Heavea brasiliensis (Rubber seed): An alternative source of renewable energy

Adepoju, T.F.; Olatunji, Ololade; Ibeh, M.A.; Salam, Kamoru A.; Olatunbosun, B.E.; Asuquo, A.J.

doi:10.1016/j.sciaf.2020.e00339

Cited by 13 publications

(5 citation statements)

References 19 publications

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“…The physic nut oil with fossil fuel-like fatty acid composition is a potential material for biodiesel production; the castor oil dominant in ricinoleic acid is widely used for industrial, medicinal, and cosmetic purposes; and, the tung oil rich in α-eleostearic acid (α-ESA) is widely used in the production of inks, dyes, resins, and biodiesel [ 2 , 5 , 9 ]. Cassava and rubber tree, both of which originated in the Southern Amazon basin, also accumulate more than 25% of oil in their seeds, though they have not been well explored [ 11 ]. Instead, the starchy-enriched storage roots of cassava are not only staple food for millions of people but also ideal for bio-ethanol production, whereas natural rubber or cis -1,4-polyisoprene, which is specifically produced by the rubber tree laticifer, is an indispensable industrial raw material for various uses [ 6 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Genomic insights into lineage-specific evolution of the oleosin family in Euphorbiaceae

2022

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Background Lipid droplets (LDs) present in land plants serve as an essential energy and carbon reserve for seed germination and seedling development. Oleosins, the most abundant structural proteins of LDs, comprise a small family involved in LD formation, stabilization and degradation. Despite their importance, our knowledge on oleosins is still poor in Euphorbiaceae, a large plant family that contains several important oil-bearing species. Results To uncover lineage-specific evolution of oleosin genes in Euphorbiaceae, in this study, we performed a genome-wide identification and comprehensive comparison of the oleosin family in Euphorbiaceae species with available genome sequences, i.e. castor bean (Ricinus communis), physic nut (Jatropha curcas), tung tree (Vernicia fordii), Mercurialis annua, cassava (Manihot esculenta) and rubber tree (Hevea brasiliensis), and a number of five, five, five, five, eight and eight members were found, respectively. Synteny analysis revealed one-to-one collinear relationship of oleosin genes between the former four (i.e. castor bean, physic nut, tung tree and M. annua) as well as latter two species (i.e. cassava and rubber tree), whereas one-to-one and one-to-two collinear relationships were observed between physic nut and cassava, reflecting the occurrence of one recent whole-genome duplication (WGD) in the last common ancestor of cassava and rubber tree. The presence of five ortholog groups representing three previously defined clades (i.e. U, SL and SH) dates back at least to the Malpighiales ancestor, because they are also conserved in poplar (Populus trichocarpa), a tree having experienced one Salicaceae-specific recent WGD. As observed in poplar, WGD was shown to be the main driver for the family expansion in both cassava and rubber tree. Nevertheless, same retention patterns of WGD-derived duplicates observed in cassava and rubber tree are somewhat different from that of poplar, though certain homologous fragments are still present in rubber tree. Further transcriptional profiling revealed an apparent seed-predominant expression pattern of oleosin genes in physic nut, castor bean and rubber tree. Moreover, structure and expression divergence of paralogous pairs were also observed in both cassava and rubber tree. Conclusion Comparative genomics analysis of oleosin genes reported in this study improved our knowledge on lineage-specific family evolution in Euphorbiaceae, which also provides valuable information for further functional analysis and utilization of key members and their promoters.

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Section: Introductionmentioning

confidence: 99%

Genomic insights into lineage-specific evolution of the oleosin family in Euphorbiaceae

2022

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“…Thevetia peruviana oil (TPO) was extracted following the method described in the literature. 29 Epoxidation was carried out in a 250 mL batch reactor at varying temperatures and amounts of acetic acid and H 2 O 2 relative to the oil's double bond (DB) mole ratio of 1. The acidic ionic resin catalysts used in the procedure are listed in Table S1.…”

Section: Methodsmentioning

confidence: 99%

Nonedible Thevetia peruviana Oil for the Synthesis of Biobased Thermosets and Vitrimers with Tunable Mechanical Properties

Olosho,

Alam,

Sukumaran Nair

et al. 2024

ACS Appl. Polym. Mater.

