27.03.2013 Views

BUKU ABSTRAK - Universiti Putra Malaysia

BUKU ABSTRAK - Universiti Putra Malaysia

BUKU ABSTRAK - Universiti Putra Malaysia

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Mee Fat from Madhuca longifolia Seeds as Raw Material for Halal Alternative Fats<br />

Keywords: Halal alternative, lard, madhuca lingifolia<br />

Dr. Mohammed Nazrim Marikkar<br />

H.M. Ghazali and N.A.M. Yanty<br />

Institute of Products Halal Research, University <strong>Putra</strong> <strong>Malaysia</strong>,<br />

43400 UPM Serdang, Selangor, <strong>Malaysia</strong>.<br />

+603-8941 7344; nazrinmarikkar@yahoo.com<br />

Madhuca longifolia is a large-grown, woody tree distributed in many countries in Asia. Belonging to the<br />

family Sapotaceae, the tree is reported to have several uses in the traditional medicine. The crude oil extracted<br />

from the seeds is known as Mee fat, which is pale yellow in color and remains as a semi-solid under the tropical<br />

temperature conditions. Thermal analysis by differential scanning calorimetry showed that Mee fat had twowidely<br />

separated high and low melting thermal transitions in its cooling profile. This feature would be beneficial<br />

for the effective separation of Mee fat into solid and liquid fractions. Analytical data obtained from the preliminary<br />

investigations indicated that these components would be useful for formulation of halal alternative fats.<br />

Development of Beverage Emulsion Formulation with Desirable Physicochemical<br />

Properties as Function of Emulsion Composition<br />

Dr. Seyed Hamed Mirhosseini<br />

Chin Ping Tan<br />

Faculty of Food Science and Technology, University <strong>Putra</strong> <strong>Malaysia</strong>,<br />

43400 UPM Serdang, Selangor, <strong>Malaysia</strong>.<br />

+603-8946 8390; hamedmi@food.upm.edu.my<br />

The constituents in a food emulsion interact with each other, either physically or chemically, determining<br />

the overall physico-chemical and organoleptic properties of the final product. Thus, the main objective of present<br />

study was to investigate the effect of emulsion components on beverage emulsion properties. In most cases, the<br />

second-order polynomial regression models with no significant (P > 0.05) lack of fit and high adjusted coefficient<br />

of determination (adjusted R2, 0.851-0.996) were significantly fitted to explain the beverage emulsion properties<br />

as function of main emulsion components. The main effect of gum arabic was found to be significant (P < 0.05)<br />

in all response regression models. Orange beverage emulsion containing 222.0g kg?1 gum Arabic, 2.4 g kg?1<br />

xanthangumand 152.7 g kg?1 orange oil was predicted to provide the desirable emulsion properties. The present<br />

study suggests that the concentration of gum Arabic should be considered as a primary critical factor for the<br />

formulation of orange beverage emulsion. This study also indicated that the interaction effect between xanthan<br />

gum and orange oil showed the most significant (P < 0.05) effect among all interaction effects influencing all the<br />

physicochemical properties except for density.<br />

Keywords: Turbidity, average droplet size, polydispersity index, apparent viscosity, beverage emulsion<br />

35<br />

Food

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!