Volume 77, Issue 2 pp. 282-291
Research Article

The optimisation of processing and storage conditions of lyophilised purslane-fortified yoghurts by central composite design

Birsu Satkın

Birsu Satkın

Department of Biochemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, 58140 Turkey

Contribution: ​Investigation, Funding acquisition, Formal analysis, Resources

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Ayse Burcu Aktas

Corresponding Author

Ayse Burcu Aktas

Department of Biochemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, 58140 Turkey

Author for correspondence. E-mail: [email protected]

Contribution: Conceptualization, ​Investigation, Funding acquisition, Writing - original draft, Writing - review & editing, Visualization, Methodology, Validation, Project administration, Formal analysis, Software, Data curation, Supervision, Resources

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First published: 26 December 2023

Abstract

The objectives of this study were to manufacture lyophilised purslane-fortified yoghurts in order to improve the functional properties of yoghurt and to optimise processing and storage conditions of fortified yoghurts. A central composite design was created by considering the storage time (5–12 days), lyophilised purslane concentration (0.25–0.5%) and starter culture ratio (1–3%) as factors. The fortified yoghurts were supplemented by phenolics (up to 36.94 mg gallic acid equivalent per kg) and linoleic acid (3.15–11.31%). The optimal fortified yoghurt processing and storage parameters were determined to be 0.55% lyophilised purslane, 3.41% starter culture ratios and 5 days of storage at 4°C.

CONFLICT OF INTEREST

The authors declare no conflict of interest and agree to publish this article.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on the article. The data could be used by request from the corresponding author.

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