• 제목, 요약, 키워드: vitamins

검색결과 876건 처리시간 0.047초

Effect of MEM Vitamins Supplementation of In vitro Maturation Medium and In vitro Culture Medium on the Development of Porcine Embryos

  • Kim, J.Y.;Lee, E.J.;Park, J.M.;Park, H.D.
    • 아세아태평양축산학회지
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    • v.24 no.11
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    • pp.1541-1546
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    • 2011
  • This study was carried out to examine the influence of minimum essential medium (MEM) vitamins supplementation to in vitro maturation medium and in vitro culture medium on the development of porcine embryos. Porcine embryo development was investigated following cultivation in both in vitro maturation and culture medium with the supplementation of MEM vitamins (0, 0.1, 0.2 and 0.4%) using immature oocytes collected from the ovary of prepubertal gilts. Embryo development was observed and the total cell number in each blastocyst generated under the culture conditions was quantified following supplementation of the medium. The embryonic development rate of the blastocyst and hatched blastocyst was higher, but not significantly so, when 0.4% MEM vitamins were supplemented to the in vitro maturation medium of the porcine oocyte. Interestingly, the total number of cells in the blastocyst was significantly higher in the in vitro maturation MEM vitamins supplemented group compared to either the untreated group or the group which had MEM vitamins supplemented to both in vitro maturation and in vitro culture medium simultaneously (p<0.05). Therefore, the supplementation of 0.4% MEM vitamins to the in vitro mature medium has a beneficial effect on the embryonic development of in vitro produced blastocysts derived from the immature porcine oocytes.

비타민류가 곰팡이의 유지생산에 미치는 영향 (Effect of Vitamins on Lipid Accumulation of Molds)

  • 손병효;정태명;김용균;이영근
    • 한국응용과학기술학회지
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    • v.2 no.2
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    • pp.15-20
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    • 1985
  • Influence of vitamins on the felt and lipid production of Aspergilus niger var. macrosporus, Aspergillus fumigatus and penicillium notatum were investigated after 10 days of incubation at $30^{\circ}C$ under static culture condition. The felt of molds were lower in the media containing vitamins than control medium. The lipids produced by each strains were highest yields in media containing vitamins. Among of these Aspergillus niger var. macrosporus and Aspergillus fumigatus produced. 4.6g and 5.28g in medium containing inositol 2.5mg/l and 0.5mg/l, respectively; while Penicillium notatum produced 1.51g in a medium containing thiamine 10mg/l. The major fatty acid of lipids were palmitic acid, stearic acid, oleic acid and linoleic acid. Aspergillus niger var. macrosporus was lower palmitic acid in media containing vitamins than control medium, While linoleic acid was higher in media containing thiamine and inositol. Aspergillus fumigatus was lower oleic acid in media containing vitamins than control medium, While linoleic acid was higher in media containing vitamins. Peniillium notatum was lower palmitic acid, oleic acid and stearic acid in media containing vitamins but linoleic acid was higher. The composition of fatty acid of lipids changed depending on the media containing vitamins but hardly found a certain tendency except linoleic acid which was higher in a media containing thiamines and inositols. The degree of unsaturation of fatty acids in the lipids were comparatively higher in media containing vitamins than control medium.

우리나라 일부 초등학생과 중학생의 영양강화식품 섭취 실태 및 영양강화식품을 통한 비타민과 무기질 섭취량 조사 (Survey on the Patterns of Fortified Food Consumption and Intake of Vitamins and Minerals in Fortified Foods by Elementary School and Middle-School Students in Korea)

