• 제목/요약/키워드: Essential minerals

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A Study on the Damage Degree of Hair Dye Treatments and the Impact of Heavy Metals (트리트먼트(Treatment)를 이용한 모발 염색이 손상도와 중금속 함량에 미치는 영향)

  • Lee, Tae-Sook;Kim, Younghee
    • Journal of Digital Convergence
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    • v.15 no.10
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    • pp.551-557
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    • 2017
  • Hair beauty treatments that can express individuality have increased and diversified. However, their repetitive use has also brought about hair damage. To reduce such damage, the importance of hair treatments when receiving chemotherapy has magnified greatly. In this study, the hair (normal hair, NH) of 5 people in their 20s has been collected and observed with SEM before dyeing (NH), after dyeing (DH) and after dyed and treated (DTH) to measure the hair's morphological damage and mineral content. SEM observation results revealed that, in DTH, a cuticle-like arrangement appears almost uniformly, the hair settles, the lines are smooth, and the damage degree is low. Regarding mineral content, the concentration of minerals was generally balanced. However, in the observation of toxic minerals and minerals found in large amounts, the concentration of Ba, Na, Ca, and Mg was higher than the balance range in NH, DH, and DTH.

Formulation and Shelf Life of a Nutritional Supplement for Undernourished Elderly People

  • Ziegler, Fabiane La Flor;Faria, Jose de Assis;Sgarbieri, Valdemiro Carlos
    • Food Science and Biotechnology
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    • v.17 no.2
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    • pp.241-246
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    • 2008
  • A nutritional supplement was developed aiming at correcting the most common nutrient and caloric deficiencies encountered in elderly people (${\geq}60$ years old). The protein source was a mixture of whey protein isolates (WPI) and bovine collagen hydrolysate (BCH) with high nutritional and functional qualities making up 12% of the formulation. The carbohydrate fraction was composed of sucrose, inulin (soluble fiber), and fructo-oligosaccharide (prebiotic). The most commonly deficient essential minerals and vitamins were also included. Acceptance of the product was good according to both an elderly panel and a laboratory panel composing of both sexes and various ages. The stability of the formulations was evaluated and the estimated shelf life at room temperature (ca. $27^{\circ}C$) was approximately 4 months.

The Characteristic of Natural Dyeing with Mulberry Leaf and Coffee Powder using Zinc Mordant (아연 매염제를 이용한 뽕잎, 커피 천연염재의 염색특성)

  • Lee, Jonggwan;Ko, Jaehoon
    • Textile Coloration and Finishing
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    • v.28 no.2
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    • pp.118-123
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    • 2016
  • The use of natural organic dyes obtained from renewable resources such as plants and trees has the potential for not only preserving petrochemicals but also all-endangered environment for coming next generations. In spite of inferior fastness, natural dyes can be employed in the colouration of natural as well as synthetic fibers. Recently, the potentiality of using natural dyes in colouration with additional UV-protection and antimicrobial properties has been reported. This study is aimed to investigate the effect of Zinc compounds compared to another metallic compounds as mordants on the dyeing properties of natural dye extracted from mulberry leaves and coffee. In this study, the results showed Zinc compounds was expose that is more similar than other mordants in washing fastness through a repeated experiment. Also, Zinc is the environmental impact is less material compared with other mordants, essential edibility minerals ingredient that is necessary in human body.

Incineration of Waste Water Sludge and Coal In a Circulating Fluidized Bed Combustor (순환유동층에서 폐수슬러지와 석탄의 혼소 특성)

  • Bae, Dal-Hee;Shun, Do-Won;Park, Jae-Hyeon;Ryu, Ho-Jung;Park, Do-Hyun
    • 한국연소학회:학술대회논문집
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    • 2004.06a
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    • pp.165-172
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    • 2004
  • Co-incineration of coal and wastewater sludge was r;erfonn:rl in a O.lMWth bench scale circulating fluidized bed combustor(CFBC) Sludge was received from a wastewater treatment plant in a dye industrial complex in Busan. Metropolis. Moisture content of received sludge was 80%. Coal and sludge mixture was prepared with weight ratio of 90/10, 85/15 and 80/20. Co-combustion characteristics of the coal and sludge mixture demonstrated stable combustion conditions. Component analysis, incineration characteristics, boiler performance was measured before and after the test and application for commercial 59MWth CFBC boiler. The release of hazardous components such as $SO_2$ and Cl was suppressed by the presence of inherent minerals of Ca, Na, K in coal and sludge mixture. Pre-drying was not essential but it was recommended for the benefits of manageability of sludge.

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Cholesterol-Lowering Effect and Anticancer Activity of Kimchi and Kimchi Ingredients (김치와 김치재료의 콜레스테롤 저하 및 항암효과)

  • 이재준;정영기
    • Journal of Life Science
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    • v.9 no.6
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    • pp.743-752
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    • 1999
  • The purpose of the paper is to explore the current knowledge on the nutritional evaluation, cholesterol-lowering effect and antitumor activity of kimchi and its ingredients(Korean cabbage, garlic, red pepper powder, ginger and onion). Kimchi contains high contents of nutrients such as vitamins(ascorbic acid, $\beta$-carotene and vitamin B complex), minerals(calcium, potassium, iron and phosphorous), essential amino acids and dietary fiber. Kimch also contains high levels of lactic acid bacteria, allicin, capsaicin, organic acid, phenol compounds, flavonoid and sulfur compounds. The dietary fiber and lactic acid bacteria isolated from kimchi are effective in improving intestinal microflora of human. Isoluble dietary fiber shows anticancer activity, but soluble dietary fiber shows hypocholesterolemic effect. Lactic acid bacteria isolated from kimchi acts as a hypocholesterolemic or anticancer agent. A major ingredient of kimchi is mainly cruciferous and allium family vegetables, which were also reported to prevent cancer and atherosclerosis. It is suggested that kimchi is important not only as one of the traditional fermented Korean food but also as therapeutic agent for carcinogenesis and hypercholesterolemic state.

