Microencapsulation of nutmeg essential oil by spray-drying with different wall materials  

作　　者：Xuyan Dong Bangfu Wu Qianchun Deng Fang Wei Hong Chen Chen Yang Renhuai Cong Chayan Wan Xin Lv Fenghong Huang 

机构地区：[1]Key Laboratory of Oilseeds processing, Ministry of Agriculture-Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences [2]Infinitus China Ltd.Co.

出　　处：《Oil Crop Science》2018年第4期258-269,共12页中国油料作物学报(英文版）

基　　金：supported by the National High Technology Research and Development Program of China(2017YFD0400200);National Natural Science Foundation of China(31701643,31171661,21105119 and 31271879);Research Foundation of the Director General of Oil Crops Research Institute,Chinese Academy of Agricultural Sciences

摘　　要：Nutmeg essential oil with volatile components is sensitive to oxygen, light, water and high temperature. Spray-drying is widely used as an encapsulation technique for improving compound stability during processing and storage. In this study, influence of encapsulated matrix on spray-dried nutmeg essential oil microcapsule was investigated using blends of maltodextrin and either gum Arabic(GA-MD), or octenyl succinic acid modified starch(OSA-MD) as wall materials. Characteristics of spray-dried powders from these 2 wall materials were evaluated and compared. Powder property analysis indicated that GA-MD microcapsules presented larger size, higher moisture and poorer flowability compared with OSA-MD microcapsules. Fourier transforms infrared spectroscopy and thermogravimetric analysis showed that both GA-MD and OSA-MD microcapsules improved the stability of nutmeg essential oil. However, GA-MD microcapsules exhibited higher storage stability than OSA-MD microcapsules. This research provided theoretical foundation for wall material choice of microcapsule and nutmeg essential oil utilization in food industry.Nutmeg essential oil with volatile components is sensitive to oxygen, light, water and high temperature. Spray-drying is widely used as an encapsulation technique for improving compound stability during processing and storage. In this study, influence of encapsulated matrix on spray-dried nutmeg essential oil microcapsule was investigated using blends of maltodextrin and either gum Arabic(GA-MD), or octenyl succinic acid modified starch(OSA-MD) as wall materials. Characteristics of spray-dried powders from these 2 wall materials were evaluated and compared. Powder property analysis indicated that GA-MD microcapsules presented larger size, higher moisture and poorer flowability compared with OSA-MD microcapsules. Fourier transforms infrared spectroscopy and thermogravimetric analysis showed that both GA-MD and OSA-MD microcapsules improved the stability of nutmeg essential oil. However, GA-MD microcapsules exhibited higher storage stability than OSA-MD microcapsules. This research provided theoretical foundation for wall material choice of microcapsule and nutmeg essential oil utilization in food industry.

关 键 词：NUTMEG ESSENTIAL oil MICROCAPSULE SPRAY-DRYING POWDER property storage stability 

分 类 号：S[农业科学]