Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability

Pulsed-UV is an emerging innovation in non-thermal processing and is scarcely explored. This study introduces a combined treatment of microwave and pulsed-UV to reduce the microbial load in yellow alkaline noodle (YAN), a popular staple food among South East Asians that is easily perishable, without...

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Main Authors: Anissa Soraya, Chay, Shyan Yea, Shukri, Radhiah, Mohamad Ghazali, Farinazleen, Muhammad, Kharidah, Mohd Adzahan, Noranizan, Karim, Roselina
Format: Article
Language:English
Published: Springer 2019
Online Access:http://psasir.upm.edu.my/id/eprint/81951/1/Reduction%20of%20microbial%20load%20in%20yellow%20alkaline%20noodle%20using%20optimized%20microwave%20and%20pulsed-UV%20treatment%20to%20improve%20storage%20stability.pdf
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author Anissa Soraya
Chay, Shyan Yea
Shukri, Radhiah
Mohamad Ghazali, Farinazleen
Muhammad, Kharidah
Mohd Adzahan, Noranizan
Karim, Roselina
author_facet Anissa Soraya
Chay, Shyan Yea
Shukri, Radhiah
Mohamad Ghazali, Farinazleen
Muhammad, Kharidah
Mohd Adzahan, Noranizan
Karim, Roselina
author_sort Anissa Soraya
collection UPM
description Pulsed-UV is an emerging innovation in non-thermal processing and is scarcely explored. This study introduces a combined treatment of microwave and pulsed-UV to reduce the microbial load in yellow alkaline noodle (YAN), a popular staple food among South East Asians that is easily perishable, without jeopardising its textural qualities. Results indicated that the combination of 5 s microwave (power = 900 W; frequency = 2450 MHz) and 3.5 J/cm² pulsed-UV significantly reduced aerobic plate count and spore forming bacteria, from 637.5 to 50 CFU/g and 1500 to 100 CFU/g, respectively. In terms of textural properties, even though significant changes were detected in hardness and springiness for treated YAN kept at ambient storage as compared to control, the alterations were not prominent. Based on these observations, it is concluded that a combined treatment of microwave and pulsed-UV successfully improved the shelf life of YAN at ambient storage by 50%, from 1.0 day (control) to 1.5 days (treated sample) and by 140%, from 2.0 to 4.8 weeks at chilled storage. Current study proves the potential of microwave + pulsed-UV, a “green” hurdle treatment, to extend the shelf life of preservative-free YAN without causing major undesirable textural alterations on the noodle.
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spelling upm.eprints-819512021-08-12T10:25:42Z http://psasir.upm.edu.my/id/eprint/81951/ Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability Anissa Soraya Chay, Shyan Yea Shukri, Radhiah Mohamad Ghazali, Farinazleen Muhammad, Kharidah Mohd Adzahan, Noranizan Karim, Roselina Pulsed-UV is an emerging innovation in non-thermal processing and is scarcely explored. This study introduces a combined treatment of microwave and pulsed-UV to reduce the microbial load in yellow alkaline noodle (YAN), a popular staple food among South East Asians that is easily perishable, without jeopardising its textural qualities. Results indicated that the combination of 5 s microwave (power = 900 W; frequency = 2450 MHz) and 3.5 J/cm² pulsed-UV significantly reduced aerobic plate count and spore forming bacteria, from 637.5 to 50 CFU/g and 1500 to 100 CFU/g, respectively. In terms of textural properties, even though significant changes were detected in hardness and springiness for treated YAN kept at ambient storage as compared to control, the alterations were not prominent. Based on these observations, it is concluded that a combined treatment of microwave and pulsed-UV successfully improved the shelf life of YAN at ambient storage by 50%, from 1.0 day (control) to 1.5 days (treated sample) and by 140%, from 2.0 to 4.8 weeks at chilled storage. Current study proves the potential of microwave + pulsed-UV, a “green” hurdle treatment, to extend the shelf life of preservative-free YAN without causing major undesirable textural alterations on the noodle. Springer 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81951/1/Reduction%20of%20microbial%20load%20in%20yellow%20alkaline%20noodle%20using%20optimized%20microwave%20and%20pulsed-UV%20treatment%20to%20improve%20storage%20stability.pdf Anissa Soraya and Chay, Shyan Yea and Shukri, Radhiah and Mohamad Ghazali, Farinazleen and Muhammad, Kharidah and Mohd Adzahan, Noranizan and Karim, Roselina (2019) Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability. Journal of Food Science & Technology, 56 (4). pp. 1801-1810. ISSN 0022-1155; ESSN: 0975-8402 https://link.springer.com/article/10.1007/s13197-019-03624-w 10.1007/s13197-019-03624-w
spellingShingle Anissa Soraya
Chay, Shyan Yea
Shukri, Radhiah
Mohamad Ghazali, Farinazleen
Muhammad, Kharidah
Mohd Adzahan, Noranizan
Karim, Roselina
Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title_full Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title_fullStr Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title_full_unstemmed Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title_short Reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed-UV treatment to improve storage stability
title_sort reduction of microbial load in yellow alkaline noodle using optimized microwave and pulsed uv treatment to improve storage stability
url http://psasir.upm.edu.my/id/eprint/81951/1/Reduction%20of%20microbial%20load%20in%20yellow%20alkaline%20noodle%20using%20optimized%20microwave%20and%20pulsed-UV%20treatment%20to%20improve%20storage%20stability.pdf
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