Acessibilidade / Reportar erro

Efficiency of the gravity table in the processing of coriander seeds

Eficiência da mesa de gravidade no beneficiamento de sementes de coentro

ABSTRACT

This study aimed at assessing the quality of the physiology and health of the coriander seeds processed in a gravity table. This was investigated at two settings namely, I with angle X 3.5° and angle Y 3.1° and II with 3.9° and 2.7° angles, with five gravity table discharges (high, high intermediate, intermediate, low intermediate and low) besides feeding. The experiment adopted the 2x6 factorial scheme, in a completely randomized design, with four replications. Two coriander seed batches of cultivar Verdão were used. The gravity table was adjusted to have 2.9 m s-1 air speed on the platform. The seed fractions discharged in the lower portion of the gravity table revealed poorer physiological performance than that of the others. Regulation I (angle X 3.5° and Y 3.1°) was sufficient for the coriander seeds to be processed in batch 1 and regulation II (angle X 3.9° Y and 2.7°), was adequate for batch 2. The processing of batch 1 in regulation II was effective in separating seeds of higher sanitary quality by rejecting the contaminated ones.

Keywords:
Coriandrum sativum; separation; specific mass; physiological quality

Associação Brasileira de Horticultura Embrapa Hortaliças, C. Postal 218, 70275-970 Brasília-DF, Tel. (61) 3385 9099, Tel. (81) 3320 6064, www.abhorticultura.com.br - Vitoria da Conquista - BA - Brazil
E-mail: associacaohorticultura@gmail.com