【正文】
during processing樣品Tea samples酯類Esters酮類 Ketones醇類 Alcohols萜烯類Terpenoids素坯 Tea dhool 177。Note: Data were the relative contents expressed by the ratio of the area of volatile pounds to the area of Mark。, 9b225。, 6a224。圖1 加工過程各茶樣香氣成分總離子流圖譜Fig. 1 Total ion chromatogram of aroma pounds in samples during processing表2 蠟梅花茶加工過程中各茶樣香氣成分相對含量Table 2 Relative contents of aroma pounds in tea samples during processing of chimonanthus tea化合物Compounds保留時間Retention time(min)素坯Teadhool一窨Firstly scented二窨Secondly scented三窨Thirdly scented提花Raising fragrance乙苯 Methyl benzeneTr苯乙烯 StyreneND3蒈烯 3CareneND苯甲醇 Benzyl alcoholTr3苯基戊烷 Benzene, (1ethylpropyl)ND芳樟醇 LinaloolTr別羅勒烯 AlloocimeneND2氨基苯甲酸酯3,7二甲基1,6辛二烯3醇酯1,6Octadien3ol, 3,7dimethyl,2aminobenzoate6,9十五烷二烯1醇 (Z)6,(Z)9Pentadecadien1olNDTr2甲基十氫化萘 cisDecalin, 2synmethylND2戊基2環(huán)戊烯1酮 2Cyclopenten1one, 2pentylND乙酸芐酯 Benzyl acetateND萘 Naphthalene水楊酸甲酯 Methyl salicylateNDo癸基羥胺 Hydroxylamine, Odecyl2異丙叉5甲基己烯醛2Isopropylidene5methylhex4enal3(2,6,6三甲基1環(huán)己烯基)2丙烯1醇2Propen1ol,3(2,6,6trimethyl1cyclohexen1yl)NDα乙基苯甲醇Benzene methanol, 224。經過方差分析,加工進程對酯類和醇類香氣物質相對含量的影響達極顯著水平(P),對酮類化合物影響不明顯,對萜烯類化合物影響達顯著水平(P),多重比較結果見表3,隨著加工進程,酯類、醇類化合物相對含量呈先增后將趨勢,二窨時達到最高;提花后,萜烯類化合物相對含量顯著高于其它茶樣(P)。從5個樣品中共檢測到42個香氣物質,其中素坯、一窨、二窨、三窨和提花茶樣香氣物質個數分別為233442,素坯香氣成分明顯少于其他茶樣。提花茶樣總分最高,二窨茶樣略高于三窨。 數據分析用SPSS軟件進行方差分析,對影響顯著的指標進行LSD(Least significant difference)多重比較,顯著性水平設為P。質