• Title/Summary/Keyword: 도정

Search Result 791, Processing Time 0.028 seconds

Content of Rutin and Monacolin K in the Red Buckwheat Fermented with Monascus ruber (홍국균 발효 메밀에서의 rutin과 monacolin K의 함량 변화)

  • Kang, Dong-Zhou;Um, Joo-Bang;Lee, Song-Koo;Lee, Jong-Hoon
    • Korean Journal of Food Science and Technology
    • /
    • v.35 no.2
    • /
    • pp.242-245
    • /
    • 2003

  • Buckwheat contains dietary rutin, a flavonol glycoside, which is able to antagonize hypertension in human and has antioxidant activity. Monacolin K, a secondary metabolite produced by fungi Monascus species, is an effective specific inhibitor of cholesterol biosynthesis. To develop functional health food, dehulled buckwheat was fermented with Manascus ruber to produce Anka, and contents of rutin and monacolin K and Anka were determined. The rutin content in dehulled buckwheat decreased slightly after germination, but increased with the growth of sprout. Growth of fungi had no influence on rutin content in dehulled buckwheat Anka, Monacolin K content in fermented dehulled buckwheat malt was lower than that in dehulled buckwheat Anka. Monacolin K content in dehulled buckwheat Anka decreased with increasing length of sprout in fermented dehulled buckwheat malt, probably due to consumption of nutrients, such as polysaccharides as carbon sources, during sprouting for growth of M. ruber.

  • PDF KSCI

Effect of Milling on Reduction of Fusarium Mycotoxins in Barley (보리 도정이 Fusarium 곰팡이독소 저감에 미치는 효과)

  • Seul Gi Baek;Mi-Jeong Lee;Ju-Young Nah;Soo Bin Yim;Jung-Hye Choi;Jang Nam Choi;Ja Yeong Jang;Jung-Wook Yang;Theresa Lee
    • Research in Plant Disease
    • /
    • v.29 no.4
    • /
    • pp.384-389
    • /
    • 2023

  • Milling can affect the distribution of mycotoxins in small grains. To investigate the effects on barley, seven hulled barley and three naked barley samples naturally contaminated with trichothecenes and zearalenone were obtained and milled at commonly used rates. Both barleys were simultaneously contaminated with deoxynivalenol and its acetyl derivatives (98.1-2,197.8 ㎍/kg), nivalenol and its acetyl derivative (468.5-3,965.1 ㎍/kg), and zearalenone (4.1-274.2 ㎍/kg). Milling hulled barleys at a rate of 67% reduced the mycotoxins in the grain by 90.9% for deoxynivalenol, 87.7% for nivalenol, and 93.2% for zearalenone. The reduction in naked barleys (milled at a rate of 70%) was slightly lower than in hulled barleys, with 88.6% for deoxynivalenol, 80.2% for nivalenol, and 70.1% for zearalenone. In both barleys, the acetyl derivatives of deoxynivalenol and nivalenol were reduced by 100%. However, barley bran had significantly higher mycotoxin concentrations than the pre-milled grains: bran from hulled barley had a 357% increase in deoxynivalenol, 252% increase in nivalenol, and 169% increase in zearalenone. Similarly, bran from naked barley had a 337% increase in deoxynivalenol, 239% increase in nivalenol, and 554% increase in zearalenone. These results show that mycotoxins present in the outer layers of barley grain can be effectively removed through the milling process. As milling redistributes mycotoxins from the grain into the bran, however, it shows that advance monitoring of barley bran is recommended when using barley bran for human or animal consumption.

  • https://doi.org/10.5423/RPD.2023.29.4.384 인용 PDF

Measurement Error Model with Skewed Normal Distribution (왜도정규분포 기반의 측정오차모형)

  • Heo, Tae-Young;Choi, Jungsoon;Park, Man Sik
    • The Korean Journal of Applied Statistics
    • /
    • v.26 no.6
    • /
    • pp.953-958
    • /
    • 2013

  • This study suggests a measurement error model based on skewed normal distribution instead of normal distribution to identify slope parameter properties in a simple liner regression model. We prove that the slope parameter in a simple linear regression model is underestimated.

  • https://doi.org/10.5351/KJAS.2013.26.6.953 인용 PDF KSCI