Kim, Hae-Seop;Park, Jeong-Wook;Lee, Young-Jae;Shin, Gung-Won;Park, In-Bae;Jo, Yeong-Cheol
Food Science and Preservation
/
v.16
no.3
/
pp.427-434
/
2009
We collected glasswort (Salicornia herbacea L.) from the Jollanam-do area (Hwangsan-myeon in Haenam, Jeungdo-myeon in Sinan, and Yeomsan-myeon in Yeonggwang) from June to October 2007, and analyzed levels of total amino acids, free amino acids, and total polyphenolic compounds and electron donating ability and SOD-like activity. The total amino acid content was $3,338.75{\sim}4,491.63\;mg$/100 g in the sample from Haenam, $3,086.48{\sim}3,782.89\;mg$/100 g in the sample from Sinan, and $3,134.3{\sim}4,364.17\;mg$/100 g in the sample from Yeonggwang. Proline was the main free amino acid from June through to September, and the level increased during June, the early period of maturation, and then decreased with further ripening. The total content of free amino acids was $472.75{\sim}1,080.98\;mg$/100 g in the sample from Haenam, $440.46{\sim}621.77\;mg$/100 g in the sample from Sinan, and $387.64{\sim}669.28\;mg$/100 g in the sample from Yeonggwan. Total polyphenolic compound level was $11.1{\sim}15.61\;mg/g$ in the sample from Haenam, $12.71{\sim}21.03\;mg/g$ in the sample from Sinan, and $13.13{\sim}22.28\;mg/g$ in the sample from Yeonggwang. Electron donating ability was 53.8.70.9% in the sample from Haenam, $62.7{\sim}88.8%$ in the sample from Sinan, and $63.0{\sim}72.7%$ in the sample from Yeonggwang. SOD-like activity was $28.7{\sim}41.0%$ in the sample from Haenam, 28.5{\sim}36.5% in the sample from Sinan, and 23.5.39.6% in the sample from Yeonggwang.
Journal of the Korean Society of Food Science and Nutrition
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v.42
no.2
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pp.262-267
/
2013
The purpose of this research is to minimize the loss of nutrients in carrots (Daucus carota var. sativa). A protopectinase was used to enzymatically macerated and separate cells without damage. The enzyme modification group's collection rate was 81% (residue rate 19%), while the grinding process group's collection rate was 56% (residue rate 44%)-an over 20% of collection rate difference. Thus we predicted a big difference in transference number after the process and wastage. In comparing ingredient changes in the enzyme modification group versus the grinding process group, the content of ${\beta}$-carotene (the carrot's main ingredient) showed a change in protection factor (PF) ($2.2{\pm}0.2$ PF, $1.4{\pm}0.4$ PF, respectively), total polyphenol content ($89{\pm}3.42{\mu}g/g$, $64{\pm}4.16{\mu}g/g$, respectively), and total flavonoid content ($68{\pm}2.73{\mu}g/g$, $41{\pm}3.26{\mu}g/g$, respectively). Thus we confirmed that nutrient destruction, due to cell membrane preservation, occurred less often in the enzyme modification process than the mechanical grinding process group. We also measured DPPH radical scavenging activity, hydroxyl radical scavenging activity, and nitrite scavenging activity. DPPH radical scavenging activity was $87{\pm}0.29%$ and $74{\pm}1.56%$ in the enzymatic modification group compared to the mechanical grinding process group, respectively. Hydroxyl radical scavenging activity was $44{\pm}0.49%$ and $32{\pm}0.48%$ in the enzymatic modification group compared to the mechanical grinding process group, respectively. Nitrite scavenging activity was $59{\pm}0.53%$ and $46{\pm}0.62%$ in the enzymatic modification group compared to the mechanical grinding process group, respectively. Our results show that cell membrane preservation, via the protopectinase enzyme process, decreases the loss of nutrients and still preserves inherent antioxidants.
