• Title/Summary/Keyword: malt

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Changes in Solubility of Barley Arabinoxylans during Malting (보리의 제맥과정 중 Arabinoxylan의 용해성 변화)

  • Eom, Hye-Seon;Lee, Young-Tack
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.12
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    • pp.1684-1687
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    • 2008
  • Barleys at different malting stages from steeping to 5 day germination were investigated for soluble, insoluble, and total arabinoxylans at three different extraction temperatures of 21, 45 and $65^{\circ}C$. Slight differences in total arabinoxylan levels in barleys were observed during malting stages. During germination, initially insoluble arabinoxylan could be more soluble, thus the solubilized arabinoxylan tended to increase until 4 day germination. The proportion of soluble arabinoxylan in germinating barleys was increased from ambient temp ($21^{\circ}C$) to 45 or $65^{\circ}C$. Two barley malt samples were selected at two different stages of germination, well-modified malt germinated for 96 hr and poorly-modified malt for 60 hr, and mashed isothermally at 45, 55, 65, or $75^{\circ}C$ for 2 hr. Increasing temperature over 45 to $75^{\circ}C$ slightly decreased the amount of arabinoxylan solubilized in wort. Arabinoxylan content of wort from well-modified malt was not significantly different from poorly- modified malt at all mashing temperatures.

Production of Extracellular Laccase by Lignindegrading Basidiomycete Coriolus versicolor CV3 (리그닌 분해균 Coriolus versicolor CV3에 의한 Laccase의 생산)

  • Kwon, Soon Kyung;Yoon, Min Ho;Choi, Woo Young
    • Korean Journal of Agricultural Science
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    • v.18 no.2
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    • pp.157-163
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    • 1991
  • The cultural conditions in shake flasks were investigated under which maximum amounts of laccase produced by a strain of white-rot fungus Coriolus versicolor CV3. The enzyme yields on potato-malt extract medium by the fungus were higher than on other media consisted of onion infusion or malt extract, with maximum activity of $1.50unit/m{\ell}$ culture or 119.5 unit/g mycelium at 11 days of incubation. Maximum yields of laccase and growth were obtained by supplementation of yeast extract or potassium nitrate to the potato-malt extract medium. Addition of 2.5-xylidine at $4{\times}10^{-4}M$ concentration to the medium induced the laccase production 3.1-fold higher than the basal level, while the mycelial growth was somewhat repressed. The pH optimum for the growth and laccase formation by the fungus was between pH 4 to 4.5.

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The Case Report of Malignant Lymphoma on the Submandibular Gland (턱밑샘에 발생한 악성 림프종의 치험례)

  • Bea, Chung Sang;Lee, Nae Ho;Yang, Kyung Moo
    • Archives of Plastic Surgery
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    • v.34 no.2
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    • pp.261-264
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    • 2007
  • Purpose: Extranodal marginal zone B cell lymphoma of MALT type represents approximately 8% of non-Hodgkin's lymphomas and this lymphoma is present in extranodal sites. Although the presentation of this lymphomain in stomach is usually associated with H. pylori infection in 95% of cases, MALT lymphoma found in soft tissue has been reported very rarely in the field of plastic surgery. We report a case of MALT lymphoma in the submandibular gland without any involvement of other organs such as the stomach. Methods: A 49-year-old man complained of a huge neck mass sized about $10{\times}12cm$. It started about 2 years ago and grew rapidly for the late 6 months. It was of hard nature with erythematous skin overlying it. Under the diagnosis of possible malignant lymphoma or sarcoma, radical resection was performed and the defect was reconstructed using transverse rectus abdominis musculocutaneous free flap. Results: The mass was well demarcated from the normal tissue, $11{\times}10.5{\times}10cm$ in size and whitish-gray color. Immunohistochemical analysis demonstrated that the tumor cells were LCA(+), CD20(+), CD3(-) and CD5(-). The tumor was diagnosed as extranodal marginal zone B cell lymphoma. The patient was treated with prophylactic radiation therapy after surgery, there was no complication for 1 year. Conclusion: We reported that very rare form of MALT lymphoma in 49-year-old male patient was experienced with clinical characteristics, histologic features and references.

