Abstract
The experiment adopts complex coacervation to prepare microcapsules. Through the experimental comparison, soybean protein isolated-maltodextrin is determined as the wall material for the experimental preparation of the microcapsules of kiwi fruit seed oil. This paper researched the effects of wall material concentration, core wall ratio and other factors on complex coacervation of kiwi fruit seed oil microcapsules embedding rate, determining that the best wall material concentration is 1%, core wall ratio is 1:1, and the optimum pH ratio is 3.0, temperature is 40°C, and the optimum curing time is 6 hours. The experiment carried out half life research on the microcapsules prepared by the complex coacervation of kiwi fruit seed oil microcapsule. By calculation: the degradation rate constant of kiwi fruit seed oil microcapsules prepared by complex coacervation is 2.793. According to the regression equation it can calculate the half life of kiwi fruit seed oil microcapsules is 18.58 months, about a year and a half.
Highlights
Kiwi fruit seed oil has antioxidant, clearing free radicals inside the body, hypolipidemic, absorption of ultraviolet, anti-cancer, anti-tumor, sterilization, deodorant and other physiological activities
This paper researched the effects of wall material concentration, core wall ratio and other factors on complex coacervation of kiwi fruit seed oil microcapsules embedding rate, determining that the best wall material concentration is 1%, core wall ratio is 1:1, and the optimum pH ratio is 3.0, temperature is 40 ̊C, and the optimum curing time is 6 hours
Due to the influence of production process, the kiwi fruit seed oil as the core material cannot be completely wrapped in the wall material, some part of the oil will be exposed in the surface of microcapsules
Summary
Kiwi fruit seed oil has antioxidant, clearing free radicals inside the body, hypolipidemic, absorption of ultraviolet, anti-cancer, anti-tumor, sterilization, deodorant and other physiological activities. Due to the linolenic acid and linoleic acid and other unsaturated fatty acids, in the external environment, the kiwi fruit seed oil cannot exist stably and can be disturbed by the oxygen, water and other substances in the air, gradually be oxidized and lose the original nu-. Microcapsules can play a role in reducing the toxic and side effects of substances, shielding the bad taste and odor of the core material, changing the physical properties of the material, and controlling the release mode and process of the core material. The microcapsules products prepared by this method generally have excellent thermal stability, high humidity resistance and good controlled release properties
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