Abstract
In the present study, polysaccharides were extracted from Pharbitis nil seeds (PNSs) by ultrasonic extraction method for the first time. Response surface methodology with Box–Behnken design was used to optimize the extraction process of PNS polysaccharides (PNSPs). Highest PNSPs yield 6.01±0.15% that agreed closely with the predicted yield 5.99% were obtained under the optimal conditions as follows: ratio of water to raw material 6.5mL/g, extraction temperature 49.0°C, ultrasonic power 61.6W, and extraction time 32.6min. Preliminary characterization indicated that the sugar, uronic acid and protein contents of the product were 83.6±1.61, 21.8±1.25 and 16.4±0.88% (w/w), respectively. FT-IR analysis revealed the general characteristic absorption peaks of polysaccharides. Besides, PNSPs showed a remarkable antioxidant activity in vitro in a dose-dependent manner. These may provide theoretical basis for further system research and rational development and utilization of PNS resources.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
