• Title, Summary, Keyword: corn oil

Search Result 555, Processing Time 0.03 seconds

Effect of Menhaden Oil Feeding on Protein Kinase C Activity and Membrane Phospholipid Profiles in Mouse Epidermal Cells (지방질원으로서 어유가 백서 상피세포의 인지질 조성 및 Protein Kinase C 활성에 미치는 영향)

  • Choe, Myeon
    • Journal of Nutrition and Health
    • /
    • v.27 no.5
    • /
    • pp.419-428
    • /
    • 1994
  • To investigate the effect of dietary menhaden oil on protein kinase C (PKC) activity and membrane phospholipid composition in epidermal cells, female BALB/C mice were fed either menhaden oil or corn oil with two different levels(5% or 20%) for 6 weeks. Membrane phosphatidycholine(PC) was decreased in menhaden oil-fed group. Eicosapentaenoic acid(EPA) and Docosahexaenoic acid(DHA) were only presented in the acyl chain of membrane phospholipid of menhaden oil-fed mice, so that membrane fluidity of the group could be different from the other group. Both cytosolic and membrane-associated PKC activity in epidermal cells were decreased in menhaden oil-fed mice when compare with corn oil-fed mice. Furthermore, rate of PKC transfer from cytosol to membrane in menhaden oil-fed group was not as fast as in corn oil-fed group. Based on these observations, dietary menhaden oil might act differently from other dietary fat in carcinogenesis.

  • PDF

Effect of Different Dietary Fats on Colon Tumor Incidence and in vivo Cell Proliferation in Colonic Mucosa of MNU-Treated Rats (발암원을 투여한 쥐에서 식이지방이 대장의 종양발생과 세포증식에 미치는 영향)

  • 송지현
    • Journal of Nutrition and Health
    • /
    • v.27 no.6
    • /
    • pp.552-562
    • /
    • 1994
  • The study was designed to observe the effect of different dietary fats on the incidence of colorectal tumor and in vivo cell proliferation in colon carcinogenesis. Male Sprague Dawley rats were intrarectally infused with chemical carcinogen(methylnitrosourea, MNU) and fed 16%(w/w) fat diet containing one of dietary fats(beef tallow, corn oil, perilla oil) for 30 weeks. To measure in vivo cell proliferation, the incorporation of 5-bromo-2-deoxyuridine(BrdU) into DNA was localized using the monoclonal anti-BrdU antibody. Large number of tumors were found in the distal colon and tumor incidence was increased in the order of perilla oil(57.7%)$\alpha$-linolenic acid rich in perilla oil could have a protective effect against colon cancer compared to saturated fatty acid or n-6 linoleic acid.

  • PDF

High Vitamin E Supplement is Needed to Have an Anticarcinogenic Effect of Fish Oil (어유와 비타민 E 보강 수준이 쥐간의 전암성 병변에 미치는 영향)

  • 김숙희;강상경;김유미;최혜미
    • Journal of Nutrition and Health
    • /
    • v.31 no.6
    • /
    • pp.1014-1023
    • /
    • 1998
  • The influences of fish oil and different levels of vitamin I supplement on hepatocellular chemical carcinogenesis have been studied. Male Sprague-Dawley rats received diethylnitrosamine (DEN)(200mg/kg body weight) and were subjected to two-thirds partial hepatectomy to induce murine chemical hepatocarcinogenic procedure. Placental glutathione S-transferase(GST-P) positive foci area, antioxidant enzymes(Cu/Zn-superoxide dismutase(SOD), catalase, glutathione reductase (GR), total- glutathione peroxidase (TGPx), glutathione S -transferase (GST)), glucose 6-phosphatase (G6Pase) activities, and lipid peroxidation of microsomes(thiobarbituric acid reactive substances (TBARS)) were measured. Experimental animals were fed 15% corn or fish oil with 0, 40, 1,000, 10,000IU vitamin E /kg diet for 8 weeks. Vitamin E supplements decreased the area of GST-P positive foci in both groups. The higher the vitamin E levels, the smaller the area of GST-P positive foci were noticed. Compared to 0 IU vitamin E, 40 IU in corn oil and 1,000 IU in fish oil groups were effective in decreasing G57-P positive foci area. Fish oil groups tended to have smaller area of GST-P positive foci. fish oil groups showed lower body weight, lower activities of Cu/Zn-SOD and TGPx, higher TBARS contents, higher activities of GST, catalase, G6Pase, GR and higher liver/body ratio than corn oil groups. As the level of vitamin I increased, GST-P positive foci count, catalase activities, and TBARS tended to decrease. G6Pase activities tended to increase in both groups. At higher vitamin E levels, GST activities tended to decrease in fish oil groups. These results suggest that vitamin I has suppressive offects on hepatocellular chemical carcinogenesis probably through antioxidant eH:cts decreasing TBARS contents, $H_2O$$_2$, and organic peroxides. fish oil tended to have greated suppressive offects than corn oil on hepatocellular carcinogenesis. (Korean J Nutrition 31(6) : 1014-1023, 1998)

