Conversion of milk lactose to galacto-oligosaccharides by enzymes to produce prebiotic enriched cheese

Autor: Awais Raza, Sanaullah Iqbal, Faiz-ul-Hassan Shah, Zulfiqar Ahmad, Muhammad Adil Rehman, Muhammad Waseem, Muhammad Usman
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Future Foods, Vol 4, Iss , Pp 100097- (2021)
Druh dokumentu: article
ISSN: 2666-8335
DOI: 10.1016/j.fufo.2021.100097
Popis: In this study, lactose in milk is converted to galacto-oligosaccharides (GOS) using β-gal from Kluveromyces lactis. Trans-galactosylation was done by adding 1 mL of β-gal in 1L milk at 42°C for 2 hours with continuous agitation. Subsequently, the cheese prepared from the GOS enriched milk and control milk were compared for the physico-chemical and organoleptic properties. The chemical composition of prebiotic cheese exhibited non-significant differences for the fat, protein, moisture and ash, whereas a significantly lower level of lactose (56.25%) was observed as compared to control cheese. Organoleptic evaluation showed that the prebiotic cheese has a similar appearance and overall acceptability as does the control cheese except for taste and texture which were improved by trans-glycosylation.
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