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Freshness quality and shelf-life prediction of ready-to-use (RTU) seaweed powders: An accelerated test approach to ensure products and consumers safety
Journal article   Open access   Peer reviewed

Freshness quality and shelf-life prediction of ready-to-use (RTU) seaweed powders: An accelerated test approach to ensure products and consumers safety

Israt Jahan Sumaiya, Md Shahedul Islam, Nahid Sultana, Amena Kibria, Sadia Afrin, Degonto Islam, Tasnim Sultana, Shuva Bhowmik and Abdullah-Al Mamun
Future foods, Vol.13, 100996
16/03/2026
DOI: https://doi.org/10.1016/j.fufo.2026.100996
Handle:
https://hdl.handle.net/10523/50217

Abstract

ASLT approach Blue economy Ready-to-use products Seaweed powder Shelf-life
Globally, the growing popularity of ready-to-use (RTU) foods underscores the need to investigate the shelf life of RTU seaweed to ensure year-round quality and safety for consumers. Therefore, the study was designed to predict the shelf-life of RTU seaweed powders (derived from Ulva lactuca, Gracilaria tenuistipitata, Ulva intestinalis) using accelerated shelf-life testing (ASLT) combined with a Q10-based predictive model to minimize experimental duration and cost. The RTU seaweed powder was prepared and stored at elevated temperatures of 45°C and 55°C to simulate temperature-dependent deterioration and to extrapolate stability under normal storage. Proximate composition, total volatile basic nitrogen (TVBN), pH, microbial proliferation, and sensory characteristics were measured fortnightly up to 45 days. Significant (p < 0.05) quality changes occurred during storage; however, TVBN values ranged from 9.12 ± 0.2 to 21.69 ± 1.85 mg N/100 g (below 25 mg N/100 g), indicating very good quality and acceptability to consumers. Sensory attributes remained acceptable, while TVC remained below the WHO permissible limit of 10⁵ cfu/g, with no pathogens detected. Based on Q10 modelling assumptions, the RTU seaweed powders are predicted to retain quality for approximately one year under normal conditions. These findings can support small and medium enterprises (SMEs) in labelling best-before dates, aiding producers and informing consumers.
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Published (Version of record) Open Access CC BY V4.0  — You are free to: Share - copy and redistribute the material in any medium or format for any purpose, even commercially; Adapt - remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution - You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions - You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. Notices: You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation . No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
url
https://doi.org/10.1016/j.fufo.2026.100996View
Published (Version of record) Open CC BY V4.0  — You are free to: Share - copy and redistribute the material in any medium or format for any purpose, even commercially; Adapt - remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution - You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions - You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. Notices: You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation . No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

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