• Title/Summary/Keyword: Antioxidative activity

Search Result 2,517, Processing Time 0.03 seconds

Antioxidative and Nitrite Scavenging Activities of Mugwort and Pine Needle Extracts (쑥과 솔잎의 항산화작용 및 아질산염 소거작용)

  • 박찬성;권충정;최미애;박금순;최경호
    • Food Science and Preservation
    • /
    • v.9 no.2
    • /
    • pp.248-252
    • /
    • 2002
  • Mugwort and pine needle were extracted with water and 70% ethanol. Electron donating ability(EDA) of extracts were ranged from 50% to 57% in mugwort water extract(MGW) and ranged from 51% to 64% in mugwort ethanol extract(MGE) at 300-1,000ppm. EDA of extracts were ranged from 52% to 60% in pine needle water extract(PNW) and ranged from 68% 71% in pine needle ethanol extract(PNE) at 100-500ppm. EDA of PNW was 70% and that of PNE was 77% at 1,00(ppm. Nitrite scavenging ability(NSA) of extracts measured at various pH(1.2, 3.0, 4.2, 6.0) was the highest in all extracts at pH 1.2 and decreased with increasing pH, suggesting it is pH dependent. NSA of mugwort extracts at 1,000ppm, water extract was 37% and ethanol extract was 27% at pH 1.2. NSA of pine needle extracts at 1,000ppm, water extract was 65%and ethanol extract was 53% at pH 1.2. EDA and NSA of pine needle extracts were higher than mugwort in both of water and ethanol extract. EDA of ethanol extracts were higher than water extracts while NSA of water extracts were higher than ethanol extracts in both of mugwort and pine needle.

Chemical compositions and antioxidant activities of Cheonnyuncho (Opuntia humifusa) stems and fruit (천년초의 성분특성과 항산화 활성)

  • Shin, Dong-Sun;Han, Gwi-Jung
    • Food Science and Preservation
    • /
    • v.23 no.1
    • /
    • pp.89-96
    • /
    • 2016
  • The purpose of this study was to investigate the chemical composition of the freeze-dried stems and fruit of the cactus Cheonnyuncho. The analysis showed that powdered stems have the highest fat content (1.91%) and the powdered fruits have he highest protein content (2.62%). The K content of the fruits higher than that of the stems, while the Ca, Mg, Na and P contents of the stems were higher than those of the fruits. Both the stems and fruits powders contained high levels of the amino acids glutamic acid and aspartic acid. The free sugars such as sucrose, fructose, and glucose were detected in both the stems and fruits. The 75% ethanol (EtOH) extract showed a relatively high antioxidative activity compared to those of the water and 75% methanol (MeOH) extracts. Furthermore, the 75% EtOH extract of the stem powder exhibited a total polyphenol content of 3.60 g/100 g, and a total flavonoid content of 2.00 g/100 g. The antioxidant activities of the stem and fruit powder extracts, measured in DPPH radical scavenging experiments, were higher than that of the control group.

The Effect of Laser Acupuncture of Five-Transport-Points of the Heart Meridian in L-NAME-Induced Hypertensive Rats (수소음심경 오수혈 혈위별 레이저 침자가 고혈압 흰쥐의 혈압에 미치는 영향)

