Physicochemical properties of powdered protein hydrolysate from Yellowstripe scad (Selaroides leptolepis) fish

Noor Azmi Shaharuddin, . and Zamzahaila Mohd Zin, . and Mohamad Khairi Zainol, . and Hau E. H., . and Zuraidah Nasution, . Physicochemical properties of powdered protein hydrolysate from Yellowstripe scad (Selaroides leptolepis) fish. pp. 2553-2559. ISSN 2231-7546

Yellowstripe scad fish (YSF) or Selaroides leptolepis belongs to the small pelagic group that is abundantly found in South China Sea and is categorised as low value fishes. This study is designed to explore the physicochemical properties of YSF protein hydrolysate extracted using sodium phosphate buffer followed by 0.5-2.0 of Alcalase at a series of hydrolysis time (1 hr and 2 hr). The properties of freeze and spray dried protein hydrolysate were evaluated for yield degree of hydrolysis protein content microstructure and water holding capacity. Results showed that prolonged hydrolysis time exhibited increasing yield (0.6-1.6 for spray drying and 12-16 for freeze drying) and high degree of hydrolysis (80-95). Protein content recovered from hydrolysis process is within 20-29. Microstructure of freeze dried YSF protein hydrolysate had collapsed-building structure (irregular shapes with edges) while spray dried had small and spherical structure. Freeze dried protein hydrolysates were significantly (p0.05) higher than spray dried hydrolysates in water holding capacity.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/25%20(06)%202018/(42).p...

Abstract

Yellowstripe scad fish (YSF) or Selaroides leptolepis belongs to the small pelagic group that is abundantly found in South China Sea and is categorised as low value fishes. This study is designed to explore the physicochemical properties of YSF protein hydrolysate extracted using sodium phosphate buffer followed by 0.5-2.0 of Alcalase at a series of hydrolysis time (1 hr and 2 hr). The properties of freeze and spray dried protein hydrolysate were evaluated for yield degree of hydrolysis protein content microstructure and water holding capacity. Results showed that prolonged hydrolysis time exhibited increasing yield (0.6-1.6 for spray drying and 12-16 for freeze drying) and high degree of hydrolysis (80-95). Protein content recovered from hydrolysis process is within 20-29. Microstructure of freeze dried YSF protein hydrolysate had collapsed-building structure (irregular shapes with edges) while spray dried had small and spherical structure. Freeze dried protein hydrolysates were significantly (p0.05) higher than spray dried hydrolysates in water holding capacity.

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Item Type:	Article
AGROVOC Term:	Selaroides leptolepis
AGROVOC Term:	Physicochemical properties
AGROVOC Term:	Scad
AGROVOC Term:	Protein hydrolysate
AGROVOC Term:	Pelagic regions
AGROVOC Term:	Hydrolysis
AGROVOC Term:	Protein content
AGROVOC Term:	Microstructure (morphology)
AGROVOC Term:	Water holding capacity
AGROVOC Term:	Drying
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24953

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