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Influence of spray-drying, freeze-drying and vacuum-drying on physicochemical and functional properties of gelatin from Labeo rohita swim bladder.

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Relation http://ir.cftri.com/13903/
https://doi.org/10.1016/j.ijbiomac.2018.10.015
 
Title Influence of spray-drying, freeze-drying and vacuum-drying on
physicochemical and functional properties of gelatin from Labeo rohita
swim bladder.
 
Creator Balaji Wamanrao, Kanwate
Rajashekhar, V. Ballari
Tanaji, G. Kudre
 
Subject 14 Physical properties
Fish
02 Drying and Dehydration
 
Description Influence of different drying method on yield, physicochemical and functional properties of gelatin from rohu
(Labeo rohita) swim bladder were investigated. Freeze-drying presented the highest gelatin yield (54.51 g/100 g,
dry weight basis), followed by vacuum-drying (48.95 g/100 g) and spray-drying (41.76 g/100 g), respectively
(P b 0.05). All gelatin samples showed glycine as the major amino acid followed by proline, glutamic
acid, alanine, arginine and hydroxyproline, respectively. Freeze-dried gelatin (FDG) and spray-dried gelatin
(SDG) showed α (α1 and α2), β-chains and γ-chain as the predominant components, whereas an absence
of β- and γ-chains found in vacuum-dried gelatin (VDG). FTIR spectra revealed that the loss of the
triple-helix was found in all gelatins which indicated the conversion of collagen to soluble gelatin. FDG
and SDG had the highest surface hydrophobicity, protein solubility, emulsifying, foaming and gelation
property than VDG (P b 0.05). Moreover, SDG showed slightly higher surface hydrophobicity, protein solubility,
emulsifying and foaming properties as compared to FDG (P b 0.05). However, no significant difference
was found in gelation properties of FDG and SDG (P N 0.05). Therefore, freeze-drying or spray-drying
could be an appropriate drying method for preparation of gelatin from rohu swim bladder with better
functionalities.
 
Date 2019
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/13903/1/International%20Journal%20of%20Biological%20Macromolecules%20121%20%282019%29%20135%E2%80%93141.pdf
Balaji Wamanrao, Kanwate and Rajashekhar, V. Ballari and Tanaji, G. Kudre (2019) Influence of spray-drying, freeze-drying and vacuum-drying on physicochemical and functional properties of gelatin from Labeo rohita swim bladder. International Journal of Biological Macromolecules, 121. pp. 135-141. ISSN 0141-8130