Lentinula edodes GNA01 Strain Hybridization for Year-Round Production

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Solution Overview

Problem

Conventional shiitake mushroom variants have limitations such as a single crop period, high breeding expenses, and inferior properties compared to Japanese and Chinese variants, necessitating the development of a superior novel strain with enhanced characteristics like morphology, taste, storage longevity, and temperature resistance.

Innovation Solution

A novel shiitake mushroom strain, Lentinula edodes GNA01, is developed with a spherical shape, sweet taste, harder flesh, white blooming appearance, and resistance to high and low temperatures, achieved through hybridization of monokaryotic strains and optimized cultivation conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional shiitake mushroom variants are cultivated, then they can be produced, but they have limited crop periods and inferior properties compared to Japanese and Chinese variants

Engineering Contradiction:

Improvecrop period frequencyVSAvoidmushroom property quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies parameter changes by developing a novel strain (Lentinula edodes GNA01) with altered genetic parameters through hybridization, resulting in improved fruiting frequency and superior mushroom properties including enhanced taste, texture, and storage longevity compared to conventional variants

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If breeding studies on shiitake mushrooms are conducted, then new variants can be developed, but high expenses are required

Engineering Contradiction:

Improvevariant diversityVSAvoidbreeding expense

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent employs copying by utilizing spore isolation and hybridization techniques to create new variants, which is a more cost-effective approach compared to traditional breeding methods, allowing development of superior strains without requiring excessive financial resources

Inventive Principle:

Principle #26Copying

3Duration of action of stationary object

If shiitake mushrooms are stored, then they can be preserved, but their storage life is limited

Engineering Contradiction:

Improvestorage lifeVSAvoidquality maintenance

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The novel strain GNA01 exhibits parameter changes in its biological characteristics, including enhanced storage longevity and quality maintenance properties, allowing the mushrooms to be preserved for extended periods while maintaining superior taste, texture, and nutritional value

Inventive Principle:

Principle #35Parameter changes

4Productivity

If conventional shiitake mushrooms are cultivated, then they can be produced, but they lack resistance to high and low temperatures limiting year-round production

Engineering Contradiction:

Improveyear-round production capabilityVSAvoidtemperature sensitivity

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent achieves parameter changes in the strain's thermal tolerance through hybridization, resulting in GNA01 possessing resistance to both high and low temperatures, enabling year-round cultivation and production regardless of seasonal temperature variations

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9565829B2Strain of <i>Lentinula edodes </i>GNA01

Publication Date: 2017.02.14 DEWELGLOBAL CO LTD

AI summary

Disclosed is a novel shiitake strain Lentinula edodes (Berk.) Pegler GNA01 (accession No: KCCM11135P) and a fruit body produced by culturing the same. The fruit body exhibits a new morphology and a new taste.