Scientific Evidence of Rice By-Products for Cancer Prevention: Chemopreventive Properties of Waste Products from Rice Milling on Carcinogenesis In Vitro and In Vivo

Table 2

Proximate composition and minerals contents (% of dry matter) of rice by-products.

Nutrients	Broken	Husk	Bran	Polishings	Straw	Brewers’ rice
Dry matter	87.0–89.0	87.0–92.5	89–94	90.0	90.9	—
Protein	6.7–9.8	2.1–4.3	10.6–16.9	11.2–13.4	1.2–7.5	9.01 ± 0.27
Crude fat	0.5–1.9	0.30–0.93	5.1–19.7	10.1–13.9	0.8–2.1	1.95 ± 0.11
Crude fiber	0.6	30.0–53.4	7.0–18.9	2.3–3.6	33.5–68.9	—
Ash	5.0	13.2–24.4	8.8–28.8	5.2–8.3	12.2–21.4	1.56 ± 0.26
Carbohydrate	—	22.4–35.3	90.0	51.1–55.0	39.1–47.3	72.42 ± 1.25
Calcium	0.09–0.19	0.04–0.21	0.08–1.4	0.05	0.30–0.71	0.013 ± 0.0016
Phosphorus	0.03–0.04	0.07–0.08	1.3–2.9	1.48	0.06–0.16	0.316 ± 0.028

[38–42].
[38, 39, 43–48].
[38–40, 42–50].
[41, 42, 48].
[44, 45, 51–54].
[55].
scientists commonly use a conversion factor of for crude protein [56].