High-Value Coproducts from Algae—An Innovational Way to Deal with Advance Algal Industry

Mehta, Preeti; Singh, Deepti; Saxena, Rohit; Rani, Rekha; Puri, S.K.; Mathur, Anshu S.

doi:10.1007/978-981-10-7431-8_15

Cited by 43 publications

(16 citation statements)

References 43 publications

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“…Pigments from natural sources, such as cyanobacteria, have been seen with a great interest for industrial application due to their bioactive potential and their green product label (Mehta et al, 2018). Three natural pigments from microalgae and cyanobacteria are currently known as successful cases for market applications: phycocyanin from the cyanobacterium Arthrospira platensis (Spirulina), β-carotene from the microalgae Dunaliella salina and astaxanthin from Haematococcus pluvialis (Dufossé et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Continuous pressurized extraction versus electric fields-assisted extraction of cyanobacterial pigments

Pagels

Pereira

Amaro

et al. 2021

Journal of Biotechnology

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Cyanobacteria pigments, in special carotenoids and phycobiliproteins, are usually used in industry as raw extracts, although there is still no standard methodology for their extraction. For the co-extraction of carotenoids and phycobiliproteins from the marine cyanobacterium Cyanobium sp., a continuous pressurized solvent extraction (CPSE) system and an electric fields-assisted extraction system based in ohmic heating were optimized using Central Composite Designs, with three factors each: time (t), temperature (T) and, flow (f) for CPSE; and time, temperature and frequency (F) for ohmic heating. The content of pigments and the antioxidant capacity of extracts were evaluated. All tested factors seem to influence the extraction of pigments in different ways: a high temperature (70 • C) had a positive impact on the extraction rate in both methods, while the influence of time depended on the extraction principle. Flow and frequency affected directly the extraction efficiency and these methods are indeed suitable for cyanobacterial pigments extraction, achieving good extraction results. Optimal conditions for co-extraction of carotenoids and phycobiliproteins in CPSE were T = 70 • C, t = 20 min and f = 1.5 mL min − 1 , and for ohmic heating they were T = 70 • C, t = 5 min and F = 20 kHz. Both, CPSE and ohmic heating systems allowed obtaining better extraction yields when compared with a previously optimized extraction method (homogenization), used here as a reference. However, ohmic heating was the best methodology for pigments co-extraction from Cyanobium sp.

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Section: Introductionmentioning

confidence: 99%

Continuous pressurized extraction versus electric fields-assisted extraction of cyanobacterial pigments

Pagels

Pereira

Amaro

et al. 2021

Journal of Biotechnology

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“…Microalgae (and some cyanobacteria) are capable of producing great amounts of lipids, proteins, and carbohydrates, which are the most significant substances in the main composition of products of biobased origin such as bioplastics, biopolymers, and biobased polyurethane [ 9 , 10 ]. In the most recent years, microalgal biomass, used either as biomass directly or as a feedstock for secondary processes, has been noticed as a potential source of materials improving several fields, including bioplastic production [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…The commercial field of microalgae is indeed showing its economic importance. An example is the price of products such as lactic acid, butanol, and PHAs, reaching values of around USD 1300–7000 per ton [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Microalgae as Contributors to Produce Biopolymers

et al. 2021

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Biopolymers are very favorable materials produced by living organisms, with interesting properties such as biodegradability, renewability, and biocompatibility. Biopolymers have been recently considered to compete with fossil-based polymeric materials, which rase several environmental concerns. Biobased plastics are receiving growing interest for many applications including electronics, medical devices, food packaging, and energy. Biopolymers can be produced from biological sources such as plants, animals, agricultural wastes, and microbes. Studies suggest that microalgae and cyanobacteria are two of the promising sources of polyhydroxyalkanoates (PHAs), cellulose, carbohydrates (particularly starch), and proteins, as the major components of microalgae (and of certain cyanobacteria) for producing bioplastics. This review aims to summarize the potential of microalgal PHAs, polysaccharides, and proteins for bioplastic production. The findings of this review give insight into current knowledge and future direction in microalgal-based bioplastic production considering a circular economy approach. The current review is divided into three main topics, namely (i) the analysis of the main types and properties of bioplastic monomers, blends, and composites; (ii) the cultivation process to optimize the microalgae growth and accumulation of important biobased compounds to produce bioplastics; and (iii) a critical analysis of the future perspectives on the field.

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“…Microalgae is actually considered as a promising biocatalysts to be implemented in the increasing eld of "White Biotechnology" mainly to support the production of food, feed, ne chemicals, and diverse "green energy carriers" (Koller et al 2014). Algae can biosynthesize an awesome variety of metabolites that could be used as biomaterials with an important potential applications in various industrial sectors (Mehta et al, 2018). According to their high market values, pigments from microalgae have received a particular interest due to its high potential for commercialization despite the need to use new systems for its extraction and puri cation to reduce its actual high production cost (Ventura et al 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, chlorophyll and carotenoids from microalgae are well established, and its global market has been expanding because of its wide application in human healthcare, food industries, and cosmetics. Likewise, carotenoids are commercially available in several forms including mainly beta-carotene, lutein, lycopene, astaxanthin, zeaxanthin (Mehta et al,2018 ; da Silva Ferreira and Sant'Anna 2017). Moreover, the addition of pure carotenoids is a common practice as sh feed for some aquaculture species since it is known to improve carcass and antioxidant capacity (Rosas et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Enhancing Microalgae Cultivation using Biowastes as Growth Media for High Added-Value Co-Products Generation

Amouri¹,

Kaidi²,

Ounnar³

et al. 2021

Preprint

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This paper aims to study a new growth media using cheese whey and drainage water from agriculture for indigenous microalgae cultivation for value-added product generation. In this context, four combinations are studied beside the BG11 as reference, where BG11/Cheese whey (60/40, %v/v), drainage water 100%, drainage water/Cheese whey (60/40, % v/v), and Cheese whey 100 % have been used. Moreover, investigated parameters are biomass dry weight, pH variation, total chlorophyll and carotenoid content. Results showed that used growth media have a significant impact on microaglae culture, particularly in terms of cells growth, pigment content and pH variation. Moreover, the mixture BG11/Cheese whey (60/40, %v/v) shows the best impact for total chlorophylls and carotenoids content. Likewise, the mixture cheese whey/drainage water (60/40, %v/v) presents a positive effect on pigments content. The use of cheese whey and drainage water lead to enhance the biomass and pigment production. This study showed that using agro-industrial C-rich wastes and drainage water enhanced microalgae biomass and pigment content, thus contributing to pollution abatement. This will contribute to both reducing the cost of production and resources recycling.

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High-Value Coproducts from Algae—An Innovational Way to Deal with Advance Algal Industry

Cited by 43 publications

References 43 publications

Continuous pressurized extraction versus electric fields-assisted extraction of cyanobacterial pigments

Continuous pressurized extraction versus electric fields-assisted extraction of cyanobacterial pigments

Microalgae as Contributors to Produce Biopolymers

Enhancing Microalgae Cultivation using Biowastes as Growth Media for High Added-Value Co-Products Generation

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