蜂蜜的静态水蒸气吸附特性

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY
K. Arslan, M. Turhan
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引用次数: 0

摘要

摘要研究了松蜜(PH)和柑桔蜜(CH)在20、30和40°C温度下的静态吸附性能。在所有温度下,当水分活度(aw)>0.7时,在蜂蜜表面观察到酵母的形成。在相同条件下,可见酵母(YF)在PH中比在CH中更早形成,这是因为其具有较高的PH值和较低的单糖含量的特征。温度对YF的影响不显著(p>0.05)。蜂蜜表现出“J”形的吸附等温线(SI)。它们的Si在aw0.7时分别表现出解吸和吸附,解吸部分几乎是线性的。Aw=0.7出现在YF的存在和不存在之间以及解吸和吸附之间的边界。蜂蜜的SI受温度的影响不显著(p>0.05)。PH的SI显著低于CH(p≤0.05),这是由于其单糖含量较低的特点。GAB方程与蜂蜜的SI拟合良好。吸附热与平衡含水量(EMC)揭示了PH和CH的Si中单层、多层和松散结合的自由水区域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Static Water Vapor Sorption Properties of Honey
Abstract Static sorption properties of pine honey (PH) and citrus honey (CH) were studied at 20, 30 and 40°C. Yeast formation was observed on the surface of honeys at water activity (aw)>0.7 at all temperatures. Visible yeast formation (YF) took place earlier in PH than in CH under the same conditions due to its characteristic higher pH and lower monosacchride content. The temperature was insignificantly effective on YF (p>0.05). The honeys exhibited a sorption isotherm (SI) in the shape of a “J”. Their SIs exhibited desorption and adsorption at aw<0.7 and aw>0.7, respectively and the desorption part was almost linear. Aw=0.7 emerged as a border between the absence and presence of YF and between the desorption and adsorption. The SIs of honeys were insignificantly affected by temperature (p>0.05). PH had a significantly lower SI than that of CH (p≤0.05) due to its characteristic lower monosacchride content. GAB equation exhibited a good fit to the honeys' SIs. Sorption heat vs equilibrium moisture content (EMC) revealed monolayer, multilayer and loosely bound free water regions in the SIs of PH and CH.
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
9
审稿时长
>12 weeks
期刊介绍: The Journal of Apicultural Science is a scientific, English-language journal that publishes both original research articles and review papers covering all aspects of the life of bees (superfamily Apoidea) and broadly defined apiculture. The main subject areas include: -bee biology- bee genetics- bee breeding- pathology and toxicology- pollination and bee botany- bee products- management, technologies, and economy- solitary bees and bumblebees
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