| Title: | Identification and aroma impact of norisoprenoids in orange juice |
| Author(s): | Mahattanatawee K; Rouseff R; Valim MF; Naim M; |
| Address: | "Citrus Research and Education Center, Institute of Food and Agricultural Science, University of Florida, 700 Experiment Station Road, Lake Alfred, Fl 33850, USA" |
| ISSN/ISBN: | 0021-8561 (Print) 0021-8561 (Linking) |
| Abstract: | "Four norisoprenoids, alpha-ionone, beta-ionone, beta-cyclocitral, and beta-damascenone, along with their putative carotenoid precursors, were identified in Valencia orange juice using time-intensity GC-O, GC-MS, and photodiode array HPLC. alpha-Ionone and beta-cyclocitral are reported in orange juice for the first time. GC-O aroma peaks were categorized into seven groups with similar sensory qualities: citrus/minty, metallic/mushroom/geranium, roasted/cooked/meaty/spice, fatty/soapy/green, sulfury/solventy/medicine, floral, and sweet fruity. The four norisoprenoids contributed approximately 8% of the total aroma intensity and 78% of the total floral aroma category. The putative carotenoid norisoprenoid precursors, alpha- and beta-carotene, alpha- and beta-cryptoxanthin, and neoxanthin, were identified in the same orange juice using photodiode array HPLC retention times and spectral characteristics" |
| Keywords: | "Beverages/*analysis Carotenoids/analysis Chromatography, Gas Chromatography, High Pressure Liquid Citrus sinensis/*chemistry Fruit/*chemistry Gas Chromatography-Mass Spectrometry Norisoprenoids/*analysis Odorants/*analysis;" |
| Notes: | "MedlineMahattanatawee, Kanjana Rouseff, Russell Valim, M Filomena Naim, Michael eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2005/01/20 J Agric Food Chem. 2005 Jan 26; 53(2):393-7. doi: 10.1021/jf049012k" |
