Extraction, purification, characterization and antioxidant activities of polysaccharides from Zizyphus jujuba cv. Linzexiaozao

Wang, Yonggang; Xu, Yebin; Ma, Xueqing; Liu, Xiaofeng; Yang, Ming; Fan, Wei; Ren, Haiwei; Efehi, Nehikhare; Wang, Xiaoli; Zhu, Xinna

doi:10.1016/j.ijbiomac.2018.07.059

Cited by 34 publications

(21 citation statements)

References 47 publications

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“…This is because the increase in extraction time makes it easier and faster to dissolve the polysaccharides into the solvent (Lin et al, 2017), but too long extraction time will result in the destruction of polysaccharide structure (Chen et al, 2019b;Zheng et al, 2019) and competitive dissolution of other impurities (Nuerxiati et al, 2019), leading in a decrease in yield. This phenomenon was consistent with the extraction of polysaccharides in other literatures (Wang et al, 2018b;Yang et al, 2017). Therefore, the extraction time should be chosen around 4 h.…”

Section: Effect Of Extraction Time On Polysaccharide Yieldsupporting

confidence: 88%

Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides

Liu

2021

Food Sci. Technol

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Three extraction parameters including extraction time, material to solvent ratio, and extraction temperature for the extraction yield of Phyllanthus urinaria polysaccharides were optimized by response surface methodology. The results revealed that the optimal extraction process was extraction time of 5.3 h, extraction temperature of 93 °C, and material to solvent ratio of 1:47 g/mL, under which the polysaccharide yield was 6.40%; The three parameters had significant effect on the polysaccharide yield, and the influence of extraction time was the greatest and that of extraction temperature was the lowest. The antioxidant activity test indicated that the equivalent scavenging ability of Phyllanthus urinaria polysaccharides on DPPH and ABTS free radicals was 0.88 and 0.84 μg TBHQ/μg of polysaccharides, respectively; while the reducing power and total antioxidant capacity of Phyllanthus urinaria polysaccharides was equivalent to 93.62% and 93.55% of TBHQ, respectively. The Phyllanthus urinaria polysaccharides had good antioxidant activity.

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Section: Effect Of Extraction Time On Polysaccharide Yieldsupporting

confidence: 88%

Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides

Liu

2021

Food Sci. Technol

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“…The yield decreased when the extraction time increased continuously. This could imply that an increased extraction time can make the extraction procession become easier and quicker, but the degradation of polysaccharides might be caused by a too long extraction time [34,35]. Finally, the optimal extraction conditions were determined to be 400 W, 50 mL/g, and 6 min.…”

Section: Resultsmentioning

confidence: 99%

Extraction Optimization, Structural Characterization, and Antioxidant Activities of Polysaccharides from Cassia Seed (Cassia obtusifolia)

Han

et al. 2019

Molecules

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In order to explore Cassia seed polysaccharides (CSPs) as natural antioxidants for application in the functional-food industry, microwave-assisted extraction (MAE) was optimized for the extraction of CSPs by using a response surface methodology. Furthermore, the chemical structures and antioxidant activities of CSPs extracted by MAE and hot water extraction were investigated and compared. The maximum extraction yield of CSPs extracted by MAE (8.02 ± 0.19%) was obtained at the optimized extraction parameters as follows: microwave power (415 W), extraction time (7.0 min), and ratio of water to raw material (51 mL/g). Additionally, the contents of the uronic acids, molecular weight, ratio of constituent monosaccharides, intrinsic viscosities, and degrees of esterification of CSPs were significantly affected by the MAE method. Moreover, CSPs exhibited remarkable 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) ABTS, 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl DPPH, nitric oxide, and hydroxyl radical scavenging activities as well as reducing power. The high antioxidant activities observed in CSPs extracted by MAE could be partially attributed to its low molecular weights and high content of unmethylated galacturonic acid. Results indicate that the MAE method could be an efficient technique for the extraction of CSPs with high antioxidant activity, and CSPs could be further explored as functional food ingredients.

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“…It is also more environmental friendly due to the reduced consumption of solvents and energy [8,9,10]. However, many research studies have indicated that extraction methods can significantly affect the yield of polysaccharides, as well as their physicochemical properties and biological activities [11,12]; that is to say, the effects on the extraction yield, structural characteristics, and biological characteristics of the polysaccharides prepared by different methods should not be neglected. In order to improve the extraction yield of polysaccharides, the optimal extraction parameters are determined by response surface methodology (RSM).…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Extraction, Purification, Partial Characterization, and Bioactivity of Polysaccharides from Panax ginseng

2019

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Polysaccharides are a main active substance in Panax ginseng; however, microwave-assisted extraction used to prepare P. ginseng polysaccharides (MPPG) has rarely been reported, and knowledge of the bactericidal activity of P. ginseng polysaccharides remains low. Thus, this study was designed to investigate the extraction of P. ginseng polysaccharides by using two methods—hot water extraction and microwave-assisted extraction—and compare their chemical composition and structure. In addition, their antibacterial and antioxidant activities were also determined. The data implied that P. ginseng polysaccharides extracted by microwave-assisted extraction possessed a higher extraction yield than hot water extraction (WPPG) under optimized conditions, and the actual yields were 41.6% ± 0.09% and 28.5% ± 1.62%, respectively. Moreover, the preliminary characterization of polysaccharides was identified after purification. The WPPG with the molecular weight (Mw) of 2.07 × 105 Da was composed of Man, Rib, Rha, GalA, Glu, Gal, and Arab, and the typical characteristics of polysaccharides were determined by IR spectra. Compared with WPPG, MPPG had a higher Mw, uronic acid content, and Glu content. More importantly, the antioxidant activity of MPPG was higher than WPPG, which was probably ascribed to its highly Mw and abundant uronic acid content. Besides, both of them exhibited high bactericidal activity. These results demonstrate that microwave-assisted extraction is an effective method for obtaining P. ginseng polysaccharides, and MPPG could be applied as an antioxidant and antibacterial agent.

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Extraction, purification, characterization and antioxidant activities of polysaccharides from Zizyphus jujuba cv. Linzexiaozao

Cited by 34 publications

References 47 publications

Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides

Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides

Extraction Optimization, Structural Characterization, and Antioxidant Activities of Polysaccharides from Cassia Seed (Cassia obtusifolia)

Microwave-Assisted Extraction, Purification, Partial Characterization, and Bioactivity of Polysaccharides from Panax ginseng

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