  • Shin, Wook;Lee, Yumi;Kim, Wangin;Choi, Donghee;Kim, Mirae;Youn, Daehwan;Na, Changsu
    • Korean Journal of Acupuncture
    • /
    • v.34 no.1
    • /
    • pp.56-69
    • /
    • 2017
  • Objectives : The purpose of this study is to compare the effects of laser acupuncture to the 532 nm on the five transport points with the heart meridian for treatment to hypertensive disease in rats with L-NAME induced hypertensive. Methods : Hypertensive was induced by L-NAME for 3 weeks. The laser acupuncture therapy on the five transport points of heart meridian(Laser Well Point-HT9, Laser Brook Point-HT8. Laser Stream Point-HT7, Laser River Point-HT4 and Laser Sea Point-HT3) was treated twice a week for 5 times. The hypertensive was measured using a cardiac hypertrophy, atherogenic index, TG/HDL-cholesterol ratio, TCHO, HDLC, TG, AST, ALT, antioxidative effectiveness and glutathione peroxidase quality of hypertensive rats induced by L-NAME. Results : Blood pressure were decreased significantly after the laser acupuncture of Well, Brook and Sea Point groups. Cardiac hypertrophy were decreased at the laser acupuncture of Brook and Stream Point groups. Athrogenic index was decreased at the laser acupuncture of Well, Stream, River and Sea Point groups. TG/HDL-cholesterol ratio was decreased at the laser acupuncture of all groups. Total cholesterol was decreased significantly at the laser acupuncture of Well Point group. High density lipoprotein cholesterol and total cholesterol were decreased significantly at the laser acupuncture of Well, Stream and River Point groups. Triglyceride was decreased significantly at the laser acupuncture of Stream Point group. Cu/Zn-Superoxide Dismutase (Cu/Zn-SOD) and glutathione peroxidase(GPX) were increased significantly at the laser acupuncture of Well Point group. Conclusions : The laser acupuncture treatment in five transport points of the Heart Meridian was effective for lowering blood pressure, cardiac hypertrophy, Atherogenic index and HTR, and for enhancing antioxidant activity.

Effect of Cordycepin-increased Cordyceps militaris Powder on Tissues Lipid Peroxidation and Antioxidative Activity in Carbon Tetrachloride-induced Hepatic Damage in Rats (Cordycepin이 사염화탄소 유발 간손상 흰쥐의 조직 과산화 지질 농도 및 항산화 활성에 미치는 영향)

  • Ahn, Hee-Young;Park, Kyu-Rim;Kim, Yu-Ra;Cha, Jae-Young;Cho, Young-Su
    • Journal of Life Science
    • /
    • v.23 no.7
    • /
    • pp.904-912
    • /
    • 2013
  • This study aimed to evaluate the protective effect of cordycepin-increased Cordyceps militaris strain on carbon tetrachloride ($CCl_4$)-induced hepatotoxicity and oxidative stress in rats. Male Sprague-Dawley rats were randomly divided into five groups (n=6) based on six dietary categories: normal (N), $CCl_4$ control (C), $CCl_4$ plus Paecilomyces japonica (CPJ) (3%, w/w), $CCl_4$ plus C. militaris (CCM) (3%, w/w), and $CCl_4$ plus cordycepin-increased C. militaris ($CCM{\alpha}$) (3%, w/w). The activities of the liver marker enzymes ALT, AST, and LDH and the levels of lipid peroxidation were increased in the $CCl_4$-treated groups, but these parameters were significantly decreased in the $CCM{\alpha}$ group. The TBARS content in the liver homogenate, microsome, and mitochondrial fractions of the C group was significantly elevated compared with the N group. However, in the $CCl_4$-treated groups, $CCM{\alpha}$ group was significantly lowered in the TBARS levels of hepatic homogenate and microsomal fractions. The C group showed a significant decrease in the levels of plasma and hepatic glutathione, whereas they were significantly increased in the $CCM{\alpha}$ group. Accordingly, cordycepin-increased C. militaris may be an ideal animal model for studying hepatoprotective effects.

Effect of Allium cepa (red) and Angelica gigas Nakai on Hair-growth Promotion in C57BL/6 Mice (C57BL/6 마우스에서 모발성장 촉진에 대한 Allium cepa (red)와 Angelica gigas Nakai의 효과)

