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. 2022 Apr 26;8(5):e09337.
doi: 10.1016/j.heliyon.2022.e09337. eCollection 2022 May.

Deep-frying purple potato Purple Majesty using sunflower oil: effect on the polyphenols, anthocyanins and antioxidant activity

Raffaele Romano  1 , Alessandra Aiello  1 , Lucia De Luca  1 , Fabiana Pizzolongo  1 , Alessandra Durazzo  2 , Massimo Lucarini  2 , Patricia Severino  3   4   5 , Eliana B Souto  6   7 , Antonello Santini  8
Affiliations

Deep-frying purple potato Purple Majesty using sunflower oil: effect on the polyphenols, anthocyanins and antioxidant activity

Raffaele Romano et al. Heliyon. .

Abstract

The potato is a root vegetable native to the Americas; it consists of the starchy tuber of the plant Solanum tuberosum. There are many varieties, and the flesh can have different colour ranging from yellow to red and purple. Coloured varieties have a denser texture and slightly nuttier, earthier flavour than other potatoes. The desirable quality characteristics of potatoes depends on the intended use, and the acceptability of raw potatoes is determined by size, shape, colour, and the quality of can be evaluated in terms of colour, flavour, and texture. Deep-frying is the century-old and it is among the most common cooking processes, still being used to prepare a variety of food products on both industrial and domestic scales. Frying the potatoes is among the tastiest and appreciated way to cook this vegetable. Purple fleshed potatoes are widely considered one of the best-tasting purple potatoes varieties, they have a nice taste and add colour to a meal. They are a source of beneficial health compounds which makes them interesting as functional food. The anthocyanins present in the Purple Majesty variety are interesting for their health promoting abilities, anti-oxidative activity, and even other health beneficial effects, e.g. anti-influenza virus activity, and anti-stomach cancer activity. The aim of this study has been to assess the effect of deep-frying of purple potato Purple Majesty using sunflower oil on the polyphenols, anthocyanins and to evaluate the antioxidant activity of the cooked matrix compared to the fresh one. The results seem to suggest that the healthy characteristics of this functional food are retained after the cooking by frying.

Keywords: Anthocyanins; Antioxidant activity; Deep-frying; Polyphenols; Purple potato “Purple Majesty”; Sunflower oil.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Image 1
Graphical abstract
Figure 1
Figure 1
Purple Majesty potatoes and pre fried sticks.
Figure 2
Figure 2
Experimental design of purple potato sample preparation.
See this image and copyright information in PMC

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References

    1. Amarowicz R., Carle R., Dongowski G., Durazzo A., Galensa R., Kammerer D., Maiani G., Piskula M.K. Influence of postharvest processing and storage on the content of phenolic acids and flavonoids in foods. Mol. Nutr. Food Res. 2009;53(Suppl 2):S151–S183. - PubMed
    1. Andre C.M., Oufir M., Guignard C., Hoffmann L., Hausman J.F., Evers D., Larondelle Y. Antioxidant profiling of native Andean potato tubers (Solanum tuberosum L.) reveals cultivars with high levels of β-carotene, alpha-tocopherol, chlorogenic acid, and petanin. Agric. Food Chem. 2007;55:10839–10849. - PubMed
    1. Andre C.M., Larondelle Y., Evers D. Dietary antioxidants and oxidative stress from a human and plant perspective: a review. Curr. Nutr. Food Sci. 2010;6(1):2–12.
    1. Bellumoria M., Innocenti M., Michelozzi M., Cerretani L., Mulinacci N. Coloured-fleshed potatoes after boiling: promising sources of known antioxidant compounds. J. Food Compos. Anal. 2017;59:1–7.
    1. Blessington T., Nzaramba M.N., Scheuring D.C., Hale A.L., Reddivari L., Miller J.C. Cooking methods and storage treatments of potato: effects on carotenoids, antioxidant activity, and phenolics. Am. J. Potato Res. 2010;87(6):479–491.

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