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Djebari S, Wrona M, Nerín C, Djaoudene O, Guemouni S, Boudria A, Madani K. Phenolic compounds profile of macerates of different edible parts of carob tree (Ceratonia siliqua L.) using UPLC-ESI-Q-TOF-MS E: Phytochemical screening and biological activities. Fitoterapia 2024; 172:105696. [PMID: 37797792 DOI: 10.1016/j.fitote.2023.105696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/30/2023] [Accepted: 10/02/2023] [Indexed: 10/07/2023]
Abstract
Locust bean pulp and gum extracts were prepared, and phytochemical tests based on color reactions and chromatographic analyzes were performed. A profile of seventy-six phenolic compounds was obtained by the ultra-high performance liquid chromatography with electrospray ionization and quadrupole time-of-flight mass spectrometry. The main groups of phenolic compounds identified in the both extracts of Ceratonia siliqua L., were flavonoids, tannins and phenolic acids. Moreover, carob pulp and gum extracts were tested for their antimicrobial activity using disk diffusion tests which showed sensitivity of the different strains to the analyzed extracts at a concentration of 100 mg/mL. Additionally, the antioxidant activity of Ceratonia siliqua L. extracts was assessed by the 2,2-diphenyl-1-picrylhydrazyl acid test, which confirmed stronger antioxidant properties in the case of the pulp extract. To sum up, carob pulp and gum extracts present promising alternatives to synthetic additives within the medicinal industry, serving as potential antioxidant agents and preservatives that combat bacterial contamination, thereby offering a more natural approach to enhancing product safety and efficacy.
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Affiliation(s)
- Sabrina Djebari
- Laboratoire de Biomathématique, Biophysique, Biochimie et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algeria.
| | - Magdalena Wrona
- Universidad de Zaragoza, Departamento de Química Analítica, Instituto de Investigación en Ingeniería de Aragon (I3A), María de Luna 3, 50018 Zaragoza, Spain.
| | - Cristina Nerín
- Universidad de Zaragoza, Departamento de Química Analítica, Instituto de Investigación en Ingeniería de Aragon (I3A), María de Luna 3, 50018 Zaragoza, Spain.
| | - Ouarda Djaoudene
- Centre de Recherche en Technologies Agroalimentaires, Route de Targa Ouzemmour, Campus Universitaire, Bejaia 06000, Algeria.
| | - Sara Guemouni
- Laboratoire de Biomathématique, Biophysique, Biochimie et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algeria.
| | - Asma Boudria
- Laboratoire de Biomathématique, Biophysique, Biochimie et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algeria.
| | - Khodir Madani
- Laboratoire de Biomathématique, Biophysique, Biochimie et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algeria; Centre de Recherche en Technologies Agroalimentaires, Route de Targa Ouzemmour, Campus Universitaire, Bejaia 06000, Algeria.
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Dahmani W, Elaouni N, Abousalim A, Akissi ZLE, Legssyer A, Ziyyat A, Sahpaz S. Exploring Carob ( Ceratonia siliqua L.): A Comprehensive Assessment of Its Characteristics, Ethnomedicinal Uses, Phytochemical Aspects, and Pharmacological Activities. PLANTS (BASEL, SWITZERLAND) 2023; 12:3303. [PMID: 37765467 PMCID: PMC10537686 DOI: 10.3390/plants12183303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
The carob tree (Ceratonia siliqua L.) is currently considered one of the most valuable fruit and forest trees in various fields and sectors of activity. It is a versatile plant, belonging to the Fabaceae family. It is widely used in traditional medicine to treat many diseases such as diabetes, hypertension, and gastrointestinal disorders, given that all its parts (leaves, flowers, pods, seeds, wood, bark, and roots) are useful and hold value in many areas. Its importance has increased significantly in recent years. Originating from the Middle East, it is recognized for its ecological and industrial significance. Previous studies conducted on Ceratonia siliqua L. have revealed the presence of several compounds, including polyphenols, flavonoids, carbohydrates, minerals, and proteins. The carob tree demonstrates antihypertensive, antidepressant, anti-obesity, and antihyperglycemic activities. This plant is known for its medicinal and therapeutic virtues. Moreover, it is particularly interesting to consider the pharmacological activities of the major phytochemical compounds present in the different extracts of this plant, such as phenolic acids, for example, coumaric and gallic acids, as well as flavonoids such as kaempferol and quercetin. Therefore, this review aims to analyze some aspects of this plant, especially the taxonomy, cytogeography, traditional uses, phytochemical constituents, and pharmacological activities of Ceratonia siliqua L., in addition to its biological properties.
