Kim, Jun-Han;Park, Jun-Hong;Park, So-Deuk;Choi, Seoing-Yong;Seong, Jong-Hwan;Moon, Kwang-Deog
Korean Journal of Food Science and Technology
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v.34
no.4
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pp.617-624
/
2002
Health drinks were prepared with freeze dried powder of 60% ethanol extract (60% EFDP), 60% ethanol extract after hydrolysis with amyloglucosidase (60% AEFDP) and 80% ethanol extract (80% EFDP) from roasted safflower seed. Quality characteristics and antioxidative properties were investigated. Yield of freeze dried powders were ranged in $4.67%{\sim}5.62%$. Brix, pH and titratable acidity of safflower drinks were ranged in $11.4{\sim}14.2%$, $2.83{\sim}3.34$ and $0.09{\sim}0.91%$, respectively. Content of total phenolic compounds was much more in 80% EFDP (117 mg/g) and safflower drink-I (SD-I, 440 ppm) than others. Content of total flavonoid was observed in higher level in 60% EFDP (49 mg/g) and safflower drink-V (SD-V, 138 ppm) than others. Antioxidant compounds such as N-[2-(5-hydroxy-1H-indol-3-yl)ethyl]ferulamide(serotonin-I) and N-[2-(5-hydroxy-1H-indol-3yl)ethyl]-p-coumaramide(serotonin-II) exhibited higher contents of 21.09 ppm, 33.56 ppm in 60% EFDP and of 3.83 ppm, 5.81 ppm in safflower drink-II (SD-II) than others. Content of acacetin was much more in 80% EFDP (13.53 ppm) and safflower drink-IV (SD-IV, 1.14 ppm) than others. From the DPPH test to measure antioxidant activity, it was shown that 80% EFDP and SD-I have stronger scavenging activities of 94.58% and 94.88%, respectively, while BHA standard solution does 93.88%. Among drinks, SD-II was revealed to have highest level on overall acceptance, color and flavor through sensory evaluation. These results induced that safflower seed can be used as natural antioxidant and functional food material.
Yeon Ju An;Jung In Kim;Sang Woo Kim;Sungup Kim;Eunyoung Oh;Jeongeun Lee;Eunsoo Lee;Eunae Yoo;Jung-Sook Sung;Myoung Hee Lee;Choon-Song Kim;Min Young Kim
The Korean Journal of Food And Nutrition
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v.36
no.5
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pp.379-386
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2023
The objective of this study was to investigate the distribution of functional compounds in perilla leaves of various genetic resources and their antioxidant activities. A comprehensive analysis of functional compounds was conducted for 90 genetic resources, focusing on total polyphenol content (TPC), total flavonoid content (TFC), individual phenolic content (IPC), and lutein. Their antioxidant activities were then analyzed based on their radical scavenging capacity using ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and DPPH (2,2-diphenyl-1-picrylhydrazyl). The TPC content exhibited a range of 13.19 to 35.85 mg gallic acid equivalent/g, whereas the TFC content varied from 11.74 to 46.51 mg catechin equivalent/g. Total IPC was detected in a range of 6,310.98 to 40,491.82 ㎍/g. Lutein was detected at levels between 70.97 and 597.97 ㎍/g. ABTS and DPPH radical scavenging activities of perilla leaves ranged from 30.39 to 58.58 mg trolox equivalent (TE)/g and from 7.74 to 46.56 mg TE/g, respectively. Furthermore, correlation analysis demonstrated that rosmarinic acid, a phenolic acid, exhibited a significantly positive correlation with antioxidant activity. These findings suggest that various genetic resource of perilla leaves could effectively mediate antioxidant capacity. Results of this study provide valuable information for use of perilla leaves in Korea as functional food materials.
