• Title/Summary/Keyword: FAME analysis

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Development of User-Friendly Modeling Software and Its Application in Processed Meat Products

  • Lee, Heeyoung;Lee, Panho;Lee, Soomin;Kim, Sejeong;Lee, Jeeyeon;Ha, Jimyeong;Choi, Yukyung;Oh, Hyemin;Yoon, Yohan
    • Journal of Food Hygiene and Safety
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    • v.33 no.3
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    • pp.157-161
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    • 2018
  • The objective of this study was to develop software to predict the kinetic behavior and the probability of foodborne bacterial growth on processed meat products. It is designed for rapid application by non-specialists in predictive microbiology. The software, named Foodborne bacteria Animal product Modeling Equipment (FAME), was developed using Javascript and HTML. FAME consists of a kinetic model and a probabilistic model, and it can be used to predict bacterial growth pattern and probability. In addition, validation and editing of model equation are available in FAME. The data used by the software were constructed with 5,400 frankfurter samples for the kinetic model and 345,600 samples for the probabilistic model using a variety of combinations including atmospheric conditions, temperature, NaCl concentrations and $NaNO_2$ concentrations. Using FAME, users can select the concentrations of NaCl and $NaNO_2$ meat products as well as storage conditions (atmosphere and temperature). The software displays bacterial growth patterns and growth probabilities, which facilitate the determination of optimal safety conditions for meat products. FAME is useful in predicting bacterial kinetic behavior and growth probability, especially for quick application, and is designed for use by non-specialists in predictive microbiology.

Analysis of Bacterial Community Structure in Bulk Soil, Rhizosphere Soil, and Root Samples of Hot Pepper Plants Using FAME and 16S rDNA Clone Libraries

  • Kim, Jong-Shik;Kwon, Soon-Wo;Jordan, Fiona;Ryu, Jin-Chang
    • Journal of Microbiology and Biotechnology
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    • v.13 no.2
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    • pp.236-242
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    • 2003
  • A culture-independent and -dependent survey of the bacterial community structure in the rhizosphere and soil samples from hot pepper plants was conducted using 16S rDNA clone library and FAME analyses. Out of the 78 clones sequenced, 56% belonged to Proteobacteria, 4% to high G+C Gram- positive group, 3% to Cytophyga-Flexibacter-Bacreroides, and 32% could not be grouped with any known taxonomic division. Among the 127 FAME isolates identified, 66% belonged to low G+C Gram-positive bacteria (Baciilus spp.) and 26% to high G+C Gram-positive bacteria. In a cluster analysis, the results for both methods were found to be strikingly dissimilar. The current study is the first comparative study of FAME and 165 rDNA clonal analyses performed on the same set of soil, rhizosphere soil, and root samples.

Comparison of Cellular Fatty Acid Composition and Genotypic Analysis of Bifidobacterium longum MK-G7 with Commercial Bifidobacteria Strains

  • Jung, Hoo-Kil;Kim, Eung-Ryool;Ji, Geun-Eog;Park, Jong-Hyun;Cha, Seong-Kwan;Juhn, Suk-Lak
    • Journal of Microbiology and Biotechnology
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    • v.10 no.2
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    • pp.143-146
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    • 2000
  • This study was conducted to compare the cellular fatty acid composition and genotypic analysis of Bifidobacterium longum MK-G7 originated from Koreans with other commercial type strains of bifidobacteria. The cellular fatty acid of Bif. longum MK-G7 was shown to be composed of $C_{160FAME},C_{181\;c18DMA},C_{18.1\;CIS9\; FAME},C_{14.0FAME},C_{19\;0cye9,10 DMA},Feature7(C_{17.2 FAME), and Feature 10(C_{181\; Cll/t9/t6 FAME}$. Bif. longum MK-G7 showed 99.9% homology and the highest relatedness with Bif. longum ATCC 15707 type strain. Both Bif. longum MK-G7 and Bif. longum ATCC 15707 showed 153 bp products on RAPD (randomly amplified polymorphic DNA) analysis, however, they showed quite different band patterns on PFGE (pulsed-field gel electrophoresis) analysis. Consequently, our present study showed that Bif. longum MK-G7 was different from any commercial type strains of Bif. longum tested.

