High performance curcumin subcritical water extraction from turmeric (Curcuma longa L.)

Kiamahalleh, Mohammad Valizadeh; Darzi, Ghasem Najafpour; Rahimnejad, Mostafa; Moghadamnia, Ali Akbar; Kiamahalleh, Meisam Valizadeh

doi:10.1016/j.jchromb.2016.04.021

Cited by 86 publications

(33 citation statements)

References 29 publications

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“…Figure 5 also shows that the downside of a higher extraction temperature like 140 °C is thermal degradation, as clearly seen for all three curcuminoids. This is in accordance with a previous study on static extraction [16]. Moreover, a comparison with the static extraction study also revealed that the consumption of solvent could be reduced and extraction speed accelerated if some extraction parameters are optimised, such as particle size of turmeric and pre-treatment of the powder.…”

Section: Resultssupporting

confidence: 91%

“…The root of the turmeric ( Curcuma longa L.) plant is widely used in food, traditional medicine and textile colourants in south Asia [16]. The principal components of turmeric are curcumin and its demethoxy and bisdemethoxy derivatives (see Electronic Supplementary Material (ESM) Fig.…”

Section: Resultsmentioning

confidence: 99%

“…S1), which have been proven to exhibit various beneficial health and medicinal effects [17, 18]. The use of hot water or pressurised hot water as extraction solvent has been widely applied in many extraction applications including the extraction of curcuminoids from turmeric [16, 19–21]. In the current study, PHWE of three major curcuminoids from a commercial turmeric power under different extraction conditions was performed as a proof of concept of the new extraction–chromatography system coupled using parallel sampling.…”

Section: Resultsmentioning

confidence: 99%

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Dynamic extraction coupled on-line to liquid chromatography with a parallel sampling interface—a proof of concept for monitoring extraction kinetics

et al. 2019

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On-line hyphenation of extraction with chromatography has been explored in several different types of combinations. However, monitoring the complete process of a dynamic, continuous-flow extraction is not possible with any hyphenated system reported so far. The current work demonstrates that this challenging task can be effectively fulfilled by using a parallel sampling interface, which mimics the concept of comprehensive two-dimensional chromatography. In this study, pressurised hot water extraction was coupled on-line with ultra-high-performance liquid chromatography. The set-up was utilised in a kinetic study of dynamic pressurised hot water extraction of curcuminoids from turmeric powder. Compound-specific extraction curves were obtained, which clearly indicated the rate-limiting factors of the extraction processes under different conditions. Additionally, thermal degradation of curcumin during the extraction could also be demonstrated in some of the extractions. Electronic supplementary material The online version of this article (10.1007/s00216-019-01849-4) contains supplementary material, which is available to authorized users.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Dynamic extraction coupled on-line to liquid chromatography with a parallel sampling interface—a proof of concept for monitoring extraction kinetics

et al. 2019

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“…It can be seen that, maximum efficiency for extraction of curcumin was obtained at a concentration level of 80% acetone. This is due to the fact that, curcumin is least soluble in water [6], and as the concentration of water in the solvent decreases, the extraction efficiency increases. Also, water has a prime effect on the porosity and hardness of the turmeric.…”

Section: Minimum Concentration and Volume Of Solventmentioning

confidence: 99%

“…However, the remaining constituents of curcuminoids include sugars, proteins and resins. Curcumin (C 12 H 20 O 6 ), approximately 0.5-6.0 % by weight of the root of turmeric and about 3-5% of the composition of turmeric, is the principal of the three curcuminoids, the other two being demethoxy curcumin (DMC), and bisdemethoxy curcumin (BDMC) [9]. CUR is the biologically active photochemical compound, primarily responsible for its bright yellow colour, making it a valuable additive in the food industry.…”

Section: Introductionmentioning

confidence: 99%

Process Development for the Effective Extraction of Curcumin from Curcuma Longa L (Turmeric)

P¹,

Vaishnavi²,

Theepapriys³

et al. 2018

IJET

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Curcumin, the active, light sensitive agent, found in significant amounts in Curcuma longa L, is a potential therapeutic agent, possessing various pharmaceutical and industrial uses. The present extraction techniques, that are in application for many decades suffer from many economical and environmental demerits. This work is a prospective and noteworthy step towards conquering those disadvantages by means of optimizing the extraction process parameters and developing an energy efficient, environment friendly and economical process. In this study, various organic solvents were tested for their ability of curcumin extraction an concluded that acetone is most efficient. The process parameters like time, temperature and particle size were investigated and the minimum volume and concentration of solvent required were determined. Three potential pre-treatment process were analyzed for their capability to effectively distort the turmeric structure and aid in increasing the overall efficiency of the process. It was found that, employment of a mechanical distortion method by microwave assistance, and further followed by chemical disintegration, by means of enzymatic treatment, resulted in high attainable efficiency.

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Study on Combined Optical and Electrochemical Analysis Using Indium‐tin‐oxide‐coated Optical Fiber Sensor

et al. 2019

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In this work an optical fiber sensor, where a lossy‐mode resonance (LMR) effect was obtained due to indium tin oxide (ITO) thin overlay, has been simultaneously applied as a working electrode in a 3‐electrode cyclic voltammetry electrochemical setup. Since LMR conditions highly depend on refractive index of a surrounding medium, an LMR‐based sensor was applied for optical investigations of electrolyte's properties at the ITO surface. We have found that the optical response of the sensor highly depends on the applied potential and its changes, as well as the properties of the investigated electrolyte, i. e., its composition and presence of a redox probe. Both optical and electrochemical response of the ITO‐LMR sensor to various concentrations of phosphate‐buffered saline (PBS), NaCl and Na2SO4, as well as scan rate were investigated and discussed. We have found that the responses in optical and electrical domains differ significantly and may deliver supplementary information about the investigated analyte.

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High performance curcumin subcritical water extraction from turmeric (Curcuma longa L.)

Cited by 86 publications

References 29 publications

Dynamic extraction coupled on-line to liquid chromatography with a parallel sampling interface—a proof of concept for monitoring extraction kinetics

Dynamic extraction coupled on-line to liquid chromatography with a parallel sampling interface—a proof of concept for monitoring extraction kinetics

Process Development for the Effective Extraction of Curcumin from Curcuma Longa L (Turmeric)

Study on Combined Optical and Electrochemical Analysis Using Indium‐tin‐oxide‐coated Optical Fiber Sensor

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