• Title/Summary/Keyword: common salt

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Study ascorbic acid in apple by treatment of mixer and salt solution (Mixer 및 소금물 처리에 의한 사과의 Asxorbic Acid 함량의 변화)

  • 강신주
    • Journal of the Korean Home Economics Association
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    • v.8 no.1
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    • pp.87-92
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    • 1970
  • Recently it has become a common belief that ascorbic acid comes to break up in the process of making its color after peeling it. In this study the writer has attempted to observe whethier ascorbc acid really breaks up or not, what percentage of salt is needed in water to keep ascorbic acid in the best condition. Ascorbic acid was quantified by the spectrophotometric method. The results were obtained as follows; It seems that ascorbic acid does not break up considerably in mixing by the imxer for two minutes and if the mixing lasts longer ascorbic acid breaks up by heat and presumably by enzyme and oxidation. Generally at our home the breaking of ascorbic acid usually does not appear so much as only two minutes, mixing gives us the desirable result.

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Characteristics of Seaweed Salts Prepared with Seaweeds (해조소금의 제조에 관한 연구)

  • Kim, Dong-Han;Lee, Sang-Bok;Rhim, Jong-Whan
    • Korean Journal of Food Science and Technology
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    • v.36 no.6
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    • pp.937-942
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    • 2004
  • Physicochemical properties and mineral composition of seaweed salts prepared by incineration and osmotic dehydration methods were determined. As the incineration temperature increased, yield of seaweed salts, insoluble solids, pH, alkalinity, and oxidation-reduction potential (ORP) decreased. Alkalinity of salt prepared with sea tangle was higher than that of sea mustard. ORP decreased by incineration above $700^{\circ}C$, and was lower in salt with sea tangle. As incineration temperature increased, amounts of K and Ca in seaweed salt increased, whereas that of Mg decreased. Potassium and Ca contents of seaweed salt increased remarkably compared with those of common salt. Potassium content of sea tangle salt was higher than that of sea mustard. As incineration time increased, yield of seaweed salts, insoluble solid content, and pH decreased, whereas ORP of the salt increased. Potassium content of seaweed salt with incineration time, while Ca and Na contents decreased after incineration of 8 and 4 hr, respectively. Yield of seaweed salt by osmotic dehydration increased as immersion time in sea water increased. pH of salt from sea mustard was higher than that of sea tangle. ORP of seaweed salt dried three times was -128.8 mV, significantly lower than that of salt prepared by incineration method. As sea water immersion time increased, Mg content of seaweed salt increased significantly, while Ca content decreased. Potassium content of seaweed salt was higher in sea tangle salt. In case of salt prepared by incineration of residuals, pH increased with immersion time but ORP decreased.

Coexistence of Central Diabetes Insipidus and Prolonged Cerebral Salt Wasting Syndrome after Brain Tumor Surgery: A Case Report

  • Lee, Ji Sun;Baek, Hee Jo;Kim, Chan Jong;Yang, Eun Mi
    • Childhood Kidney Diseases
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    • v.24 no.1
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    • pp.42-46
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    • 2020
  • Disturbances in water and salt balances are relatively common in children after brain tumor surgery. However, the coexistence of different diseases of water and sodium homeostasis is challenging to diagnose and treat. The coexistence of combined central diabetes insipidus (CDI) and cerebral salt wasting syndrome (CSWS) is rare and may impede accurate diagnosis. Herein, we report the case of an 18-year-old girl who underwent surgery for a germinoma and who presented prolonged coexistence of CDI and CSWS. The patient was diagnosed with panhypopituitarism with CDI at presentation and was treated with hydrocortisone, levothyroxine, and desmopressin. Postoperatively, she developed polyuria of more than 3L/day, with a maximum daily urine output of 7.2 L/day. Her serum sodium level decreased from 148 to 131 mEq/L. Polyuria was treated with desmopressin at incremental doses, and hyponatremia was managed with fluid replacement. At 2 months after surgery, she presented with hyponatremia-induced seizure. Polyuria and hyponatremia combined with natriuresis indicated CSWS. Treatment with fludrocortisone were initiated; then, her electrolyte level gradually normalized. CSWS is self-limiting and generally resolves within 2 weeks. However, the patient in this study still required treatment with vasopressin and fludrocortisone at 16-months after surgery. Hyponatremia in a patient with CDI may be erroneously interpreted as inadequate CDI control or syndrome of inappropriate antidiuretic hormone secretion, leading to inappropriate treatment. The identification of the potential combination of CDI and CSWS is important for early diagnosis and treatment.

