| Full text | |
| Author(s): |
Silva, Marluci P.
[1]
;
Thomazini, Marcelo
[1]
;
Holkem, Augusto T.
[1]
;
Pinho, Lorena S.
[1]
;
Genovese, Maria I.
[2]
;
Favaro-Trindade, Carmen S.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Dept Engn Alimentos, Pirassununga, SP - Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmaceut, Dept Alimentos & Nutr Expt, Sao Paulo, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Food Research International; v. 123, p. 144-152, SEP 2019. |
| Web of Science Citations: | 2 |
| Abstract | |
Guarana is a native fruit of the Amazon rainforest, which presents high levels of phenolic compounds. However, these bioactive compounds may be unstable in food processing and gastrointestinal conditions. Thus, this work aimed to characterize guarana seed extract (GSE) followed by microencapsulation using a spray-chilling method and with vegetable fat as carrier, as well as to evaluate the particles. Phenolic-rich GSE was produced using 50% (w/w) hydroalcoholic solution and dehydrated by spray drying and lyophilization. Powdered GSE was characterized in relation to its inhibitory activity on digestive enzymes. Solid lipid microparticles (SLM) were evaluated for the retention of bioactive compounds and the release profile of phenolic compounds in simulated gastrointestinal conditions. Powdered GSE showed anti-obesity potential due to the high inhibitory activity of lipase. Regarding the retention of phenolic compounds, at least 75% were detected after 90 days at 25 degrees C in SLM. Moreover, SLM loaded with 7.5% GSE released approximately 99% of phenolic compounds in simulated gastrointestinal conditions. These results show the efficiency of spray chilling for protection and release of phenolic compounds from GSE, allowing future application in food. (AU) | |
| FAPESP's process: | 18/05315-3 - Chemo-preventive properties of extracts from blueberries, jabuticabas and cinnamon isolated or combined with probiotics |
| Grantee: | Augusto Tasch Holkem |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 16/24895-5 - Coencapsulation of guarana (Paullinia cupana) extracts and probiotics |
| Grantee: | Marluci Palazzolli da Silva Padilha |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 16/24916-2 - Preparation, encapsulation and application of extract of carotenoids obtained from the bark of guarana (Paullinia cupana) |
| Grantee: | Lorena Silva Pinho |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 15/19375-0 - Coencapsulation of probiotics and proanthocyanidin-rich extract obtained from cinnamon (Cinnamomum zeylanicum Blume) |
| Grantee: | Augusto Tasch Holkem |
| Support Opportunities: | Scholarships in Brazil - Doctorate |