| Canarium albun (Lour.) Raeusch. also known as Qingguo, Bailan, etc., belonging to the Burseraeeae Canarium L. Canarium albun is the fruit in south China and has medicinal effect, has the rich nutritional value. By combining extensive literature queries and locally grown production of Fuzhou, the subject chosen Changying as a test of raw materials, the main results are as follows:1. The response surface optimization Canarium albun aqueous extract and its oxidation resistance. Canarium albun aqueous extract by the traditional water bath in single factor (extraction time, extraction temperature, liquid ratio) of ABTS+radical scavenging, on the basis of using the Box-Behnken design response surface test, get regression equation: Y=54.74+0.27A+3.95B-4.81C+2.58AB-0.19AC-1.72BC-6.42A2-4.53B2-8.20C2.Determinethe best Canarium albun aqueous extract by the traditional water bath to extract process as follows: extraction time was 2.07 h, the temperature is 75.4 ℃, liquid ratio of 13.2:1, the ABTS+radical clearance rate measured values is 57.89%, predictive value was 56.67%, the relative error is 2.15%, shows that the regression equation fitting of experimental results and the actual sex is good. The optimum process oi Canarium albun aqueous extract on the DPPH radical antioxidant propertie of the IC50 were 5.751 μg/mL,0.9296 mg/mL, IC50 of Vc were 7.267 μg/mL,0.5462 mg/mL. The results showed that the Canarium albun aqueous extract have strong ability to remove DPPH radical, and slightly higher than the Vc; Canarium albun aqueous extract had antioxidant propertie,but lower than that of Vc.2. The response surface optimization Canarium albun water extraction of ultrasonic extraction technology and its oxidation resistance.Ultrasonic extracting Canarium albun extract through the single factor (extraction time, extraction and liquid ratio) of aqueous extract of the ABTS radical ntioxidant propertie, on the basis of using the Box-Behnken design, response surface test to get regression equation of the Canarium albun: Y=60.14+3.58A-3.47B-1.38C+5.36AB+0.80AC+7.79BC-6.13A2-9.77B2-14.65C2.Determine the best extraction technology of ultrasonic extraction method:extraction time for 52 min, extract power is 500 w, liquid ratio of 9.8:1, the experiment results is 62.27%, predictive value of 60.85%, the relative error is 2.28%, shows that the regression equation and the actual fitting of experimental results is good. The best extraction technology to extract the IC50 half inhibitory concentration of aqueous extract of 0.00297 mg/mL. IC50 of Vc was 0.00873 mg/mL. The results showed that the aqueous extract of Canarium albun have strong ability to remove DPPH radical, and higher than that of Vc. The O2- half inhibitory concentration (IC50) of 0.7065 mg/mL, IC50 of Vc was 0.4563 mg/mL. The results show that the water extract of Canarium albun has certain ability to remove O2-, but lower than that of Vc.3. Different extraction method on the Canarium albun extract water radical scavenging effect.Water bath method compared with ultrasonic extraction.Water bath method, ultrasonic extraction and Vc IC50 of DPPH were 0.00456 mg/mL,0.00292 mg/mL and 0.00836 mg/mL Water bath method, ultrasonic extraction, and the Vc IC50 of O2-were 0.961 mg/mL,0.774 mg/mL and 0.453 mg/mL. Results indicate that the ultrasonic extraction of DPPH radical and O3-were higher than water bath method. Ultrasonic method compared with traditional water bath method, extraction time reduced by half, but the liquid ratio is less than the water bath method, the extraction of material on the usage of raw material increased.4. chiffon cake with Canarium albun production process optimization.Canarzum albun aqueous extract with the best technology for making chiffon cake:100 g flour, eggs 218.2, extract water addition amount of 35.3 g and 36.4 g for oil, sugar addition amount of 36.0 g, baking temperature of 170 ℃ and 150 ℃ under fire. |
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