Journal
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
Volume 16, Issue 5, Pages 3768-3781Publisher
SPRINGER
DOI: 10.1007/s11694-022-01483-2
Keywords
Vaccinium bracteatum Thunb leaves; Polysaccharide-iron (III); Chelation; Characterization; Synthesis; Antioxidant activity
Categories
Funding
- Zhangjiagang Science and Technology Support Plan (Agriculture) Project [ZKN2002]
Ask authors/readers for more resources
In this study, a new polysaccharide VBTLP-2b was extracted and purified from Vaccinium bracteatum Thunb leaves. The synthesis process of VBTLP-2b-iron (III) complex was optimized, and its antioxidant activity was investigated. The results showed that VBTLP-2b-iron (III) exhibited better thermal stability and stronger antioxidant activities compared to VBTLP-2b, indicating its potential as a novel iron supplement.
In this paper, a new polysaccharide VBTLP-2b was extracted and purified from Vaccinium bracteatum Thunb leaves. Based on single factor experiments, the synthesis process of VBTLP-2b-iron (III) complex was optimized by response surface methodology. The characterization and antioxidant activity of VBTLP-2b-iron (III) were investigated. The optimal synthesis process of VBTLP-2b-iron (III) was pH of 8.8, temperature of 70 celcius and mass ratio of VBTLP-2b to sodium citrate of 1.2:1. The average molecular weight of VBTLP-2b-iron (III) was 57.46 kDa. VBTLP-2b-iron (III) was composed of galactose, glucose, mannose, xylose and arabinose in a molar ratio of 22.3:55.1:6.3:9.9:6.4. Hydroxyl and carboxyl groups in VBTLP-2b participated in the coordination reaction and the iron core of VBTLP-2b-iron (III) was a polymerized beta-FeOOH structure. VBTLP-2b-iron (III) had better thermal stability and stronger antioxidant activities compared with VBTLP-2b. The results indicated that VBTLP-2b-iron (III) could be potentially used as a novel iron supplement with good antioxidant activity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available