| Title: | Juice volatile composition differences between Valencia orange and its mutant Rohde Red Valencia are associated with carotenoid profile differences |
| Author(s): | Wei X; Song M; Chen C; Tong H; Liang G; Gmitter FG; |
| Address: | "Southwest University, College of Food Science, 2 Tiansheng Road, Beibei District, Chongqing 400715, China; University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA. Department of Food Science & Technology, Oregon State University, Wiegand Hall, Corvallis, OR 97331, USA. United States Department of Agriculture, Agricultural Research Service, Southeastern Fruit and Tree Nut Research Laboratory, 21 Dunbar Road, Byron, GA 31008, USA. Southwest University, College of Food Science, 2 Tiansheng Road, Beibei District, Chongqing 400715, China. Southwest University, College of Horticulture and Landscape, 2 Tiansheng Road, Beibei District, Chongqing 400715, China. University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA. Electronic address: fgmitter@ufl.edu" |
| DOI: | 10.1016/j.foodchem.2017.10.066 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "A targeted approach using HS-SPME-GC-MS was performed to investigate volatile compounds of ordinary Valencia (VAL) and its more deeply colored mutant Rohde Red Valencia orange (RRV) at different developmental stages. Fifty-six volatile components classified into six chemical groups were quantified. The individual volatile compounds in each group were significantly influenced by the genotype and harvest date. Cluster analysis suggested two principal clusters. Cluster I included fruits of VAL and RRV harvested in July, September, and November and was characterized by the 2-ethyl-1-hexanol acetate and linalool chemotype; cluster II included fruits harvested in January and March, with the valencene/beta-myrcene chemotype. Principal component analysis confirmed that fruits of both cultivars harvested at different dates possessed a unique aroma active profile, especially, the odor-active volatile-norisoprenoids degraded from C(40) carotenoid were significantly higher in RRV than in VAL at full maturity. These results could provide information for further study of the flavor metabolism pathways in the two closely related cultivars" |
| Keywords: | Acyclic Monoterpenes Carotenoids/*analysis/genetics Citrus sinensis/*chemistry/*genetics Cluster Analysis Fruit/chemistry/genetics Fruit and Vegetable Juices/*analysis Gas Chromatography-Mass Spectrometry/methods Monoterpenes/analysis Mutation Norisopreno; |
| Notes: | "MedlineWei, Xu Song, Mei Chen, Chunxian Tong, Huarong Liang, Guolu Gmitter, Fred G Jr eng England 2017/12/31 Food Chem. 2018 Apr 15; 245:223-232. doi: 10.1016/j.foodchem.2017.10.066. Epub 2017 Oct 12" |
