title: Physicochemical properties and in vitro antioxidant activities of polysaccharide from Artocarpus heterophyllus Lam. pulp.
abstract: A water-soluble polysaccharide from Artocarpus heterophyllus Lam. (jackfruit) pulp (JFP-Ps) was purified and its physicochemical properties were investigated. The in vitro antioxidant activities of JFP-Ps was evaluated by measuring DPPH and OH radicals scavenging activities, as well as reducing power. The results showed that JFP-Ps contained 79.12% of total sugar, 5.83% of protein, 15.65% of uronic acid, and 15 kinds of amino acids with high levels of Asp, Glu, Val, Leu and Lys. JFP-Ps was mainly composed of Rha, Ara, Gal, Glc, Xyl and GalA, with an average molecular weight of 1668kDa. FT-IR results showed the bands at the range of 1200-850cm-1suggested the presence of carbohydrates in JFP-Ps. The results of antioxidant activities showed that JFP-Ps exhibited strong DPPH and OH radical scavenging activities, with a relatively lower reducing power, suggesting that JFP-Ps can be exploited as effective natural antioxidant applications in medical and food industries.
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China.
authors.forename: Kexue
authors.initials: K
authors.lastname: Zhu
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China.
authors.forename: Yanjun
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China. Electronic address: spnie@ncu.edu.cn.
authors.forename: Shaoping
authors.initials: S
authors.lastname: Nie
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China.
authors.forename: Shuzhen
authors.initials: S
authors.lastname: He
authors.affiliation: School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand.
authors.forename: Deming
authors.initials: D
authors.lastname: Gong
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.affiliation: Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China. Electronic address: tlh3687@163.com.
authors.forename: Lehe
authors.initials: L
authors.lastname: Tan
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D031622:Artocarpus / Q000737:chemistry*; D010936:Plant Extracts; D011134:Polysaccharides / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D011134:Polysaccharides
keywords: Antioxidant activity; Artocarpus heterophyllus Lam; Physicochemical properties; Polysaccharide