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- Title
Chlorella and Spirulina cultivated in dairy effluent supplemented with L-tryptophan: production of indoleacetic acid and agricultural bioproducts.
- Authors
Cruz, Camila Gonzales; da Rosa, Ana Priscila Centeno; Costa, Jorge Alberto Vieira
- Abstract
This study aimed to cultivate the microalgae Chlorella fusca LEB 111 and Spirulina sp. LEB 18 in dairy effluent supplemented with L-tryptophan to produce agricultural biostimulants rich in indoleacetic acid. After microalgae cultivation, treatments were performed on tomato seeds using biomass extracts or supernatant of cultures. The results indicated the potential of L-tryptophan supplementation in cultivating C. fusca and Spirulina in dairy effluent for an increase of 44.5% and 135.1% of the indoleacetic acid concentration. The treatments carried out on tomato seeds using biomass extracts or supernatant from microalgae cultures resulted in germination parameters of tomato seeds superior to the control treatment (distilled water), obtaining up to 100% of seed germination from the supernatant of the cultivation of C. fusca with 100% dairy effluent supplemented with L-tryptophan and from the use of biomass extract from the Spirulina cultivation condition with 25% dairy effluent supplemented with L-tryptophan, confirming the potential of using microalgae for this purpose.
- Subjects
INDOLEACETIC acid; AGRICULTURE; TRYPTOPHAN; SPIRULINA; BIOLOGICAL products; CHLORELLA vulgaris; DUNALIELLA
- Publication
Clean Technologies & Environmental Policy, 2024, Vol 26, Issue 6, p1975
- ISSN
1618-954X
- Publication type
Article
- DOI
10.1007/s10098-023-02723-9