Impact of microalgal cell wall biology on downstream processing and nutrient removal for fuels and value-added products

Jothibasu, K.; Muniraj, Iniya Kumar; Jayakumar, Tharunkumar; Ray, Bobita; Dhar, Dolly Wattal; Karthikeyan, Subburamu; Rakesh, Suchitra

doi:10.1016/j.bej.2022.108642

Cited by 24 publications

(6 citation statements)

References 185 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cell walls of Chlorella are composed of a cellulosic inner wall and an outer hydrophobic algaenan layer. 36,37 PNIPAM-co-BA undergoes a phase transition from hydrated coils to dehydrated globules when heated above the LCST. 38 Therefore, the hydrophobic interaction between PNIPAM-co-BA and the cell wall of Chlorella at 30 °C should mainly contribute to the positive entropy DS°, resulting in the self-assembly of SSLM to form GSLM.…”

Section: Resultsmentioning

confidence: 99%

Temperature modulated sustainable on/off photosynthesis switching of microalgae towards hydrogen evolution

Li,

Xu,

Lin

et al. 2024

Chem. Sci.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Temperature modulated sustainable on/off photosynthesis switching of microalgae towards hydrogen evolution

Li,

Xu,

Lin

et al. 2024

Chem. Sci.

View full text Add to dashboard Cite

show abstract

“…Desmodesmus, Scenedesmus, and Tetradesmus are genera included in the Scenedesmaceae family-a green microalgal family ubiquitously found in freshwater environments like the Chlorellaceae family. They have been extensively studied as tools for wastewater treatment [43,44] and biodiesel production [45][46][47]. Alkaliphilic Scenedesmus sp.…”

Section: Phylogenetic Identification Of the Microalgal Strainsmentioning

confidence: 99%

Biogas Upgrading by Wild Alkaliphilic Microalgae and the Application Potential of Their Biomass in the Carbon Capture and Utilization Technology

Kikuchi,

Kanai,

Sugiyama

et al. 2024

Fermentation

View full text Add to dashboard Cite

Although biogas is a renewable energy source alternative to natural gas, it contains approximately 40 vol% CO2 and, hence, a low calorific value. The sequestration of CO2 from biogas is, therefore, essential before its widespread use. As CO2 can be easily solubilized as carbonate and bicarbonate in alkaline water, in this study, we isolated and characterized alkaliphilic wild microalgae that grow under high-level CO2 conditions and evaluated their application potential in CO2-removal from biogas. For this purpose, freshwater samples were enriched with 10 vol% CO2 and an alkaline culture medium (pH 9.0), wherein almost free CO2 was converted to carbonate and bicarbonate to yield alkaliphilic and high-level CO2-tolerant microalgae. Ten microalgal strains of Micractinium, Chlorella, Scenedesmus/Tetradesmus, or Desmodesmus spp. were isolated, some of which demonstrated good growth even under conditions of >pH 10 and >30 vol% CO2. All algal strains grew well through fixing biogas-derived CO2 in a vial-scale biogas upgrading experiment, which reduced the CO2 level in biogas to an undetectable level. These strains yielded antioxidant carotenoids, including lutein, astaxanthin, zeaxanthin, and β-carotene, particularly rich in lutein (up to 7.3 mg/g dry cells). In addition, these strains contained essential amino acids, accounting for 42.9 mol% of the total amino acids on average, and they were rich in unsaturated fatty acids (comprising 62.2 wt% of total fatty acids). The present study identified strains that can contribute to biogas upgrading technology, and the present findings suggest that their biomass can serve as useful raw material across the food, nutraceutical, and feed industries.

show abstract

“…The diverse range of biochemical characteristics of microalgae plays also a significant role in tailoring the overall DSP. Therefore, these differences in the localization (e.g., intra-or extracellular polysaccharides) and content of the compounds of interest necessitate the development of specialized processes for different genera [104]. Thus, the following section aims to discuss the main steps involved in DSP applied for microalgae.…”

Section: Downstream Processingmentioning

confidence: 99%

Microalgae as Multiproduct Cell Factories

Makay,

Grewe

2023

Microalgae - Current and Potential Applications

View full text Add to dashboard Cite

Microalgae are a highly diverse group of microorganisms that are currently produced at industrial scale at comparably high specific costs for various applications (e.g., food supplements and cosmetics). Although a multitude of high-value, market-relevant products, such as fucoxanthin and eicosapentaenoic acid (EPA), are present in the biomass, currently single-value chain products are produced and marketed, limiting profitability of microalgal biotechnology, as well as potential application. The chapter provides an overview on microalgae-based lead compounds and their bioactivities providing the basis for the multiproduct cell factory concept. Furthermore, a general overview of current downstream processing (DSP) methods is given that are currently used for microalgal biorefineries at industrial scale. The latest advancements in the research and development of multi-products are showcased, highlighting its role in facilitating the microalgal bioeconomy.

show abstract

Impact of microalgal cell wall biology on downstream processing and nutrient removal for fuels and value-added products

Cited by 24 publications

References 185 publications

Temperature modulated sustainable on/off photosynthesis switching of microalgae towards hydrogen evolution

Temperature modulated sustainable on/off photosynthesis switching of microalgae towards hydrogen evolution

Biogas Upgrading by Wild Alkaliphilic Microalgae and the Application Potential of Their Biomass in the Carbon Capture and Utilization Technology

Microalgae as Multiproduct Cell Factories

Contact Info

Product

Resources

About