A hot water extract was prepared from the artificially grown Gastrodia elata to investigate its chemical composition and various in vitro biological activities as an effort to develop G. elata as health/functional food materials. The contents of crude protein, ash, fat, fiber, moisture and total sugar were 5.4, 2.6, 3.6, 3.3, 8.1 and 77% (w/w), respectively. The extract of G. elata had greater amount of potassium (1,150 mg/100 g) than phosphorus (300 mg/100 g). Dose-dependence against human carcinoma (Hep3B, MCF-7, A549 and AGS) were observed from 0.2 mg/ml to 1.0 mg/ml. Especially, the treatment of 1.0 mg/ml extracts showed the highest cytotoxicity with 83% against gastric carcinoma (AGS). The extracts showed weak antimicrobial activities against Bacillus subtilis and Pseudomonas aeruginosa, but practically no antimicrobial activity against the other microorganisms tested. The effect of ${\alpha}$-glucosidase inhibition was 64% at the concentration of 1.0 mg/ml. The inhibitory effect of angiotensin converting enzyme (ACE) of the extract in the range of $0.2{\sim}1.0mg/ml$ showed $63{\sim}89%$, and the highest ACE inhibition was 89% at the concentration of 1.0 mg/ml of extracts. The highest activity of glutathion S-transferase (GST) was 221 % at the concentration of 1.0 mg/ml of the G. elata extracts. These results suggest that G. elata may be used as health/functional food materials.
An, Nan-Hee;Lee, Sang-min;Oh, Eun-mi;Lee, Cho-Rong;Gong, Min-Jae
Journal of the Korea Organic Resources Recycling Association
/
v.28
no.3
/
pp.27-36
/
2020
This study investigates the changes in inorganic composition and the microbial counts during the process of fermentation of mixed domestic organic resources for the development of alternatives for imported oil cake, and examines the characteristics of mixed fermentation organic fertilizer (MFOF). The effect of the MFOF on the lettuce growth is investigated in order to evaluate the possibility of replacing the existing mixed oil cake with the MFOF. Six kinds of domestic by-product resources, which are rice bran, distiller's dried grains, sesame meal, fish meal, and spent mushroom substrate, are mixed by mixing ratio and the composition was analyzed during the fermentation process for 90 days under moisture content 30% and sealed condition. During the 90 days of fermentation, the pH change of the MFOF was little, and the moisture content was maintained at 34-35% until the 60th day of fermentation, and then decreased to 30-31% on the 90th day. Total nitrogen content remained unchanged during the fermentation period, but total carbon content showed a significant difference on the 21st day of fermentation. It was confirmed that the content of fertilizer composition (nitrogen, phosphate, and potash) of the MFOF was 8.7% or more, which is suitable for the minimum amount standard of the main nutrients to be contained in the organic fertilizer. During the fermentation process of organic fertilizer, the density of bacteria and actinomycetes increased until 60 days and 30 days, respectively, and thereafter little changes were shown, and fungal population showed an increasing trend. As a result of lettuce cultivation test in the greenhouse by applying the MFOF, the growth and yield were comparable to that of using the existing mixed oil cake fertilizer when 100% was applied based on crop standard nitrogen fertilizer level. The use of mixed fermentation organic fertilizer made with domestic by-product resources can be used for use in farms in the future and is expected to contribute to the stable production of environment friendly agricultural products.
