Extraction Kinetics and Anethole Content of Fennel (<i>Foeniculum vulgare</i>) and Anise Seed (<i>Pimpinella anisum</i>) Extracts Obtained by Soxhlet, Ultrasound, Percolation, Centrifugation, and Steam Distillation

Leal, Patrícia F.; Almeida, Talyta S.; Prado, Glaucia H. C.; Prado, Juliana M.; Meireles, M. Ângela A.

doi:10.1080/01496395.2011.572575

Cited by 26 publications

(13 citation statements)

References 47 publications

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“…The high extraction yield obtained from FPR could be due to the richness in high molecular weight polysaccharide as reported by Taie et al [28]. On the other hand, Leal et al [29] has estimated the aqueous extraction yield of FPR by 16.8%, while it exceeded 45% in this study. The different FPR yields can be explained by the differences in extraction procedures such as temperature, extraction time, and ratios.…”

Section: Solvent Choice and Extraction Yield Determinationcontrasting

confidence: 47%

Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

Chami

Alwanney

Pascali

et al. 2014

Chem. Biol. Technol. Agric.

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Background: Recently, a novel concept 'bio-effectors' rose on to describe a group of products that are able to improve plant performance rather than fertilizers. Agro-food processing residues and by-products potentially represent important sources of bio-effectors but they are currently not properly taken in consideration. To fulfill this gap, in these study, three food processing by-products: (i) brewers' spent grain, (ii) fennel processing residues, and (iii) lemon processing residues were chosen as bio-effector candidates. Raw materials were chemically characterized, and green extraction methodology was optimized by using water, ethanol, and their mixture based on the extraction yields. Aqueous extracts were used for seed germination bioassays on Lepidium sativum seeds to evaluate their potential bioactivities. Thereafter, the extracts were chemically characterized and metabolites were detected by 1D and 2D NMR spectroscopy. Results: Results are summarized as follows: (i) raw materials showed an interesting nutritional content; (ii) aqueous extraction resulted higher yield more than other used solvent; (iii) at high solvent extraction ratio, aqueous extracts were not phytotoxic but enhanced seed germination and root elongation; (iv) all aqueous extracts are differently rich in nutrients, amino-acids, sugars, and other low molecular weight molecule compounds.

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Section: Solvent Choice and Extraction Yield Determinationcontrasting

confidence: 47%

Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

Chami

Alwanney

Pascali

et al. 2014

Chem. Biol. Technol. Agric.

View full text Add to dashboard Cite

show abstract

“…This could be due to the different mixing mechanisms and rates applied during the different extraction methods. Shaking uses a slower mixing rate compared to the high speed mixing of a vortexer, while a centrifuge uses a relatively strong centrifugal force to separate phases [35]. This suggests that intensive mixing is required to increase the mass transfer in the system, and also leads to equilibrium being reached at shorter time scales.…”

Section: Extraction Time and Agitation Methodsmentioning

confidence: 99%

“…It was generally determined following a compromise between technical considerations and physicochemical properties [34,35]. To achieve the goal of efficient extraction with a minimum volume of solvent, this solvent must satisfy certain requirements, including a great affinity towards the solute.…”

Section: Choice Of Solventsmentioning

confidence: 99%

Development of a liquid-liquid extraction method of resveratrol from cell culture media using solubility parameters

Balkhi

Mohammad

Tisserant

et al. 2016

Separation and Purification Technology

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The extraction of bioactive compounds, produced by plant cell cultures, directly from their culture medium, which contains other by-products, is a great challenge. Resveratrol extraction from its grapevine cell cultures is considered here as an example to optimize improve the extraction processes from plant cell cultures using solubility parameters.Successive liquid-liquid extraction (LLE) processes were exploited to extract resveratrol from the culture medium with an extraction ratio approaching 100%, high selectivity and minimum amounts of solvents. The calculations of partition coefficients as a function of solubility parameters demonstrated that benzyl benzoate is the most suitable intermediate solvent to extract resveratrol from its aqueous medium. The calculations also illustrated the high ability of methanol and ethanol to extract resveratrol from benzyl benzoate. The physicochemical properties of benzyl benzoate and processing conditions were exploited to separate it from aqueous media and organic solvents. The agitation method, component ratios and extraction time were studied to maximize the extraction yield. Under the best conditions, the recovery of resveratrol from different culture media approached ~100% with a selectivity of ~92%.2 Ultimately, the improved extraction processes of resveratrol are markedly efficient, selective, rapid and economical.

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“…Variables such as type of solvent, temperature and particle size are important factors while choosing an extraction method (Leal et al . ). Solvent extraction is relatively inexpensive and efficient, but it involves potentially hazardous extracting solvent and longer extraction time.…”

Section: Introductionmentioning

confidence: 97%

“…The most commonly used and preferred method for extraction of curcuminoids is the conventional solid-liquid extraction (Govindarajan 1980;FDA 2013) because of its wide industrial applications, better reproducibility and efficiency and less extract manipulation. Variables such as type of solvent, temperature and particle size are important factors while choosing an extraction method (Leal et al 2011). Solvent extraction is relatively inexpensive and efficient, but it involves potentially hazardous extracting solvent and longer extraction time.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Oleoresin Extraction fromCurcuma longaL. Using RSM and Determination of Equilibrium Constant

Haldar

Mishra

Majumdar

2016

Journal of Food Processing and Preservation

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The effect of independent variables of Soxhlet extraction; temperature (35-55C), solvent-to-solid ratio (5-25, g/g) and particle size (0.15-0.6 mm) on oleoresin yield (% db), curcumin yield (% db) as well as total phenolic content (TPC) of extracts was investigated. Response surface methodology was used for optimization and the high correlation of the mathematical models indicated that a quadratic polynomial model could be used for optimization of the investigated responses. Multiresponse optimization study indicated that the optimum conditions for the extraction were extraction temperature 48.94C, solvent-to-solid ratio 20.95 and particle size 0.24 mm. The optimized conditions yielded 9.57% of oleoresin (db), 3.33% curcumin (db) and TPC 13.73 mg GAE/g. From the initial data of optimization, equilibrium studies were conducted considering the optimum particle size (0.24 mm) in a batch extractor at different temperatures ranging from room temperature (28C) to 50C. The equilibrium constant varied between 4.39 and 13.71 under these temperatures. PRACTICAL APPLICATIONIn this manuscript, response surface methodology approach has been used as an important research tool to evaluate the effect of different process variables on oleoresin extraction from turmeric. Also, an insight into equilibrium distribution relationship will help in equipment design and scaling up the extraction process.

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Extraction Kinetics and Anethole Content of Fennel (Foeniculum vulgare) and Anise Seed (Pimpinella anisum) Extracts Obtained by Soxhlet, Ultrasound, Percolation, Centrifugation, and Steam Distillation

Cited by 26 publications

References 47 publications

Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

Development of a liquid-liquid extraction method of resveratrol from cell culture media using solubility parameters

Optimization of Oleoresin Extraction fromCurcuma longaL. Using RSM and Determination of Equilibrium Constant

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