• 한국작물학회지
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• 제47권2호
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• pp.75-79
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• 2002

This study conducted to elucidate the change of the cation content (Na$^{+}$, $K^{+}$, and $Ca^{2+}$), the L-proline content, and the sugar and starch content in the stems, roots, and leaves of three cultivars of the 30 days old seedling soybeans (Glycine max L. cv. Danwonkong, Hwang-keumkong, and Kwangankong) after 100 mM NaCl stress containing 1/2 Hoaglands nutrient solution in the sand culture. The reduction of the dry matter weight after 100 mM NaCl treatment among cultivars was higher in the order of Kwangankong, Danwonkong, and Hwang-keumkong. The highest reduction of the dry matter weight was occurred at the roots among three parts of plant. The Na$^{+}$ content increased with NaCl treatment in overall and specially greatly increased in roots and stems. The $K^{+}$ and $Ca^{2+}$ content decreased with NaCl treatment at the roots and stems. The $K^{+}$ content, however, at the leaves increased in all three cultivars with the NaCl treatment. The L-proline content with NaCl stress increased greatly. The increment of the L-proline content at the stems and roots of Hwangkeumkong was lower than that of other two cultivars, K wangankong and Danwonkong. The sugar content decreased with NaCl treatment at the stems and leaves. The starch content also decreased at the stems and leaves with NaCl treatment.aCl treatment.

• Applied Biological Chemistry
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• 제35권6호
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• pp.437-442
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• 1992

우리나라에서 널리 보급되어 재배되고 있는 감자 품종인 수미(秀美, Superior) 및 남작(男爵, Irish Cobbler) 두 품종을 원료로 potato chip을 제조할 때 품질에 직접적으로 영향을 미치는 Maillard 반응의 중요한 요인으로 작용하는 환원당의 함량을 감소시키기 위하여 화학적 저해제로 알려진 $CaCl_2$와 NaCl을 사용하여 감자를 전처리한 후 환원당 함량을 분석하고 potato chip을 제조하여 색상을 비교한 결과 NaCl로 침지 처리한 경우에는 환원당의 감소가 $15{\sim}30%$에 불과하고 chip의 색상도 좋지 못하였다. 그러나 NaCl 침지 가열처리의 경우에는 환원당의 감소가 평균 40%였으며, 특히 두 품종 모두 0.08% NaCl 용액으로 5분 및 7분간 처리한 것이 좋은 효과를 나타내었다. $CaCl_2$ 용액에 침지처리한 것은 NaCl 용액으로 처리한 것보다 효과는 있었으나 색상이 고르지 못하고 부분적으로 갈색화되었다. $CaCl_2$용액에 침지 가열처리한 것이 가장 좋은 결과를 나타내어 환원당의 감소가 약 50% 정도였으며 그 중에서도 0.05% 및 0.07% $CaCl_2$ 용액에 5분 및 7분간 처리한 것이 환원당의 감소는 물론 chip의 색상도 가장 좋았다. 침지시 상온에서 처리하는 것보다는 $72{\sim}82^{\circ}$ 에서 NaCl 용액 보다는 $CaCl_2$ 용액으로 blanching하는 것이 가장 효과적이었다.

• Biomolecules & Therapeutics
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• 제12권2호
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• pp.74-78
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• 2004

Paecilomyces tenuipes, a caterpillar fungus, contains many health-promoting ingredients. Recent reports indicate that consumption of P. tenuipes helps reducing blood sugar content for diabetes. Mechanism for reduction in the circulatory sugar content, however, still remains least understood. Methanolic extraction of P. tenuipes (MPT) was prepared and acetoxyscirpendiol (ASD) was subsequently purified limn MPT. Glucose transporter-1 (GLUT-1) was expressed in the Xenopus oocytes and the effect of MPT or ASD on the expressed GLUT-1 was analyzed according to the uptake of 2-dideoxy-D-glucose (2-DOG). MPT was shown to inhibit GLUT-1 activity significant1y compared to the non-treated control. In the presence of ASD and its derivatives, GLUT-1 activity was greatly inhibited in a dose-dependent manner. Among ASD and its derivatives, AS-1 showed most significant inhibition. Taken together, these results strongly indicate that ASD in P. tenuipes may serve as a functional substance in lowering blood sugar in the circulatory system. ASD and its derivatives can be utilized as inhibitors of GLUT-1.

