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The lycopene extraction process and stability studies

Author: ChangHua
Tutor: YangWanZheng；DuXiaoMing
School: Central University for Nationalities
Course: Ecology
Keywords: Lycopene Extract Purification Stability Antioxidant
CLC: TS264.4
Type: Master's thesis
Year: 2009
Downloads: 432
Quote: 3
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Abstract


The the Xinjiang tomato sauce as the raw material , saponification with alkali sodium carbonate ketchup pretreatment conditions , respectively, the organic solvent extraction , ultrasonic extraction and microwave extraction of the optimum parameters of the three lycopene extraction method . Tomato powder as raw material for the study of supercritical carbon dioxide extraction of lycopene and determine the entrainer and the best extraction conditions . Lycopene Oleoresin of column chromatography of the crude product was purified lycopene crystals , melting point determination by thin-layer chromatography , UV-visible absorption spectroscopy , infrared spectroscopy , high performance liquid chromatography analysis of means of detection of lycopene rough extract , lycopene crystal qualitative and quantitative analysis , and provides a more reliable reference data for industrial production lycopene Oleoresin and lycopene crystals . Stability of lycopene , a more comprehensive study to identify a variety of factors that affect the stability , and provide a reference for color protection and safe storage of the products of lycopene . Finally antioxidant properties of lycopene in vitro experiments measured Lycopene hydroxyl radical , DPPH · scavenging effect as a control , and the two radical scavenging effect of the same concentration of L-ascorbic acid , in order to Evaluation of the antioxidant capacity of the lycopene , and the measurement results showed that lycopene is both free radical scavenger .

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CLC: > Industrial Technology > Light industry,handicrafts > Food Industry > Brewing industry > Production of condiments > Food coloring
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