Tailored rigidity of W/O Pickering emulsions using diacylglycerol-based surface-active solid lipid nanoparticles

被引:1
作者
Li, Guoyan [1 ,2 ]
Lee, Wan Jun [1 ,2 ]
Tan, Chin Ping [3 ]
Lai, Oi Ming [4 ]
Wang, Yong [1 ,2 ]
Qiu, Chaoying [1 ,2 ]
机构
[1] Jinan Univ, Dept Food Sci & Engn, JNU UPM Int Joint Lab Plant Oil Proc & Safety, Guangzhou 510632, Peoples R China
[2] Guangdong Int Joint Res Ctr Oilseed Biorefinery N, Guangzhou 510632, Peoples R China
[3] Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Seri Kembangan 43300, Selangor, Malaysia
[4] Univ Putra Malaysia, Fac Biotechnol & Biomol Sci, Dept Bioproc Technol, Seri Kembangan 43300, Selangor, Malaysia
基金
中国国家自然科学基金;
关键词
INTERNAL PHASE EMULSIONS; STORAGE STABILITY; DELIVERY-SYSTEMS; OIL; FABRICATION; PARTICLES; STABILIZATION; FORMULATION; FUNCTIONALITY; DROPLETS;
D O I
10.1039/d1fo01883c
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Pickering water-in-oil (W/O) emulsions were fabricated by using medium-long chain diacylglycerol (MLCD)-based solid lipid nanoparticles (SLNs) and the connection between the characteristics of the SLNs and the colloidal stability of the emulsions was established. Via melt-emulsification and ultrasonication, MLCD-based SLNs with particle sizes of 120-300 nm were obtained with or without other surfactants. The particle size of the SLNs was influenced by the chemical properties of the surfactants, and surfactants decreased the contact angle of SLNs at the oil-water interface. Gelation was observed in SLNs modified by sodium stearoyl lactylate and lecithin, whereas the addition of Tween 20 resulted in a homogeneous SLN solution. The adsorption of surfactants onto SLN surfaces caused the production of higher amounts of alpha crystals accompanied by delayed crystallization onset which contributed to the reduction of particle size, interfacial tension and oil wetting ability. The W/O emulsions with higher rigidity and physical stability can be obtained by varying surfactant types and by increasing SLN mass ratios to 60%, whereby more SLNs are adsorbed at the droplet surface as a Pickering stabilizer. This study provides useful insights for the development of diacylglycerol-based SLNs and Pickering W/O emulsions which have great potential for food, cosmetic and pharmaceutical applications.
引用
收藏
页码:11732 / 11746
页数:16
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