ArticleBiotechnology for biofuels and bioproducts2022
Effects of C/N ratio on the growth and protein accumulation of heterotrophic Chlorella in broken rice hydrolysate.
Article in Biotechnology for biofuels and bioproducts, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 59 citations in OpenAlex.
- Bacillus amyloliquefaciens MU2 fermentation enhances protein extraction and sensory quality of Chlorella pyrenoidosa.NPJ science of food · 2026Article
- Effect of Marine Microalgae Biomass (Life (Basel, Switzerland) · 2025Article
- MicroalgaFoods (Basel, Switzerland) · 2025Article
- Photosynthesizing carbonate/nitrate into Chlorococcum humicola biomass for biodiesel and Bacillus coagulans-based biohydrogen production.Microbial cell factories · 2024Article
- Valorisation of industrial hemp (Environmental science and ecotechnology · 2024Article
- Comparison of Different Pretreatment Processes Envisaging the Potential Use of Food Waste as Microalgae Substrate.Foods (Basel, Switzerland) · 2024Article
- Optimization of Heterotrophic Culture Conditions for the MicroalgaeMarine drugs · 2023Article
- Variability in Macro- and Micronutrients of 15 Rarely Researched Microalgae.Marine drugs · 2023Article
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Authors and funding
11 authors at 6 institutions in 3 countries.
Funding
Abstract
backgroundMicroalgae protein is considered as a sustainable alternative to animal protein in the future. Using waste for microalgal culture can upgrade low-value raw materials into high-value products, helping to offset the cost of microalgal protein production. In this study we explored the feasibility of using microalgae heterotrophic fermentation to convert broken rice hydrolysate (BRH) into protein.
resultsThe results showed that the increase of BRH supplemental ratio was beneficial to the increase of biomass production but not beneficial to the increase of intracellular protein content. To further improve protein production, the effect of C/N ratio on intracellular protein accumulation was studied. It was found that low C/N ratio was beneficial to the synthesis of glutamate in microalgae cells, which in turn promoted the anabolism of other amino acids and further the protein. When the C/N ratio was 12:1, the biomass productivity and protein content could reach a higher level, which were 0.90 g/L/day and 61.56%, respectively. The obtained Chlorella vulgaris biomass was rich in essential amino acids (41.80%), the essential amino acid index was as high as 89.07, and the lysine content could reach up to 4.05 g/100 g.
conclusionsThis study provides a theoretical basis and guidance for using Chlorella vulgaris as an industrial fermentation platform to convert broken rice into products with high nutritional value.
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