DOI Number: 10.5958/0974-1283.2019.00239.1 A Study on Antioxidative and Antioxidative Effects of lanceolate and Platycodon grandiflourum Extracts

Ji-sun Moon1, Seon-hee You2, Mi-yun Yoon2 1Dept. of Beauty Health Jungwon University85, Munmu-ro, Goesan-eup, Goesan-gun, Chungbuk 28024, ; 2Dept. of Cosmetology, Dongnam Health University 50 Cheoncheon-ro, 74-Gil, Jangan-gu, Suwon-si, Gyonggi-do 16328, Korea

Abstract The effectiveness of 70% ethanol (Ethanol, EtOH) extract of and Platycodon grandiflourum was investigated to verify its applicability as a functional cosmetic material. Antioxidant activity of antioxidant, total flavonoid content, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and human dermal fibroblast (HDF) Experiments were conducted to confirm the effect of collagen. Antioxidant activities of Codonopsis lanceolata and Platycodon grandiflourum extracts were increased by concentration of polyphenol and polabonoid effect, and no toxicity was observed in Human Dermal Fibroblast (HDF) cells. It was confirmed that collagen production was further increased in Duckweed extract. Dodeca and bellflower extracts are considered to be valuable as various functional cosmetic materials having antioxidative effect and anti - aging wrinkle improvement effect.

Keywords: Codonopsis lanceolata, Platycodon grandiflourum, Anti-oxidant, Cosmetic material, Collagen

Introduction be effective for genomic, genetic, anti-ulcer, antipyretic, sedative, anti-inflammatory, hypotensive and tonsillitis [4]. Codonopsis lanceolata is a wild herbaceous The efficacy of Codonopsis lanceolata has been reported perennial herb that is widely used for general food [6], serum lipid reduction [7], increased immunity [8], and [1] in Korea , and Japan. It is widely used for antioxidant effects of cell wall materials [9, 10]. Studies on food and medicine due to its unique taste and aroma. Platycodon grandiflourum include mutagenic inhibition Platycodon grandiflorum is an alimentary food used for effects of general ingredients such as minerals, amino [2]. food such as Codonopsis lanceolata . Platycodin A, acids and fatty acids [11] and platycodon grandiflourum C, and D, which are triterpenoid saponins, are known extracts [12], chemical composition and physiological to be the main ingredients. In addition, they contain activity [13], anti-carcinogenic and immunological inulin, betulin, stigmasterol, carbohydrate and fiber. activity of perennial Platycodon grandiflourum [14], Codonopsis lanceolata and Platycodon grandiflourum anticholinergic action [15], hypoglycemic action [16] and are the root of perennial herbaceous belonging improving cholesterol metabolism [17]. Many studies have to and widely grown in China and already been carried out using Codonopsis lanceolata Japan as Korea, and recent cultivation area has been and Platycodon grandiflourum extract, and most of expanded due to increased consumption of food and them have been reported as herbal medicine such as [3, 4] pharmacological health food . Codonopsis lanceolata herbal medicine. Codonopsis lanceolata and Platycodon has sterol, triterepenoid, cycloartenol, N-formylharman, grandiflourum ethanol extracts for the production and 1-carbomethoxy-β-carboline, perloyrine, norharman and development of functional cosmetics. Therefore, in volatile flavor components and has been reported to have this study, we will investigate the effect of 70% ethanol pharmacological effects such as serum lipid reduction extract from Codonopsis lanceolata and Platycodon and antioxidant effects. Codonopsis lanceolata has long grandiflourum on the antioxidant effect. In this study, [5] been used for food because of its unique flavor and Codonopsis lanceolata and Platycodon grandiflourum aroma. Platycodon grandiflourum contains triterpenoid will be developed as cosmetic functional materials. saponins, carbohydrates and fibrin. It has been known to 584 Medico-legal Update, July-December 2019, Vol.19, No. 2

