Handling Characteristic Evaluation of Free, Standard and Lipid Microencapsulated Vitamin and Mineral Premixes
作者机构：Prestage Department of Poultry ScienceNorth Carolina State University2711 Founders DriveRaleighNC 27607USA JEFO NutritionInc.5020 Avenue JefoSaint-HyacintheQUEJ2R 2E7Canada
出 版 物：《Journal of Agricultural Science and Technology(A)》 (农业科学与技术（A）)
年 卷 期：2020年第10卷第5期
页 面：247-256页
学科分类：082903[工学-林产化学加工工程] 08[工学] 0829[工学-林业工程] 082201[工学-制浆造纸工程] 0822[工学-轻工技术与工程]
主 题：Lipid microencapsulation vitamin mineral poultry swine flowability
摘 要：Feed ingredients can change physically or chemically when exposed to moisture,heat or *** changes impact how well they flow through a bin and disperse throughout the *** is a relatively new technique used to reduce reactivity and improve storage and handling characteristics(HC)of *** authors hypothesize that lipid matrix microencapsulation of free vitamin and mineral(VM)premixes significantly improve their HC making them more desirable products for feed *** samples of free,standard and lipid microencapsulated VM premixes were evaluated for the following HC:particle size(dgw),particle size variability(Sgw),flowability(measured by angle of repose(AOR)and minimum orifice diameter(MOD)),lumping,compressibility,bulk and tapped density,solubility and hygroscopic percent change in weight(day 0-1,0-3,0-5,5-9,0-9).Results were analyzed in a 3×2 factorial(JMP Pro 14)of form(free,standard,microencapsulated)by type(vitamin,mineral).Microencapsulated VM had the highest dgw(611.0mm and 722.7mm,respectively,p=0.002);free and microencapsulated vitamins had the smallest Sgw(1.67 and 1.49,respectively,p0.001).Microencapsulated premixes had significantly lower AOR(p0.001)and MOD values(p0.001)than other premixes,indicating improved *** days 0-3 and 0-5,microencapsulated premixes absorbed approximately half as much moisture(1.62%and 2.24%,respectively)than the free(3.48%and 5.04%,respectively)or standard(3.74%and 5.26%,respectively)premixes(p=0.001).The benefits gained from lipid matrix microencapsulation technology not only improve the HC of animal feed additives,but also improve the stability of VM premixes.
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