Journal of the Korean Society of Food Science and Nutrition
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v.16
no.2
/
pp.147-155
/
1987
In order to examine the effect of dietary fish oil on lipid peroxide formation and antiperoxidative efficiency in liver and brain, a group of male and female rats weighing about 70 grams were fed for three months, diet containing mackerel oil(MO) at the level of 10% (w/w). Results were compared, according to sex and source of dietary fat, i.e., in addition to MO, perilla oil(PO), soybean oil(SO), rapeseed oil(RO) or beef tallow(BT). Liver lipid peroxide level was significantly higher and levels of ${\alpha}-tocopherol$ and reduced glutathione(GSH) were lower in MO group than in other groups. This phenomenon was less clear in male than in female. Liver GSH level was lower in male, compared to female, but oxidized glutathione (GSSG) level did not vary, depending on either sex or dietary fat source. Brain lipid peroxide and ${\alpha}-tocopherol$ levels were not different among five experimental groups. Activities of liver and brain glutathione peroxidase and superoxide dismutase were not changed by dietary fat source, but glutathione peroxidase activity was higher in female than in male. The present study shows (a) that there is sex-related difference in antiperoxidatiye activity and (b) that fish oil containing $C_{20-22}({\omega}3)$ fatty acids, increases body lipid peroxide level and consumes more of cellular antioxidant, although it has lower total PUFA content than perilla or soybean oils.
Journal of the Korean Society of Food Science and Nutrition
/
v.37
no.9
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pp.1126-1135
/
2008
This study was carried out to investigate the anti-oxidative and anti-inflammatory actions of genistein in BALB/c mice injected with lopopolysaccharide (LPS), called endotoxin. Mice (10 weeks of age) weighing approximately 20 g were divided into 4 groups. Endotoxin shock was induced by intraperitoneal injection of LPS (100 mg/kg BW). LPS and genistein+LPS groups were injected with LPS 30 min after phosphate buffered saline (PBS) solution and genistein (200 mg/kg BW) injections, respectively. Genistein group was injected with genistein, followed by PBS, while PBS group received two injections of PBS. Superoxide anion generation of peritoneal macrophage cells was significantly (p<0.05) lower in the genistein+LPS group than in the LPS injection group at 8 h after intraperitoneal injection, while SOD activity was significantly higher in genistien+LPS group than LPS group. Tumor necrosis factor-$\alpha$ levels of plasma were significant lower (p<0.05) in the genistein+LPS injection group than LPS group at 8 h after intraperitoneal injection. Plasma TBARS was lower in genistein+LPS group than LPS group, while hepatic TBARS were not different among groups. Hepatic glutathione concentrations and antioxidant enzyme activities were ignificantly higher in the genistein+LPS group than in the LPS group at 1 h and 8 h after intraperitoneal injection. Nuclear factor-kappa B (NF-${\kappa}B$) transactivation was significantly (p<0.05) inhibited in LPS group. These results demonstrate genistein may ameliorate inflammatory diseases through inhibition of NF-${\kappa}B$ transactivation and oxidative stress, which may be mediated partially by anti-oxidative effect of genistein.
Journal of the Korean Society of Food Science and Nutrition
/
v.46
no.2
/
pp.185-195
/
2017
Two byproducts, brewer's spent grain (BSG; germinated rice and malt) and brewer's spent material (BSM; Achyranthes japonica Nakai), were collected during the manufacture of pilsner beer using A. japonica Nakai and germinated rice. Water extracts of BSG and BSM were prepared at different temperatures ($25^{\circ}C$, $60^{\circ}C$, and $100^{\circ}C$) for 5 h, and their nutritional and functional properties were investigated. ${\gamma}-Aminobutyric$ acid (GABA), saponin, and niacin contents were higher in extracts prepared at $60^{\circ}C$ for more than 3 h than the other extracts, whereas total polyphenol content, DPPH radical scavenging activity, and reducing power were higher in samples extracted at $100^{\circ}C$ for 1 h compared to the other ones. Overall, water extraction at $60^{\circ}C$ for 3 h was desirable to effectively collect both nutritional and functional components from BSG and BSM. Under these conditions, BSM extracts showed 4~18 times high niacin and folate contents, 1.4 times high total phenolic content, and 11~60 times high antioxidant activities compared to BSG extracts. This study shows that pilsner beer byproducts would be good sources of health beneficial components, especially GABA, saponin, water soluble vitamins, and polyphenolics.
