Process and apparatus for analysing and separating grain

A process for analysing quantities of grain in-line and separating the grain into batches on the basis of one or more grain parameter values, the process comprising:

• delivering an optically dense grain layer continuously past an in-line measurement area;
• analysing a quantity of the grain by emitting light onto the grain layer, the light being reflected from the quantity of grain passing the in-line measurement area and detecting the light reflected from the quantity of grain to provide a spectrum of the quantity of grain;
• converting the spectrum into the or each grain parameter value;
• and
• separating the grain into batches by sorting the grain quantity on the basis of the or each grain parameter value;
• wherein the grain is separated in-line on the basis of the or each grain parameter value.