Heat effect on rheology of light- and dark-colored honey

被引:68
作者
Abu-Jdayil, B
Ghzawi, AAM
Al-Malah, KIM
Zaitoun, S
机构
[1] Jordan Univ Sci & Technol, Dept Chem Engn, Irbid 22110, Jordan
[2] Jordan Univ Sci & Technol, Dept Plant Prod, Irbid 22110, Jordan
关键词
rheology; light honey; dark honey; melissopalynology; heat treatment;
D O I
10.1016/S0260-8774(01)00034-6
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effect of temperature and time of constant temperature heating (t(CTH)) on the rheological properties of light and dark types of honey was examined. Honey samples were heated up to 40 degreesC, 60 degreesC, 80 degreesC or 94 degreesC, and hold for 5, 10 or 20 min, and their viscosities were then measured either immediately at the heating temperature or after being cooled overnight, where measurements were carried out at 25 degreesC and 35 degreesC as a function of the shear rate. The types of honey used were identified via assessing the source of the nectar using pollen analysis (Melissopalynology). It was found that both honey types behave like a Newtonian fluid regardless of the conditions of heating. The time of heating required to reach the desired ultimate temperature correlates with the water content of the fresh, untreated sample. A light-colored, low water-content, heat-treated honey showed a change in viscosity only at higher heating temperatures when compared with the fresh untreated control sample. On the other hand, a dark-colored, heat-treated honey showed a change in viscosity at all levels of heating temperature. In general, the viscosity of a heat-treated honey increases with increasing ultimate heating temperature and tCTH. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:33 / 38
页数:6
相关论文
共 26 条
[21]   Changes in the properties of light-irradiated wood with heat treatment Part 1. Effect of treatment conditions on the change in color [J].
Mitsui, K ;
Takada, H ;
Sugiyama, M ;
Hasegawa, R .
HOLZFORSCHUNG, 2001, 55 (06) :601-605
[23]   Effect of heat treatment temperature on the performance of nano-TiO2 coating in protecting 316L stainless steel against corrosion under UV illumination and dark conditions [J].
Sahnesarayi, Mohammad Karimi ;
Sarpoolaky, Hossein ;
Rastegari, Saeed .
SURFACE & COATINGS TECHNOLOGY, 2014, 258 :861-870
[24]   Effect of light weight reinforcement and heat treatment process parameters on morphological and wear aspects of hypoeutectic Al-Si based composites-a critical review [J].
Nithesh, K. ;
Gowrishankar, M. C. ;
Nayak, Rajesh ;
Sharma, Sathyashankara .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 15 :4272-4292
[25]   Heat treatment effect on polymer light-emitting device based on poly(9,9-dioctylfluorene) during maskless dye-diffusion technique [J].
Tada, Kazuya ;
Onoda, Mitsuyoshi .
IEICE TRANSACTIONS ON ELECTRONICS, 2006, E89C (12) :1775-1776
[26]   Effect of semi-solid forming temperature and heat treatment on mechanical properties and microstructure of Mg-Al-Zn Alloy (AZ91D) for automotive light application [J].
Kamal, M. R. M. ;
Bazilah, N. F. ;
Idris, M. H. ;
Salleh, M. S. ;
Ali, W. F. F. W. .
JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES, 2020, 14 (04) :7319-7327