Materials

Sample Preparation: In this study, Platycodon grandiflorum and Codonopsis lanceolata were purchased from pearls, dried, and then removed. The extracts were extracted with 70% ethanol extracted. Ethanol extraction was carried out by adding 70% ethanol at 10 times the volume of rosewood broth for 72 hours at room temperature. The extract was centrifuged at 8000 rpm for 20 minutes to separate the supernatant. 2, and vacuum decompression was performed to remove ethanol as an extraction solvent. After concentrating Figure 1: Standard curve of caffeic acid polyphenol with a decompressor and adding distilled water, it was content (R2 = 0.9916) stored at -70 ° C for 24 hours, lyophilized, and then the powder was collected and stored. The Total Flavonoid Content Measurement: Total flavonoid content was determined by Moreno et al. Cell Lin and Cell Cultuer: Human dermal fibroblast (2000) Method was modified and modified to measure. (HDF) cells were purchased from Korean Cell Line Bank, After diluting the sample to 5, 10, 15 and 20 μg/mL, 100 Korea and used in a high glucose Dulbecco’s modified Eagle’s medium (DMEM, Hyclone, USA) supplemented μL of the sample, 20 μL of 10% Al (NO 3) 3, 20 μL of 1 with 10% fetal bovine (Jeio Tech, Korea) supplemented M CH3COOK and 860 μL of ethanol were mixed in this with 1% penicillin/streptomycin (100 IU/50 mg/mL, order and left at room temperature for 40 minutes The Sigma-Aldrich) supplemented with serum (FBS; Sigma- supernatant was submerged in a centrifuge (Fine PCR, Aldrich, USA) and kept at 37 ° C And cultured. Korea), and 200 μL of the supernatant was dispensed into a 96-well plate. Absorbance was measured at 415 nm. The average value was measured by repeated Method experiment three times under the same conditions, and The Total polyphenol compound content the standard substance quercetin was used. The total measurement: The total polyphenol content was flavonoid content in the sample was determined by determined by modifying the Folin-Denis method of the substituting the absorbance value (Y axis) of the sample Association of Official Agricultural Chemists (AOAC) to into the standard curve of quercetin (0 to 100 μg/mL) produce molybdenum blue when the Folin-Ciocalteau’s to determine the concentration (X axis). The calibration phenol reagent is reduced by phenolic compounds in curves were prepared for each flavonoid component the sample And quantified using the principle. Samples using the standard concentration and the peak area as the were diluted at concentrations of 5, 10, 15, and 20 μg/ X axis and the Y axis, respectively. The calibration curve mL, and 400 μL of the sample and 400 μL of Folin- (R2) showing the straight line showed good linearity of Ciocalteau’s phenol reagent were mixed and reacted 0.9621 and used as a standard curve (Fig.2). at room temperature for 3 minutes. After reacting, 400 μL of 10% Na 2 CO 3 was added and reacted in a dark room for 60 minutes. 200 μL of the supernatant was dispensed into a 96-well plate at 760 nm and absorbance was measured. Caffeic acid was used as a standard substance. The total polyphenol content in the sample was determined by substituting the absorbance value (Y axis) of the standard curve sample of Caffeic acid (0-100 μg/mL) for the concentration (X axis). Calibration curves were prepared for the standard concentration of the substance on the X axis and the peak area on the Y axis. The calibration curve for each polyphenol component was used as a standard curve showing linearity of the Figure 2: Standard curve of quercetin flavonoid 2 correlation coefficient (R ) (Fig. 1). content (R2 = 0.9621) Medico-legal Update, July-December 2019, Vol.19, No. 2 585

