• 제목/요약/키워드: Enzyme treatment

검색결과 2,690건 처리시간 0.03초

효소처리한 도공지의 물성 관한 연구 (The Study of the Properties Coated Paper by the Enzyme Treatment)

  • 양이석;김창근;김병현
    • 한국인쇄학회지
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    • 제24권1호
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    • pp.59-66
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    • 2006
  • We studied on the effects of the enzyme treatment of pulp fiber on physical properties of coated paper were elucidated using four types of enzymes. The results of this study showed that the blank in which enzyme was not treated showed the highest $St{\ddot{o}}ckigt$ and Hurcules sizing degrees. And when the enzyme treated base paper was used for coating, the coated paper has average 5.7 % higher gloss and whiteness than when untreated base paper was used. Brightness showed 0.12 % higher results with the enzyme treated base papers than the blank while it is considered to show similar trends. Whiteness of coated paper was not influenced by the enzyme treatments but by the properties of coating color. Coated paper whose base paper was enzyme treated showed improved roughness while smoothness of those samples except the ${\beta}$-Glucosidase treated one was relatively low due to the high fines content. Also the coated paper whose base paper was not enzyme treated showed high porosity.

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적포도(Muscat Bailey A)주 발효 중 효소 처리에 의한 Phenol류 추출 및 색도 변화에 관한 연구 (Studies on the Changes in the Extraction of Phenolics and Color Characteristics by the Enzyme Treatment of Red Grape(Muscat Bailey A) Wine during Fermentation)

  • 이정윤;채수규
    • 한국식품영양학회지
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    • 제23권3호
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    • pp.324-331
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    • 2010
  • 국내산 MBA(Muscat Bailey A) 포도의 효소 처리에 의한 발효 과정 중 총 페놀 추출량을 비롯하여 Hunter's L, a, b값, hue 및 color intensity 등의 색도 변화를 측정하여 비교 분석하였다. MBA 포도의 발효 10일째에 총 페놀 함량은 $1,352.8{\pm}37.8\;mg/{\ell}$이었으며, Pectinex와 Viscozyme의 효소 처리로 각각 14.5%(p<0.05) 및 3.8% 증가하여 Pectinex 처리가 Viscozyme 처리보다 페놀류 추출 효과가 있는 것으로 나타났다. MBA 포도의 발효 10일째 L, a, b값은 각각 7.4, 9.2, -1.2였으며, Pectinex 효소 처리의 경우는 7.0, 10.6, -0.8로 약간의 차이를 나타내었으나(p<0.05), Viscozyme 효소 처리의 경우는 7.2, 9.8, -1.1로 효소 처리에 따른 차이가 없었다. MBA 포도의 발효 10일째 hue 값과 color intensity는 각각 0.492와 0.785를 나타내었으며, Pectinex 효소 처리의 경우는 0.460과 0.881로 hue값은 다소 감소하였고 color intensity는 약간 증가하였으나(p<0.05), Viscozyme 효소 처리의 경우는 0.482와 0.805로 효소 처리에 따른 차이가 없었다.

Diagnosis and Management of Patients with Mucopolysaccharidoses in Malaysia

  • Ngu, Lock-Hock
    • Journal of mucopolysaccharidosis and rare diseases
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    • 제4권1호
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    • pp.11-13
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    • 2018
  • In Malaysia, diagnosis and treatment of patients with mucopolysaccharidoses (MPS) is mainly localized at Hospital Kuala Lumpur, which is the national referral center for rare diseases. To date there are 83 patients diagnosed with MPS in our center, with MPS II being the commonest. The Malaysian National Medicines Policy second edition has a specific section on the orphan drugs which includes recombinant human enzyme for enzyme replacement therapy (ERT) in MPS. So far, National Pharmaceutical Regulatory Agency Malaysia has approved recombinant human enzyme for MPS types I (Loranidase), II (idursulfase), IVA (elosulfase alfa), and VI (Galsufase). Access to Idursulfase beta (another recombinant human enzyme for MPS II) and vestronidase alfa-vjbk (MPS VII) required special authorization on named patient basic. Currently there are 25 patients receiving ERT, 70% of the funding are from Ministry of Health (MOH), the remaining 30% are from various charitable funds and humanitarian programs. Thirteen newly diagnosed patients have to queue for an additional fund. Four patients have been treated with Hematopoietic stem cell transplant. MOH has also published guidelines regarding the patient selection criteria for ERT and treatment monitoring schedule.

