• Korean Journal of Food Science and Technology
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• v.38 no.2
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• pp.304-308
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• 2006

This study was performed to understand the behavior of protein mobility and intensity of enzymatic hydrolysis according to crosslinking of sodium caseinate, whey protein isolate, skim milk and whole milk powders with or without transglutaminase (TGase, w/w = 200 : 1) at $38^{\circ}C$. Whey protein was limited to crosslinking and skim milk was relatively more increased in high molecular polymer than whole milk. The degree of crosslinking decreased in the order of sodium caseinate>skim milk>whole milk>whey protein isolate. The SDS-PAGE results indicated that main bands of TGase treated samples had a high mobility and formed bands of molecular weights below 15 kDa by hydrolysis with pepsin after 10 min of reaction time. However, ${\beta}-lactoglobulin$ showed remarkable stability against pepsin hydrolysis treated with and without TGase. The high molecular polymers were easily hydrolyzed with digestive enzymes in vitro experiment. These results suggested that novel dairy products using TGase would have no special digestive problem in human body.

• Journal of Marine Life Science
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• v.7 no.2
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• pp.145-153
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• 2022

Mercury (Hg) is a major concern in marine environment because of their bioaccumulation and biomagnification properties, and adverse effects to aquatic organisms at even a trace amount. However, little information on the effects of Hg, compared to other heavy metals, is available in marine small crustaceans. Here, we investigated the transcriptional modulation of metabolism-related genes in the brackish water flea, Diaphanosoma celebensis after exposure to sublethal concentration (0.2, 0.4, 0.8 ㎍/l) of HgCl₂ for 48 h. Relative mRNA expression levels of five detoxification enzyme-coding genes (cytochrome P450; cyp360A1, cyp361A1, cyp4AP3, cyp4C122, and cyp370C5) and six digestive enzyme-coding genes [alpha amylase (AMY), alpha amylase related protein (AMY-like), trypsin (TRYP), chymotrypsin-like protein (CHY), lipase (LIP), pancreatic lipase-related protein (PLRP)] were analyzed using quantitative real time reverse transcription polymerase chain reaction (qRT-PCR). As results, Hg increased the mRNA level of cyp370C5 (clan2) and cyp4AP3 (clan4) in a concentration dependent manner. A significant increase in TRYP mRNA was also concentration-dependently observed after exposure to Hg. These findings suggest that cyp370C5 and cyp4AP3 play a key role in Hg detoxification in D. celebensis, and Hg can affect energy metabolism by modulating the transcription of digestive enzyme. This study will provide better understanding the molecular effects of Hg in marine small crustacean.

• Korean journal of food and cookery science
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• v.23 no.3 s.99
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• pp.314-320
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• 2007

The objective of this study was to investigate the effect of grain size on the physicochemical properties of rice porridge. Here, the grain size of the rice was classified as whole grain, half grain, and flour by traditional Korean cooking methods. The viscosity of the rice flour porridge was highest for the among the three different grain size porridges. In the amylographs, the increase in viscosity for the whole grain porridge was higher than that of the rice flour porridge during cooling. The soluble solid and reducing sugar contents of the rice porridges increased according to the rice grain size, while the blue value decreased. The SDI (starch digestion index) increased according to the rice grain size. The RDS (rapidly digestible starch) was highest while the SDS (slowly digestible starch) the lowest in the rice flour porridge. The morphologies of the rice porridges were examined by SEM and showed a smoother surface and more exudated gelatinized granules in the rice flour than in the whole grain rice porridge. In conclusion, rice porridges made from the smallest possible grain size such as flour may be helpful for people with weaker digestive systems such as infants, the elderly, and hospital patients.

• CELLMED
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• v.3 no.4
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• pp.27.1-27.13
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• 2013

Epilepsy has now become the most serious brain disorder. A number of synthetic antiepileptic drugs are available in practice, however their effectiveness does not grip true with the entire population suffering from epilepsy. Traditional systems of medicine are popular in developing countries and most of the population relies on traditional medicines for their primary health care need. Medicinal plants to be an important source of traditional medicines. Various plants are used for the treatment of epilepsy in traditional system of medicines and various plants are yet to be scientifically investigated. Phytoconstituents have been the basis of treatment of human diseases including epilepsy. Herbal products are extensively used for the treatment of many diseases worldwide and where allopathic fails or has severe side effects. Psycho neural drugs are also have very serious side effects like physical dependence, tolerance, deterioration of cognitive function and effect on respiratory, digestive and immune system. So the treatments through herbal medicines are widely used across the world due to their wide applicability and therapeutic efficacy with least side effects, which in turn has accelerated the research regarding natural therapy. In this review we have summarized some herbal antiepileptics.

