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After the camellia seeds are picked and
dried, they will automatically rupture. Then peel and shell
off, crush, braise and fry, through first oil pressing we can
acquire crude camellia oil.The crude camellia oil must be
refined and processed before secure for eating.
(1) Press crude camellia oil:
Crude camellia oil has some phospholipid,
dissociative fatty acid, pigment, peroxide, some kinds of
mechanism impurities etc. The existence of impurities easily
brings rancidity of oil and metamorphosing, affect the smoke
point of camellia oil, which is bad for people’ health.
(2) Residue removed and dehydration:
The deposits are filtrated and the residues
are removed, then the mechanism impurity, gelatine, protein
and other water-solubility impurity of crude camellia oil are
wiped off; the superfluous water of crude camellia oil is
wiped off by dehydration. Residue removed and dehydration can
improve stability and purity of camellia oil.
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(3) Deacidification and degelatinize:
Some dissociative fatty acid of crude
camellia oil is wiped off by deacidification;
insolubility impurity of crude camellia oil is wiped off
by degelatinize (such as phospholipid), protein and
manifold resin shape colloid, which can availability
prevent rancidity of oil and metamorphosing, and
heighten the smoke point of camellia
oil. |
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(4) Decoloration, deodorization and
degreasing
―The
First-Grade Camellia Oil:
Organic pigment (chlorophyll, carotene,
flavone pigment, anthocyanidin) and some decomposition
product of protein are wiped off by decoloration, which
improve the color of camellia oil to be more clear; the
smell of a few aldehydes, ketones, hydrocarbons, low
molecular fatty acid, oxide of glycerides and etc, which
is wiped off by deodorization; high dissolved point
fatty acid in grease is wiped off by degreasing,
filtration and separation. The decoloration,
deodorization and degreasing assure the limpidity and
stability of camellia oil. |
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