DPPH Radical Scavenging Activity: DPPH radical antibody (anti-collagen type I-Ab mouse IgG) diluted scavenging activity was measured using the Blois (1958) 1000-fold with blocking solution was added to each well method. After dilution of the samples by concentration, and incubated at 37 ° C for 1 hour. After washing three 180 μL of 10 mM DPPH solution and 20 μL of sample times with 200 mL of PBS-T, 100 mL of each anti-mouse solution were mixed in a 96-well plate and reacted at IgG-antibody-conjugated secondary antibody (anti- 37 ° C for 30 min in the shade state. Then, Synergy mouse IgG-antibody) diluted in 4000-. After 1 hour, the HT (BioTek Instruments, USA) The absorbance was plate was washed three times with 200 mL of PBS-T, measured. The test was repeated three times under the and the substrate was treated with pH 9.8, p-nitrophenyl same conditions and the mean value was measured. As a phosphate in 9.7% diethanolamine buffer, and 0.5 mM positive control, ascorbic acid was used. MgCl2 in 200 mL of each well. And the absorbance was measured at a wavelength of 405 nm. DPPH radical Scavenging = (%) = 1– = O.D. at 517 nm of the group with extract × 100 Collagen production promotion (%) = O.D. at 517 nm of tthe group without extract O.D. at 540 nm of the group with extract × 100 O.D. at 540 nm of tthe group without extract Cell Viability Measurement: To investigate the effect of the extract on cell viability, a neutral red (NR) assay Statistical Processing: Statistical analysis was was used. Human dermal fibroblast (HDF) cells were performed using the Statistical Package for the Social seeded at a density of 3 × 10 4 cells/well in a 96-well Sciences (SPSS) window version 17.0 (IBM, USA). The plate and cultured for 24 hours. The cells were diluted results were expressed as mean ± standard deviation (M to 6.25, 12.5, 25, and 50 μg/And cultured for 48 hours. ± SD) Statistical significance was tested by Student’s After 48 hours, the medium was replaced with culture t-test and p <0.05 was considered statistically significant. medium supplemented with 1% NR solution (Sigma- All experiments were carried out three times or more Aldrich) in serum-free medium, incubated for 3 hours, independently under the same conditions, and the and then incubated with 10% formaldehyde (Sigma- experimental results were obtained and analyzed. Aldrich, USA) was added to each well, and 100 μL of each solution was dispensed into each well and fixed for Result and Discussion 20 minutes. NR desorbed solution (1% glacial acetic acid (Sigma-Aldrich, USA), 49% ethanol (Duksan, Korea) 1. Total Polyphenol Content Results: Natural and 50% distilled water) HT, BioTek Instruments, USA) antioxidants isolated from various natural products was used to measure the absorbance at 540 nm. The cell include ascorbic acid, tocopherols, carotenoids, viability of this experiment was calculated according to maillardreaction products, aminoacids, peptides, the following equation. phospholipids, and polyphenols and flavonoids. To determine the total polyphenol content of the Cell viability (%) = 70% ethanol extracts, the concentrations of 5, O.D. at 540 nm of the group with extract × 100 10, 15 and 20 μg/mL were measured. The total 2O.D. at 540 nm of the group without extract polyphenol content of each extract was calculated Measurement of Collagen Production Promotion: from the calibration curves prepared using caffeic HDF cells were cultured in 96-well plates at a acid as a standard solution. As a result, the total concentration of 1 × 10 4 cells/well and allowed to polyphenol content of CIE extract at 20 μg/mL stand on the bottom for 24 hours. After confirming cell was 150.3 mg/100 g and that of PGE extract was adhesion, diluted samples were added and cultured for 74.9 mg/100 g (Fig. 3). The total polyphenol 48 hours. After incubation, the culture supernatant was contents in the bellflower extracts were increased transferred to a 50-mL 96-well plate, and 100 mL of in a concentration dependent manner. The results carbonate coating buffer (Na2CO3 + NaHCO3 + 10% were higher than those of the 70% ethanol NaN3, pH 9.5) was added and fixed at 4 ° C for 24 hours. extracts. The extraction with organic solvents was After washing three times with 200 mL of PBS-T, 100 more effective than the extraction with distilled mL of blocking solution (PBS, 0.1% BSA) was blocked water as the solvent, The solubility of the polar at 37 ° C for 1 hour. After blocking, 100 mL of primary solvent is considered to be high. 586 Medico-legal Update, July-December 2019, Vol.19, No. 2