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Current attempts to replace fossil-derived materials with vegetable oils for polymer production mainly rely on edible oils. This approach raises sustainability concerns due to potential food security risks. This report introduces the first in-depth examination of Thevetia peruviana oil (TPO) epoxidation, an easily accessible nonedible vegetable oil, utilizing diverse acidic ion-exchange resins as catalysts. It is followed by the development of vitrimers based on epoxidized oil (ETPO) with various dicarboxylic acid hardeners. Amberlite IRC120H emerged as the most effective catalyst for the epoxidation of the oil, allowing for repeated catalyst reusability for up to five cycles. An impressive relative oxirane conversion of 98.9% was achieved after optimization. DSC analysis revealed that among the diacids, 2,2′-dithiodibenzoic acid (DTBZ) has the lowest activation energy with ETPO. Additionally, the ETPO−DTBZ-based thermosets displayed exceptional solvent resistance and thermal stability, indicative of a high degree of cross-linked networks within the system. Mechanical analyses revealed that all aliphatic hardeners resulted in soft materials, while DTBZ resulted in thermosets with tensile stress and modulus of 15 and 843 MPa, respectively. Consequently, DTBZ−ETPO thermosets were successfully recycled, repaired, and reshaped with minimal changes in the mechanical properties. The shape memory of the thermosets was also established.

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“…Studies carried out in Africa report the use of CPH as a base catalyst for the transesterification of Hevea brasiliensis oil (HBO) to the methyl ester of Hevea brasiliensis (HBME) in Nigeria [58]. Other authors in Ghana report the production and characterization of CPH as briquettes and sawdust for bioenergy [59].…”

Section: Energy Uses For Cacao Residuesmentioning

confidence: 99%

Bio-Based Value Chains Potential in the Management of Cacao Pod Waste in Colombia, a Case Study

Meza-Sepúlveda

Castro²,

Zamora

et al. 2021

Agronomy

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Agriculture generates 11.4 billion tons of biomass worldwide, including residues from crop production and industrial processing. Improper disposal of agricultural residues results in environmental pollution and the waste of valuable biomass resources. Management of agricultural waste is particularly suboptimal in developing countries where low added-value traditional practices to manage the residues are commonplace. A bioeconomy approach to better manage agricultural waste is to use renewable biological resources from land and sea to produce new materials and energy, allowing the development of bio-based value chains (BBVC). This study explored the potential of BBVC in the management of cacao pod husk (CPH), the primary residual biomass generated from the production of cacao in Colombia. Thus, a literature review on cacao pod husk (CPH) management strategies and a survey for farmers from Caldas State in Colombia between August and November of 2020 were performed to identify the potentials and limitations of BBVC in the management of CPH. Assessment of CPH management strategies suggested variable uses for CPH categorized in energy, food, and miscellaneous. Analysis of surveys indicated farmers are keen to implement strategies to better manage their agricultural waste, but that information is not available to them. Finally, an approach to develop a BBVC from cacao was proposed, which we plan to implement as a future research direction. We expect to impact the economic growth positively in the region with bio-based products in the market.

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Heavea brasiliensis (Rubber seed): An alternative source of renewable energy

Cited by 13 publications

References 19 publications

Genomic insights into lineage-specific evolution of the oleosin family in Euphorbiaceae

Genomic insights into lineage-specific evolution of the oleosin family in Euphorbiaceae

Nonedible Thevetia peruviana Oil for the Synthesis of Biobased Thermosets and Vitrimers with Tunable Mechanical Properties

Bio-Based Value Chains Potential in the Management of Cacao Pod Waste in Colombia, a Case Study

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