Characteristic odor components of Citrus reticulata Blanco (ponkan) cold-pressed oil.
Citrus reticulata Blanco (ponkan) cold-pressed oil and its oxygenated fraction were studied by analytical (GC and GC/MS) and sensory analyses. The monoterpene group was predominant, accounting for more than 89.6% (w/w), of which limonene was the most abundant (80.3%). Among the oxygenated compounds, octanal and decanal were the major ones among 12 aldehydes accounting for >1.5%; six alcohols were identified with a total concentration of >0.7%, while oxides, ketones and esters did not quantitatively or qualitatively contribute to the oil. Sniffing the ponkan cold-pressed oil and its oxygenated fraction demonstrated that octanal and decanal were the characteristic odor components of ponkan. Reconstruction of the ponkan aroma model and its sensory evaluation by a hedonic test were performed, showing that, in addition to octanal and decanal which played important roles, (R)-(+)-limonene contributed to the aroma model as a background component, making the aroma model very similar to that of the original.
Department of Bioresources Science, Faculty of Agriculture, Kochi University. B-200 Monobe, Nankoku, Kochi 783-8502, Japan. sawamura@cc.kochi-u.ac.jp
Masayoshi
M
Sawamura
Nguyen
N
Thi Minh Tu
Yuji
Y
Onishi
Eriko
E
Ogawa
Hyang-Sook
HS
Choi
D000438:Alcohols / Q000737:chemistry; D000447:Aldehydes / Q000737:chemistry*; D002957:Citrus / Q000737:chemistry; D053138:Cyclohexenes; D004952:Esters / Q000737:chemistry; D007659:Ketones / Q000737:chemistry; D000077222:Limonene; D013058:Mass Spectrometry; D039821:Monoterpenes / Q000737:chemistry*; D009812:Odorants; D009821:Oils / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry*
D000438:Alcohols; D000447:Aldehydes; D053138:Cyclohexenes; D004952:Esters; D007659:Ketones; D039821:Monoterpenes; D009821:Oils; D010087:Oxides; D013729:Terpenes; D000077222:Limonene