  • 김선효
    • 한국식생활문화학회지
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    • v.26 no.3
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    • pp.295-306
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    • 2011
  • This study was performed to investigate patterns of fortified food (FF) consumption and intake of vitamins and minerals from FFs among 577 Korean children (12.4 years of age) who attended elementary or middle school. FFs eaten by children as a snack were surveyed using the food record method during 3 days, including 2 week days and one weekend. As a result, 114 FF items were eaten by the children, and several kinds of nutrients such as vitamin A, D, E, B complex, C, calcium (Ca), iron (Fe), and zinc (Zn) were fortified in these foods. Ca-FFs (65.8%) were most frequently consumed, followed by vitamin C-FFs (33.4%) and vitamin D-FFs (33.3%). The number of FF items in each food group was the most in the milk group (n=24, 21.0%), followed by the beverage group (n=19, 16.7%), and the cookie/bread/cake group (n=17, 14.9%). Fortified nutrients in FFs were in various combinations, but the major combination patterns were Ca, Ca plus vitamins, Ca plus vitamins plus other minerals, and Ca plus other minerals. Daily mean intakes of vitamins and minerals from the FFs were 66-300% more than those of the recommended nutrient intake (RNI ) or adequate intake (AI) for most vitamins and minerals. Daily maximum intakes (95th percentile) of vitamins and minerals from FFs were 1-15 times the RNI or AI for most vitamins and minerals. Vitamin and mineral consumption ratios from each FF group were different according to the kind of fortified nutrient. For example, vitamin C was mostly eaten in fortified beverages (46-54%), and Fe was mostly eaten in fortified cookie/breads/cakes (87%). The above results show that FF consumption varied widely among the children, and that most of the children's foods were fortified with several vitamins and minerals without a common rule; thus, subjects risked over consuming vitamins and minerals by eating FFs. Therefore, practical guideline on FF use for children's optimal nutrition and health should be provided through nutrition education.

Intercalation of Vitamer into LDH and Their Controlled Release Properties

  • Choy, Jin-Ho;Son, You-Hwan
    • Bulletin of the Korean Chemical Society
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    • v.25 no.1
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    • pp.122-126
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    • 2004
  • Biofunctional nanohybrids are synthesized from layered double hydroxide (LDH) and the vitamins such as ascorbic acid and topopherol acid succinate. Either ion exchange or copricipitaion leads to successful intercalation of the vitamins into gallery space of LDH that offers a new route to safe preservation of bioactivity as well as controlled release. Intercalations of vitamins are clearly reflected on the increase in the basal spacing of ZnAl-(Nitrate) LDH from 8.5 ${\AA}$ to 10.5 ${AA}$ for ascorbate, and 49.0 ${AA}$ for tocopherol acid succinate, respectively. No significant change in UV-Vis and IR absorption characteristics of the intercalated vitamins strongly supports the safe maintenance of their bioactivities without any deterioration of chemical and structural integrity. Furthermore, it is shown that the hybridized vitamins could be discharged in a controlled kinetics.

비타민 강화 방법에 따른 UHT 우유의 비타민 함량에 대한 연구 (A Study on the Vitamins Contents in UHT Milk according to Fortification Methods)

  • 인영민;정인경;정석근;함준상
    • 한국축산식품학회지
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    • v.22 no.2
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    • pp.172-178
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    • 2002
  • 우유 중에는 여러 종류의 생리활성물질과 우리 몸에 꼭 필요한 비타민이 매우 소량 함유되어 있어, 그 강화를 목적으로 유가공 산업의 발전과 더불어 다양한 비타민 강화우유가 소개되고 있다. 이에 본 연구에서는 가공 처리 및 비타민 강화 방법에 따른 비타민류의 손실율을 조사하였다. 실험 결과, UHT 처리 후에 비타민 C는 60~70% 가까운 손실율을 보였으며, 비교적 열에 안정하다고 알려진 지용성 비타민인 비타민 D$_3$와 비타민 E도 30~40%의 손실율을 보여 주었다. 이에 반해 비타민을 캡슐 형태로 강화하였을 경우에는 수용성 비타민의 손실율은 상대적으로 매우 낮음을 알 수 있었다. 이는 캡슬에 의해 열뿐 아니라 산소, 빛 등이 효과적으로 차단되어 비타민의 손실이 최소화된 것이라 생각된다. 따라서 열처리에 의한 시유 및 강화우유 중의 비타민의 손실을 최소화하기 위해서는 우유의 살균 온도 및 시간, 강화제 첨가 방법 등에 대한 지속적인 연구가 이루어져야 할 것으로 사료된다.

