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Effect of microwave and conventional drying process on the drying kinetics and physico-chemical quality of brown shrimp (Metapenaeus dobsonii): Advanced Microwave drying on the quality of shrimp

Indian Agricultural Research Journals

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Title Effect of microwave and conventional drying process on the drying kinetics and physico-chemical quality of brown shrimp (Metapenaeus dobsonii): Advanced Microwave drying on the quality of shrimp
 
Creator Sumit Kumar Verma
P. Ganesan
Pankaj Kishor
Remya Sasikala
C. O. Mohan
Pandurengan Padmavathy
Nagarajan Muralidharan
Bindu Jagannath
 
Subject Shrimp
conventional drying
microwave drying
drying kinetics
colour
texture
 
Description The aim of this study was to compare the drying kinetics, proximate composition, instrumental texture and colour profiling of dried shrimp (Metapenaeus dobsonii) under open sun drying (30±2°C), solar with electricity backup drying (60°C) and advanced microwave (1000W/60°C) drying techniques. Initially, the drying rate was faster and inversely related to the progress of time. Upon comparison, it was observed that the drying rate was highest in the microwave drying technique compared to solar with electric backup drying and open sun drying. The protein (15.76 to 71.12%), fat (0.39% to 5.96%) and ash content (0.54 to 3.10%) showed an increase as the drying process progressed. Furthermore, the moisture content of the dried shrimp products was observed to be in the range of 9.9 to 12.5%. The water activity of dried shrimp ranged from 0.63 to 0.69. The energy value of fresh shrimp was 70.43 kcal 100 g-1, which increased to 357 kcal 100 g-1 after drying. The hardness decreased during the drying process, while during storage, it showed an increasing trend. Higher redness and lower yellowness were observed for microwave-dried shrimps compared to other drying techniques, indicating superior quality. The study indicated more efficiency for the microwave drying technique with a higher drying rate and yielded a product with superior quality characteristics in terms of colour and texture.
Keywords: Colour, Conventional drying, Drying kinetics, Microwave drying, Shrimp, Texture
 
Publisher Central Marine Fisheries Research Institute (on behalf of Indian Council of Agricultural
 
Date 2024-06-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJF/article/view/139441
10.21077/ijf.2024.71.2.139441-14
 
Source Indian Journal of Fisheries; Vol. 71 No. 2 (2024)
0970-6011
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJF/article/view/139441/54951
 
Rights Copyright (c) 2024 Indian Journal of Fisheries