Impact of ultrasonicated Lactobacillus delbrueckii subsp. bulgaricus, Streptococcus thermophilus and Lactiplantibacillus plantarum AF1 on the safety and bioactive properties of stirred yoghurt during storage.

Autor: Gholamhosseinpour A; Department of Food Science and Technology, Faculty of Agriculture, Jahrom University, Jahrom, Iran., Hashemi SMB; Department of Food Science and Technology, Faculty of Agriculture, Fasa University, Fasa, Iran. Electronic address: hashemi@fasau.ac.ir., Safari F; Department of Food Science and Technology, Faculty of Agriculture, Jahrom University, Jahrom, Iran., Kerboua K; National Higher School of Technology and Engineering, Department of Process and Energy Engineering, 23005 Annaba, Algeria.
Jazyk: angličtina
Zdroj: Ultrasonics sonochemistry [Ultrason Sonochem] 2024 Jan; Vol. 102, pp. 106726. Date of Electronic Publication: 2023 Dec 13.
DOI: 10.1016/j.ultsonch.2023.106726
Abstrakt: In this study, the effects of ultrasonicated Lactobacillus delbrueckii subsp. bulgaricus, Streptococcus thermophilus and Lactiplantibacillus plantarum AF1 (100 W, 30 kHz, 3 min) on the safety and bioactive properties of stirred yoghurt during storage (4 °C for 21 days) were investigated. The results showed that sonicated cultures were more effective in reducing pathogens than untreated ones. The highest antioxidant activity (DPPH and ABTS), α-glucosidase and α-amylase inhibition capacity were found in yoghurt containing sonicated probiotic + sonicated yoghurt starter cultures (P + Y + ). The highest amount of peptides (12.4 mg/g) was found in P + Y + yoghurts at the end of the storage time. There were not significant differences between the exopolysaccharide content of P + Y+ (17.30 mg/L) and P + Y- (17.20 mg/L) yoghurts, although it was significantly (P ≤ 0.05) higher than the other samples. The use of ultrasonicated cultures could enhance the safety of stirred yoghurt and improve its functional and bioactive properties.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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