Abstract
This study investigated the effect of drying temperature on the stability and quality of spray-dried coconut milk. A low concentration (1–2% w/w) of sodium caseinate (SC) was used as emulsifying agent with 8–9% of maltodextrin. The spray drying temperature was varied from 140 to 180 °C. Emulsions prepared at different SC concentration remained stable without phase separation for 24 h. Higher the SC concentration produced smaller-sized of droplet and powder particles. The spray dried coconut milk has a skin-forming structure. Emulsion with low concentration of SC (1% w/w) is unstable during atomisation process due to re-coalescence of fat. Adding SC to the emulsion reduce the moisture content to less than 5%. However, drying the emulsions at 180 °C gave negative impact to the powder properties. Some particles rupture and lead to high free fat content, high insolubility and larger fat droplet size. Presence of fleck is also noticed in the powder.
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This work was Funded by the Universiti Putra Malaysia under Geran Putra Berimpak (Vote No. 9532300) and this financial support is acknowledged.
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Abdullah, Z., Taip, F.S., Mustapa Kamal, S.M. et al. The effect of drying temperature and sodium caseinate concentration on the functional and physical properties of spray-dried coconut milk. J Food Sci Technol 58, 3174–3182 (2021). https://doi.org/10.1007/s13197-020-04820-9
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DOI: https://doi.org/10.1007/s13197-020-04820-9