Rice dehulling

Radioprotective effect. Rice seeds of cul-tivars Katakutara and Kusabue, kept in the seed hull and irradiated with y-radiation, showed greater germination than those that had been dehulled and irradiated ° . Salivary secretion. Decoction of the grain, administered intraperitoneally to mice at a dose of 100 mg/kg, was inactive vs pilocarpine-induced salivary flow in streptozo-tocin-diabetic mice " . ... 

The polished white rice that is an important staple food for a large section of the human population is obtained by milling paddy rice. It is first dehulled to yield the following fractions (approximate proportions in parentheses) brown rice (80%) and hulls (20%). The brown rice is then milled to yield rice... 

Rice seeds (Oryza sativa L. cv. M202) were obtained from Dr. Neil Rutger, University of California, Davis. Tan-ginbozu rice seed were obtained from Dr. L. Rappaport, University of California, Davis. Seeds were dehulled and surface-sterilized in 95% ethanol for five min and 40% commercial bleach for 30 min, followed by five washes with sterile distilled water. For shoot production, M202 seeds were incubated for five days on 0.8% agar medium in the dark at 30°C. When... 

The instability of rice bran has long been associated with lipase activity (35). As long as the kernel is intact, lipase is physically isolated from the lipids (29). Even dehulling disturbs the surface structure allowiug lipase and oil to mix. Oil in intact bran contains 2—4-% free fatty acids (2). Once bran is milled from the kernel, a rapid increase in the FFA occurs, lu high huuiidity storage, the rate of hydrolysis is 5-10% per day and about 70% in a month as shown earlier. The objectives of rice bran stabilization are as follows ... 

Fs and co-processed mixtures of dehulled soy grits with corn, wheat, and rice were produced. 

Tempe (in literature also spelled as tempeh ) is a sliceable, cake-like product made of dehulled cooked soya beans, penetrated and fermented by a mixed microbiota dominated by filamentous fungi (Nout Kiers, 2005). Tempe is used as a side dish with rice as a staple. It can be prepared in many ways (Shurtleff Aoyagi, 2001b). 

Dehulling of rice, oats and barley requires special processes (cf. 15.1.4). 

Rice lAlsn see RiCE.I Flour Is mede from broken pieces of polished, dehulled gram. Bland flavored, white colored. May be griny if not ground finely. Baked goods may dry out end crumble. Too weak for yeast leavening. 

FIGURE 7.7 Equipment commonly used in rice-milling operations, (a) Schema of rubber roll dehuller (courtesy of American Association of Cereal Chemists), (b) Schema of abrasive disc dehuller (courtesy of American Association of Cereal Chemists). 

Dehulling Name of the milling operation aimed at the removal of the glumes (lemma and palea) or hulls. Paddy rice and oats are almost always dehulled during milling operations in order to obtain white rice and groats, respectively. 

White rice Rice obtained after dry milling of rough rice. The paddy rice is first dehulled, and the resulting brown rice is next decorticated and polished. White rice is free of glumes, pericarp, germ, and the alenrone layer. It basically consists of starchy endosperm. 

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