processes Article Determining the Effect of Pre-Treatment in Rice Noodle Quality Subjected to Dehydration through Hierarchical Scoring Muhammad Heikal Ismail 1,* , Hii Ching Lik 2 , Winny Routray 3 and Meng Wai Woo 4 1 Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia 2 Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Malaysia;
[email protected] 3 Department of Food Process Engineering, National Institute of Technology, Rourkela 769008, India;
[email protected] 4 Department of Chemical and Materials Engineering, Faculty of Engineering, University of Auckland, Auckland 1010, New Zealand;
[email protected] * Correspondence:
[email protected]; Tel.: +60-3-9769-4676 Abstract: Fresh rice noodle was usually coated in a large amount of oil to avoid stickiness and extend the shelf life. Pre-treatment has been applied to reduce the quantity of oil in rice noodle. In this research, the pre-treatment and temperature effect on the rice noodle quality subjected to hot air drying, heat pump drying, and freeze drying was investigated. Texture, color, oil content, and starch gelatinization of the dried noodle was further evaluated. Results revealed that there were significant differences (p < 0.05%) in texture, color, oil content, and starch gelatinization in rice noodle subjected to pre-treatment. Furthermore, the texture, color, oil content, and starch gelatinization demonstrated a significant difference (p < 0.05%) in freeze drying rather than hot air drying and Citation: Ismail, M.H.; Lik, H.C.; heat pump drying.