CHARACTERIZATION OF CARAMBOLA AND YELLOW PASSION-FRUIT ESSENCES PRODUCED BY A THERMALLY ACCELERATED SHORT-TIME EVAPORATION CITRUS EVAPORATOR

被引:0
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作者
NAGY, S [1 ]
BARROS, S [1 ]
CHEN, CS [1 ]
机构
[1] UNIV FLORIDA,CTR AGR RES & EDUC,CTR CITRUS RES & EDUC,LAKE ALFRED,FL 33850
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中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Juices from carambola and yellow passion fruit were concentrated to 62 degrees Brix and 44-46 degrees Brix, respectively, using a 3-effect, 4-stage pilot-plant TASTE citrus evaporator. Juice essences were recovered during the concentrating process by use of an essence recovery system. Carambola essence possessed an unripe apple-like or apricot-libe aroma. Examination by gas chromatography-mass spectrometry revealed ethyl acetate, trans-2-hexenal, cis-3-hexenol, trans-2-hexenol, n-hexanol and several minor alcohols, esters, and terpenes. Yellow passion fruit essence revealed 41 identifiable components. Esters were present in abundance as well as high levels of alcohols. Aliphatic C-1-C-8 alcohols (linear, secondary, unsaturated, iso- and anteiso-branched) and terpinyl alcohols (linalool, terpinen-4-ol, a-terpineol, nerol geraniol) were noted. The potential use of these flavor fractions in tropical beverage formulations appears promising.
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页码:48 / 58
页数:11
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