and Technology
Artur Campos Dália Maia, Geanne Karla Novais Santos, Eduardo Gomes Gonçalves, Daniela Maria do Amaral Ferraz Navarro, Luis Alberto Nuñez
BACKGROUND: 2-Alkyl-3-methoxypyrazines (MPs) are naturally occuring aromatic compounds involved in insect chemical communication as both pheromones and allelochemicals. Although rarely characterized in floral scents, they have been identified as major constituents in headspace samples from palm inflorescences and evidence pointed towards their function as attractive cues for scent-oriented pollinators, as well as florivores. In the present study, we investigated the occurrence of MPs in economically exploitable palms belonging to Acrocomia and Attalea through headspace floral scent analysis and assessed their role in the selective attraction of flower-feeding cyclocephaline scarabs (Melolonthidae, Cyclocephalini) in field bioassays conducted in Brazil and Colombia...
February 25, 2018: Pest Management Science
Zeineb Nhouchi, Romdhane Karoui
The aim of the present study was to investigate the ability of MIR and texture analyzer to evaluate the quality of pound cake samples produced with palm oil and rapeseed oil throughout storage. The MIR spectra analyzed by using principal component analysis (PCA) showed a clear separation of pound cakes as a function of the storage time and the nature of the used oil in the recipe. By applying partial least square regression (PLSR), excellent prediction was obtained for hardness (R2  = 0.91; RPD = 2...
June 30, 2018: Food Chemistry
H Mirzaei-Alamouti, Z Mohammadi, M H Shahir, M Vazirigohar, M Mansouryar
The effects of dietary omega-3 and omega-6 fatty acids (FAs) in pre-mating diets on reproductive performances and metabolic status of ewes have not been well investigated. Therefore, this study investigated the effect of supplementing different source of FAs on different aspects of reproductive performance of fat-tailed Iranian Afshari ewes. Thirty-two cycling, multiparous Afshari ewes were divided into four groups and fed one of the isocaloric and isonitrogenous diets supplemented with Sunflower oil (SFO), Fish oil (FO), calcium salt of palm oil (CaPO) and/or an equal mixture of SFO + FO (SFOFO)...
February 15, 2018: Theriogenology
Thibault Leger, Isabelle Hininger-Favier, Frédéric Capel, Alain Geloen, Jean-Paul Rigaudière, Chrystèle Jouve, Elodie Pitois, Gaelle Pineau, Carole Vaysse, Jean-Michel Chardigny, Marie-Caroline Michalski, Corinne Malpuech-Brugère, Luc Demaison
Background: Obesity progressively leads to cardiac failure. Omega-3 polyunsaturated fatty acids (PUFA) have been shown to have cardio-protective effects in numerous pathological situations. It is not known whether rapeseed oil, which contains α-linolenic acid (ALA), has a similar protective effect. Omega-3 PUFAs are sensitive to attack by reactive oxygen species (ROS), and lipid peroxidation products could damage cardiac cells. We thus tested whether dietary refined rapeseed oil (RSO) associated with or without different antioxidants (vitamin E, coenzyme Q10 and canolol) is cardio-protective in a situation of abdominal obesity...
2018: Nutrition & Metabolism
Luisa Duque, Martin Körber, Roland Bodmeier
The objectives of this study were to prepare lipid-based implants by hot melt extrusion (HME) for the prolonged release of ovalbumin (OVA), and to relate protein release to crystallinity and polymorphic changes of the lipid matrix. Two lipids, glycerol tristearate and hydrogenated palm oil, with different composition and degree of crystallinity were studied. Solid OVA was dispersed within the lipid matrixes and it preserved its stability during extrusion. This was partially attributed to a protective effect of the lipidic matrix...
February 13, 2018: European Journal of Pharmaceutical Sciences
Ge Zhao, Jianrong Wang, Qingyun Tang, Dongming Lan, Yonghua Wang
MAS1 is a lipase isolated from Streptomyces sp. strain W007 with potential application in biotechnology. Structural analysis of MAS1 lipase showed that eight amino acids with bulkier side located in the substrate-binding pocket may be involved in affecting catalytic performance. Alanine substitutions of those residues were conducted to reduce steric clash of catalyzed pocket and probe their functional roles. The k cat /K m of mutants H108A, F153A, and V233A increased to 2.3-, 2.1-, and 1.4-fold, respectively...
February 15, 2018: Molecular Biotechnology
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