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Petro-mineralogical and Solubility Characterization in Soluble Rocks (용해성 암석의 용식 진전에 대한 암석-광물학적 특성 연구)

  • 정의진;윤운상;여상진;김정환;이근병;노영욱
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.03a
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    • pp.253-260
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    • 2002
  • Chemical weathering processes related with mineralogical characters and ground water condition are very essential engineering problems in soluble rock masses. Detailed geological mapping were performed and 8 samples were collected from the 2 formations including various rock faces to deduce the possibility of the limestone cavity formation and their mechanism. Petrological descriptions and various petro-mineralogical experiments such as XRD analysis, clay mineral analysis, absorptivity test, impurity analysis were conducted to evaluate the cavity making processes. Laboratory solubility test for rock specimen were also carried out under the strong acid (pH=1) condition. From the experimental data and geological mapping data, it is found that the formation of limestone cavities in limestones are strongly related with geological structures such as beddings, cleavages and the contents of impurities rather than CaCO$_3$contents. In case of dolomites, rock textures, grain size, amounts and types of clay minerals as well as geological structures are major controlling factors of cavity forming processes

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Effects of Consolidation Mode on Engineering Properties of Geomaterials (압밀조건이 지반재료의 공학적 성질에 미치는 영향)

  • Kim Dae-Kyu
    • Proceedings of the KAIS Fall Conference
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    • 2004.06a
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    • pp.39-41
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    • 2004
  • The engineering properties of the geomaterial, an essential material in construction engineering, are significantly influenced by consolidation mode, which is called inherent anisotropy. Speically cohesive soils feature the anisotropy mainly due to their flate-like minerals and chemical interactions. In this research, an experimental study was conducted for the investigation of the anisoropy. Three isotropic and four anisotropic consolidated-undrained triaxial compression tests were performed for the cohesive specimens with various stress ratios of consolidation. The effects of the consolidation mode for cohesive soils were presented and investigated in stress-strain behavior, pore water pressure, and undrained shear strength of the test results.

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An Animal-Industrial Review on Phytic Acid and Phytase (Phytic Acid와 Phytase에 관한 동물산업적 고찰)

  • 양시용;김창원;강창원
    • Journal of Animal Environmental Science
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    • v.7 no.2
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    • pp.83-102
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    • 2001
  • Phytic acid (myo-inositol hexaphosphate or IP6) is the major storage form of phosphorus in cereals and legumes, representing 18 to 88% of the total phosphorus. Phytate form of phosphorus is not readily utilized by monogastric animals and this result causes pollution problem by phosporus released in areas of intensive livestock production. The interaction between phytic acid and essential dietary minerals, protein, or vitamins is considered to be one of the primary factors limiting the nutritional values of cereals and legunes in monogastric animals. Attempts have been made to hydrolyze dietary phytic acid by phytases to improve the feed quality and to decrease the amount of phosphorus excreted by animals. Phytase(myo-inositol hexakisphosphate phosphohydrolase) hydrolyzes phytic acid to myo-inositol and phosphoric acid. Two types of phytases are known: 3-phytase (EC 3.1.3.8) and 6-phytase (EC 3.1.3.26), indicating the intial attack to the susceptable phosphoester bond. Because of its great industrial importance, there is ongoing interest in isolating new bacterial strains producing novel and efficient phytases.

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Critical evaluation of a Nigerian sub-bituminous coal potential for energy derivation

  • Odeh, Andrew O.
    • Advances in Energy Research
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    • v.4 no.3
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    • pp.203-211
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    • 2016
  • A good understanding of the chemical composition and structural characteristics of a carbonaceous material is essential in conversion processes. Understanding how the composition and structural changes influence the burning behaviour of coal is important when assessing a coal's potential for utilization. To explore the potentials of a typical Nigerian coal, both conventional and advanced analytical techniques such as proximate analysis, ultimate analysis, calorific value, surface area analyser, SEM, FTIR, XRD and SAXS were employed. The results obtained from these characterizations agree favourable well with a typical South African coal that is of enormous contribution to the gross domestic product (GDP) of the nation economy.

A comprehensive review on clay swelling and illitization of smectite in natural subsurface formations and engineered barrier systems

  • Lotanna Ohazuruike;Kyung Jae Lee
    • Nuclear Engineering and Technology
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    • v.55 no.4
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    • pp.1495-1506
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    • 2023
  • For the safe disposal of high-level radioactive waste using Engineered Barrier Systems (EBS), bentonite buffer is used by its high swelling capability and low hydraulic conductivity. When the bentonite buffer is contacted to heated pore water containing ions by radioactive decay, chemical alterations of minerals such as illitization reaction occur. Illitization of bentonite indicates the alteration of expandable smectite into non-expandable illite, which threatens the stability and integrity of EBS. This study intends to provide a thorough review on the information underlying in the illitization of bentonite, by covering basic clay mineralogy, smectite expansion, mechanisms and observation of illitization, and illitization in EBS. Since understanding of smectite illitization is crucial for securing the safety and integrity of nuclear waste disposal systems using bentonite buffer, this thorough review study is expected to provide essential and concise information for the preventive EBS design.