The fat and moisture contents of the soy dough and donuts are
shown in Table 1. The fat content (g fat/100 g dough) of all soy
dough (17.10e18.18 g) was higher than the wheat dough (9.02 g).
There were no significant differences after HPMC addition in fat
content among the soy doughs. During frying process, wheat control
donut had the highest fat content donuts (35.01 g fat/100 g
donut). All soy donuts had a 16e28% lower fat content than the
wheat which concurs with the other study by Mohamed, Lajis, and
Hamid (1995). Moreover, the surface application of HPMC significantly
reduced fat content in the soy donuts (p < 0.05). SHC donut
had the lowest fat content (25.13 g), followed by SH (26.63 g), and S
(29.30 g), respectively. For moisture content (g moisture/100 g
dough), all soy doughs had lower moisture content (14.04e15.73 g)
than the wheat control (19.86 g). Marco and Rosell (2008) found
similar results when part of the rice flour was replaced with soy
proteins. However, after frying, soy donut had similar moisture