Second Generation Ethanol from Residual Biomass: Research and Perspectives in Ecuador

Barriga, Enrique Javier Carvajal; Guamán-Burneo, Cristina; Barahona, Patricia Portero; Salas, Edgar; Tufiño, Carolina; Bastidas, Bernardo

doi:10.5772/51951

Cited by 4 publications

(2 citation statements)

References 60 publications

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“…from Ficus benjamina, Euphorbia laurifolia), and others have been lately successfully studied as feedstocks for bioethanol production [54][55][56][57][58][59][60][61][62]. For a complete overview of research and perspectives for second generation ethanol production from Ecuador residual biomass in earlier years, please refer to the work of Carvajal et al [63] Lately, some studies have assessed the potential of second generation ethanol from banana wastes [54; 55]. In the first approach, theoretical calculations were developed to estimate the conversion efficiency.…”

Section: Alcoholic Fermentationmentioning

confidence: 99%

Latest energy and value-added product synthesis

Ponce¹

2021

Av. Cienc. Ing. (Quito)

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Biomass is key towards the production of renewables, heat, biofuels, and green chemical feedstocks. Based on results reported in the literature, Ecuador, an agriculture-based economy, has the potential of meeting its energy demands while satisfying environmental regulations, by the conversion of self-generated residual biomass. Conventional biological, chemical and thermochemical methods have been modeled and widely studied at laboratory scale for the production of biogas, bioethanol, and other solid and liquid fuels, being milestones for upcoming scaled-up applications. Recently, studies have also shown the development of new processes for the conversion of Ecuadorian biomass wastes into value-added products for future applications. Providing a more complete way to manage the waste problem, aiming to create a sustainable economic growth within a bio-economy perspective.

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Section: Alcoholic Fermentationmentioning

confidence: 99%

Latest energy and value-added product synthesis

Ponce¹

2021

Av. Cienc. Ing. (Quito)

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“…In the Ecuadorian Amazon, the expansion of the agricultural frontier continues to generate large amounts of organic residue (Carvajal Barriga et al, 2013;Solíz Torre,2015;Orejuela-Escobar et al, 2021). In order to access the viability of bioproducts originating from organic residues (Orejuela-Escobar et al, 2021) that can be incorporated into value chains of small producers (Ramírez-Iglesias et al, 2017;Ramírez-Iglesias, 2020), the quality of source substrates need to be determined in terms of C/N ratios (Hu et al, 2021;Ramakrishnan et al, 2021), decomposition times (Anderson and Ingram, 1989) and nutrient content (Castro-Bedriñana et al, 2020;Das and Deka, 2021).…”

Section: Introductionmentioning

confidence: 99%

Interaction between organic substrates of the southern region of the Ecuadorian Amazon and the presence of Eisenia foetida

Ramírez-Iglesias,

Gualán,

Guayanay

et al. 2023

Agro sur

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This study aimed to evaluate the possible interaction between the chemical properties of some organic substrates of the southern region of the Ecuadorian Amazon and the development and reproduction of the red earthworm (Eisenia foetida), to obtain a bioproduct that can be used as organic fertiliser by producers of the region. The treatments used in the experience were: domestic organic waste (DOW), guinea pig excreta (GPE) and sugar cane waste (SCR), the control (CT) was a clay loam soil from the area. The chemical characterisation of the substrates was carried out before and during the introduction of the earthworms. After the pretreatment period (15 days), 30 individuals of E. foetida were placed in each bed, totalling 360 individuals. Initially, all the substrates showed low nutritional contents, as well as high C/N ratios, a trend that was maintained until the end of the experiment. After 25 days of composting, it was observed that the GPE treatment showed a pH close to neutrality, as well as greater nutrient availability. GPE and DOW were the organic residues with the best conditions for the development of E. foetida. After 45 days of the introduction of the earthworms, the vermicompost obtained could already be used as organic fertiliser, given the availability of nutrients.

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