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Profil Gelatinisasi Beberapa Formulasi Tepung-Tepungan Untuk Pendugaan Sifat Pemasakan (Gelatinisation Profile of Several Flour Formulations For Estimating Cooking Behaviour)

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The combination of starch from various sources, salt and protein, are the basic formulation often found in the Indonesian traditional food. The different composition of amylopectine-amylose and the interactions among the ingredients in the formulation, determines pasting properties in order gain a suitable texture characteristics.

The aim of the research is to study the interactions of severals kinds of flours with water, white egg protein, and salt and its influences to the cooking behaviour of semi-solid food. There are four formulations for each kind of flour (rice, glutenniuos rice, wheat and cassava) that are: (1) water: flour = 25 : 3 g; (2) water : flour : salt = 25 : 3 : 0.28 g; (3) water : flour : albumen = 25 : 3 : 0.3 g; and (4) water : flour : salt : albumen = 25 : 3 : 0.28 : 0.3 g. The flours are analysed for proximate, particle size distribution and amylose-amylopectine composition. Pasting behaviour is measured using Rapid Visco Analizer (RVA) to determine peak viscosity, peak temperature, and peak time gelatinisation. Rice, glutinous rice, wheat and cassava flours have different gelatinization profiles that depend on starches structural origin and amylose and amylopectin composition. Wheat flour has the lowest peak viscosity among four type of flour examined, whether cassava flour has the highest. Salt in starch-water system delays peak time. Egg white protein raises peak viscosity of starches, the addition of salt and egg white protein simultaneously into the system increases peak viscosity and causes the peak occurs earlier. In food processing, tapioca flour can be used to give viscosity at short time cooking but it could not give a sufficient viscosity to the cold products. Rice flour needs a long time cooking to give a suitable viscosity to the products, however this viscosity can hold well in cold temperature.

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Detail Information

Series Title

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Call Number

Penelitian Gizi dan Makanan, 35 (1) 2012: 13-22

Publisher

Bogor : Puslitbang Gizi, Badan Litbang Kesehtan., 2012

Collation

10p.

Language

ISBN/ISSN

0125-9717

Classification

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Content Type

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Media Type

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Carrier Type

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Edition

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Subject(s)

flour
salts
COOKERY
gelatin
viscosity

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