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Bacterial Community Variations in Hot Pepper-Sown Soil Using FAME Analysis as an Indicator of Soil Quality

  • Kim, Jong-Shik;Weon, Hang-Yeon;Kwon, Soon-Wo;Ryu, Jin-Chang
    • Journal of Microbiology and Biotechnology
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    • v.13 no.2
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    • pp.251-255
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    • 2003
  • The bacterial compositions of seven hot-pepper sown soil were compared in this study. From the 624 isolates, 95 species and 49 genera were identified by fatty acid methyl ester analysis (FAME). The FAME results of seven soil showed two distinct clusters for aerobic and Gram-negative bacteria in the high productivity and monoculture soil samples. While Arthrobacter ($17\%$), Kocuria ($11\%$), Pseudomonas ($8\%$), and Bacillus ($8\%$) were predominant among bacteria which were cultured on heterotrophic (YG) agar medium, Pseudomonas ($56\%$), Stenotrophomonas ($16\%$), and Burkholderia ($8\%$) were predominant on crystal violet agar medium. Shannon Weaver indices (H) indicated that colonies obtained from heterotrophic agar medium (3.1) were found to be more diverse than those obtained from the crystal violet media (1.9). The results suggest that FAME analysis may be a potential indicator for of soil quality.

A Study on the Excellent Operation of the "Korea Baseball Hall of Fame" Based on Baseball Records (야구기록 활용에 기반한 '한국야구명예의전당' 운영 방안 연구)

  • Choi, Tae-Suk;Yim, Jin-Hee
    • Journal of Korean Society of Archives and Records Management
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    • v.16 no.3
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    • pp.157-177
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    • 2016
  • This study proposes an effective direction for operating the "Korea Baseball of Fame" based on baseball records. To clarify problems, a literature review on the case analysis of the "Hall of Fame" of the United States and Japan, an assortment and management of Korean baseball records, and a consultation with officials who work in the baseball industry were progressed. In conclusion, this study suggested building an archive database to operate the "Korea Baseball Hall of Fame" effectively. First, archives will be collected, and then managed and utilized at the "Korea Baseball Hall of Fame." Second, to preserve the memories of baseball heroes, an oral archive will be constructed. Third, baseball records will be assorted and stored in a database.

Linkage Between Biodegradation of Polycyclic Aromatic Hydrocarbons and Phospholipid Profiles in Soil Isolates

  • Nam, Kyoung-Phile;Moon, Hee-Sun;Kim, Jae-Young;Kukor, Jerome-J.
    • Journal of Microbiology and Biotechnology
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    • v.12 no.1
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    • pp.77-83
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    • 2002
  • A bacterial consortium capable of utilizing a variety of polycyclic aromatic hydrocarbons has been isolated from a former manufactured gas plant site. The consortium consisted of four members including Arthrobacter sp., Burkholderia sp., Ochrobacterium sp., and Alcaligenes sp., which were identified and characterized by the patterns of fatty acid methyl esters (FAME analysis) and carbon source utilization (BIOLOG system). With the individual members, the biodegradation characteristics of aromatic hydrocarbons depending on different growth substrates were determined. FAME analyses demonstrated that microbial fatty acid profiles changed to significant extents in response to different carbon sources, and hence, such shift profiles may be informative to characterize the biodegradation potential of a bacterium or microbial community.

FAME Analysis to Monitor Impact of Organic Matter on Soil Bacterial Populations

  • Kim, Jong-Shik;Joo, Jin-Bee;Weon, Hang-Yeon;Kang, Chang-Seong;Lee, Si-Kyung;Yahng, Chahng-Sool
    • Journal of Microbiology and Biotechnology
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    • v.12 no.3
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    • pp.382-388
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    • 2002
  • In order to assess the effects of organic fertilizer on soil microbial community structure and diversity in the greenhouse fields, fatty acid methyl ester (FAME) was analyzed by the MIDI (Microbial ID, Inc., Newark, DE, U.S.A.) system and enumerations were performed. In relation to bacterial division of each sample, low GC Gram-positive bacteria were predominant among bacteria cultured on aerobic bacteria media. On the other hand, alpha subdivision was predominant on proteobacteria of control and OM (organic matter) 1 treated plot, and Flavobacterium spp. existed in OM2 plot on crystal violet media of all samples. Shannon-weaver Index (H) of OM1 plot varied most by 1.9 and 5.0 among bacteria cultured on aerobic bacteria media and crystal violet media, respectively. Our results revealed that addition of the organic wastes to soil led to a highly diverse microbial community, but the excessive amounts of organic and mineral fertilizer applied in the greenhouse fields produced excess nutrients in soil and led to simplification on bacterial populations.

