Pectin culture media and method
First Claim
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1. A method for preparing a gelled biological growth medium having a pH from about 4 to about 9 in a culture growth container which comprises the steps of:
- a. providing a culture growth container,b. preparing a liquid growth medium including between about ten and about thirty grams per liter of growth medium of a low methoxyl pectin material having less than about seven percent methoxyl content to gel the growth medium as the sole gelling agent;
c. introducing a predetermined amount of calcium ions into an absorbent support material and placing the absorbent support material into the culture growth container; and
d. combining the growth medium and the calcium ions in said culture growth container to produce gelling of the growth medium.
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Abstract
A method for preparing a gelled biological growth medium in a culture growth container which comprises combining a liquid growth medium including low methoxyl pectin and a multivalent metal cation material in the culture growth container. Preferably, the cation material is located on a support material, such as a filter pad or paper, and the liquid growth medium including the low methoxyl pectin material is poured over the support material while in the culture growth container.
33 Citations
7 Claims
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1. A method for preparing a gelled biological growth medium having a pH from about 4 to about 9 in a culture growth container which comprises the steps of:
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a. providing a culture growth container, b. preparing a liquid growth medium including between about ten and about thirty grams per liter of growth medium of a low methoxyl pectin material having less than about seven percent methoxyl content to gel the growth medium as the sole gelling agent; c. introducing a predetermined amount of calcium ions into an absorbent support material and placing the absorbent support material into the culture growth container; and d. combining the growth medium and the calcium ions in said culture growth container to produce gelling of the growth medium. - View Dependent Claims (2)
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3. A method for preparing a gelled biological growth medium in a culture growth container which comprises the steps of:
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a. providing a culture growth container, said container including therein an absorbent support material containing calcium ions; b. providing a liquid growth medium having a pH from about 4 to about 9 including between about ten and about thirty grams per liter of growth medium of a low methoxyl pectin material having less than about seven percent methoxyl content as the sole gelling agent for gelling the growth medium; and c. adding the growth medium to the culture growth container in an amount to provide gelling of the growth medium upon contact of the calcium ions with the pectin. - View Dependent Claims (4, 5, 6, 7)
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Specification