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Affiliation(s)
- Widad Dahmani
- Laboratory of Bioresources, Biotechnologies, Ethnopharmacology and Health, Department of Biology, Faculty of Sciences, University Mohammed First, Oujda 60000, Morocco; (W.D.); (N.E.); (A.L.); (A.Z.)
| | - Nabia Elaouni
- Laboratory of Bioresources, Biotechnologies, Ethnopharmacology and Health, Department of Biology, Faculty of Sciences, University Mohammed First, Oujda 60000, Morocco; (W.D.); (N.E.); (A.L.); (A.Z.)
| | - Abdelhadi Abousalim
- Plant Tissue Culture Laboratory, Horticultural and Local Products Unit, Plant Production, Protection and Biotechnology Department, Hassan II Institute of Agronomy and Veterinary Medicine, 6202 Rabat-Instituts, Rabat 10112, Morocco;
| | - Zachée Louis Evariste Akissi
- Joint Research Unit 1158 BioEcoAgro INRAE, University of Lille, University of Liège, UPJV, JUNIA, University of Artois, ULCO, 5900 Lille, France;
| | - Abdelkhaleq Legssyer
- Laboratory of Bioresources, Biotechnologies, Ethnopharmacology and Health, Department of Biology, Faculty of Sciences, University Mohammed First, Oujda 60000, Morocco; (W.D.); (N.E.); (A.L.); (A.Z.)
| | - Abderrahim Ziyyat
- Laboratory of Bioresources, Biotechnologies, Ethnopharmacology and Health, Department of Biology, Faculty of Sciences, University Mohammed First, Oujda 60000, Morocco; (W.D.); (N.E.); (A.L.); (A.Z.)
| | - Sevser Sahpaz
- Joint Research Unit 1158 BioEcoAgro INRAE, University of Lille, University of Liège, UPJV, JUNIA, University of Artois, ULCO, 5900 Lille, France;
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Kavvoura DA, Stefanakis MK, Kletsas D, Katerinopoulos HE, Pratsinis H. Biological Activities of Ceratonia siliqua Pod and Seed Extracts: A Comparative Analysis of Two Cretan Cultivars. Int J Mol Sci 2023; 24:12104. [PMID: 37569477 PMCID: PMC10418674 DOI: 10.3390/ijms241512104] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Ceratonia siliqua L., commonly known as the carob tree, appears in most Mediterranean countries, often cultivated for the collection of its fruits to be used as food for humans and animals. This study was aimed at the phytochemical characterization of two common Cretan C. siliqua cultivars and the biological evaluation of deseeded pod and seed extracts regarding their putative use in cosmetics. Gas and liquid chromatographic techniques were used to assess their essential oil, fatty acid, and carbohydrate profiles. Cell-free assays, including free-radical scavenging; the inhibition of tyrosinase and collagenase; the blocking of advanced glycation end product (AGE) formation; along with assays in human skin fibroblast cultures, i.e., reactive oxygen species suppression, glutathione stimulation, and protection from oxidative stress and from ultraviolet (UVB) radiation, were also used. Extracts from both cultivars were found to possess antioxidant capacity, tyrosinase- and collagenase-inhibitory activities, an ability to block glucose-induced AGEs, and in certain cases, UVB absorbance and photoprotective activities. Seed extracts were in general more active, while the use of 30% aqueous methanol seemed to be more efficient than n-hexane for extraction. Serial partition of the most active extracts resulted in fractions with enriched biological activities. These properties make Cretan carob extracts and their fractions suitable candidates for use in cosmetics.
