Technological potential of Bifidobacterium aesculapii strains for fermented soymilk production
Artikel i vetenskaplig tidskrift, 2018

The present research was aimed to investigate the technological potentialities of seven strains of Bifidobacterium aesculapii, a species recently described, in terms of exopolysaccharide (EPS) production and as starter fermentation in soybean milk. The strain production of EPS was firstly evaluated in model system, using different carbon sources. Furthermore, the fermented products obtained by the seven strains of B. aesculapii were tested for their EPS content and strain cell loads, the volatile molecule profiles, the texture features and the overall acceptance. The data showed that all the B. aesculapii strains were able to produce EPS in vitro model in presence of 1.5% and 2% glucose while only four strains were able to produce EPS in presence of lactose 2%. When the strains were employed as fermentation starters in soybean milk, some showed a good growth potential, fermenting the substrate in 14 h and giving rise to fermented products with good firmness and viscosity indexes. Moreover, five strains out seven showed production of EPS (from 5 to 174 μg/mL) in soybean fermented milk.

Fermented soymilk

Bifidobacterium aesculapii

Volatile molecule profiles

Texture profile

Exopolysaccharides

Författare

Francesca Patrignani

Universita di Bologna

Monica Modesto

Universita di Bologna

Samanta Michelini

Universita di Bologna

Maria Cristina Sansosti

Universita di Bologna

Diana Serrazanetti

Universita di Bologna

Linnea Qvirist

Chalmers, Biologi och bioteknik, Livsmedelsvetenskap

Lorenzo Siroli

Universita di Bologna

Lucia Camprini

Universita di Bologna

Paola Mattarelli

Universita di Bologna

Rosalba Lanciotti

Universita di Bologna

LWT - Food Science and Technology

0023-6438 (ISSN) 1096-1127 (eISSN)

Vol. 89 689-696

Ämneskategorier

Mikrobiologi

Styrkeområden

Livsvetenskaper och teknik

DOI

10.1016/j.lwt.2017.11.048

Mer information

Senast uppdaterat

2018-05-30