Noise Removal of Image Signals using Inflection Points on Histogram (히스토그램의 변곡점을 이용한 영상 신호의 잡음 제거)

  • Baek, Ji-Hyeon;Kim, Nam-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.24 no.11
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    • pp.1431-1436
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    • 2020
  • In modern society, various video devices such as CCTV and black boxes are used for convenience. However, noise is frequently generated in the process of transmitting and receiving video images and video signals photographed at night. If such noise is not eliminated, the problem that the image is difficult to identify is generated. Accordingly, noise elimination of images in the image information is an indispensable step. Salt and Pepper noises are typical impulse noises among image noises. Previous research has been carried out as a method for eliminating noise, and CWMF, MMF and A-TMF are typical methods. In common, such a filter exhibits excellent performance in a low-density noise area, but a disadvantage is that noise elimination performance in a high-density noise area is somewhat insufficient. Accordingly, the proposed algorithm uses the inflection point of the histogram graph to separate areas and remove singular points, and proposes a weighting filter utilizing histogram distribution. PSNR was used for objective judgment.

Changes in Nutritional Components of Toha-jeot with Wheat Bran during Fermentation (밀기울을 첨가한 토하젓의 숙성과정 중 영양성분의 변화)

  • 박영희;박복희
    • Korean Journal of Human Ecology
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    • v.3 no.2
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    • pp.77-89
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    • 2000
  • In this study, to activate the industrialization and to improve the quality of Toha-jeot by shortening the fermentation period, we investigated the changes in the nutritional components of Toha-jeot. salt-fermented Toha shrimp( Caridina denticulata denticulata $D_{E}$ $H_{AAN}$) which was salted with a low-salt group and high-salt group during fermentation. In this experiment. there are four groups of Toha-jeot which were manufactured with 15% ratio of common salt: the first group containing 2% wheat bran (w2%-L). the second high-salt group containing 2% wheat bran( w2%-H) , the third low-salt group containing 4% wheat bran (w4%-L) and the last high-salt group containing 4% wheat bran(w4%-H). These four groups were refrigerated at 4${\pm}$1$^{\circ}C$ and then taken out for analysis at three month intervals during 9 month. Among the free amino acid contents in Toha-jeot, 22 kinds were detected. 6 month after the fermentation when the quantity of the amino acid contents in Toha-jeot is highest, ornitine, glutamic acid, leucine. alanine. lysine and valine occupy the majority, in the order of abundance. In cases of nucleotides. 6 month after the fermentation. from the groups w2%-L, w2%-H and w4%-L, inosine and IMP were not detected. and hypoxanthine, AMP, ADP were detected but 9 month after the fermentation ADP was not detected. The main constituents of fatty acid were as follows : (a) from w2%-L, w2%-H, 6 month after the fermentation. $C16:0$, $C12:0$, $C18:1$, $C18:3$, and $C16:1$. (b) from w4%-L. 6 month after the fermentation, $C18:3$, $C16:0$, $C12:0$ and $C18:1$. (c) from W4%-H, $C16:0$, $C12:0$, $C18:3$ and $C18:1$. In case of mineral contents. Na, Ca. K. Mg, Fe. Zn, Mn and Cu were detected according to the magnitude of the quantity. From the group w4%-H, high quantity of Na was detected during the total fermentation period. In case of color value, from the groups w2%. the values of L. a. b were highest after 6 month fermentation and were decreased after 9 month fermentation, while from groups w4%, the values of L, a, b were gradually decreased after 3 month fermentation.ion.

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A Study on Improvement of Safety Standards for Commercial Gas Burning Appliances (업무용대형연소기 안전기준 개선방안 연구)

  • Choi, Suel-Ki;Ahn, Hyun-Soo;Lee, Chang-Eon;Kim, Young-Gu
    • 한국연소학회:학술대회논문집
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    • 2014.11a
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    • pp.309-310
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    • 2014
  • Commercial gas burning appliances are classified by KGS AB338. Even though there are many types of gas appliances with different purposes and uses, common standards are applied to the appliances. Manifold of commercial gas range could often be corroded by salt water. Gas leaks and accidents could be occurred by the corrosion. According to suggestion of detailed material standards for manifold of commercial gas range, it could help to use safely and prevent gas accidents.