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Affiliation(s)
- Dafni-Alexandra Kavvoura
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, NCSR “Demokritos”, 15341 Athens, Greece; (D.-A.K.); (D.K.)
| | - Michalis K. Stefanakis
- Laboratory of Organic Chemistry, Department of Chemistry, University of Crete, 70013 Heraklion, Greece; (M.K.S.); (H.E.K.)
| | - Dimitris Kletsas
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, NCSR “Demokritos”, 15341 Athens, Greece; (D.-A.K.); (D.K.)
| | - Haralambos E. Katerinopoulos
- Laboratory of Organic Chemistry, Department of Chemistry, University of Crete, 70013 Heraklion, Greece; (M.K.S.); (H.E.K.)
| | - Harris Pratsinis
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, NCSR “Demokritos”, 15341 Athens, Greece; (D.-A.K.); (D.K.)
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Lopes J, Malheiro C, Prodana M, Loureiro S, Ferreira P, Coimbra MA, Gonçalves I. Locust bean milling-derived dust as a raw material for the development of biodegradable bioplastics with antioxidant activity. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1088-1096. [PMID: 35315088 DOI: 10.1002/jsfa.11883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Non-value agrifood byproducts are rich in biomolecules such as proteins and polysaccharides, and possess film-forming ability, motivating their use in the development of biodegradable plastics. This work studied the feasibility of using locust bean milling-derived dust (LBMD) as a source of biomolecules suitable for developing biodegradable plastics. RESULTS LBMD is composed of 56% protein, 28% carbohydrate, 10% moisture, 6% lipid, and 2% ash. In addition, phenolic compounds are also present. The carbohydrates are mainly composed by (1 → 4)-mannose, (1 → 4,6)-mannose, and t-galactose glycosidic linkages. Depending on the LBMD concentration used, when employed in casting biodegradable plastics, LBMD yields transparent yellowish bioplastics with 90% elongation at break and surface water contact angles ranging from 60° to 90°. Additionally, LBMD-based bioplastics display antioxidant activity, inhibiting cationic 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals up to 61% in just 24 h. LBMD-based bioplastics are disintegrated when incubated on the soil surface for 34 weeks, perhaps acting as a soil nutrient. CONCLUSION LBMD represents a potential source of biomolecules for producing transparent, flexible, water tolerant, antioxidant, and biodegradable bioplastics, opening up opportunities to implement a novel circular strategy to valorize this locust bean industry byproduct. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Joana Lopes
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Aveiro, Portugal
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Catarina Malheiro
- CESAM, Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Marija Prodana
- CESAM, Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Susana Loureiro
- CESAM, Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Paula Ferreira
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Aveiro, Portugal
| | - Manuel A Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Idalina Gonçalves
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Aveiro, Portugal
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Akouz A, Hasib A, Fernández-Trujillo JP, Elbatal H, Elkacmi R, Boulli A. Optimization of Carob (Ceratonia siliqua L.) Pulp Powder Roasting to Improve Its Quality by Using Central Composite Design. FOOD BIOPROCESS TECH 2023. [DOI: 10.1007/s11947-023-02995-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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de la Fuente-Fernández M, de la Fuente-Muñoz M, Román-Carmena M, Amor S, García-Redondo AB, Blanco-Rivero J, González-Hedström D, Espinel AE, García-Villalón ÁL, Granado M. Carob Extract Supplementation Together with Caloric Restriction and Aerobic Training Accelerates the Recovery of Cardiometabolic Health in Mice with Metabolic Syndrome. Antioxidants (Basel) 2022; 11:antiox11091803. [PMID: 36139877 PMCID: PMC9495762 DOI: 10.3390/antiox11091803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Carob, the fruit of Ceratonia siliqua L. exerts antidiabetic, anti-inflammatory, and antioxidant effects and could be a useful strategy for the treatment and/or prevention of metabolic syndrome (MetS). The aim of this study was to analyze whether supplementation with a carob fruit extract (CSAT+®), alone or in combination with aerobic training, accelerates the recovery of cardiometabolic health in mice with MetS subjected to a caloric restriction. For this purpose, mice were fed with a high fat (58% kcal from fat)/high sugar diet for 23 weeks to induce MetS. During the next two weeks, mice with MetS