Method for preparing D-psicose crystal

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United States of America Patent

PATENT NO 10808002
APP PUB NO 20190177351A1
SERIAL NO

16279860

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Abstract

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A method for producing high purity D-psicose crystals having a purity of 98% (w/w) or more and a grain size of MA200 or more. The method includes: removing impurities from a D-psicose solution to obtain a purified D-psicose solution; concentrating the purified D-psicose solution; cooling the concentrated D-psicose solution to 30° C. to 40° C. through a heat exchanger; seed crystallizing the D-psicose solution at 30° C. to 40° C. to obtain a seed crystallized massecuite; and full-scale crystallizing the seed crystallized massecuite. The method can produce pure D-psicose crystals in a suitable form for industrial application through an economical crystallization process from the D-psicose solution without using organic solvents.

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Patent Owner(s)

Patent OwnerAddress
CJ CHEILJEDANG CORPORATIONCJ CHEILJEDANG CENTER 330 DONGHO-RO JUNG-GU SEOUL 04560

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
An, Jun Gap Suwon-si, KR 3 26
Kim, Seong Bo Seoul, KR 79 95
Lee, Joo Hang Ansan-si, KR 12 35
Park, Seung Won Yongin-si, KR 128 340

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