Elsevier

Food Chemistry

Volume 309, 30 March 2020, 125794
Food Chemistry

Effect of high hydrostatic pressure and drying methods on phenolic compounds profile of jabuticaba (Myrciaria jaboticaba) peel and seed

https://doi.org/10.1016/j.foodchem.2019.125794Get rights and content
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Highlights

  • Jabuticaba showed phenolic acids, flavonoids, ellagitannins and proanthocyanidins.

  • Pressurization did not increase polyphenols contents of jabuticaba peel and seed.

  • Freeze-drying and oven drying at 75 °C led to similar total polyphenols contents.

  • Oven-drying at 75 °C led to higher contents of ellagitannins and gallic acid.

  • Freeze-drying led to higher contents of anthocyanins.

Abstract

Jabuticaba is a Brazilian berry rich in phenolic compounds (PC), which are mainly concentrated in its peel and seed (JPS), fractions that are not usually consumed. Thus, to develop a powder with potential functional properties, we investigated the effect of pressurization and dehydration methods on the chemical composition of JPS, with emphasis on PC. JPS showed a very diverse PC profile, including phenolic acids, flavonoids, ellagitannins and proanthocyanidins. Contrary to our hypothesis, pressurization was ineffective in increasing total PC contents of JPS. Freeze-drying and oven-drying at 75 °C yielded powders with similar total PC contents, but with distinct profile, the former richer in anthocyanins and the latter in ellagitannins. Considering that both dehydration methods produced a jabuticaba powder rich in PC, and that freeze-drying is a higher cost method, the choice between these drying methods depends on the purpose of the final product.

Chemical compounds studied in this article

Cyanidin-3-O-glucoside (PubChem CID441667)
Delphinidin-3-O-glucoside (PubChem CID 443650)
Vescalagin/Castalagin (PubChem CID 168165)
Ellagic acid (PubChem CID 5281855)
Gallic acid (PubChem CID 370)
Myricetin-3-O-rhamnoside (PubChem CID 5352000)
Quercetin-3-O-rutinoside (PubChem CID 5280805)
Valoneic acid dilactone (PubChem CID 10151874)
Catechin (PubChem CID 9064)
Gallocatechin (PubChem CID 65084)

Keywords

Anthocyanins
Ellagitannins
Freeze-drying
Oven-drying
Polyphenoloxidase
Proanthocyanidins

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