TY - JOUR
T1 - A Study on the Biodiversity of Pigmented Andean Potatoes: Nutritional Profile and Phenolic Composition
T2 - Nutritional profile and phenolic composition
AU - Bellumori, Maria
AU - Silva, Nancy A.Chasquibol
AU - Vilca, Laida
AU - Andrenelli, Luisa
AU - Cecchi, Lorenzo
AU - Innocenti, Marzia
AU - Balli, Diletta
AU - Mulinacci, Nadia
N1 - Funding Information:
Funding: This research was part of the project 020-2015-PNIA/UPMSI/IE “Microencapsulation of Sacha inchi (Plukenetia volubilis and Plukenetia huayllabambana) oils and antioxidants of the Peruvian biodiversity. Contribution for the development of functional foods containing omega 3 to prevent non-communicable diseases” funded by the National Program of Agricultural Innovation (PNIA), the Ministry of Agriculture and Irrigation—Peru, the World Bank, and the Lima University—Peru.
Publisher Copyright:
© 2020 by the authors.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The characterization of six varieties of native Andean potatoes with a wide biodiversity in tuber shape, flesh, and skin color was performed, through the determination of their proximate composition, mineral content, and phenolic profile. Minerals concentration revealed significant genotypic variation. Potassium was the most abundant element in all varieties, ranging from 7272.9 to 13,059.9 µg/g and from 12,418 to 17,388.6 µg/g dried weight for the flesh and skin samples, respectively. Iron content was relevant, ranging from 20.5 to 39.9 µg/g and from 112.2 to 288.8 µg/g dried weight in flesh and skin samples, respectively. Phenolic compounds were consistently higher in the skin than in the flesh. The total content varied greatly from 19.5 to 2015.3 µg/g and from 1592.3 to 14807.3 µg/g dried weight for flesh and skin tissues, respectively. 5-caffeoylquinic acid was 74% of the total phenolic acids. Different pattern of anthocyanins was found, depending on the color of the variety; the red genotypes contained predominantly pelargonidin derivatives, while the purple samples had petunidin as a major anthocyanidin. This study increases the knowledge of the composition of the local Andean varieties (which are only scarcely studied so far), helping to enhance these genotypes and the conservation of biodiversity.
AB - The characterization of six varieties of native Andean potatoes with a wide biodiversity in tuber shape, flesh, and skin color was performed, through the determination of their proximate composition, mineral content, and phenolic profile. Minerals concentration revealed significant genotypic variation. Potassium was the most abundant element in all varieties, ranging from 7272.9 to 13,059.9 µg/g and from 12,418 to 17,388.6 µg/g dried weight for the flesh and skin samples, respectively. Iron content was relevant, ranging from 20.5 to 39.9 µg/g and from 112.2 to 288.8 µg/g dried weight in flesh and skin samples, respectively. Phenolic compounds were consistently higher in the skin than in the flesh. The total content varied greatly from 19.5 to 2015.3 µg/g and from 1592.3 to 14807.3 µg/g dried weight for flesh and skin tissues, respectively. 5-caffeoylquinic acid was 74% of the total phenolic acids. Different pattern of anthocyanins was found, depending on the color of the variety; the red genotypes contained predominantly pelargonidin derivatives, while the purple samples had petunidin as a major anthocyanidin. This study increases the knowledge of the composition of the local Andean varieties (which are only scarcely studied so far), helping to enhance these genotypes and the conservation of biodiversity.
KW - Anthocyanins
KW - HPLC-DAD-MS analysis
KW - Minerals
KW - Neochlorogenic acid
KW - Phenolic compounds
KW - Proximate composition
UR - https://hdl.handle.net/20.500.12724/11189
UR - http://www.scopus.com/inward/record.url?scp=85088048019&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/92130644-9823-3fda-a2a7-1ec5dd4cd104/
U2 - 10.3390/molecules25143169
DO - 10.3390/molecules25143169
M3 - Artículo (Contribución a Revista)
C2 - 32664446
AN - SCOPUS:85088048019
SN - 1420-3049
VL - 25
JO - Molecules
JF - Molecules
IS - 14
M1 - 3169
ER -