Colorimetric Quantification of Dopamine as a Bioactive Compound in Banana Peel Extracts: A Sustainable Approach to Food Waste Valorization
Doretta Cuffaro, Enrico Crispino, Elisa Nuti, Vincenzo Calderone, Pasquale Palladino, Maria Minunni · 2026
Read Colorimetric Quantification of Dopamine as a Bioactive Compound in Banana Peel Extracts: A Sustainable Approach to Food Waste Valorization by Doretta Cuffaro, Enrico Crispino, Elisa Nuti, Vincenzo Calderone, Pasquale Palladino, Maria Minunni (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13325377.txt.
Description
Doretta Cuffaro and colleagues devise a color test for dopamine in banana peel waste in a 2026 study. Banana peel is rich in dopamine, and measuring it cheaply could turn food waste into a valued resource.
In a magnesium and ammonium buffer at pH 9.4, dopamine forms a purple-blue pigment that absorbs strongly at 595 nm. Plate readings gave 5000 micrograms of dopamine equivalent per gram of dry peel, close to the 5700 from a chromatography check. The test stayed linear with a detection limit of 1.8 micrograms per mL. It runs at tiny scale with almost no sample prep. Farms and processors could screen waste streams quickly with it.
Catalog record
| CREATOR | Doretta Cuffaro, Enrico Crispino, Elisa Nuti, Vincenzo Calderone, Pasquale Palladino, Maria Minunni |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 42353 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |