• Title, Summary, Keyword: isoflavone

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The Effect of Isoflavone and/or Grape Seed Oil Supplementation on Blood Lipid Profiles and Bone Strength in Ovariectomized Female Rats (이소플라본과 포도종실유의 보충이 난소절제 흰쥐의 혈중지질 패턴 및 골격강도에 미치는 영향)

  • 정혜경;최창숙;이지현;박원종;강명화
    • Journal of Nutrition and Health
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    • v.36 no.7
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    • pp.667-674
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    • 2003
  • The study was performed to investigate the effects of isoflavone and/or grape seed oil supplementation on serum and liver lipid profiles and bone strength in ovariectomized female rats. Female Spraque-Dawley rats were assigned into 4 groups of ovariectomized (O), isoflavone (0.085 mg/100 g b.w/day) in ovariectomized rats, grape seed oil in ovariectomized rats and isoflavone and/or grape seed oil in ovariectomized rats. After 8 weeks, biochemical profiles of serum, liver and bone were analyzed. Total food intakes, body weight gains and FER (food efficiency ratio) were not statistically significantly different among groups. Total cholesterol, triglyceride and LDL-cholesterol levels in serum were decreased by fed of isoflavone and/or grape seed oils. However, crude lipid and total cholesterol contents in liver were not affect of isoflavone and/or grape seed oil. The hepatic glutathione contents were increased by isoflavone and/or grape seed oil fed. The hepatic glutathione-S-transferase activity in isoflavone and/or grape seed oil supplemented groups were higher than that O group. Bone (scapular and femur bone) dry weight, femur of max weight and bending strength were no significant difference among groups. Our finding suggest that isoflavone/grape seed oils might have potential role for serum lipid profiles improvement and bone strength in vivo.

Microencapsulation of Isoflavone Derived from Pueraria (칡 유래 isoflavone의 미세캡슐에 관한 연구)

  • Kim, Deok-Han;Seok, Jin-Seok
    • Journal of Dairy Science and Biotechnology
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    • v.21 no.2
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    • pp.105-113
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    • 2003
  • This study was carried out to investigate the addition of Pueraria derived isoflavone into milk by means of microencapsulation technique. The yield microencapsulation sensory attributes, and capsule stability of Pueraria derived isoflavone microcapsules in milk were measured during 12 days. Coating materials used was polyglycerol monostearate(PGMS. The encapsulation yield of Pueraria derived isoflavone was 72.5% with PGMS when the ratio of coating material to core material was 15:1. The rate of pueraria derived isoflavone release was 15, 20, and 25% when stored at 4, 20, and $30^{circ}C$ for 12 days in milk respectively. In sensory evaluation, beany flavor and color of microcapsuled Pueraria derived isoflavone added milk were significantly different from control and uncapsuled Pueraria derived isoflavone added milk, however, bitterness was not significantly different. In vitro study, microcapsules of pueraria derived isoflavone in simulated gastric fluid with the range of 3 to 6 pHs were released 3.0${\sim}$15.0%, however, the capsules in simulated intestinal fluid with pH 7 were released 95.7% for 40 min incubation time. In conclusion, this study provided that PGMS as coating materials was suitable for the microencapsulation of Pueraria derived isoflavone, and the capsule containing milk was not affected with sensory attribute.

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Analysis of Isoflavones for 66 Varieties of Sprout Beans and Bean Sprouts (66품종 나물콩과 콩나물의 isoflavone 분석)