Sjogren′s Syndrome Combined with MALT Lymphoma (MALT 림프종을 수반한 쉐그렌 증후군)

  • Han Won-Jeong;Cha Sang-Yun;Kim Eun-Kyung
    • Imaging Science in Dentistry
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    • v.30 no.2
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    • pp.144-148
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    • 2000
  • Sjogren's syndrome is a chronic inflammatory disease that predominantly affects salivary, lacrimal and other exocrine glands. We report a case of Sjogren's syndrome combined with MALT (mucose associated lymphoid tissue) lymphoma which occured in the parotid gland. A 57-year-old female with the complaint of painful swelling and lymph node enlargement was referred to our department. Sialograms of both parotid glands showed globular collections of contrast material uniformly distributed throughout the parotid gland. Salivary scintigraphy showed decreased uptake of the parotid gland. CT scan showed larger, slightly more dense parotid gland than normal and honeycomb glandular appearance. Also, It showed discrete, slightly more enhanced round mass in the left parotid gland. Histopathological finding showed replacement of salivary gland parenchyma with dense small lymphocytic infiltration having the feature of epimyoepithelial islands. Kappa light chain restriction of interglandular plasma cell could be seen.

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Isolation of Nematode Destroying Fungi (Nematode에 기생(寄生)하는 진균(眞菌)의 분리(分離))

  • Yoo, Kwan-Hi;Choi, Young-Hi;Lee, Hyung-Hoan
    • The Korean Journal of Mycology
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    • v.9 no.4
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    • pp.193-197
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    • 1981
  • Nematode destroying-fungi from ginseng field were isolated and then identified on 2% wateragar and malt extract agar media. 1. Six strains of Arthrobotrys sp. and three strains of Harposporium sp. were isolated and identified. 2. Arthrobotrys sp. formed trapping apparatus when they were cultured with Nematode and appeared to be destroying fungi. 3. Harposporium sp. appeared to be endoparasitic fungi. 4. Both Arthrobotrys sp. and Harposporium sp. were grown well on nutrient agar and malt extract agar.

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Effect of Anaerobic Treatment on Carbohydrate-Hydrolytic Enzyme Activities and Free Amino Acid Contents in Barley Malt

  • Yun, Song-Joong;Choi, Kyeong-Gu;Kim, Jin-Key
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.43 no.1
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    • pp.19-22
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    • 1998
  • Effects of acute anoxia on carbohydrate hydrolytic enzyme activities and free amino acid contents in malt were examined. Malts were prepared with barley grains germinated for 7 days which contained the highest levels of amylolytic and(1-3,1-4)-$\beta$-glucanase activities. $\alpha$-Amylase and $\beta$-amylase activities in malts were not significantly affected by anoxia for 5 or 10 h.(1-3,1-4)-$\beta$-Glucanase activity, however, decreased about 7 to 10% by anoxia for 5 or 10 h. Alanine and $\gamma$-aminobutyric acid content changed drastically. Alanine contents in malts increased by 2.2- and 2-fold, and $\gamma$-aminobutyric acid contents by 1.4- and 1.9-fold under anoxia for 5 and 10 h, respectively.

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Deterioration of Fibers and Their Products by Fungi (Part II) -Damage of Cellulosic Fabrics by Fungi- (사상균에 의한 섬유 및 섬유제품의 소화에 관하여 (제 2포) -사상균에 의한 면직물의 손해도-)

