Discrimination of cultivars and cultivation origins from the sepals of dry persimmon using FT-IR spectroscopy combined with multivariate analysis = FT-IR 스펙트럼 데이터의 다변량 통계분석을 이용한 곶감의 원산지 및 품종 식별

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Title
Discrimination of cultivars and cultivation origins from the sepals of dry persimmon using FT-IR spectroscopy combined with multivariate analysis = FT-IR 스펙트럼 데이터의 다변량 통계분석을 이용한 곶감의 원산지 및 품종 식별
Author(s)
Suel Hye Hur; Suk Weon Kim; B W Min
Bibliographic Citation
Korean Journal of Food Science & Technology, vol. 47, no. 1, pp. 20-26
Publication Year
2015
Abstract
This study aimed to establish a rapid system for discriminating the cultivation origins and cultivars of dry persimmons, using metabolite fingerprinting by Fourier transform infrared (FT-IR) spectroscopy combined with multivariate analysis. Whole-cell extracts from the sepals of four Korean cultivars and two different Chinese dry persimmons were subjected to FT-IR spectroscopy. Principle component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) of the FT-IR spectral data successfully discriminated six dry persimmons into two groups depending on their cultivation origins. Principal component loading values showed that the 1750-1420 and 1190-950 cm-1 regions of the FT-IR spectra were significantly important for the discrimination of cultivation origins. The accuracy of prediction of the cultivation origins and cultivars by PLS regression was 100% (p<0.01) and 85.9% (p<0.05), respectively. These results clearly show that metabolic fingerprinting of FT-IR spectra can be applied for rapid discrimination of the cultivation origins and cultivars of commercial dry persimmons.
Keyword
Dry persimmonFourier transformation infrared (FT-IR) spectroscopyPartial least squares discriminant analysis (PLS-DA)Principal component analysis (PCA)Sepal
ISSN
0367-6293
Publisher
South Korea
DOI
http://dx.doi.org/10.9721/KJFST.2015.47.1.20
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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