were switched to a diet with a lower caloric content (25% kcal from fat) supplemented or not with CSAT+® (4.8%) and/or subjected to aerobic training. Both caloric reduction and aerobic training improved the lipid profile and attenuated MetS-induced insulin resistance measured as HOMA-IR. However, only supplementation with CSAT+® enhanced body weight loss, increased the circulating levels of adiponectin, and lowered the plasma levels of IL-6. Moreover, CSAT+® supplementation was the only effective strategy to reduce the weight of epidydimal adipose tissue and to improve insulin sensitivity in the liver and in skeletal muscle. Although all interventions improved endothelial function in aorta segments, only supplementation with CSAT+® reduced obesity-induced hypertension, prevented endothelial dysfunction in mesenteric arteries, and decreased the vascular response of aorta segments to the vasoconstrictor AngII. The beneficial cardiometabolic effects of CSAT+® supplementation, alone or in combination with aerobic training, were associated with decreased mRNA levels of pro-inflammatory markers such as MCP-1, TNFα, IL-1β, and IL-6 and with increased gene expression of antioxidant enzymes, such as GSR, GPX-3, and SOD-1 in the liver, gastrocnemius, retroperitoneal adipose tissue, and aorta. In conclusion, supplementation with CSAT+®, alone or in combination with aerobic training, to mice with MetS subjected to caloric restriction for two weeks enhances body weight loss, improves the lipid profile and insulin sensitivity, and exerts antihypertensive effects through its anti-inflammatory and antioxidant properties.
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Affiliation(s)
| | - Mario de la Fuente-Muñoz
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Marta Román-Carmena
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Sara Amor
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Ana Belén García-Redondo
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28029 Madrid, Spain
- CIBER Enfermedades Cardiovasculares, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Javier Blanco-Rivero
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28029 Madrid, Spain
- CIBER Enfermedades Cardiovasculares, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Daniel González-Hedström
- R&D Department, Pharmactive Biotech Products S.L.U., Parque Científico de Madrid, Calle Faraday 7, 28049 Madrid, Spain
| | - Alberto E. Espinel
- R&D Department, Pharmactive Biotech Products S.L.U., Parque Científico de Madrid, Calle Faraday 7, 28049 Madrid, Spain
| | | | - Miriam Granado
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición. Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence:
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Ceratonia siliqua L. kibbles, seeds and leaves as a source of volatile bioactive compounds for antioxidant food biopackaging applications. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2021.100764] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Ben Ayache S, Behija Saafi E, Emhemmed F, Flamini G, Achour L, Muller CD. Biological Activities of Aqueous Extracts from Carob Plant ( Ceratonia siliqua L.) by Antioxidant, Analgesic and Proapoptotic Properties Evaluation. Molecules 2020; 25:molecules25143120. [PMID: 32650498 PMCID: PMC7397290 DOI: 10.3390/molecules25143120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 01/11/2023] Open
Abstract
The present work describes the volatile compounds profile and phytochemical content of Ceratonia siliqua L. Fifty different components have been identified. Among them, three constituents are shared i.e., 2-methlybutanoic acid, methyl hexanoate and limonene by different common carob preparations: pulp decoction (PD), seeds decoction (SD) and Rob, a sweet syrup extracted from the pulp of the carob pod. Each extract exhibits different volatile aromatic emission profiles. The antioxidant activity of the extracts was evaluated using three methods, DPPH, ABTS and FRAP, producing a dose-dependent response. The IC50, when determined by FRAP, gave the lowest values (0.66 ± 0.01, 0.73 ± 0.05 and 0.55 ± 0.00 mg/mL PD, SD and Rob, respectively). The nociception essay, after intraperitoneal injection of acetic acid in mice, demonstrated that Rob, pulp and seeds decoction extracts showed an efficient inhibition of writhes over time, with persistence over 30 min. The SD decoction revealed the highest efficacy in decreasing the writhing reflex (90.3 ± 1.2%; p < 0.001). Furthermore, the proapoptotic activity of SD against three human cell line, THP-1, MCF-7 and LOVO, evaluated by flow cytometry, showed a significantly stronger proapoptotic activity on colon cancer (LOVO) than on the other cell lines, a phenomenon known as phenotypic selectivity.