  • PDF

The Effect of Goroshoe (Acer mono Max.) Seed Oil, and Magnolia denudata Seed Oil on the Lipid Profile in Serum in Mice (고로쇠나무(Acer mono Max.) 씨앗 기름과 목련나무(Magnolia denudata) 씨앗 기름의 섭취가 마우스의 혈중 지질 수준에 미치는 영향)

  • Choi, Kyung-Soon;Shin, Kyung-Ok;Chung, Keun-Hee;Kim, Yong-Hwan;Huh, Seon-Min
    • The Korean Journal of Food And Nutrition
    • /
    • v.25 no.4
    • /
    • pp.770-778
    • /
    • 2012
  • In this study, the effects of intake of Acer mono Max. seed oil, and Magnolia denudata seed oil on the lipid levels of mouse blood were compared to those of commercially available vegetable oils. Five ICR mice were each fed a corn oil, Acer mono Max. seed oil, and Magnolia denudata seed oil supplemented diet for a total of 8 weeks. The serum profiles of mice fed Acer mono Max. seed oil and Magnolia denudata seed oil were high in palmitic acid, oleic acid, and linoleic acid. The saturated fatty acid contents of mice fed Acer mono Max. seed oil and Magnolia denudata seed oil were 3.95% and 0.88%, whereas the unsaturated fatty acid contents were 8.71% and 4.60%, respectively. The liver and spleen weights of mice fed Acer mono Max. seed oil were higher than those fed corn oil (p<0.05). Total cholesterol level was highest in mice fed Acer mono Max. seed oil (p<0.05), whereas there were no significant changes in the cholesterol levels of mice fed Magnolia denudata seed oil and corn oil. The HDL-cholesterol levels in mice fed Acer mono Max. seed oil ($175.80{\pm}27.66mg/d{\ell}$) and in those fed Magnolia denudata seed oil ($145.20{\pm}19.10mg/d{\ell}$) were higher compared to those of mice fed corn oil (p<0.05). In conclusion, there were no significant differences in fatty acid composition between mice fed Acer mono Max. seed oil and Magnolia denudata seed oil. Future study on the antioxidant effects of seed oils should be carried out.

Authentication of Rapeseed Oil Using an Electronic Nose Based on Mass Spectrometry (MS-전자코를 이용한 유채유의 진위 여부 판별)

  • Hong, Eun-Jeung;Son, Hee-Jin;Choi, Jin-Young;Noh, Bong-Soo
    • Korean Journal of Food Science and Technology
    • /
    • v.43 no.1
    • /
    • pp.105-109
    • /
    • 2011
  • To determine mixing ratios for mixtures of rapeseed oil and other oils, an electronic nose (E-nose) based on a mass spectrometer system was used. Rapeseed oil was blended with soy bean oil or corn oil at ratios of 100:0, 97:3, 94:6, 91:9, 88:12, 85:15, and 80:20, respectively. The intensities of each fragment from the mixed rapeseed oil by E-nose based on MS were completely different from those of the soy bean oil and corn oil. The obtained data were used for discriminant function analysis (DFA). DFA plots indicated a significant separation of pure rapeseed oil and soy bean oil or corn oil and their mixtures. The added concentration of soy bean oil or corn oil to rapeseed oil was highly correlated to the first discriminant function score (DF1). When soy bean oil was added to rapeseed oil, it was possible to predict the following equation: DF1=-0.170*conc. of soy bean oil+0.431 ($r^2=0.989$). For corn oil the equation was: DF1=-0.1*conc. of corn oil+0.4 ($r^2=0.844$). The use of an E-nose based on a MS system is as an efficient method for the authentication of pure rapeseed oil.