• 펄프종이기술
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• 제42권2호
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• pp.88-94
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• 2010

Cattail (Typha L.) was used as a raw material for producing both bio-ethanol and pulp for papermaking at the same time. Pretreatments of cattail stems and leaves with acid ($H_2SO_4$) and alkali (NaOH) in three different addition levels were studied before soda pulping. The acid pretreatment gave reducing sugar of 15.2% of initial weight, but alkali pretreatment close to 1%. Soda pulping of the pretreated cattail gave 3% reduction in pulp yield and less bonding properties in paper; however, refining of the pulp from the pretreated cattail with alkali restored their fiber bondings up to that of the pulp from no-pretreated cattail at equivalent freeness.

• Food Science and Biotechnology
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• 제15권4호
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• pp.555-558
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• 2006

The chemical reduction of Pseudomonas syringae subsp. phaseolicola alginates produces neutral polymers of D-mannose and L-gulose in source specific ratios. L-Gulose was highly sensitive to degradation by 1N HCl at $100^{\circ}C$. As hydrolysis time increased, gulose recovery decreased to 22% after 4 hr, whereas 98% of the D-mannose was recovered under the same conditions. Thin layer chromatography showed the formation of a second product upon L-gulose acid hydrolysis. This new product had a rate of flow (Rf) value of 0.58, identical to that of 1,6 anhydro-${\beta}$-D-mannopyranose and very close to that of 1,6 anhydro-${\beta}$-D-glucopyranose (Rf=0.60). Because of the difference in acid sensitivity between L-gulose and D-mannose, normal acid hydrolytic techniques applied to reduced alginates produces erroneous mannuronic acid (M): guluronic acid (G) ratio's unless one accounts for the differential rates of destruction of each sugar.

• 한국미생물·생명공학회지
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• 제13권1호
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• pp.27-31
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• 1985

WISH, FL 및 HEp-2 세포주중 분석용 세포주를 선정하기 위하여 VSV에 대한 sensitivity와 세포성장능을 조사하였다. 그 결과 HEp-2 세포주가 가장 유리한 것으로 판별되었으며, 이 세포주를 이용하여 초기 세포농도 $5{\times}10^5cells/ml$과 200TCI-$D_{50}$의 VSV활성을 사용하여 22~24hr내에 인터페론 역가 분석을 할 수 있는 방법을 개발하였으며, 이 방법에 대한 신뢰성을 조사한 결과 CPE-reading method와 유사한 신뢰도를 보여주었다.

• 대한한방내과학회지
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• 제40권5호
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• pp.929-937
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• 2019

A patients with quadriplegia and a history of pancreatectomy was administered Socheongryong-tang to reduce sputum. The patient's sputum decreased, but a sudden increase in blood sugar was observed. Ephedra is known to stimulate the sympathetic nerves to increase the blood pressure and blood sugar, but in healthy people, changes in blood sugar are not significant due to corrections by hormone regulation. However, this case suggests that ephedra can cause significant blood sugar increases in patients who undergo pancreatectomy or who have diabetes mellitus. Even though ephedra is highlighted for its usefulness in sputum reduction and in weight control, it should be carefully prescribed to patients with diabetes.

• 식물병연구
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• 제30권1호
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• pp.34-49
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• 2024

The development of sustainable smut management techniques requires an understanding of the impacts of smut on sugarcane growth and the relationships between smut intensity and meteorological variables, varieties, and crop types. Thus, assessments were made with the objectives to 1) determine the effect of smut on the above-ground growth of sugarcane, and 2) quantify the association of smut with weather variables, varieties and crop types. The effect of smut on above-ground growth was assessed in six fields planted with NCo 334 (wider coverage) having 6 months of age in Fincha and Metehara fields in 2021. Data on above-ground growth were taken from 20 randomly selected smut-affected and healthy stools from each field. Besides, 6 years' data (2015 to 2021) on the numbers of smut-affected stools and smut whips of 79 fields were collected. Furthermore, 10 years' (2011 to 2021) weather data were acquired from the sugar plantations. The results demonstrated reduction in the above-ground growth of sugarcane in the range of 18.39% and 73.42% due to smut. In addition, weather variables explained about 68.48% and 66.58% of the variability in the number of smut-affected stools and whips respectively. Smut intensity increased with crop types for susceptible varieties. The tight association between the smut epidemic and crop types, varieties, and weather, implied that these parameters must be carefully considered in management decisions. Continuous monitoring of smut disease, meteorological variables, varieties, and crop types in all the sugarcane plantations could be done as a part of integrated smut management in the future.