The solvent extracts of Nelumbo nucifera G. were investigated for antioxidant activities, whitening and anti-wrinkle effects to apply as a functional ingredient in cosmetic products. For their industrial application, the cosmetic products were also prepared with advanced formulation techniques such as W/O/W multiple emulsion. Total phenolic and flavonoids contents increased in Nelumbo nucifera G.-Leaf (NN-L). The electron donating ability of Nelumbo nucifera G.-Flower (NN-F) or Nelumbo nucifera G.-Leaf (NN-L) extracts were above 85% at a concentration of 500 ppm. The superoxide dismutase (SOD)-like activity of Nelumbo nucifera G. (NN-L) extracts was about 60% at a concentration of 1,000 ppm. The xanthine oxidase inhibitory effect of NN-L extract was higher than that of NN-F and NN-S extracts. The tyrosinase inhibitory effect, which is related to skin-whitening, was 36% in NN-F at 1,000 ppm. For anti-wrinkle effect, the elastase inhibition activity of NN-L was about 30% at 1,000 ppm. The results of stability test showed that W/O/W multiple emulsion (ME) containing Nelumbo nucifera G. extracts. The electron donating ability of the ME containing NN-F and NN-L were about 60% at a concentration of 100 ppm. The superoxide dismutase (SOD)-like activity of the ME containing NN-L was 30% at 1,000 ppm. The tyrosinase inhibitory effect, which is related to skin-whitening, was 34% in the ME containing NN-F at 1,000 ppm. In anti-wrinkle effect, the elastase inhibition activity of the ME containing NN-L was about 55% at 1,000 ppm.
Kim, Hyun Young;Seo, Woo Duck;Seo, Kyung Hye;Lee, Mi-Ja;Choi, Sik-Won;Lee, Kwang-Sik;Kim, Sun Lim;Kang, Hyeon Jung
KOREAN JOURNAL OF CROP SCIENCE
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v.61
no.3
/
pp.184-190
/
2016
We investigated the antioxidative and protective effects of corn silk (Zea mays L.) ethanol extracts on human HaCaT cells and erythrocytes. The NICS-2 fraction, extracted from corn silk, exhibited favorable 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging activities with $IC_{50}$valuesof$13.3{\pm}0.3{\mu}g/mL$ and $14.2{\pm}0.1{\mu}g/mL$ when compared with those of ${\alpha}$-tocopherol, a positive control, with $IC_{50}=10.4{\pm}02.2$ and $22.2{\pm}3.6{\mu}g/mL$, respectively. In addition, we investigated skin protection effects of NICS extracts of corn silk in HaCaT keratinocytes. To investigate the pharmacological potential of NICS-1 and NICS-2 extracts of corn silk on UV-B-induced damage in HaCaT cells, we measured the activity of interleukin (IL) 1a. Our results showed that all the corn silk extracts inhibited the UV-B-induced activity of IL-1a. In particular, NICS-1 extracts of corn silk significantly suppressed IL-1a activity in a dose-dependent manner without inducing cytotoxicity. These results indicate that the ethanol extracts of corn silk (Zea mays L.) could function as natural cytoprotective agents and antioxidants in biological systems, particularly the skin exposed to UV radiation, by protecting cellular membrane against reactive oxygen species (ROS).
