Effects of extraction methods on antioxidant activities of polysaccharides from camellia seed cake

Shen, Shian; Cheng, Haoran; Li, Xu; Tian, Li; Yuan, Ming; Zhou, Yonghong; Ding, Chunbang

doi:10.1007/s00217-014-2183-2

Cited by 69 publications

(43 citation statements)

References 24 publications

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“…Shen et al. (2014) extracted polysaccharide from camellia seed cake and estimated Mw was reported to be higher in polysaccharide extracted by alkali extraction followed by HWE and UAE. Moreover, Mn values of the observed peaks of the extracted gum were found to be 7.81 × 10 5 and 1.51 × 10 3 g/mol for FSG‐UAE; 7.80 × 10 5 and 1.50 × 10 3 g/mol for FSG‐HWE; 4.33 × 10 5 and 2.86 × 10 3 g/mol for FSG‐MAE; and 4.03 × 10 5 , 1.89 × 10 3 , and 4.13 × 10 2 g/mol for AAE.…”

Section: Resultsmentioning

confidence: 99%

Influence of different extraction techniques on recovery, purity, antioxidant activities, and microstructure of flaxseed gum

Safdar

Pang

Liu

et al. 2020

Journal of Food Science

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Four extraction techniques (that is, hot water extraction [HWE], alkaline-acidic extraction [AAE], ultrasound assisted extraction [UAE], and microwave assisted extraction [MAE]) were compared for flaxseed gum extraction and their influence on the yield, purity, structural characterization (monosaccharide composition, molecular weight distribution, and microstructure by transmission electron microscope), and antioxidant activity (in terms of scavenging ability of 2,2diphenyl-1-picrylhydrazyl [DPPH], 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid [ABTS], and reducing power) was investigated. The HWE achieved higher yield (8.96%) than UAE (7.84%) followed by MAE (7.01%) and AAE (6.44%). Moreover, the four flaxseed gum (FSG) samples exhibited the identical monosaccharide composition, but slight difference was observed in the content, whereas the molecular weight ratios exhibited significant difference. All samples displayed concentration-dependent manner for all antioxidant assays. UAE-FSG showed significant higher scavenging ability on DPPH free radical, ABTS free radical, reducing power, and β-carotene bleaching assay followed by HWE-FSG, MAE-FSG, and AAE-FSG. Overall results showed that UAE was favorable to the purity of FSG, whereas HWE was more advantageous to improve the extraction yield and facile as it requires no special equipment.

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Section: Resultsmentioning

confidence: 99%

Influence of different extraction techniques on recovery, purity, antioxidant activities, and microstructure of flaxseed gum

Safdar

Pang

Liu

et al. 2020

Journal of Food Science

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“…The bioactivity of EPSSH3 might be affected by their structural features, such as chemical composition, molecular mass, types of glycosidic linkage, and conformation. Differences in origin materials, extraction and drying procedures that influence the physiochemical properties will lead to differences in antioxidant activity (Cheung et al, 2012;Wang et al, 2012;Gou et al, 2014 andShen et al, 2014) and a similar observation for uronic acid content was reported (Mateos-Aparicio et al, 2010). Additionally, it is suggested that the number of hydroxyl or charged groups in polysaccharides are responsible for the overall radical scavenging ability (Guo et al, 2005).…”

Section: Antioxidant Activity Of Epssh3mentioning

confidence: 70%

Production and Assessment of Antioxidant Activity of Exopolysaccharide from Marine Streptomyces globisporus BU2018

et al. 2019

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M ICROBIAL polysaccharides are involved in a wide range of biotechnological applications. Three streptomycetes isolates isolated from marine sediment from Sharm El-Sheikh were screened for their ability to produce exopolysaccharides (EPSs) as well as the antioxidant activity. Streptomyces globisporus BU2018 producing EPS which had the highest antioxidant activity was identified based on morphological, biochemical characteristics as well as molecular analysis of 16S rRNA gene. S. globisporus BU2018 produced 8.5g/L of EPS which was fractionated to give EPSSH3 as a major fraction and subjected to determine its antioxidant activities. Maximum antioxidant activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical was ~ 92.9±1.3% at 1500µg/ml after 120min and the half maximal inhibitory concentration (IC 50) value was 500µg/ml after 60min. Therefore, the most extreme activity against H 2 O 2 radical was 68.5±1.48% at 1500µg/ml after 60min with IC 50 value of about 1000µg/ml after 60min. Moreover, the maximum reducing power activity of exopolysaccharide SH3 (EPSSH3) was at concentration 1000µg/ml and the most extreme metal chelating activity was 90.2% at 1000µg/ ml. The EPSSH3 fraction contained uronic acid (65.13%) and no sulfate. The monosaccharide composition was glucuronic acid: galacturonic acid: rhamnose: fructose through molar ratio 4.0: 3.0: 1.0: 1.0, respectively. These indicate that the fraction is acidic heteropolysaccharide. The EPSSH3 had an overall average molecular weight (Mw) of 8.15×10 5 g/mol and number average molecular weight (Mn) of 6.36×10 5 g/mol. Otherwise, the fourier transform infrared spectrometry analysis proposed that it belongs to a β-type heteropolysaccharide.

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“…MOLPFs‐MHWE, ‐UAE and ‐UAPE contained more low‐Mw components. AAE, enzyme (cellulose and pectinase) extraction and UAE facilitated the release of polysaccharide with high Mw (Shen et al , ). However, the increases in sonication time and power led to moderate degradation of polysaccharide (Li et al , ).…”

Section: Resultsmentioning

confidence: 99%

Effects of extraction methods on structural characteristics and bile acid‐binding capacities of Moringa oleifera leaf polysaccharide fractions

Yang

Zhao

Lin

2019

Int J of Food Sci Tech

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Summary There is an urgent need for safe and effective bile acid sequestrants from edible plants to treat hyperlipidaemia. Moringa oleifera leaf has been reported to be a source of hypolipidaemic agents. However, limited information is available on the bile acid‐binding capacity of M. oleifera leaf polysaccharide fraction (MOLPF). To illustrate structure‐bile acid‐binding capacity relationship of MOLPFs obtained by eight common extraction methods and provide an extraction technique for MOLPF with strong bile acid‐binding capacity, structure characteristics and bile acid‐binding capacities of MOLPFs were investigated. The results indicated that extraction method greatly affected morphology, monosaccharide composition, glycosidic linkage and molecular weight distribution of MOLPF. MOLPFs with lower contents of galactose and more branched components exhibited lower binding rates. MOLPFs prepared by cellulase and ultrasonic‐assisted cellulase extraction methods possessing the highest contents of galactose and relatively high proportions of linear macromolecules exhibited the strongest binding capacities, showing potential hypolipidaemic effects.

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Effects of extraction methods on antioxidant activities of polysaccharides from camellia seed cake

Cited by 69 publications

References 24 publications

Influence of different extraction techniques on recovery, purity, antioxidant activities, and microstructure of flaxseed gum

Influence of different extraction techniques on recovery, purity, antioxidant activities, and microstructure of flaxseed gum

Production and Assessment of Antioxidant Activity of Exopolysaccharide from Marine Streptomyces globisporus BU2018

Effects of extraction methods on structural characteristics and bile acid‐binding capacities of Moringa oleifera leaf polysaccharide fractions

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