Caracterización morfológica y composición química de chayotas (Sechium edule) cultivadas en las Islas Canarias (España)

Morphological characteristics related to the fruit, thorns, endocarp and seed, as well as physicochemical and nutritional parameters (moisture, protein, ºBrix, fiber, ash, pH, acidity, ascorbic acid, total phenolics, minerals: Na, K, Ca and Mg, and trace elements: Fe, Cu, Zn and Mn) were analyzed in...

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Bibliographic Details
Published inArchivos latinoamericanos de nutrición Vol. 65; no. 4; pp. 243 - 253
Main Authors Castro Rodríguez JM, Toledo Díaz AM, Rodríguez, Galdón B, Perdomo, Molina A, Rodríguez-Rodríguez, E M, Díaz, Romero C
Format Journal Article
LanguageEnglish
Spanish
Portuguese
Published Caracas José Féliz Chávez Pérez 01.12.2015
Sociedad Latinoamericana de Nutrición
Subjects
Chemical compounds
Discriminant analysis
Food
Morphology
Nutrition
NUTRITION & DIETETICS
Phenols
Spain
Tenerife
morphological
nutrition value
Chayota
Chayote
valor nutritivo
chemical composition
morfología
sampling date
fecha de muestreo
composición química
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Summary:Morphological characteristics related to the fruit, thorns, endocarp and seed, as well as physicochemical and nutritional parameters (moisture, protein, ºBrix, fiber, ash, pH, acidity, ascorbic acid, total phenolics, minerals: Na, K, Ca and Mg, and trace elements: Fe, Cu, Zn and Mn) were analyzed in samples of chayote (Sechium edule) belonging to 7 accessions grown on the islands of Tenerife and La Palma (Spain) and harvested during the period between June and November 2005. Significant differences in chemical composition and morphology between the chayote accessions studied were observed. The accession 4 features a high mineral content and soluble solids (Brix degree) and low water content, while the accession 1 had high contents of Na, ash and ascorbic acid. The moisture content and ascorbic acid varied depending on the portion of the fruit analyzed, however, the contents of phenolic compounds and ash were not affected. The sampling date showed a great influence on the chemical composition, the greatest differences observed in the samples harvested in the month of November autumn, with respect to the remaining summer months. Discriminant analysis allowed differentiate samples chayota according to the accession and sampling date, so it is a very useful tool for the characterization of these samples.
ISSN:0004-0622
2309-5806