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Burcon granted two U.S. patents

VANCOUVER, Feb. 23 /CNW/ - Burcon NutraScience Corporation (TSX-V: BU)
announces today that it has been granted a U.S. patent for a major component
of its protein extraction and purification technology. United States Patent
Number 6,992,173 B2 - "Protein Extraction from Canola Oil Seed Meal" - covers
an improved process for the recovery of protein from canola oil seed meal and
other oil seed meals. Both the amount and quality of protein isolate are
improved through processing modifications to the input oilseed meal instead of
the use of conventional meal.

Burcon is also pleased to announce that it has been granted a U.S. patent
over the functional attributes of blends of its canola protein isolates
Puratein(R) and Supertein(TM). United States Patent Number 7,001,990 - "Canola
Protein Isolate Functionality II" - covers a protein isolate, obtained from
canola oil seed meal, as a functional component in food compositions. One
example is the use of these isolates as an emulsifying agent in salad

Including its two existing U.S. patents, Burcon now holds a total of four
granted U.S. patents over canola protein processing technology and canola
protein isolate product uses.

Burcon has filed for patent applications for nineteen additional
inventions. The applications, which are currently being reviewed by the United
States Patent and Trademark Office, can be broadly grouped into three areas.
Firstly, patent applications have been made over further novel processing
steps for the extraction and purification of proteins from oilseed meals
including canola meal. Secondly, Burcon has filed for patents over the uses of
Puratein(R) and Supertein(TM), for example as functional food ingredients.
Lastly, Burcon has filed for patents over the "signature characteristics" of
its products including its canola proteins Puratein(R) and Supertein(TM).

In addition to the U.S. patent applications, Burcon has filed
applications for most of its inventions internationally under the Patent
Cooperation Treaty of the World Intellectual Property Organization in some 35
countries including the European Union, Japan, China, India, Australia, New
Zealand and Canada.

"Over the past six years, our team has invested a tremendous amount of
resources, both financial and human, into the development of numerous
innovations that strengthen our protein extraction technology," stated Johann
F. Tergesen, Burcon's President & COO who added, "The proteins we are now able
to produce have the potential to open up some exciting large-market food and
beverage applications and our intellectual property portfolio will be the key
to protecting that commercial opportunity. Intellectual property is our
principal asset and as such we will continue to pursue additional patents

In September 2003 Burcon entered into a license and development agreement
with Archer Daniels Midland ("ADM"). Under the terms of the agreement, ADM can
commercially exploit Burcon's intellectual property for the extraction and
purification of canola protein isolates - Puratein(R) and Supertein(TM) - in
all geographic regions and for all uses. The two additional U.S. patents now
granted as announced above were specifically referenced in the September 2003
license and development agreement.

About Burcon NutraScience
Burcon is a research and development company developing a portfolio of
composition, application, and process patents around its plant protein
extraction and purification technology. The goal of Burcon's research is to
develop its patented process to utilize inexpensive oilseed meals for the
production of purified plant proteins that exhibit valuable nutritional,
functional or nutraceutical profiles. Burcon, in conjunction with Archer
Daniels Midland, is currently focusing its efforts on developing the world's
first commercial canola proteins, Puratein(R) and Supertein(TM). Canola,
recognized for its nutritional qualities, is the second-largest oilseed crop
in the world after soybeans. Burcon's goal is to develop Puratein and
Supertein to participate with soy, dairy, and egg proteins in the expanding
multi-billion-dollar protein ingredient market, with potential uses in
prepared foods, nutritional supplements, and personal care products.

The TSX Venture Exchange has not reviewed and does not accept
responsibility for the adequacy of the content of the information contained
herein. This press release contains forward-looking statements that involve
risks and uncertainties. These forward-looking statements relate to, among
other things, plans and timing for the introduction or enhancement of our
products, statements about future market conditions, supply and demand
conditions, and other expectations, intentions and plans contained in this
press release that are not historical fact. Our expectations regarding the
prospect for future success depend upon our ability to develop and sell
products, which we do not produce today and cannot be sold without further
research and development. When used in this press release, the words
"goal,""intend," "believes" and "potential" and similar expressions, generally
identify forward-looking statements. These statements reflect our current
expectations. They are subject to a number of risks and uncertainties. In
light of the many risks and uncertainties surrounding the development of a
source of protein from canola meal, you should understand that we cannot
assure you that the forward looking statements contained in this press release
will be realized.

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