A study on field bioassay test using four species of commercially important shellfish was carried out to assess the effect of pollutants and determine the extent of marine environmental pollution of the Masan Bay from 9 to 15 August 1978. Water quality analysis and planktological examination of sea water were made during the experiment and the examination gave the following results. The water temperature was so high at 31.7$^{\circ}C$ in maximum and rather subject to change on weather condition of the land than on the effect of the water mass from outer bay. The range of DO,COD and SS at the stations were 0.3-7.08cc/l, 0.07-3.31ppm and 5.5-117ppm, respectively with the high values of COD and SS at the stations 7 and 1. The concentrations of the dissolved inorganic nitrogen in sea water, NH$\sub$4/-N, NO$\sub$2/-N, NO$\sub$3/-N, and PO$\sub$4/-P were 18.90-99.80, 2.48- 19.60, 13.00-39.00 and 1.04-14.0$\mu\textrm{g}$ at/l, respectively with decrease of their values in the outer part of the Bay. The high values mentioned above were caused by the sewage and industrial activities. The effects of organic waste are increased oxygen demand, nutrient concentration, turbidity and a higher input of pathogens, leading to structural changes in the marine ecosystems and to a considerable hazard to public health. The percentage composition of phytoplankton standing crop between diatom and dinoflagellate was characterized by making a difference between the two groups in respect of location: a decrease of diatom and a increase of dinoflagellate in numerical abundance toward inner part from outer part of the bay. Namely phytoplankton organisms were composed of 80% of diatom and 20% of dinoflagellate in outer bay, on the contrary, only 4% of diatom and 96% of dinoflagellate occupied by 94% of prorocentrum micans known as tolerant species to polluted reaas in the inner bay. On the occurrence and composition of zooplankton, there are two significant communities in the bay:one is characterized by the predominance of Oithona nana and the other by Favella sp They were composed of a range from 84% to 90% of the total organisms and monotonously constituted of themselves only at most inner station 3 even small numbers. From the results mentioned above, Oithona nana, Favella and prorocentrum micans recommed themselves as valuable indicators for judging the extent of the marine pollution.During the period of the biossays Mytilus edulis showed the highest mortality and Tapes japonica the lowest one between the four test species. The highest death rate by stations was found at most inner stations 3'and 4near Masan Free Export Zone with the most sensitive response and the lowest one occured at outer station 13 where no death specimen of oyster and arkshell was found during the whole test period.As for mussel,85 percent death rate appeared after 72 hours and 100percent rate after 120hours at station 4. It was found that the significant high mortality of the test shellfish mentioned above was caused by severe pollution with mainly organic pollutants from domestic sewage and industrial wastes from the results of too much higher concentrations of dissolved inorganic nitrogen especially ammonia-N,COD,SS and lack of dissolved oxygen,and furthermore occurrence and abundance composition of Prorcentrum,Favella and Oithona nana by stations, valuable indicator species of coastal pollution by orgnic and boilogical pollutants.
Kim, Hee-Jung;Kim, Hong-Ki;Kwon, Sang-Moon;Lee, Seok-Eon;Woo, Sun-Hee;Park, Man;Chung, Keun-Yook
Korean Journal of Soil Science and Fertilizer
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v.43
no.3
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pp.322-328
/
2010
This study was initiated to investigate the physical and chemical properties of the clay mineral illite and its effect on the growth of cherry tomato (Hongjak) as affected by the forms and concentrations of illite using the bed soil in the glass house. The composition of illite was analyzed by SEM(scanning electron microscope). The cherry tomato was cultivated in the bed soil in the glass house at Chungbuk National University for 10 weeks of total duration. The application rates of illite used as particulate and powder forms were standard 1:20 (w/w), two times 1:10 (w/w), four times 1:5 (w/w) of standard application, respectively. The surface of illite used in the study appeared to be hexagonal sheet and it included K and the variety of other elements. The growth lengths of cherry tomato were 11-23% greater in the pots treated than in the untreated pots. Based on the analyses of the major cations, K, Ca, and Mg from the cherry tomato the amounts of K taken in the leaf and stem of the cherry tomato were 8-45% and 3-30% greater than untreated pots, respectively. The amount of Ca in the leaf and stem taken up by the cherry tomato were 6-39% and 11-40% greater than untreated pots, respectively. The amounts of Mg in the leaf and stem taken up by the cherry tomato were 17-62% and 19-54% greater than untreated pots, respectively. Based on the analysis for the amount of cations, such as K, Ca, and Mg taken up by cherry tomato in treated and untreated bed soil, it appears that the illite treatment enhanced the early growth of cherry tomato.
Choi, Hong Jib;Kweon, Il Chan;Kim, Jae Hyun;Kim, Dal Ung
Current Research on Agriculture and Life Sciences
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v.11
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pp.71-79
/
1993
This study was conducted to obtain the basic information for the classification of Perilla spp. based on their major morphological characteristics for the 20 local collections of perilla distributed in Korea. The results of this experiment were summarized as follows : Several morphological characteristics were investigated. Seed color was classified to four groups with greshywhite, greshybrown, brown and darkbrown. The 1,000 grain weight, 11 accessions were below 3.5g, four accessions was 3.6g to 4.5g and five accessions was 4.5g to 5.07g. There was two types of stem color, red and green, 15 accessions was green and 5 accessions including Andongjaerae, Yeupsil, Ockdong, Cheongsongjaerae and Chugjaso were red color. In fatty acid composition was 60% in average. Among 20 accessions, Euseongjaerae showed the highest content(65%) and Yeongyangjaerae the lowest(54%) linolenic acid content. In the cytogenetical studies on the four accessions including Andong, Yeupsil, Yeongkwang and Daeyeong, the number of chromosomes were 2n=38.
