title: HS-GC-MS volatile compounds recovered in freshly pressed 'Wonderful' cultivar and commercial pomegranate juices.
abstract: Consumption and production of superfruits has been increasing. Highly colored fruits often have bitter and astringent components that may make them undesirable, especially when processed. Many pomegranate volatile reports involved commercial samples, complicated isolation methods, or blending and concentrating that were from arils only, cultivars other than 'Wonderful', or mixed cultivars. Solid phase microextraction (SPME), polydimethylsiloxane stir bar sorptive extraction, and Tenax adsorption were performed with freshly pressed 'Wonderful' juices, commercial juices and concentrates. Using SPME, 36 compounds were isolated in whole pressed 'Wonderful' juices, including 18 of the 21 consensus compounds. In arils-only juices, 41 compounds were isolated by SPME, including 17 of the consensus volatiles. Dramatic variation existed in volatiles recovered in commercial juices and isolation of consensus compounds was sporadic. This article and summary of the literature serves to possibly deliver an improved volatile data set via a rapid method for fresh and partially processed (pressed) pomegranates.
authors.affiliation: United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, Food Processing & Sensory Quality, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124, United States. Electronic address: John.Beaulieu@ars.usda.gov.
authors.forename: John C
authors.initials: JC
authors.lastname: Beaulieu
authors.affiliation: Active Organics, 1097 Yates St, Lewisville, TX 75057, United States.
authors.forename: R E
authors.initials: RE
authors.lastname: Stein-Chisholm
mesh_terms: D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D029561:Lythraceae / Q000737:chemistry*; D052617:Solid Phase Microextraction / Q000379:methods; D055549:Volatile Organic Compounds / Q000737:chemistry*
chemical_list: D055549:Volatile Organic Compounds
keywords: Aroma; Flavor; Gas chromatography; Mass spectrometry; Punica granatum; Solid phase microextraction; Tenax