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Sustainability 2018, 10(1), 90;

Algerian Carob Tree Products: A Comprehensive Valorization Analysis and Future Prospects

Department of Food Science, Faculty of Natural Sciences and Life, Abderrahmane Mira University, Bejaia 06000, Algeria
Department of Chemical and Environmental Engineering, Technical University of Cartagena, Campus Muralla del Mar C/Doctor Fleming s/n, Cartagena, 30202 Murcia, Spain
Department of Chemical Engineering, Faculty of Chemistry, University of Murcia, 30202 Murciax, Spain
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 25 December 2017 / Accepted: 29 December 2017 / Published: 1 January 2018
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This research presents a thorough analysis of the nutrients and anti-nutrients contained in different products from Algerian carob tree, Ceratonia siliqua L. (pod, pulp, seeds and leaves). Other parameters such as moisture, ash content and calorific value were also determined. The main purpose was to characterize these products derived from carob tree and analyze their possible valorization in several fields such as chemical, energy or medical industries. The results show that these products contain low amount of crude lipids (2.4–4.5%), moderate amounts of protein (4–7.4%) and high levels of total sugar (up to 66.6%). The compositional analysis reveals high nutritional values but, at the same time, it is also worth underscoring their high content in anti-nutrients: (i) trypsin inhibitor (6.4–7.3 mg·g−1); and (ii) phytic acid (0.6–0.94 mg·g−1). This work quantifies these two secondary metabolites in carob tree products for the first time. Finally, based on the results obtained, a process scheme is proposed for the complete use of carob tree products, including the use of anti-nutrients (trypsin inhibitors and phytic acid) for bio-medical applications since many research studies support that these compounds have great potential in this field. View Full-Text
Keywords: carob tree; valorization; anti-nutrients; sugars; proteins; lipids; calorific value carob tree; valorization; anti-nutrients; sugars; proteins; lipids; calorific value

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Mahtout, R.; Ortiz-Martínez, V.M.; Salar-García, M.J.; Gracia, I.; Hernández-Fernández, F.J.; Pérez de los Ríos, A.; Zaidia, F.; Sanchez-Segado, S.; Lozano-Blanco, L.J. Algerian Carob Tree Products: A Comprehensive Valorization Analysis and Future Prospects. Sustainability 2018, 10, 90.

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