热带作物学报2017，Vol.38Issue(7)：1371-1376,6.DOI:10.3969/j.issn.1000-2561.2017.07.030
火龙果茎多糖的超高压提取及抗氧化活性研究
Ultra High Pressure Extraction and Antioxidannt Activity of Polysaccharides from Pulp Pitaya Stem
摘要
Abstract
To study the technology of ultra high pressure extraction and analysis its antioxidannt activity of polysaccharides from pulp pitaya stem, on the basis of single factor experiments, the optimal processing conditions were determined by means of response surface analysis and Box-Behnken design. The results showed that the optimum extraction conditions of the polysaccharides from pulp pitaya stem were as follows: liquid to solid ratio10:1 (mL/g), pressure 300 MPa and extraction time 4min. Under the conditions, the extraction yield of the polysaccharides from pulp pitaya stem reached ( 2.83 ±0.02)%. The polysaccharides from pulp pitaya stem had the ABTS and DPPH scavenging activity. The mass concentration of IC50 was 4.3 mg/mL and 5.5 mg/mL, respectively. This study could provide useful references for the development and exploitation of the polysaccharides from pulp pitaya stem.关键词
火龙果茎/多糖/超高压/抗氧化Key words
pulp pitaya stem/polysaccharides/ultra high pressure/antioxidant分类
轻工纺织引用本文复制引用
郭淼,宋江峰,王传凯..火龙果茎多糖的超高压提取及抗氧化活性研究[J].热带作物学报,2017,38(7):1371-1376,6.基金项目
河南省食品加工过程安全控制技术创新团队(No. C20150024). （No. C20150024）
