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

Autor: Anita Grozdanov, Zoran Kavrakovski, Mojca Škerget, Vesna Rafajlovska, Jana Simonovska, Željko Knez, Marija Srbinoska
Rok vydání: 2016
Předmět:
Zdroj: Macedonian Journal of Chemistry and Chemical Engineering, Vol 35, Iss 2, Pp 199-208 (2016)
ISSN: 1857-5625
1857-5552
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.
Databáze: OpenAIRE