What does this research mean for the field?

Corynebacterium glutamicum can produce pure all-trans retinal from agricultural byproducts, specifically molasses, using a two-phase cultivation system. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.ESTABLISHES_NEW_DIRECTION.

What question did this study set out to answer?

The aim is to produce pure retinal using metabolically engineered Corynebacterium glutamicum from agricultural waste.

February 26, 2026Bioresource TechnologyOpen Access

Production of pure all-trans retinal from agricultural byproducts by metabolically engineered Corynebacterium glutamicum using two-phase cultivation

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Authors

WHWenhui HaoKanazawa University SYShungo YamadaKanazawa University YHYoko Hirono-HaraShizuoka University

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Implication

Research demonstrates pure retinal production in Corynebacterium glutamicum, indicating a sustainable bio-based strategy from agricultural byproducts.

Key Points

The aim is to produce pure retinal using metabolically engineered Corynebacterium glutamicum from agricultural waste.
Developed a lycopene producer by blocking its downstream pathway.
Introduced genes converting lycopene to retinal via β-carotene.
Implemented a two-phase cultivation system for extraction and stabilization.
Utilized molasses as a carbon and vitamin source during the cultivation.
Optimal retinal production was achieved at 21 °C with 104.9 mg/L in a 2.5-L jar fermenter.
C. glutamicum produced pure retinal without other retinoids.
The method yielded 30.7 mg/L retinal during shake-flask cultivation.

Cite This Study

Hao et al. (2026) studied this question.

synapsesocial.com/papers/699fe24b95ddcd3a253e619e https://doi.org/10.1016/j.biortech.2026.134264

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Implication

Research demonstrates pure retinal production in Corynebacterium glutamicum, indicating a sustainable bio-based strategy from agricultural byproducts.

Production of pure all-trans retinal from agricultural byproducts by metabolically engineered Corynebacterium glutamicum using two-phase cultivation

Discussion

Member takes

Implication

Key Points

Cite This Study

Production of pure all-trans retinal from agricultural byproducts by metabolically engineered Corynebacterium glutamicum using two-phase cultivation

Discussion

Member takes

Implication

Key Points

Cite This Study

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