The sun. [volume] (New York [N.Y.]) 1833-1916, 1910-03-13
A MICROSCOPE FOR The COOK
one Sure WAY or EXPOSING
CERTAIN ADILTERATIONS.
Powdered Rock IN Celery seed. ChicOry
IN COfee ana Olive pts In spices
DtseioSeu ~ I.enses % HIsh Power
Tests fer JAIME NrIInetal Lemon.

WAsKINoJoS. March "A power
tul microscope 70 recommended by the
food sharpe Of the Department Of Agri-
kitchsn ussnsil.
a microscope is useful IN the exami-
nation Of food and drug products. said
B, J. Howard OF ths bureau OF chemistry.
OF course e can De readily understood
how gross Adulteration may - detected
by a simple maRniner As for inst noe
when foreign seeds. gravel or powdered
rccS have been mixed With whole small
spices The adultsrsnt may he Of such
character a. easily 10 escape the notice
u the ordinary buyer. though with even
4 small lens or reading glass the fore, On
substance may be seen 20 be very differ
ent from tas true spice
-Oae case recently brought 70 the at
tentlcn II tie bureau Was = sample q
celery seed diulteritsi With nearly q
p-r cent ~ powdered rock. the color
and re - TIE rock particles being such
a. 20 us slsl'v over 'oked ia a Casusi eN-
animal On small ma gniner. how
ever made the difference yr-v apparent
az once as YOU viii see from the simple
which v pa other similar samples 7 hav.
mounted as a specimen magn.tcltion
oI ouiy sly d.grp.rers shows the CON
,rsst ~ the regular shaped celery seeds
with the angular rock particles
Inc -s-fu.ucss Of the SIMPLE msGnI-
fer IN drumming food and drug materials
however D., II limited application and
for the examination OF products which
are made 10 - small particles such 49,
four ground spices aud poV Tered drugs,
has Et'i. or ~ value Ia SUCH cases r.
course must be mad - the compound
microscope with q msgnlfying power
ranging from 50 10 t0O diamCtrrs.
he Use & this int -iIn-ui in detecting
adult ration m various common food
product requires Some amount ur EXPERT
know '..,ige hu' this - reIi div gained
With q u'tly experience The charl"'s-Is-
uc- = m" uiferaut starch prudu~'S for
Inz'lUre. under the nucrc-cop. gr. easily
learned
Ia the naked eye al thee" st1rches
appear 49, q I'm. - ate powder bat under
ID. microscope grain " grsnules are
seen which vary more or less in SHAPE.
sIzr rings &C. In the case VI potato
starch. FOR example. the grains are Arg,
with smooth outlines. while rice starch
has small grains with angular outlines.
here - a specimen Of potato starch adul
tsrated wiVh a considerable amount Of
cornstarrh Ths grains u the latter are
.asIiV distingHshsd ty their angular
torn
IN the oase ~ spiocs most ~ the sub
stanoe, u--d for adulteTatinn have A
slruoturs v.ry different from the genuine
article FOR example, although PEPPER
adult-rated with ground peas or Jeans
nav not always be detected even by
means % the chemical tests II the eVpert
especially when olive pits OF pepper shells
have been added 20 counteHct tie excess
Of st1rch present IN peas. the microscope
Vin reveal such sd'ilteration at once Nv
moving tn presence 81 the large starch
zTaIns OF certain legumes.
IN pepper the starch - present IN angu-
n "A specimen ~ this sort Of adulteration
IA which the angular masses Of pepper
lrs readily di~,in G'nshed from the nearly
eInpsoidai bean starch grams.
II -Omefiusr- occurs that a manufAc-
turcr nas ADDED so large an amount Of
oorn meal or foreign ground shells and
fru'' stones to a pepper "a % make the
adulteration apparent 90 the taste by the
lack " pungency. which Ia often corrected
by adding a small amount % cayenne
Pepper The microscope easily detects
3 trick OF this kind because the tissues
Of the added substances are distinctly
different from normal pepper tissue.
Here IL q hample Of Pepper which u grossly
adulterated with ground olive stones. n
which The differences IN siHs and form q
che Tissue celss are well exemplined.
-sofnefinles cayenne Pepper h adHl-