Drying Curves and Colour Changes of Cassia Alata Leaves at Different Temperatures

Autor: Abdul Razak Norawanis, Shaari Abdul Razak, Jolkili Maizura, Leng Lee Yit
Jazyk: English<br />French
Rok vydání: 2016
Předmět:
Zdroj: MATEC Web of Conferences, Vol 78, p 01020 (2016)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/20167801020
Popis: Cassia alata plant has been commonly used as medicinal herbs for treating fungal infection such as ringworm and eczema. Nevertheless, a few studies on drying characteristics have focused on C. alata. This work aims to investigate the drying characteristics of C. alata leaves at different temperatures. Moreover, the effects of different drying temperatures on colour qualities of C. alata leaves had been determined. The leaves were dried at different temperatures (40, 50, 60, 70, 80 and 90 °C) using a laboratory oven. Dried and fresh leaves were analyzed for the moisture content and colour analysis. The EMC of C. alata leaves decreased from 0.30 to 0.10 g water/dry matter as the temperature increased from 40 °C to 90 °C. The colour qualities of C. alata leaves were lower with increasing drying temperature.
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