The Hawaiian gazette., 1885-04-01


broken and the whole mass reduced to a p1lp and
brought into the most favorable condition for the
rolls TO give he largest extraction of juice. nls
experiment vas of the whole crop of over *oV
tons of cane andbu for the disadvantages men.
toned would have averaged he think l75 lbs OF
sugar to the ton OF cane against itS in lscs an
increase of about psi pr cent. This is iarge
gain and will well pay FOR the additional expense
With the Joints all broken and the cane reduced
10 ! pulp, It rlust be il a most favorable condi-
ton for expressing the Juice, with the application
OF the minimum OF power and with the apps,ca-
ton of no, water 10 the crushed trash before going
through the second two roll mill. il would seem as
though It must thoroughly extract all the sugars
as the diffusion process, as the crushed cane would
seem to be in better state for the solvent action
of hot water, than the sliced cane to which 1t IS
applied IN the diffusion process. In the early stage
of the beet sugar industry il was ascertaned that
many OF the cells containing the sacharine huid
were not ruptured aud the sugar not extracted
and khe crushing process was exchanged for the
grating, with the addition of maceration which e1
iraeted all or about all OF the sugar, about II per
cent, being an average of more than was extracted
from cane by former processes although cane
whose juice has density of 10 has l6.l7 per cent
of sugar in it.
On the Waiakea plantation in Hilo, Mr.. Young
mas introduced the maceration process with eN-
cellent results. He has a three roll mill in which
the cane IS hrsi crushed IL Is keyed mp very close,
so rs to produce the greatest quantity of juice
that one mill IS capable OF getting from the cane.
Grated IN not water and then run through power
fni two rou mill, closely keyed up, extracting
mueii, perdSps most of the remaining fluid adher
ing 70 the trash and released by the solvent action
OF the h0i water. The rolls OF both mills are 20
by % Inches shafts, u inches in diameter, and
moved by powerful steam engines, the Juice is
evaporated IN double effect and the trash affords
sntncient fuel for evaporating and all mill pur-
poses, and here again ii seems as though the
crushed and PUPPY condition OF the trash, after
passing through the trst mill, must be more favor
able Tor the solvent effects OF hot water than the
mere slcing II into thin slices iengthwise would
make 1t. At all events the results of the macer-
alton process at the Waiakea Mill, as stated BIZ
Mr.. Young in the Planters NoHtkly, and TO me
personally and by my own estimates from the
mill records, of ten consecutive days work which
he was kind enough 10 supply TO me, have been
very favorable. In addition / wrote to Nj. Chaplin
the manager OF the hohala plantation requesting
nm 10 send 10 Waiakea by steamer a small
quantity Of fresh trash from the Kohala Mill 10
he macerated and run through the second mill. He
sent sNol lbs-S06S lbs of trash also sen; from
the Papaikou Mill. The results of these expert
ments think fully sustain Mr.. Ioung's state
inents OF increased production, in the March
Planter. The records of the 10 days work is a
little better still, showing l6.SS per cent increase
against l5s4, and l am told by Mr.. Young that
present work shows slightly better results still,
running as high as 1854 per cent OF increase at time
owing no doubt in part 10 the varying quality of
the juice and their increased experience in hand
ling, especially the proper temperature of the water
used IN maceration.
In may be well to repeat the general results of
the maceration process as far as it had proceeded
as recorded in the Planter.
To thoroughly test this usir procsss the three
roller mill, the only one heretofore used, whose
usual product has been about 30 or IS CHARTERS
per daS was so closely keyed that it would deliver
but 20 SO that all the juice to be obtained by one
grinding should be got ont. Cane was then
ground yielding 215 S62 imperial gallons of juice
standing It an average density of 1927 at tenn
pc. .ture Of Is +. which for comparison we will
nil anti 1ks H..
ration mills dealing with the trash from the three
roller mill Welded S5437 imperial gallons of al
luted juice standing at a density of 8 s6 Il when
at a temperature of 80 +. which by the same mode
of reckoning would give S6.I66 lbs of sugar or A
saving of over 1851 per cent in sugar Bnt n ina
juice from the maceration mill polarizes much
higher per degree Of density than that from the
three roller mill the actual percentage is HIGHER
than these figures would show The increase ,f
sugar by this method may make all the difference
between success and failure with the planter, and
as it is being eEperimented upon here, and can De
thoroughly examined in its results and better
added here than elsewhere. it is worthy of the 81
rlous consideration of our planters Be SUGAR
high or low, treaty or no treaty, we have learned
by experience that expenses are unavailable %
high Il AZ all that can be realized is needed IN
maintain our community and institutions in n
moderately prosperous condition. JuIce at M
contains Is $500 and the cane from which it is
extracted 10 l7-lOO per cent. OF sucar. Waiakes
with its powerful three roller and KEYED up mill
welded possihle II zen cent from, tbe ,ano ~
maceration advanced tho per cent of weld 10
about l2sf from the cane, and an i,,r,eTs, oT I5(
uer cent 10 The oaantity Of smear az '' i'yt
BY actual experiment of weight and measure in
1877 only about 10 per cent on The cane was reaI-
lied on Juice standing l0i at Kohala, and relia-
bic quotation from best Demarara folds gava M,
80 per cent Of sugar on tho cane-fronn The frst
grinding. What is extracted by the nacerafion
or any other process comes from the 6 per cent
remaining in the trash aud is so much GAINED
upon former yields-aud in those mills like MI
Young's where more than 10 per cent is released
by the first grinding the gain is not as great as il
would be where the frs, mill is not rs royverfnI
The GAZETTE of the 18th has come in and not.
an article signed b. II know not by whom in
which the trash sent to WaiakeA is mentioned
and its yield of y gals at 81 b. The writer has
not stated the whole. II was RIM drv tbroncb fha
three roller mill yielding 81 gallons at 81 b. II
was then macerated with hot water. and passed
through the roller mill Welding Is3 tcallons ~
the diluted juice a. a density of by the Saccbro
meter The Weld Of sugar from Inc mice less
any residiuem of molasses, (should there he anv1
should be as follows from - gallons OF mice AZ
So weighing 1868 lbs per gallon with sugar in
solution, for each pound of Juice 1851 = * %
lbs; 1872 gallons at A density WEIGHING 10 . lbs
per gallon with sugar in solution for each nonnd
of Juice J7'S5. 1861 Total from, the alOO trash
90 lbs. II the Juice at Kohala stood at IOiIs
as in 1877 then the cane should have WEIGHED 43s0
lbs, the Juice 227g lbs or PIP imperial gallons and
the sugars from the first GRADING 40 1850 Is nj
1917 lbs weight per gallon and 1888 lbs suoar per
pound of Juice.
This shows much larger increase up1n the
sugars from the first grinding than Waiakea
sugars in the - Planter but it should be much
larger as the three roller mill is supposed
to release IL per cent of the sugar from the cane
instead of the 10 per cent Of the lighter mills
There may b. clerical errors or errors in compu-
t,+i,,, - ~. s,z,...;,.-. -. \ y.