Treatment of Microencapsulated ${\beta}$- Galactosidase with Ozone : Effect on Enzyme and Microorganism

  • Kwak, H.S.;Lee, J.B.;Ahn, J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권4호
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    • pp.596-601
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    • 2002
  • The present study was designed to examine the effect of ozone treatment in microencapsulated ${\beta}$-galactosidase on inactivation of the enzyme and sterilization of microorganism. The efficiency was the highest as 78.4% when the ratio of polyglycerol monostearate (PGMS) was 15:1. Activities of lactase remaining outside the capsule were affected by ozone treatment. With the increase of ozone concentration and duration of ozone treatment, the activity reduced significantly. In sensory aspect, with 2% microcapsule addition, no significant difference in sweetness was found compared with a market milk during 12 d storage. Above result indicated that the additional washing process of lactase was not necessary to inactivate the residual enzyme. In a subsequent study, the vegetative cells of microorganisms were completely killed with 10 ppm for 10 min treatment by ozone. The present study provides evidence that ozone treatment can be used as an inactivation and a sterilization process. In addition, these results suggest that acceptable milk products containing lactase microcapsules made by PGMS can be prepared with ozone treatment.

Effect of enzyme treatment on the DSC and TGA behavior of silkworm powder

  • Jo, You-Young;Bae, Sung Min;Kim, HyunBok;Lee, Kwang Gill;Kweon, HaeYong
    • International Journal of Industrial Entomology and Biomaterials
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    • 제37권1호
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    • pp.29-32
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    • 2018
  • Silkworm powder's thermal property is an important factor for its storage and marketing. This study examined the effect of edible enzyme on the thermal property of silkworm powder using Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). Results of the TGA showed that regardless of the enzyme treatment, the weight loss patterns of silkworm powders exhibited 3 step thermal property deterioration at approximately $80^{\circ}C$, $280^{\circ}C$, and $480^{\circ}C$ due to water evaporation and thermal degradation. This is similar with the DSC which also resulted in all samples two endothermic peaks attributed also to water evaporation and thermal degradation. These results indicated that the use of enzyme such as protease and cellulase might not affect significantly the thermal properties of silkworm powder.

Effects of scalp treatment using combinational massage technique on human physiology

  • Oh, Gang-Su;Kim, Sung-Nam
    • 패션비즈니스
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    • 제12권3호
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    • pp.87-98
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    • 2008
  • The purposes of this study are to measure physiological reactions of human body according to the scalp treatment, a popularized service in beauty care industry and propose efficient ways of scalp treatment. To meet the goals, total 30 applicants without any medical history(5 males and 5 females in 20's, 30's and 40's respectively) were informed on the purpose of experiment hereof and were investigated and received a 30-minute scalp treatment, which combines standardized scalp treatment massage technique proposed by KAT and ITF with another massage technique operated in the beauty salon run by the author of this paper. 5ml of blood samples were taken from each subject before and after the scalp treatment respectively and the blood sample was divided into 3 different tubes for analysis: 1) 2 ml for blood cell analysis, 2) 2ml for enzyme activity measurement, 3) 1ml for hormone level reading. In order to determine effects of scalp treatment on ALP, GOT, GPT, ${\gamma}-GTP$, WBC, RBC, Hb, Hct, Platelet, MCV, MCH and MCHC, all collected data were used for measuring respective levels of these blood substances by means of enzyme reaction measurement, enzyme activity measurement and automated hematology analyzer. Then, all measured data were analyzed through paired t-test using SPSS WIN 11.5. As a result, the scalp treatment is associated with improving hepatic function, facilitating blood circulation and helping blood coagulation and hemostasis in a effective way. Therefore, it would be necessary to conduct further studies on this subject related to anemia in the future.

중성 셀룰라제 처리에 의한 데님의 물성 (Effect of Cellulase on Characteristics of Denim)

  • 김지연;송화순;김혜림
    • 한국의류산업학회지
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    • 제11권3호
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    • pp.469-473
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    • 2009
  • Recently, eco-friendly processing has been focused in the textile industry in order to reduce environmental pollutions. Applications of enzyme technology to the textile industry are an example of more environmentally compatible processes. However, there is not enough quantity of referring to denim fabric subjected to enzymatic treatment. In this study, depending on pH, temperature, cellulase concentration, and treatment time, the weight loss of denim fabrics was examined. Characteristics of enzyme-treated fabrics were measured by tearing strength, stiffness, and K/S values. The effect of a non-ionic surfactant (Triton X-100) on characteristics of the enzyme-treated fabrics was evaluated. The cellulase treatment condition on the cotton fabric were optimized to pH 6.0, $50^{\circ}C$, 1%(o.w.f.), and 60minutes. Characteristics of denim fabrics by cellulase treatment in the presence of Triton X-100 did not improve because Triton-X inhibited the activity of enzyme.

