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Study Of The Lycopene On Extraction And Purification

Posted on:2008-10-20Degree:MasterType:Thesis
Country:ChinaCandidate:M LiFull Text:PDF
GTID:2121360215968346Subject:Food Science
Abstract/Summary:
Lycopene is the unsaturated hydrocarbon of a lipid solubility, have very strong anti-oxidant and physiological functions, can prevent cancers such as breast cancer, digestive tract cancer,etc. effectively, can protect the heart, resist aging, strengthen human immunity,etc.. So, lycopene is paid close attention to more and more by people, is a focus in health care, functional food are studied in the world at present. As people's understanding of lycopene health care function being higher and higher, domestic and international demand is increasing constantly, the production of lycopene, with employing very great development prospect.This text regards tomato ketchup of the real estate in Xinjiang as raw materials, soak and propose and soak and propose the influence on drawing the result with lycopene with supersonic wave after studying the microwave, through determining drawing the craft and optimum abstraction craft parameter bestly of lycopene, it is that the microwave is soaked and mentioned to draw the craft bestly, the optimum condition is: The microwave power is 500W, in order to draw solvents with the Petroleum ether - Acetone (volume ratio is 1:2), drew the power 500w, draw time 90s, temperature 60℃, material liquid than 1:3 (g / ml), draw number of times 3 times, drawing rate can be more than 98%.Compared with microwave supersonic wave, it is relative and too long that draw time, efficiency is relatively low, the best process conditions of lycopene are that supersonic wave is drawn: Regard Ethyl acetate as solvents, ultrasonic output power is 60w, draw 50℃of temperature, draw time 15min, frequency conversion time 15s, material liquid than 1:3 (g/ml), tertiary to draw, the abstraction rate of lycopene is 97.5% under this condition.Meanwhile, carried on research to the solubility, crystallization and heavy crystallization situation of lycopene, the solubility discovering lycopene in sour second ester of second is best, confirm lycopene crystallization and the heavy and crystalline best solvent are sour second ester of second, i.e. the crystalline optimum condition of lycopene is: Regard second ester of second acid as solvents, crystallization temperature is at 10℃, crystallization can obtain crystallization with better brilliant shape in 2 hours.In addition, this text regards waste material tomato peel of the tomato ketchup factory as raw materials, to drawing octacosanol and carrying on research from the tomato peel of waste material tentatively, and use the detection of the appearance together through the makings, verify tentatively that contains a certain amount of octacosanol in the peel of tomatoes. But this text has made preliminary studying only to the abstraction of octacosanol, content and the best craft of drawing octacosanol to octacosanol have not been fixed, so the properties, drawing the craft, medical value to await further studying to octacosanol in the future.
Keywords/Search Tags:lycopene, octacosanol, extraction, crystallization
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