[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 15, Issue 2 (4-2016) ::
IJFS 2016, 15 Back to browse issues page
Effects of different temperature profiles and corn-sago starch ratios on physical properties of extruded tilapia diets
M.S. Kamarudin * , S.D. Ishak , E. Ramezani-Fard , C.R. Saad , Y.A. Yusof
, msalleh@upm.edu.my
Abstract:   (2279 Views)

Sago starch is a locally grown and produced starch resource in Malaysia. In this study, corn starch to sago starch ratios (CS:SS) of 0:20, 5:15, 10:10, 15:5 and 20:0 were included in feed mixture to contain 20% starch and produce five isonitrogenous and isocaloric (30% crude protein and 16.7 kJ/g, respectively) tilapia Oreochromis sp. diets. Diets were preconditioned to contain 40% moisture and extruded using a single-screw extruder at screw speed of 120 rpm using three different temperature profiles (I 60-100-140-180˚C; II 60-100-120-160˚C; and III 60-120-120-180˚C). Effects of these factors were evaluated on physical properties of extrudates including expansion ratio, bulk density, water stability, floatability, sinking velocity and durability. From the results, different temperature profiles and CS:SS had significant effects (p<0.05) on expansion ratio and floatability. Sago starch performed as a good binder as it gave higher percentage of water stability and pellet durability. The mixture with 10:10 of corn to sago starch extruded using temperature profile II (60-100-120-160˚C) produced the best extrudates with desirable physical properties.

Keywords: Aquafeed, Corn starch, Extrudates, Pellet physical properties, Sago starch, Tilapia, Temperature profiles
Full-Text [PDF 380 kb]   (1622 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2016/04/27 | Accepted: 2016/04/27 | Published: 2016/04/27
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA code


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Kamarudin M, Ishak S, Ramezani-Fard E, Saad C, Yusof Y. Effects of different temperature profiles and corn-sago starch ratios on physical properties of extruded tilapia diets. IJFS. 2016; 15 (2) :715-726
URL: http://jifro.ir/article-1-2207-en.html


Volume 15, Issue 2 (4-2016) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.05 seconds with 31 queries by YEKTAWEB 3742