  • Lee, Jin Young;Dong, Jae Kyung;Kang, Jae Seon
    • Journal of Life Science
    • /
    • v.30 no.11
    • /
    • pp.990-998
    • /
    • 2020
  • This study was conducted to evaluate the hair-growth promotion effect in C57BL/6 mice of a new substance mixed with Allium cepa (red)-bioconversion extract and Angelica gigas Nakai. The ethanol extract of Allium cepa (red) was bioconverted through the use of the Bacillus subtilis KJ-3 (BS3) strain, which was named Red-BCQ. The quercetin content of Red-BCQ increased by about 7.4-fold after bioconversion. Angelica gigas Nakai extract (Agnex) contains a large amount of coumarins such as decursin (D) and decursinol angelate (DA). A 1 mg portion of Agnex contained 0.4146 mg of D and 0.3659 mg of DA. Minoxidil has been known to promote hair growth. In this study, the hair-growth promotion effects of Red-BCQ, Agnex, and a mixture of both Red-BCQ and Agnex were compared with 5% minoxidil. Twenty-five mice were divided into five experimental groups including saline (CON), 5% minoxidil (PCON), Red-BCQ (RA), Agnex (AG), and a Red-BCQ-Agnex mixture (RAG)-treated group. Samples were administered orally once a day at a fixed time for 4 weeks. Hair growth was monitored by photograph at 7, 14, 21, and 28 days. We also observed 5α-reductase, alkaline phosphatase (ALP), γ-glutamyl transpeptidase (γ-GT), insulin-like growth factor (IGF)-1, transforming growth factor (TGF)-β1, antioxidant enzyme, and the hair follicles of the skin tissue. In all the results, the RAG-administered group showed greater antioxidative and hair-growth promotion effects than the other groups. These data suggest that RAG has potent stimulating activity on hair growth in C57BL/6 mice.

Biological Activities of Flavonoid Glycosides Isolated from Angelica keiskei (신선초에서 분리된 flavonoid glycosides의 생리활성)

  • Shim, Jae-Seok;Kim, Seung-Deok;Kim, Tae-Seok;Kim, Kyung-Nam
    • Korean Journal of Food Science and Technology
    • /
    • v.37 no.1
    • /
    • pp.78-83
    • /
    • 2005
  • Recently, much attention has been focused on plant antioxidants, because they are expected to protect against oxidative damage, possibly preserving biological functions of cells. Antioxidant compounds were isolated from Angelica keiskei through extraction with 80% EtOH, and fractionations were carried out sequentially with n-hexane, chloroform, ethyl acetate, n-butanol, and water. Two active compounds were isolated from ethyl acetate fraction by silica gel column chromatography, and were identified as isoquercitrin ($quercetin-3-O-{\beta}-D-glucose$) and hyperoside ($quercetin-3-O-{\beta}-D-glucose$). Isoquercitrin and hyperoside showed strong antioxidative potency, as revealed by evaluation of their ABTS, DPPH, OH, and $H_{2}O_{2}$ radical-scavenging activities, and ex vivo DNA damage-protecting effects.

Utilization of the Natural Antioxidants for the Anti-peroxidation of Almond Cracker (아몬드 크래커의 과산화 억제에 있어서 천연 항산화제의 활용)

  • 박기범;한규홍;김병용
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.32 no.1
    • /
    • pp.131-136
    • /
    • 2003
  • This research was aimed to evaluate the inhibition of oxidative changes of almond crackers by natural antioxidants (tocopherol, rosemary, and tea polyphenol). Almond crackers stored at $25^{\circ}C$ and 35$^{\circ}C$ for 70 days were evaluated with peroxide value, sensory and kinetic parameters. Results revealed that the antioxidative activity of rosemary was highy effective in inhibiting lipid oxidation at $25^{\circ}C$ and tea Polyphenol highly effective at 35$^{\circ}C$. Sensory evaluation indicated that the properties of odor and taste of almond crackers tended to positive effect with the addition of rosemary and tea polyphenol. Kinetic study in lipid oxidation showed the first order reaction at $25^{\circ}C$ and the zero order reaction at 35$^{\circ}C$. It was found that the kinetic parameter of oxidation reaction predicted for the shelf-life of almond cracker.

Quality Characteristics and Antioxidant Activities of Black Garlic Jam Prepared with Fructooligosaccharide (프락토올리고당 첨가 흑마늘 잼의 품질 특성 및 항산화성)