Implementation of Mahalanobis-Taguchi System for the Election of Major League Baseball Hitters to the Hall of Fame (메이저리그 타자들의 명예의 전당 입성과 탈락에 대한 Mahalanobis-Taguchi System의 적용과 비교)

  • Kim, Su Whan;Park, Changsoon
    • The Korean Journal of Applied Statistics
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    • v.26 no.2
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    • pp.223-236
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    • 2013
  • Various statistical classification methods to predict election to the Major League Baseball hall of fame of are implemented and their accuracies are compared. Seventeen independent variables are selected from the data of candidates eligible for the hall of fame and well-known classification methods such as discriminant analysis and logistic regression as well as the recently proposed Mahalanobis-Taguchi system(MTS). The MTS showed a better performance than the others in classification accuracy because it is especially efficient in cases where multivariate data does not constitute directionally geographical groups according to attributes.

Biodiesel production using lipase producing bacteria isolated from button mushroom bed (양송이 배지에서 유래한 Lipase 생산균을 이용한 바이오디젤 생산)

  • Kim, Heon-Hee;Kim, Chan-Kyum;Han, Chang-Hoon;Lee, Chan-Jung;Kong, Won-Sik;Yoon, Min-Ho
    • Journal of Mushroom
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    • v.13 no.1
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    • pp.56-62
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    • 2015
  • A lipase producing bacterium was isolated from button mushroom bed, which showing high clear zone on agar media containing Tributyrin as the substrate. The strain was identified as Burkholderia cepacia by analysis of 16S rDNA gene sequence. Crude lipase (CL) was partially purified from 70% ammonium sulfate precipitation using the culture filtrate of B. cepacia. Immobilized lipases were prepared by cross-linking method with CL from B. cepacia and Novozyme lipase (NL) onto silanized Silica-gel as support. Residual activitiy of the immobilized CL (ICL) and immobilized NL (INL) was maintained upto 61% and 72%, respectively. Biodiesel (Fatty acid methyl ester, FAME) was recovered by transesterification and methanolysis of Canola oil using NaOH, CL and ICL as the catalysts to compare the composition of fatty acids and the yield of FAME. Total FAME content was NaOH $781mg\;L^{-1}$, CL $681mg\;L^{-1}$ and ICL $596mg\;L^{-1}$, in which the highest levels of FAME was observed to 50% oleic acid (C18:1) and 22% stearic acid (C18:0). In addition, the unsaturated FAME (C18:1, C18:2) decreased, while saturated FAME (C16:0, C18:0) increased according to increasing the reaction times with both CL and ICL, supporting CL possess both transesterification and interesterification activity. When reusability of ICL and INL was estimated by using the continuous reaction of 4 cycles, the activity of ICL and INL was respectively maintained 66% and 79% until the fourth reaction.

Synthesis of Biodiesel Components and Analysis of Their Fuel Characters (바이오디젤 구성성분 합성 및 연료특성 분석)

  • Lim, Young-Kwan;Jeong, Choong-Sub;Han, Kwan-Wook;Do, Jin-Woo
    • Tribology and Lubricants
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    • v.30 no.1
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    • pp.52-58
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    • 2014
  • Because food crops serve as the raw materials for biodiesel, the increasing use of biodiesel as an alternative fuel can lead to adverse effects such as food price inflation and may contribute to global starvation. To solve these problems, efforts are being made to explore various nonedible raw materials for producing biodiesel. Different raw materials impart different fuel characteristics to biodiesel. In this study, we synthesized pure fatty acid methyl ester (FAME), which is a biodiesel component, and then analyzed its fuel properties. The fuel properties of pure FAME would be useful in producing biodiesel from various new raw materials.