کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7791069 | 1500645 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrasound enhanced production and antioxidant activity of polysaccharides from mycelial fermentation of Phellinus igniarius
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ultrasound enhanced production and antioxidant activity of polysaccharides from mycelial fermentation of Phellinus igniarius Ultrasound enhanced production and antioxidant activity of polysaccharides from mycelial fermentation of Phellinus igniarius](/preview/png/7791069.png)
چکیده انگلیسی
In this study, a novel flat-plate ultrasound technology was developed to stimulate polysaccharides production from Phellinus igniarius mycelial fermentation. Three-factor-three-level Box-Behnken design was used to optimize ultrasonic treatment time, duty cycle time and culture time for a high yield of P. igniarius polysaccharides (PIPS). Optimal conditions were found to be ultrasound treatment time 65Â min, duty cycle time 25Â s, and culture time 3.8Â d that gave a maximum PIPS yield of 1.8002Â g/L, which increased â¼22.64% compared with the control (without any ultrasound). PIPS mainly contained low-molecular weight (MW) polysaccharides (3.1Â kDa, 80%) composed of glucose, rhamnose and mannose in a molar ratio of 11.0:14.0:1.0. PIPS with higher carbohydrate and uronic acid contents exhibited strong antioxidant activities in vitro. Laser scanning confocal microscope (LSCM) observations suggested that ultrasound could change the morphology and structure of P. igniarius mycelium, and accelerate the transfer of nutrients and metabolites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 380-387
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 380-387
نویسندگان
Henan Zhang, Haile Ma, Wan Liu, Juanjuan Pei, Zhenbin Wang, Huiji Zhou, Jingkun Yan,