• Title/Summary/Keyword: salt analysis

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Dependence of Ethyl Carbamate Formation on the Fermentation Variables in Korean Traditional Soysauce (재래식 간장의 제조조건이 ethyl carbamate 생성에 미치는 영향)

  • 정현정;권훈정
    • Korean journal of food and cookery science
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    • v.13 no.2
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    • pp.92-98
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    • 1997
  • Ethyl carbamate is an animal carcinogen and a by-product of fermentation. Since the highest level of ethyl carbamate was found in a traditional soy sauce sample in the previous study, soysauce was prepared in varying experimental conditions with three kinds of meju originated from different area of the country to investigate the factors affecting ethyl carbamate formation. The sample analysis methods included a semi-purification with solid-phase extraction and detection by GC-MS at SIM mode using m/z 62 fragment ion. Among the investigated factors, which includes source meju, bringing length, salt content, irradiation of visible light during bringing or storage, and storage length, source meju and storage length showed most profound effect on the formation of ethyl carbamate. Irradiation of visible light for 12 hours a day during storage lowered the concentration of ethyl carbamate compared to the soysauce kept in the dark. Meanwhile irradiation during the bringing as well as the degree of salt contents showed no effect.

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Effect of Health Behavior and Obesity Indices on Blood Pressure in Peru Low-income Urban Areas (Baseline 조사 결과를 이용한 페루 도시 빈곤지역 주민의 건강행태와 비만이 혈압에 미치는 영향)

  • Kim, Jae Woo;Nam, Eun Woo;Kim, Dohyeong;Yoon, Youngmin
    • The Journal of Korean Society for School & Community Health Education
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    • v.17 no.1
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    • pp.23-33
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    • 2016
  • Objectives: The purpose of this study is analysing the influence of how health behavior such as smoking, drinking, and consuming salt and obesity affects to blood pressure and providing useful data for preventing ischemic heart disease of Peru which is main cause of death since 2012 and promoting healthy lifestyle of community. Methods: At the selected four districts in Lima and Callao region of Peru by KOICA Peru office, survey was conducted among adults over the age of 18. Excepted 19 incomplete people for the missing, 686 people were analysed in this survey. Results: There was no significant relationship between blood pressure and drinking and salt intake. By regression analysis, systolic blood pressure was significantly related with gender, age and abdominal obesity and diastolic blood pressure was significantly related with gender and abdominal obesity. Conclusions: As a result, diastolic and systolic blood pressure are mainly affected by waist circumference and gender. Therefore, It's need to be classifying male into vulnerable groups in the occurrence of hypertension and providing health education and information about hypertension to them. For improving health status of vulnerable group, awareness of hypertension prevention and changing unhealthy lifestyle to healthy lifestyle activities are necessary. In the end, it is necessary to prevent abdominal obesity through periodic health education.

Fermentation Patterns of Chungkookjang and Kanjang by Bacillus licheniformis B1 (Bacillus licheniformis B1에 의한 청국장 및 간장 발효)

  • Lee, Jae-Jung;Lee, Dong-Seok;Kim, Han-Bok
    • Korean Journal of Microbiology
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    • v.35 no.4
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    • pp.296-301
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    • 1999
  • A Bacillus strain from Korean soil was isolated and identified to be Bacillus licheniformis B1 through various biochemical tests, VITEK, and MIDI system analysis. The strain produced extracellular amylase and protease. Whether or not the strain can perform Chungkookjang fermentation with autoclaved soybean and Kanjang fermentation was determined in this study. In Chungkookjang fermentation, browining materials of strong anti-oxidant increased 8-fold, and 2-fold in Kanjang, compared with initiation material for fermentation. Maximal protease activity in Chungkookjang was observed one day after inoculation. Protease activities in Kanjang decreased to the half, and then maintained constant values during fermentation, probably due to the inhibitory effect of salt on protease activities. High molecular mass of nucleic acids was identified in Chungkookjang and Kanjang. Since the nucleic acids were not observed in autoclaved soybean, they seem to be originated from B. licheniformis B1. This study demonstrated successive fermentation of Chungkookjang and Kanjang by B. licheniformis B1 isolated from nature, and suggested possible development of food rich in browing and nucleic acids.

