Abstract
BACKGROUND/OBJECTIVES: (excelsa) cultivated in the Comoros islands represent understudied coffee varieties grown in a unique volcanic terroir. Despite their agricultural significance and potential bioactive value, no comprehensive biochemical or nutritional characterization of these Comorian coffees had previously been conducted. This study therefore aimed to provide the first integrated biochemical and nutritional characterization of both varieties and to evaluate the influence of the islands' specific edaphoclimatic conditions on their chemical composition. METHODS: An integrated analytical approach was employed, combining UV-Vis spectrophotometry, HPLC, ionomics, and FTIR-ATR spectroscopy to quantify polyphenols, flavonoids, caffeine, soluble sugars, antioxidant activity, mineral profiles, and macromolecular composition of green coffee beans from both species. RESULTS: ), total soluble sugars (60.47 ± 3.37 mg GE/g), and antioxidant activity (64.97 ± 6.25 mM Trolox eq/g). Conversely, excelsa demonstrated a distinct mineral profile, with significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper. FTIR spectroscopy confirmed distinct vibrational fingerprints between the two species, particularly in lipid and carbohydrate signatures. CONCLUSIONS: These findings position Comorian robusta as a potent source of antioxidants and stimulants, while excelsa offers a nutritionally balanced profile with nutraceutical potential, providing a scientific basis for valorizing both varieties as high-value niche products and contributing to the preservation of coffee agro-biodiversity.
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Claims 6
Claim · model-written summary
Excelsa had significantly higher magnesium concentration.
- Taxon
- Coffea liberica var. dewevrei
Coffea liberica var. dewevreit0 - Outcome
- magnesiume0
- Direction
- highere0
- Comparator
- Coffea canephorat0
- Setting
- Comoriant0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excelsa demonstrated a distinct mineral profile, with significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper”
t0“Comorian Coffea canephora and Coffea liberica var. dewevrei”
Claim · model-written summary
Excelsa had significantly higher calcium concentration.
- Taxon
- Coffea liberica var. dewevreiCoffea liberica var. dewevreit0
- Outcome
- calciume0
- Direction
- highere0
- Comparator
- Coffea canephorat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper”
t0“Coffea canephora and Coffea liberica var. dewevrei”
Claim · model-written summary
Excelsa had significantly higher sodium concentration.
- Taxon
- Coffea liberica var. dewevreiCoffea liberica var. dewevreit0
- Outcome
- sodiume0
- Direction
- highere0
- Comparator
- Coffea canephorat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper”
t0“Coffea canephora and Coffea liberica var. dewevrei”
Claim · model-written summary
Excelsa had significantly higher zinc concentration.
- Taxon
- Coffea liberica var. dewevreiCoffea liberica var. dewevreit0
- Outcome
- zince0
- Direction
- highere0
- Comparator
- Coffea canephorat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper”
t0“Coffea canephora and Coffea liberica var. dewevrei”
Claim · model-written summary
Excelsa had significantly higher copper concentration.
- Taxon
- Coffea liberica var. dewevreiCoffea liberica var. dewevreit0
- Outcome
- coppere0
- Direction
- highere0
- Comparator
- Coffea canephorat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher concentrations of magnesium, calcium, sodium, zinc, and copper”
t0“Coffea canephora and Coffea liberica var. dewevrei”
Claim · model-written summary
The species had distinct lipid and carbohydrate FTIR signatures.
- Taxon
- Coffea canephora and Coffea liberica var. dewevrei
Coffea canephoraCoffea liberica var. dewevreit0 - Outcome
- distinct vibrational fingerprintse0
- Qualifier
- lipid and carbohydrate signaturese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FTIR spectroscopy confirmed distinct vibrational fingerprints between the two species, particularly in lipid and carbohydrate signatures”
t0“Coffea canephora and Coffea liberica var. dewevrei”