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Antioxidant compounds and antioxidant activity in "early potatoes".
J Agric Food Chem. 2008 Jun 11; 56(11):4154-63.JA

Abstract

The antioxidant content and the antioxidant capacity of both hydrophilic and lipophilic antioxidant extracts from four "early potato" cultivars, grown in two different locations (Racale and Monteroni), were examined. There was a considerable variation in carotenoid content and weak differences in the ascorbic acid concentration of the examined cultivars of "early potato" and between the harvested locations. An increase in both methanol/water (8:2 v/v) and phosphate buffer soluble (PBS) free phenols (70%) and bound phenols (28%) in the extracts from the cultivars grown at Racale site was found and discussed. Examination of individual phenols revealed that chlorogenic acid and catechin were the major phenols present in potato tuber extracts; a moderate amount of caffeic acid and ferulic acid was also detected. The total equivalent antioxidant capacity (TEAC) was higher in the Racale extracts and a highly positive linear relationship (R (2) = 0.8193) between TEAC values and total phenolic content was observed. The oxyradical scavenging capacity (TOSC) of methanol/water and PBS extracts of peel and whole potatoes against the reactive oxygen species (ROS) peroxyl radicals, peroxynitrite, and hydroxyl radicals was also analyzed. A highly significant linear correlation (R (2) = 0.9613) between total antioxidant capacity (as a sum of peroxyl radicals + peroxynitrite) and total phenol content of methanol/water extracts was established. Moreover, proliferation of human mammalian cancer (MCF-7) cells was significantly inhibited in a dose-dependent manner after exposure to potato extracts. These data can be useful for "early potato" tuber characterization and suggest that the "early potato" has a potential as a dietary source of antioxidants.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Leo L
Consiglio Nazionale delle Ricerche, Istituto di Scienze delle Produzioni Alimentari, Via Monteroni, 73100 Lecce, Italy.
Leone A
No affiliation info available
Longo C
No affiliation info available
Lombardi DA
No affiliation info available
Raimo F
No affiliation info available
Zacheo G
No affiliation info available

MeSH

AntioxidantsAscorbic AcidCarotenoidsCatechinCell DivisionCell Line, TumorCell SurvivalChlorogenic AcidHumansPlant TubersSolanum tuberosumSpecies Specificity

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18476702

Citation

Leo, Lucia, et al. "Antioxidant Compounds and Antioxidant Activity in "early Potatoes"." Journal of Agricultural and Food Chemistry, vol. 56, no. 11, 2008, pp. 4154-63.
Leo L, Leone A, Longo C, et al. Antioxidant compounds and antioxidant activity in "early potatoes". J Agric Food Chem. 2008;56(11):4154-63.
Leo, L., Leone, A., Longo, C., Lombardi, D. A., Raimo, F., & Zacheo, G. (2008). Antioxidant compounds and antioxidant activity in "early potatoes". Journal of Agricultural and Food Chemistry, 56(11), 4154-63. https://doi.org/10.1021/jf073322w
Leo L, et al. Antioxidant Compounds and Antioxidant Activity in "early Potatoes". J Agric Food Chem. 2008 Jun 11;56(11):4154-63. PubMed PMID: 18476702.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant compounds and antioxidant activity in "early potatoes". AU - Leo,Lucia, AU - Leone,Antonella, AU - Longo,Cristiano, AU - Lombardi,Domenico Antonio, AU - Raimo,Francesco, AU - Zacheo,Giuseppe, Y1 - 2008/05/14/ PY - 2008/5/15/pubmed PY - 2008/7/31/medline PY - 2008/5/15/entrez SP - 4154 EP - 63 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 56 IS - 11 N2 - The antioxidant content and the antioxidant capacity of both hydrophilic and lipophilic antioxidant extracts from four "early potato" cultivars, grown in two different locations (Racale and Monteroni), were examined. There was a considerable variation in carotenoid content and weak differences in the ascorbic acid concentration of the examined cultivars of "early potato" and between the harvested locations. An increase in both methanol/water (8:2 v/v) and phosphate buffer soluble (PBS) free phenols (70%) and bound phenols (28%) in the extracts from the cultivars grown at Racale site was found and discussed. Examination of individual phenols revealed that chlorogenic acid and catechin were the major phenols present in potato tuber extracts; a moderate amount of caffeic acid and ferulic acid was also detected. The total equivalent antioxidant capacity (TEAC) was higher in the Racale extracts and a highly positive linear relationship (R (2) = 0.8193) between TEAC values and total phenolic content was observed. The oxyradical scavenging capacity (TOSC) of methanol/water and PBS extracts of peel and whole potatoes against the reactive oxygen species (ROS) peroxyl radicals, peroxynitrite, and hydroxyl radicals was also analyzed. A highly significant linear correlation (R (2) = 0.9613) between total antioxidant capacity (as a sum of peroxyl radicals + peroxynitrite) and total phenol content of methanol/water extracts was established. Moreover, proliferation of human mammalian cancer (MCF-7) cells was significantly inhibited in a dose-dependent manner after exposure to potato extracts. These data can be useful for "early potato" tuber characterization and suggest that the "early potato" has a potential as a dietary source of antioxidants. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/18476702/Antioxidant_compounds_and_antioxidant_activity_in_"early_potatoes"_ L2 - https://doi.org/10.1021/jf073322w DB - PRIME DP - Unbound Medicine ER -