Physicochemical characterization and bioactive compounds of stalk from hot fruits of Capsicum annuum L.

Autor: Jana Simonovska, Mojca Škerget, Željko Knez, Marija Srbinoska, Zoran Kavrakovski, Anita Grozdanov, Vesna Rafajlovska
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Macedonian Journal of Chemistry and Chemical Engineering, Vol 35, Iss 2, Pp 199-208 (2016)
Druh dokumentu: article
ISSN: 1857-5552
1857-5625
DOI: 10.20450/mjcce.2016.944
Popis: In stalk of red hot pepper (Capsicum annuum L.) with 0.25 mm, 0.5 mm and 1.0 mm particle sizes, the quantities of nutritive and volatile compounds, bioactive capsaicin and carotenoids were determined. Furthermore, the stalk was characterized using TGA, DSC and FTIR spectroscopy. The influence of the particle size on the content of proteins, ash and cellulose is insignificant. Compared to 0.5 and 1.0 mm, stalk with 0.25 mm particle size was darker with a deeper yellow-brown color, and richer in microelements. Among the quantified volatile compounds, 6 were esters, 2 terpenoids, and 1 acid. The highest quantity of extract rich fats was obtained from stalk with 0.25 mm particle size by using ethanol, which is more efficient for capsaicin extraction, while n-hexane is efficient for extraction of carotenoids. Stalk with 0.25 mm particle size was characterized with a higher degradation temperature and residual weight.
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