Antioxidants-rich ice cream containing herbal extracts and fructooligossaccharides: manufacture, functional and sensory properties

Leonardo Augusto Gremski, Ana Letícia Kincheski Coelho, Jânio Sousa Santos, Heitor Daguer, Luciano Molognoni, Leonardo do Prado-Silva, Anderson S. Sant'Ana, Ramon da Silva Rocha, Márcia Cristina da Silva, Adriano Gomes Cruz, Luciana Azevedo, Mariana Araújo Vieira do Carmo, Mingchun Wen, Liang Zhang, Daniel Granato

Research output: Contribution to journalArticlepeer-review

Abstract

This work aimed to optimize an aqueous extract rich in phenolic compounds and potential functional properties made of Ilex paraguariensis, Melissa officinalis, and Cymbopogon citratus. The lyophilized extract was used for the development of an ice cream. Total phenolics, FRAP, DPPH, Folin-Ciocalteu's reducing capacity, and total reducing capacity of different combinations of herbal extracts were tested and modeled using response surface methodology. Simultaneous optimisation was employed to maximize the bioactive compounds in the extract and the lyophilized optimum combination was added to ice cream. The lyophilized extract contained quercetin-3-rutinoside, hesperidin, isoquercetin, caffeic acid, and 5,7-dihydroxyflavone. The optimised extract, which showed antihypertensive, antidiabetic, and antioxidant activity using in vitro protocols, increased total phenolics and antioxidant activity in comparison to the control ice cream. The ice cream presented a sensory acceptance index of 83%. After 72 days of storage (−18 °C), total phenolics and antioxidant activity significantly decreased.

Original languageEnglish
Article number125098
Pages (from-to)125098
JournalFood Chemistry
Volume298
DOIs
Publication statusPublished - 15 Nov 2019
Externally publishedYes

Keywords

  • Cymbopogon citratus
  • Dairy foods
  • Desirability function
  • Flavonoids
  • Ilex paraguariensis
  • Melissa officinalis
  • Response surface methodology

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