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

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

Xuyan Dong[1];Bangfu Wu[1];Qianchun Deng[1];Fang Wei[1];Hong Chen[1];Chen Yang[1];Renhuai Cong[2];Chayan Wan[1];Xin Lv[1];Fenghong Huang[1];

【期刊名称】《中国油料作物学报（英文版）》 【年(卷),期】2018(003)004

【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