Spray-drying optimization for Dunaliella salina and Porphyridium cruentum biomass

KONAR N., Durmaz Y., Gurbuz B., Genc Polat D., MERT B.

Drying Technology, cilt.41, sa.15, ss.2371-2384, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 15
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/07373937.2023.2244058
  • Dergi Adı: Drying Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CAB Abstracts, Chimica, Compendex, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
  • Sayfa Sayıları: ss.2371-2384
  • Anahtar Kelimeler: Dunaliella salina, Microalgae, Porphyridium cruentum, Spray-drying
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, Dunaliella salina and Porphyridium cruentum biomass were encapsulated by using a spray-dryer (SD) and combined D-optimal method. The independent variables were SD inlet temperature (170–190 °C), maltodextrin (25–75%, w/w, in dm), and microalgae biomass (25–75%, w/w, in dm). Prior to spray drying, P. cruentum and D. salina were cultivated in a pilot scale tubular photobioreactor and than harvested using a conical plate centrifuge. Significant models were determined for the effects of independent variables on total carotenoids, chlorophyll-a, crude protein, moisture contents and encapsulation yield (EY), water activity, average particle size, wettability, hygroscopicity, L* and C* properties for both microalgae species (p <.05). Due to the low EY (11.1–33.1%), we recommend encapsulation and drying of P. cruentum biomass with alternative methods to SD. The extracellular, as well as the cell wall and storage polysaccharides released into the culture medium of these microalgae are possible reasons for the low EY.