• Biomolecules & Therapeutics
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• v.6 no.3
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• pp.303-311
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• 1998

The general pharmacological properties of new platinum (II) coordination complexes, SA : [Pt(trans-ι-DACH)(DPPE)] . 2NO$_3$, SB : [Pt(cia-DACH)(DPPP)] 2NO$_3$ and SC : [Pt(cia-DACH)(DPPE)] 2NO$_3$on central nervous, respiratory, cardiovascular and digestive systems were studied in various experimental animals. These platinum (II) anticancer agents had no effects on analgesia, thiopental-induced sleeping time, body temperature, strychnine-induced convulsion, inflammation and local anesthetic action in mice and rats. Intestinal motility, stomach-ulcer induced by serotonin and bile-secretion of rats were not influenced by the dose of 30 mg/kg. However SB and SC induced a mild decrease in heart rate in anesthetized rats. Based on these results, these new platinum (II) complexes may be regarded as a valuable lead compound in the development of new anticancer chemotherapeutic agents with marked antitumor activity and low toxicity.

• Environmental Engineering Research
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• v.18 no.4
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• pp.259-265
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• 2013

This study was conducted June 2011 at Gamo Lagoon, after tsunami of March 2011, to estimate food sources and utilization. The results show that the tsunami affected the sediment properties by changing the physical environmental alterations. The fatty acids of the gut content of Nuttallia olivacea mostly comprised the same organic matter found in the sediment. Fatty acids in the tissues showed mainly diatoms, bacteria, and dinoflagellates. That is, most of the food sources (i.e., diatoms, bacteria, dinoflagellates, macroalgae, and terrestrial organic matter) probably pass through the digestive system unharmed; however, terrestrial organic matter, which is refractory to biochemical degradation, indicated a different assimilation trend between the gut content and the tissue. This result suggests that input of labile organic matter from the sediment may control selective metabolism in N. olivacea. From these results, although the physical environment of sediment characteristics by tsunami changed, the food utilization of N. olivacea suggested a better assimilation of selected components from the gut content, irrespective of physical alteration.

• YAKHAK HOEJI
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• v.37 no.2
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• pp.193-197
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• 1993

For the investigation of medicinal resources in Crataegus species, a study was carried out to clarify the constituents in the leaves of Crataegus Pinnatifida var. pubescens (Rosaceae), of which fruits have been used to stomachic, digestive, astringent, analgesic, and cardiotonic, etc. as a folk medicine in Korea. From the n-BuOH fraction of MeOH extract two flavone glycosides, vitexin(apigenin-8-C-$\beta$-D-glucopyranoside) and 2"-O-rhamnosyl vitexin(apigenin-8-C-$\alpha$-L-rhamnosyl-(1$\rightarrow$2)-$\beta$-D-glucopyrano side) were isolated and identified on the basis of their physico-chemical properties and spectroscopic evidences(UV, IR, NMR, FAB-Mass etc.) in comparision with authentic samples.amples.

• Journal of the East Asian Society of Dietary Life
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• v.12 no.6
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• pp.547-553
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• 2002

This study was attempted to enhance the contents of dietary fiber and minerals of cooked rice by adding four different levels of carrot juice in cooking water (0%:A. 10%:B. 20%:C. 30%:D). The degree of gelatinization and retrogradation, sensory evaluation. and in vitro digestion ratio were tested. These results concluded that the rice cooked with 10～20 % of carrot juice in cooking water was quite acceptable. the optimum cooking conditions fur the rice were one hour presoaking time, 160% cooking water to rice ratio. 20 minutes heating time and 10 minutes steamed cooking.

• YAKHAK HOEJI
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• v.4 no.1
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• pp.35-38
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• 1959

The enzymatic activity of amylase which was isolated from a shell fish Veneridae Soxidmnus purpuratus Sowerby(Korean name :Gai-jo-gai") was studied and the obtained results were as follows: (1) The optimum pH of the enzyme was Ca. 6.2-6.4. (2) Prohibiting activity of metalic ions for the enzymatic activity was the order of 1/1000M-$Mg^{++}$>1/1000M-$Sr^{++}$>1/1000M-$Na^{+}$, and $Ca^{++}$ ion's prohibiting action was hardly showed. (3) Of 3 specimens of amyiase from Heptapancreas, Gastro-intestine and crystalline style, the highest activity was shown by amylase from crystlline style, and the other two showed almost same degree of activity. (4) Heptapancreas Amylase from the shell fish showed remarkably higher enzymatic activity than the pancreas amylase from a pig.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.220-221
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• 2001

Phytic acid (myo-inositol 1,2,3,4,5,6-hexakisdihydrogen phosphate) is one of the major storage form of phosphorous in the seeds of plants, which are the principal components of feed stuffs. Monogastric animals like Pigs and poultry as well as fish lack phytase activities in their digestive system and most undigested phytic acid was excreted in their manure. (omitted)