Encapsulation of lycopene extract from tomato pulp waste with gelatin and poly(γ-glutamic acid) as carrier

被引：82

作者：

Chiu, Y. T. ^{[1
]}

Chiu, C. P. ^{[1
]}

Chien, J. T. ^{[1
]}

Ho, G. H. ^{[1
]}

Yang, J. ^{[1
]}

Chen, B. H. ^{[1
]}

机构：

[1] Vedan Enterprise Corp, Taichung 400, Taiwan

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2007年 / 55卷 / 13期

关键词：

lycopene; tomato pulp waste; encapsulation; gelatin; poly(gamma-glutamic acid);

D O I：

10.1021/jf0700069

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Tomato pulp waste, a byproduct obtained during the processing of tomato juice, has been shown to be a rich source of lycopene. The objectives of this study were to use gelatin and poly(gamma-glutamic acid) (gamma-PGA) as coating materials for the encapsulation of lycopene extract from tomato pulp waste. Initially, lycopene was extracted with supercritical carbon dioxide, followed by microencapsulation using an emulsion system consisting of 4.5% gelatin, 10% gamma-PGA, and 4.8% lycopene extract. Analysis of differential scanning calorimetry revealed that the thermal stability of the coating material could be up to 120 degrees C, with a mean particle size of 38.7 mu m based on Coulter counter analysis. The total weight of microencapsulated powder was 617 mu g with the yield of lycopene being 76.5%, indicating a 23.5% loss during freeze drying. During storage of microencapsulated powder, the concentrations of cis-, trans-, and total lycopene decreased along with increasing time and temperature. A fast release of lycopene in the powder occurred at pH 5.5 and 7.0, while no lycopene was released at pH 2.0 and 3.5.

引用

页码：5123 / 5130

页数：8

共 29 条

[1] Oxidative stability of carotenoid pigments and polyunsaturated fatty acids in microparticulate diets containing krill oil for nutrition of marine fish larvae [J].