‘蓝鸟’睡莲花色苷W/O皮克林乳液的制备及稳定性分析  

Preparation and Stability of Anthocyanin W/O Pickering Emulsion from'Blue Bird'Tropical Water Lily

作　　者：赵霞 陈彦甫 周卫娟 赵莹[1] ZHAO Xia;CHEN Yanfu;ZHOU Weijuan;ZHAO Ying(Key Laboratory of Ministry of Education for Genetics and Germplasm Innovation of Tropical Special Trees and Ornamental Plants,Hainan Biological Key Laboratory for Germplasm Resources of Tropical Special Ornamental Plants,College of Forestry,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学林学院,热带特色林木花卉遗传与种质创新教育部重点实验室,海南省热带特色花木资源生物学重点实验室,海南海口570228

出　　处：《现代食品科技》2024年第6期206-213,共8页Modern Food Science and Technology

基　　金：海南省重点研发计划项目(ZDYF2022XDNY179)。

摘　　要：由于睡莲中所提取的活性成分具有不稳定性,对活性成分的包埋技术有待探索。该文以热带睡莲中的‘蓝鸟’睡莲(Nymphaea'Blue Bird')作为研究对象,通过制备W/O皮克林乳液将睡莲花色苷包埋,目的在于构建一个稳定的食品级体系,并研究该技术对花色苷的包埋稳定性与释放效果。以花色苷溶液作为水相(W),大豆油为油相(O),乳化剂选取亲脂性乳化剂聚甘油蓖麻醇酸酯(PGPR),制备不同水相体积分数的W/O乳液。研究发现,水相体积分数为30%和50%时制备的W/O乳液,在不同温度下贮藏15 d后体系稳定,对花色苷的包封率分别为75.97%和78.12%,且15 d内的包埋稳定性较好。以不同剪切速率制备W/O乳液考察其稳定性,当剪切速率为28000 r/min时,W/O乳液的表观稳定,保存120 min之后离心保留率达到97.40%。综合研究,该论文制备的W/O皮克林乳液体系平衡,且对花色苷有较好的包封效果。The embedding technology of active ingredients needs to be explored due to the instability of active ingredients extracted from water lily.In this study,Nymphaea'Blue Bird',a tropical water lily,is used as a target for the extraction of anthocyanin and its embedding in W/O pickering emulsions.W/O emulsions with different volume fractions of the aqueous phase were prepared,using the anthocyanin solution as the aqueous phase(W),soybean oil as the oil phase(O)and the emulsifier selected as the lipophilic emulsifier polyglyceryl ricinoleate(PGPR).The results showed that the W/O emulsions prepared at 30%and 50%of the aqueous phase volume fraction were stable after 15 d of storage at different temperatures,and the encapsulation efficiency of the anthocyanin was 75.97%and 78.12%,respectively,and the encapsulation stability within 15 d was good.The stability of W/O emulsions was investigated by preparing W/O emulsions at different shear rates.The apparent stability of W/O emulsions was achieved when the shear rate was 28000 r/min,and the retention rate of centrifugation reached 97.40%after 120 min storage.In conclusion,the W/O pickering emulsion prepared in this manuscript was balanced and had a good encapsulation effect on anthocyanins.

关 键 词：‘蓝鸟’睡莲 花色苷 W/O皮克林乳液 稳定性 

分 类 号：TS201.2[轻工技术与工程—食品科学]