Publications by authors named "Han-Na Chu"

This study investigated the anti-obesity effects of yuja pomace extract fermented with lactic acid bacteria in rats with high-fat diet-induced obesity over a period of eight weeks. Epididymal fat cell size was significantly smaller, by about 33%, in the treatment groups given yuja pomace extract fermented with lactic acid bacteria compared to the CON group. Electron microscopic observation of hepatocyte microstructure showed that the number of lipid droplets was lower in hepatocytes, the number of mitochondria was higher, along with distinct cristae, and the rough endoplasmic reticula were well developed with stacks of cisternae and ribosomes.

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Article Synopsis
  • - This study assessed 48 soybean resources from 2020 to compare their physiological activities and isoflavone compounds with those harvested in 2019, focusing on the effects of cultivation year and seed coat color.
  • - Results showed that soybeans from 2020 had heightened antioxidant activities (ABTS, DPPH) and reduced estrogen-related activities compared to 2019, with specific isoflavone compounds exhibiting differences due to year and seed color.
  • - The study identified genistein 7--(2″--apiosyl)glucoside (F5) as the key isoflavone impacting physiological activities, though genetic analysis revealed inconsistent results compared to the previous year's findings.
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The functionality of soybeans is an important factor in the selection and utilization of excellent soybean cultivars, and isoflavones are representative functional substances in soybeans, which exhibit effects on antioxidants, estrogen activity, and cancer, and prevent cardiovascular diseases. This study analyzed ABTS, DPPH, estrogen, ER (ER) alpha, UCP-1, and NO inhibition activities in 48 types of soybean cultivars, as well as the relationship with 19 isolated types of individual isoflavone derivatives. Statistical analysis was conducted to find individual isoflavone derivatives affecting physiological activities, revealing the high correlation of three types of derivatives: genistein 7-O-(6″-O-acetyl)glucoside (6″-O-acetylgenistin), genistein 7-O-(2″-O-apiosyl)glucoside, and glycitein.

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