Study of Complex Coacervation of Gelatin A with Sodium Carboxymethyl Cellulose: Microencapsulation of Neem (Azadirachta indica A. Juss.) Seed Oil (NSO)

被引:46
作者
Devi, N. [1 ]
Maji, T. K. [1 ]
机构
[1] Tezpur Univ, Dept Chem Sci, Napaam 784028, India
关键词
characterization; complex coacervation; crosslinking agent; microencapsulation; neem seed oil; CONTROLLED-RELEASE; MICROCAPSULES; REPELLENT;
D O I
10.1080/00914037.2011.553851
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The efficiency of complex coacervation of gelatin A with sodium carboxymethyl cellulose (SCMC) was measured by checking viscosity, coacervate yield (%), and turbidity of the mixture. Maximum coacervation occurred at pH 3.5 and SCMC: gelatin ratio of 1.0: 2.33. Encapsulation efficiency, oil content, oil load, and release behavior of the microcapsules were studied. The size and nature of the microcapsules varied with the concentration of polymer and NSO as revealed by scanning electron microscopy study. Fourier transform infrared (FTIR) spectroscopy indicated that there was no significant interaction between the polymer and NSO.
引用
收藏
页码:1091 / 1105
页数:15
相关论文
共 23 条
[1]   Microencapsulation and testing of the agricultural animal repellent, Daphne [J].
Boh, B ;
Kosir, I ;
Knez, E ;
Kukovic, M ;
Skerlavaj, V ;
Skvarc, A .
JOURNAL OF MICROENCAPSULATION, 1999, 16 (02) :169-180
[2]   A review on controlled release of nitrogen fertilizers through polymeric membrane devices [J].
Dave, AM ;
Mehta, MH ;
Aminabhavi, TM ;
Kulkarni, AR ;
Soppimath, KS .
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 1999, 38 (04) :675-711
[3]   Complex coacervation of proteins and anionic polysaccharides [J].
de Kruif, CG ;
Weinbreck, F ;
de Vries, R .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2004, 9 (05) :340-349
[4]   Genipin Crosslinked Chitosan--carrageenan Polyelectrolyte Nanocapsules for the Controlled Delivery of Isoniazid [J].
Devi, Nirmala ;
Maji, Tarun Kumar .
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS, 2010, 59 (10) :828-841
[5]  
DZIEZAK JD, 1988, FOOD TECHNOL-CHICAGO, V42, P136
[6]  
El-Sherbiny IM., 2006, INT J POLYMERIC MAT, V55, P789
[7]  
GUYOT C, 1994, PESTICIDES GROUND WA, V9
[8]  
Hegenbart S., 1993, FOOD PRODUCT DESIGN, V3, P28
[9]  
Huang J.-C., 2004, INT J POLYM MATER, V53, P69, DOI [10.1080/00914030490263496, DOI 10.1080/00914030490263496]
[10]   Botanical insecticides, deterrents, and repellents in modern agriculture and an increasingly regulated world [J].
Isman, MB .
ANNUAL REVIEW OF ENTOMOLOGY, 2006, 51 :45-66