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The effect of mixing time and mixing sequence during processing on the physicochemical and sensory properties of keropok lekor


Citation

Murad, Najwa Shamila and Ismail, Mohamad Afifi and Mahmud @ Ab Rashid, Nor-Khaizura and Mohammad Rashedi, Ismail-Fitry (2017) The effect of mixing time and mixing sequence during processing on the physicochemical and sensory properties of keropok lekor. Journal of Science and Technology, 9 (4). 88 - 95. ISSN 2229-8460; ESSN: 2600-7924

Abstract

The common practice of mixing in keropok lekor processing is carried out continuously to produce a homogenize batter with no specific time and sequence established yet. The goal of the work was to study the effect of different mixing time and sequence (intermittent and continuous) against the physicochemical and sensory properties of keropok lekor. The keropok lekor batter was mixed for 6, 12 or 18 min non-stop for the continuous mixing, while the intermittent mixing was carried out for 6 min (2 min mix and 2 min break), 12 min (4 min mix and 2 min break), and 18 min (6 min mix and 2 min break). The intermittent mixing for 6 min was the best method among all the treatments, where the results for the moisture content (56.60±2.20), protein content (10.23±1.21), water holding capacity (83.33±11.02), linear expansion (5.86±2.32), cooking yield (107.15±0.60), lightness, redness and yellowness (colour), hardness, cohesiveness, springiness and chewiness (texture profile analysis) and sensory evaluation scores were equivalent (p>0.05) or better (p<0.05) than the continuous mixing or longer time of treatments. This indicates that shorter time of mixing (6 min) with intermittent mixing sequence is sufficient to produce a good quality and homogenized dough of keropok lekor.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Publisher: Penerbit UTHM
Keywords: Food technology; Mixing time; Mixing sequence; Continuous mixing; Intermittent mixing; Keropok lekor
Depositing User: Mas Norain Hashim
Date Deposited: 27 Aug 2018 04:13
Last Modified: 27 Aug 2018 04:13
URI: http://psasir.upm.edu.my/id/eprint/63431
Statistic Details: View Download Statistic

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