Microbial and chemical changes of salt-fermented youbsak which is a traditional processed fish product only manufactured in Hampyung bay region were investigated in this study. Total microbial cells of salt-fermented youbsak was gradually increased up to 30 days fermentation and then it was decreased. The pH and total acidities of fermented youbsak were not greatly changed, except for a rapid decrease in pH and acidity after 15 days fermentation. Volatile basic nitrogen and amino-type nitrogen were rapidly increased until 30 days fermentation and then slightly decreased by adding the extracted soup of pig bones. Palmitic acid was the most abundant fatty acid, and the major free amino acids in salt-fermented youbsak were composed of leucine, tyrosine, glutamic acid, valine, isoleucine, alanine and methionine.
Kim, Young-Soon;Han, Young-Bong;Yoo, Young-Jin;Jo, Jae-Sun
Korean Journal of Food Science and Technology
/
v.13
no.2
/
pp.146-152
/
1981
The proximate compositions, fatty acids, and amino acids of mung bean(Phaseouls aureus) were determind: 1. The proximate compositions of mung bean were 24.80% crude protein, 4.75% crude fiber, 4.75% crude ash, 46.03% carbohydrate and 0.82% fat. 2. Saponification number, iodine number and non-saponifiable content of the lipids extracted from mung bean were 154.99, 117.05 and 14.83% respectively 3. The protein of mung bean was composed of glutamic acid (15.92%) and aspartic acid (12.09%) as major amino acids and considerable amounts of leucine (8.19%), arginine(7.31%) and pheylalanine (6.41%). The essential amino acid content including lysine(8.3%), threonine (3.5%) and tyrosine (2.83%) was higher than those of rice and barley which are deficient in those amino acids. 4. The lipids were composed of 35.5% linoleic acid, 15.5% linolenic acid and palmitic acid, 37% stearic acid, 5% oleic acid as major components, and 0.4% myristic acid, 1.0% arachidonic acid and 1.2% behenic acid as minor components. The saturated and unsaturated fatty acid ratio of oil extracted with di-ethyl ether from mung bean was $42{\sim}43/57{\sim}58%$.
Journal of Physiology & Pathology in Korean Medicine
/
v.24
no.3
/
pp.504-511
/
2010
Diabetes is a disease that contains a high concentration of glucose in blood and due to defects in either insulin secretion or insulin action. Although the distinctive causes and factors of diabetes have not been clarified, the genetic factors are suggested as a main susceptibility until now. SNP (Single Nucleotide Polymorphism), as the most common genetic variation, has an influence on personal susceptibility for diseases. A nonsynonymous SNP, which changes the amino acid of the protein and its function, is especially important. Therefore, this study hypothesized that there are associations between specific SNPs of the targeted genes. Transcription factor 7-like 2 (TCF7L2) and fat mass and obesity associated (FTO) genes were selected as target genes from the results of genome-wide association and other related research studies. Second, four nonsynonymous SNPs (three in TCF7L2 and one in FTO gene) were selected as target SNPs by using public database of NCBI (National Center for Biotechnology Information). The recruited personnel was classified into three subgroups of diabetes, impaired fasting glucose (IFG) and normal groups. The individual genotypes of each group were analyzed by resequencing. None of genetic variations at four targeted SNP sites was revealed in all samples of this study. However, this study found two new SNPs that were not reported in TCF7L2 gene. One is synonymous SNP, which is heterozygous of C/T and no amino acid change of asparagine/asparagines, was located at c1641 and found in one normal person. Another is nonsynonymous SNP, which is heterozygous of G/A, was located at c1501 and found in two samples. This new discovered nonsynonymous SNP induce the amino acid change from alanine to threonine. Moreover, this new nonsynonymous SNP was found among two persons, one of whom was a diabetes patient and the other one was a person at boundary between IFG and normal, suggesting that this variant might be associated with IFG or diabetes. Even if there is a limitation of sample number for statistical power, this study has an importance due to the discovery of new SNPs. In the future study, a large sample number of diabetes cohort will be needed to investigate the frequency and association with new discovered SNP.
