Chang, Jun Pok;Doh, Eun Soo;Kil, Ki Jung;Yang, Jae Kyung;Yun, Chung Weon;Lee, Gun Hee;Jung, Yun Hae;Ji, Yoon Sun;Kim, Bo Ram;Choi, Myung Suk
Journal of Korean Society of Forest Science
/
v.100
no.3
/
pp.408-416
/
2011
Leaf and bulb of wild garlic (Allium victorials var. platyphyllum) from Ulleung Island and Gangneung region were extracted with water and 70% ethanol and investigated on its antioxidative activity. Total polyphenol content of Ulleung island wild garlic was higher than that of Gangneung region. Total polyphenol content in bulb was high compared to content of the leaves, and 70% ethanol extract of Ulleung Island leaf was high in 72.50 mg/g. Flavonoid content in leaf was higher than that of bulb, 70% ethanol extract of Ulleung Island leaf was high in 73.30 mg/g. Electron donating activity of 70% ethanol extract from Ulleung island and water extracts (55.13%) from Gangneung were higher than those of other extracts. Bulb extracts on electron donating activity were higher than those of the leaf extracts. SOD like activity of extracts was high in 70% ethanol extract of wild gallic leaf cultivated at Gangneung. Hydroxy radical scavenging activity of wild gallic was high in leaf extracts compared to activity of bulb extracts. Hydroxy radical scavenging activity (58.85%) of Ulleung island wild gallic leaf extracts was higher than that of the wild gallic leaves of Gangneung. Lipid peroxidation inhibitory activity was both high in water and 70% ethanol leaf extracts of Ulleung island and Gangneung region, especially, 70% ethanol extract of leaves from Ulleung island was the highest 73.33%. These results suggest that extracts from wild garlic could be used as an antioxidative functional food source.
Park, Jong Woo;Lee, Chang Hoon;Jeong, Chan Young;Kang, Sang Kuk;Ju, Wan-Taek;Kim, Seong-Wan;Kim, Nam-Suk;Kweon, Hae Yong;Kim, Kee Young
Journal of Life Science
/
v.31
no.11
/
pp.1010-1018
/
2021
Although varieties of silkworms, which have recently attracted attention as a health functional food, are being produced, studies on the differences in the functionality of different silkworm varieties are insufficient. Therefore, in this study, the antioxidant activities of different silkworm breeds bred in domestic farms were analyzed, and the potential for their cultivation as specialized varieties with excellent antioxidant function was investigated. To compare antioxidant activity, four varieties of silkworms, white Bakokjam, Golden silk, Yeonokjam, and Hanseongjam, were bred; water and ethanol extracts of these silkworms were prepared on the 3rd and 5th days of the 5th instar larval stage. The highest extraction yield was seen for the water extract from the Golden silk variety on the 3rd day of the 5th instar; the highest total phenolic compound and flavonoid contents were observed for the water extract (86.11±4.04 ㎍/mg GE) and 70% (v/v) ethanol extract (46.70±2.81 ㎍/mg QE). Bakokjam and Yeonokjam exhibited DPPH radical scavenging activity of up to 78% and showed the highest nitrite scavenging activity (85%) at pH 1.2. The maximum SOD-like activity of Yeonokjam was about 47%. Furthermore, 48 ㎍/ml of the Yeonokjam extract showed a reducing power of 0.7 abs, which was the best among the four varieties. Considering these results, the Yeonokjam (on the 3rd day of the 5th instar) had antioxidant activity and represents a silkworm cultivar that would be suitable for cultivation as a health food.
This study was carried out to evaluate the effect of fermentation by B. subtilis (BPLE), L. brevis (LPLE), S. cerevisiae (SPLE) and C. militaris (CPLE) on the antioxidant activity of Protaetia brevitarsis larvae fed with mushroom substrates (king oyster mushroom). The total polyphenol content of Protaetia brevitarsis larvae (PLE), BPLE, LPLE, SPLE and CPLE were 58.07±0.67, 83.33±0.98, 79.21±1.32, 61.02±0.87 and 57.90±1.02 mg GAEs/extract g, respectively. The flavonoid contents of the PLE, BPLE, LPLE, SPLE and CPLE were 17.35±1.57, 19.49±0.95, 16.90±1.57, 18.12±0.95 and 16.99±0.95 mg QEs/extract g, respectively. The DPPH radical scavenging activity showed no significant difference between the PLE, BPLE, LPLE, SPLE and CPLE at a concentration of 0.2 mg/ml. However, at a concentration of 0.4 mg/ml or more, the DPPH radical scavenging activity of the BPLE and LPLE was higher than that of the PLE. The reducing power of the BPLE and LPLE was also higher than that of the PLE, and more than twice as high at a concentration of 0.8 mg/ml or more. The ORAC value of the BPLE (79.77±0.82 uM TEs/extract g) was higher than that of the PLE (61.34±0.97 uM TEs/extract g). A WST-1 assay of the RAW 264.7 cells indicated that the PLE, BPLE, LPLE, SPLE and CPLE showed no cytotoxicity.