Lim, Hyun Hwa;Ji, Seokgeun;Kwak, Han Sub;Eom, Taekil;Kim, Misook;Lee, Youngseung;Do, Jae Wook;Yu, Sungryul;Choi, Geun Pyo;Jeong, Jin Il;Jeong, Yoonhwa
Journal of the Korean Society of Food Science and Nutrition
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v.44
no.4
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pp.579-585
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2015
The objective of this study was to investigate the quality characteristics of coffee soaked in Morus bombycis extract. Green coffee beans were soaked in M. bombycis extract for 2, 4, and 6 hours (sample codes: 2H, 4H, and 6H) at $4^{\circ}C$. Soaked green beans were dried and roasted for coffee extraction. Two controls, roasted with the same amount of heat (C1) and showed the same weight after roasting (C2), were used. Physicochemical characteristics (pH, total acidity, color, browning index, and total soluble solids), DPPH free radical scavenging activity (DPPH), ferric-reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), total polyphenol content (TPC), and total flavonoid content (TFC) were investigated. Lower pH and higher total acidity were observed in 2H, 4H, and 6H (P<0.05), supporting evidence of sour taste. There were significant differences in DPPH between the controls (45.51~47.02%) and samples (50.67~55.25%, P<0.05), although 2H and 6H did not show significantly higher DPPH than the controls. 2H, 4H, and 6H showed significantly higher FRAP values ($0.320{\sim}0.331\;FeSO_4{\cdot}7H_2O\;mM\;FeSO_4/g$) than controls ($0.265{\sim}0.271\;mM\;FeSO_4/g$). ORAC values of samples [1,062.86~1,153.68 mM trolox equivalent (TE)/g] were significantly higher than those of controls (689.40~942.12 mM TE/g). 2H, 4H, and 6H showed significantly higher TPC [24.27~26.07 mg gallic acid equivalent (GAE)/g] and TFC [3.75~4.28 mg quercetin equivalent (QE)/g] than controls (19.79~22.77 mg GAE/g and 1.07~1.95 mg QE/g, respectively) (P<0.05). M. bombycis extracts soaked into green coffee beans showed polyphenol compounds from green coffee beans. Consumer acceptance of 4H (5.12) was the highest, followed by C2 (4.92). C1 (4.14) showed the lowest consumer acceptance. Consumers were segmented into two groups, those who preferred M. bombycis extract-soaked coffee (approximately 61%) and controls (approximately 39%).
The transitivity of Chemical constituents by Pleurotus ostreatus cultivated in different raw sawdusts, which are Juglans mandchurica, Cudrania tricuspidata and Lindera glauca, was investigated. The HPLC chromatography patterns on the chemical constituents of P. ostreatus showed the similar chromatography patterns in all different raw sawdusts and control sawdust. The unknown chemical constituents of P. ostreatus cultivated in the 10%, 20% mixed medium added 10 %, 20% different raw sawdusts, respectively, were increased. But the significance results in the mixed medium added 50% different raw sawdusts were not showed. The chromatography patterns of mycelia grown in media added the 80% MeOH extracts of three tree species showed the similar patterns in comparison with control mycelia. In the results, the secondary metabolites of functional media were not degrade and changed to other derivatives compounds by P. ostreatus.
Journal of the Korean Society of Food Science and Nutrition
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v.44
no.8
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pp.1137-1143
/
2015
This study investigated the free radical-scavenging and antitumor activities of hot water, water, acetone, ethanol, ethyl acetate, chloroform, and hexane extracts of fruits and leaves from Prunus mume. The various extracts were evaluated for their total polyphenol, flavonoid, and tannin contents, scavenging activities by DPPH and ABTS analyses, reducing power, protective effects against oxidative stress in L-132 cells, and antitumor activities against A549, HeLa, and U87 cancer cells. Ethanol extracts of fruits and leaves showed the highest total polyphenol content (336.41 and 523 mg GAE/100 g, respectively). DPPH and ABTS radical-scavenging activities increased according to concentration of fruit. DPPH radical-scavenging activity of ethanol extracts from leaves was 65.48% at $200{\mu}g/mL$. All extract fractions of leaves showed high ABTS radical-scavenging activities. The reducing power activities increased according to increasing concentration of fruits and leaves. All extracts of leaves performed better than extracts of fruits in terms of protective effects against oxidative stress in L-132 cells. Ethyl acetate, chloroform, hexane, ethanol extracts of fruits and leaves showed anticancer activities against A549, HeLa, and U87 cancer cells. However, ethanol extracts of fruits and leaves showed no toxicity in normal cells (BNLCL2). This study suggests that antioxidant activities of fruits and leaves from P. mume depend on polyphenol contents. Thus, fruits and leaves from P. mume can be useful as natural antioxidant compounds.