  • Kim, Youn-Hee;Hwang, Young-Hyun;Lee, Hye-Sung
    • Korean Journal of Food Science and Technology
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    • v.35 no.4
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    • pp.568-575
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    • 2003
  • Selection of high-quality varieties of sprout bean and bean sprout containing high levels of total isoflavones was performed by high performance liquid chromatography. The range and mean of total isoflavone contents of sixty six varieties of sprout beans were $247{\sim}2,256$ and $1209{\pm}470\;mg/kg$, respectively, with KLG10618, KLG11118, KLG10600, KLG10022, KLG1085 and sohokong containing the highest amounts of isoflavone among the samples. Medium-sized bean variety with green seed-coat color contained highest amount of total isoflavones among samples. The range and mean of total isoflavone contents of thirty varieties of bean sprouts were $768{\sim}3,343$ and $1,898{\pm}577\;mg/kg$, respectively, with soho bean sprout containing the highest total isoflavone content (3,343 mg/kg, dry basis). Total isoflavone contents of bean sprouts increased gradually during cultivation period, reaching maximum level on the 5th day of cultivation, and were the highest in the order of roots, cotyledon, and hypocotyl.

Effects of Isoflavone-Rich Bean Sprout on the Lipid Metabolism of the Ethanol-Treated Rats (고 Isoflavone 콩나물이 만성 에탄올 투여 흰쥐의 지질대사에 미치는 영향)

  • Kim, Kwang-Ok;Lee, Hye-Sung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.12
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    • pp.1544-1552
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    • 2007
  • The present study evaluated the effects of isoflavone-rich bean sprout on the lipid metabolism in ethanol-treated rats. Fifty male Sprague-Dawley rats were randomly divided into five groups: normal control, alcohol control, low soybean sprout+ethanol (low SS), high soybean sprout+ethanol (high SS) and isoflavone extract+ethanol (IE). They were fed experimental diets based on Lieber-DeCarli liquid diet for 40 days. Body weight, food intake and feed efficiency ratio (FER) of ethanol-treated groups were significantly suppressed compared with that of the normal control group. Among the ethanol-treated groups, high SS group showed in significant increase in the body weight, food intake and FER. Supplementation of isoflavone-rich soybean sprout powder or isoflavone extract significantly decreased plasma triglyceride (TG), total cholesterol (TC), atherogenic index (AI) and increased the ratio of HDL-cholesterol to TC. Supplements also significantly decreased total lipid, TG and TC in liver tissue compared with that of alcohol control. There was a significant decrease in hepatic lipid peroxidation products in IE group compared with other ethanol-treated groups. This results suggest that supplementation of isoflavone-rich bean sprout powder may exert beneficial effects on lipid metabolism in chronically alcohol-treated animals by improving lipid profiles in plasma and liver tissues.

Purification of Isoflavone from Soybean Hypocotyl Using Different Solvents

  • Park, Yeon-Bae;Kim, Min-Jung;Lee, Yoon-Bak;Sohn, Heon-Soo;Lee, Ok-Hee;Kim, Kang-Sung
    • Korean Journal of Environmental Biology
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    • v.21 no.3
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    • pp.245-250
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    • 2003
  • Composition of isoflavone in cotyledon and hypocotyl of soybean were detected using HPLC. Optimum conditions for extracting isoflavone from hypocotyl were studied as well. Contents of isoflavone in soybean cotyledon and hypocotyl were 482.5 mg 100 $g^{-1}$ and 3453.3 mg 100 100 $g^{-1}$, respectively. Hypocotyl contained 7~8 times move isoflavone than corresponding cotyledon of the soybean. Malonyl glycoside accounted for move than 70% of the total isoflavone, followed by glycoside, acetyl glycoside, and aglycone. Aqueous ethanol of 60~80% was the most suitable solvent for extracting isoflavone from the hypocotyl. Optimum temperature and time was $90^{\circ}C$, 1hr. Acetic acid, NaCl, and NaOH added to 80% ethanol suppressed extraction yield of the phytochemieal.

Effects of Color Differentiation and Seed Size of Soybean on Isoflavone Concentration in Soybean (콩의 색차와 종자크기에 따른 종실의 isoflavone 함량변이)

  • Cho, Y.S.;Song, J.;Koo, B.C.;Seo, J.H.;Kim, S.D.;Choi, I.S.;Shin, J.C.;Yang, W.H.;Ha, T.J.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.52 no.4
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    • pp.359-362
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    • 2007
  • Isoflavone concentration(daidzein, glycitein, and genistein) of soybean(Taekwangkong and Sowonkong) were analyzed for studying the relationship between seed size and isoflavone concentration and seed coat color and isoflavone concentration. The isoflavone concentration was the greatest in daidzein then followed by genistein, however glycitein was the smallist of all. The isoflavone concentration was increased with the increasing of the ripening degree and seed size.

