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Patent Searching and Data


Title:
METHOD FOR PREPARING LYCOPENE CRYSTALS WITH HIGH PURITY AND LOW HARM
Document Type and Number:
WIPO Patent Application WO/2019/080017
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing lycopene crystals with high purity and low harm. The method comprises the following steps: (1) mixing lycopene oleoresin with a mixed solvent consisting of an alkane and a lower alcohol, and heating and stirring same for dissolution to form a homogenous solution; (2) cooling and crystallizing the homogenous solution, filtering same to obtain a filter cake; (3) washing the filter cake successively using a lower alcohol and an alkane, and drying same to obtain lycopene crystals. According to the method provided by the present invention, lycopene crystals can be obtained using a mixed solvent by means of one step crystallization, and the crystal content is further improved and harmful substances in the crystals are reduced by means of a two-step crystal washing process to obtain lycopene crystals with high purity and low harm. The method is fast and convenient, lycopene crystals with high purity, low harm, and safety can be produced, and the method is suitable for industrial production.

Inventors:
LU QINGGUO (CN)
LIAN YUNHE (CN)
ZHANG ZHIMING (CN)
AN XIAODONG (CN)
LI QIANLI (CN)
GAO WEI (CN)
Application Number:
PCT/CN2017/107703
Publication Date:
May 02, 2019
Filing Date:
October 25, 2017
Export Citation:
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Assignee:
CHENGUANG BIOTECH GROUP CO LTD (CN)
International Classes:
C09B61/00
Domestic Patent References:
WO2017084493A12017-05-26
Foreign References:
CN105694527A2016-06-22
CN1775867A2006-05-24
CN1807410A2006-07-26
CN1775867A2006-05-24
CN1687239A2005-10-26
CN1807410A2006-07-26
Other References:
See also references of EP 3702412A4
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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