期刊
CARBOHYDRATE POLYMERS
卷 250, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116950
关键词
Gum Odina; Polysaccharide; Arabinogalactan; Rheology; Raman spectroscopy; AFM; Antioxidant
资金
- University Grants Commission (UGC), New Delhi, India
Purified gum odina (PGO) from Odina wodier Roxb. was characterized by rheology, AFM, Raman and CD spectroscopy, in vitro antioxidant activity against hydroxyl radical and superoxide radical, and total antioxidant capacity. The PGO dispersions exhibited pseudoplastic behaviour. The viscosity of dispersion increased with increasing PGO concentration, but decreased with increasing temperature and added salt concentration. The loss modulus was higher than storage modulus indicating prevalently viscous characteristics. AFM analysis showed irregular spherical lumps due to inter- and intramolecular interactions. The Raman spectrum of PGO was similar to that of gum arabic. Circular dichroism revealed partial adoption of polypmline II type conformation, suggesting a less compact structure. The PGO was found to scavenge hydroxyl radical (IC50 517.68 +/- 3.60 mu g/mL) and superoxide radical (IC50 586.21 +/- 3.41 mu g/mL), and possess total antioxidant capacity (9.64 +/- 0.23 mg gallic acid equivalent/g). Overall, this work would exploit PGO as a new hydrocolloid source in the food and pharmaceutical industries.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据