1
Study of Temperature and Time Steaming of Dough as
Material of Analog Rice Making
I Gede Pasek Mangku
1
, I Nyoman Rudianta
2
, Luh Suryati
3
pasek_mangku@yahoo.com
1
, suryatiluh1@gmail.com
2
Agriculture Faculty of Warmadewa University, Bali, Indonesia
Abstract. Carbohydrates used in the manufacture of analog rice dough can come from
sources of cereals and tubers, both in the form of starch and flour form as a whole. The
factors that determine the quality of analog rice as a substitute for rice are, amylose and
amylopectin ratios, protein content, starch gelatinization temperature, development of
volume, water absorption, gel viscosity, and consistency of starch gel. This research is
a factorial experiment with Randomized Block Design (RBD) consisting of two
factors, namely: factor I, steaming temperature (P), which consists of 3 levels of
treatment, namely: steaming temperature 70
o
C ± 5
o
C (P1); 80
o
C ± 5
o
C (P2); and 90
o
C
± 5
o
C (P3). Factor II: Time of steaming (W), which consists of three types of treatment,
namely: (W1) = steaming for 20 minutes; (W2) = 30 minutes; (W3) = 40 minutes. The
data obtained will be analyzed by ANOVA and followed by LSD test (5%) if the
treatment has a significant effect (P <0.05). This study aims to determine and analyze
the effect of temperature and time of steaming on the chemical and sensory properties
of the dough.The results showed that the interaction of temperature and steaming time
had a significant effect (P <0.05) on the moisture content of the dough but had no effect
(P> 0.05) on fat content and amylose. The average value of the dough water content
ranged from 52,736-59,627%. The highest water content of the dough was 59,627%
produced by steaming treatment at 80
o
C ± 5
o
C for 20 minutes. While the lowest water
content of the dough was 52.736% and the steaming treatment temperature was 70
o
C ±
5
o
C for 40 minutes. The average value of fat content of the dough ranged from 2.452-
4.003%. The highest fat content of 4.003% was produced by a treatment temperature of
90
o
C ± 5
o
C for 20 minutes, while the lowest fat content was 2.452% produced by the
treatment of steaming temperature of 70
o
C ± 5
o
C for 40 minutes. Amylose dough levels
ranged from 0.014-0.055%. The sensory test results showed that the average color
values ranged from 1.93-3.67 (very dark-lightness), the highest color value of 3.67
(lightness) produced by a treatment temperature of 70
o
C ± 5
o
C for 40 minutes. The
highest odor value of 2.70 (agak langu) was produced by a temperature of 70
o
C ± 5
o
C
for 40 minutes and the highest texture value of the dough was 3.40 (smooth) produced
by a treatment temperature of 70
o
C ± 5
o
C for 40 minutes.
Keywords: Dough, steaming, taro, tofu, quality.
WARDS 2018, October 30, Bali, Indonesia
Copyright © 2019 EAI
DOI 10.4108/eai.30-10-2018.2281463