Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (7): 1379-1386.DOI: 10.3969/j.issn.1000-2561.2019.07.019

• Agricultural Product Processing, Preservation, Storage, Analysis and Detection • Previous Articles     Next Articles

Preparation Technology Optimization of Sodium Alginate / Chitosan Based Tapping Panel Dryness (TPD) Rehabilitation Nutrition Microcapsule in Hevea brasiliensis

HU Yiyu,FENG Chengtian,LIU Hui,YUAN Kun,XIE Guishui,WANG Zhenhui()   

  1. Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs / State Key Laboratory Incubation Base for Cultivation & Physiology of Tropical Crops, Haikou, Hainan 571101, China
  • Received:2018-12-04 Revised:2019-02-21 Online:2019-07-25 Published:2019-08-01
  • Contact: WANG Zhenhui

Abstract:

Tapping Panel Dryness (TPD) is one of the important factors that restrict the development of natural rubber production. It is an urgent problem to develop simple and efficient prevention and treatment technology for TPD. In this paper, sodium alginate / chitosan was used as the wall material, and the main effective ingredients of TPD rehabilitation nutrition were used as the core material. The TPD rehabilitation nutrition was prepared into microcapsules by a complex coacervation reaction. An L16(4 5) orthogonal experimental design for the standardization of encapsulation rate and drug loading rate was applied to optimize the preparation procedure of the microspheres. The results showed that the best preparation condition were chitosan 2.0 mg/mL, nutritive agent 1 g, pH 5, 40 ℃, and glutaraldehyde 30 mL. The microcapsules prepared under this process were relatively round and uniform in size distribution, with encapsulation rate of 69.31% and drug loading rate of 14.35%. The optimum preparation conditions would lay a good foundation for the later implementation of slow-release microcapsules of TPD rehabilitation nutrients embedded in xylem, and provide theoretical references for the application of new and efficient rehabilitation technology for TPD in Hevea brasiliensis.

Key words: Hevea brasiliensis, tapping panel dryness(TPD), sodium alginate / chitosan, microcapsule

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