Article
Horticulture
Wilmer Tezara, Tania S. Torres Dominguez, Daniel W. Loyaga, Rene Nazareno Ortiz, Victor H. Reynel Chila, Milton J. Bolanos Ortega
Summary: The study on oil palm seedlings of G and OG genotypes revealed that water deficit led to reductions in leaf relative water content, photosynthetic rate, stomatal conductance, transpiration rate, and water use efficiency. The response of gas exchange and biochemical related variables to water deficit was dual-phased, with stomatal closure being the initial response followed by a reduction in biochemical photosynthetic capacity.
SCIENTIA HORTICULTURAE
(2021)
Article
Chemistry, Applied
Ardha Apriyanto, Julia Compart, Vincent Zimmermann, Saleh Alseekh, Alisdair R. Fernie, Joerg Fettke
Summary: Oil palm is the most productive oil-producing crop and accumulates the highest amount of oil in its fruit. Comparative analysis of high-, medium-, and low-yielding oil palms revealed unique characteristics during fruit development. Metabolomics analysis showed that starch and sucrose can be used as novel biomarkers for oil yield, as there were significant differences in starch parameters and sucrose levels among different yield categories.
Review
Plant Sciences
Shey-Li Lim, Sreeramanan Subramaniam, Md Abdul Baset Mia, Abdul Rahman Siti Rahmah, Amir Hamzah Ahmad Ghazali
Summary: Continuous discovery of novel in vitro plant culture practices is crucial for better plant growth in a shorter period. Using Plant Growth Promoting Rhizobacteria (PGPR) in the biotization process allows for sustained populations and improved tolerance to stresses, reducing mortality rates. Understanding the mechanisms and evaluating biochemical activities are essential for studying in vitro plant-microbe interactions. This review provides an overview of the in vitro oil palm plant-microbe symbiosis system.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Nur Fizura Chin-Hashim, Alfadhl Yahya Khaled, Diyana Jamaludin, Samsuzana Abd Aziz
Summary: This paper introduces a non-destructive technique using electrical impedance spectroscopy to predict the moisture and oil content in oil palm fruitlets. By analyzing the variation of electrical impedance values, the moisture and oil content can be predicted effectively. This method can be used for fruit grading and oil yield estimation in the palm oil industry.
Article
Agricultural Engineering
Jumat Salimon, Nadia Salih
Summary: Green renewable biolubricants base stock based on polyol triester of epoxidized Malaysian Elaeis guineensis palm kernel oil and trimethylolpropane was produced and optimized using response surface methodology. The optimal condition for the epoxidation process was achieved, resulting in a high epoxide yield of 92.5% and excellent lubrication properties of EPKO-TMPE. Tribological assessments showed that EPKO-TMPE exhibited low coefficients of friction in the hydrodynamic region and was comparable to marketable lubricants.
BIOMASS & BIOENERGY
(2023)
Article
Agronomy
Olivier Dassou, Leifi Nodichao, Herve Aholoukpe, Yves Cakpo, Christophe Jourdan
Summary: This study compared three methods for estimating root biomass of young and adult oil palm trees in commercial plantations. The simplified Voronoi trench method required twice as much labor time as the auger method but was the most efficient way to estimate oil palm total root biomass.
Article
Agricultural Engineering
Wagner Romulo Lima Lopes Filho, Flavio Henrique Santos Rodrigues, Izabely Vitoria Lucas Ferreira, Lorena Oliveira Correa, Roberto Lisboa Cunha, Hugo Alves Pinheiro
Summary: The study reveals that repetitive water deficit events induce acclimation of the photosynthetic machinery in oil palm through adjustments in various parameters related to photosynthesis and by attenuating oxidative damages, helping the plants adapt to this environmental stress.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Yifei Wang, Jixin Zou, Jin Zhao, Yusheng Zheng, Dongdong Li
Summary: EgMADS16, a MADS-box transcription factor in oil palm, is highly expressed during late fruit development and is predicted to be targeted by EgmiR5179. Experimental results suggest that EgMADS16 expression is downregulated by EgmiR5179, impacting lipid metabolism in oil palm.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Engineering, Environmental
Fabiana Frota de Albuquerque Landi, Claudia Fabiani, Beatrice Castellani, Franco Cotana, Anna Laura Pisello
Summary: Global waste is expected to significantly increase by 2050, making it crucial to develop effective waste management strategies. Food and green waste account for a significant portion of total waste production, highlighting the importance of processing and reusing materials such as waste cooking oil. This study compares various valorization pathways for waste cooking oil, including biodiesel and direct burning fuel, to their common alternatives, and assesses their environmental impact and energy consumption. The results show that waste cooking oil has lower environmental impact in most cases, particularly as direct burning fuel. However, obstacles such as limited stock and collection difficulties need to be addressed for its widespread usage.
