Bibliographic citations
Quispe, F., (2023). Estudio de la diversidad de semillas y ácidos grasos de Plukenetia huayllabambana y Plukenetia volubilis (Sacha inchi) de la amazonía peruana [Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/25035
Quispe, F., Estudio de la diversidad de semillas y ácidos grasos de Plukenetia huayllabambana y Plukenetia volubilis (Sacha inchi) de la amazonía peruana []. PE: Pontificia Universidad Católica del Perú; 2023. http://hdl.handle.net/20.500.12404/25035
@mastersthesis{renati/1655617,
title = "Estudio de la diversidad de semillas y ácidos grasos de Plukenetia huayllabambana y Plukenetia volubilis (Sacha inchi) de la amazonía peruana",
author = "Quispe Jacobo, Fredy Enrique",
publisher = "Pontificia Universidad Católica del Perú",
year = "2023"
}
The study of seed and fatty acid diversity of 21 samples collected in the Peruvian Amazonian regions of Amazonas, Huanuco, Junin, Loreto, San Martin, and Ucayali, revealed that both identification and traceability can be performed taking into account morphological characteristics of the seeds, selected physicochemical properties, and fatty acid composition of the crude seed oils. The exploratory analysis of clusters and principal components using seeds of P. huayllabambana and P. volubilis revealed clear differences between the two species. Cluster analysis in P. volubilis identified five groups that represent the diversity of seeds from the regions of Huanuco, Junin, Loreto, San Martin, and Ucayali. Analysis of the physicochemical properties in the 21 crude oils, whose yields were between 29.07- 42.97%, showed according to dendrogram and principal component analysis, five clusters of which one of them belongs exclusively to P. huayllabambana. Significant correlations were found between the altitude of the production area and the yield of crude oil obtained by cold pressing and total fat extraction with solvent. Fatty acid profiles in the 21 crude sacha inchi oils revealed differences in their content of palmitic, stearic, cis-vaccenic, linoleic, linolenic, and eicosenoic acids, total saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, and omega-3/omega-6 ratios. The study identified, based on omega-3/omega-6 ratios, sacha inchi seeds with outstanding omega-3 contents with ratios greater than 1.70 in Amazonas (P. huayllabambana), Huanuco and San Martin (P. volubilis). Intermediate relationships between 1.00 and 1.70 were found for San Martin, Junin, Loreto, and Ucayali, all corresponding to P. volubilis; and ratios of less than 1.00, in the San Martin region (P. volubilis). The dendrogram and principal component analysis identified three clusters for the 11 fatty acid variables evaluated. Cluster and principal component analysis, allowed the assignment of diversity in the 21 crude oils of sacha inchi into five groups, identifying cluster II exclusively as P. huayllabambana from the Cochamal farms of the Amazon region, and the remaining ones to P. volubilis. Analysis of fatty acid composition and associated parameters with the altitude of the area of origin revealed significant correlations with palmitic, cis-vaccenic and linolenic acids, and the omega-3/omega-6 ratios, strongly suggesting that their expression is affected by their geographical origin and the environmental factors present during development and seed production.
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