• Title/Summary/Keyword: HMP

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Comparative Biological Properties of Prunus davidiana Fruits according to Harvest Month (산복사나무 열매의 수확시기별 생리활성물질 함량 비교)

  • Oh, Kyoung-Joo;Kim, Min-Jeong;Han, Jung-Soon;Ji, Eun-Hee;Kim, Ae-Jung
    • The Korean Journal of Food And Nutrition
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    • v.28 no.4
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    • pp.643-649
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    • 2015
  • This study was performed to determine the optimal month of harvest between May and July for wild peach (Prunus davidiana) by comparison of functional materials. The general composition, amino acid and vitamin (A, C, and E) content, and antioxidant activity were determined. With respect to the general composition of wild peach according to the month of harvest, wild peach harvested in May (HMP) and July (HJP) contained mostly carbohydrate, the contents of which amounted to 77.37 g/100 g and 77.92 g/100 g, respectively. The total amino acid content of HMP and HJP were 675.29 mg% and 573.25 mg%, respectively. Regarding the vitamin contents, vitamin A (retinol), E (${\alpha}-tocopherol$) and C in HMP were higher than those in HJP. The total polyphenol content of HMP (218.37 mg TAE/g) was higher than that of HJP (71.45 mg TAE/g). The total flavonoid content of HMP (64.95 mg RE/g) was also higher than that of HJP (32.67 mg RE/g). Moreover, the DPPH and ABTS radical scavenging activities ($IC_{50}$) were higher in HMP ($137.18{\mu}g/mL$ and $157.15{\mu}g/mL$) than those in HJP ($160.10 {\mu}g/mL$ and $186.01 {\mu}g/mL$), meaning that the former produces better antioxidant effects. It can be concluded that wild peach harvested in May contained higher functional materials such as vitamins and amino acids and had a higher antioxidant effect, than wild peach harvested in july.

Toward The Fecal Microbiome Project (분변 미생물군집 프로젝트)

  • Unno, Tatsuya
    • Korean Journal of Microbiology
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    • v.49 no.4
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    • pp.415-418
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    • 2013
  • Since the development of the next generation sequencing (NGS) technology, 16S rRNA gene sequencing has become a major tool for microbial community analysis. Recently, human microbiome project (HMP) has been completed to identify microbes associated with human health and diseases. HMP achieved characterization of several diseases caused by bacteria, especially the ones in human gut. While human intestinal bacteria have been well characterized, little have been studied about other animal intestinal bacteria. In this study, we surveyed diversity of livestock animal fecal microbiota and discuss importance of studying fecal microbiota. Here, we report the initiation of the fecal microbiome project in South Korea.

Necessity for Revising Efficacy of Herbal Medicines Based on Low Back Pain Prescription (요통 처방을 통하여 본 한약제제 효능 개정의 필요성)

  • Jang, Soobin;Go, Ho-Yeon;Jang, Bo-Hyoung;Song, Yun-Kyung;Shin, Yong-Cheol;Ko, Seong-Gyu
    • Journal of Society of Preventive Korean Medicine
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    • v.19 no.1
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    • pp.83-93
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    • 2015
  • Objective : There are many documents that explain efficacy of herbal medicine products (HMP), however, explanations on efficacy are not consistent with the clinical use. The objective of this study is to identify the differences between herbal medicines used in clinics and Korean Medicine literatures. The disease was restricted in low back pain (LBP). Method : In order to investigate HMP for the treatment of LBP, we selected five Korean medical documents as reference and searched for key words related to LBP. Five databases were Information on Herbal prescription published by Ministry of Food and Drug Safety, 56 Herbal Medicines covered with Health Insurance, Guideline for prescribing herbal medicines announced by Ministry Health & Welfare, Explanation on Herbal Medicines published by Korean Pharmaceutical Association, website of Korea Pharmaceutical Information Center (http://www.health.kr/). The keywords were 'low back pain', 'lumbar', 'pain', 'myalgia', 'neuralgia', 'arthralgia', 'arthroneuralgia', and 'sciatica'. We also utilized the result of retrospective cross-sectional study in five university hospitals to investigate HMP used in practice for LBP. Results : From five databases, the number of searched HMP was 25, 12, 40, 12 and 38 respectively and 83 remained after removing duplications. There were 43 kinds of HMP used in clinical practice and only 20 (46.51 %) were included in one or more databases. Conclusion : This study suggests the necessity for reorganizing efficacy of herbal medicine. Standardizing explanation on herbal medicine should reflect the clinical conditions in further study.

