• Title/Summary/Keyword: Antioxidant Property

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Quality and Antioxidant Properties of Cookies Supplemented with Cabbage Powder (양배추 분말을 첨가한 쿠키의 품질 및 산화방지 활성)

  • Lee, Yeong Mi;Lee, Jun Ho
    • Food Engineering Progress
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    • v.21 no.1
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    • pp.93-98
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    • 2017
  • The feasibility of incorporating cabbage powder (CP) as a value-added food ingredient into convenient food products was investigated using cookie as a model system. CP was incorporated into cookies at amounts of 0, 2, 4, 6, and 8% (w/w) based on total weight of wheat flour. pH level and moisture content of cookie dough decreased and increased significantly, respectively, with increasing levels of CP (p<0.05), whereas density was not directly affected by levels of CP incorporation. The spread ratio of cookies and their hardness increased significantly while the loss rate decreased significantly with increasing levels of CP (p<0.05). In terms of color, lightness and yellowness decreased while redness increased significantly (p<0.05) with increasing levels of CP. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radical scavenging activities were significantly elevated by CP addition, and they increased significantly as CP concentration increased in the formulation (p<0.05). Finally, consumer acceptance test indicated that the higher than 4% of CP incorporation had an adverse effect on general consumer preferences. In contrast, cookies with moderate levels of CP (2%) were recommended based on overall scores to take advantage of the antioxidant properties of CP without sacrificing consumer acceptability.

Effects of Pretreatment and Ag Coating Processes Conditions on the Properties of Ag-Coated Cu Flakes (Ag 코팅 Cu 플레이크의 제조에서 전처리 및 Ag 코팅 공정 변화의 효과)

  • Kim, Ji Hwan;Lee, Jong-Hyun
    • Korean Journal of Materials Research
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    • v.24 no.11
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    • pp.617-624
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    • 2014
  • To elucidate the effects of a pretreatment process on the uniformity of Ag electroless plating on Cu flakes, pretreatment time was mainly considered with a mixed solution of 0.15 M ammonium hydroxide and 0.0375 M ammonium sulphate. Optical inspection of Ag-coated Cu flakes determined that the optimal pretreatment time is 120 s. Repetition of the sequence in which Ag plating was done immediately after the pretreatment of 120 s clearly enhanced the plating uniformity. Scanning electron microscopy revealed that holes were formed irregularly on some Cu flakes during the period from the asdropping of an Ag precursor solution to 5 min. The hole formation was judged to be due to continuous removal of Cu on the local surfaces by the repetitive formation and elimination of $Cu_2O$ or $Cu(OH)_2$ layers. However, the increase of the amount of Ag coating suppressed the hole creation and increasingly enhanced the antioxidant property.

FICUS CARICA L.: A PANACEA OF NUTRITIONAL AND MEDICINAL BENEFITS

  • Salma, Salma;Shamsi, Yasmeen;Ansari, Saba;Nikhat, Sadia
    • CELLMED
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    • v.10 no.1
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    • pp.1.1-1.6
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    • 2020
  • Since times immemorial, people have been dependant on plants for the various nutritional and pharamacological properties. Folk and traditional medicine recognizes thousands of plant species having miraculous benefits. Fig (Ficus carica Linn.) has been part of folk-lore since centuries. Ficus carica Linn. (Moraceae) is a huge deciduous tree, with more than 800 species. Different parts of Ficus carica like bark, root, leaves, fruit and latex have their own valuable importance and are frequently used for the treatment of various illnesses. Fruit of Ficus carica is commonly called as fig (anjeer) has various medicinal properties used in Unani, Ayurvedic and Chinese traditional system of medicines. Fig fruit is mostly used in gastro intestinal and respiratory disorders. In Unani medicine, fig is used as a diuretic, mild laxative and expectorant. Phytochemical studies on the leaves and fruits of the plant have shown that they are rich in Phenolics, Flavonoids, Vitamin C, Alkaloids, Saponins, Coumarins, tannins, organic acids, and volatile compounds due to which it is having great antioxidant property. Most interesting therapeutic effects include hypoglycemic, hepatoprotective, anticancer, antimicrobial and hypolipidemic activities.

