Shang, Hongmei published the artcileEffects of different extraction methods on the properties and activities of polysaccharides from Medicago sativa L. and extraction condition optimization using response surface methodology, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Medicago polysaccharide extraction response surface methodol.
Polysaccharides from alfalfa (Medicago sativa L., MSPs) were extracted by four different methods: hot-water extraction (HWE), ultrasonic-assisted extraction (UAE), enzyme-assisted extraction (EAE) and ultrasonic-enzyme-assisted extraction (UEAE). The exptl. results showed that the monosaccharide compositions of the four MSPs extracted by the different extraction methods were the same, but the monosaccharide proportions were different. MSPs extracted by the UEAE method possessed the largest extraction yield, the highest uronic acid content and the best antioxidant activities among the four MSPs analyzed. Addnl., the Plackett-Burman design (PBD) and response surface methodol. (RSM) were used to determine the optimum UEAE conditions for extracting MSPs, revealing optimal conditions at a pH of 5.7, a 58 min enzymolysis time, a 40 °C enzymolysis temperature and a 41 °C ultrasonic temperature; an MSPs yield of 12.95% was obtained under these extraction conditions.
Process Biochemistry (Oxford, United Kingdom) published new progress about Alfalfa. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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