• 한국미생물·생명공학회지
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• 제25권6호
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• pp.552-559
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• 1997

Fe (III) impurities in clay could be microbially removed by inhabitant dissimilatory Fe (III) reducing microorganisms. Insoluble Fe (III) in clay particles was leached out as soluble reductive form, Fe (II). The microorganisms removed from 10 to 45% of the initial Fe (III) when each sugar was supplemented to be in ranges of 1 - 5 % (w/w; sugar/clay). The microorganisms reduced 2.1 - 12.8 mol of Fe (III) per 100 mol of carbon in sugars metabolized when sugars such as glucose, maltose, and sucrose were used as sole carbon source. Bacillus sp. IRB-W and Pseudomonas sp. IRB-Y were isolated from the enrichment culture of the clay. The isolates were considered to participate in metabolizing organic compounds to fermentative intermediates with relatively little Fe (III) reduction at initial Fe (III) reduction process. By the microbial treatment, the whiteness of the clay was increased form 63.20 to 79.64, whereas the redness was obviously decreased form 13.47 to 3.55. This treatment did not cause any unfavorable modifications in mineralogical compositions of the clay.

• Journal of Nutrition and Health
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• 제48권1호
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• pp.81-93
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• 2015

본 연구는 제주지역 초등학교 5학년 학생 701명을 대상으로 2009년 4월부터 6월까지 24시간 회상법을 이용하여 1일 식이조사를 통한 총당류 섭취량을 추정하였으며 그 결과는 다음과 같다. 1. 조사대상자의 1일 열량섭취량은 1,629.8 kcal, 1일 총 당류섭취량은 남학생 53.1 g, 여학생 57.6 g으로 남녀 평균 55.3 g이었다. 2. 끼니별 1일 총당류섭취량은 간식에서 34.9 g (63.1%)으로 가장 많이 섭취하였으며, 아침, 점심, 저녁 식사에서 섭취하는 양은 각각 6.3 g, 6.9 g, 7.2 g이었다. 3. 식품군별로는 우유류 (17.04 g), 곡류 (12.79 g), 과일류 (9.40 g), 당류 (7.30 g)에서 섭취하는 당 함량이 높았다. 4. 조리법별 총당류 섭취량은 유제품류 (15.08 g), 빵 과자류 (6.4 g), 음료류 (5.5 g), 과일류 (5.1 g), 빙과류 (4.8 g)의 순이었고, 주식과 부식류에서는 면류 (5.1 g), 볶음류 (2.3 g), 튀김류 (1.4 g), 일품요리류 (1.4 g), 조림류 (1.1 g)의 순이었다. 후식류에서 서당 섭취량이 높은 음식은 빵 과자류 (4.1 g, 6.4 g), 음료류 (2.5 g, 1.4 g), 빙과류 (3.4 g, 4.4 g)이었다. 주식과 부식류에서 서당 섭취량이 높은 음식은 면류 (2.0 g, 4.1 g), 볶음류 (1.0 g, 1.1 g) 등 이었다. 5. 1일 총당류섭취량 중 천연당은 25.8 g, 첨가당은 23.3 g, 혼합당은 6.2 g으로 1일 총당류 섭취량의 42.1%가 첨가당에서 섭취되었다. 6. 총열량섭취량 중 당류에서 얻어지는 열량비율이 20% 이상인 고당류섭취군이 20% 미만 저당류섭취군에 비해 철분, 아연, 니아신 섭취가 유의적으로 더 낮았다. 7. 단맛선호군은 단맛저선호군보다 열량, 탄수화물 섭취량, 그리고 총당류섭취량이 유의적으로 높았다. 이상의 결과를 종합해 보면 제주지역 초등학교 5학년 남녀학생들의 총당류섭취량은 1일 평균 55.4 g으로, 주로 간식에서 섭취하는 비율이 높았다. 따라서 초등학생들의 총 당류 섭취량 통제를 위해서는 올바른 간식 선택과 당 저감화 관련 영양교육이 필요하다고 사료된다.