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Chemical Properties of Indoor Individual Particles Collected at the Daily Behavior Spaces of a Factory Worker

  • Ma, Chang-Jin;Kang, Gong-Unn;Sakai, Takuro
    • Asian Journal of Atmospheric Environment
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    • v.11 no.2
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    • pp.122-130
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    • 2017
  • The main purpose of the study was to clarify the properties of individual particles collected at each behavior space of a factory worker. The samplings of size-segregated ($PM_{2.1-1.1}$ and $PM_{4.7-3.3}$) indoor particles were conducted at three different behavior spaces of a factory worker who is engaged in an auto parts manufacturing plant (i.e., his home, his work place in factory, and his favorite restaurant). Elemental specification (i.e., relative elemental content and distribution in and/or on individual particles) was performed by a micro-PIXE system. Every element detected from the coarse particulate matters of home was classified into three groups, i.e., a group of high net-counts (Na, Al, and Si), a group of intermediate net-counts (Mg, S, Cl, K, and Ca), and a group of minor trace elements (P, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, and Pb). The results of EF for $PM_{4.7-3.3}$ in home indicated that several heavy metals were generated from the sources within the house itself. An exceptional feature shown in the individual particles in workplace is that Cr, Mn, and Co were clearly detected in both fine and coarse particles. Cluster analysis suggested that the individual coarse particles ($PM_{4.7-3.3}$) collected at the indoor of factory were chemically heterogeneous and they modified with sea-salt, mineral, and artificially derived elements. The principal components in individual coarse particles collected at restaurant were sea-salt and mineral without mixing with harmful trace elements like chromium and manganese. Compared to the indoor fine particles of home and restaurant, many elements, especially, Cl, Na, Cr, Mn, Pb, and Zn showed overwhelmingly high net-counts in those of factory.

Effects of Salt Stress on Protein Content, ATPase and Peroxidase Activities in Tobacco. (염스트레스가 담배식물의 Protein, ATPase 및 Peroxidase 활성에 미치는 영향)

  • Lee, Sang-Gak;Kang, Byeung-Hoa;Lee, Hak-Su;Bae, Gill-Kwan
    • Korean Journal of Environmental Agriculture
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    • v.17 no.4
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    • pp.296-300
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    • 1998
  • The analysis of biochemical changes in tobacco plant as increase of NaCl concentraion was conducted. Total protein content and soluble protein content were decreased as NaCl concentration was increased, in that steady decreased until 120mM NaCl and largely decreased at 150mM NaCl. The expression of 74Kd subunit was increased until 60mM NaCl. However, the amount of 74Kd protein was decreased from 90mM NaCl. There was no difference for expression of other protein subunits. Chlorophyll a content was significantly decrease as NaCl concentration was increased, but chlorophyll b content was not much decreased. The slow increase up to 120mM NaCl and large increase at 150mM NaCl for ATPase and peroxidase activities indicated that 120mM NaCl could be a limiting concentration for salt injury.

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A case of pseudohypoaldosteronism type 1 with a mutation in the mineralocorticoid receptor gene

  • Lee, Se-Eun;Jung, Yun-Hye;Han, Kyoung-Hee;Lee, Hyun-Kyung;Kang, Hee-Gyung;Ha, Il-Soo;Choi, Yong;Cheong, Hae-Il
    • Clinical and Experimental Pediatrics
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    • v.54 no.2
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    • pp.90-93
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    • 2011
  • Pseudohypoaldosteronism type 1 (PHA1) is a rare form of mineralocorticoid resistance characterized in newborns by salt wasting with dehydration, hyperkalemia and failure to thrive. This disease is heterogeneous in etiology and includes autosomal dominant PHA1 owing to mutations of the NR3C2 gene encoding the mineralocorticoid receptor, autosomal recessive PHA1 due to mutations of the epithelial sodium channel (ENaC) gene, and secondary PHA1 associated with urinary tract diseases. Amongst these diseases, autosomal dominant PHA1 shows has manifestations restricted to renal tubules including a mild salt loss during infancy and that shows a gradual improvement with advancing age. Here, we report a neonatal case of PHA1 with a NR3C2 gene mutation (a heterozygous c.2146_2147insG in exon 5), in which the patient showed failure to thrive, hyponatremia, hyperkalemia, and elevated plasma renin and aldosterone levels. This is the first case of pseudohypoaldosteronism type 1 confirmed by genetic analysis in Korea.

Transport and Distribution of Calcium Salt in Tofu Manufacturing Process -Part I. Conductometric Measurement of Calcium Salt in Tofu and Drained Solution- (두부제조공정(製造工程)중 Calcium 염(鹽)의 행동(行動)과 분포(分布) -제1보(第一報). 전기전도도법(電氣傳導度法)에 의한 두부 및 순물의 Calcium 농도 측정방법(測定方法)-)

  • Yim, Sang-Bin;Lee, Choon-Ki;Chun, Jae-Kum
    • Applied Biological Chemistry
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    • v.28 no.1
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    • pp.8-12
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    • 1985
  • For measuring calcium content during the manufacturing process of Tofu, conductometric electrodes were made with the copper plate, and the results were compared with chemical analysis methods. Three types of plate material (I, II, III) for electrode were tested to apply for measuring $CaCl_2$ content in solution, drained solution from Tofu and in agar-agar gel ana Tofu. Empirical linear correlation equations between conductivity (Y, mho) and calcium content (C, Mole $\bar{C}$, mg% wet basis) were obtained for the quick estimation of calcium content during Tofu processings. Equations with plate II type electrode were Y=0.6364C+0.0775 for drained solution with r=0.99, and $Y=7.1503{\times}10^{-5}\bar{C}-2.9895{\times}10^{-3}$ for Tofu with r=0.91,respectively.

