Environmental life cycle assessment of cascade valorisation strategies of South African macroalga Ecklonia maxima using green extraction technologies

Zhang, Xueqian; Border, Allistair; Goosen, Neill J.; Thomsen, Marianne

doi:10.1016/j.algal.2021.102348

Cited by 21 publications

(7 citation statements)

References 41 publications

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“…The advantages of PLE regarding solvent and energy consumption present an environmentally friendly strategy, as demonstrated by several LCA studies [49][50][51][52]. However, the utilization of green PLE technology for microalgae cells and the application of LCA to these processes are still limited.…”

Section: Pressurized Liquid Extraction (Ple)mentioning

confidence: 99%

Sustainable Point of View: Life Cycle Analysis for Green Extraction Technologies

Aslanbay Guler,

Tepe,

Imamoglu

2024

ChemBioEng Reviews

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Microalgae have emerged as a promising source of renewable energy and natural bioproducts since they show high biomass productivity, offer carbon dioxide fixation, and exhibit a rich content of compounds. Recent efforts have focused on green extraction technologies that utilize green solvents to further promote sustainability and minimize the environmental impact of the microalgal process. At this point, life cycle analysis (LCA) provides valuable insights into the environmental impacts of specific products and techniques. A comprehensive overview of the life cycle environmental and energy assessments conducted for the extraction of metabolites from microalgae is presented. Special attention is given to using green extraction technologies, i.e., supercritical fluid extraction, pressurized liquid extraction, microwave‐assisted extraction, ultrasound‐assisted extraction, and pulsed‐electric field extraction, and solvents to ensure sustainability. Additionally, the main principles, historical development, tools, and challenges of LCA are discussed. By addressing these aspects, the paper attracts attention to the environmental impacts associated with green extraction techniques for obtaining microalgal metabolites.

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Section: Pressurized Liquid Extraction (Ple)mentioning

confidence: 99%

Sustainable Point of View: Life Cycle Analysis for Green Extraction Technologies

Aslanbay Guler,

Tepe,

Imamoglu

2024

ChemBioEng Reviews

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“…29,30 The global market size by sales volume for fucoidan and laminarin is estimated at 17-18 t per year and 25-26 t per year, projected to grow at 3.8% and 8.7% compound annual growth rate, respectively. 31 Thus, the high value and growing markets make brown algae valorization a promising business case.…”

Section: Beach-cast Brown Algaementioning

confidence: 99%

Extraction of bioactive compounds from beach-cast brown algae: a review on accelerated solvent extraction and subcritical water extraction

Zhang,

Hawboldt,

MacQuarrie

2024

RSC Sustain.

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“…Hence, this paves the way in converting the food-grade i-carrageenan into L-LA which has higher commercial value and is considered as an alluring investment option from environmental, social, and economic points of view for Malaysia. Moreover, the sustainability of red macroalgae biorefineries had been assessed in various LCA [25][26][27].…”

Section: Utilization Of Macroalgae As Feedstock For Third-generation ...mentioning

confidence: 99%

Emerging technologies for conversion of sustainable macroalgal carrageenan biomass into L-lactic acid: A state-of-the-art review

et al. 2023

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The environmental awareness and concerns (plastic pollution) worldwide have driven the development of sustainable and environmentally friendly biopolymer derived from renewable materials. Biopolymers, especially L-lactic acid (L-LA) have played a crucial role in manufacturing polylactic acid, a biodegradable thermoplastic. Recently, L-LA production from non-edible macroalgal biomass has gained immense attraction due to it offers the simplest saccharification process for the biorefinery route. However, the commercialization of macroalgal-based L-LA is still limited due to high production costs. This paper has comprehensively reviewed the potential and development of third-generation feedstock for L-LA production, including significant technological barriers to be overcome for potential commercialization purposes. Then, an insight into the state-of-the-art hydrolysis and fermentation technologies using macroalgae as feedstock are also deliberated in detail. Furthermore, this review provides a conceivable picture of macroalgae-based L-LA biorefinery and future research directions that can be served as an important guideline for scientists, policymakers, and industrial players.

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Environmental life cycle assessment of cascade valorisation strategies of South African macroalga Ecklonia maxima using green extraction technologies

Cited by 21 publications

References 41 publications

Sustainable Point of View: Life Cycle Analysis for Green Extraction Technologies

Sustainable Point of View: Life Cycle Analysis for Green Extraction Technologies

Extraction of bioactive compounds from beach-cast brown algae: a review on accelerated solvent extraction and subcritical water extraction

Emerging technologies for conversion of sustainable macroalgal carrageenan biomass into L-lactic acid: A state-of-the-art review

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