Effect of Dietary Fat on Hepatic Mitochondrial {TEX}$F_{1}${/TEX}{TEX}$F_{0}${/TEX}ATPase Characteristics in NIDDM-prone Rat

  • Kim, Sook-Bae B.;Kim, Chang-Im
    • Preventive Nutrition and Food Science
    • /
    • v.5 no.4
    • /
    • pp.230-233
    • /
    • 2000
  • The present work was designed to determine whether change in fluidity of the mitochondrial membrane affects mitochondrial {TEX}$F_{1}${/TEX}{TEX}$F_{0}${/TEX}ATPase characteristics in NIDDM-prone BHE/Cdb rat. Isolated mitochondria fom BHE/Cdb rat fed a 6% coconut oil or corn oil were functionally tested by an analysis of its respiration and the coupling of this process to ATP synthesis in presence of oligomycin, a specific inhibitor of oxidative phosphorylation (OXPHOS), that binds to the {TEX}$F_{1}${/TEX}{TEX}$F_{0}${/TEX}ATPase. Mitochondria from rats fed coconut oil were more responsive to the inhibitory action of oligomycin with respect to state 3 respiration, respiratory control (RC) ratio and ADP:P (P/O) ratio than were mitochondria from rats fed corn oil. In state 3 respiration, mitochondria from rats fed coconut oil consumed less oxygen than did mitochondria from rats fed corn oil. RC ratio was lower in the mitochondria from rats fed coconut oil than was mitochondria from rats fed corn oil. In P/O ratio, the mitochondria from rats fed coconut oil had a lower P/O ratio than did mitochondria from rats fed corn oil. The data showed that the chang influidity of the mitochondrial membrane by dietary fat affected mitochondrial {TEX}$F_{1}${/TEX}{TEX}$F_{0}${/TEX}ATPase characteristics. The present study on diet differences in {TEX}$F_{1}${/TEX}{TEX}$F_{0}${/TEX}ATPase characteristics provides considerable insight into the role diets play in the control of mitochondrial function, expecially OXPHOS in NIDDM with mitochondrial defects.

  • PDF

Effect of Intake of Perilla oil or Corn oil and 2-Acetylaminofluorene Treatment on Lipid Peroxidation PG $E_2$ and TX $B_2$ Productions in Rats (들기름, 옥수수기름의 섭취와 2-Acetylaminofluorene 투여가 지질과산화물 및 PG $E_2$ TX $B_2$ 생성에 미치는 영향)

  • 곽충실
    • Journal of Nutrition and Health
    • /
    • v.25 no.5
    • /
    • pp.351-359
    • /
    • 1992
  • This study was conducted to compare the effects of perilla oil or corn oil on lipid peroxidation and eicosanoid productions which are associated with the promotion of carcinogenesis. in liver or blood in rats. Male Sprague-Dawley8 weaning rats were fed on semisynthetic diets containing 15%(w/w) beef fat(BF). corn oil(CO) or perilla oil(PO) Three weeks after the half of rats in each diet group were injected with a single dose of 50mg 2-acetylaminofluorene (AAF)/Kg BW hepatocarcinogen intraperitoneally 3 times at 2-day interval and all of the rats were sacrificed after 8 weeks from the first injection. The rats fed on different dietary fats without 2-AAF treatment had not different MDA produc-tion and conjugated diene content in liver microsome. CO+AAf group had significantly higher conjugated diene content than BF+AAF and PO+AAF groups. and lower glucose-6-phospha-tase activity than BF+AAF group But PO+AAF had similar conjugated diene content to BF+AAF group and significantly lower MDA production than BF+AAF and CO+AAF groups. The hepatic mocrosomal lipid peroxidation was slightly greater in CO group than in PO group though perilla oil(P/S=9.67) has much more polyunsaturated fatty acids than corn oil(P/S=2.92) PG E2 level in liver and TX B2 level in plasma were significantly higher in CO group than in BF and PO groups. TX B2 level was lowered in CO and BF groups by 2-AAF treatment. These results reach to the contclousion than the type of dietary fatty acid as well as the P/S ratio has effect on hepatic microsomal lipid peroxidation and eicosanoid production and perilla oil or linolenic acid(n3) might be less effective on lipid peroxidation or PG E2 and TX B2 mediated tumor promotion than corn oil or linoleic acid(n6).

