Nutritional assessment, phytochemical composition and antioxidant analysis of the pulp and seed of medjool date grown in Mexico
Autor: | Navor Rosas-González, Benjamín Valdez-Salas, Robert Krueger, Antonio Morales-Maza, Laura Díaz-Rubio, Noé Ortiz-Uribe, María del Pilar Haro-Vázquez, Ricardo Salomón-Torres, Iván Córdova-Guerrero, Daniel Chávez, Padmanabhan Mahadevan, José Luis Mijangos-Montiel, Conrado García-González |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
0106 biological sciences
Phoenix dactylifera L DPPH Chemical composition chemistry.chemical_element lcsh:Medicine Plant Science engineering.material Biochemistry 01 natural sciences Date palm General Biochemistry Genetics and Molecular Biology Palmitic acid chemistry.chemical_compound Seed date 0404 agricultural biotechnology Food science Agricultural Science Mexico Unsaturated fatty acid chemistry.chemical_classification Minerals General Neuroscience Phosphorus Pulp (paper) lcsh:R Fatty acid 04 agricultural and veterinary sciences General Medicine Food Science and Technology 040401 food science Lauric acid Oleic acid chemistry engineering Antioxidant activities Medjool General Agricultural and Biological Sciences 010606 plant biology & botany |
Zdroj: | PeerJ, Vol 7, p e6821 (2019) PeerJ |
ISSN: | 2167-8359 |
Popis: | The aim of this study was the characterization of fatty acids, antioxidant activity, some physical properties, nutrient content, sugars, and minerals in the pulp and seeds of the date cultivar ‘Medjool’ (Phoenix dactyliferaL.) grown in Mexico. The samples were obtained at maturity (Tamar) in the 2017 harvest season in the valleys of San Luis Rio Colorado and Mexicali, Mexico. The following average values were obtained on a % dry weight basis for pulp and seeds, respectively: protein, 3.14% and 4.84%; lipids, 0.75% and 9.94%; fiber, 6.34% and 66.79%; total sugars, 75.32% and 5.88%; reducing sugars, 70.26% and 4.40%; and sucrose, 5.06% and 1.46%. Analysis of the minerals revealed that the most abundant elements for the pulp were: potassium, 851.98 mg/100 g; magnesium, 142.97 mg/100 g; and phosphorus, 139.40 mg/100 g, whereas for the seeds, they were potassium, 413.36 mg/100 g; sulfur, 151.36 mg/100 g; and phosphorus, 92.42 mg/100 g. Gas chromatography-mass spectrometry analysis revealed that the major unsaturated fatty acid was oleic acid, at 52.34% and 45.92%, respectively, for pulp and seeds. The main saturated fatty acids were palmitic acid (6.75%) and lauric acid (17.24%) in pulp and seeds, respectively. The total phenolic content was 1.16 and 13.73 mg GAE/100 g for pulp and seeds, respectively. Finally, the antioxidant activities were: b-carotene, 65.50% and 47.75%; DPPH, 0.079 IC50g/L and 0.0046 IC50g/L; and ABTS, 13.72 IC50g/L and 0.238 IC50g/L, respectively. The results obtained in this study confirm that the ‘Medjool’ cultivar grown in Mexico has the same quality of nutrients and antioxidants as those grown in the other main date-producing countries. |
Databáze: | OpenAIRE |
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