title: Physicochemical properties and aroma volatile profiles in a diverse collection of California-grown pomegranate (Punica granatum L.) germplasm.
abstract: Colorful antioxidant-rich fruits often convey astringency and sourness that juice consumers may not appreciate. We assessed properties in juices from a collection of California-grown pomegranate from the National Clonal Germplasm Repository. The goal was to evaluate overall differences in germplasm with quality traits classified as sweet, sweet-sour and sour. Previous relationships noted in sweet and sour cultivar attributes were observed. Wonderful generally clustered with sweet-sour and sour cultivars. Sweet low acid cultivars occasionally clustered closely with Wonderful which is hard to rationalize. The dominant compounds were 3-hexenol and 1-hexanol which allowed separation of Kara Gul, Haku-botan and Wonderful. Aldehyde and terpene content can be used to characterize cultivars. The study represents the first data on variation in juice qualities in different sweet, sweet-sour and sour cultivars, grown in California, compared with Wonderful. Data may help the juice industry better select raw juice materials in order to ultimately satisfy consumers.
authors: 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: J C
authors: JC
authors: Beaulieu
authors: 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.
authors: S W
authors: SW
authors: Lloyd
authors: United States Department of Agriculture, Agricultural Research Service, National Clonal Germplasm Repository, Davis, CA 95616, United States. Electronic address: John.Preece@ars.usda.gov.
authors: J E
authors: JE
authors: Preece
authors: United States Department of Agriculture, Agricultural Research Service, National Clonal Germplasm Repository, Davis, CA 95616, United States.
authors: J W
authors: JW
authors: Moersfelder
authors: Active Organics, 1097 Yates St, Lewisville, TX 75057, United States.
authors: R E
authors: RE
authors: Stein-Chisholm
authors: Capellades, Cartago, 30603, Costa Rica. Electronic address: jamaobul@gmail.com.
authors: J M
authors: JM
authors: Obando-Ulloa
mesh_terms: D000447:Aldehydes / Q000032:analysis; D000872:Anthocyanins / Q000032:analysis; D000975:Antioxidants / Q000032:analysis; D002140:California; D055598:Chemical Phenomena; D019343:Citric Acid / Q000032:analysis; D003116:Color; D003258:Consumer Behavior; D005638:Fruit / Q000737:chemistry*; D000441:Hexanols / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D029561:Lythraceae / Q000737:chemistry*; D015999:Multivariate Analysis; D009812:Odorants / Q000032:analysis*; D013649:Taste; D013729:Terpenes / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000447:Aldehydes; D000872:Anthocyanins; D000975:Antioxidants; D000441:Hexanols; D013729:Terpenes; D055549:Volatile Organic Compounds; D019343:Citric Acid; C051918:3-hexen-1-ol; C036260:1-hexanol
keywords: 1-Hexanol; 3-Hexenol; Anthocyanidin; Astringency; Juice; Organic acids; Principal components analysis; SPME; Sensory