Prethodno priopćenje
https://doi.org/10.17113/ftb.53.04.15.4159
Comparison of Enzymatic and Ultrasonic Extraction of Albumin from Defatted Pumpkin (Cucurbita pepo) Seed Powder
Gia Loi Tu
; Department of Food Technology, Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, District 10, 70 000 Ho Chi Minh City, Vietnam
Thi Hoang Nga Bui
; Department of Food Technology, Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, District 10, 70 000 Ho Chi Minh City, Vietnam
Thi Thu Tra Tran
; Department of Food Technology, Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, District 10, 70 000 Ho Chi Minh City, Vietnam
Nu Minh Nguyet Ton
; Department of Food Technology, Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, District 10, 70 000 Ho Chi Minh City, Vietnam
Van Viet Man Le
orcid.org/0000-0003-3284-207X
; Department of Food Technology, Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, District 10, 70 000 Ho Chi Minh City, Vietnam
Sažetak
In this study, ultrasound- and enzyme-assisted extractions of albumin (water-soluble protein group) from defatted pumpkin (Cucurbita pepo) seed powder were compared. Both advanced extraction techniques strongly increased the albumin yield in comparison with conventional extraction. The extraction rate was two times faster in the ultrasonic extraction than in the enzymatic extraction. However, the maximum albumin yield was 16 % higher when using enzymatic extraction. Functional properties of the pumpkin seed albumin concentrates obtained using the enzymatic, ultrasonic and conventional methods were then evaluated. Use of hydrolase for degradation of cell wall of the plant material did not change the functional properties of the albumin concentrate in comparison with the conventional extraction. The ultrasonic extraction enhanced water-holding, oil-holding and emulsifying capacities of the pumpkin seed albumin concentrate, but slightly reduced the foaming capacity, and emulsion and foam stability.
Ključne riječi
albumin; Cucurbita pepo; extraction; functional properties; hydrolase; ultrasound
Hrčak ID:
150333
URI
Datum izdavanja:
28.12.2015.
Posjeta: 1.932 *