Verification of a non-destructive measurement method for β-cryptoxanthin in mid-late ripening citrus cultivars using visible and near-infrared spectroscopy

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  • Hisanaga Ayami
    Division of Citrus Research, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
  • Sakanaka Tatsuyuki
    Saika Technological Institute Foundation
  • Yoshioka Terutaka
    Kyushu-Okinawa Agricultural Research Center, National Agriculture and Food Research Organization (NARO)
  • Sugiura Minoru
    Division of Citrus Research, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO) Department of Food Science and Nutrition, Doshisha Women’s College of Liberal Arts

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  • 可視・近赤外分光法を用いた中晩生カンキツ品種でのβ-クリプトキサンチン非破壊計測法の検証
  • カシ ・ キンセキガイ ブンコウホウ オ モチイタ チュウ バンセイ カンキツ ヒンシュ デ ノ v-クリプトキサンチン ヒハカイ ケイソクホウ ノ ケンショウ

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Abstract

<p>Previously, we have found that the use of visible and near-infrared (VIS-NIR) spectroscopy is a useful non-destructive method for quantification of β-cryptoxanthin in Satsuma mandarin as an alternative method to HPLC. In this study, we examined whether the use of VIS-NIR spectroscopy would permit the quantification of β-cryptoxanthin in mid-late ripening citrus cultivars. Examination of the associations between VIS-NIR spectra data and β-cryptoxanthin contents was performed using partial least squares regression (PLSR). We found that the absorption in the region of 600 nm is particularly important for estimating the β-cryptoxanthin content, and that the wavelength regions related to sugar content also affect the assessment of β-cryptoxanthin. From these results, it is suggested that the use of VIS-NIR spectroscopy could allow prediction of β-cryptoxanthin content in mid-late ripening citrus cultivars.</p>

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