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Microbiological Study of Aquarium Water around the Costal Sanitary landfill Sites (매립지하해수의 위생학적 고찰)

  • 조용순;이인자
    • Journal of environmental and Sanitary engineering
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    • v.5 no.1
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    • pp.73-82
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    • 1990
  • This study was conducted to investigate the vibrio sap contamination of aquarium (water) in Incheon Area The results obtained were as follows : 1. V. parahaemolyticus was detected 20.4% at samples of aquarium water and not detected at underground water 2. V. unlnificus was not detected at all samples 3. Underground water was similar to aquarium water on pH and the concentration of salt 4. Underground water proved it's safety bacteriologically 5. V. parahaemolyticus was common in the sea water between July to October.

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A Study on the Processing Aptitude and Storage of Common-European Squid(Loigo vulgaris) 2. The Skin Stripping, Freezing and Thawing Conditions (유럽화살오징어의정장성 및 가공적성에 관한연구 2. 탈피 동결 및 해동조건)

  • 박희열;허종화
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.19 no.2
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    • pp.175-179
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    • 1990
  • Investigations of skin stripping freezing and thawing conditions of common-European squid (Loigo vulgaris) were carried out. The most effective method of skin stripping was to immerse the sample at 5$0^{\circ}C$ for 10-15 minutes in fresh water or salt solution(5-10% w/v) Contact freezing and fresh water thawing method was found to be effective. The muscle structure of the sample thawed after contact freezing was almost the sample after contact freezing was almost the same as that of raw sample.

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Molecular Cloning and Characterization of Salt-inducible Aldolase from Salicornia herbacea (퉁퉁마디로부터 염에 의하여 유도되는 Aldolase 유전자의 분리 및 발현분석)

  • Cha, Joon-Yung;Netty Ermawati;Kim, Soon-Gil;Lee, Jeung-Joo;Lim, Chae-Oh;Chung, Woo-Sik;Lee, Kon-Ho;Son, Dae-Young
    • Journal of Plant Biotechnology
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    • v.30 no.4
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    • pp.323-328
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    • 2003
  • Soil salinity is one of the most serious abiotic stresses limiting the productivity of agricultural crops. To cope with salt stress, plants respond with physiological, developmental and biochemical changes, including the synthesis of a number of proteins and the induction of gene expression. Salicornia herbacea is a halophytic plant that grows in salt marshes and on muddy seashores. In order to understand the biochemical and molecular mechanisms of salt tolerance in S. herbacea, we isolated several genes that involved in the salt tolerance by mRNA differential display. Here we report the cloning of a cDNA encoding fructose-1, 6-bisphosphate aldolase, named ShADL, which is 1293 bp long and contains an open reading frame consisted of 359 amino acids with calculated molecular mass of 39 kDa. ShADL protein showed 86% identity with Arabidopsis and 78% with aldolase of common ice plant. Northern blot analysis revealed that the transcript of ShADL gene was increased dramatically depending on the NaCl concentrations.

Elastic Wave Characteristics According to Cementation of Dissolved Salt (용해된 소금의 고결화에 따른 탄성파 특성)

  • Eom, Yong-Hun;Truong, Q. Hung;Byun, Yong-Hoon;Lee, Jong-Sub
    • Journal of the Korean Geotechnical Society
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    • v.25 no.5
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    • pp.75-86
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    • 2009
  • Salt, one of the most common soluble materials in engineering soil, may have an effect on mechanical behaviors of soils under its cementation process. In order to investigate this natural phenomenon, non-soluble material by using glass beads is mixed with salt electrolyte and cemented by using oven to evaporate water. Three different sizes of glass bead particles, 0.26, 0.5, and 1.29 mm, with different salt concentration, 0, 0.1, 0.2, 0.5, 1.0, and 2.0M, are explored by using P- and S-waves, excited by bender elements and piezo disk elemets, respectively. The velocities of the P-wave and S-wave of the particulate medium cemented by salt show three stages with the degree of saturation: 1) S-wave velocities increase while P-wave velocities reduce with degree of saturation changing from 100% to 90%; 2) Both velocities are stable with degree of saturation varying from 90% to 10%; 3) The velocities change enormously when the specimens are nearly dry with degree of saturation from 10% to 0%. Besides, the resonance frequencies of S-wave show similar stages to the S-wave velocities. This study demonstrates meaningful trends of elastic wave characteristics of geo-materials according to the cementation of dissolved salt.