Journal of the Korean Society of Food Science and Nutrition
/
v.46
no.9
/
pp.1035-1044
/
2017
This study was carried out to investigate the effects of freeze-dried garlic powder (FDGP) on the lipid metabolism in rats fed a high fat-cholesterol (HFC) diet for 4 weeks to induce hyperlipidemia. The rats were divided into the following four experimental groups: normal diet group (NC), HFC diet group (HFC), HFC+FDGP 5 mg/100 g body weight (BW) group (FGT-1), and HFC+FDGP 15 mg/100 g BW group (FGT-2). Body weight gains and food efficiency ratios were significantly lower in the FGT groups compared to the HFC group, and the food intake was not significantly different in all experimental groups. Serum total lipid, triglyceride, and total cholesterol levels were significantly lower in the FGT groups compared to the HFC group. Total lipid content of the FGT-2 group was reduced by about 9% and 12% compared to the FGT-1 group and HFC group, respectively. The FGT groups also showed about 10% reductions low density lipoprotein (LDL)-cholesterol, atherogenic index (AI), and cardiac risk factor (CRF) compared to the HFC group. Liver function index (alkaline phosphatase, aspartate aminotransferase, and alanine aminotransferase) and lipid components were significantly lower in the FGT groups compared to the HFC group. Thiobarbituric acid reactive substances content of serum and liver tissue was reduced in the FGT groups compared to the HFC group, and was lower in the FGT-2 group compared to the FGT-1 group in serum. Antioxidant activities in serum and liver tissue were in the order of FGT-2> FGT-1> HFC group, significantly. In conclusion, FDGP effectively reduced the lipid components of serum and liver tissue. Feeding FDGP did not increase high density lipoprotein-cholesterol, but reduced LDL-cholesterol content, AI and CRF, especially. This shows that FDGP, will be effective in preventing and improving cardiovascular diseases such as arteriosclerosis and hyperlipidemia.
Kim, Tae Woo;Kim, Kyoung Kon;Kang, Yun Hwan;Kim, Dae Jung;Choe, Myeon
Journal of Nutrition and Health
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v.47
no.4
/
pp.221-228
/
2014
Purpose: Citron seed oil (CSO) has been reported to have high antioxidant activity. However, the composition and other biologically activities of CSO have not been reported. In this study, we confirmed the fatty acid composition of CSO, which may be beneficial to vascular disease and obesity. Methods: We investigated the oil composition of CSO using gas chromatography coupled with mass spectrometry (GC-MS) analysis, and cytotoxicity was confirmed by Cell Counting Kit-8 (CCK-8) assay. Nitric oxide (NO) production in human umbilical vein endothelial cells (HUVECs) was measured using Griess reagent, and lipid accumulation and leptin secretion in 3T3-L1 cells were measured by Oil-Red O staining and commercial ELISA kit, respectively. Results: GC-MS analysis indicated that CSO contains several components, including linoleic acid, oleic acid, palmitic acid, stearic acid, linolenic acid, palmitoleic acid, and arachidic acid. In physiological activity analysis, CSO did not induce cytotoxic effects in HUVECs and 3T3-L1 cells. Further, CSO significantly induced nitric oxide and leptin secretion as well as inhibited lipid accumulation. Conclusion: CSO increased NO release, inhibited lipid accumulation, and induced leptin secretion, suggesting it may be useful for the management of vessels and weight gain. Although further studies are required to investigate the safety and mechanism of action of CSO, our results show that the composition and physiological activity of CSO are sufficient for its use as functional edible oil.
Journal of the Korean Society of Food Science and Nutrition
/
v.45
no.6
/
pp.812-818
/
2016
Protective effects of fermented Curcuma longa L. (CL) against alcoholic liver damage were investigated in HepG2/2E1 cells. Fermented CL was extracted by cold water (FCC), hot water, 80% ethanol, and methanol. Of the four extracts, the strongest hepatoprotective effect against ethanol-induced oxidative stress was observed in FCC. Pretreatment with FCC also reduced intracellular reactive oxygen species formation compared to ethanol-alone treated cells. FCC also enhanced catalase, glutathione-S-transferase, glutathione reductase, glutathione peroxidase, and superoxide dismutase, and non-enzymatic antioxidative activities such as glutathione compared to alcohol-treated HepG2/2E1 cells. Our findings suggest that FCC might be considered as a useful agent in the prevention of liver damage induced by oxidative stress by increasing the antioxidant defense mechanism.
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