An alternative method for collecting seeds is to lime the
mixture of peel, rag, pulp, and seeds and dry in the conventional
manner for the preparation of livestock feed. The dried seeds
have a greater density than the dried peel, rag, or pulp and may
be effectively separated by a system of cyclone separators,
screens, and winnowing devices (50). The main disadvantage
of this process is the high initial cost for equipment. Seeds sep-
arated by this procedure are quite likely to have a moisture con-
tent that is higher than that required for safe storage (8% to
10%) and would require additional drying.
 The percentages (wt/wt) of wet seeds in the whole fruit of
most varieties are averages obtained for one entire processing
season (Table 2). These percentages are generally higher for
immature fruit and lower for mature fruit, as shown in Table 5.
Variation in the juice weight is responsible for this difference,
since we found the seed weight to be rather constant through-
out a season. Season to season variation in the percent (wt/wt)
of wet seeds in the whole fruit is also small for Duncan grape-


Table 5. Percentage (wt/wt) of seeds in Citrus and the related percentage in
 the corresponding dried pulp for a season.

 Seeds in Grapefruit Seeds in Oranges
Variety and Whole Dried Variety and Whole Dried
Month of Season Fruit (%) Pulp (%) Month of Season Fruit (%) Pulp (%)

Duncan Pineapple
 October 6.8 18.7 October 5.2 14.2
 December 4.8 15.2 December 3.2 11.2
 February 4.3 13.9 February 3.1 11.2
 April 2.9 11.2 April 2.7 10.2

Foster Pink Parson Brown
 October 5.0 10.4 October 3.5 9.5
 December 4.1 11.5 December 2.4 7.5
 February 3.1 11.1 February 2.2 8.5
 April 2.6 10.9 April 1.7 7.0

Marsh Valencia
 October 0.5 1.7 October 1.2 3.5
 December 0.3 1.9 December 0.8 3.2
 February 0.3 1.8 February 0.7 3.2
 April 0.3 2.2 April 0.7 3.2