Proceedings of the Korean Society of Applied Pharmacology
/
2002.07a
/
pp.113-113
/
2002
Phylogenetically conserved Bcl-2 family proteins play a pivotal role in the regulation of apoptosis from virus to human. Members of the Bcl-2 family consist of antiapoptotic proteins such as Bcl-2, Bcl-xL, and Bcl-w, and proapoptotic proteins such as BAD, Bax, BOD, and Bok. It has been proposed that anti- and proapoptotic Bcl-2 proteins regulate cell death by binding to each other and forming heterodimers. A delicate balance between anti- and proapoptotic Bcl-2 family members exists in each cell and the relative concentration of these two groups of proteins determines whether the cell survives or undergoes apoptosis. Mcl-1 (Myeloid cell :leukemia-1) is a member of the Bcl-2 family proteins and was originally cloned as a differentiation-induced early gene that was activated in the human myeloblastic leukemia cell line, ML-1 . Mcl-1 is expressed in a wide variety of tissues and cells including neoplastic ones. We recently identified a short splicing variant of Mcl-1 short (Mcl-IS) and designated the known Mcl-1 as Mcl-1 long (Mcl-lL). Mcl-lL protein exhibits antiapoptotic activity and possesses the BH (Bcl-2 homology) 1, BH2, BH3, and transmembrane (TM) domains found in related Bcl-2 proteins. In contrast, Mcl-1 S is a BH3 domain-only proapoptotic protein that heterodimerizes with Mcl-lL. Although both Mc1-lL and Mcl-lS proteins contain BH domains fecund in other Bcl-2 family proteins, they are distinguished by their unusually long N-terminal sequences containing PEST (proline, glutamic acid, serine, and threonine) motifs, four pairs of arginine residues, and alanine- and glycine-rich regions. In addition, the expression pattern of Mcl-1 protein is different from that of Bcl-2 suggesting a unique role (or Mcl-1 in apoptosis regulation. Tankyrasel (TRF1-interacting, ankyrin-related ADP-related polymerasel) was originally isolated based on its binding to TRF 1 (telomeric repeat binding factor-1) and contains the sterile alpha motif (SAM) module, 24 ankyrin (ANK) repeats, and the catalytic domain of poly(adenosine diphosphate-ribose) polymerase (PARP). Previous studies showed that tankyrasel promotes telomere elongation in human cells presumably by inhibiting TRFI though its poly(ADP-ribosyl)action by tankyrasel . In addition, tankyrasel poly(ADP-ribosyl)ates Insulin-responsive amino peptidase (IRAP), a resident protein of GLUT4 vesicles, and insulin stimulates the PARP activity of tankyrase1 through its phosphorylation by mitogen-activated protein kinase (MAPK). ADP-ribosylation is a posttranslational modification that usually results in a loss of protein activity presumably by enhancing protein turnover. However, little information is available regarding the physiological function(s) of tankyrase1 other than as a PARP enzyme. In the present study, we found tankyrasel as a specific-binding protein of Mcl-1 Overexpression of tankyrasel led to the inhibition of both the apoptotic activity of Mel-lS and the survival action of Mcl-lL in mammalian cells. Unlike other known tankyrasel-interacting proteins, tankyrasel did not poly(ADP-ribosyl)ate either of the Mcl-1 proteins despite its ability to decrease Mcl-1 proteins expression following coexpression. Therefore, this study provides a novel mechanism to regulate Mcl-1-modulated apoptosis in which tankyrasel downregulates the expression of Mcl-1 proteins without the involvement of its ADP-ribosylation activity.
