Home|Journals Follow on Twitter| Subscribe to List

Directory for Medical Articles

Open Access


J. Anim. Prod. Adv.. 2012; 2(7): 335-344

The Effect of Pregelatinized Potato Starch on the Functional Properties of an Extruded Aquafeed

Jesus Rodriguez-Miranda, Efren Delgado-Licon, Betsabe Hernández-Santos, Damian Reyes-Jaquez, Ernesto Aguilar-Palazuelos, Hiram Medrano-Roldan, Ricardo Omar Navarro-Cortez, Javier Castro-Rosas, Carlos Alberto Gomez-Aldapa.

The most important physical properties affecting quality in aquaculture feeds are floatability, hardness, stability and sinking velocity. An evaluation was done of the effect of different concentrations (25, 50, 75 and 100 g Kg-1) of native potato starch (PSt) and pregelatinized potato starch (PPSt) on functional properties in an extruded aquafeed. Maximum bulk density values were observed in the PPSt treatments, with a high value of 1.06 g cm-3 in the 25 g Kg-1 PPSt treatment. Hardness increased from 1.63 to 5.11 N in the PPSt treatments. Sinking velocity also increased, from 5.84 to 7.47 cm s-1, while water solubility index values decreased from 12.8 to 7.9%. Use of PPSt did not affect (P > 0.05) the expansion index, the water absorption index (g Kg-1) or color (L*, a* and b*). Addition of PPSt improved aquafeed pellet hardness without affecting the expansion index, preventing pellet disintegration and lixiviation of hydrosoluble nutrients. Of the tested concentrations, the optimum PPSt level was 100 g Kg-1 in fish meal (60%) based formulas.

Key words: Aquafeed, potato starch, functional properties.

Share this Article

Journal of Apitherapy


ScopeMed Home
Follow ScopeMed on Twitter
Author Tools
eJPort Journal Hosting
About ScopeMed
License Information
Terms & Conditions
Privacy Policy
Suggest a Journal
Publisher Login
Contact Us

The articles in Scopemed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright © ScopeMed® Information Services.
Scopemed Buttons