Abstract
Volatile flavor compositions of headspace from flowers (petal, stamen, and pistil) and leaves (stem and leaf) of lotus (Nelumbo nucifera Gaertner), which is an aquatic perennial plant and belong to the Nelumbonaceae family, were investigated through solid-phase microextraction method using polydimethylsiloxane-divinylbenzene fiber. The headspaces was directly transferred to a gas chromatography-mass spectrometry. Forty-one volatile flavor constituents were detected in the headspace of fresh lotus petals, and n-butylidene dihydrophthalide (15.51 %) was the most abundant component. Fifty-six volatile flavor constituents were detected in the headspace of lotus stamina, and aldehydes and esters (undecanal: 12.37 %, neryl acetate: 12.3 %) were predominant components. Forty-two volatile flavor constituents were detected in the headspace of fresh lotus pistils, and ligustilide (12.7 %) was the most abundant component. Phthalides were predominant in the headspace of lotus stems and leaves. Isobutylidene phthalide and tetradecane were the most abundant components of lotus stems and leaves, respectively. The content of phthalides was higher in the headspace of petals, pistils, stems, and leaves than those of stamina, while esters were the predominant compounds of lotus stamina.
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