Sepbox
Nature has a practically infinite variety of useful compounds.....
Throughout history, valuable therapeutic ingredients have always
been derived from plants. One well-known example is the willow
tree, whose bark was used by the famous greek physician Hippocrates
to treat inflammatory diseases around 400 B.C. The effective
natural ingredient extracted from this bark has been developed by
scientists to make acetylic acid, which forms the basis of many
current pain relievers. Today, we use a substance extracted from
a nut tree in the Philippines to treat epilepsy. And Curare, a neurotoxic
substance derived from lianas vines in the Amazon jungle, is
used to relax muscles and treat tetanus.
Natural compounds still play an increasingly important role in
many areas of research and development. Their structural diversity
is enhanced by the synthetic potential of combinatorial chemistry. There are many new classes of substances waiting to be
discovered, and the diversity of these compounds and their chiral
properties means that some of these are certain to be highly marketable. Pharmaceutical research is only just beginning to exploit
this diversity.
... unfortunately, they are never found in
their pure state
Access to nature’s inexhaustible supply of compounds has increased
over recent years. However, unfortunately there isn’t the same
limitless supply of ways to process them automatically. Fractionation
and separation of samples obtained from nature remain
time-consuming, tedious and extremely expensive, even though
the assays for testing these samples have become faster and more
cost-effective thanks to advanced high-throughput screening processes. Today, high performance Liquid Chromatography (HPLC) is the
standard technology used for separating compounds from natural
resources.
That’s why we need state-of-the art solutions...
Processing natural product extracts represents a major bottleneck
that is constricting the pace of drug discovery. To ensure that sample
preparation is both reproducible and reliable, it would therefore
be of immense benefit to have an automated process in place
for natural compound purification. the economic potential of this
is tremendous.
...like Sepbox systems
Sepiatec’s unique Sepbox systems allow samples to be processed
automatically, and significantly accelerate the purification process. Results which usually take weeks or months with conventional
methods can be obtained in just a few days – or even one day –
with a Sepbox system.
The Sepbox concept is based on a patented combination of high
performance Liquid Chromatography (HPLC) and solid phase extraction
(SPE) – reliable and proven techniques that provide a universal
platform suitable for processing large sample numbers. Up
to 600 fractions with a very high yield of pure compounds can
be efficiently obtained from subsequent high throughput screening. Using two-dimensional separation, the recovery rate for both
polar and non-polar substances is usually above 90 per cent. Using
an automated and highly reproducible process, one extract can
be completely separated per day. The pure individual components
are soluted in suitable solvents and can be collected in microtiter
plates or vials.
Sepbox 2D-250
Extensive lab facilities are no longer essential to separate a large number of novel compounds.
With a Sepbox system, up to 600 fractions can be produced per
day, many of them containing pure compounds, without investing large amounts in human resources or research facilities. This saves
time and money and significantly accelerates the early stages of the product development process.
The automated Sepbox 2d-250 and 2d-5000 systems allow extracts
from plants, marine organisms, microbiological or animal materials to be processed in quantities of up to 250 or 5,000
milligrams respectively. If required, highly polar substances can be
separated using the polar setup. The systems are equipped with
two detectors: UV detection (ultraviolet) and optional ELSD detection
(evaporative light scattering detection), which can detect almost
all substances.
The Sepbox 2D-250 benchtop model is designed for the automated
two-dimensional separation of up to 250 milligrams of extracts. Tithe system offers the choice between liquid and adsorbed
(solid) sample injection. Up to 600 fractions can be collected in
microtiter plates in just 24 hours. Depending on the extract, up
to 30 per cent of all fractions usually contain pure compounds.
The Sepbox 250 is suitable for medium to non-polar compounds
(polar setup optional).
The system is equipped with intuitive, user-friendly software for
method development, process control, data acquisition and data
analysis.
Sepbox 2D-5000
Sepbox 2D technology has even more to offer. The Sepbox 2D-5000
is designed for a larger workload of up to 5,000 milligrams of extract
from natural sources. The automated 2D chromatography
provides up to 576 fractions in 24 hours. The FractionCollector is
equipped with six removable racks, each containing 96 vials with a
maximum capacity of 45 milliliters.
The Sepbox 2D-5000 is also equipped with software for method
development, process control, data acquisition and data analysis.
On average, up to 30 per cent of all fractions contain pure compounds
depending on the extract. the fractions are almost free of
water and buffer from the second SPE step and can be processed
immediately. Optional polar setup is available for polar substances.
The Sepbox 2D-5000 system provides many individual chemical
entities in quantums which can be easily used to elucidate structures,
screen different targets and build a diverse library.
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