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1. Optimization of ultrasonic-assisted extraction, characterization and biological activities of polysaccharides from Orchis chusua D. Don (Salep)

Author:
Abuduwaili, Aytursun,   et al.   ; Nuerxiati, Rehebati; Mutailifu, Paiheerding; Wubulikasimu, Atikan; Rustamova, Nigora; Jingxue, Cui; Aisa, Haji Akber; Yili, Abulimiti;     Show all 8 Authors
Source:
International journal of biological macromolecules 2019 v.141 pp. 431-443
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; Orchis; X-ray diffraction; anti-inflammatory activity; antioxidant activity; chemical composition; cytotoxicity; experimental design; food industry; free radicals; gas chromatography-mass spectrometry; glucose; mannose; molecular weight; nuclear magnetic resonance spectroscopy; polysaccharides; raw materials; response surface methodology; scanning electron microscopy; temperature; thermogravimetry; toxicity testing; ultrasonics
Abstract:
... In the present study, ultrasonic-assisted extraction (UAE) of polysaccharides from Orchis chusua D. Don (salep) was optimized by response surface methodology (RSM) combined with a Box–Behnken design (BBD), the optimum conditions were determined to be: ultrasonic power of 390 W, extraction temperature of 60 °C, extraction time of 50 min and water/raw material ratio of 40 mL/g. Based on it, 48.30 ±  ...
DOI:
10.1016/j.ijbiomac.2019.08.112

2. Effects of different extraction techniques on physicochemical properties and biological activities of polysaccharides from Fritillaria pallidiflora Schrenk

Author:
Abuduwaili, Aytursun,   et al.   ; Rozi, Parhat; Mutailifu, Paiheerding; Gao, Yanhua; Nuerxiati, Rehebati; Aisa, Haji Akber; Yili, Abulimiti;     Show all 7 Authors
Source:
Process biochemistry 2019 v.83 pp. 189-197
ISSN:
1359-5113
Subject:
Fourier transform infrared spectroscopy; Fritillaria pallidiflora; X-ray diffraction; antioxidant activity; arabinose; chemical composition; galactose; glucose; hydroxyl radicals; mannose; moieties; oils; polysaccharides; rhamnose; scanning electron microscopy; solubility; ultrasonic treatment; uronic acids; xylose
Abstract:
... In this study, polysaccharides were extracted using different techniques including ultrasound-assisted extraction (UA), cellulase-assisted extraction (CA), cellulase-ultrasound-assisted extraction (CUA) and pectinase-ultrasound-assisted extraction (PUA) from Fritillaria pallidiflora Schrenk. Extraction yields, chemical composition, physicochemical, structural properties and antioxidant activities ...
DOI:
10.1016/j.procbio.2019.05.020

3. Sequential extraction, characterization and antioxidant activity of polysaccharides from Fritillaria pallidiflora Schrenk

Author:
Abuduwaili, Aytursun,   et al.   ; Rozi, Parhat; Mutailifu, Paiheerding; Gao, Yanhua; Rakhmanberdieva, Rano; Aisa, Haji Akber; Yili, Abulimiti;     Show all 7 Authors
Source:
International journal of biological macromolecules 2019 v.131 pp. 97-106
ISSN:
0141-8130
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; Fritillaria pallidiflora; anion exchange; antioxidant activity; antioxidants; arabinose; free radicals; galactose; gel chromatography; glucose; mannose; moieties; molecular weight; nuclear magnetic resonance spectroscopy; polysaccharides; rhamnose; scanning electron microscopy; thermal stability; thermogravimetry; xylose
Abstract:
... In this paper, Fritillaria pallidiflora schrenk polysaccharides were extracted with different methods and isolated by anion-exchange and gel-permeation chromatography. Physicochemical properties, structural characteristics and antioxidant activities were investigated for the first time. The polysaccharides composed of glucose, galactose, arabinose, xylose, mannose and rhamnose with different molar ...
DOI:
10.1016/j.ijbiomac.2019.03.029