Estimated Isoflavone Intake from Soy Products in Korean Middle-aged Women (한국 중년여성의 대두식품을 통한 이소플라본 섭취 수준 조사)

  • Lee, Soo-Kyung;Lee, Min-June;Yoon, Sun;Kwon, Dae-Joong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.5
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    • pp.948-956
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    • 2000
  • There is growing evidence that soy isoflavone play beneficial roles in the prevention of chronic diseases such as hormone dependent cancers, cardiovascular diseases, osteoporosis and also reduced incidence of menopausal symptoms. However current data are not sufficient to determine the effective doses for beneficial as well as harmful effects and to support dietary recommendation for isoflavones. Since soy products containing isoflavone are one of the common food items that Koreans consume daily basis, assessing consumption of soy isoflavone by Koreans will give a valuable information on making dietary recommendations for isoflavones. the present study was designed to assess dietary intake of isoflavone of Korean middle-aged women who might receive the most beneficial effects from isoflavone consumption thereby prevent post menopausal related symptoms and diseases. In this study isoflavone contents of soy products were analyzed and soy products and isoflavone consumption of these subjects were assessed by a self-reported dietary questionnaire and isoflavone intake data base. Subjects were consisted of 178 Korean women (35~60 y) who live in urban and rural area. All subjects provided detailed information on demographics, anthropometry, health history, menopausal symptoms, health history, menopausal symptoms, and dietary intake using food frequency questionnaire (FFQ) which was developed for Koreans. The average age of the subjects was 46.6 years. The soy products which the subjects frequently consumed were soybean paste soup, braised fried soybean, tofu residue stew, tofu, soy milk, natto stew, bean sprouts, and soybean broth which contained 10.68 mg, 3.34 mg, 2.44 mg, 2.42 mg, 2.42 mg, 1.12 mg, 1.02 mg, 0.33 mg of isoflavone per 100 g, respectively. The estimated daily intake (EDI) of isoflavones ranged from 0 to 144.3 mg, and the mean daily isoflavone (sum of daidzein and genisten) intake of the subjects was 24.41 mg.

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Isoflavone, Phytic Acid and Oligosaccharide Contents of Domestic and Imported Soybean Cultivars in Korea (국내산 콩과 수입콩의 Isoflavone, Phytic Acid 및 Oligosaccharides 함량)

  • 류승현;김성란;김경탁;김성수
    • The Korean Journal of Food And Nutrition
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    • v.17 no.2
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    • pp.229-235
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    • 2004
  • Chemical composition, total dietary fiber(TDF), oligosaccharide, isoflavone and phytic acid contents of seven domestic and three imported soybean cultivars were determined. TDF contents were ranged from 16.83 to 21.71%(w/w) without remarkable differences among soybean cultivars. Phytic acid contents of domestic cultivars such as Geomjongkong 1 (3.02%) and Dawonkong (2.92%) were higher than imported ones such as Canadian (2.07%) and American (2.22%) soybeans for soybean sprout and US No. 1 (2.16%). The phytic acid contents of cotyledon parts were 1.5 to 2 times higher than those of hypocotyl parts. Isoflavone contents in whole seed were wide ranged from 371 to 2,398 $\mu\textrm{g}$/g among cultivars and it were existed mainly as glucoside isomers. Profiles of isoflavone aglycones were composed of 52% genistein, 36% daidzein and 11% glycitein. Hwanggumkong, Dawonkong, Geomjongkong 1 and American soybean for sprout contained lower isoflavone than others. Hypocotyl parts of soybeans contained from 6120.1 to 16921.1 $\mu\textrm{g}$/g isoflavone with ratio of 48% glycitein, 35% daidzein and 10% genistein. Isoflavone contents of cotyledon parts were ranged 375-2393 $\mu\textrm{g}$/g, composition of which had no glycitein, 55% genistein and 38% daidzein. Oligosaccharide contents were similar among cultivars. Stachyose of 3.0-3.9%, raffinose of 0.8-1.2%, sucrose of 4.5-7.8% and fructose of 0.3-0.8% were determined.

