| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Universidade Estadual de Campinas. Faculdade de Engenharia de Alimentos. Departamento de Ciência de Alimentos - Brasil
[2] Universidade Estadual de Campinas. Faculdade de Engenharia de Alimentos. Departamento de Ciência de Alimentos - Brasil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Food Technology; v. 23, 2020-03-30. |
| Abstract | |
Abstract Kefir, a consortium of acetic and lactic bacteria and yeasts, is versatile for biotransformation of vegetable substrates and may improve their bioactive properties. Lentil is a legume rich in vitamins, minerals, complex carbohydrates and proteins, making it an excellent substrate for fermentation and obtaining bioactive molecules. We report the effect of different process variables on antioxidant properties of lentil extracts obtained using kefir as a biotransformation agent and experimental design. The results showed that the factors agitation (rpm) and incubation temperature exerted significant effects. Incubation temperature of 28 °C and agitation of 75 rpm were the most suitable conditions for kefir fermentation and maximizing the antioxidant properties of the fermented lentils. The highest antioxidant activities for fermented products were 4128.39, 35.87 and 23.20 μmol of Trolox equivalents per gram of sample (μmoL TE g-1) measured by Total Antioxidant Capacity, FRAP and DPPH-radical scavenging methods, respectively. Additionally, we detected that the initial fermentation times (in the first six hours) were enough to positively affect the antioxidant properties of the lentil extracts, reaching a percentage increase of up to 270% in the antioxidant activity of the fermented products in relation to those non-fermented samples. (AU) | |
| FAPESP's process: | 17/02000-9 - Associated biological processes for a production of multifunctional compounds: effects of germination, fermentation and enzymatic hydrolysis on biological properties of lentil (lens culinaris) |
| Grantee: | Ruann Janser Soares de Castro |
| Support Opportunities: | Regular Research Grants |