Examinando por Autor "Aguilar, Francisco"

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Tropical agroindustrial biowaste revalorization through integrative biorefineries—review part I: coffee and palm oil by-products
(Springer (Alemania), 2023) Mora Villalobos, José Aníbal; Aguilar, Francisco; Carballo Arce, Ana Francis; Jose-Roberto, Vega-Baudrit; Trimino-Vazquez, Humberto; Villegas Peñaranda, Luis Roberto; Stöbener, Anne; Eixenberger, Daniela; Bubenheim, Paul; Sandoval-Barrantes, Manuel; Liese, Andreas
Tropical crops are an important source of wealth in many countries. The current agribusiness model is based on the production of a final commodity, leading to the production of organic by-products (biowastes) that in many cases contain bioactive compounds with a potential added value. The exploitation of these by-products is the foundation of the circular economy that leads to the generation of greener bioprocesses for the industry with foreseeable economic improvements in production systems. This review aims to point out the idle opportunities of agricultural production systems and their associated biowastes to contribute to the establishment of a bioeconomy. Hence, the focus lies on five tropical extensive crops: coffee, oil palm, sugar cane, banana, and pineapple. This first part of the review explores agricultural wastes originated from the coffee and oil palm industrial process and is oriented on the potential use of these by-products as a starting material for the alternative obtention of chemicals, otherwise obtained from petrochemistry. The second part of the review focuses on prospective use of lignocellulosic rich biowaste that is derived from the industrialization of sugar cane, banana, and pineapple. A fundamental difference for the use of coffee biomass compared to other crops is the presence of numerous bioactive compounds that are not yet properly utilized, such as antioxidants (i.e., caffeic acid, chlorogenic acid, ferulic acid), as well as their possible use in the manufacture of products of interest in the cosmetic (i.e., quinic acid) or pharmaceutical industry (i.e., caffeic acid phenethyl ester). In the case of oil palm, its potential lies in obtaining chemicals such as glycerol and carotenoids, or in the bioenergy production.
Tropical agroindustrial biowaste revalorization through integrative biorefineries—review part II: pineapple, sugarcane and banana by‑products in Costa Rica
(Springer (Alemania), 2024) Eixenberger, Daniela; Carballo Arce, Ana Francis; Jose-Roberto, Vega-Baudrit; Trimino‑Vazquez, Humberto; Villegas Peñaranda, Luis Roberto; Stöbener, Anne; Aguilar, Francisco; Mora Villalobos, José Aníbal; Sandoval-Barrantes, Manuel; Bubenheim, Paul; Liese, Andreas
Biorefineries are a model for greener production processes, based on the concept of bioeconomy. Instead of targeting firstgeneration biofuels—that compete with food supply—the focus relies on lignocellulosic material, considering many aspects, such as sustainable fuel production, as well as valorization of waste, as an alternative to the traditional petrochemical approach of goods production. Especially, in tropical countries agricultural activities lead to tremendous amounts of biomass, resulting in waste that has to be dealt with. In the case of Costa Rica, the five major crops cultivated for export are coffee, oil palm, pineapple, sugarcane, and banana. Traditional ways of waste treatment cannot cope with the increasing amount of biomass produced and therefore, bear various challenges often related to increased pollution. This review aims to bring up the recent state of waste treatment but even more, stress potential opportunities of adding value to not used residues; thus, improve sustainability in the agro industrial sector. Part I of the review already highlighted the potential of producing promising bioactive chemical compounds by novel biorefinery concepts from agricultural waste originating from coffee and oil palm cultivation. This second part focuses on the lignocellulose-rich biowaste from pineapple, sugarcane, and banana, showing biorefinery concepts, where fuel and energy production, as well as establishment of novel products and new applications, play an important role.