2) PURITY (98.5% Minimum):
Definition:
Purity refers to the
wholesomeness of the seeds. The specification is that the seeds should be as
clean as possible, i.e. at least 98.5% pure.
Manual Assessment
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Importance
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a) Whole seeds
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Whole seeds prevent them from
turning rancid during storage/ shipment as well as preserve the quality of
oil. Damaged seeds turn
them rancid quickly and erode quality of the oil.
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b) Free of insects
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Absence of insects prevents
damage done to seed appearance, smell and taste by insects. Damage to the seeds caused by insects,
which aggravates during storage/shipment, erodes the quality (cleanness and
oil content) of seeds.
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c) Clean seeds
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To ensure absence of dirt, stones and other particles which reduce
useful seeds in any given quantity purchased and cause processing
complications.
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