Kim Se-Kwon;Jeon You-Jin;Kim Won-Suk;Back Ho-Cheol;Park Pyo-Jam;Byun Hee-Guk;Bai Sungchul C.
Fisheries and Aquatic Sciences
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v.4
no.2
/
pp.75-83
/
2001
This study is to investigate biochemical compositions of two species of marine microalgae, Chlorella ellipsoidea of Chlorophyta and Tetraselmis suecica of Prasinophyta, and to assess their potential antimicrobial activities. Crude protein, lipid and carbohydrate for C. ellipsoidea were $43.15\%$, $12.63\%$ and $13.09\%$, respectively, and those for T. suecica were $44.95\%$, $4.80\%$ and $24.05\%$, respectively. The major amino acids of the two micro algae were aspartic acid, glutamic acid, glycine, alanine, valine, leucine, lysine and proline, and no significant difference between the amino acid compositions of both micro algae was observed. The major sugars for both microalgae were glucose, galactose and mannose, and glucose contents showed the highest level, $58.70\%$ for C. ellipsoidea and$57.86\%$ for T. suecica. The major mineral contents of both micro algae for 100g were Ca (3,114mg in C. ellipoidea and 3,389mg in T. suecica) and followed by Na (2,881mg), K (548mg) and Mg (545mg) for C. ellipsoidea and Na (1,832 mg), Mg (1,510mg) and K (548mg) for T. suecica. In the content of ATP-related compound, hypoxanthine in C. ellipsoidea and IMP in T. suecica were absolutely dominant compounds. The highest content of fatty acid in C. ellipsoidea was 20:4, $27.15\%$ and that in T. suecica was 18:3 (w-6), $18.10\%$. In case of physiologically important polyunsaturated fatty acids like eicosapentaenoic acid (20: 5) and docosahexaenoic acid (22: 6), both microalgae possessed just trace amounts but was rich in arachidonic acid (20: 4). Vitamin content in both microalgae was significantly high in choline and inositol. In antimicrobial activity by water- and fat-soluble fraction of the micro algae, hexane extract in the fat-soluble fraction of C. elliposidea inhibited the growth of Bacillus subtilis by $96\%$ bactericidal activity and tetrachlorocarbon extract of T. suecica indicated relatively excellent antimicrobial activity $(81\%\;bactericidal\;activity)$ against Escherichia coli. Hot water extract among water-soluble fraction of both micro algae almost suppressed the growth of Staphylococcus aureus by $96\%$ bactericidal activity.
Objective: Hypocalcemia is an important metabolic disease of dairy cows during the transition period, although the effect of hypocalcemia on biological function in dairy cows remains unknown. Methods: In this study, proteomic, mass spectrum, bioinformatics and western blotting were employed to identify differentially expressed proteins related to serum Ca concentration. Serum samples from dairy cows were collected at three time points: 3rd days before calving (day -3), the day of calving (day 0), and 3rd days after calving (day +3). According to the Ca concentration on day 0, a total of 27 dairy cows were assigned to one of three groups (clinical, subclinical, and healthy). Samples collected on day -3 were used for discovery of differentially expressed proteins, which were separated and identified via proteomic analysis and mass spectrometry. Bioinformatics analysis was performed to determine the function of the identified proteins (gene ontology and pathway analysis). The differentially expressed proteins were verified by western blot analysis. Results: There were 57 differential spots separated and eight different proteins were identified. Vitamin D-binding protein precursor (group-specific component, GC), alpha-2-macroglobulin (A2M) protein, and apolipoprotein A-IV were related to hypocalcemia by bioinformatics analysis. Due to its specific expression (up-regulated in clinical hypocalcemia and down-regulated in subclinical hypocalcemia), A2M was selected for validation. The results were consistent with those of proteomic analysis. Conclusion: A2M was as an early detection index for distinguishing clinical and subclinical hypocalcemia. The possible pathogenesis of clinical hypocalcemia caused by GC and apolipoprotein A-IV was speculated. The down-regulated expression of GC was a probable cause of the decrease in calcium concentration.
