Jatropha curcas L.: A crucified plant waiting for resurgence

Edrisi, Sheikh Adil; Dubey, Rama Kant; Tripathi, Vishal; Bakshi, Mansi; Srivastava, Pankaj; Jamil, Sarah; Singh, Harkesh B.; Singh, Nandita; Abhilash, P.C.

doi:10.1016/j.rser.2014.08.082

Cited by 107 publications

(63 citation statements)

References 68 publications

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“…Yields of 12 t ha -1 for example have been claimed and global predictions showed yields of only 5 t ha -1 ). The problem is that expectations were not based on field performance and validated scientific knowledge Edrisi et al 2015). Although uncertainties remain, knowledge gaps are being filled as is evident by the fact that actual measured yields vary from \0.5-2 t ha -1 (Edrisi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The problem is that expectations were not based on field performance and validated scientific knowledge Edrisi et al 2015). Although uncertainties remain, knowledge gaps are being filled as is evident by the fact that actual measured yields vary from \0.5-2 t ha -1 (Edrisi et al 2015). However an understanding of jatropha growth and reproductive biology in combination with breeding for available commercial high yielding planting material, optimum management practices, and suitable growing environment are still lacking Edrisi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Tree or shrub: a functional branch analysis of Jatropha curcas L.

Tjeuw¹,

Mulia²,

Slingerland³

et al. 2015

Agroforest Syst

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Jatropha curcas is an oil-bearing semievergreen shrub or small tree with potential as a source of sustainable biofuel, yet information regarding vegetative and fruit biomass in relation to plant architecture is lacking. Research conducted in Indonesia used the tree based functional branch analysis (FBA) model as a non-destructive method to estimate above and belowground biomass, and plant architecture. The FBA utility for shrubs was unknown and required modification. This research used destructive measurements to validate modifications to the FBA model that included subcategorisation of the tapering coefficient for twig, branch, and wood diameter classes, and addition of a fruit load parameter in the distal link. The modified FBA model confirmed jatropha to be a shrub rather than a tree, producing variable estimates for aboveground biomass. This variation was due to morphological plasticity in the length-diameter relationship of the branches that diverged from fractal branching architecture. Fruit biomass variation between replicates was not well estimated and total proximal root diameter was a poor predictor of total root biomass, due to the proximal roots having enlarged water storage structures that do not follow fractal branching assumptions. Jatropha fruit was shown to predominate on twigs with a diameter between 0.9 and 1.4 cm. Understanding the correlation between fruit development and plant architecture will be necessary for fine-tuning the FBA model for future commercial breeding and selection. The high degree of morphological plasticity displayed by jatropha requires consideration when determining plant biomass.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tree or shrub: a functional branch analysis of Jatropha curcas L.

Tjeuw¹,

Mulia²,

Slingerland³

et al. 2015

Agroforest Syst

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“…No obstante, se ha resaltado que, los requerimientos necesarios para obtener rendimientos económicamente viables han sido subestimados y concomitantemente con este hecho se han retirado muchos capitales de inversión (7)(8)(9). A pesar de esta regresión de inversiones, la producción de biocombustibles y otros productos derivados del Piñón bajo condiciones favorables de cultivo sigue siendo un concepto que recibe un considerable interés político y comercial (10,11). Los proyectos de cultivo de Piñón activos alrededor del mundo para el 2011 fue de 260 comparado con los 242 del 2008.…”

Section: Introductionunclassified

Viabilidad económica y financiera de sistemas silvopastoriles con Jatropha curcas L. en Manabí, Ecuador

Cañadas-López

Zambrano

et al. 2017

Rev MVZ Córdoba

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Objetivo. Evaluar la viabilidad económica y financiera de los sistemas silvopastoriles tradicionales para la producción de Biocombustibles como aporte a la sostenibilidad del proyecto “Piñón para Galápagos”. Materiales y Métodos. Se llevaron a cabo encuestas a 450 pequeños productores ganaderos de 10 cantones de la provincia de Manabí con la finalidad de colectar información agronómica, manejo, costos implicados en establecimiento y producción de los sistemas silvopastoriles vigentes de Piñón (Jatropha curcas L.)/Saboya (Megathyrsus maximus). Para recopilar datos de producción del Piñón establecido en cercas vivas de Piñón INIAP CP041 e igualmente se registró la producción de sistemas en 10 sitios, desde el año 2009. Con estos datos se calcularon los siguientes indicadores financieros radio beneficio/costo (B/C), valor actual neto (VAN), tasa interna de retorno (TIR) y valor de expectativa de la tierra (VET). Resultados. El estudio mostró una disminución de la producción del Piñón con el transcurso del tiempo. El sistema silvopastoril mejorado con Piñón INIAP CP041 mostró B/C 1.07, VAN de USD$ 404.11, VET USD$ 970.23 y TIR de 18%. Seguido del sistema silvopastoril con Piñón local con un B/C 1.06, VAN de USD$ 363.66, VET USD$ 873.10 y TIR de 17% y finalmente sistema silvopastoril sin cosecha del Piñón con un B/C 1.05, VAN de USD$ 285.72, VET USD$ 685.99 y TIR de 15%. Conclusiones. La alternativa de producción de biocombustibles con sistemas silvopastoriles Piñón (INIAP CP041)/Saboya en Manabí es el sistema de mayor rentabilidad y no competiría por superficies de cultivo para la producción de alimentos, sin afectar a la seguridad alimentaria.

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“…Some potential attributes of biodiesel production from Jatropha include energy security, revitalizing marginal and degraded lands and alleviating rural poverty through employment and sustainable biofuel production (Abhilash et al, 2013;Ariza-Montobbio et al, 2010;Kant and Wu, 2011;Edrisia et al, 2015). Furthermore, the use of ethanol instead of methanol is interesting due to the possibility of producing a fully renewable biodiesel, producing fatty acid ethyl ester (FAEE).…”

Section: Introductionmentioning

confidence: 99%

Lipase-catalyzed ethanolysis of Jatropha curcas L. oil assisted by ultrasonication

Lerin

Remonatto

Pereira

et al. 2017

Braz. J. Chem. Eng.

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-Transesterification of non-edible oils using immobilized lipase is a promising process for biodiesel production. Thus, this study aimed to evaluate the enzymatic transesterification of the non-edible Jatropha curcas oil for FAEE production under ultrasound irradiation in a solvent-free system. The effects of enzyme concentration, water concentration, molar ratio of ethanol to oil and ultrasound power on the FAEE conversion have been evaluated. The results show that enzyme concentration and irradiation power have a positive significant effect on FAEE conversion, where an increase in these variables leads to higher conversions. Conversion above 54% of FAEE was achieved with 1.5 hours of reaction time using ultrasound irradiation, reducing reaction time by at least 3 times, when compared with the same experimental conditions without ultrasound irradiation. Results showed that ultrasound can improve reaction conversion mainly by enhancing the mass transfer between the constituents of the reactions.

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Jatropha curcas L.: A crucified plant waiting for resurgence

Cited by 107 publications

References 68 publications

Tree or shrub: a functional branch analysis of Jatropha curcas L.

Tree or shrub: a functional branch analysis of Jatropha curcas L.

Viabilidad económica y financiera de sistemas silvopastoriles con Jatropha curcas L. en Manabí, Ecuador

Lipase-catalyzed ethanolysis of Jatropha curcas L. oil assisted by ultrasonication

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