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    GC-MS/MS ์˜ targeted metabolite profiling์„ ์ด์šฉํ•œ ๊ฐ๊ทค๋ฅ˜ ๊ณผ์ผ์˜ ๋น„๊ต ๋Œ€์‚ฌ์ฒดํ•™

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    ํ•™์œ„๋…ผ๋ฌธ(์„์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :๋†์—…์ƒ๋ช…๊ณผํ•™๋Œ€ํ•™ ๋†์ƒ๋ช…๊ณตํ•™๋ถ€,2020. 2. ๊น€์ •ํ•œ.The purpose of this study was to isolate the flesh and peel of Miyamoto(Citrus unshiu Marcow), Hanlabong(Citrus hybrid Shiranuhi), Redhyang(Citrus hybrid Kanpei), Hwangkeumhyang(Citrus hybrid Beni Madonna), among citrus fruits, one of the most commonly consumed fruits in Korea, and then compare the metabolites with metabolomics, separately. Fruits were analyzed in GC-MS/MS using a derivatization method that improves and allows better separation. Based on the analyzed data, the primary screening was selected using score scatter plot of the Principal Component Analysis (PCA) and ANOVA, which is a statistical tool, and then more precisely using the Partial Least Squares Discriminant Analysis (PLS-DA). The substance which specified the sample of each citrus fruits were identified. For Miyamoto, n-acetylneuraminic acid, glucono-1,5-lactone and inositol in flesh, In addition methionine and tyramine in the skin were identified as specific substances. In case of Hallabong, gluconic acid, 2-deoxy-glucose and 4-hydroxyphenylpyruvic acid in flesh, o-acetylserine, pentadecanoic acid, hippuric acid in peel, tyramine, octopamine and coniferyl alcohol in the flesh of Hwangkeumhyang, and xamic acid, putrescine and xanthosinein the peel were identified as the specific substances. According to Redhyang adenine, 2-amino-octanoic acid and valproic acid were in flesh, cystathionine, spermidine and thymidine in the skin were identified.๋ณธ ์—ฐ๊ตฌ๋Š” ํ•œ๊ตญ์—์„œ ๋งŽ์ด ์†Œ๋น„๋˜๋Š” ๊ณผ์ผ ์ฆ ํ•˜๋‚˜์ธ ๊ฐ๊ทค๋ฅ˜ ์ค‘ ๋ฏธ์•ผ๋ชจํ† ๊ทค, ํ™ฉ๊ธˆํ–ฅ, ํ•œ๋ผ๋ด‰, ๋ ˆ๋“œํ–ฅ์˜ ๊ณผ์œก๊ณผ ๊ป์งˆ์„ ๋ถ„๋ฆฌํ•œ ํ›„, ๋Œ€์‚ฌ์ฒดํ•™ (metabolomics) ์„ ์ ์šฉํ•˜์—ฌ ๊ฐ๊ฐ ์ƒ์ฒด ๋Œ€์‚ฌ๋ฌผ์งˆ์„ ๋น„๊ต ํ•˜์˜€์œผ๋ฉฐ, ๋ถ„์„ ๊ฐ๋„๋ฅผ ํ–ฅ์ƒ ์‹œ์ผœ์ฃผ๊ณ , ๋” ๋‚˜์€ ๋ถ„๋ฆฌ๋ฅผ ํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ์œ ๋„์ฒดํ™” ๋ฐฉ๋ฒ•์„ ์ด์šฉํ•˜์—ฌ GC-MS/MS ์—์„œ ๋ถ„์„ํ•˜์˜€๋‹ค. ๋ถ„์„ํ•œ ์ž๋ฃŒ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ํ†ต๊ณ„ ๋„๊ตฌ์ธ Principal Component Analysis (PCA) ์˜ score scatter plot ๊ณผ ANOVA๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ 1์ฐจ ์ ์œผ๋กœ ์„ ๋ณ„ํ•ด ์ค€ ํ›„, Partial least squares Discriminant Analysis (PLS-DA) ๋ฅผ ์ด์šฉํ•˜์—ฌ ๋ณด๋‹ค ์„ธ๋ฐ€ํ•˜๊ฒŒ ๊ฐ๊ทค๋ฅ˜ ๊ฐ๊ฐ์˜ ์‹œ๋ฃŒ๋ฅผ ํŠน์ •ํ•˜๋Š” ๋ฌผ์งˆ์„ ํ™•์ธํ•˜์˜€๋‹ค. ๋ฏธ์•ผ๋ชจํ† ๊ทค์˜ ๊ฒฝ์šฐ ๊ณผ์œก์—์„œ n-acetylneuraminic acid, glucono-1,5-lactone ๊ทธ๋ฆฌ๊ณ  inositol, ๊ณผํ”ผ์˜ ๊ฒฝ์šฐ methionine๊ณผ tyramine๋“ค์ด ์ด ์‹œ๋ฃŒ๋ฅผ ํŠน์ •ํ•˜๋Š” ๋ฌผ์งˆ๋กœ ๋‚˜ํƒ€๋‚ฌ๊ณ . ํ•œ๋ผ๋ด‰์˜ ๊ฒฝ์šฐ ๊ณผ์œก์—์„œ gluconic acid, 2-deoxy-glucose ๊ทธ๋ฆฌ๊ณ  4-hydroxy-phenylpyruvic acid์ด ๊ณผํ”ผ์—์„œ o-acetylserine, pentadecanoic acid, hippuric acid ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ํ™ฉ๊ธˆํ–ฅ์˜ ๊ฒฝ์šฐ ๊ณผ์œก์—์„œ tyramine, octopamine ๊ทธ๋ฆฌ๊ณ  coniferyl alcohol์ด, ๊ณผํ”ผ์˜ ๊ฒฝ์šฐ xamic acid, putrescine, xanthosine๋“ฑ์ด ๋‹ค๋ฅธ ์‹œ๋ฃŒ์— ๋น„ํ•ด ๋งŽ์ด ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋ ˆ๋“œํ–ฅ์˜ ๊ฒฝ์šฐ ๊ณผ์œก์—์„œ adenine, 2-aminooctanoic acid and valproic acid, ๊ณผํ”ผ์—์„œ cystathionine, spermidine ๊ทธ๋ฆฌ๊ณ  thymidine์ด ์‹œ๋ฃŒ๋ฅผ ํŠน์ •ํ•˜๋Š” ๋ฌผ์งˆ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค.1.Introduction 2 2.Materials and Methods 4 Chemicals and reagents 4 Appartus 5 Samples 5 Sample preparation 14 Method validation 18 Analytical instruments and conditions 19 3.Results 37 4.Discussion 73 5.Conclusion 77 6.References 78 7.Abstract in Korean 80 8.Acknowledgements 82Maste
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