The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1856-1888, 1865-10-28


conditions JF age. climate, DC, and have on IN
average estimated them IL Of the weight Il
cane Juice. Beside. we 80 that they incr-a-s
With the pressure IN extracting tae juice, and
;Aa- there is thus an Increase # difficulties for
tie manufacturer. Whatever may be the cane
examined. Il j. always IN the most elevated part
IL this plant, consequently III the head. that =
found the greatest proportion OF vegetable mat
ters. Canes that have not acquired tLeIr whole
Development d not generally contain Q much
greater quantity than canes arrived % maturity,
If the weight Of these substances i compared 70
tia: IF Juice, and not. a. some authors appear 70
have done, - al the dissolved matters together.
II We group these divers matters into three cate
g%Jri=5. one comprising What we have already de-
scT!bed under the name q -ranufary matter the
other the albumin Of the juice Or prJteInOus
(ProtiYue) substance c5agulable by heat, and the
third, one OF several azJ-Ic substances c1aEula-
be only By alcohol and the metallic solutions,
We find them upon an average IN the following
proportions:
O.l=r
and AZ they enter in total into juice as 2s
there results from it that one hundre1 parts Of
this liquid contains
Gr1alizry
d. .a,.:.sc- y:
80
Albumin which Is found in cane Juice Is coagula-
bic AZ 500 centigr. Q44 Fah.) and i ordina-
Tily Irecipitated by powerful acids without sensi-
bly, re-diss0lying IN an excess Of the reagent
(du y-Gly.) After a separation Of this albumin
by heat, there remains in the juice a complex
organic matter, ITeCiIitablc BY alcohol and the
neUter acetate Of lead and very soluble in the
alEals and acids, even fannie acid. Isolated and
purified through several precipitatiOns by means
Of alcohol, this substance Is without Odor or
savOr, white, amOrphOus, without action upon
polariz5d light, free from ammonia. and, when it
/ heated with lime or potash, melts through II
re-dlssJlves only in part after it has been isolated.
Thrown into water, 1t forms q troubled and Wis
csus solution mixed with sugar-water. it rem
cers the latter equally visc0us. and appears 70 me
= be the real cause Of that yiscyUs cyusistence
which juice and sirOps take before undergoing
fermentation. This matter escaping from the
AGENTS employed u purify the Juice. accumu!ates
III this liquid and i found in considerable quantity
IN TIE ~lr1p-. They should be considered a. one
OF the principal Gauss which oppose the cxtrac-
ton Of sugar 1t second boiling, Csec,qd ,ef.) for
II - q powerful obstacle 10 the regular c~rystalii-
zsuon Ci that sugar. Tins substance of i com
IleL nature plays then al important part IL the
colonial sugar Manufacture, and merits on tins
score = b-c1me The object Of the most seIi4us
study. / viii here give at once the Quantities
which the different siTOps contain.
N.-MiNERAL SUBSTANCES.
l have estimated, after numerous analyses,
the quantity VI mineral saits contained ia juice
coming from good plantation cane, at % fr
1000 % toe liquid. saline matter, like organic
sut-taHcr, D. found III greater proportion III the
head Of the cane than any other part. The re-
suits furnished by ANALYSIS Of young canes have
not always confirmed the opinion 90 often ex-
pressed, that the salts Of Juice extracted from
this plant are in quantity Is much greater a. il
i farther from is term Of maturity. On the
Contrary, the nature Of the soil has, IL appears u
me, IN this respect, an influence more marked.
and moreover II IS u this that the variations
seen IN the figures representing the saline sub
stances ought % be connected.
Fixed mineral matter, contained in the Juice.
Is formed principally from potash, soda, lime
and CXyIe Of iron IN the state of 4 carbonate.
chlJrure, sulFhate, biphosphate ard silicatc
with which Is found mixed some traces Of alum
and magEesia. The following practical ANALYSIS
with ashes coming from Il great number of cane
juice extracts, Of different species and cultivated
on lands Of different natures, can BE- considered
a. averaging (reSUmaHO the proportions in
which are found the substances that are most
important for Us to determine:
Potash and
0%ils q 10
AIlm, maeaesia auI acids. in combination Win the base: >
here
100 %
The plantations Of this colony having been
twice COMPROMISED by great alterations, once
neccs=itating the abandonment of the Tahiti cane
and employing for several years the more mod
crate and rational species Of Bellouguet, it seems
u me interesting u seek whether the ashes Of
this cane present, in connection with the sub
stances which constitute it, any plainly apprecia-
bic notifications. The researches | have at
tempted in this way remain without results. hav-
ing always found the saline bases which are met
with IN = normal state, and | have discovered in
respect 10 the fixed alkalis neither augmentation
or dininutiOn susceptible Of being connected with
other causes, either with the variations proper to
these bodies OF with the errors which such anal
ysis often allow.
In order To terminate that which is connected
with this part of our subject, L give the average
quantity Of fixed salts in four species Of canes the
most cultivated in this colony. This quantity
has been determined by incarceration Of thin
pieces Of cane previously dried for several days in
. stove at a temperature Of 100 ccntigr. doll
ing ICiHt)
G~cleuguet. Guiashan- Bambou. Penang.
Wat, sugar. aud Jr-
gsIlr r---cer.--...sS-S $50 tg32 COL
sai-s----.-- Il II IS .
1000 1000 iC9-J5 10000
10 b. c0ntHgei1
SPERM AND WHALE OIL.