  • Kim, Min-Hee;Kim, Sung-Min;Kim, Mee-Ree
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.20 no.6
    • /
    • pp.916-922
    • /
    • 2010
  • The quality characteristics and antioxidant activities were evaluated for jams containing fructooligosaccharide (FTO) and FTOS (sucrose 50%+FTO 50%) substituted for sucrose. The endpoint of jam preparation was determined to be sweetness of $64^{\circ}Brix$. Moisture contents differed among the treatments, whereas acidity did not. Reducing sugar content and viscosity were highest in the FTO (0.144%, 126,800 cP), and the lowest in control (0.074%, 101,600 cP). Lightness (L value), redness (a value), and yellowness (b value) values of the Hunter color system were highest in the FTO sample. Hardness and springiness of textural properties were the highest in the FTO sample as well. Antioxidant activities were the highest in the FTO sample with the lowest $IC_50$ values (42.3 mg/g for DPPH and 22.4 mg/g for hydroxyl radical scavenging activities). Total phenolic content was the highest in the FTO sample among all treatments. The overall acceptance score of black garlic jam containing FTO was the highest. Based on these results, it is suggested that FTO was appropriate for achieving good qualities such as antioxidative activity in black garlic jam.

Comparison of Nutritional Components and Physicochemical Properties of Small Colored Potatoes and Small Regular Potatoes (칼라꼬마감자와 일반꼬마감자의 영양성분 및 이화학적 특성)

  • Park, Sung-Jin;Kwon, Min-Soo;Shin, Kyung-Yi;Rha, Young-Ah
    • Culinary science and hospitality research
    • /
    • v.20 no.3
    • /
    • pp.80-89
    • /
    • 2014
  • This study examined the nutritional components and physicochemical properties of small colored potatoes and small regular potatoes as a natural health food source. To accomplish this, the general and antioxidative contents of small colored potatoes and small regular potatoes were measured. Total contents of carbohydrates, crude protein, crude lipid, and ash were 88.1%, 4.9%, 0.9%, and 6.4%, respectively. Small colored potatoes contained 76.5 kcal, while their total dietary fiber was 4.0%. Total proteins consisted of 17 different kinds of amino acids. Regarding their mineral contents, K was the most abundant mineral, followed by P, Mg, and Ca. Total phenol contents of the 70% ethanolic extracts of small colored potatoes were $48.2{\pm}1.2$ mg GAE/g. Total flavonoid contents of the 70% ethanolic extracts were $13.1{\pm}0.3$ mg RE/g. Overall, small colored potatoes had higher amounts of nutrients and physicochemical properties than small regular potatoes. The general nutrients and other antioxidant bioactive materials in small colored potatoes were also potential materials for good health food. It is expected that follow up studies of small colored potatoes through developing processed food and evaluation of their functional properties would provide useful information as a source of functional foods.

Antioxidative Effectiveness of Water Extract and Ether Extract in Wormwood(Artemisia montana Pampan) (쑥(산쑥)의 물 추출물과 에테르 추출물의 항산화 효과)

  • Lee, Gee-Dong;Kim, Jeong-Sook;Bae, Jae-Oh;Yoon, Hyung-Sik
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.21 no.1
    • /
    • pp.17-22
    • /
    • 1992
  • Water extract, and free-, ester- and insoluble phenolic acids were extracted from wormwoods. The extracts were then dissolved in equal amounts of an edible soybean oil, and the resulting substrates, portion of the soybean oil (control), 0.02% BHA and 0.02% BHT were stored in incubator at $45^{\circ}C{\pm}1.0^{\circ}C$ for 32days. Peroxide values (POV) and thiobarbituric acid (TBA) values of control and the substrates were determined during th9 storage period. The POV of control, BHA, BHT and six substrates which were contained water extracts 0.5%, 1% and 1.5%, and free-, ester- and insoluble phenolic acids after 24days of storage were 77, 43, 17, 38, 26, 34, 45, 28 and 16m mole/kg oil respectively, The TBA values after 32days of storage were 0.278, 0.170, 0.070, 0.200, 0.178, 0.235, 0.167, 0.136, 0.062, respectively, It was found that the antioxidant activity in water extracts was highest in water 1 (the substrates containing water extracts 1%). It was also found that antioxidant activities in the phenolic acids were decreased in the following order ; insoluble phenolic acids>ester form>free phenolic acids. The phenolic acids separated and tentatively identified by Gas chromatography were catechol, vanillin, umbelliferone, p-coumaric acid, ferulic acid caffeic acid, protocatechuic acid, p-hydroxy benzoic acid and syringic acid.

  • PDF