MODELING PRE-TREATMENTS EFFECT ON DRYING KINETICS OF GARLIC (ALLIUM SATIVUM L ) SLICES IN A CONVECTIVE HOT AIR DRYER

摘要：

The study investigated the effect of three pre-treatments of citric-acid (CA), potassium-metabisulphite (KMS), and ethylenediamine-Tetraacetic acid (EDTA) on the drying kinetics and quality of garlic slices in a convective hot-air dryer at temperatures of 45, 50 and 55 ℃.The allicin content of the dried garlic slices compared with the fresh increased non-linearly with increase in temperature from 8.6 to 23.5 μg/mL, 13.3 to 22.4 μg/mL, 11.9 to 23.4 μg/mL, and 12.3 to 24.1 μg/mL for the control, CA, KMS, and EDTA samples respectively.The drying characteristics were evaluated against three mathematical models.The control dried garlic slices were best described by the Midilli et al model whilst the pretreated samples followed the Henderson and Pabis model.The KMS pretreated samples showed greatest brightness and least redness in colour at 50℃ and 45 respectively compared with the fresh, whereas the EDTA pretreated samples were yellower at 45 ℃.

关键词： Garlic slices Drying models Pre-treatments Allicin content Colour.

作者: E.E.Abano H.Ma W.Qu E.Teye

作者单位: School of Food and Biological Engineering,Jiangsu University,301 Xuefu Road,Zhenjiang 212013,China A School of Food and Biological Engineering,Jiangsu University,301 Xuefu Road,Zhenjiang 212013,China J School of Food and Biological Engineering,Jiangsu University,301 Xuefu Road,Zhenjiang 212013,China Agricultural Engineering Department,University of Cape Coast,Cape Coast,Chana

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-12

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）