항산화비타민 보충이 인슐린비의 의존형 당뇨병 환자에서 항산화상태에 혈액지방성분에 미치는 영향 (Effects of Antioxidant Vitamins Supplementation on Antioxidative Status and Plasma Lipid Profile in Korean NIDDM Patients)

  • 강남아
    • Journal of Nutrition and Health
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    • v.32 no.7
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    • pp.775-780
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    • 1999
  • We investigated the effects of antioxidant vitamins supplementation on antioxidative status and plasma lipid profile in female Korean non-insulin diabetes mellitus(NIDDM) patients. Forty-five patients were groups by types of vitamin to take into three groups-Vitam in E group(400IU/day, n=15), Vitamin C group (1,000mg/day, n=15) and Vitamin E plus C group (400 IU plus 1,000mg/day). Supplementation period was 4 weeks. After vitamins supplementation, plasma vitamin E concentration significantly increased in vitamin E and vitamin E + C group, but plasma retinol concentration were not affected by vitamin E or vitamin C supplementation. And plasma levels of lipid peroxide measured as thiobarbituric acid reactive substances(TBARS), indicator of lipid peroxidation and increased susceptibility of LDL towards lipid peroxidation, were significantly decreased in all three groups after vitamins supplementation. Also catalase activities in erythrocytes were significantly decreased after antioxidant vitamin supplementation in all subjects. And after vitamins supplementation, post prandial 2 hour glucose and total cholesterol levels was decreased in all subjects. And after vitamins supplementation, post prandial 2 hour glucose and total cholesterol levels was decreased in all patients, especially there was a significant difference in vitamin C, Vitamin E + C group. In this study, antioxidant vitamins supplementation might have a protective function against the free radical-mediated lipid peroxidation and decrease the plasma total cholesterol levels in Korean female NIDDM patients.

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비타민과 무기질의 새로운 영양학적 의미 (New Nutritional Concepts of Vitamins and Minerals)

  • 윤희상
    • Clinical and Experimental Pediatrics
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    • v.48 no.12
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    • pp.1295-1309
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    • 2005
  • Nowadays, the nutritional deficits are rarely seen in Korea. However, an increased availability of the highly palatable energy dense, nutrient-poor foods increases the risks of obesity and deficits of vitamins and minerals in the general population. Also, optimum intake of vitamins and minerals, which varies with age and genetic back ground, might not suffice the poor, young, obese, and elderly people. Young girls and individuals participating in weight reductions and aesthetic components are prone to micronutrient deficiencies because they restrict food intake and specific micronutrient rich foods. An inadequate intake of vitamins or minerals is associated with reduced physical performance and exercise capacity, increased obesity, decreased cognitive function, increased DNA damages such as single- and double-stranded breaks or oxidative DNA lesions, and accelerated aging process and increased neuronal damages with mitochondrial oxidative decay. Most of these deleterious effects of the deficit could be prevented by a one tablet of multivitamins with a good balanced diet. High dose B vitamins are frequently administered to overcome the metabolic inadequacy to the people with the less functional enzymes with increased Km values for their coenzymes due to the single gene mutation or due to the single nucleotide polymorphisms. And some certain antioxidant vitamins are also used in large quantities to overcome the oxidative stress and to repair the damages. In this review, new nutritional concepts of some vitamins and minerals, which are widely used and useful for the children, will be discussed.

Effect of B-complex vitamins on the antifatigue activity and bioavailability of ginsenoside Re after oral administration

  • Chen, Yin Bin;Wang, Yu Fang;Hou, Wei;Wang, Ying Ping;Xiao, Sheng Yuan;Fu, Yang Yang;Wang, Jia;Zheng, Si Wen;Zheng, Pei He
    • Journal of Ginseng Research
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    • v.41 no.2
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    • pp.209-214
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    • 2017
  • Background: Both ginsenoside Re and B-complex vitamins are widely used as nutritional supplements. They are often taken together so as to fully utilize their antifatigue and refreshing effects, respectively. Whether actually a drug-nutrient interaction exists between ginsenoside Re and B-complex vitamins is still unknown. The objective of this study was to simultaneously investigate the effect of B-complex vitamins on the antifatigue activity and bioavailability of ginsenoside Re after their oral administration. The study results will provide valuable theoretical guidance for the combined utilization of ginseng and B-complex vitamins. Methods: Ginsenoside Re with or without B-complex vitamins was orally administered to mice to evaluate its antifatigue effects and to rats to evaluate its bioavailability. The antifatigue activity was evaluated by the weight-loaded swimming test and biochemical parameters, including hepatic glycogen, plasma urea nitrogen, and blood lactic acid. The concentration of ginsenoside Re in plasma was determined by liquid chromatography-tandem mass spectrometry. Results: No antifatigue effect of ginsenoside Re was noted when ginsenoside Re in combination with B-complex vitamins was orally administered to mice. B-complex vitamins caused to a reduction in the bioavailability of ginsenoside Re with the area under the concentration-time curve from zero to infinity markedly decreasing from $11,830.85{\pm}2,366.47h{\cdot}ng/mL$ to $890.55{\pm}372.94h{\cdot}ng/mL$. Conclusion: The results suggested that there were pharmacokinetic and pharmacodynamic drug-nutrient interactions between ginsenoside Re and B-complex vitamins. B-complex vitamins can significantly weaken the antifatigue effect and decrease the bioavailability of ginsenoside Re when simultaneously administered orally.