Effects of Radix Saussurea on hepatoprotection (목향(木香)함유 DHL과 ML이 간세포 보호에 미치는 영향)

  • Park, Jong-Chan;Yun, Young-Gab
    • Herbal Formula Science
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    • v.16 no.2
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    • pp.193-204
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    • 2008
  • Dehydrocostus lactone (DHL) and Mokko lactone (ML) were isolated from Saussureae Radix, and their effects on heme oxygenase-1 (HO-1) expression and hepatoprotection in the liver cell line HepG2 were investigated. DHL induced HO-1 expression and HO activity in a dose-dependent manner, whereas ML lacking one double bond property at 11 and 13 carbons on its own chemical structure had no apparent effects. DHL also induced Nrf2 nuclear translocation and enhanced antioxidant response element (ARE) activation which mediated HO-1 gene transcription. Pretreatment with DHL protected HepG2 cells against oxidative damages caused by H2O2. Interestingly, the hepatoprotective effects of DHL appeared to be associated with HO enzymatic activation, HO-1 expression and Nrf2 activation, because blockage of HO activity by a HO inhibitor and inhibition of HO-1 and Nrf2 cellular synthesis by small interfering RNA abolished heptoprotection afforded by DHL. Taken together, this investigation provides evidence supporting that Saussureae Radix is hepatoprotective against oxidative stress that causes abnormal liver damages.

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Supplementation of French Maritime Pine Bark Extract (Pycnogenol®) Prevents Lung Injury and Lipid Peroxidation in Nude Mice Exposed to Side-Stream Cigarette Smoke (SSCS)

  • Lee, Jeong-Min;Hwang, Kwon-Taek;Lee, Jong-Moon;Kim, Sun-Ho;Watson, Ronald R.;Park, Kun-Young
    • Preventive Nutrition and Food Science
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    • v.9 no.1
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    • pp.65-70
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    • 2004
  • Side-stream cigarette smoke (SSCS) is a major component of environmental tobacco smoke. The purpose of this study was to investigate the development of lung injury and lipid peroxidation in the lung and liver of immunodeficient (Nude) mice exposed to acute SSCS (a total 5 hours of exposure). The effects of French maritime bark extract (Pycnogeno $l^{ⓡ}$) supplementation of the mice were also determined. SSCS increased pulmonary resistance and lipid peroxidation in these mice. Pycnogeno $l^{ⓡ}$ supplementation increased vitamin E levels in lung and liver. In addition, Pycnogeno $l^{ⓡ}$ attenuated SSCS-mediated lung injury and lipid peroxidation. It appears that the enhanced resistance against SSCS-induced lung injury and lipid peroxidation may be primarily due to the antioxidant property of Pycnogeno $l^{ⓡ}$ in supplemented mice.

Effects of Metallaic Dialkyldithiophosphates on Lubricating Oil (금속 디알킬디티오인산염이 윤활유에 미치는 영향)

  • Moon Tak Jin;Kwon Oh Kwan
    • Journal of the Korean Chemical Society
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    • v.23 no.1
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    • pp.52-58
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    • 1979
  • Metallic dialkyldithiophosphates are widely used in lubricating oils as antioxidant and antiwear agents. Zinc DDTP are used most frequently in lubricating oil. Zinc, lead, tin and cobalt DDTP were prepared with primary and secondary alkyl groups. The effects of oxidation, thermal stability, metal corrosion and antiwear of each metallic DDTP prepared were studied. Based on the results, cobalt DDTP has a significant effect of antiwear on chrome alloy steel comparing with the other metallic DDTP. Also cobalt DDTP has a characteristic property of thermal sensitivity in its color, which was shown by the color change from brown to blue over a certain temperature. Another phenomenon obtained was that all metallic DDTP initiates the effect of antioxidation at the time of reaching to a certain effective acid concentration in lubricating oil.

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Effect of Grape Skin on Physicochemical and Sensory Characteristics of Ground Pork Meat (포도과피 첨가가 분쇄돈육의 이화학적·관능적 특성에 미치는 영향)

