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43results about How to "Mask odor" patented technology

Preparation method of anthocyanin lipidosome

The invention relates to a novel preparation method of anthocyanin lipidosome, which solves the problems of poor stability and low bioavailability of free anthocyanin. Based on the characteristic that the stability of anthocyanin is greatly affected by pH, the method adopts the combination of pH gradient and reverse evaporation to obtain anthocyanin lipidosome suspension, and then the anthocyanin lipidosome suspension is subjected to membrane extrusion or circular high-pressure homogenization to obtain the anthocyanin lipidosome with different particle size ranges. As the anthocyanin lipidosome suspension is difficult to store, a freeze-drying protective additive is added during preparation of the lipidosome to pre-freeze the suspension at -65 DEG C and then to freeze and dry the suspension in a freezer dryer, so that freeze-dried anthocyanin lipidosome powder is obtained. The anthocyanin lipidosome prepared by the method has a high embedding rate reaching up to 85.88%, the lipidosome within a particle size range from 100nm to 234nm can be obtained by different processing methods, and the embedding rate of the lipidosome after freeze-drying and redissolving can reach 82.5%. The anthocyanin is improved in in-vivo stability and bioavailability after being embedded by the lipidosome.
Owner:NANJING UNIV OF FINANCE & ECONOMICS

Slow-release controlled-release microcapsules for fresh keeping of fresh agriculture products and preparation method of slow-release controlled-release microcapsules

The invention discloses slow-release controlled-release microcapsules for fresh keeping of fresh agriculture products and a preparation method of the slow-release controlled-release microcapsules. Theslow-release controlled-release microcapsules comprise controlled-release film microcapsules with 5 different coating film thicknesses, each controlled-release film microcapsules consist of controlled-release films, and mini-pill essential oil microcapsules; controlled-release films are water insolubility controlled-release films, in which a water solubility pore-forming agent is distributed, andthe core material of the mini-pill essential oil microcapsules is porous starch or micropore molecular sieves; and the core materials of the mini-pill essential oil microcapsules are a mixture of edible majoram essential oil, garlic essential oil and Citronella grass oil, of which the purity can be 99% or above. The liquid essential oil is turned into solid powder to be applied to the field of fresh keeping of agricultural products during logistics, an effective controllable release system can be formed, the anti-bacteria fresh keeping time of the plant essential oil can be prolonged, and thestability of the essential oil can be improved, so that the obtained slow-release controlled-release microcapsules have good bacteria resistance, safety, stability, and zero-grade controllable release properties.
Owner:XI'AN POLYTECHNIC UNIVERSITY
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