Kim, Min-Kyeong;Hong, Seong-Chang;Lee, Jong-Sik;Jung, Goo-Buk;Kwon, Soon-Ik;Chae, Mi-Jin;Yun, Sun-Gang;So, Kyu-Ho
Korean Journal of Soil Science and Fertilizer
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v.46
no.5
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pp.386-390
/
2013
Recently, special attention has been given to acid rain and its problem to environment such as acid precipitation and air pollution in East Asia. In the present study, rainwater samples were collected from Apr to Nov in 2012. The samples were chemically characterized for the assessment of emission sources. Suwon and Yeoju regions, typical agricultural areas in South Korea, were chosen for study sites. Ion composition and cation-affected neutralization were determined to evaluate the contribution of cations to the acidity of rainwater. Ion and electrical conductivity between the measured and the estimated showed high correlation. The cations observed in Suwon and Yeoju were $Na^+$ > $NH_4{^+}$ > $K^+$ > $Ca^{2+}$ > $Mg^{2+}$ > $H^+$ and $Na^+$ > $K^+$ > $NH_4{^+}$ > $Ca^{2+}$ > $Mg^{2+}=H^+$, respectively. The anions of all sites were $SO{_4}^{2-}$ > $NO_3{^-}$ > $Cl^-$. While the amounts of sulfate, one of the major dissolved components of rainwater, were 77.6 and 75.6 ueq $L^{-1}$ in Suwon and Yeoju, the ones of NSS-$SO{_4}^{2-}$ (Non-Sea Salt sulfate) were 83 and 82% in Suwon and Yeoju, respectively. The comparison of observed pH values ($pH_{obs}$) with the theoretical pH values ($pH_{the}$) showed that the neutralization of rain water considerably went along during the study periods. The highest amounts of rainfall throughout the year in Suwon and Yeoju were 572.3 and 484.6 mm in July, and its corresponding nitrogen loadings in Suwon and Yeoju were 5.28 and 3.50 kg $ha^{-1}$, respectively. The major ion contents for crop growth with $SO{_4}^{2-}$, $Ca^{2+}$, $K^+$ and $Mg^{2+}$ were 51.7, 5.2, 11.8 and 1.8 kg $ha^{-1}$ in Suwon and 34.2, 4.0, 4.2 and 1.1 kg $ha^{-1}$ in Yeoju.
Journal of the Korean Society of Food Science and Nutrition
/
v.39
no.5
/
pp.719-724
/
2010
This study investigated the physicochemical characteristics and antioxidant activities of Daehak waxy corns harvested at different times. Daehak waxy corns were harvested at 4 days before suitable time (BST), suitable time (ST) and 4 days after suitable time (AST). As harvest time was delayed, weight, length and width of kernel, the crude ash, lipid and protein contents significantly increased. Fructose, glucose and sucrose contents of BST were higher than those of ST and AST. Copper, sodium, calcium and potassium contents of BST in Daehak waxy corns increased on different times, and contents of ferrous and zinc did not show any significantly difference. The major fatty acids were oleic acid (48.58~49.96%), palmitic acid (19.50~20.64%) and palmitoleic acid (18.70~23.77%) in Daehak waxy corns with different harvest times. The highest total polyphenol content and total antioxidant capacity of EtOH extracts from AST were 104.45 mg/100 g and 20.53 mg AA eq/100 g, respectively. There was a high correlation between total polyphenol content and $IC_{50}$ value of electron donating ability of EtOH extracts from Daehak waxy corns harvested at different times, or total antioxidant capacity (p<0.01).