  • Choi, Gang-Won;Lee, Jong-Wook
    • Korean journal of food and cookery science
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    • v.32 no.3
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    • pp.290-298
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    • 2016
  • Purpose: This study aimed to investigate the effect of grape skin on the physicochemical properties and sensory score of ground pork meat. Methods: Four types of ground pork were evaluated: T0 without grape skin, T1 with 0.3% grape skin, T2 with 0.7% grape skin, and T3 with 1.0% grape skin. Results: There was no significant group wise difference in VBN content, L-value, b-value, chemical composition of raw and cooked meat, cooking yield, water holding capacity, moisture retention, fat retention, hardness, springiness, cohesiveness, gumminess, chewiness, taste, texture, juiciness, or palatability. Total polyphenol content was highest in T3, and DPPH radical scavenging activity was highest in T2 and T3 (p<0.001). The pH was highest in T0, and was lowest in T3 (p<0.001). The a-value of T2 and T3 were significantly higher than that of T0 (p<0.05). Flavor was highest in T2 among samples (p<0.01). Conclusion: The study results suggest that grape skin may be a useful ingredient in ground pork meat in terms of antioxidant potential, color and flavor.

Physiological and Whitening Effects of Morus alba Extracts

  • Gug, Kyungmee
    • Journal of Integrative Natural Science
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    • v.5 no.1
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    • pp.46-52
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    • 2012
  • Mulberry extracts can be incorporated into skin-whitening products. The compound attributed to lighten the skin is arbutin, a form of hydroquinone that inhibits melanin release by suppressing the tyrosinase enzyme. For the cosmetic applications, the physiological effects of mulberry (Morus alba) extracts were investigated. The water soluble fraction of mulberry contains higher amount of protein (16.28~4.47%) in contrast to fat (1.55~1.41%). In addition, the fraction abundantly contains succinic acid (972.4-275.8 mg/g) and phosphoric acid (1,628.4-121.9 mg/g) in different parts of mulberry. The free radical scavenging ability in water soluble fraction was found to display remarkable effects in comparison with methanol and ethyl acetate fraction. The ethyl acetate-soluble of root and leaf showed remarkable tyrosinase inhibition activity by IC 50 (${\mu}g/ml$). The anticancer activity of methanol fraction obtained from mulberry using human cancer cell lines showed growth inhibition effect (270.14 mg/ml in Calu-6 cells, 295.29 mg/ml in HCT-116, and 332.29 mg/ml in MCF-7 cells, respectively). Based on the results, Morus alba extracts include cosmetic ingredients with antioxidizing and whitening properties.

Inhibitiory effect of green tea extract on $A\beta$-induced PC12 cell death

  • Lee, Sun-Young;Lee, Seung-Ho;Son, Dong-Ju;Kim, Su-Jin;Ha, Tae-Youl;Yun, Yeo-Pyo;Oh, Ki-Wan;Hong, Jin-Tae
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.82.2-83
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    • 2003
  • Beta-amyloid peptide (A${\beta}$) is considered to be responsible for the pathogenesis of the Alzheimer's disease. Several lines of evidence support that A${\beta}$-amyloid-induced cytotoxicity is mediated through the generation of reactive oxygen species (ROS). Agents that are able to scavenge excess ROS may be useful as protecting or reducing agents for development or progress of AD. Green tea extract has been known to have antioxidant property. Our previous studies also demonstrate that green tea extract protected ischemia/reperfusion-induced brain injury by reduction of cell death through scavenging of oxidative damages of macromolecules. (omitted)

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Physicochemical Properties of Bokbunja Jelly Containing Fermented Sea Tangle Saccharina japonica Powder (유산균 발효다시마(Saccharina japonica)를 첨가한 복분자 젤리의 이화학적 품질특성)

  • Choi, Ji-Won;Lee, Yeon-Ji;Moon, Soo-Kyung;Kim, Yong-Tae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.4
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    • pp.408-416
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    • 2022
  • This study investigated the physicochemical properties and physiological activities of jelly prepared from gelatin, sugar, bokbunja extract, and different amounts (0, 0.5, 1, 2 and 3%) of fermented sea tangle Saccharina japonica powder (FSP). The jelly moisture, pH, and sugar content slightly increased with increasing the FSP content. Hardness, springiness, gumminess, chewiness, and cohesiveness also increased with increasing FSP concentration. Jelly antioxidant activity did not change significantly with increasing FSP. In contrast, alcohol dehydrogenase and aldehyde dehydrogenase activities in the jellies increased significantly with increasing FSP concentration. β-secretase inhibitory activity in jellies also increased with increasing FSP concentration. Jellies containing 0.5 or 1% FSP achieved the highest overall sensory acceptance scores. Taken together, these data indicate that addition of FSP to jelly appears to improve its quality and physiological activities.