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A Study on Self-care Behavior Types of Hypertensives : Q-methodological Approach (고혈압환자의 자가간호행위 유형에 관한 연구 : Q 방법론 적용)

  • Park Young-Im
    • The Journal of Korean Academic Society of Nursing Education
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    • v.5 no.1
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    • pp.39-57
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    • 1999
  • Essential hypertension is a typical chronic disease requiring adequate and continuous management. And many studies supported that self-care was the essential factor to promote the wellbeing. The purpose of this study is to identify and understand the behavior patterns of self-care in hypertensives. As a research method, 35 Q-statements were collected through Individual interviews and review of the related literatures. 21 subjects were interviewed and the data were analyzed by the PC QUANL program with principal component analysis. There were 6 different self-care types classified as follows 1) Type 1 was the self-oriented control type, monitoring the blood pressure and taking the low salt diet. But they didn't take the anti -hypertensive drug and visit the health agency regularly. 2) Type 2 was the stress-control type. Their main activities were meditation to relieve the stress and communication with family. 3) Type 3 was called daily-life control type. This type tried to make their mind comfort and think positively. They also preferred walking and exercise regularly. 4) Type 4 was the medical-oriented control type, taking the anti-hypertensive drug, visiting the medical personnel and following the medical regimens. 5) Type 5 was the medication-oriented type. They only took the anti -hypertensive drug regularly and didn't any other self-care like as monitoring the blood pressure, taking the low salt diet and exercise. 6) Type 6 was called non-medication control type. This type had no medication, but tried to visit the health agency and health personnel. From the above results, it can be concluded that the self-care types were very various and self-care education have to provide individually according to the characteristics of self-care type. Another repeated study can be recommended to improve the nursing intervention the self-care behavior in chronic patient like as diabetics or rheumatoid arthritis.

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Sensory and Texture Properties of Gamdanja (감단자의 관능적 및 텍스쳐 특성)

  • Lee Hyo-Gee;Baek Hyun-Nam;Kim Jung-Won
    • Korean journal of food and cookery science
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    • v.20 no.6 s.84
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    • pp.650-657
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    • 2004
  • The objective of this study was to seek the best recipe for making Gamdanja. Gamdanja is a kind of rice cake made from persimmon extract and winy flour, with a little salt mixed into the waxy flour. The method involved boiling the persimmon extract and beating in the waxy rice powder until all the waxy flour had been added. The procedure was as follows: Gamdanja containing different ratios of ingredients, such as persimmon extract (23, 23.5 and 24 hrs) and waxy rice flour (160 and 180g). The most desirable recipe was determined after sensory examination and mechanical tests using texture, moisture content and colorimeter measurements. The results of the sensory evaluation showed that Gamdanja made using persimmon extracted for 23.5 hrs, with the additional of 160g of winy flour gave the higher scores for QDA profile, chewiness, delicacy and after swallowing preference than the other ratios. The results of the acceptance test also showed that the Gamdanja made using the persimmon extracted for 23.5 hrs with 160g of waxy rice flour was the best mix in every respect, such as for color and overall acceptability. In the textural analysis of Gamdanja, the hardness, adhesiveness, gumminess and chewiness were increased by the additiong of furtherway lour. The moisture content of Gamdnja with persimmon extracted for 23 hrs was higher an those extracted for 23.5 and 24 hrs. The L-, a- and values of Gamdanja were increased with decreasing waxy flour. The sensory and mechanical examinations showed the overall quality of Gamdanja had positive correlations with delicacy and color, but negative correlations with hardness, adhesiveness, gumminess, and chewiness. As a result of these tests, the most desirable recipe for the Gamdanja was persimmon extracted for 23.5 hrs with the additional of 160g of waxy rice flour, containing $1\%$ salt and a moisture content of $45.87\%$.

Prediction of the Rheological Property of Protein Food Gel System by Using Ultrasonic Wave (초음파를 이용한 단백질 식품젤의 물성변화의 예측에 관한 연구)

  • Yoon, Won-Byung;Kim, Byung-Yong;Kim, Myung-Hwan
    • Korean Journal of Food Science and Technology
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    • v.25 no.6
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    • pp.632-636
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    • 1993
  • Gel strength of fish protein at various processing conditions such as heating temperature, heating time and salt content was determined by using compressive stress and residual delay time of ultrasonic wave. The compressive stress, interpreted as indicating the relative gel strength, was increased with increasing the heating temperature and heating time, and with decreasing the salt content, while the delay time of ultrasonic wave reduced, indicating that the gel strength and the delay time are inverse proportion. The result of the multiple regression analysis with factorial design showed that the model equation consisted with delay time and processing condition variables gave the good prediction of the gel compressive stress which was coincided with compressive stress measured.

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