Journal of The Korean Society of Grassland and Forage Science
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v.13
no.2
/
pp.86-92
/
1993
The variation of the esterase isozyme, germination rate, chemical composition and digestibility of field bean(G1ycine soja S. and Z.) were estimated. The results are as follows; 1. The banding patterns of the esterase isozyme in field bean were varied with the tissue and habitat. 2. The enzyme activity of the Est-I, Est-2, Est-3 and Est-4 in field bean showed a high value compared with the other enzyme. 3. The range of germination temperature in field bean was 10-40C and the optimum germination temperature was 25- 38^{\circ}C.$. 4. The crude protein(CP) contents was 19.9% in the whole plant, 27.8% in the leaf and 45.9% in the seed, the cellulose contents was 29.5% in the whole plant, 23.0% in the leaf and 13.8% in the seed, the neutral detergent fiber(NDF) was 62.6% in the whole plant, 47.9% in the leaf and 47.9% in the seed and the acid detergent fiber(ADF) was 44.5% in the whole plant, 28.4% in the leaf and 28.4% in the seed, respectively. 5. The digestibility of the field bean was 44.1% in the whole plant, 49.6% in the leaf and 75.1% in the seed, NDF was 26.2% in the whole plant 46.2% in the leaf, ADF was 29.0% in the whole plant, 47.7% in the leaf and 58.0% in the seed and Cellulose was 48.7% in the whole plant, 58.0% in the leaf and 70.2% in the seed, respectively. 6. Total digestible nutrients(TDN) of the field bean was 47.4% in the whole plant, 51.5% in the leaf and 70.2% in the seed, respectively. The digestible energy(DE) value was 2.1 kcal/g in the whole plant, 2.27 kcal/g in the leaf and 3.10 kcal/g in the seed and the metabolizable energy(ME) value was 1.72 kcal/g in the whole plant, 1.86 kcal/g in the leaf and 3.23 kcal/g in the seed, respectively.
Journal of The Korean Society of Grassland and Forage Science
/
v.9
no.2
/
pp.82-87
/
1989
A field experiment was carried out to determine the effects of 11 different application levels of nitrogen (N), phosphorous ($P_2O_5$) and potassium($K_2O$) fertilizer in late-autumn on the winter survival, early spring growth and dry matter(DM) yield, carbohydrate reserves (CHO-R) in stubble of grasses, and botanical composition in orchardgrass dominated existing pasture in Suwon from October, 1987 to May, 1988. Winter survival of grasses was high (ca. 90%) in all N-fertilized plots, regardless of $P_2O_5$ and $K_2O$ application, and those in zero-N and zero-NPK plots were low as 86.5% and 81.4%, respectively. Early spring growth was vigorous in N-fertilized plots. Heading rate at the fist harvest was 80-86% in all N plots, regardless of $P_2O_5$ and $K_2O$, while those in zero-N and zero-NPK plots were very low as 61% and 56%, respectively. The DM yield of first harvest was higher in the plots of N 35 kg(Site B) and N 70kg $ha^{-1}$ (Site A), regardless of $P_2O_5$ and $K_2O$ level, and those in zero-N and zero-NPK plots were very low (p < 0.05). But no significant difference of yield was observed between N 75 kg and N 105 kg. CHO-R in stubble and legumes were high in zero-N and zero-NPK plots, and low relationship was found between winter survival and CHO-R of grasses. Winter survival, early spring growth and DM yield were significantly influenced by N fertilizer. In this experiment, the optimum application level of N in late-autumn could be recommended in 35-70 kg $ha^{-1}$, and no beneficial effects were observed by $P_2O_5$ and $K_2O$ fertilizer.
Journal of the Korean Society of Food Science and Nutrition
/
v.39
no.9
/
pp.1313-1319
/
2010
Rice cultivars of Goami2 (G2), Baegjinju (BJJ), and Sulgaeng (SG) with different amylose contents were developed by mutation breeding via N-methyl-N-nitrosourea (MNU) treatment to Ilpumbyeo (IP), high japonica rice. They were identified by different appearances such as grain size, color, and shape. In this experiment, the compositional and physical qualities of those cultivars were examined. The G2 rice classified as a high-amylose rice cultivar was significantly higher in its non-digestable carbohydrates contents. Linoleic and oleic acid were composed of 70~75% of all fatty acids composition regardless of milled and brown rice, except G2 rice in which palmitic acid was the major fatty acid followed by linoleic acid and oleic acid in order. Major amino acids were aspartic acid, glutamic acid, and hydroxy lysine. It was found that cysteine contents were higher in the cultivars of endosperm mutant rice. The DSC analysis revealed that enthalpy was the highest in BJJ followed by SG, IP, and G2 rice. The lowest enthalpy of G2 might be attributable to the higher amylose content. Ilpumbyeo in its cooked rice form showed the highest in Toyo value and less in hardness, but G2 was vise versa. Results of gelatinization and cooked rice properties suggest that G2 was less suitable for cooked rice, but has a potential for functional ingredients from nutritional point of view. The BJJ and SG could be used for traditional cooking as well as for processed foods.
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