Effects of steaming on chemical composition of Panax ginseng hairy roots and Panax ginseng

2012 ◽  
Vol 6 (14) ◽  
Author(s):  
Pei He Zheng
1996 ◽  
Vol 15 (8) ◽  
pp. 555-560 ◽  
Author(s):  
Kayo Yoshimatsu ◽  
Hiroko Yamaguchi ◽  
Koichiro Shimomura

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Ewa Skała ◽  
Patrícia Rijo ◽  
Catarina Garcia ◽  
Przemysław Sitarek ◽  
Danuta Kalemba ◽  
...  

The essential oils were isolated by hydrodistillation from the hairy roots (HR) and roots of soil-grown plants (SGR) of Rhaponticum carthamoides and were analyzed by GC-MS method. In the both essential oils 62 compounds were identified. The root essential oils showed the differences in the qualitative and quantitative composition. The sesquiterpene hydrocarbons (55–62%) dominated in both essential oils. The major compounds of HR essential oil were cyperene, 13-norcypera-1(5),11(12)-diene, and cadalene while aplotaxene, nardosina-1(10),11-diene, and dauca-4(11),8-diene dominated in SGR essential oil. Both essential oils showed antibacterial activity especially against Enterococcus faecalis (ATCC 29212) and Pseudomonas aeruginosa (ATCC 27853) (MIC value = 125 µg/mL). HR and SGR essential oils also decreased the expression of IL-1β, IL-6, and TNF-α and the ROS level in LPS-treatment astrocytes. This is the first report to describe the chemical composition of R. carthamoides essential oil from hairy roots, its protective effect against LPS-induced inflammation and ROS production in astrocytes, and its antimicrobial potential. The results show that R. carthamoides hairy roots may be a valuable source of the essential oil and may be an alternative to the roots of soil-grown plants.


2017 ◽  
Author(s):  
Xin Zhai ◽  
Ling Chen ◽  
Min Jia ◽  
Changhui Li ◽  
Hui Shen ◽  
...  

AbstractEndophytes and plants can establish specific long-term symbiosis through the accumulation of secondary metabolites. Interactions between microbial inhabitants represent a novel area of study for natural products research. In this study, a strain of endophyte 3R-2 that can enhance the biomass and contents of ginsenoside Rc, ginsenoside Rg2 and ginsenoside Rg3 of Panax ginseng hairy roots was screened out via HPLC, which was identified as Schizophyllum commune through the morphological and molecular identification. On the base, we found the infection of the endophyte were obviously observed widely in the P. ginseng and the strain formed a stable relationship with P. ginseng hairy roots in parenchyma cells around through tissues embedding slicing, HE ammonium silver staining and immunofluorescence staining. On the other hand, elicitors of fungus 3R-2 can also significantly promote hairy root growth and contents of several ginsenosides, even several times higher than 3R-2 mycelium did. Moreover, S. commune 3R-2 mycelium and its elicitor could enhance the transcriptional activity of key genes during the ginsenosides biosynthetic pathway dramatically. Thus, endophyte S. commune 3R-2 and its elicitor change the chemical substance content by regulating the expression of genes involved in the secondary metabolite biosynthetic pathway.


Antioxidants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 922
Author(s):  
Sora Jin ◽  
Tae Kyung Hyun

The development of genetically engineered cell cultures has been suggested as a potential approach for the production of target compounds from medicinal plants. In this study, we generated PAP1 (production of anthocyanin pigment 1)-overexpressing ginseng (Panax ginseng C.A. Meyer) hairy roots to improve the production of anthocyanins, as well as the bioactivity (e.g., antioxidant and whitening activities) of ginseng. Based on differentially expressed gene analysis, we found that ectopic expression of PAP1 induced the expression of genes involved in the ‘phenylpropanoid biosynthesis’ (24 genes), and ‘flavonoid biosynthesis’ (17 genes) pathways, resulting in 191- to 341-fold increases in anthocyanin production compared to transgenic control (TC) hairy roots. Additionally, PAP1-overexpressing ginseng hairy roots exhibited an approximately seven-fold higher DPPH-free radical scavenging activity and 10-fold higher ORAC value compared to the TC. In α-melanocyte-stimulating hormone-stimulated B16F10 cells, PAP1-overexpressing ginseng hairy roots strongly inhibited the accumulation of melanin by 50 to 59% compared to mock-control. Furthermore, results obtained by quantitative real-time PCR, western blot, and tyrosinase inhibition assay suggested that the anti-melanogenic activity of PAP1-overexpressing ginseng hairy roots is mediated by tyrosinase activity inhibition. Taken together, our results suggested that the ectopic expression of PAP1 is an effective strategy for the enhancement of anthocyanin production, which improves the biological activities of ginseng root cultures.


2003 ◽  
Vol 107 (1-3) ◽  
pp. 493-504 ◽  
Author(s):  
Gwi-Taek Jeong ◽  
Don-Hee Park ◽  
Baik Hwang ◽  
Je-Chang Woo

2015 ◽  
Vol 39 (4) ◽  
pp. 384-391 ◽  
Author(s):  
Sang Myung Lee ◽  
Bong-Seok Bae ◽  
Hee-Weon Park ◽  
Nam-Geun Ahn ◽  
Byung-Gu Cho ◽  
...  

2002 ◽  
Vol 98-100 (1-9) ◽  
pp. 1129-1140 ◽  
Author(s):  
Gwi-Taek Jeong ◽  
Don-Hee Park ◽  
Hwa-Won Ryu ◽  
Woo-Tai Lee ◽  
Kyungmoon Park ◽  
...  

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