Small angle neutron scattering study of nanostructural changes in microbial transglutaminase-treated low-fat yogurt during fermentation

Lívia Darnay, Adél Len, Ágota Koncz, László Friedrich, L. Rosta

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Small angle neutron scattering (SANS) studies of fermentation of bovine milk with and without microbial transglutaminase (mTG) are described. Use of mTG increased the quality of low-fat yogurt via cross-linking of milk proteins. The SANS method was suitable for simultaneous characterization of the fermentation process and the effect of mTG. A decrease of whey protein release into the supernatant of centrifuged low-fat yogurt samples showed how mTG was capable to cross-link them already after 1 h of fermentation. The applied SANS method can be used to follow the sol-gel transformation of fermented dairy products in general. Moreover it can be a special tool for detecting the activity of mTG during fermentation of low-fat yogurts.

Original languageEnglish
Pages (from-to)2125-2128
Number of pages4
JournalFood Science and Biotechnology
Volume24
Issue number6
DOIs
Publication statusPublished - Dec 1 2015

Fingerprint

Small Angle Scattering
Yogurt
Transglutaminases
protein-glutamine gamma-glutamyltransferase
Neutrons
yogurt
Fermentation
Fats
fermentation
lipids
Cultured Milk Products
fermented dairy products
Milk Proteins
milk proteins
Polymethyl Methacrylate
whey protein
crosslinking
microbial activity
Milk
Gels

Keywords

  • fermentation
  • microbial transglutaminase
  • SANS
  • viscosity
  • yogurt

ASJC Scopus subject areas

  • Food Science
  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Small angle neutron scattering study of nanostructural changes in microbial transglutaminase-treated low-fat yogurt during fermentation. / Darnay, Lívia; Len, Adél; Koncz, Ágota; Friedrich, László; Rosta, L.

In: Food Science and Biotechnology, Vol. 24, No. 6, 01.12.2015, p. 2125-2128.

Research output: Contribution to journalArticle

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