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Mechanical seed extraction is used by large-scale
operations. Put the ripe fruits into the mechanical seed extractor
for crushing and separation of the seeds and gel from the pulp. |
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Gather the seeds and gel mass in a suitable
container such as plastic tub or bucket. |
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Instead of fermentation, treat the seed-gel
mass with 0.7% hydrochloric acid (HCl) at a rate of seven milliliters
of HCl per kilogram of seed-gel mass (Figure 27). Stir the seed-gel
mass while the acid is being added. Continue stirring for 40
minutes until the gel is visibly softened or dissolved. Caution:
Higher concentration of acid or longer treatment will injure
the seeds. |
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When the seed is separated from the gel, pour
the acid-treated seeds into a clean fine-mesh bag. Wash the bag
with tap water thoroughly so that no acid is left on the seeds’
surface. While washing, step on the bag to squeeze out the remaining
gel. |
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Place the seeds into a plastic container,
filling it to one-third capacity. Then, fill up the container
with tap water. Stir the seeds to enable the small pieces of
flesh and skin to float. Incline the container and remove the
floating debris. Make sure the seeds remain at the bottom of
the container.
Repeat the washing procedure several times
until all the debris is gone and the seeds are clean. |
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