Kim, Ha-Neul;Yu, Seok-Yeong;Yoon, Won-Byong;Jang, Sun-Min;Jang, Yong-Jin;Lee, Ok-Hwan
Korean Journal of Food Science and Technology
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v.46
no.1
/
pp.73-78
/
2014
This study investigated the nutritional components and physicochemical characteristics of Jerusalem artichoke. The moisture, crude protein, crude fat, crude ash and carbohydrate content of the Jerusalem artichoke were $5.06{\pm}0.08$, $8.30{\pm}0.26$, $0.70{\pm}0.16$, $5.04{\pm}0.03$, and 80.90%, respectively. The total sugar content of Jerusalem artichoke was $50.48{\pm}1.11$ mg/g, and the Hunter color space coordinates were $L=94.16{\pm}0.03$, $a=0.32{\pm}0.01$ and $b=0.30{\pm}0.01$. The water binding capacity and water activity of the Jerusalem artichoke were $4.06{\pm}0.16$ g/g and $0.245{\pm}0.005$, respectively. The total amino-acid content of the Jerusalem artichoke was $1.337{\times}10^4$ mg/kg, and essential amino acid was 2,737 mg/kg. The total free sugar of the Jerusalem artichoke was 4.12%. Linoleic acid (0.21%) was found to be a common fatty acid in the Jerusalem artichoke. Among the minerals, potassium (2,489 mg%) was found to be the most abundant in the Jerusalem artichoke. The total phenol and flavonoid contents were $3.06{\pm}0.07$ mg GAE/g and $1.89{\pm}0.03$ mg QE/g, respectively. The vitamin C content of the Jerusalem artichoke was $3.43{\pm}0.07$ mg%.
Journal of the Korean Society of Food Science and Nutrition
/
v.43
no.8
/
pp.1197-1206
/
2014
This study compared and analyzed the physiochemical and quality characteristics of young radish kimchi made with YR-FNC or YR-GC cultivated by organic farming as well as kimchi made with young radish cultivated by chemical composting/general farming (YR-Control). YR-Control showed higher contents of water and crude protein than YR-FNC and YR-GC kimchi but lower contents of crude ash, dietary fiber, and vitamin C. YR-FNC and YR-GC kimchi also showed higher contents of P and Cu than YR-Control but lower contents of N, K, Ca, Mg, Fe, and Zn. YR-Control fermentation progressed faster than that of YR-FNC or YR-GC after 24 days, and YR-Control more rapidly reached an appropriate pH. On the other hand, YR-FNC and YR-GC kimchi fermentation progressed slow and did not reach a pH level below 5.3. For period of fermentation, YR-Control and YR-FNC kimchi showed no significant difference in reducing sugar content, whereas that of YR-GC kimchi decreased significantly after 24 days of fermentation (P<0.002). YR-FNC and YR-GC kimchi showed 1.5~3 times higher total polyphenol and flavonoid contents than YR-Control at the beginning of fermentation, whereas YR-Control and YR-FNC kimchi showed a significant increase in total polyphenol and flavonoid contents during the fermentation period. By day 7 of fermentation, YR-FNC kimchi showed higher contents of lactic acid bacteria and total microbes than YR-Control. In the sensory evaluation, YR-FNC and YR-GC kimchi showed higher preference values than YR-Control. Therefore, kimchi made from young radish cultivated by organic farming has a longer freshness period than control kimchi and is characterized by excellent sensory quality, increased physiological contents, and improved beneficial health effects.
