Introduction: Coffee is one of the most widely consumed beverage in the world. Its popularity stems from organoleptic, psychoactive properties and health-promoting compounds content. Thanks to caffeine, it has stimulant properties, warming effects, and also positively affects the digestive system. In turn, frequently occurring polyphenols are potentially protective agents against chronic neurodegenerative diseases, cancer and diabetes. They have been associated with antioxidant effects and support the cardiovascular system.
Objective: The aim of the study was to compare the coffee beverages obtained from ground beans of Arabica species from different countries in terms of content of compounds with health- and psychoactive properties. In the study medium roasted coffee beans from Brazil, India, Costa Rica and Guatemala were used. All the samples were ground to obtain three degrees of fragmentation (fine, medium, coarse). Steaming ground beans were conducted using the same conditions. In the obtained beverages the content of caffeine and polyphenols were examined, and their effect on the antioxidant potential of the beverages.
Results: It was found that beverages prepared from coffees of different origins differed in terms of caffeine and polyphenols content. The least of the compounds was in beverages with Guatemala coffee, while beverages with India and Brazil coffee contained more of them. The fineness of beans also affects the composition of the beverages. Generally, greater fragmentation increased the extraction of caffeine and polyphenols. The antioxidant potential of the beverages depended more on the country of origin of the coffee than fineness of beans. The beverages from Guatemala and Costa Rica coffee were characterised by greater antioxidant potential.

coffee Arabica; country of origin; fineness of beans; caffeine; polyphenols; antioxidant activity

Angeloni G., Guerrini L., Masella P., Bellumori M., Daluiso S., Parenti A., Innocenti M. What kind of coffee do you drink? An investigation on effects of eight different extraction methods, Food Research International. 2019; 116: 1327-1335.

AOAC (Association of Official Analytical Chemists), Official Methods of Analysis, 12th edition, Washington DC, 1974, 9, 10.

Ashihara H. Crozier A. Caffeine: a well known but little mentioned compound in plant science, TRENDS in Plant Science. 2001; 6(9): 407- 413.

Bojarowicz H., Przygoda M. Kofeina. Cz. I. Powszechność stosowania kofeiny oraz jej działanie na organism, Problemy Higieny i Epidemiologii. 2012; 93(1): 8-13.

Burdyn G. Niepowtarzalny aromat kawy, Przegląd Piekarski i Cukierniczy. 2007; 2: 56-57.

Ciaramelli C., Palmioli A., Airoldi C. Coffee variety, origin and extraction procedure: Implications for coffee beneficial effects on human health, Food Chemistry. 2019; 278: 47-55.

Daniel A., Workneh M. Determination of total phenolic content and antioxidant activities of five different brands of Ethiopian coffee, International Journal of Food and Nutrition Research. 2017; 1(2):1-10.

De Marco I. Riemma S. Iannone R. Life cycle assessment of supercritical CO2 extraction of caffeine from coffee beans, The Journal of Supercritical Fluids. 2018; 133: 393-400.

Farah A., Donangelo C.M. Phenolic compounds in coffee, Brazilian Journal of Plant Physiology. 2006; 18(1): 23-36.

Fărcaş A.C., Socaci S.A., Bocăniciu J., Pop A., Tofană M., Muste S. Evaluation of biofunctional compounds content from brewed coffee, Bulletin UASVM Food Science and Technology. 2014; 71(2): 114-118.

Gonzalez de Mejia E., Vinicio Ramirez-Mares M. Impact of caffeine and coffee on our health, Trends in Endocrinology and Metabolism. 2014; 25(10): 489-492.

Hecimović I., Belšcak-Cvitanović A., Horzić D., Komes D. Comparative study of polyphenols and caffeine in different coffee varieties affected by the degree of roasting, Food Chemistry. 2011; 129: 991-1000.

Jeon J.S., Kim H.T., Jeong I.H., Hong S.R., Och M.S., Park K.H., Shim J.H., Abd El-Aty A.M. Determination of chlorogenic acids and caffeine in homemade brewed coffee prepared under various conditions, J Chromatogr B Analyt Technol Biomed Life Sci. 2017; 1064: 115-123.

Kociuba A. Rynek kawy, Przegląd Gastronomiczny. 2012; 9: 3.

Lopez-Galilea I., De Pena M.P., Cid C., Correlation of Selected Constituents with the Total Antioxidant Capacity of Coffee Beverages: Influence of the Brewing Procedure, Journal of Agricultural and Food Chemistry. 2007; 55:6110-6117.

Ludwig I.A., Sanchez L., Caemmerer B., Kroh L.W., De Peña M.P., Cid C. Extraction of coffee antioxidants: Impact of brewing time and method, Food Research International. 2012; 48(1): 57-64.

Moure A., Franco D., Sineiro J., Dominguez H., Núñez M.J., Lema J.M. Antioxidant activity of extracts from Gevuina avellana and Rosa rubiginosa defatted seeds, Food Research International. 2001; 34: 103-109.

Ocieczek A. Wpływ stopnia rozdrobnienia kawy palonej na jej właściwości higroskopijne, Inżynieria i Aparatura Chemiczna. 2013; 52: 78-80.

Paradkar M.M, Irudayaraj J. Rapid determination of caffeine content in soft drinks using FTIR–ATR spectroscopy, Food Chemistry. 2002; 78: 261-266.

Polska Norma PN-ISO 6668:1998 Kawa zielona - Przygotowanie próbek do analizy sensorycznej.

Szymanowska K., Wołosiak R. Wpływ prażenia kawy na wybrane parametry jej jakości, Aparatura badawcza i dydaktyczna. 2014; 1:77-83.

Verster J.C., Koenig J. Caffeine intake and its sources: A review of national representative studies, Critical Reviews in Food Science and Nutrition. 2018; 58(8): 1250-1259.

Watanabe T., Arai Y., Mitsui Y., Kusaura T., Okawa W., Kajihara Y., Saito I. The blood pressure-lowering effect and safety of chlorogenic acid from green coffee bean extract in essential hypertension, Clinical and Experimental Hypertension. 2006; 28(5): 439-449.

Wierzejska R. Caffeine – common ingredient in a diet and its influence on human health, Roczniki Państwowego Zakładu Higieny. 2012; 63(2): 141-147.

Wolska, J., Janda, K., Jakubczyk, K., Szymkowiak M., Chlubek D., Gutowska I. Levels of antioxidant activity and fluoride content in coffee infusions of arabica, robusta and green coffee beans in according to their brewing methods, Biological Trace Element Research. 2017; 179: 327-333.

Zawadzka-Ben Dor R., Kawa rozgrzewa ciało i duszę, Przegląd Piekarski i Cukierniczy. 2008; 11: 94-95.

Żukiewicz-Sobczak W., Krasowska E., Sobczak P., Horoch A., Wojtyła A., Piątek J. Wpływ spożycia kawy na organizm człowieka, Medycyna Ogólna i Nauki o Zdrowiu. 2012; 18(1): 71-76.