  • PDF

Effect of Random Interesterification on the Physicochemical Properties in Blends of Corn Germ Oil and Fully Hydrogenated Soybean Oil (옥수수기름과 극도경화대두 혼합유의 이화학적 성질에 대한 무작위 에스테르 교환의 영향)

  • Shin, Hyo-Sun;Chung, Kwang-Hyun;Chun, Je-Hyun
    • Korean Journal of Food Science and Technology
    • /
    • v.23 no.3
    • /
    • pp.360-365
    • /
    • 1991
  • Effect of random interesterification on the physicochemical properties in blends of corn germ oil and fully hydrogenated soybean oil was studied. Interesterification by using 0.4% sodium methoxide at $80^{\circ}C$ was completed in 35 minutes as determined by HPLC analysis for triglyceride composition. Changes of melting point, solid fat content, crystal form, fatty acid and triglyceride composition was investigated. After the interesterification, melting point and solid fat content were decreased, and coarse and large crystals were modified to fine and uniform. Fatty acid composition was not altered but triglyceride composition was largely altered. Interesterified blends of corn germ oil and fully hydrogenated soybean oil made with 80%, 20% and 75%. 25%, respectively, had desirable characteristics of the margarine for home use.

  • PDF

Effect of Dietary Lipids on Growth on Nile Tilapia, Oreochromis niloticus (지질 종류에 따른 나일틸라피아의 성장 효과)

  • KANG Seok-Joong;CHOI Byeong-Dae;JEONG Woo-Geon
    • Journal of Aquaculture
    • /
    • v.5 no.2
    • /
    • pp.157-165
    • /
    • 1992
  • Experiments were conducted to find out suitable dietary lipids in the practical feed for Nile tilapia, Oreochromis nilotius. Soybean oil, corn oil, fish oil or cuttlefish liver oil was mixed in the diet and tested. The best weight gain and feed efficiency were obtained from the fish fed soybean oil or corn oil, both rich in 18 : 2n-6. But the growth rate of fish fed diet with fish oil or cuttlefish liver oil were inferior. The levels of 20 : 3n-9 in the total lipid were not different in all tested lipids, but that in the polar lipid of the fish oil or cuttlefish liver oil were lower than that in the soybean oil or corn oil. Thus, vegetable oil such as soybean oil or corn oil, rich in 18 : 2 n-6, were suitable as dietary lipid for Nile tilapia. Unlike other fish species, fish oil or cuttlefish liver oil showed no essential dietary value for this species.

  • PDF

Effect of Egg Albumen, Vegetable Oil, Corn Bran, and Cooking Methods on Quality Characteristics of Chicken Nuggets Using Response Surface Methodology

  • Pathera, Ashok Kumar;Riar, Charanjit Singh;Yadav, Sanjay;Singh, Pradeep Kumar
    • Food Science of Animal Resources
    • /
    • v.38 no.5
    • /
    • pp.901-911
    • /
    • 2018
  • Response surface methodology was used to study the effect of egg albumen (5-15 g), vegetable oil (5-15 g), and corn bran (5-15 g) on sensory and textural (firmness and toughness) quality of chicken nuggets cooked by the oven, steam, and microwave methods. The egg albumen and vegetable oil had a positive linear effect but corn bran had a negative linear effect at p<0.01 on sensory overall acceptability scores of nuggets. Firmness and toughness scores were increased significantly (p<0.01) with the increase in corn bran level in the formulation. The optimum level of egg albumen, vegetable oil, and corn bran were obtained and validated. Cooking methods also affected the sensory and textural quality of nuggets. Steam cooked nuggets had higher values of sensory scores than oven and microwave cooked nuggets. Oven cooked nuggets showed higher values of firmness and toughness than steam and microwave cooked nuggets. Results of this study suggest that emulsion based meat products can be enriched with dietary fiber source like corn bran without compromising the sensory and textural quality of the products.