Journal of the Society of Cosmetic Scientists of Korea
/
v.49
no.4
/
pp.313-321
/
2023
Platycodon grandiflorus (P. grandiflorus) flower is a perennial plant belonging to the family Campanulaceae and has many excellent pharmacological effects, so it has been used as a medicinal ingredient since ancient times. In addition, anthocyanin is a purple or blue natural pigment contained in plant flowers and fruits, and is known as a powerful antioxidant. The purpose of this study was to confirm the dermatological functionality of P. grandiflorus flower extract and the value of the bluish anthocyanin contained in flowers as a cosmetic material as a natural pigment. Firstly, 50% ethanol and 80% ethanol were added to the P. grandiflorus flower and extracted under reflux for 4 h at 25, 60, and 80 ℃, and the pH of each treatment group was similar. Based on the anthocyanin content and chromaticity (E*ab), 50% ethanol 60 ℃ extraction conditions showing the color development most similar to the natural color of the P. grandifloras flower were selected, and a sample was prepared by concentrating and lyophilizing. The analysis results showed that the total phenol, total flavonoid, and total anthocyanin contents were in the ranges of 23 ㎍/mL, 16 ㎍/mL, and 0.17 ㎍/mL, respectively. The P. grandiflorus flower extract suppressed the production of nitric oxide (NO) and interleukin-6 (IL-6) in lipopolysaccharide (LPS) induced RAW264.7 cells. Furthermore, the P. grandiflorus flower extract showed wound healing effects through the promotion of skin cell migration in TNF-α stimulated human keratinocytes. The stability of anthocyanin and extract color was studied during a storage period of 50 days at various temperatures (4 ℃, 25 ℃, and 45 ℃). Color values (L, a, and b) of the P. grandiflorus flower extract changed over 50 days, whereas the bluish-purple color of the extract was stabilized using 5% maltodextrin. These results suggest that P. grandiflorus flower extract may be useful as a natural cosmetic pigment.
Journal of the Korean Society of Food Science and Nutrition
/
v.44
no.4
/
pp.557-563
/
2015
To observe the functionality of Fuji apples, this study compared and analyzed the general and anti-oxidative components of apples based on production region. This study found that DPPH radical scavenging activities among parts of apple from the Chungju region were 82.84% in peels, 26.98% in peel-flesh, and 18.89% in apple flesh, and these values were lower than those from other regions (P<0.01). Antioxidative was 48.64% in the apple core, which was higher than those in peel-flesh and apple flesh. ABTS radical scavenging activity was highest (79.80%) in peels of apples from the Andong region, whereas values in peel-flesh and apple flesh were highest in apples from the Yesan region (P<0.01). For antioxidative activities in the apple core, apples from the Chungju region showed more than twice the value (52.34%) of other regions. Phenol contents in peels were significantly high [12.03 mg gallic acid equivalent (GAE)/g] in apples from the Muju region, whereas phenol contents in peel-flesh were high (6.01 mg GAE/g) in those from the Andong region. Antioxidative activity in apple flesh was significantly high (5.57 mg GAE/g) in apples from the Yesan region. For antioxidative activities in the apple core, apples from Chungju region showed a relatively high value (6.53 mg GAE/g) (P<0.01), although values were low in apple peel, peel-flesh, and apple flesh. For the combined amount of flavonoids, values in apples from the Yesan region were high in apple peel, peel-flesh, and apple core [56.23 mg quercetin equivalent (QE)/g (P<0.01), 4.05 mg QE/g (P<0.05), and 4.00 mg QE/g (P<0.01), respectively], whereas flavonoid content in apples from the Andong region was high in apple flesh [4.35 mg QE/g (P<0.01)]. The results show that anti-oxidative activities were relatively higher in apple peel than flesh.
Nutritional components of 4 kinds of red seaweeds, Meristotheca papulosa, Chondrus ocellatus, Gracilaria verrucosa, Gigartina tenella, were investigated to elucidate their functionality. Antioxidant activity and nitrite scavenging activity were analyzed from 70% ethanol extracted from these red seaweeds. Large difference in ash contents was found to exhibit among all samples analyzed in this study; $9.8{\pm}0.2g/100g$ for Gracilaria verrucosa and Gigartina tenella for $17.8{\pm}0.6g/100g$. While its crude fiber content was almost the same as those in other sample within a range between $2.0{\pm}0.4g/100g$ and $6.0{\pm}0.7g/100g$. Phenolic compounds content of Gracilaria verrucosa was also the highest as $78.4{\pm}1.0mg/g$, while the total flavonoids contents of Chondrus ocellatus and Gracilaria verrucosa were $14.9{\pm}0.5mg/g$ and $13.9{\pm}0.8mg/g$, respectively. These amounts were two folds higher than Meristotheca papulosa and Gigartina tenella. The total content of minerals was the highest in Meristotheca papulosa(12,107.7 mg/kg). The amount of glutamic acid was relatively high despite of small variation in measured levels of composition amino acid ($49.1{\sim}125.6mg/g$) for most samples investigated. SOD-like ability was significantly increased with increasing sample concentration, but its activity was lower. Gigartina tenella with highest electron donation ability exhibited increases in activity as $53.96{\pm}0.98%$ in concentration of 250 ${\mu}g/ml$ and $70.52{\pm}1.09%$ in 1000 ${\mu}g/ml$, respectively. In case of concentration of 100 ${\mu}g/ml$, particularly, the level of hydroxy radical scavenging activity were $57.87{\pm}1.70{\sim}62.07{\pm}0.87%$ which was significantly higher activity than ascorbic acid and BHT. Nitrite scavenging activity was the highest in Gracilaria verrucosa. Its activity was also increased from $24.04{\pm}1.9{\sim}27.52{\pm}0.82%$ in $100{\sim}500{\mu}g/ml$ concentration tp $34.81{\pm}1.36%$ in concentration of 1000 ${\mu}g/ml$.
