Related Experiment Video
Updated: Apr 27, 2026

Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
Published on: April 22, 2022
Phytochemical, sensory attributes and aroma stability of dense phase carbon dioxide processed Hibiscus sabdariffa
Milena M Ramírez-Rodrigues1, Maria L Plaza1, Alberto Azeredo1
1Food Science and Human Nutrition Dept., University of Florida, PO Box 110370, Gainesville, FL 32611, USA.
Abstract:
The effect of dense phase carbon dioxide (DPCD) processing (34.5 MPa, 8% CO₂, 6.5 min, and 40 °C) on phytochemical, sensory and aroma compounds of hibiscus beverage was compared to a conventional thermal process (HTST) (75 °C for 15 s) and a control (untreated beverage) during refrigerated storage (4 °C). The overall likeability of the hibiscus beverage for all treatments was not affected by storage up to week 5. DPCD process retained more aroma volatiles as compared to HTST. Aroma profiles in the beverages were mainly composed of alcohols and aldehydes with 1-octen-3-ol, decanal, octanal, 1-hexanol, and nonanal as the compounds with the highest relative percentage peak areas. A loss of only 9% anthocyanins was observed for the DPCD processed hibiscus beverage. Phytochemical profiles in the hibiscus beverage included caffeoylquinic acids, anthocyanins, and flavonols. No major changes in total phenolics and antioxidant capacity occurred during the 14 weeks of storage.
More Related Videos
Related Concept Videos
Drug Product Stability
Microbes in the Production of Fermented Foods
Loss of Carboxy Group as CO2: Decarboxylation of Malonic Acid Derivatives
Microbes in Food Production
Loss of Carboxy Group as CO2: Decarboxylation of β-Ketoacids

