title: Extraction, antioxidant and antibacterial activities of Broussonetia papyrifera fruits polysaccharides.
abstract: Polysaccharides were extracted from Broussonetia papyrifera ((L.) L'Herit. ex Vent.) fruits (BPP), and response surface methodology was used to maximize extraction yield. The optimum extraction conditions were: ratio of water to solid, 30mL/g; extraction duration, 50min; extraction power, 180W; and extraction temperature, 60°C. Under these conditions, the yield of BPP was 8.61%. Then, BPP was purified, and three purified fractions (designated BPP-1, BPP-2 and BPP-3) were obtained for further physicochemical properties, antioxidant activity and antibacterial activity analysis. These fractions were mainly composed of glucose, mannose and arabinose residue, meanwhile, BPP-3 had a significantly higher rhamnose and uronic acid content than BPP-1 and BPP-2. And BPP-3 showed the best hydroxyl radial scavenging activity, ferric reducing activity power (FRAP), antihemolytic activity and antibacterial activity.
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Qiaohong
authors.initials: Q
authors.lastname: Han
authors.affiliation: College of Life Science and Food Engineering, Yibin University, Yibin 644000, China.
authors.forename: Zili
authors.initials: Z
authors.lastname: Wu
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Huang
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Liangqi
authors.initials: L
authors.lastname: Sun
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Chunbang
authors.initials: C
authors.lastname: Ding
authors.affiliation: College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
authors.forename: Shu
authors.initials: S
authors.lastname: Yuan
authors.affiliation: College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Yanger
authors.initials: Y
authors.lastname: Chen
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Hu
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Zhou
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Huang
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
authors.forename: Jinqiu
authors.initials: J
authors.lastname: Liao
authors.affiliation: College of life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China. Electronic address: yuanming@sicau.edu.cn.
authors.forename: Ming
authors.initials: M
authors.lastname: Yuan
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000302:isolation & purification*; D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification*; D031623:Broussonetia / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants
keywords: Antibacterial activity; Antioxidant activity; Broussonetia papyrifera fruit polysaccharides; Response surface methodology; Ultrasound-assisted extraction