喷雾干燥和凝聚法制备柑桔精油微胶囊的包封效率和热稳定性

Q4 Agricultural and Biological Sciences

Boletim Centro de Pesquisa de Processamento de Alimentos Pub Date : 2016-10-24 DOI:10.5380/CEP.V34I1.48992

S. F. Zawadzki, Camila A Perussello, Priscila Schultz Müller, A. Scheer

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引用次数: 3

摘要

以麦芽糖糊精和变性淀粉为载体，采用喷雾干燥和海藻酸钠凝聚的方法对柑桔精油进行微囊化。考察了不同微胶囊化方法和载体对产物微观和热特性以及微胶囊化效率的影响。采用顶空萃取-气相色谱联用技术，两种方法的包封率均在99%以上，精油主要成分为d -柠檬烯(95.7%)和茉莉烯(1.66%)。凝聚和喷雾干燥分别产生908.63 μ m和1.02 μ m的微颗粒，提高了油的热稳定性。然而，凝聚后的微颗粒比喷雾干燥的微颗粒具有更高的热稳定性和沸点。

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ENCAPSULATION EFFICIENCY AND THERMAL STABILITY OF ORANGE ESSENTIAL OIL MICROENCAPSULATED BY SPRAY DRYING AND BY COACERVATION

Orange essential oil was microencapsulated by spray drying using maltodextrin and modified starch as carrier agents, and also by coacervation using sodium alginate. The influence of different microencapsulation methods and carriers on the microscopic and thermal characteristics of the product and on the encapsulation efficiency of the microparticles was investigated. According to a technique based on headspace extraction coupled to gas chromatography, the encapsulation efficiencies were above 99 % for both methods, and the oil was composed mainly of D-limonene (95.7 %) and mircene (1.66 %). Coacervation and spray drying produced microparticles of 908.63 μ m and 1.02 μ m, respectively, which increased the thermal stability of the oil. Nonetheless, the coacervated microparticles showed higher thermal stability and boiling point than the spray-dried ones.

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来源期刊

Boletim Centro de Pesquisa de Processamento de Alimentos Agricultural and Biological Sciences-Animal Science and Zoology

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期刊介绍： The CEPPA Bulletin publishes unpublished technical-scientific papers (unpublished or submitted to another journal), resulting from research and bibliographic reviews in the area of science, technology, food engineering and the like. Originals in English (priority) are accepted, which comply with the normative provisions of the newspaper. The opinions expressed in articles are the sole responsibility of the authors. The Bulletin reserves the right to adapt the originals to maintain the homogeneity of the publication, always respecting the author''s style. The CEPPA Bulletin is indexed in Scopus, Food Science and Technology Abstract (FSTA), CAB Abstract, Chemical Abstract (CA), Latin American and Caribbean Literature in Health Sciences (LILACS) databases and Periodical Literature in Agricultural Sciences (PERI).