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Comparative study of polyphenols and caffeine in different coffee varieties affected by the degree of roasting
Abstract
The bioactive composition of coffee, as one of the most popular beverages in the world, has attracted interest as a potential source of beneficial bioactive compounds, especially polyphenols and caffeine. Since the content of these compounds is affected by the processing conditions, the objective of this study was to determine the content of polyphenolic compounds and caffeine in four different coffee varieties: Minas and Cioccolatato (Coffea arabica), and Cherry and Vietnam (Coffea canephora syn. Coffea robusta), roasted by three varying degrees (light, medium and dark). The content of the polyphenolic compounds and the antioxidant capacity of coffees were determined using UV/Vis spectrophotometric methods, while the content of chlorogenic acid derivatives was determined using HPLC analysis. The caffeine content was determined by means of two spectrophotometric methods, as well as HPLC analysis. Additionally, raw caffeine was also obtained by an isolation procedure with chloroform. Cherry coffee, a variety of C. canephora exhibited the highest overall content of total phenols (42.37mg GAE/g), followed by Minas coffee, while Cioccolatato contained the lowest TPC (33.12mg GAE/g). Cherry coffee also exhibited the highest content of individual classes of polyphenols (flavan-3-ols, procyanidins and tannins), while the highest content of chlorogenic acid (CQA) derivatives was determined in Minas and Cioccolatato coffees (C. arabica). The highest content of total and individual polyphenolic compounds was determined in coffees roasted in both light and medium roasting conditions, which was also observed for the content of CQA derivatives and antioxidant capacity of roasted coffees. The highest caffeine content in the coffee samples was determined by employing the HPLC analysis (0.06-2.55%). Light roasted Cherry coffee contained the highest overall content of caffeine among all coffees, which exhibited a decrease with intensified roasting.
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“Our data is in support of the works of Trugo, et al.37 and Hečimović, et al.51, both suggest that higher roasting temperatures decrease the concentration of CGA and caffeine.”
From The Effect of Time, Roasting Temperature, and Grind Size on Caffeine and Chlorogenic Acid Concentrations in Cold Brew Coffee (2017) · cites this paper as [51]
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BackgroundLiu, H., Hua, Y., Zheng, X., Shen, Z., Luo, H., Tao, X., & Wang, Z. (2015) · PLoS ONE · doi:10.1371/journal.pone.0128501 · Cited by 38
“Some phenolic compounds in coffee, such as chlorogenic acid, cafestol and kahweol, can decrease oxidative stress in stomach mucosa induced by helicobacter pylori[33– 36], by which coffee may reduce the risk of gastric non-cardia cancer [37].”
BackgroundThe effect of air flow in coffee roasting for antioxidant activity and total polyphenol content
Kwak, H. S., Ji, S., & Jeong, Y. (2016) · Food Control · doi:10.1016/j.foodcont.2016.06.047 · Cited by 38
Abdelmigid, H. M., Morsi, M. M., Hussien, N. A., Alyamani, A. A., & Sufyani, N. M. A. (2021) · Journal of Nanomaterials · doi:10.1155/2021/2204776 · Cited by 38
“They are considered a rich source of biologically active compounds, especially polyphenols [23].”
BackgroundDong, R., Zhu, M., Long, Y., Yu, Q., Li, C., Xie, J., Huang, Y., & Chen, Y. (2023) · Food Research International · doi:10.1016/j.foodres.2023.112700 · Cited by 37
Effect of roasting degree on the antioxidant activity of different Arabica coffee quality classes
Odžaković, B., Džinić, N., Kukrić, Z., & Grujić, S. (2016) · Acta Scientiarum Polonorum Technologia Alimentaria · doi:10.17306/j.afs.2016.4.39 · Cited by 43
Modified stainless steel microneedle electrode for polyphenolics detection
Dhanjai, D., Mugo, S. M., & Lu, W. (2020) · Analytical and Bioanalytical Chemistry · doi:10.1007/s00216-020-02836-w · Cited by 37
EFSA Panel on Nutrition, N. F. A. F. A. (., Turck, D., Bohn, T., Castenmiller, J. J. M., Henauw, S. D., Hirsch‐Ernst, K. I., Maciuk, A., Mangelsdorf, I., McArdle, H. J., Naska, A., et al. (2022) · EFSA Journal · doi:10.2903/j.efsa.2022.7085 · Cited by 37
Green coffee: economic relevance and a systematic review of the effects on human health
Bosso, H., Barbalho, S. M., Goulart, R. D. Á., & Otoboni, A. M. M. B. (2021) · Critical Reviews in Food Science and Nutrition · doi:10.1080/10408398.2021.1948817 · Cited by 36
Liu, J., Gan, J., Yu, Y., Zhu, S., Yin, L., & Cheng, Y. (2015) · Journal of Functional Foods · doi:10.1016/j.jff.2015.11.041 · Cited by 35
Herawati, D., Giriwono, P. E., Dewi, F. N., Kashiwagi, T., & Andarwulan, N. (2019) · International Journal of Food Properties · doi:10.1080/10942912.2019.1622562 · Cited by 34
“Robusta coffee brew is well recognized for its strong bitter taste, which is a result of the presence of a variety of compounds, such as alkaloids and phenolic groups.([2]) The compositions of the bioactive compounds in Robusta coffee beans are significantly altered by the roasting process.”