Article
Engineering, Environmental
Kelechi E. Anyaoha, Lulu Zhang
Summary: The study reveals significant differences in greenhouse gas emissions among different types of oil palm processors in Nigeria, highlighting the importance of using bioenergy as a key strategy for mitigating climate change.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Biochemistry & Molecular Biology
Philipp Gutbrod, Sophie Reichert, Katharina Gutbrod, Amazigh Hamai, Claire Brehelin, Georges Ngando-Ebongue, Peter Doermann
Summary: The African Oil Palm is a crucial oil crop for food, feed, and biotechnological applications. Research has identified significant amounts of fatty acid phytyl esters and fatty acid geranylgeranyl esters in the mesocarp and kernel tissues of the fruit, providing additional metabolic sources for fatty acids and alcohols. Enzymatic reactions were shown to be involved in the synthesis of these compounds, with potential implications for carotenoids and tocotrienols production.
Article
Biochemical Research Methods
Sau-Yee Kok, Parameswari Namasivayam, Gwendoline Cheng-Lian Ee, Meilina Ong-Abdullah
Summary: A comparative proteomic approach was used to study protein changes in early oil palm fruit development, identifying potential candidates in energy metabolism, stress responses, and cell structure. Transcript and protein profiles were parallel across developmental stages, with some divergent expression observed in specific protein spots. This study provides valuable information on physiological processes during early oil palm fruit development and can contribute to improving fruit quality traits.
JOURNAL OF PROTEOMICS
(2021)
Article
Agricultural Engineering
Dapeng Zhang, Peng Shi, Yin M. Htwe, Zhiying Li, Leonard O. Ihase, Annaliese S. Mason, Xiwei Sun, Yong Xiao, Yong Wang
Summary: The study revealed that certain metabolites, particularly caffeate, are specifically accumulated in somatic embryos of oil palm. Caffeate was found to have significant correlations with phytohormone signaling genes and somatic embryogenesis transcription factors, suggesting its importance in the mechanism of somatic embryogenesis in oil palm. Furthermore, staining and microscopic observation showed phenolic acids highly accumulate in the center of newly formed callus clusters, indicating their role in somatic embryo development.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Agricultural Engineering
Genmao Guo, Yuan He, Fangming Jin, Ondrej Masek, Qing Huang
Summary: Hydrothermal bio-oil (HBO) production from biomass conversion can achieve sustainable and low-carbon development. Machine learning was used to predict bio-oil yield and life cycle assessment (LCA) was conducted to assess its environmental sustainability effect. The results demonstrated that gradient boosting decision tree regression (GBDT) had the most optimal prediction performance for HBO yield.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Karoline de Sousa Castro, Luis Fernando de Medeiros Costa, Valter Jose Fernandes, Regineide de Oliveira Lima, Aruzza Mabel de Morais Araujo, Mikele Candida Sousa de Sant'Anna, Nataly Albuquerque dos Santos, Amanda Duarte Gondim
Summary: The study demonstrates the high efficiency and selectivity of Ni/Al-MCM-41 catalyst in catalytic pyrolysis of palm oil, showing the potential for renewable hydrocarbon production.
Article
Engineering, Environmental
Yoon Lin Chiew, Johanna Spangberg, Andras Baky, Per-Anders Hansson, Hakan Jonsson
RESOURCES CONSERVATION AND RECYCLING
(2015)
Article
Agricultural Engineering
Yoon Lin Chiew, Tomoko Iwata, Sohei Shimada
BIOMASS & BIOENERGY
(2011)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)