Translation 2783

..... 367
Li:yuid-ceni ri.fuk;es ^, separators) are used to obta,in t'rie oil.
The princi.pal i•ro_•1--ing, jDart of the se,para.tor is a dxum cî at rotates at
6,0'30
1.11zc
contained mass, which consists of fractions of dif--
ferent densities, is separated by centrifuGal force into its constituent
parts.
Solid particles and water are throl,•rn to the walls of the rotating
drum, w't!il.e tl:e lighter oil. frac-Lions are concentra.ted near its centre;
The purifà.ed oil i s
they rise u-^p and en-cer an oil-collecting cl,axnber.,
then conveyed into stora.ge-tanks.
qllO,llti j of Zi!^
J
^l'ïle n^c^.x;?i^'^'II]_ off obtai.ned depends on the ?)rocessin^ method. 2•)
The best•-cîuality oil is produced by the vacuum process. 1-11he "physical
propeit;.es, cîua.li.t^r, and co__^?position of the oil also de;.^end on the
snecies of whale and the part of the body yielding the oil. The characteristics
of oils from various whale speci.es are given in Table 16.
Oils obtained from
^raîtisa are usually distinLuisheü by higher
acid numbers (up to 2.1, as compared with 0.7 for other oils) and by
lower capa.city for hydrogena.tion.
Edible whale oils should meet the requirements of All-Union
State Standards 8714-55, and technical and sperm oils should meet those
of All-Union State Standards 1304-60.
11
PRit'^?RA'^ :COi:; OF 1^1,A^'-I4i^1,AL FOR AîsIliAl FOOD
The nrincipal. source of meat-meal for animal food is the flesh
of whales, but the liver is also used. The yield of mea-L-1 from various
baleen whales and the sperm whale is shown in Table 17.
Whale meat contains up to 25i or 26-^ of valuable proteins. It
is-very close to beef in its composition, and also contains various
amino acids and. histidines, -,rîli ch are required for the growth of the
hur.iar_ boc.y:
On account of its hi;;h content of cor•nective-tissue proteins
hale meat has a more fibrous s ^ructure than beef.
,; ^- ,> its fat content °•l;he ventral part
^^ ^,le mea^ is not uniÿo_i,i in i^u ^
conta,ins z_rucii more fat than the dorsal part.
If the nea.t is desilned. for human food it sl_ould be briz,ht in
b
hue the la,, se of ti..r.e _^tcr î.illin; is usu:^,l1y not more than nine n.ours);
it sîlould be
to dark-red (depending on the wha.le suecies, and it
•
s?-.ould have a si)ri.z_,r consistency.
It should be free fro,(i foreiEn matter.
resi: :.c.wc it. r";J.t:'.iJl.e
or hu,.ia.n food is made into I.zeat-ra-a.l for
i^il.led T10re °^:_c'.l"1 11].Tle 11oU.rs
animal food, as, vel l as i:LCD."; :i].'Oi!?