Resumo

LARIOS-SALDANA, Alfredo; PORCAYO-CALDERON, Jesús  e  POGGI-VARALDO, Héctor M.. Obtención de una harina de pulido de arroz desengrasado con bajo contenido de fibra neutro detergente . INCI [online]. 2005, vol.30, n.1, pp.29-32. ISSN 0378-1844.

Rice bran (RB) could be used for animal feed or human food because of its protein and minerals profile, provided that the rice bran oil and the excessive fibre contents could be eliminated or reduced. In this work, the granulometric and the proximal characteristic of RB and deffated RB (DRB) were studied. It was found that RB shows a predominance of coarse fractions (>70% of the mass corresponds to mesh sizes >120), whereas DRB exhibits a more uniform granulometric profile. The fat content of the DRB was <10g·kg^-1. The fine fractions of both RB and DRB had a larger percentage of free nitrogen extract (ca. 600g·kg^-1), while the coarse fractions were rich in neutral detergent fibre (NDF, ca. 420g·kg^-1). In the particular case of DRB, up to 36% of the mass fell within the fine fraction range (<0.092mm, mesh 180) and was low in NDF (180g·kg^-1) and high in protein (126.6g·kg^-1). This flour deserves further studies regarding its potential for human food or animal feed applications.

Palavras-chave : Fibra Neutro Detergente; Harina; Proteína; Pulido de Arroz; Pulido de Arroz Desengrasado.