BackgroundBabiker, E. E., Atasoy, G., Özcan, M. M., Juhaimi, F. A., Ghafoor, K., Ahmed, I. A. M., & Almusallam, I. A. (2020) · Journal of Food Processing and Preservation · doi:10.1111/jfpp.14495 · Cited by 34
Study on Electronic-Nose-Based Quality Monitoring System for Coffee Under Roasting
Radi, R., Rivai, M., & Purnomo, M. H. (2016) · Journal of Circuits Systems and Computers · doi:10.1142/s0218126616501164 · Cited by 33
Polyphenol contents of green coffee beans from different regions of Ethiopia
Mehari, B., Chandravanshi, B. S., Redi‐Abshiro, M., Combrinck, S., McCrindle, R. I., & Atlabachew, M. (2020) · International Journal of Food Properties · doi:10.1080/10942912.2020.1858866 · Cited by 33
“From the limited literature sources, the data reported by Hecimovic et al.([25]) on the total soluble polyphenol contents of Table 1.”
BackgroundHidayat, M. A., Puspitaningtyas, N., Gani, A. A., & Kuswandi, B. (2017) · Journal of Food Science and Technology · doi:10.1007/s13197-017-2757-7 · Cited by 34
“In addition, Folin–Ciocalteu (FC) spectrophotometric method was widely employed for the determination of TPC in coffee samples (Hečimović et al. 2011; Ibtisam and Karim 2013).”
MethodRusinek, R., Dobrzański, B., Jr., Gawrysiak‐Witulska, M., Siger, A., Żytek, A., Karami, H., Umar, A., Lipa, T., & Gancarz, M. (2023) · International Agrophysics · doi:10.31545/intagr/176300 · Cited by 35
“…only is one of the most important determinants of the aroma, flavor, and volatile organic compounds (VOC) profile in coffee, but also may have a significant impact on the content of active compounds (Hečimović et al. , 2011; Marek et al. , 2020) exhibiting neuroprotective and anticancer properties.”
BackgroundMethodAhmad, I., Pertiwi, A. S., Kembaren, Y., Rahman, A., & Mun'im, A. (2018) · Journal of Applied Pharmaceutical Science · doi:10.7324/japs.2018.8819 · Cited by 36
“25% mg/g) based on the study has been reported by (Hečimović et al., 2011) and (Belguidoum et al.”
ResultInfluential
Metadata
- Authors
- Hečimović, I., Belščak-Cvitanović, A., Horžić, D., & Komes, D.
- Affiliations
- University of Zagreb (HR)
- Corresponding author
- Komes, Draženka
- ORCID
- Komes, Draženka
- Venue
- Food Chemistry
- Publisher
- Elsevier BV
- Published
- 2011-12
- Volume
- 129
- Issue
- 3
- Pages
- 991-1000
- ISSN
- 0308-8146 (ISSN-L)
- OpenAlex
- W1980914868
- Cited by
- 334
- References
- 58
- Citations by year
- 2026: 22 · 2025: 22 · 2024: 18 · 2023: 25 · 2022: 37 · 2021: 36 · 2020: 38 · 2019: 29 · 2018: 24 · 2017: 15 · 2016: 16 · 2015: 11 · 2014: 20 · 2013: 8 · 2012: 13
- FWCI
- 9.60
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Coffee research and impacts
- Health Sciences › Medicine › Biochemistry (medical) › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Food Science › Food Chemistry and Fat Analysis
- Keywords
- coffee, polyphenols, caffeine, coffee roasting, Coffea arabica, Coffea canephora, chlorogenic acid derivatives, antioxidant capacity, flavan-3-ols, procyanidins, tannins, total phenolic content
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