A survey of the free amino acids and free sugars in tomato, watermelon, muskmelon, peach and plum was made by means of amino acid autoanalyzer and thin layer chromatography. The results of the survey are summarized as follows. 1) Fifteen amino acids found in fruit were aspartic acid, glutamic acid, alanine, serine, asparagine, lysine, valine, glycine, methionine, histidine, threonine, leucine, isoleucine, proline and arginine, and an unknown was found. 2) Ten kinds of amino acids were detected in tomato, peach and plum, thirteen amine acids in watermelon and muskmelon (edible part), and eleven amino acids in muskmelon (rind). 3) In general, these fruits contained similar amounts of these thirteen amino acids, and although they were not outstandingly high in any one acid they did contain a nutritionally well-balanced mixture. 4) Amino acids found in the greatest amount in fruit were following: glutamic acid and aspartic acid in tomato, asparagine and lysine in watermelon, alanine, serine and aspartic acid in musk-melon, and aspartic acid and serine in peach and plum. 5) Glucose, fructose, sucrose and maltose were detected in all fruit. The contents of glucose and fructose were high, and those of sucrose and maltose were low.
Five takju prepared using four types of nuruk (a traditional Korean fermentation starter made of malted wheat; non-cooked, naturally inoculated) labeled SH, SS, JJ, and SJ, and one type of koji (cooked, inoculated with an inoculum) labeled MN, were compared. Titratable acidity, pH, sugars, ethanol, amino acids, organic acids, and microbial changes in samples were measured, and the sensory properties were evaluated. Titratable acidity, alcohol, and organic acid content increased as sugar contents decreased. The overall ethanol concentration of all takju increased over time, reaching a maximum of 13.08-14.96% (w/v) at 7-21 days. The total amino acid contents of takju prepared with nuruk, except for one (SJ), were higher than the takju prepared with koji (MN). Lactic acid bacteria were also isolated from the starters. Sequence analysis of 16S rRNA genes (500 - 600 bp) of 223 isolates revealed that the major strains were in the genera of Leuconostoc, Weissella, Pediococcus, and Lactobacillus.
The amount of cellular components including soluble sugars, amino acids, organic acids and glucosinolates (GLS) was investigated during radish root processing to develop a radish beverage. The radish root was divided into two parts, white and green tissue, and processed separately by extracting the juice from the fresh tissue and from the boiled tissue to compare differences in the components content among the preparations. The overall palatability of both the fresh and boiled extracts from the green part of the radish was higher than that of the same extracts from the white part. The sweetness of extract by boiling increased and its pungency decreased, thereby the palatability increased by being compared to the fresh radish extract. The sweetness was affected by sucrose not by glucose or fructose of monosaccharides by showing different sucrose contents according to treatment comparing palatability. Malic acid was identified as primary organic acid, and the content was higher in both the fresh and boiled extracts from the white part than in the extracts from the green part of the radish. The fresh extract from the green part of the radish contained more essential amino acids, such as threonine and valine, and more hydrophilic amino acids including glutamic acid, aspartic acid, and arginine than those of the fresh extract from the white part, suggesting the green fresh part is more palatable than the white fresh part. The main sulfur compound was ethylthiocyanate in radish, and others were butyl isothiocyanate, dimethyl-disulfide, and 4-methylthio-3-butylisothiocyanate. The four GLS were detected much more in the fresh green and fresh white parts of the radish because they evaporated during boiling. The contents of the four sulfur compounds were higher in the white fresh part than in the green fresh part, which is likely the reason the pungency was higher and the palatability was lower in the white fresh part than in the green fresh part of the radish. The ascorbic acid content was higher in the fresh extract compared to the boiled extracts from both the green and white parts. Taken together, these findings indicate that fresh radish extract is superior to obtain in terms of retaining desirable nutritional and functional components for health.
