Environmentally friendly preparation of pectins from agricultural byproducts and their structural/rheological characterization

Min, Bockki; Lim, Jae-Han; Ko, Sanghoon; Lee, Kwang‐Geun; Lee, Sung Ho; Lee, Suyong

doi:10.1016/j.biortech.2010.12.019

Cited by 118 publications

(66 citation statements)

References 23 publications

(30 reference statements)

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“…CanteriSchemin et al 2005 stated that nitric acid is an excellent extraction agent. The pectin concentration in different materials vary quantitatively according to the source of raw material, but usually is between 2.9 and 22 % in apples; 9-30 % in lemons; 17 and 25 % in mangoes and 5 and 30 % in oranges (Koubala et al 2008;Min et al 2011;Rha et al 2011). High rates of pectin extraction by hot diluted acid, HCl or HNO 3 , is suggested as the best approach for production on an industrial scale (Canteri-Schemin et al 2005;Liang et al 2012).…”

Section: Resultsmentioning

confidence: 99%

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Physicochemical properties of modified citrus pectins extracted from orange pomace

et al. 2014

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Modified pectin is a polysaccharide rich in galacturonic acid altered by pH adjustment and thermal treatment used especially as an anti-cancer agent. The aim of this work was to study the physical and chemical properties of modified pectins extracted from orange pomace with citric and nitric acids. The galacturonic acid content, degree of esterification, Fourier Transform Infrared Spectroscopy profile, molecular weight, intrinsic viscosity, rheological properties and antioxidant activity of the pectins were evaluated. The modification process caused the de-esterification of pectins and a decrease of molecular weight due to removal of neutral sugars, maintaining the linear chain of galacturonic acid. Such changes also caused a significant increase in the in vitro antioxidant activity (p≤0.05) and influenced the rheological properties of pectin, reducing its viscosity. This work showed that the modification of pectin from orange pomace with citric and nitric acids altered its structural and physical characteristics as well as its biological activity toward a free-radical.

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Section: Resultsmentioning

confidence: 99%

“…) were dissolved in 0.1 mol L −1 NaCl solution by mechanical stirring for 6 h at room temperature (Min et al 2011;Liang et al 2012). Flow curves of pectin samples were obtained at different temperatures of processing (10, 30 and 50ºC).…”

Section: Rheological Analysismentioning

confidence: 99%

Physicochemical properties of modified citrus pectins extracted from orange pomace

et al. 2014

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“…Apple and citrus wastes are traditionally the main sources of commercial pectin (Thibault & Ralet, 2003). They are generated from processing industries for apple and citrus fruits after juice extraction that are among the foremost food industries, producing about 3-4.2 × 10 6 and 15.6 × 10 6 M tons per year of wastes, respectively (Min et al, 2011). Therefore, the exploration of proper disposal methods for apple pomace and citrus peels, the residue left after processing, has been the focus of several studies aimed at improving the extraction methods and to recover further biopolymers.…”

Section: Vegetable Wastes: New Polysaccharides' Sustainable Sourcesmentioning

confidence: 99%

“…oxalic, hydrochloric, nitric and sulphuric acid) at high temperatures (80-90°C). A new eco-friendly extraction technique was tested for apple pomace: based on combined physical and enzyme treatments (Min et al, 2011), it afforded amounts of pectin comparable to those obtained by means of classical chemical treatments (about 10-15% of dry matter waste). Besides pectin, other main components of apple pomace are the cell wall polysaccharides cellulose and xyloglucan.…”

Section: Vegetable Wastes: New Polysaccharides' Sustainable Sourcesmentioning

confidence: 99%

Polysaccharides from Wastes of Vegetable Industrial Processing: New Opportunities for Their Eco-Friendly Re-Use

Poli¹,

Anzelmo²,

Nicolaus³

et al. 2011

Biotechnology of Biopolymers

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“…In this study, we used apple vinegar, grape vinegar and coconut water as widely-available and inexpensive replacements for pure organic solvents. The non-flammable and non-volatile nature of these solvents also makes their handling safe and environmental friendly for scale-up of production in developing countries (Diaz-Reinoso et al 2006;Fontana et al 2009;Yapo 2009;Min et al 2011).…”

Section: Introductionmentioning

confidence: 99%

The influence of extraction solvents on the anticancer activities of Palestinian medicinal plants

Alzeer¹,

Vummidi²,

Arafeh³

et al. 2014

J. Med. Plants Res.

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Palestine has a rich and prestigious heritage of herbal medicines. To investigate the impact of variable extraction techniques on the cytotoxic effects of medicinal plant extracts, 5 well-known medicinal plants from Palestine were extracted with 90% ethanol, 80% methanol, acetone, coconut water, apple vinegar, grape vinegar or 5% acetic acid. The resulting 35 extracts were screened for cytotoxic activities against three different cancer cell lines (B16F10, MCF-7 and HeLa) using a standard resazurin-based cytotoxicity assay and Nile Blue A as the positive control. Highly variable toxicities and tissue sensitivity were observed, depending upon the solvent used for extraction. The acetone extract of Salvia officinalis L. exhibited the most potent cytotoxicity (IC50 = 14 -36 ug/ml), but very little sensitivity between the three cell lines. More moderate cytotoxicity with improved tissue sensitivity was observed with coconut water extract of Salvia officinalis L (IC50 = 114 µg/ml) and methanolic extract of Teucrium polium L (IC50 = 104 µg/ml). In this study, acetone consistently gave lower extraction yields but higher cytotoxicity, whereas other solvent systems gave much higher extraction yields with lower cytotoxicity. These results demonstrate how the cytotoxicity of plant extracts can be inversely proportional to the yield, and that solvent selection plays an important role in both factors. (IC 50 = 104 µg/ml). In this study, acetone consistently gave lower extraction yields but higher cytotoxicity, whereas other solvent systems gave much higher extraction yields with lower cytotoxicity. These results demonstrate how the cytotoxicity of plant extracts can be inversely proportional to the yield, and that solvent selection plays an important role in both factors.

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Environmentally friendly preparation of pectins from agricultural byproducts and their structural/rheological characterization

Cited by 118 publications

References 23 publications

Physicochemical properties of modified citrus pectins extracted from orange pomace

Physicochemical properties of modified citrus pectins extracted from orange pomace

Polysaccharides from Wastes of Vegetable Industrial Processing: New Opportunities for Their Eco-Friendly Re-Use

The influence of extraction solvents on the anticancer activities of Palestinian medicinal plants

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