Analysis of Beauvericin and Unusual Enniatins Co-Produced by Fusarium oxysporum FB1501 (KFCC 11363P)

  • Song Hyuk-Hwan;Ahn Joong-Hoon;Lim Yoong-Ho;Lee Chan
    • Journal of Microbiology and Biotechnology
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    • v.16 no.7
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    • pp.1111-1119
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    • 2006
  • Beauvericins and enniatins are cyclohexadepsipeptides exhibiting various biological activities on animal systems, including humans. Fusarium oxysporum FB1501 (KFCC 11363P) that produces four different cyclohexadepsipeptides was isolated from soil in Korea and the structures of the four cyclohexadepsipeptides elucidated by HPLC, MS, IR, and NMR analyses. The molecular weights for compounds 1,2,3, and 4 were determined to be 654.5, 784.5, 668.6, and 682.5, respectively, on the basis of ESI-MS measurements. The IR spectra for all the compounds exhibited absorptions for ester $(1,733-1,743\;cm^{-1})$ and amide $(1,649-1,655\;cm^{-1})$ bonds that were very similar to those for beauvericin and enniatins with ester and amide absorptions. The results of the NMR analysis $(^{1}H,\;^{13}C,\;135-DEPT,\;COSY,\;HMQC,\;and\;HMBC;\;in\;COCl_{3})$ revealed that compounds 1,3, and 4 consisted of $_{L}-N-methyl\;valine$ (N-MeVal), $_{D}-{\alpha}-hydroxyisovaleic\;acid$ (Hiv), and 2-hydroxy-3-methylpentanoic acid (Hmp) residues (compound 1: three N-MeVal residues, two Hiv residues, and one Hmp residue; compound 3: three N-MeVal residues, one Hiv, and two Hmp residues; compound 4: three N-MeVal residues and three Hmp residues). Therefore, the compounds were identified as enniatin H (compound 1), enniatin I (compound 3), and enniatin MK1688 (compound 4). Compound 2 was analyzed as beauvericin according to 1D and 2D NMR analyses. This study is the first report related to the co-production of beauvericin with other unusual enniatins, such as enniatin H, enniatin I, and enniatin MK1688, by Fusarium oxysporum.

Changes in Pectin of Satsuma Mandarin during Ripening and Storage (온주밀감의 성숙과 저장 중 펙틴 함량의 변화)

  • 강문장;고경수;고정삼
    • Food Science and Preservation
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    • v.7 no.1
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    • pp.38-43
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    • 2000
  • Changes in firmness and pectin contents during maturation and sotrage of Stsuma mandarin (Citrus Unshiu Marc. var. miyagawa) were investigated. Firmness of fruits was decreased quickly from 1,176.8g-force to 503.6g-dorce. Satsuma mandarin was stored at 3$^{\circ}C$ and 85%${\pm}$5% relative humidity. Firmness were decreased from 538.9g-force to 336.9g-force during storage. Alcohol-insoluble solid(AIS) of peel and flesh were decreased quickly from 27.04g/100g to 12.30g/100g, and from 2.67g/100g to 1.91g/100g during maturation of fruits. During storage of fruits, AIS of peel was decreased from 14.32g/100g to 12.06g/100g . During maturation of fruits, water soluble pectin (WSP) of peel were increased from 420.82mg/100g to 601.62mg/100g as wet basis. Hexametaphosphate soluble pectin (HMP) was also increased from 450.17mg/100g to 577/53mg/100g. hydrochloricacid soluble pectin (HSP) was decreased from 1938.30 mg/100g to 695.14mg/100g. During storage of fruits, HMP and HSP of peel was decreased from 507.82mg/100g to 695.14mg/100g. During storage of fruits, HMP and HSP of peel was decreased from 527.82mg/100g to 275.47mg/100g , and from 672.28mg/100g to 351.36mg/100g, respectively. WSP of peel was increased from 543.70mg/100g to 584.31mg/100g. Total pectin substance (TPS) of peel was decreased from 2809.79 mg/100g to 1874.29mg/100g during maturation, and from 1723.80mg/100g to 1211.14mg/100g during storage, respectively. Composition ratio of pectin was in order of WSP>HSP>HMP.

