Vi bọc tinh dầu chanh bằng phương pháp nhỏ giọt kim tiêm tạo hạt Alginate-Ca đã được thực hiện trong nghiên cứu này. Khoảng nồng độ alginate khảo sát là 1 - 4%. Ở nồng độ alginate trên 1%, dịch có độ nhớt dạng pseudoplastic. | Ảnh hưởng của loại và nồng độ alginate lên đặc tính vi bọc tinh dầu chanh Citrus aurantifolia bằng phương pháp nhỏ giọt kim tiêm .den color inherit .ttnd ol .ttnd ul .ttnd dl padding 0 0px 0 20px .ttnd hr margin 10px 0px .ttnd a href javascript void 0 .ttnd a href color inherit dtextscript p text-align left dtextscript img vertical-align middle Trường Đại học Nông Lâm TP. Hồ Chí Minh 65 lt br gt lt br gt lt br gt lt br gt lt br gt Effects of type and concentration of alginate on microencapsulation characteristics of lt br gt lime essential oil Citrus aurantifolia produced by extrusion-dripping methods lt br gt lt br gt lt br gt Vinh Truong Phuong T. Nguyen Phuong N. M. Ta lt br gt Phuong T. Nguyen amp Nhung T. C. Pham lt br gt Department of Chemical Engineering Nong Lam University Ho Chi Minh City Vietnam lt br gt lt br gt lt br gt lt br gt ARTICLE INFO ABSTRACT lt br gt lt br gt Research Paper The extrusion-dripping method to produce alginate-calcium beads lt br gt for microencapsulation of lime oil Citrus aurantifolia was carried lt br gt Received November 12 2019 out in this study. The experimental range of alginate concentration lt br gt Revised December 15 2019 was from 1 to 4 . Above 1 alginate concentration viscosity was lt br gt Accepted January 02 2020 pseudoplastic behavior. The size - mm and sphericity lt br gt above 95 of the beads were maximum at alginate concentration lt br gt Keywords of 2 - 3 . The extrusion-dripping method was not applicable when lt br gt alginate concentration was over due to the high viscosity lt br gt resulting in low sphericity. The two types of alginates with a protein lt br gt Alginate lt br gt content of 9 alg1 and 2 alg2 had the same microencapsulation lt br gt Extrusion-dripping method lt br gt yield of 73 - 74 . However the solid recovery of alg2 was lt br gt Ion-gel much higher than that of alg1 . This is because alg2 has a lt br gt Lemon oil higher purity and if it is used in production it is