초록

본 연구에서는 1-kestose, raffinose, nystose 및 $1^{F}-{\beta}-fructofura-nosylnystose$ 등 4종 올리고당 분석을 위하여 기울기용매가 가능 한 증기화광산란검출기를 사용하여 이동상 조성, 유속 등 최적 조건을 설정하였다. 설정한 분석조건을 이용하여 표준액을 농도별로 희석(50, 100, 200, 400, 800${\mu}g/mL$)하여 검량선을 quadratic curve로 작성한 결과 상관계수는 1-kestose(1.0000), raffinose(0.9999), nystose(1.0000), $1^{F}-{\beta}-fructofuranosylnystose$(1.0000)으로 나타났다. 또한 분석조건의 재현성을 측정하기 위하여 혼합표준액 200${\mu}g/mL$을 5회 주입한 면적 값의 RSD는 1-kestose(1.47), raffinose(8.98), nystose(0.77), $1^{F}-{\beta}-fructofuranosylnystose$(2.02)으로 나타났다. 또한 사용된 시료의 프락토올리고당의 측정된 함량 결정계수에 대한 t-검정결과 모든 표준당에 대해 상관이 유의(p<0.05)함을 알 수 있어 본 HPLC-ELSD방법에 의한 정량이 타당한 것으로 나타났다. 본 방법을 통하여 fructooligosacchrides 및 raffinose분석에 유용한 것으로 사료된다.

Abstract

A method was developed for the determination of fructooligosaccharides and raffinose contents in infant formula. The samples were extracted and analyzed by liquid chromatography equipped with carbohydrate column and evaporative light scattering detector. The mobile phase used for the gradient mode was water-acetonitrile, at a flow rate of 1.0mL/min. The method showed a mean recovery of 95-99%, the relative standard deviation obtained in the precision study was 0.774-8.982%, the quantification and detection limits were 25-50mg/L.

주제어

#fructooligosaccharide   #raffinose   #infant formula   #HPLC   #evaporative light scattering detector  

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이 논문을 인용한 문헌 (1)

1. Park, Ji-Sung ; Park, Jae-Woo ; Cho, Byung-Hoon ; Song, Sung-Ok ; Wee, Sung-Hwan ; Oh, Soon-Min ; Kim, Jin-Man 2013. "The Analysis for Calcium and Fructooligosaccharides Contents in Nutrients Fortified Dairy Products" Korean journal for food science of animal resources = 한국축산식품학회지, 33(6): 781~786  원문보기 상세보기