Life cycle analysis of β-carotene extraction techniques

Kyriakopoulou, Konstantina; Papadaki, Sofia; Krokida, Magdalini

doi:10.1016/j.jfoodeng.2015.03.008

Cited by 70 publications

(34 citation statements)

References 38 publications

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“…Optimal extraction conditions Response optimum In order to determine the most cost-effective option, it would be interesting to perform a life-cycle cost analysis (LCCA), not only of the sole extraction process as an individual unit operation, but considering the entire supply chain, including the production and harvesting of the plant material, equipment investment, natural resources and energy consumption, and environment hazardous emissions. A comparative LCCA between conventional solvent extraction and innovative methods using microwaves and ultrasounds was performed by Kyriakopoulou, Papadaki, and Krokida (2015), which found UAE the most viable and environmental friendly method to recover β-carotene from microalgae. In our study, the effects of the S/L variable were investigated to obtain more information about the efficiency of each extraction method.…”

Section: Criteriamentioning

confidence: 99%

Optimization of heat- and ultrasound-assisted extraction of anthocyanins from Hibiscus sabdariffa calyces for natural food colorants

et al. 2019

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A B S T R A C THeat-and ultrasound-assisted extraction methods were applied to recover anthocyanins from Hibiscus sabdariffa calyces. The extraction variables, time (t), ethanol proportion (S), and temperature (T) or ultrasonic power (P), were combined in a 5-level experimental design and analysed by response surface methodology for process optimization. The delphinidin-3-O-sambubioside (C1) and cyanidin-3-O-sambubioside (C2) levels were monitored by LC-DAD-ESI/MS n and used as response criteria. The developed models were successfully fitted to the experimental data and used to determine optimal extraction conditions. UAE was the most efficient method yielding 51.76 mg C1 + C2/g R under optimal conditions (t = 26.1 min, P = 296.6 W and S = 39.1% ethanol, v/ v). The dose-response effects of the solid/liquid ratio on the extraction rate were also determined. The anthocyanin levels herein reported are higher than those found in the literature, which support the potential use of H. sabdariffa as a sustainable source of natural colorants with application in different industrial sectors.

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Section: Criteriamentioning

confidence: 99%

Optimization of heat- and ultrasound-assisted extraction of anthocyanins from Hibiscus sabdariffa calyces for natural food colorants

et al. 2019

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“…60,61 The process for β-carotene extraction depends on the market specifications of the desired product. 62 The most efficient form of extraction involves the use of organic solvents, such as n-hexane, acetone, ethanol. 20 However, if a completely natural end product is required, hot jojoba oil or vegetable oil are used for extraction.…”

Section: Technologies Used In the Systemmentioning

confidence: 99%

Improving the economic feasibility of biodiesel production from microalgal biomass via high‐value products coproduction

et al. 2020

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Summary Microalgal biodiesel has emerged as a promising fuel source, but has still not been adopted commercially. One of the several inherent challenges is its high production cost, which mandates the need to develop an integrated process to produce other valuable coproducts economically. This article combines life cycle assessment and preliminary life cycle cost assessment of a proposed biorefinery, in which a high value product, β‐carotene, is coproduced from microalgae with biodiesel. The GaBi 6 environmental management software was employed to investigate the environmental impact associated with the production life cycle. The mass flow rates and the energy consumed in all stages of biodiesel and β‐carotene coproduction for the functional unit of 1 kg of biodiesel were assessed. When the coproduction of β‐carotene was not taken into consideration, the total energy input for a functional unit of 1.0 kg biodiesel/m2/y and the net energy ratio, that is, energy returned on energy invested were estimated to be 128.1 GWh/y and 0.27, respectively. The life cycle cost analysis showed that although the total production cost associated with coproduction of β‐carotene from Dunaliella salina was higher than that of the sole production of biodiesel, it generates a hiked revenue of up to $37 million/y. Over the system lifetime of 10 years, the sole production of biodiesel showed a loss of US$345 million per functional unit, whereas the coproduction of β‐carotene achieved a net profit of US$120.7 million per functional unit. This work clearly showed that the coproduction of β‐carotene with biodiesel from D. salina overcomes the cost‐ineffectiveness resulting from the production of biodiesel alone.

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“…Patented, commercial extraction methods include supercritical CO 2 , biomass saponification followed by solvent extraction, or hot oil extraction . Other extraction methods include edible oil (vegetable oil) extraction, microwaveassisted extraction, ultrasound-assisted extraction (Kyriakopoulou et al 2015), and "milking" D. salina in closed photobioreactors (PBR) with the addition of an organic phase (dodecane) (Kleinegris et al 2009). …”

Section: β-Carotene From Dunaliellamentioning

confidence: 99%

Green microalgae biomolecule separations and recovery

Dixon

Wilken

2018

Bioresour. Bioprocess.

105

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Microalgae biomass has garnered significant attention as a renewable energy feedstock and alternative to petroleumbased fuels. The diverse metabolism of green microalgae species additionally provides opportunities for recovery of products for feed, food, nutraceutical, cosmetic, and biopharmaceutical industries. Recently, the concept of using microalgae as part of a biorefinery model has been adopted in place of refinery methods focused on recovering one target product. This has led to producers exploring co-production of high value and high volume products in an effort to improve process economics. With numerous potential products and applications, the biomass source or specific strain must be carefully selected to accumulate extractable levels of the target molecule(s). It is additionally imperative to understand the morphology and metabolism of the selected strain to cost-effectively manage all stages of commercial production. This review will focus specifically on microalgae in the division of Chlorophyta, or green algae and their extracellular matrices (ECM), potential for commercial products, and finally describe a holistic approach for biomolecule extraction and recovery. Additionally, cell disruption and fractionation methods for recovery of biomolecules for commercial products are highlighted along with an alternative method, aqueous enzymatic processing for multiple biomolecule extraction and recovery from green microalgae. An emphasis is placed on connecting the morphological characteristics of microalgae ECM or organelle membranes to implications on separation and purification technologies.

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Life cycle analysis of β-carotene extraction techniques

Cited by 70 publications

References 38 publications

Optimization of heat- and ultrasound-assisted extraction of anthocyanins from Hibiscus sabdariffa calyces for natural food colorants

Optimization of heat- and ultrasound-assisted extraction of anthocyanins from Hibiscus sabdariffa calyces for natural food colorants

Improving the economic feasibility of biodiesel production from microalgal biomass via high‐value products coproduction

Green microalgae biomolecule separations and recovery

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