Park, Seung Ju;Beak, Seok-Hyeon;Jung, Da Jin Sol;Kim, Sang Yeob;Jeong, In Hyuk;Piao, Min Yu;Kang, Hyeok Joong;Fassah, Dilla Mareistia;Na, Sang Weon;Yoo, Seon Pil;Baik, Myunggi
Asian-Australasian Journal of Animal Sciences
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v.31
no.7
/
pp.1043-1061
/
2018
Intramuscular fat (IMF) content in skeletal muscle including the longissimus dorsi muscle (LM), also known as marbling fat, is one of the most important factors determining beef quality in several countries including Korea, Japan, Australia, and the United States. Genetics and breed, management, and nutrition affect IMF deposition. Japanese Black cattle breed has the highest IMF content in the world, and Korean cattle (also called Hanwoo) the second highest. Here, we review results of research on genetic factors (breed and sex differences and heritability) that affect IMF deposition. Cattle management factors are also important for IMF deposition. Castration of bulls increases IMF deposition in most cattle breeds. The effects of several management factors, including weaning age, castration, slaughter weight and age, and environmental conditions on IMF deposition are also reviewed. Nutritional factors, including fat metabolism, digestion and absorption of feed, glucose/starch availability, and vitamin A, D, and C levels are important for IMF deposition. Manipulating IMF deposition through developmental programming via metabolic imprinting is a recently proposed nutritional method to change potential IMF deposition during the fetal and neonatal periods in rodents and domestic animals. Application of fetal nutritional programming to increase IMF deposition of progeny in later life is reviewed. The coordination of several factors affects IMF deposition. Thus, a combination of several strategies may be needed to manipulate IMF deposition, depending on the consumer's beef preference. In particular, stage-specific feeding programs with concentrate-based diets developed by Japan and Korea are described in this article.
Growth and development of Limonium spp.‘Ocean Blue’plantlets were studied under three levels of photosynthetic photon flux (PPF),70,150 and 220 $\mu$mol. $m^{-2}$ . $s^{-1}$ , two levels of $CO_2$ concentration, 500 and 1000 $\mu$mol. $m^{-1}$ , and two levels of number of air exchanges per hour (NAEH),0.1 $h^{-1}$ and 2.8 $h^{-l}$. Explants were obtained from photomixotrophically-micropropagated plantlets. Four explants per vessel were cultured under cool-white fluorescent lamps for 16 h. $d^{-1}$ at 25$\pm$11$^{\circ}C$ and 70~80% relative humidity. In treatments of 2.8 $h^{-1}$ NAEH, a 10 mm round hole made on the vessel cap was sealed with a microporous filter and two $CO_2$ concentrations in the culture rooms were provided from a liquefied $CO_2$ tank. Fresh and dry weights, height, length of the longest root, number of loaves, and leaf area significantly increased with increasing PPF and especially, $CO_2$ concentration. Growth was enhanced by a 2.8 $h^{-1}$ NAEH. Overall, treatment with a 220 $\mu$mol. $m^{-2}$ . $s^{-1}$ PPF and a 1000 $\mu$mol. $m^{-1}$$CO_2$ resulted in the most vigorous growth of Limonium spp. ‘Ocean Blue’ plantlets.s.
Piscicidal substance produced by Streptomyces sp. isolated from soil was toxic against various kinds of fish. After extraction with CH$Cl_3$ from the culture medium, the substance was purified by avicel column chromatography. In order to test toxicity, various kinds of fish were subjected to the acqueous solution of 100 us of the substance per liter of water. Generally, the substance was toxic to most fish, but Macropodus chinenes and Misgurnus mizolepis are resistant to the substance than Gobius similis and Pseudorasbora parva. The substance was stable at pH range, 3.0 to 7.0, but labile at alkaline pH, and to heat as well. Succinic dehydrogenase on most of tissue cell of Cyprinus carpio was inhibited by this substance strongly, but spinal cord was not inhibited. By addition of Cu and Pb salts to the culture medium, piscicidal substance producibility was activated.
