20.500.12556/RUL-132751 Exploring secondary metabolites in coffee and tea food wastes Coffee and tea are popular beverages worldwide, and therefore generate large amounts of waste. Here we describe the caffeine content and phenolic profile in three types of teas and coffees, and how they vary with two successive extractions. Although the first extraction was far more efficient than the second, green tea also showed a high content of flavanols in the second extraction, as did mate tea for phenolic acids. Black tea could also be a good option since caffeine content was highest in both extractions. Water also proved to be the most effective solvent in almost all cases, which represent a major benefit for urban horticulture, as it is a simple extraction method from an easily accessible source. Coffee and tea residues are a rich source of caffeine and phenolic compounds that could potentially be used as alternatives to conventional pesticides. caffeine phenolic compounds solvents second extraction kava čaj kemična sestava sekundarni metaboliti fenolne spojine odpadek bioaktivne snovi true false true Angleški jezik Slovenski jezik Članek v reviji 2021-11-02 11:59:50 2021-11-02 11:59:52 2023-05-16 03:32:22 0000-00-00 00:00:00 2021 0 0 14 str. iss. 11, art. 443 Vol. 7 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 543 2311-7524 10.3390/horticulturae7110443 83087363 RAZ_Grohar_Mariana_Cecilia_2021.pdf RAZ_Grohar_Mariana_Cecilia_2021.pdf 1 770930035A4DBD9B806AB2A0BE276CF4 c4deebae2bc442e6bc8cdeb346fe4b8197dd389baa4ef5e91b5326a19e85e5ea a887f4c4-3bcc-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150432 https://www.mdpi.com/2311-7524/7/11/443 1 f704855e-3bcb-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150431 Biotehniška fakulteta 0 0 0