CCK and cholinergic agonist stimulate enzyme release from the pancreatic acini via G-protein-mediated activation of phospholipase C, In contrast secretin and related peptides increase the level of cAMP and activate cAMP-dependent protein kinase. Camostat, a synthetic protease inhibitor, causes pancreatic hypertrophy and hyperplasia by increasing the CCK release. In this study, the secretagogue-induced changes of intracellular proteins were examined in the dispersed pancreatic acini of rats with or without camostat treatment. Camostat(FOY-305, 200 mg/kg, p.o.) was given for 4 days twice daily and the dispersed acini were prepared at 12 bouts after last treatment. The profiles of Intracellular phosphoproteins were analyzed by two-dimensional gel electrophoresis after incubating the acini with $^{32}P$. The amylase release from the dispersed acini was measured. The pancreatic weight was increased to 126% of control, while amylase activity per mg acinar protein decreased to 41% of control, The maximum response of amylase release from dispersed acini to CCK-8 or carbachol was markedly decreased(65% or 46% of control, respectively). The group of intracellular proteins(24 kD, pI $4.5{\sim}8.5$) was increased in quantity by camostat. CCK-8 or secretin increased phosphorylation of a protein(34 kD, pI 4.7) in camostat-treated as well as control rats. CCK-8 increased tyrosine phosphoryiation in the acini of control rats. However, in camostat-treated rats, the basal level of tyrosine phosphorylation was increased and it was rather decreased by CCK-8. Secretin had no effect on the level of tyrosine phosphorylation in acini. These results indicate that both phospholipase C and adenylate cyclase induce phosphorylation of an intracellular acinar protein(34 kD, pI 4.7) and camostat treatment increases the basal level of tyrosine phosphorylation in acinar cells. And these results suggest that not only serine/threonine protein kinase but also protein tyrosine kinase/phosphatase are involved in the process of CCK receptor mediated stimulation-secrelion coupling.
Essential amino acid composition of seventy eight medicinal herbs marketed in Korea was analyzed of the basis of their dried weight. From the results analyzed, it was shown that Alisma orisntale (S.) J. (1,911.5 mg%), Foeniculum vulgare M. (1,090.8 mg%), Artemisia princeps P. (1,073.6 mg%) and Typha latifolia L.(956.1 mg%) contain in threonine. Alisma orisntale (S.) J. (2,523.3 mg%), Nelumo nucifera G. (1,984.7 mg%) and Foeniculum vulgare M. (1,553.8 mg%) contain in lysine. Nelumo nucifera G. (738.3 mg%), Alisma orisntale (S.) J. (635.2 mg%) and Foeniculum vulgare M. (507.7 mg%) contain in methionine. Nelumo nucifera G. (2,496.9 mg%), Alisma orisntale (S.) J. (2,295.6 mg%) and Coix lachrymajobi L. var. M. S. (2,222.5 mg%) contain in leucine. Nelumo nucifera G. (1,624.6 mg%), Alisma orisntale (S.) J. (1,432.7 mg%) and Xantnium strumarium L. (1.371.7 mg%) contain in isoleucine. Alisma orisntale (S.) J (1,791.0 mg71), Nelumo nucifera G. (1,570.6 mg%) and Xantnium strumarium L. (1,498.7 mg%) contain in phenylalanine.
Kim, Young-Gook;Im, Tae-Gon;Park, Sang-Su;Heo, Nam-Chil;Hong, Suk-Soon
Korean Journal of Food Science and Technology
/
v.32
no.3
/
pp.742-746
/
2000
Quality improvements of soybean sprouts on DSSE(Defatted Sesame Seed Extracts)-treated cultivation were determined in terms of growth rate, nutrient compositions value and the total bacteria. The length, diameter and weight of treated soybean sprouts were increased by 6.2%, 10.0% and 9.1%, respectively, compared with control. The contents of moisture, crude ash, crude fat of the treated soybean sprouts were similar to the control soybean sprouts, whereas crude protein content of the treated sprouts was 17% higher than the control. Both soybean sprouts contained 17 amino acids but the treated sprouts contained the higher contents of glutamic acid, threonine, methionine, tyrosine and valine. Little difference in fatty acid composition was noted between the two soybean sprout samples. Vitamin C contents of the treated soybean sprouts were 18.2 mg%, which corresponds to about 50% more vitamin C than the control. The treated soybean sprouts contained higher contents in minerals such as K, P and Ca than those of the control. The total bacteria of soybean sprouts in the control soybean sprouts increased rapidly after 2-day storage, but treated soybean sprouts increased immediately after 4-day storage.
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