나피의 탈모율에 미치는 단백질 분해 효소의 효과 (Effect of Proteolytic Enzyme on the Unhairing Degree of Pelt)

  • 이종석;서교택;김영채;문세기
    • 공업화학
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    • 제10권5호
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    • pp.635-638
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    • 1999
  • 구두용 나피(裸皮)의 물성에 가장 큰 영향을 주는 탈모 공정에 단백질 분해 효소가 미치는 영향을 연구하였다. 나피의 물성을 기존의 방법 대신 전자 현미경을 이용하여 측정하는 새로운 방법을 제시하였다. 단백질 분해 효소를 이용한 바이오-테크 처리가 화학적 처리보다 탈모율에서 약간 저하되나 나피의 물성과 환경 측면에서 우수한 것으로 나타났다. 특히, 화학적 처리시 발생하는 유해 가스인 $H_{2}S$가 전혀 발생치 않았으며, 탈모 공정의 폐수 처리시 COD 및 BOD 값이 각각 939 mg/L와 5268 mg/L로 상당량 감소하여 기존의 처리 방법들보다 환경 친화적인 방법임을 확인할 수 있었다. 따라서, 탈모 공정은 $29{\sim}30^{\circ}C$의 온도 범위에서 단백질 분해 효소인 0.4~0.5% Lupin LE-10을 첨가하여 20시간 처리하는 것이 적합하였다.

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일부 폐경 후 여성에서 골밀도와 항산화효소 활성에 대한 대두 이소플라본 보충 효과 (Effect of Soy Isoflavone Supplementation on the Bone Mineral Density and Antioxidant Enzyme Activity in Postmenopausal Women)

  • 이행신;이다홍;김미현;승정자
    • Journal of Nutrition and Health
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    • 제39권8호
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    • pp.801-807
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    • 2006
  • To elucidate the effect of soy isoflavone supplementation on bone mineral density and antioxidant enzyme activity in 60 postmenopausal women residing in Iksan area were recruited. There were 31 participants in the treatment group and 29 in the control group. The treatment group consumed isoflavone extract capsules daily (which contained 90 mg of soy isoflavones) for 12 weeks. The study compared before and after isoflavone intake in the following areas. Physical examination, diet survey, bone mineral density (BMD) and antioxidant enzyme activity (superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) and total antioxidant capacity (TA)). The average age of the treatment group was 64.6 years and that of the control group was 66.5 years. There were no significant differences between the two groups in terms of height, weight and body mass index. Both groups maintained a regular diet pattern in terms of their average daily nutrient intake. There were no significant differences between the treatment group (23.3 mg) and the control group (24.0 mg) in terms of daily isoflavone intake based on diet. Isoflavone supplementation of 12 weeks did not resulted in any significant changes in BMD or parameters of antioxidant enzyme activity, implying the necessity of more intensive intervention for a substantial change. In conclusion, this study revealed that antioxidant enzyme activity holds a significant relationship with the bone mineral density in postmenopausal women and further systematic research on dose and period of isoflavone supplementation is needed to clearify the positive effect of isoflavone on BMD and/or blood antioxidant capacity in postmenopausal women.

종류별 효소 처리에 따른 돈피 콜라겐의 품질특성 (Quality Characteristics of Pork Skin Collagen with Enzyme Treatments)

  • 전기홍;황윤선;김영붕;최윤상;김병목;김동욱;장애라;최진영
    • 한국식품영양학회지
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    • 제29권5호
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    • pp.760-766
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    • 2016
  • To increase the collagen recovery rate, bromelain (PB) and a microbial enzyme (PM) were used to treat to pork skin with single agent or combinations. The quality of collagen from the pork skin was evaluated by enzymatic treatments. The highest results for the solid contents and pork skin recovery rate obtained with the microbial-enzyme-bromelain mixtue (PMB) were 13.60% and 18.05% respectively. The result also showed that the color was affected by different types of enzyme treatments. Although PM treatment showed the highest result in the protein content of 251.30 mg/100 g, PMB treatment was the highest in the test of collagen content of 37.73 g/100 g among the treatments. However bands of the pork skin were detected widely at 130 kDa and 170 kDa ranges in SDS-PAGE. The band of PB treatment showed at the range of below 17 kDa, changed into a smaller molecular weight. The collagen content test of the pork skin by the treatments, collagen contents with combination treatment of pork skin with PMB (0.5%) resulted the highest in 43.76 g/100 g. Also the fat content at the above treatment was reduced to 11.12% compared to the other treatments. With these results of this experiment, we conclude that the enzymatic treatments were effective for the processing property of pork skin like enhancing the yield of collagen.