  • 김효은
    • Journal of the Korean Home Economics Association
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    • v.19 no.4
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    • pp.9-15
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    • 1981
  • damages of cotton cloth and characteristics of fabroid degradation were studied by Chaetomium globosum and Aspergillus niger which presupposed as powerful erosive fungi to cellulose fiber by means of tensile strength. The results obtained are as follows: 1. the growth(rate) of fungi in malt extract agar was superior to potato agar for two weeks. 2. Chaetomium globosum showed mostly severe damage t the cotton cloth in malt extract agar media at pH 4.5. 3. Tensile strength was reduced with time by Aspergillus niger-coenzyme and Chaetomium globosum-coenzyme reaction. In comparison with Chaetomium globosum and Aspergillus niger, the former weaken tensile strength about 15.8% and the latter enfeebled 10.0% after 124 hours. 4. after 30 days the breeding of fungi in pH 4.5 malt extract agar media, critical damage of cotton cloth was observe, I. e., 92.4% damage by chaetomium globosum and 74.9% lose by aspergillus nige respectively.

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Isolation and Characterization of a Volume-Expanding Yeast from Sunchang Gochujang (순창고추장의 팽창 원인 효모의 분리 및 특성)

  • 이경자
    • The Korean Journal of Food And Nutrition
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    • v.12 no.4
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    • pp.339-343
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    • 1999
  • A strain of gas-producing and volume-expanding yeast was isolated from Gochujang made in Sunchang by the traditional ways and was identified to be a Saccharomyces sp. This yeast was detected only in malt among the several ingrediants of Gochujang which means that the volume-expanding yeast comes into Gochujang at the time of making products through malt one of the major ingredients. However boiling of the malt-saccharified rice could not prevent the occurrence of the volume-expanding yeast in Gochuj-ang. This yeast was contained in the range of 5.67∼7.75 log10CFU/g in products made and aged between 1 monty and 3 year in Sunchang area.

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Endoscopic features aiding the diagnosis of gastric mucosa-associated lymphoid tissue lymphoma

  • Park, Byung Sam;Lee, Si Hyung
    • Journal of Yeungnam Medical Science
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    • v.36 no.2
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    • pp.85-91
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    • 2019
  • The incidence of gastric mucosa-associated lymphoid tissue (MALT) lymphoma is increasing worldwide, but the diagnosis is difficult. Most patients are asymptomatic or complain of nonspecific gastrointestinal symptoms. As the endoscopic features of gastric MALT lymphoma are variable and nonspecific, the possibility of this condition may be overlooked during esophagogastroduodenoscopy, and it remain undiagnosed. Therefore, this condition needs to be considered when an abnormal mucosa is observed during this procedure. Biopsy performed during endoscopy is the primary diagnostic test, but false negative results are possible; large numbers of samples should be collected from both normal and abnormal mucosae. Endoscopic ultrasonography is useful to assess the depth of invasion and to predict the treatment response. After treatment, follow-up tests are required every 3 months until complete remission is achieved, and annually thereafter. Early diagnosis of gastric MALT lymphoma is difficult, and its diagnosis and follow-up require wide experience and competent endoscopic technique.

Ocular adnexal mucosa-associated lymphoid tissue lymphoma: a narrative review

  • Chung, Hyun Uk;Son, Jun Hyuk
    • Journal of Yeungnam Medical Science
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    • v.39 no.1
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    • pp.3-11
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    • 2022
  • Lymphoma is the most common primary tumor of the orbit, accounting for 55% of all orbital malignancies. When divided into histopathological subtypes, extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) comprises the largest proportion. Clinical manifestations are unspecific, but in patients with slow-growing painless orbital mass, or red conjunctival lesion suggestive of 'salmon patch', ocular adnexa lymphoma (OAL) should be suspected. Although the pathogenetic mechanism of ocular adnexal MALT lymphoma (OAML) is not yet fully understood, the relationship between OAML and Chlamydia psittaci has been hypothesized recently, similar to that between gastric MALT lymphoma and Helicobacter pylori. This suggests a new treatment option for OAML; bacterial eradication therapy with systemic antibiotics. Several other treatment methods for OAML have been introduced, but no treatment guidelines have been established yet. In this article, we summarize the current knowledge on the clinical features, pathogenesis, diagnostic methods, therapeutic strategies, and prognosis of OAML.