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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Plant Resources
Journal Basic Information
Journal DOI :
The Plant Resources Society of Korea
Editor in Chief :
Volume & Issues
Volume 21, Issue 6 - Dec 2008
Volume 21, Issue 5 - Oct 2008
Volume 21, Issue 4 - Aug 2008
Volume 21, Issue 3 - Jun 2008
Volume 21, Issue 2 - Apr 2008
Volume 21, Issue 1 - Feb 2008
Selecting the target year
Antioxidant Activities of Methanol Extracts from Root Parts of Korean Salad Plants
Chon, Sang-Uk ; Kim, Tae-Soon ; Shin, Ji-San ; Boo, Hee-Ock ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 413~419
Phenolics level, total flavonoid content, and antioxidant were determined from the methanol extracts of the eight medicinal plants using roots. Total phenolics were found as the highest levels in the methanol extracts of Arctium lappa, and followed by Youngia sonchifolia and Cirsium japonicum. Total amount of the each phenol compounds were detected in C. japonicum extracts (
) as the greatest component, and followed by A. lappa (
) and Y. sonchifolia (
). Total flavonoid content showed the highest amount in methanol extracts from A. lappa (68.1 mg
) and followed by Y. sonchifolia (11.2 mg
) Lycoris radiate extracts (87.2%) had the highest nitrite scavenging activity and followed by A. lappa (81.5%) and Y. sonchifolia (77.5%). Methanol extracts of A. lappa at 25 mg
exhibited the highest DPPH radical scavenging activity by 90.8%, even though less activity than synthetic antioxidants Vitamin C or butylated hydroxytoluene (BHT). Level of polyphenols was highly correlated with anti oxidative activity (
= 0.85). The results suggest that several medicinal plants selected had the potent biological activities, and that their activities were differential depending on plant species.
Phytosterols and Lignans from the Sesame Dregs of Sesamum indicum
Kim, Hye-Min ; Lee, Jeong-Min ; Park, Jun-Yeon ; Lee, Sul-Lim ; Han, Saem ; Kim, Hyun-Young ; Son, Dong-Wook ; Choi, Sang-Yoon ; Lee, Sang-Hyun P. ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 420~426
Phytochemical investigation of the sesame dregs of Sesamum indicum was conducted by open column and prep-HPLC chromatography. Two phytosterols (1 and 2) and two lignans (3 and 4) were isolated from the MeOH extracts of sesame dregs, and identified as
-sitosterol (1), daucosterol (2), sesamin (3), and sesamolin (4) by spectral analysis. Although these compounds were already isolated from sesame, it is important that they were still main phytochemical components in the sesame dregs.
Two new naturalized species from Korea, Andropogon virginicus L. and Euphorbia postrata Aiton
Yang, Jong-Cheol ; Park, Soo-Hyun ; Lee, Jeong-Hae ; Lee, You-Mi ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 427~430
Here we reported two unrecorded naturalized species from Korean flora. Andropogon virginicus L. of Graminaeae and Euphorbia postrata Aiton of Euphorbiaceae are collected from Dong-gu, Ulsan-si and Sinjindo-ri, Taean-gun, Chungcheongnam-do respectively. A. virginicus L. was easily distinguishable from Themeda triandras var. japonica Makino by keel on glume, 2-4 racemes and long hairy rachis. Thus, the new Korean name, 'Na-do-sol-sae', was given. E. postrata Aiton was cleary distinguished from related taxa by hairs on only edges of fruits. The new Korean name, 'Nu-un-ttang-bin-dae' was given considering the species epithet. Descriptions, illustrations and photographs showing habitat were given.
Anticariogenic activity of piceatannol isolated from Callistemon citrinus fruit against Streptococcus mutans
Park, Young-Ki ; Lee, Moon-Ho ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 431~434
Dental caries is the destruction of the enamel of teeth by Streptoccus mutans. S. mutans has been isolated from human dental plaque and is associated with the initial development of enamel lesions. We have studied the antibacterial action of the fruit of Callistemon citrin us against a cariogenic bacterium, S. mutans. From the fruit of C. citrinus, piceatannol (3,3',4',5-tetrahydroxystilbene) was isolated by repeated column chromatography with
and Sephadex LH-20. Its structure was elucidated by instrumental analysis using 1D-NMR, 2D-NMR and EI-MS. This compound was isolated from the fruit of C. citrin us for the first time. The anticarcinogenic activity of this compound was determined by using agar well-diffusion method and minimal inhibition concentration (MIC).