Anticancer Effects of the Isoflavone Extract from Chungkukjang via Cell Cycle Arrest and Apoptosis in MDA-MB-453 Cells (청국장에서 얻은 Isoflavone의 MDA-MB-453세포에서 항암효과 및 관련 기전)

  • Shin, Jin Young;Kim, Taehee;Kim, An Keun
    • YAKHAK HOEJI
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    • v.58 no.1
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    • pp.33-39
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    • 2014
  • The objective of this study is to evaluate the anticancer effects of the isoflavone extract from Chungkukjang in human breast cancer, MDA-MB-453 cells. For this study, MDA-MB-453 cells were treated with 12.5, 25, and $50{\mu}g$ isoflavone extract for 24, 48, and 72 hr. Cell proliferations were decreased in a time- and dose-dependent manner. Reduced cell proliferation was suspected by apoptosis or cell cycle arrest. Therefore, after treatment of $50{\mu}g$ isoflavone extract, apoptotic cells were investigated by annexin V staining. The results indicated that isoflavone extract increased the number of early apoptotic cells compared with control. Cleaved PARP was also increased. Next, we investigated the cell cycle and related proteins. The isoflavone extract leads to cell cycle arrest at the G2/M phase. Moreover isoflavone extract had influenced cell cycle relate proteins such as cyclin B1, cyclin A, and p21. These results suggest that isoflavone extract from Chungkukjang induce apoptosis and cell cycle arrest at G2/M phase via regulation of cell cycle-related proteins in MDA-MB-453 cells.

Variation of Isoflavone Contents in Korean Soybean Germplasms (국내 콩 유전자원의 Isoflavone 함량 변이)

  • Choung, Myoung-Gun;Kang, Sung-Taeg;Han, Won-Young;Baek, In-Youl;Kim, Hyeun-Kyeung;Shin, Doo-Chull;Kang, Nam-Suk;Hwang, Young-Sun;An, Young-Nam;Lim, Jung-Dae;Kim, Kwan-Su;Park, Si-Hyung;Kim, Sun-Lim
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.spc1
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    • pp.146-151
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    • 2006
  • Isoflavone in soybean is known to have the important physiological functions such as antioxidative, estrogenic, and anti-tumor activities. Therefore, isoflavone content is considered as important aspect of soybean quality. The objectives of this study are to determine the isoflavone contents of soybean germplasms including major cultivars in Korea, and to provide the basic information of isoflavone far development soybean cultivar containing high isoflavone content. Among 43 Korean major cultivated soybean samples, the total isoflavone contents were varied from $277.0{\mu}g/g\;to\;2,002.0{\mu}g/g$, and the average total isoflavone content was $1,017.3{\pm}390.0{\mu}g/g$. Total isoflavone content of Seokryangputkong $(2,002{\mu}g/g)$ was the highest among those of the other cultivated soybeans. On the other side, Hwangkeumkong $(277{\mu}g/g)$ contained lower isoflavone than other cultivars. The total isoflavone content of vegetable use or early maturity soybean cultivar $(1,438{\pm}493.7{\mu}g/g)$ showed more higher total isoflavone content than others. The daidzein, glycitein, genistein and total isoflavone contents of 648 soybean germplasms collected in Korea, were ranged $16.9{\sim}2,019.8{\mu}g/g,\;0{\sim}294.9{\mu}g/g,\;38.5\sim1,337.7{\mu}g/g,\;and\;82.6{\sim}3,479.2{\mu}g/g$, respectively, and total isoflavone content of IT 180001 line $(3,479.2{\mu}g/g)$ was the highest among those of other soybean germplasm lines.