Microencapsulação de extrato do resíduo de seriguela (Spondias purpúrea L.) usando maltodextrina, goma arábica e soro de leite : desenvolvimento e caracterização

Autor: MORAIS, Nadja Nara Gomes de
Přispěvatelé: MELO, Enayde de Almeida, SANTOS, Andrelina Maria Pinheiro, MACIEL, Maria Inês Sucupira, MACHADO, Erilane de Castro Lima, VASCONCELOS, Margarida Angélica da Silva
Jazyk: portugalština
Rok vydání: 2020
Předmět:
Zdroj: Biblioteca Digital de Teses e Dissertações da UFRPE
Universidade Federal Rural de Pernambuco (UFRPE)
instacron:UFRPE
Popis: Submitted by Mario BC (mario@bc.ufrpe.br) on 2020-08-31T17:59:31Z No. of bitstreams: 1 Nadja Nara Gomes de Morais.pdf: 685534 bytes, checksum: a2bd9ee48105df9dcf7166e016afcdd3 (MD5) Made available in DSpace on 2020-08-31T17:59:31Z (GMT). No. of bitstreams: 1 Nadja Nara Gomes de Morais.pdf: 685534 bytes, checksum: a2bd9ee48105df9dcf7166e016afcdd3 (MD5) Previous issue date: 2020-02-10 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The agroindustrial residue of the seriguela (Spondias purpúrea L.) has a signifi- cant amount of phenolic compounds. Therefore, the objective of this study was to evaluate the feasibility of atomic encapsulation of the hydroethanolic extract of the seriguela residue (containing 3% total solids), using different temperatures (120; 140 and 180 ºC) and wall materials (MP) , [maltodextrin (MD), gum arabic (GA) and whey (SL)], isolated and in blends, [MD; GA; MD + GA; MD + SL; GA + SL and MD + GA + SL, in the proportion of 100: 0; 100: 0; 50:50; 90:10; 90:10; 45:45:10 (v / v), respectively], reaching a final concentration of 30%. In the atomi- zation process, the pressure of 6.5 Bar was kept constant; drying airflow (28 m3 / h); feeding the drying chamber with the mixture through a peristaltic pump with a flow rate of 12 mL / min. The microencapsules were subjected, in the first stage, to the determination of moisture content, water activity, phenolic compounds content, antioxidant action, encapsulation efficiency, and encapsulation yield. The microen- capsules selected in the first stage were subjected to determination of bulk densi- ty, hygroscopicity, colorimetric analysis, stability test, and morphology. Regardless of the process condition, the microencapsulados showed low moisture content (3.35 to 6.96%) and aw (0.11 to 0.16). However, the best results for encapsulation efficiency (90.79 to 96.07 %); yield (39.37 to 52.81%) and antioxidant capacity (28.95 to 43.76%) were obtained using temperatures of 140 ºC and GA; MD + GA and MD + SL. In general, these particles were spherical, slightly protruding, intact and without fissures and light yellow (L = 91.34 to 92.38; Hue = 85.18 to 88.77; Chroma = 7.43 to 11.15). Hygroscopicity was
Databáze: OpenAIRE
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