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Light Quality Effects on the Growth, Phytochemicals and Ion Contents of Red Beet (Beta vulgaris L.)
Changmin Oh,Jai-Eok Park,Yang-Ju Son,Nam-Il Park,Chu Won Nho,Gyhye Yoo 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
Red beet (Beta vulgaris L.), one of the plants of the Chenopodiaceae family, consumed and cultivated all of the world. It contains a plenty of inorganic nitrates and a variety of secondary metabolites including betalains, flavonoids, and polyphenols, which known to improve human health. Because most red beets are cultivated in open field, the concentration of their ingredients are affected by their surrounding environments (drought, cold, pests etc.). A Vertical Farm (VF), an indoor facility to raise plants in multiple layers with artificial environment, provides constant and planned environment to plants, leading to supplementation of stable plants with high concentrated components. In the present study, we investigated the effect of light quality on red beets and its components in a vertical farm. The light used in the experiment was Control (CON, Red:Blue-White = 2:1), RED (RED, Red:Blue-White = 4:1) and Blue-White (BW, Red:Blue-White = 2: 3) was set. At the 13 Weeks after sowing (WAS), RED treated shoots significantly elevated Total phenolic contents (TPC) compared to other treatments and antioxidative property was increased 3 times higher in shoots of RED treated than in shoots of CON treated at 13WAS. The fructose and glucose content of shoot and root increased significantly in RED treated beets than in CON treated one, while the sucrose content in the roots was decreased by RED or BW treatment at the 12 WAS and 13 WAS. RED treated roots had significantly higher betanin level at the 13 WAS compared to CON treated one. Vulgaxanthin-1 content of shoots was increased in plants subjected to RED treatment but decreased in plants influenced to BW treatment compared to CON treatment, respectively. Inorganic nitrates and Chloride was increased by BW treatment not RED compared to CON. In conclusion, light quality alters the concentration of beet components and RED light elevated TPC, sugars and betalains. Therefore, the elevation of RED light when growing red beets could be a way to produce improved red beets for human health.
Hirschsprung병 환자의 Duhamel 수술 후 장염으로 인한 사망
박윤준(Youn Joon Park),김성민(Seong Min Kim),김재억(Jai Eok Kim),황의호(Eui Ho Hwang),한석주(Seok Joo Han) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.75 No.3
Hirschsprung’s disease is a common functional obstructive disease in infants, and a lot of knowledge and experience have been accumulated about this disease. But the exact genesis of Hirschsprung’s disease is still unknown, as well as there is a lack of knowledge about the pre- or postoperative complications. Enterocolitis is a common and serious complication that can cause death. The authors experienced sudden death with three cases that were treated with Duhamel’s operation under the confirmed diagnosis of the Hirschsprung’s disease. To prevent such sudden and unexpected death, we report here on some of the medical procedure that we performed for these 3 patients.
Sung Jin Kim,Jai Eok Park,Gwon Jeong Bok,Bashistha Kumar Kanth,Vu Phong Lam,Jong-SeokPARK 한국원예학회 2018 원예과학기술지 Vol.36 No.6
Agastache rugosa Kuntze, a perennial herb in the Labiatae family, is ubiquitous in Korean fieldsand is used as a wild vegetable and medicinal herb for traditional therapies. We measured theconcentrations of tilianin and acacetin, in hydroponically grown A. rugosa plants cultured innutrient solutions of various electrical conductivities (ECs) for four weeks and sprayed or not withdifferent concentrations of methyl jasmonate (MeJA). The total acacetin content of A. rugosashoots ranged from 41.17 mg/plant at 1.0 dS·m-1 to 50.00 mg/plant at 4.0 dS·m-1, but did not differsignificantly between treatments. Tilianin accumulation in A. rugosa at 2.0 and 4.0 dS·m-1 was 9.66and 8.64 mg/plant, respectively, values significantly greater than those observed at 1.0 dS·m-1. Thecombined effect of MeJA application and the EC of the nutrient solution influenced the productionof both tilianin and acacetin in appreciable amounts. The highest observed levels of tilianin were2.75 mg·g-1 at 4.0 dS·m-1, 2.49 mg·g-1 at 2.0 dS·m-1, and 1.62 mg·g-1 at 1.0 dS·m-1 after applicationof 20 μM MeJA. Similarly, the highest observed levels of acacetin were 33.81 mg·g-1 at 4.0 dS·m-1and 20.85 mg·g-1 at 2.0 dS·m-1 after application of 10 μM MeJA. We also evaluated the growthparameters of these plants. All growth parameters were affected by the EC of the nutrient solution. The greatest leaf length and width and the longest petiole, internode, and stem measurements wereobserved at 2.0 dS·m-1, but these values were lower at 4.0 dS·m-1. All root parameters increased withincreasing EC, peaking at 4.0 dS·m-1. Our results suggest that high EC nutrient solution togetherwith MeJA application provides optimum conditions for plant growth and accumulation of tilianinand acacetin in hydroponically grown A. rugosa.