Reduction of environmental impacts of caffeine extraction from guarana by using ultrasound assistance

Carciochi, Ramiro Ariel; Dieu, Valentin; Vauchel, Peggy; Pradal, Delphine; Dimitrov, Krasimir

doi:10.1016/j.fbp.2021.02.014

Cited by 18 publications

(20 citation statements)

References 24 publications

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“…In fact, several life-cycle assessment (LCA) studies have reported that UAE has lower environmental impacts than conventional extraction techniques. Briefly, the LCA method assess the environmental impacts of a system in various categories like greenhouse effect, human health, acidification, eco-toxicity, among others, by accounting for the use of natural resources, energy, and emissions [152]. Regarding the use of LCA to assess the impact of UAE of BCs from marine algae, few studies have been performed.…”

Section: Environmental Impact Of Uaementioning

confidence: 99%

Benefits and Drawbacks of Ultrasound-Assisted Extraction for the Recovery of Bioactive Compounds from Marine Algae

Carreira-Casais

Otero

García-Pérez

et al. 2021

IJERPH

128

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The increase in life expectancy has led to the appearance of chronic diseases and interest in healthy aging, in turn promoting a growing interest in bioactive compounds (BCs) and functional ingredients. There are certain foods or products rich in functional ingredients, and algae are one of them. Algae consumption has been nominal in Europe until now. However, in recent years, it has grown significantly, partly due to globalization and the adoption of new food trends. With the aim of obtaining BCs from foods, multiple methods have been proposed, ranging from conventional ones, such as maceration or Soxhlet extraction, to more innovative methods, e.g., ultrasound-assisted extraction (UAE). UAE constitutes a novel method, belonging to so-called green chemistry, that enables the extraction of BCs requiring lower amounts of solvent and energy costs, preserving the integrity of such molecules. In recent years, this method has been often used for the extraction of different BCs from a wide range of algae, especially polysaccharides, such as carrageenans and alginate; pigments, including fucoxanthin, chlorophylls, or β-carotene; and phenolic compounds, among others. In this way, the application of UAE to marine algae is an efficient and sustainable strategy to pursue their deep characterization as a new source of BCs, especially suitable for vegetarian and vegan diets.

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Section: Environmental Impact Of Uaementioning

confidence: 99%

Benefits and Drawbacks of Ultrasound-Assisted Extraction for the Recovery of Bioactive Compounds from Marine Algae

Carreira-Casais

Otero

García-Pérez

et al. 2021

IJERPH

128

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“…Caffeine extraction has previously been investigated, focusing mainly on conventional extraction using pure solvents or water‐organic solvent mixtures (Carciochi et al, 2021). However, these methods have some disadvantages, such as longer extraction times and the employment of volatile, toxic, and flammable solvents.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and comparison in caffeine extraction under green conditions: Solvent selection and ultrasound‐assisted process

Jiménez

Torres‐Valenzuela

Mejía‐Arango

2022

J Food Process Engineering

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This study compared the green solvents ethyl acetate and water for caffeine extraction from coffee pills against four traditional solvents (ethanol, methanol, acetone, and acetonitrile). Each solvent's green degree (GD) was calculated using seven environmental and technical performance parameters. The environmental parameters were obtained from the Glaxo Smith Kline guide. Fick's law of effective diffusion was used as the technical parameter. Water was selected as the preferred solvent (among the six evaluated in this study), and its ultrasound‐assisted extraction (UAE) conditions were optimized. The optimal conditions were estimated by ridge analysis. It was found that caffeine extraction was approximately 4.3 times higher in UAE than in conventional solid–liquid processes, and the extraction time was reduced by 96%. Moreover, this process improved caffeine extraction with water. Therefore, the use of UAE over conventional solid extraction and water as an inexpensive, easily accessible, manageable, and environmentally friendly solvent provides extraction alternatives for caffeine in different matrices. Additionally, a methodology is proposed to evaluate the GD for each solvent in the green chemistry framework to achieve sustainable development goals.

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“…A few LCA studies focusing on UAE have highlighted the significance of exploring its environmental performance [32][33][34]. Due to UAE owing to advantages such as high extraction yield, less solvent consumption, low temperature usage, and greater efficiency in terms of energy consumption, UAE is increasingly being employed for extracting valuable compounds from different matrices [35][36][37]. Thus, to establish the potential of the novel technology UAE for producing a high-value-added bioactive from seaweed, this research aims to assess the environmental and economic sustainability of extraction processes.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Environmental and Economic Sustainability of Functional Food Ingredient Production Process

2022

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Development and application of novel technologies in food processing is vital for ensuring the availability of adequate, safe, and convenient food with the desired quality and functional properties. Environmental and economic sustainability of technologies is essential prior to their application in the food processing sector. The objective of this research is to determine the environmental and economic feasibility of ultrasound-assisted extraction (UAE) for recovering functional food ingredients from seaweed. Experimental data is used to conduct a life cycle assessment (LCA) to investigate the environmental performance with a functional unit (FU) of obtaining 1 g of extracted polyphenols, measured as gallic acid equivalents (mg GAE)/g seaweed. A life cycle impact assessment is performed with ReCiPe 2016 at midpoint. The cost of manufacturing (COM) of phenolic-rich extracts (as functional ingredient, bioactive, or nutraceutical) is estimated using time-driven activity-based costing (TDABC). The environmental profile findings show that across all categories, the UAE has considerably lower impacts than the conventional method, with electricity as the most important impact contributor, followed by solvent production. An economic assessment estimates the COM over a one-year period at a large scale using the UAE to be EUR 1,200,304, EUR 2,368,440, and EUR 4,623,290 for extraction vessel capacities of 0.05, 0.1, and 0.15 m3, respectively. Raw materials (including the type of raw material) and operational labour costs are the primary contributors to the COM. The findings thus present evidence to support the adoption of an environmentally and economically viable technology for functional ingredient production.

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Reduction of environmental impacts of caffeine extraction from guarana by using ultrasound assistance

Cited by 18 publications

References 24 publications

Benefits and Drawbacks of Ultrasound-Assisted Extraction for the Recovery of Bioactive Compounds from Marine Algae

Benefits and Drawbacks of Ultrasound-Assisted Extraction for the Recovery of Bioactive Compounds from Marine Algae

Evaluation and comparison in caffeine extraction under green conditions: Solvent selection and ultrasound‐assisted process

Assessing the Environmental and Economic Sustainability of Functional Food Ingredient Production Process

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