고성능 액체 크로마토그래피에 의한 식품 및 비타민 제제중의 지용성 비타민의 동시 분석에 관한 연구 (A Study on the Simultaneous Analysis of Fat-Soluble Vitamins in Food Stuffs and Vitamin Products by High Performance Liquid Chromatography)

  • 김풍작;김종혁
    • 대한화학회지
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    • v.33 no.1
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    • pp.46-54
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    • 1989
  • 식품 및 비타민 제제중에 존재하는 지용성 비타민의 추출 및 동시 정량법을 검토하였다. 역상 액체크로마토그래피에 의한 지용성 비타민의 동시 분리 및 정량은 메탄올 : 물 = 95 : 5 이동상으로 Novapak $C_{18}$ 컬럼하에서 이루어졌다. 비타민의 검출에는 UV검출기를 사용하였으며 검출감도를 증가시키기 위하여 분석중 UV 검출파장을 각각의 비타민 용리시간에 따라 최대흡수 파장인 330, 265, 285 및 290nm로 변경하였다. 지용성 비타민의 분리 및 분석은 40분안에 완료되었다. 시료의 전처리에는 알카리 가수분해법과 효소가수분해법을 이용하였으며, 비타민의 추출은 액체-액체추출법과 액체-고체추출법을 이용하였다. 비타민 A,D, E 분석에는 알카리 가수분해법 및 효소가수분해법이 비타민 K 분석에는 효소가수분해법만이 좋은 결과를 나타냈으며, 비타민 추출에는 액체-액체 추출시 diethyl ether, pentane 및 n-hexane이, 액체-고체 추출시 silica 카트리지가 좋은 추출효과를 나타냈다.

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Effect of Dietary Fat-soluble Vitamins on Growth Performance and Nutrient Digestibility in Growing Pigs

  • Lohakare, J.D.;Lee, S.H.;Chae, B.J.
    • 아세아태평양축산학회지
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    • v.19 no.4
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    • pp.563-567
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    • 2006
  • Two experiments were conducted to compare the effect of various vitamins on performance and digestibility in growing pigs. In experiment 1, a total of 54 pigs ($L{\times}Y{\times}D$, $42.73{\pm}2.40kg$) were assigned to three treatments in a randomized complete block design with three replicates (6 pigs/pen) for 40 days. The three dietary treatments were: 100% fat-soluble vitamins (FSV) and water-soluble vitamins (WSV); 150% FSV and 100% WSV of NRC (1998); and 100% FSV and 150% WSV of NRC (1998). In experiment 2, a total of 180 pigs ($L{\times}Y{\times}D$, $28.20{\pm}3.05 kg$) were assigned to four treatments in a completely randomized design with three replicates for four weeks (15 pigs/pen). The four dietary treatments were, 150% vitamin A and 100% other vitamins, 150% vitamin D and 100% other vitamins, 150% vitamin E and 100% other vitamins, and 150% vitamin K and 100% other vitamins. In experiment 1, there were significant differences in growth performance and digestibility of nutrients among the treatments. The ADG, ADFI and FCR of pigs fed 150% FSV diet were better (p<0.05) than those fed the control diet. However, there were no differences (p>0.05) in ADG, ADFI and FCR between pigs fed the control and 150% WSV diets. Digestibilities of dry matter, gross energy and calcium were improved in 150% FSV treatment group compared with control (p<0.05). However, the improvement was similar when compared with 150% WSV except for Ca. In experiment 2, there were no differences (p>0.05) in ADG, ADFI and FCR and nutrient digestibility between the fat-soluble vitamin treatments when fed at the 150% level. In conclusion, growing pigs were more responsive to additional fat-soluble vitamin supplements over the requirements suggested by NRC (1998) than to water-soluble vitamin supplements as measured by growth performance and digestibility of nutrients.