Energy Value Evaluation of Hydrogenated Resistant Maltodextrin

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  • TAGAMI Hiroyuki
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • KISHIMOTO Yuka
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • MIYAZATO Shoko
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • KITAGAWA Machiko
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • HAYASHI Noriko
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • YOSHIKAWA Yuko
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • OGA Hiroshi
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • YAMADA Takako
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.
  • NISHIBATA Toyohide
    Research Laboratory, Matsutani Chemical Industry Co., Ltd. Research Laboratory, Matsutani Chemical Industry Co., Ltd.

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Hydrogenated resistant maltodextrin (H-RMD) is a dietary fiber whose energy value has not previously been reported. We evaluated the energy value of H-RMD. We conducted an in vitro digestion test, in vivo blood glucose measurement after ingestion, in vitro fermentability test, excretion test by rats and indirect calorimetry combined with breath hydrogen measurement for humans. H-RMD was hydrolyzed in vitro in a very small amount by human salivary amylase and by the rat small intestinal mucosal enzyme. Ingestion of H-RMD did not increase the blood glucose level of human subjects. An examination of in vitro fermentability suggested that H-RMD was fermented by several enterobacteria. Oral administration of H-RMD showed a saccharide excretion ratio of 42% by rats. A combination of indirect calorimetry and breath hydrogen measurement evaluated the metabolizable energy of H-RMD as 1.1 kcal/g in humans. We concluded from these results that H-RMD was not digested or absorbed in the upper gastrointestinal tract and was fermented in the colon to produce short-chain fatty acids which provided a lower amount of energy than that of resistant maltodextrin.

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