Leader in Biological Sensing Systems is pleased to make the following
materials available for process testing
suum eggs from pig feces
Eggs are highly viable and supplied with documentation
certifying the percentage of eggs that embryonate in culture
Eggs have not been subjected to any caustic chemicals
during the extraction process
Can supply orders of 10 million, 100 million or more,
depending on the needs of the test system
Eggs are collected on a regular basis and can be stored
in the preservative desired.
Chambers loaded with 100,000 Ascaris eggs
Eggs are in direct contact with the wastewater or biosolid
The Sentinel Chambers allow rapid equilibration with
The large number of eggs supplied
in each chamber makes recovery easier and less expensive
and supplies easily retrievable eggs for viability determinations
The Sentinel Chamber with Ascaris Suum Eggs
Sentinel Chambers are loaded with 100,000 Ascaris
eggs and wastewater or biosolids taken directly from the treatment
plant to be tested. Fine mesh screens on the ends of the Sentinel
Chamber hold the eggs within the chamber and at the same
time allow the interior to equilibrate with the surrounding environment.
After the Sentinel Chamber is in the test environment for
the requested period, the eggs are easily recovered to determine
viability following disinfection.
We now offer porous stainless steel Sentinel Chambers
Maximize surface area and equilibrate with the surroundings with
our completely porous chambers. Available sizes: 1" X 1"
, 1/2" diameter X 1" long, and 1/4" X 1" long
(2 micron, 5 micron, 10 micron, or 40 micron). <<Several
other sizes available by special order>>
Our basic Sentinel Chamber containing Ascaris eggs,
has two stainless steel mesh screens with 30 micron pores. Diffusion
through the screens occurs quickly so that the interior of the
Sentinel Chamber rapidly equilibrates witht the surrounding
environment. Therefore, the effect of any disinfection treatment
on the eggs in the outside environment is reflected by the effects
on the eggs within the sentinel.
The Ascaris suum eggs used have received no treatment with
harmful chemicals and are recovered from the feces of naturally
infected pigs. The number of eggs loaded into each Sentinel Chamber
makes recovery for viability determination easy and quick to perform
using the procedures shipped with the sentinel devices.
High Egg Viability
The percentage of viable eggs in each shipment is certified. Viability
is determined by examining eggs that have been placed in culture
and allowed to embryonate. A viable egg is an egg that contains
a living embryo at the end of the culture process. Typically,
greater than 90% of all eggs in the containers are viable.
Durable and Easy to Use
Excelsior Sentinel, Inc. has developed a series of inexpensive
containers that makes the recovery of Sentinel Chambers
from large digester tanks, stabilization ponds, or lagoons relatively
easy. The Sentinel Chambers are resistent to most environmental
extremes and have remained in soils and manure piles for up to
six months without any observed detrimental effects on their integrity.
Excelsior Sentinel, Inc. will gladly make available methods for
the extraction of eggs and oocysts from the Sentinel Chamber
and various support matrices. Excelsior Sentinel, Inc. does not
perform viability assays on the organisms after field testing.
However, we will gladly refer clients to laboratories that perform
For Process Development, the Sentinel Chamber provides
an efficient method to test specific disinfection procedures,
allowing more tests and results in shorter times.
The Sentinel Chamber can be filled with eggs in wastewater
from the specific facility being tested so that environmental
conditions unique to that facility are replicated inside the Sentinel
For testing laboratories, the Sentinel Chamber provides
significant savings due to the elimination of tedious and expensive
processing of large volumes of biosolids in order to recover pathogens
for viability determinations.
The Sentinel Chamber provides a source of guaranteed
viable eggs on short notice (within 2 days of receipt of wastewater
sample). It eliminates the need for collecting and preparing large
volumes of wastewater for shipment to the testing laboratory and
allows for the testing of specific processes.
Packing and Shipping
Each Sentinel Chamber will be loaded with the eggs within
our facilities in Ithaca, NY. When the client supplies the biosolid,
we will send containers for the biosolid along with shipping instructions,
and the loaded Sentinel Chambers will be returned to the
client within two days by overnight express. If the client prefers
to purchase the Sentinel Chamber containing pathogens in
water, sand, or anaerobically digested biosolids, delivery can
be made within 24 hours.
Sentinel Chamber loaded with the wastewater or
biosolid of interest:
___Sentinel Chamber containing
100,000 Ascaris eggs
of 10 to 100
of more than 100
Sentinel Chamber loaded with water, sand or digested
___Sentinel Chamber containing
10 million oocysts
of 10 or more
of eggs and oocysts
We offer bulk quantities of eggs for studies where it is necessary
to spike large systems for viability determinations. These eggs
are supplied with the same viability documentation as the eggs
used in the Sentinel Chambers.
Ascaris eggs (each 10 million eggs)...................................................$1180.00
___Prices for larger or smaller numbers
of eggs are available upon request.
For ordering information, click below
or call or email:
Excelsior Sentinel, Inc.