Optimizing yeast for high-level production of kaempferol and quercetin.
Flavonoids
Kaempferol
Quercetin
Yeast
Journal
Microbial cell factories
ISSN: 1475-2859
Titre abrégé: Microb Cell Fact
Pays: England
ID NLM: 101139812
Informations de publication
Date de publication:
20 Apr 2023
20 Apr 2023
Historique:
received:
11
03
2023
accepted:
09
04
2023
medline:
21
4
2023
pubmed:
20
4
2023
entrez:
19
04
2023
Statut:
epublish
Résumé
Two important flavonoids, kaempferol and quercetin possess remarkably potent biological impacts on human health. However, their structural complexity and low abundance in nature make both bulk chemical synthesis and extraction from native plants difficult. Therefore microbial production via heterologous expression of plant enzymes can be a safe and sustainable route for their production. Despite several attempts reported in microbial hosts, the production levels of kaempferol and quercetin still stay far behind compared to many other microbial-produced flavonoids. In this study, Saccharomyces cerevisiae was engineered for high production of kaempferol and quercetin in minimal media from glucose. First, the kaempferol biosynthetic pathway was reconstructed via screening various F3H and FLS enzymes. In addition, we demonstrated that amplification of the rate-limiting enzyme AtFLS could reduce the dihydrokaempferol accumulation and improve kaempferol production. Increasing the availability of precursor malonyl-CoA further improved the production of kaempferol and quercetin. Furthermore, the highest amount of 956 mg L De novo biosynthesis of kaempferol and quercetin in yeast was improved through increasing the upstream naringenin biosynthesis and debugging the flux-limiting enzymes together with fed-batch fermentations, up to gram per liter level. Our work provides a promising platform for sustainable and scalable production of kaempferol, quercetin and compounds derived thereof.
Sections du résumé
BACKGROUND
BACKGROUND
Two important flavonoids, kaempferol and quercetin possess remarkably potent biological impacts on human health. However, their structural complexity and low abundance in nature make both bulk chemical synthesis and extraction from native plants difficult. Therefore microbial production via heterologous expression of plant enzymes can be a safe and sustainable route for their production. Despite several attempts reported in microbial hosts, the production levels of kaempferol and quercetin still stay far behind compared to many other microbial-produced flavonoids.
RESULTS
RESULTS
In this study, Saccharomyces cerevisiae was engineered for high production of kaempferol and quercetin in minimal media from glucose. First, the kaempferol biosynthetic pathway was reconstructed via screening various F3H and FLS enzymes. In addition, we demonstrated that amplification of the rate-limiting enzyme AtFLS could reduce the dihydrokaempferol accumulation and improve kaempferol production. Increasing the availability of precursor malonyl-CoA further improved the production of kaempferol and quercetin. Furthermore, the highest amount of 956 mg L
CONCLUSIONS
CONCLUSIONS
De novo biosynthesis of kaempferol and quercetin in yeast was improved through increasing the upstream naringenin biosynthesis and debugging the flux-limiting enzymes together with fed-batch fermentations, up to gram per liter level. Our work provides a promising platform for sustainable and scalable production of kaempferol, quercetin and compounds derived thereof.
Identifiants
pubmed: 37076829
doi: 10.1186/s12934-023-02084-4
pii: 10.1186/s12934-023-02084-4
pmc: PMC10116799
doi:
Substances chimiques
Quercetin
9IKM0I5T1E
Kaempferols
0
Flavonoids
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
74Informations de copyright
© 2023. The Author(s).
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