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.12
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pp.1662-1667
/
2011
Anthocyanins belong to a group of flavonoid compounds and are well known for their various health beneficial effects, which include antioxidative activities. Among them, the major anthocyanins isolated from seed coat of black soybean (Glycine max L.) were previously characterized as glycosides containing glucopyranose. Asthma is an allergic disease that is strongly associated with various immune cells, including basophils and mast cells. Eosinophils, basophils, and mast cells play important roles in allergic asthma through the release of inflammatory mediators such as asthma-specific T-helper 2 (Th2) cytokines and subsequent amplification of asthma symptoms via degranulation. Rat basophilic leukemia RBL-2H3 cells are the most common in vitro models for evaluating allergic reactions. In this study, we examined the effects of anthocyanin from seed coat of black soybean on antigen-stimulated degranulation and Th2 cytokine production in RBL-2H3 cells. Cell degranulation was evaluated by measuring the release of ${\beta}$-hexosaminidase. ${\beta}$-Hexosaminidase release and Th2 cytokine production in RBL-2H3 cells was much higher upon stimulation with IgE-antigen complex than those in untreated control cells. Anthocyanins significantly suppressed IgE-antigen complex-induced degranulation of RBL-2H3 cells and inhibited IgE-antigen complex-mediated interleukin (IL)-4, IL-13, and tumor necrosis factor ${\alpha}$ (TNF-${\alpha}$) production in RBL-2H3 cells. These findings suggest that anthocyanins from seed coat of black soybean effectively inhibit allergic reactions and may have beneficial effects against allergic asthma.
Yong, Ye Seul;Lee, Songmi;Byun, Na-Young;Sun, Sangouk;Kim, Min-Jung;Jang, Seo Woo;Jang, Won Suk;Lee, Sun Yi;Yim, Soon-Ho
Korean Journal of Food Science and Technology
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v.51
no.6
/
pp.517-523
/
2019
In this study, we investigated antioxidant capacity of 20 strawberry extract using the DPPH and ABTS assay and HPLC-DAD validation method. The total polyphenolic and flavonoids contents of 20 strawberry extracts were 22.77-107.61 mg TAE/100 g FW and 17.58-44.12 mg QE/100 g FW. The Aiberry and Elie star showed the highest total polyphenol and flavonoid contents, respectively. The DPPH radical scavenging activity of what was 1540.6-1124.0 μmol TEAC/100 g FW and Derunoka showed the highest activity. The ABTS radical scavenging activity was 6352.3-4592.3 μmol TEAC/100 g FW and FA23 showed the highest activity. The HPLC-DAD method for the quantitation of ellagic acid results showed high linearity in various concentration ranges, and the limit of detection was 2.35 μg/mL. The limit of quantification was 7.12 μg/mL. Relative standard deviation values from intra-and inter-day precision were less than 5.31%. Recovery rate at 10, 50, and 100 μg/mL, respectively, were 100.0-101.0% with relative standard deviation (RSD) values less than 5.30%. These results provide viable information for the validation of antioxidant capacity in strawberry fruits.
Shin, Ji Hyeon;Kang, Jea Ran;Kang, Min Jung;Shin, Jung Hye
Journal of Life Science
/
v.28
no.3
/
pp.320-330
/
2018
This study was performed to investigate the antioxidative activity of solvent (water, 50% ethanol, and 100% ethanol) extracts from five kinds of medicinal herbs Cutellaria baicalensis Georgi; SB, Paeonia lactiflora Pall.; PA, Salvia miltiorrhiza Bunge; SM, Phellinus linteus; PH, Morus alba L.; MA). The total content of phenolic compounds was highest in the 50% ethanol extract from PH (280.05 mg/g), the 100% ethanol extract from PH (308.88 mg/g), and the water extract from SM (80.27 mg/g). The total content of flavonoids was highest in the 50% ethanol extract from SB (62.71 mg/ml), the 100% ethanol extract from SB (64.59 mg/ml), and the water extract from SM (35.85 mg/ml). ACE inhibitory activity only occurred in the water extracts, and it was highest in the water extract from SB (45.33%). Cholesterol adsorption activity was higher in the SB and PA extracts than in the other extracts. In water extracts, SM showed the highest antioxidative activity. Among the 50% and 100% ethanol extracts, DPPH radical scavenging activity and FRAP were highest in the PH extract, and ABTS radical scavenging activity was significantly higher in the PA extracts. Seven types of compositions were prepared with different mixing ratios of 0.2 to 2.0 from relatively high-activity medicinal herbs, such as PH, SM and PA. The total phenolic and flavonoid compound contents of the compositions were 50.53-61.96 and 16.91-33.81 mg/ml, respectively. Cholesterol adsorption activity was 46.27-70.03%.