Jeong, Yoo Min;Kim, Ho Jae;Lee, Su Hyun;Jang, Do Yun;Choi, Yae Chan;Min, Na Young;Gong, Bong Ju;Park, Soo Nam
Journal of the Society of Cosmetic Scientists of Korea
/
v.40
no.4
/
pp.391-402
/
2014
In this study, the antioxidative effects and component analysis for the extracts of Rumex acetosa L. were investigated. All experiments were performed with 50% ethanol extract, ethyl acetate fraction and aglycone fraction obtained from dried R. acetosa L.. Free radical scavenging activities (1,1-diphenyl-2- picrylhydrazyl) size of, in the order of aglycone fraction > ethyl acetate fraction > 50% ethanol extract, aglycone fraction ($45.10{\mu}g/mL$) showed the highest radical scavenging activity. Reactive oxygen species (ROS) scavenging activity (total antioxidant capacity, $OSC_{50}$) on ROS generated in $Fe^{3+}-EDTA/H_2O_2$ system was also, in the order of ethyl acetate fraction> aglycone fraction> 50% ethyl acetate fraction, ethyl acetate fraction ($2.68{\mu}g/mL$) was shown a great antioxidant capacity. The total antioxidant capacity of the ethyl acetate fraction was found to be greater than L-ascorbic acid, known as a typical hydrophilic antioxidant ($6.88 {\mu}g/mL$). The cellular protective effects of R. acetosa L. extracts on the $^1O_2$-induced cellular damage of human erythrocytes were exhibited at all concentration-dependent ($1{\sim}25{\mu}g/mL$). Especially, aglycone fraction (${\tau}_{50}$, 104.80 min) in $25{\mu}g/mL$ showed the most protective effect among extracts. Components of the ethyl acetate fraction obtained from R. acetosa L. extracts were analyzed by TLC, HPLC chromatogram, LC/ESI-MS/MS. As a result, the ethyl acetate fraction contained several flavonoids, such as orientin, isoorientin, vitexin, isovitexin. These results indicate that the R. acetosa L. extracts can be used as antioxidants in biological systems, particularly skins exposed to UV radiation by quenching and/or scavenging $^1O_2$ and other ROS. Thus, the extracts of R. acetosa L. could be applicable to new anti-aging cosmeceutical ingredients.
Kim, Jong-Pil;Yang, Yong-Shik;Kim, Jin-Hee;Lee, Hyang-Hee;Kim, Eun-Sun;Moon, Yong-Woon;Kim, Jin-Young;Chung, Jae-Keun
Korean Journal of Food Science and Technology
/
v.44
no.4
/
pp.441-446
/
2012
We investigated the chemical properties and antioxidant activities of sword bean (SWB) and compared it to soybean (SB) and black soybean (seoritae, BSB). The value of vitamin C, vitamin A, crude fat, and crude protein in SWB was 25.5, 0.37 mg/kg, 1.2, and 25.6%, respectively. The crude fat content (1.2%) in SWB was very low in comparison with those of SB (16.5%) and BSB (16.1%). In 16 free amino acids investigated, the histidine content (9.2%) was high in SWB, followed by SB (3.0%) and BSB (2.9%). Total flavonoid content of SWB (493.2 mg/100 g) was significantly higher than those of SB (71.8 mg/100 g) and BSB (97.5 mg/100 g). Total polyphenol content of SWB (1,152.0 mg/100 g) was not significantly different from that of SB (1,165.7 mg/100 g) but lower than that of BSB (1,298.6 mg/100 g). DPPH radical scavenging activity ($SC_{50}$, 50% scavenging concentration) of SWB was 13.1 ${\mu}g/mL$, whereas that of positive control (${\alpha}$-tocopherol) was 8.3 ${\mu}g/mL$.
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