Figure 3: Total polyphenol content of Codonopsis Figure 5: The DPPH radical scavenging activity of of lanceolata et Platycodon grandiflourum extract. Codonopsis lanceolata et Platycodon grandiflourum Values represent mean ± standard deviation of three extract. After treating Codonopsis lanceolata et measurements. CIE: Codonopsis lanceolata extract, Platycodon grandiflourum extract at 1, 10, 30 and PGE: Platycodon grandiflourum extract 50 mg/mL, High density dependent DPPH radical 2. Total Flavonoids Content Results scavenging activity was identified. The results are presented as the Mean ± S.D. of three independent experiments. CIE: Codonopsis lanceolata extract, PGE: Platycodon grandiflourum extract 4. Measurement of cell viability on HDF cells using Neutral red (NR) assay: In order to investigate the effect of CIE and PGE extracts on the cell viability of human fibroblasts, HDF cells, the concentrations of CIE extract and PGE extracts at 5, 10, 20, 50, and 100 μg/mL with 70% ethanol Figure 4: Total flavonoid content of Codonopsis and cultured for 48 hours to perform NR assay. In lanceolata et Platycodon grandiflourum extract. the case of CIE extract, the cell proliferation rate Values represent mean ± standard deviation of three was increased with increasing concentrations of 5, measurements. CIE: Codonopsis lanceolata extract, 10, 20, 50, and 100 μg/mL. Cell survival rate was PGE: Platycodon grandiflourum extract higher than 100%. The cell viability was found to be 119% for CIE and 101% for PGE extract at 100 3. DPPH radical Scavenging activity Results: Free radicals are known to be the cause of aging μg/mL concentration of marigold and calendula reaction with human body proteins and lipids. extract (Fig. 6). Free radical scavenging ability by DPPH method is widely used for verifying the antioxidant ability of antioxidant by reactive oxygen species (ROS). Figure. 5 shows the results of DPPH radical scavenging activity. The ascorbic acid used as a positive control showed a radical scavenging activity of 120% at a concentration of 1% and a CIE extract 0.5%, 109.0% of the radical scavenging activity, and 92.0% of the scavenging activity at the concentration of 0.5% of the PGE extract. Thus, it was confirmed that the radical scavenging Figure 6: Effect of CIE et PGE extract on cell activity of the CIE extract was higher than that viability in HDF cells. Results is presented as of the PGE extract. As a result of measuring the mean ± SD, and three independent experiments DPPH radical scavenging activity, the DPPH were performed. The results are presented as the scavenging activity showed a radical scavenging Mean ± S.D. of three independent experiments. CIE: activity in a concentration dependent manner as Codonopsis lanceolata extract, PGE: Platycodon the concentration of the extract increased. grandiflourum extract Medico-legal Update, July-December 2019, Vol.19, No. 2 587

5. Measurement of collagen production 2. The cell viability and cytotoxicity of HDF cells promotion: In order to observe the change of were examined. The cytotoxicity was not observed collagen production promoting ability of CIE and in all the 70% ethanol extraction methods at all PGE extracts on HDF cells of the sample, CIE and concentrations up to 5 ~ 100 mg/mL, and high PGE extracts were treated with HDF cells for 48 survival rate was confirmed. hours, and the culture supernatants were analyzed 3. Collagen production was promoted in both by ELISA (Enzyme-Linked Immunosorbent extracts of CIE and PGE extracts. At the Assay) The results are shown in Figure 7. concentration of 100 mg/mL, the highest increase Compared with the untreated control group, of collagen production was observed at 109.62%, collagen production was promoted by CIE and PGE and collagen increased in a dose dependent extracts. At the concentration of 50 mg/mL of CIE manner. Compared with the positive control group, vitamin C, a similar amount of collagen extract, the highest increase of collagen production production was observed at a concentration of was observed at 109.62%, and collagen was 20 mg/mL of vitamin C and 50 mg/mL of CIE increased in a dose dependent manner(**p<.01, extract. These results suggest that CIE and PGE ***p<.001). Compared with the positive control extracts may be applicable as a cosmetic material group, vitamin C, the concentration of vitamin containing CIE and PGE extract. Considering the m C at 20 g/mL and the concentration of CIE and results of the present study, CIE and PGE extracts m PGE extract of 20 g/mL showed similar amounts showed antioxidant activity, cell viability and of collagen production. These results suggest that collagen effect. As a result, CIE and PGE extracts CIE and PGE extracts may be useful as cosmetic may be useful as functional cosmetic materials. materials containing CIE and PGE extract. Ethical Clearance: Not required

Source of Funding: Nil

Conflict of Interest: Nil

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