Comparative Stability of vit E isomers Extracted from Unsaponifiable Fractions of Rice Bran Oil under Various Temperature and Oxygen Conditions
Lee, Young-Sang ; Park, Soon-Ryang ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 435~439
Due to the fact that tocopherols and tocotrienols have antioxidant and anticancer properties, the commercial utilization of unsaponifiable fractions in rice bran is increasing. These nutraceutical compounds, however, are fairly unstable and readily break down when exposed to oxygen or lighting conditions. To compare the relative sensitivity of vit E isomers to heat and oxygen, concentrated unsaponifiable fractions extracted from crude rice bran oil were exposed to various temperature, oxygen (nitrogen-balanced), and bathing solvent conditions and resultant concentration changes in
-tocopherols (T) and tocotrienols (T3) were evaluated. Each isomer exhibited different heat stability. Among them,
-T3 degraded more rapidly compared to other vit E isomers while
-T was the most stable isomer. Oxygen level also showed significant impact on each isomer's stability where severe reductions of
-T (by 20%) and
-T3 (by 29%) were observed under 2% oxygen conditions, while under 0% oxygen conditions no degradation could be observed even after exposure to
for 4 hours. When various blending solvents were mixed with concentrated unsaponifiable fractions, organic solvents such as isooctane and hexane were more effective in maintaining the stability of
- T3 compared to edible oils, among which com oil was more efficient than soybean and rice bran oils.
Changes of Catbohydrate and Tuber Production on Red and White Skinned Tubers of Jerusalem Artichoke (Helianthus tuberosus L.)
Kim, Sang-Kuk ; Park, Shin-Young ; Lim, Jae-Ha ; Choi, Hong-Jib ; Lee, Sang-Chul ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 440~443
This study was aimed to investigate the difference for carbohydrate accumulation in both the red skinned tuber and white skinned tuber of Jerusalem artichoke (Helianthus tuberosus L.), and to evaluate their tuber yield of seven lines collected from Korea. Jerusalem artichoke tubers were divided into two groups regarding to their skinned colors. Red skinned tuber collected from Euisung region showed the lowest tuber yield as 3,100 kg per 10a, otherwise white skinned tuber collected from Imdong region resulted in the highest tuber production as 6,300 kg per 10a among the six kinds of white skinned tubers. Yield of white skinned tuber was higher than that of red skinned tuber. It was inferred from the result that carbohydrate accumulation in white skinned tuber was highly increased compared to red skinned tuber since after early tuber enlargement.
Adventitious Root Culture and In Vitro Production of Dioscin from Smilax china L.
Kwon, Soon-Tae ; An, Ju-Lee ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 444~448
An adventitious root formation protocol from Smilax china L. was established for in vitro production of dioscin, a steroidal saponin having various bioactivities such as anticancer, antifungal, antiviral, and antiobesity. Optimal medium for root initiation from leaf explant was MS medium containing
of sucrose supplemented with
NAA. The induction of adventitious roots from in vitro initiated root segments was most favorable to MS liquid medium with
NAA. Among the 20 different adventitious roots originated from different plants, strain No. 10 was selected based on production ability of dioscin, and its stability through the successive suspension culture. The maximum growth stage of adventitious roots was noticed at 5 weeks after subculture while that of dioscin production in the adventitious root was at 7 weeks after subculture in suspension culture system. These results provide that suspension culture of adventitious roots of Smilax china L. have a potential for in vitro mass production of dioscin.
Buddleja officinalis prevents the normal cells from oxidative damage via antioxidant activity
Hong, Se-Chul ; Jeong, Jin-Boo ; Jeong, Hyung-Jin ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 449~456
The flowers of Buddleja officinalis are used to treat sore and damaged eyes, a condition which is similar to skin wounds. However, whether it has any protective effect on oxidative DNA damage and cell death induced by hydroxyl radical remains unclear. In this study, we evaluated the protective effects of the extracts against oxidative DNA and cell damage caused by hydroxyl radical. DPPH radical, hydroxyl radical, hydrogen peroxide and intracellular ROS scavenging assay, and
chelating assay were used to evaluate the antioxidant properties. phi X 174 RF I plasmid DNA and intracellular DNA migration assay were used to evaluate the protective effect against oxidative DNA damage. Lastly, MTT assay and lipid peroxidation assay were used to evaluate the protective effect against oxidative cell damage. It was found to prevent intracellular DNA and the normal cells from oxidative damage caused by hydroxyl radical via antioxidant activities. These results suggest that Buddleja officinalis may exert the inhibitory effect on ROS-induced carcinogenesis by blocking oxidative DNA damage and cell death.
Effects of Gal geun (Puerariae Radix) on lowering lipid and antioxidant
Lee, Eun ; Kang, Jin-Ho ;
Korean Journal of Plant Resources, volume 21, issue 6, 2008, Pages 457~461
Effects of Gal geun (Puerariae Radix) EtOH ext. on lipid lowering and antioxidant were investigated in hyperlipidemic rat. Concentration of FFA and triglyceride in plasma showed a tendency to decrease in Gal geun ext. groups. Concentration of plasma total cholesterol and LDL-cholesterol decreased in Gal geun ext. groups. However the concentration of HDL-cholesterol showed no significantly different in all treatment groups. Concentration of liver total cholesterol and triglyceride showed a tendence to decrease in Gal geun ext. groups. Concentration of plasma and liver TBARS showed a low values in Gal geun ext. groups. The values of GSH-Px and SOD activity showed no significantly different among all the treatment groups. However the values of SOD and CAT activity showed a high value in the Gal geun ext. groups.