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Quantitative Analysis of Pyridostigmine Bromide in Tablets by HPLC (피리도스티그민 정제의 함량 측정을 위한 HPLC 분석법)

  • Phi, Taek-San;Cho, Young;Sok, Dae-Eun;Cha, Seung-Hee;Chung, Yun-Su
    • Journal of Pharmaceutical Investigation
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    • v.21 no.3
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    • pp.171-177
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    • 1991
  • A reverse-phase, ion-pair high performance liquid chromatographic (HPLC) method for the simultaneous quantative determination of pyridostigmine and its hydrolytic product, 3-hydroxy-N-methylpyridinium (HMP), is descrihed, The assay of pyridostigmine and HMP was linear in the range of amount from 24 to 60 mg/tablet and from 2.4 to 12.0 mg/tablet, respectively, with coefficient of variation (C.V.) of 0.05-0.12% (n=7) and 0.25-0.52% (n=5), respectively, and applicable conveniently even in the case of the mixture of pyridostigmine and HMP. Meanwhile, the conventional UV method gave inaccurate results for the aged pyridostigmine tablets. In the extraction of pyridostigmine from tablets prior to be assayed by HPLC, methanol was found to be more effective than ethanol or distilled water. Multiple extraction (four times) with methanol resulted in the full recovery of pyridostigmine, whereas ethanol gave 95% recovery even after four times extraction. Based on these results. the present method would be very useful for the accurate determination of pyridostigmine in the aged pyridostigmine tablets.

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SELECTION OF THE SENSORS FOR THE ENVIRONMENTAL CONTROL SYSTEMS OF PIG-HOUSING IN TEMPERATE ZONE

  • Chang, Dong-Il;Chang, Hong-Hee
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.1126-1135
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    • 1996
  • This study was conducted to select the sensors for measuring temperature, relative humidity, and air velocity among the major environmental factors affecting the pig productivity as a part of the study for the optimum production system model development of pig-housing. The study results are summarized as the follows : Two sensors , HMP233L and HANI, were tested for measuring temperature and relative humidity , Test results were analyzed by the statistical methods. And the sensor, HMP233L was selected as a proper sensor for temperature sand relative humidity measurement . An air velocity sensor was tested. Test results showed that its accuracy was low and incongruent for the air velocity measurement when it was lower than 4m/s.

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분자 드래그 회전자 형상에 따른 복합분자펌프의 배기성능에 관한 실험적 연구

  • Hwang Yeong-Gyu;Gwon Myeong-Geun
    • Proceedings of the Korean Society Of Semiconductor Equipment Technology
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    • 2006.05a
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    • pp.202-205
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    • 2006
  • Recently, high vacuum pumps are widely used in the semi-conduction and liquid-crystal display ( LCD ) process. The composite-type high vacuum pumps are widely used in the various processes. In this study, the pumping performance of composite-type molecular pumps has been investigated experimentally. The experimented pumps are a compound molecular pump ( CMP ) and hybrid molecular pump ( HMP ). The CMP consists with helical-type drag pump, at lower part, and with turbomolecular pump ( TMP ), at upper part. The HMP consists with disk-type drag pump, at lower part, and with TMP, at upper part. The experiments are performed in the outlet pressure of $0.2\;{\sim}\;533\;Pa$. We have measured the ultimate pressure, compression ratio, and pumping speed

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Carbohydrate catabolism in cellulolytic strains of cellulomonas, pseudomonas and nocardia (Cellulose 분해호기성 세균의 당 대사 경로)

  • 김병홍
    • Korean Journal of Microbiology
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    • v.25 no.1
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    • pp.28-33
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    • 1987
  • Celluloytic bacteria, -Gram positive, Gram negative and actionmycetes-were used to study their catabolic pathways of carbohydrate. It was found that Embden-Meyerhof-Parnas(EMP) pathway and hexose monophosphate(MHP) shunt were operated in Cellulomonase sp. CS1-1, C. flavigena, and Pseudomonas fluorescens subsp. cellulosa when they were cultured in a glucose containing medium, whilst gluconate was catabolised mainly via Entner-Doudoroff(ED) pathway, and to some extend through HMP shunt. Enzymes of ED pathway in the orgamisms were induced by gluconate. On the other hand Nocardia cellulans catabolised glucose and gluconate via EMP pathway and HMP shunt. The growth rate of N. Cellulans on gluconate were much slower than that on glucose.

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