为了提高β-胡萝卜素的溶解性以及生物利用度,以大黄鱼卵分离蛋白(Pseudosciaena crocea roe protein isolate,PRPI)为乳化剂构建稳定的PRPI-β-胡萝卜素水包油乳液体系,考察不同贮存时间下乳液体系稳定性的变化;通过体外模拟消化明确...为了提高β-胡萝卜素的溶解性以及生物利用度,以大黄鱼卵分离蛋白(Pseudosciaena crocea roe protein isolate,PRPI)为乳化剂构建稳定的PRPI-β-胡萝卜素水包油乳液体系,考察不同贮存时间下乳液体系稳定性的变化;通过体外模拟消化明确其消化过程及吸收能力。结果表明,在贮存14 d后,乳液体系的平均粒径及外观形态均无显著改变;模拟口腔消化对乳液体系微观结构的状态影响较小,但经胃消化后,乳液体系发生水解,液滴聚集,平均粒径由(255.46±7.41)nm增大至(9749.25±406.66)nm(P<0.05);经小肠消化后,液滴聚集减弱,平均粒径减小至(3654.36±527.91)nm(P<0.05),仍有较高的β-胡萝卜素保留率(81.64±2.72)%和生物利用度(93.13±3.59)%。因此,以PRPI为乳化剂不仅可以提高乳液输送体系的稳定性,还可以提高β-胡萝卜素的生物利用度。展开更多
The booming development of DIW technology present an unprecedented prospect in energetic materials field and has attracted great interest due to its relative simplicity and high flexibility of manufacturing.Herein,a n...The booming development of DIW technology present an unprecedented prospect in energetic materials field and has attracted great interest due to its relative simplicity and high flexibility of manufacturing.Herein,a novel CL-20 based explosive ink formulation have been developed successfully for MEMS initiation systems via DIW technology.We designed PVA/GAP into an oil-in-water(O/W)emulsion,in the way that the aqueous solution of PVA as water phase,the ethyl acetate solution of GAP as oil phase,the combination of Tween 80 and SDS as emulsifier,BPS as a curing agent of GAP.The ideal formulation with good shear-thinning rheology properties and clear gel point was prepared using only 10 wt%emulsion.The dual-cured network formed during the curing process made the printed sample have good mechanical properties.The printed samples had satisfactory molding effect without cracks or fractures,the crystal form of CL-20 not changed and the thermal stability have improved.Deposition of explosive inks via DIW in micro-scale grooves had excellent detonation performances,which critical detonation size was 1×0.045 mm,detonation velocity was 7129 m/s and when the corner reaching 150°can still detonated stably.This study may open new avenues for developing binder systems in explosive ink formulations.展开更多
基金This work was supported by the Graduate Education Innovation Project of Shanxi Province(2020SY401)No.55 Research Institute of China North Industries Group Corporation Open Innovation Fund(WDZC2020JJ017).
文摘The booming development of DIW technology present an unprecedented prospect in energetic materials field and has attracted great interest due to its relative simplicity and high flexibility of manufacturing.Herein,a novel CL-20 based explosive ink formulation have been developed successfully for MEMS initiation systems via DIW technology.We designed PVA/GAP into an oil-in-water(O/W)emulsion,in the way that the aqueous solution of PVA as water phase,the ethyl acetate solution of GAP as oil phase,the combination of Tween 80 and SDS as emulsifier,BPS as a curing agent of GAP.The ideal formulation with good shear-thinning rheology properties and clear gel point was prepared using only 10 wt%emulsion.The dual-cured network formed during the curing process made the printed sample have good mechanical properties.The printed samples had satisfactory molding effect without cracks or fractures,the crystal form of CL-20 not changed and the thermal stability have improved.Deposition of explosive inks via DIW in micro-scale grooves had excellent detonation performances,which critical detonation size was 1×0.045 mm,detonation velocity was 7129 m/s and when the corner reaching 150°can still detonated stably.This study may open new avenues for developing binder systems in explosive ink formulations.