Hwang, In Sik;Koh, Eun Kyoung;Kim, Ji Eun;Lee, Young Ju;Kwak, Moon Hwa;Go, Jun;Sung, Ji Eun;Song, Sung Hwa;Hwang, Dae Youn
Journal of Life Science
/
v.24
no.5
/
pp.467-475
/
2014
Sea buckthorn (Hippophae rhamnoides L.) is a well-known and rich source of biologically active compounds, such as flavonoids, carotenoids, steroids, vitamins, tannins, and oleic acid. The effects of sea buckthorn fruit extract (SBFE) on ultraviolet (UV)-induced cell death was investigated in SK-MEL-2 cells cotreated with UV and a low concentration (LoC), medium concentration (MeC), or high concentration (HiC) of SBFE. Cell viability gradually decreased in accordance with an increase in the UV dose. The cell viability of the UV+SBFE cotreated cells increased significantly compared to that of UV+vehicle-treated cells during the application of an appropriate UV radiation dose (400 mJ). In addition, the number of 4',6-diamidino-2-phenylindole (DAPI), propidium iodine (PI)-, and annexin V-stained apoptotic cells was higher in the UV+vehicle-treated cells than in the UV untreated cells. The decrease of apoptotic cell numbers varied in each treated group, but it was most significant in the SBFE-treated group. The number of PI-stained cells dramatically decreased in accordance with the concentration of SBFE, and the maximum decrease was detected in the UV+HiC-treated group. In addition, Bax expression increased and Bcl-2 expression decreased in the SBFE-treated group compared with the UV-only treated group. The level of caspase-3 remained constant in all the groups. These results suggest that SBFE may contribute to a recovery from UV-induced cell death through the regulation of apoptotic protein expression and that it may have potential therapeutic utility in ameliorating UV-induced skin ageing.
Shin, So Yeon;Song, Ka-Young;O, Hyeonbin;Joung, Ki Youeng;Kim, Young-Soon
The Korean Journal of Food And Nutrition
/
v.30
no.2
/
pp.226-235
/
2017
Roselle (Hibiscus sabdariffa L.) is a shrub which grows well in a tropical climate. There are large amounts of anthocyanins, organic acids and other compounds in roselle. Mostly, roselle is cultivated to use its red calyx. Its calyx is used as a natural food colorant and commonly consumed as a tea. This quality study was conducted to investigate the characteristics and antioxidant activities of Sulgidduck with roselle calyx powder. Four samples and a control were made with different ratios of added roselle calyx powder (0.5%, 1%, 1.5%, 2%). The moisture content of the 0.5%-sample was the highest as 40.60%, and that of the 2%-sample was the lowest as 37.37%. The pH of samples significantly decreased from 6.26 to 3.65 as the amount of roselle calyx powder increased (p<0.05). The L-value of samples also significantly decreased (p<0.05). In contrast, a-value and ${\Delta}E$ of samples significantly increased with elevated amounts of roselle calyx powder (p<0.05). The b-value of roselle calyx added Sulgidduck samples significantly increased compared to the control (p<0.05). Hardness and chewiness of Sulgidduck samples with added roselle calyx also significantly increased compared to the control (p<0.05). Cohesiveness of Sulgidduck samples with roselle calyx significantly decreased compared to control (p<0.05), with the exception of the 1% sample. There were no significant differences in springiness among samples. Total phenolic contents significantly increased when roselle calyx powder was added above a level of 1.5% (p<0.05). The flavonoid content of the control was the lowest as 0.73. ABTS radical scavenging activity significantly increased with increasing amounts roselle calyx powder (p<0.05). The 2%-sample got the lowest sensory preference scores in sweetness and overall acceptability. In contrast, the control and 1%-sample got the highest sensory preference scores. Based on these study findings, addition of 1% roselle calyx powder optimized the preparation of Sulgidduck and roselle calyx is therefore a useful natural colorant and antioxidant.
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