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Affiliation(s)
- Siwar Ben Ayache
- Research Laboratory “Bioresources, Integrative Biology & Valorization”, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (E.B.S.); (L.A.)
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France;
- Correspondence: (S.B.A.); (C.D.M.); Tel.: +216-73-463-716 (S.B.A.); Fax: +216-73465-404 (S.B.A.)
| | - Emna Behija Saafi
- Research Laboratory “Bioresources, Integrative Biology & Valorization”, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (E.B.S.); (L.A.)
| | - Fathi Emhemmed
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France;
| | - Guido Flamini
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy;
- Centro Interdipartimentale di Ricerca “Nutraceutica e Alimentazione per la Salute” Nutrafood, Università di Pisa, 56124 Pisa, Italy
| | - Lotfi Achour
- Research Laboratory “Bioresources, Integrative Biology & Valorization”, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (E.B.S.); (L.A.)
| | - Christian D. Muller
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France;
- Correspondence: (S.B.A.); (C.D.M.); Tel.: +216-73-463-716 (S.B.A.); Fax: +216-73465-404 (S.B.A.)
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Fidan H, Stankov S, Petkova N, Petkova Z, Iliev A, Stoyanova M, Ivanova T, Zhelyazkov N, Ibrahim S, Stoyanova A, Ercisli S. Evaluation of chemical composition, antioxidant potential and functional properties of carob ( Ceratonia siliqua L.) seeds. Journal of Food Science and Technology 2020; 57:2404-2413. [PMID: 32549590 DOI: 10.1007/s13197-020-04274-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/10/2019] [Accepted: 01/22/2020] [Indexed: 11/26/2022]
Abstract
The interest in carob pod as an ingredient of functional foods is constantly increasing due to its beneficial health effect and functional properties. The aim of this study was to evaluate the chemical composition and antioxidant potential of carob seeds, as well as the functional properties of its isolated galactomannan fraction. The lipid, protein, carbohydrate and phenolic composition were analysed. The obtained results demonstrated that the main detected fatty acids were oleic (45.0%), linoleic (32.4%), and palmitic (16.6%) acid. The primary tocopherol in the tested tocopherol fraction was γ-tocopherol (53.1%). It was established that β-sitosterol (74.2%) and stigmasterol (12.8%) predominated in the sterol fraction. Carob seed was characterized by high protein (25.7%) content, while mannose and galactose were the dominating monosaccharides. Moreover, the isolated galactomannan from carob seed demonstrated good swelling properties-30.1 ml per g sample and oil-holding capacity (27.9 g/g sample). The total polyphenolic and flavonoids content of carob seeds was 1.76 mg Gallic acid equivalent/g dry weight and 0.30 mg quercetin equivalents/g dry weight, respectively. The carob seeds showed the highest antioxidant potential by cupper reduction assay-15.71 mM Trolox® equivalent/g dry weight. The mineral composition was also defined as the macroelements Ca and Mg were the predominant minerals in the seed. The obtained results showed that carob seeds were a valuable source not only of phenolic compounds and antioxidants, but also of proteins, lipids, galactomannan with functional properties that could improve the nutritional value of foods in which are incorporated.
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Affiliation(s)
- Hafize Fidan
- University of Food Technologies, Plovdiv, Bulgaria
| | | | | | - Zhana Petkova
- Paisii Hilendarski University of Plovdiv, Plovdiv, Bulgaria
| | - Angel Iliev
- Institude of Food Preservation and Quality, Plovdiv, Bulgaria
| | | | | | | | - Salam Ibrahim
- Food Microbiology and Biotechnology Laboratory, North Carolina Agricultural and Technical State University, Greensboro, NC USA
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