Water activity and water content in Slovenian honeys

被引:49
作者
Abramovic, Helena [1 ]
Jamnik, Moica [1 ]
Burkan, Lina [1 ]
Kac, Milica [1 ]
机构
[1] Univ Ljubljana, Biotech Fac, SI-1111 Ljubljana, Slovenia
关键词
honey; water activity; water content;
D O I
10.1016/j.foodcont.2007.11.008
中图分类号
TS2 [食品工业];
学科分类号
0832 [食品科学与工程];
摘要
In the present study water activity (a(w)) and water content (w) in 150 samples of Slovenian honeys were determined. The water content in honeydew honeys ranged from 13.4% to 18.0% and in flower honeys the water content was between 14.0% and 18.6%. The water activity in honeydew honeys varied from 0.483 to 0.591, and in flower honeys the water activity was in the range from 0.479 to 0.557. A statistically significant linear correlation between a(w) and the water content of honeys was found. In honeydew honeys the water activity at the same water content was higher than in flower honeys. The change of physical state from crystallized to liquid has been found to influence the water activity. Crystallized samples showed a higher water activity compared to the corresponding value for the same honeys after liquefaction. The difference in water activity between liquefied and crystallized honeys is higher in flower honeys than in honeydew honeys. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1086 / 1090
页数:5
相关论文
共 16 条
[1]
[Anonymous], 1999, OFF METH AN, V16th
[2]
Beckh G, 2004, DEUT LEBENSM-RUNDSCH, V100, P14
[3]
BUGNER E, 1992, J AOAC INT, V75, P443
[4]
*CAMP SCI LTD, 1988, CX 1 WAT ACT SYST IN
[5]
Cavia MM, 2004, J FOOD SCI, V69, pC368, DOI 10.1111/j.1365-2621.2004.tb10699.x
[6]
The correlation between water activity and % moisture in honey: Fundamental aspects and application to Argentine honeys [J].
Chirife, J ;
Zamora, MC ;
Motto, A .
JOURNAL OF FOOD ENGINEERING, 2006, 72 (03) :287-292
[7]
Influence of type and state of crystallisation on the water activity of honey [J].
Gleiter, RA ;
Horn, H ;
Isengard, HD .
FOOD CHEMISTRY, 2006, 96 (03) :441-445
[8]
Classification of Spanish unifloral honeys by discriminant analysis of electrical conductivity, color, water content, sugars, and pH [J].
Mateo, R ;
Bosch-Reig, F .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1998, 46 (02) :393-400
[9]
Quality evaluation of Portuguese honey [J].
Mendes, E ;
Proença, EB ;
Ferreira, IMPLVO ;
Ferreira, MA .
CARBOHYDRATE POLYMERS, 1998, 37 (03) :219-223
[10]
ROBINSON RA, 1959, ELECTROLYTE SOLUTION, P510