SciELO - Scientific Electronic Library Online

 
vol.23 issue2Nutritional Composition and Digestibility of Seeds, Cake Meal and Skin of Two Species of Sacha Inchi (Plukenetia volubilis y P. huayllabambana)Review on the impact of elevated CO2 concentrations on fruit species in the face of climate change author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Ciencia y Tecnología Agropecuaria

Print version ISSN 0122-8706On-line version ISSN 2500-5308

Abstract

ORMAZA-ZAPATA, Angela María; DIAZ-ARANGO, Félix Octavio  and  ROJANO, Benjamín Alberto. Analysis of Gravity-Filtration Preparation Methods’ Antioxidant Content, Capacity, and Coffee Beverage Acceptance. Cienc. Tecnol. Agropecuaria [online]. 2022, vol.23, n.2, e2438.  Epub Apr 31, 2022. ISSN 0122-8706.  https://doi.org/10.21930/rcta.vol23_num2_art:2438.

Most gravity-filtration coffee preparation methods constitute good alternatives for obtaining coffee with varying acidity, bitterness, and bodies. The present study identifies the composition of compounds with antioxidant capacities and cup profiles for coffee beverages prepared using eight gravity-filtration methods. UV-visible spectrophotometry and high- performance liquid chromatography quantified antioxidants, hydroxycinnamic acids, and antioxidant activity. A qualitative descriptive analysis was performed using an expert panel to establish the sensory quality. The methods that yielded the highest total phenol and flavonoid concentrations were Chemex, Siphon, and Silvertone. The Silvertone, Siphon, and Neapolitan methods had the most condensed tannin content. The maximum hydroxycinnamic acid content was found with the Siphon and Neapolitan methods. Antioxidant capacity was evaluated by the ABTS (antioxidant capacity of the cationic radical 2,2-Azino-bis-3-ethylbenzthiazoline-6-sulfonic acid), ORAC (Oxygen Radical Absorption Capacity), and FRAP (Ferric Reducing Antioxidant Power) methods and found to be the highest with the Silvertone, Siphon, and Neapolitan methods. The preparation methods with the highest sensorial scores were Silvertone and Chemex, while the lowest sensorial acceptance level was found with the Cloth filter method. Beverages made with the Kalita and Drip methods showed the lowest antioxidant compound expressions. The most predominant hydroxycinnamic acid was chlorogenic acid in the eight preparations studied. We thus recommend that coffee be consumed following preparation with the Silvertone, Siphon, or Neapolitan methods to increase antioxidant consumption in the diet. Should the consumer prefer bitter notes, these may be found with the Silvertone preparation method; otherwise, one may enjoy acidic notes in coffee beverages with the Siphon and Neapolitan methods.

Keywords : Flavour; functionality; organoleptic análisis; quality; sensation.

        · abstract in Spanish     · text in English     · English ( pdf )