Tribiotication strategy for the functionalization of bovine colostrum through the biochemical activities of artisanal and selected starter cultures. Issue 1 (1st January 2020)

• Record Type: Journal Article
• Authors: Cotârleţ, Mihaela; Vasile, Aida Mihaela; Gaspar-Pintiliescu, Alexandra; Oancea, Anca; Bahrim, Gabriela Elena
• Is Part Of: CyTA: journal of food. Volume 18:Issue 1(2020)
• Page Start: 274
• Page End: 280
• Publication Date: 2020-01-01
• Subjects: Bovine colostrum -- biotransformation -- kefir grains -- selected starters -- bioactive peptides -- prebiotics -- ace inhibition -- antioxidant activity -- antimicrobial activity; calostro bovino -- biotransformación -- granos de kéfir -- iniciadores seleccionados -- péptidos bioactivos -- prebióticos -- inhibición de ACE -- actividad antioxidante -- actividad antimicrobiana; Food -- Periodicals; Nutrition -- Periodicals; Food -- Research -- Periodicals; 641.05
• DOI: 10.1080/19476337.2020.1745287
• Languages: English
• ISSNs: 1947-6337

Abstract

ABSTRACT: The main aim of this study was to transform bovine colostrum into a tribiotic product through a metabolic conversion with a microbial consortium based on artisanal and starter microorganisms. As such, the bovine colostrum was firstly transformed enzymatically for 48 h with a selected strain of a non-pathogenic Candida lipolytica strain, and then lactic acid fermentation was performed for 48 h, by using a co-culture of 25 g/L fresh kefir grains and a 10 g/L commercial FreshQ ® culture (Chr. Hansen, Denmark). The obtained product is recommended to be used as an ingredient for the milk-derived nutraceuticals' formulation. As such, the product displayed increased antioxidant potential of 3.15 mM Trolox equivalent/g. Furthermore, the peptide fractions with a molecular weight lower than 3 kDa showed a notable in vitro ABTS radical scavenging activity, similar to a concentration of 2 nM captopril, hence proving a high potential in reducing the blood pressure.