期刊
CARBOHYDRATE POLYMERS
卷 267, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118195
关键词
Selenium nanoparticles; Glycol chitosan nanoparticles; Oxidative stress; Antioxidant enzymes; Ginsenoside; Chitosan
资金
- National Research Foundation (NRF) - Korean government (MEST) [2017R1C1B5076111]
- Korea Institute of Planning & Evaluation for Technology in Food, Agriculture and Forestry (KIPET), Republic of Korea [320104-3]
- National Research Foundation of Korea [2017R1C1B5076111] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The study successfully synthesized glycol chitosan coated selenium nanoparticles (GC-Se NPs) and found that treatment with 20 mg/L GC-Se NPs can induce oxidative stress and increase ginsenoside accumulation in Panax ginseng C. A. Meyer, leading to enhanced ginsenoside content and potential as a bio fortifier for improving ginseng root quality.
The objective of the present study is synthesis of glycol chitosan coated selenium nanoparticles (GC-Se NPs) and evaluation of oxidative stress and ginsenoside accumulation in P. ginseng C. A. Meyer. We synthesized (Se NPs and GC-Se NPs) and characterized using various spectroscopic analyses. The highest concentration (20 mg L-1) of GC-Se NPs induced moderate ROS (O-2(center dot-) and H2O2) accumulation and upregulation of PgSOD and PgCAT showing good biocompatibility and less toxicity at the highest concentration. Furthermore, ginsenoside biosynthetic pathway genes (PgHMGR, PgSS, PgSE, PgDDS) also showed significant upregulation upon 20 mg L-1 GC-Se NPs treatment. At 20 mg L-1 GC-Se NPs treatment, ginsenoside accumulated upto 217.47 mg/mL and 169.86 mg/mL mainly due to the increased proportion of Rb1 and Re ginsenosides. Altogether, our results suggested that ecofriendly conjugation of GC with Se NPs could be used as a bio fortifier to enhance the ginsenoside profile and to increase the quality of ginseng roots.
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