Twenty eight 3-4 month old castrated Black Bengal kids (Capra hircus) were used to determine the effects of source and level of dietary copper (Cu) concentration on their performance and nutrient utilization. Cu was supplemented (0, 10, 20 and 30 mg/kg diet DM) as copper sulfate ($CuSO_4$, $5H_2O$) or copper proteinate (Cu-P). Kids were fed a basal diet containing maize (19.5%), soybean (17.0%), deoiled rice bran (56.5%), molasses (4.0%), di-calcium phosphate and salt (1.0% each) and mineral and vitamin mixture (0.5% each) supplements at 3.5% of body weight to meet NRC (1981) requirements for protein, energy, macro minerals and micro minerals, excluding Cu. The basal diet contained 5.7 mg Cu/kg, 122.5 mg Fe/kg, 110 mg Zn/kg, 0.26 mg Mo/kg and 0.32% S. $CuSO_4$ or Cu-P was added to the basal diet at the rate of 10, 20 and 30 mg/kg. Kids were housed in a well ventilated shed with facilities for individual feeding in aluminum plated metabolic cages. Blood samples were collected from the jugular vein on d 0, 30, 60 and 90 to determine hemoglobin (Hb), packed cell volume (PCV), total erythrocyte count (TEC), total leukocyte count (TLC) and serum enzymes (alkaline phosphatase, alanine transferase and aspertate transferase). A metabolism trial of 6 days duration was conducted after 90 days of experimental feeding. Statistical analysis revealed that source and level of Cu supplementation improved live weight gain (p<0.04) and average daily gain (p<0.01). No significant contribution of source and level of Cu to alter serum serum enzymes was evident. Goats fed Cu-P tended to have higher Hb, PCV and TEC than with $CuSO_4$ supplementation. Cu-P increased digestibility of ether extract (EE, p<0.02) and crude fiber (p<0.05) and showed an increasing trend (p<0.09) for digested crude protein (CP) and crude fiber (CF). Supplemental dose of Cu linearly improved (p<0.02) digestibilities of dry matter (DM), organic matter (OM), EE and nitrogen free extract (NFE). Though the absorption of nitrogen (N) was not affected (p>0.10) by both source and dose of Cu, N retention was affected (p<0.04) and there was a significant $Source{\times}Dose$ interaction (p<0.05). Final body weight (BW) was not influenced (p>0.10) by the source of Cu but increasing dose of Cu increased (p<0.04) the BW of kids. TDN intake (g/kg $W^{0.75}$) was higher (p<0.05) with the increased dose of Cu and there was a significant $Source{\times}Dose$ interaction. It was concluded that supplementation of Cu from different sources and varying dose level in a concentrate based diet may improve performance, nutrient utilization and plane of nutrition in castrated Black Bengal kids. The effects on performance and nutrient utilization are more pronounced with Cu-P than $CuSO_4$ supplementation. Higher dose of Cu showed better result than lower dose.
Ha, Soon-Yong;Kim, Sang-Bo;Shin, Hyun-Soung;Ha, Chong-Chol
Journal of Nutrition and Health
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v.11
no.4
/
pp.11-23
/
1978
This study is based on data from the nutritional and clinical survey in Chung Nam area, namely Myl-Yang-Ri, Yoon-Gok-Myon, Chyung Yang Koon. Under the direction of two Nutrition professors and two clinical pathology professors it was carried by 35 Dae Jeun medical Junior College students majoring in nutrition and clinical pathology from 18 July to 25 July 1978. The nutrition surveys were carried out with subjects in village from a total 67 households, 36 of them were randomly selected. The clinical surveys were carried out with subjects in village from a total 382 inhabitant, 154 inhabitant were randomly selected and 109 peoples were subjected to stool examination. The results obtained in this study are summarized as follows. 1) Nutritional survey a) Food Intake The average food intake per person per day in survey area was 929.9 grams (95.5% in vegetables and 4.5% in animal foods). The average consumption of the basicfood groups per person per day was 965g for meats and legumes (10.4% of the total food in take). 268.9g for fruits and vegetables (29% of the total food intake), 559.1g for cereals and potatoes(60.1% of the total food intake), 5.2g for milk and small fishes and 0.2g for fats and oils. b) Nutrient Intake The average daily consumption of calories and nutrients was 2054.1 kcal and 61.2g for total proteins, 223.2mg for calcium, 9.5mg for iron, 4914.4 IU for vitamin A, 1.5mg for thiamin, 1.2mg for riboflavin, 19.9mg for niacin and 54.7mg for ascorbic acid. When these figures are compared with the recommended allowances for Korean, the calories and nutrients intakes were insufficient. Especially the intakes of the calcium were lower than the recommended allowance which are 500 milligrams per day. c) Kinds of food stuffs consumed The kinds of food stuffs consumed by the subjects were 47 figures total. Generally these kinds of food were vegetables food. 2) Clinical Survey a) The mean value of hemoglobin from 72 males was 13.2g/dl, that of 82 females was 12.3g/dl. b) The proportion of low hemoglobin (<12.2g/dl for male and <11.3g/dl fo female) for male was 20.8%, females was 11.0% and from 24 male & female (both sexes) were 15.6% c) The mean value of Hematocrit of males was 39.6%, that of females was 37.4%. d) The mean value of MCHC of males was 33.9%, that of females was 33.6%. e) The ABO blood group was distributed as following; 30.5%, for group O, 29.2% for group A, 24.0% for group B, and 16.3% for AB group. Biochemical race index was 1.13. f) The over all prevalence rate of heminthic infectious by rate of each helminth was as following; Ascaris lumbricoides 33.9%, Thrichocephalus trichiurus 11.9%, Hookworm 0.9%, Hymenolepis diminuta 0.9%, Trichostromgylus orientalis 0.9% and the prevalence rate of two more helminthic infection was 7.2%.
