Production of mushroom spawn
AssigneeH. J. Heinz Company
InventorJoseph Green
Life of this patent
Estimating the term…
Abstract
A sterilizable bag for use in the production of mushroom spawn has at least a panel of microporous plastics sheet material, for example microporous polypropylene or polyethylene, which is a good bacterial filter. In use the bag is filled with a particulate nutrient material, sterilized, inoculated with mycelium, and then stored under incubation conditions for growth of the mycelium through the nutrient material.
Claims20
A sterilizable bag, comprising a sheet of transparent plastics sheet material having a central perforated zone which is lined with a panel of microporous plastics sheet material which is a good bacterial filter and permits passage of oxygen and carbon dioxide, said sheet being folded over with opposite edges seamed together and said zone located in one wall of the bag.
A sterilizable bag for carrying a particulate nutrient material for growing mycelium subsequent to inoculation of the nutrient material with mycelium and upon storing of the bag under mycelium incubation conditions, said sterilizable bag including opposed walls formed of transparent plastics sheet material, at least a zone of which is perforated and said perforated zone being lined internally with a panel of microporous sheet material which is a good bacterial filter and permits passage of oxygen and carbon dioxide.
A sterilizable bag for carrying a particulate nutrient material for growing mycelium subsequent to inoculation of the nutrient material with mycelium and storage of the bag under mycelium incubation conditions, said sterilizable bag comprising one wall of transparent plastic sheet material and another opposing wall of perforated transparent plastic sheet material, said perforated wall being lined internally with a panel of microporous plastic sheet material which is a good bacterial filter and permits passage of oxygen and carbon dioxide.
A method of producing mushroom spawn comprising:
- placing in a sterilizable bag having opposed sealed walls formed of transparent plastic material at least a zone of which is perforated and said zone is lined internally with a panel of microporous plastics sheet material which is a good bacterial filter and permits passage of oxygen and carbon dioxide,
- a particulate nutrient material for growing mycelium,
- sterilizing the bag,
- inoculating the nutrient material with mycelium, and
- storing the bag under mycelium incubation conditions, with said microporous panel exposed, for a time permitting the mycelium to grow through the nutrient material with intake of oxygen and expulsion of carbon dioxide through the panel.
Dependencies are inferred from the claim text.