Hong, Jong-Hwan;Han, Moon-Soo;Lee, Seul-Kee;Lee, Jung-Kil;Moon, Bong Ju
Journal of Korean Neurosurgical Society
/
v.63
no.5
/
pp.623-630
/
2020
Objective : A primary degenerative sagittal imbalance has been considered because of unique lifestyles such as the prolonged crouched posture during agricultural work and performing activities of daily living on the floor. Previous papers have reported that sagittal imbalance disease is often seen distinctly in the farming districts of "oriental" countries such as Korea and Japan. However, this finding was only evaluated with the use of X-ray, and other factors such as magnetic resonance imaging (MRI), muscle volume, compression fracture, and laboratory results were not considered. Thus, using these, we evaluate the agricultural work-associated factors for Korean elderly spinal sagittal imbalance. Methods : We recruited 103 Korean participants who had a sagittal vertical axis (SVA) of >5 cm in this Korean Elderly Sagittal Imbalance Cohort Study. The following were evaluated : radiological parameters, MRI, compression fracture, vitamin D, parathyroid hormone, C-terminal telopeptide, osteocalcin, bone mineral density and muscle fatty change, muscle volume, and health-related quality of life from patients' survey. Moreover, in this survey, the farmers' annual working hours were investigated. Subsequently, we analyzed the associated factors for spinal sagittal imbalance depending on occupation. Results : A total of 46 participants were farmers, and the others were housewives, sellers, and office workers. The farmer group had more SVA (141 vs. 99 mm, p=0.001) and pelvic tilt (31° vs. 24°, p=0.004) and lesser lumbar lordosis (20° vs. 30°, p=0.009) and thoracic kyphosis (24° vs. 33°, p=0.03) than non-farmer group. A significantly positive correlation was noted between the working hour and SVA in the farmer group (p=0.014). The visual analogue scale score for back pain (8.26 vs. 6.96, p=0.008) and Oswestry Disability Index (23.5 vs. 19.1, p=0.003) in the farmer group were higher than that in the non-farmer group, but the Short Form-36 score was not significantly different between the two groups. The Mini-Mental State Exam score was significantly lower in the farmer group than in the non-farmer group (24.85 vs. 26.98, p=0.002). Conclusion : The farmer group had more sagittal imbalance and back pain in proportion to the working hours even though the muscle and bone factors and general laboratory condition were not significantly different between the two groups. These results supported that the long hours spent in the crouched posture while performing agricultural work were a risk factor for severe sagittal imbalance.
Journal of the Korean Society of Food Science and Nutrition
/
v.38
no.12
/
pp.1815-1819
/
2009
Based on the soft and rigid extents, tissues are mainly divided into two groups in mammals, soft tissues including heart, lung, kidney and brain, and hard tissues including tendon, cartilage, teeth and bone. Among various tissues, bone, a dynamic rigid organ, is continuously remodeled by the opposing functional activity between bone formation by osteoblasts and bone destruction by osteoclasts. Bone protects the soft tissues and provides mineral reservoirs, which can supply the mineral needs of other soft tissues to normally maintain cellular function. While calcification in bone is an important action to fundamentally support the body and protect the soft tissues, calcification in soft tissues, including the heart, aorta, kidney, lung and spleen, results in severe organ damages, eventually causing sudden death. A growing body of evidence indicates that the osteoporotic patient who are aging, post-menopausal, diabetes and chronic kidney disease simultaneously represent a high clinical incidence of soft tissue calcification, illustrating a link between soft tissue calcification and bone decalcification (osteoporosis). This study will review what is currently known about the connection between bone decalcification and soft tissue calcification.
Changes of component(amino acid, free sugar, fatty acid and mineral) and antioxidant effect by pickling of soybeans we.e investigated. Soybean cultivars, Daewon, Pungsannamul, Hwaeum(yellow bean), Ilpum Black and Zynuni(black bean) were soaked in persimmon vinegar for 10 days at $20^{\circ}C$. The major amino acids of raw soybeans were glutamic acid, aspartic acid, lysine and leucine. The content of total amino acid decreased by pickling. The major free sugar of raw soybeans were glucose, fructose and sucrose. Sucrose decreased and glucose and fructose increased by pickling. Maltose was found only in pickled Daewon and Ilpum Black. Linoleic and linolenic acid content of raw soybeans were $49.3%{\sim}57.1%\;and\;7.8{\sim}8.9%$, and the fatty acid contents did not change by pickling. The major mineral elements were K, P and Mg, and their compositions except for Na did not change by pickling. Total phenolic compound, vitamin $B_1$ and C content increased during pickling. The antioxidant effects, electron donating abilities, nitrite-scavenging abilities increased by pickling.
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