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Optimization of spray drying conditions for production of Achillea millefolium extract powder

Radisavljevic, Andela ; Milutinovic, Milica ; Brankovic, Suzana Dimitrijevic ; Uskokovic, Petar ; Rajilic-Stojanovic, Mirjana

Hemijska industrija, 2021-01, Vol.75 (6), p.353-363 [Periódico revisado por pares]

Belgrade: Association of Chemical Engineers of Serbia

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  • Título:
    Optimization of spray drying conditions for production of Achillea millefolium extract powder
  • Autor: Radisavljevic, Andela ; Milutinovic, Milica ; Brankovic, Suzana Dimitrijevic ; Uskokovic, Petar ; Rajilic-Stojanovic, Mirjana
  • Assuntos: antimicrobial activity ; antioxidant activity ; Antioxidants ; Composition ; Flow velocity ; Gallic acid ; Health aspects ; Liquid flow ; Mathematical optimization ; Methods ; Optimization ; Polyphenols ; Response surface methodology ; Spray drying ; Yarrow
  • É parte de: Hemijska industrija, 2021-01, Vol.75 (6), p.353-363
  • Descrição: In this study, a spray drying process of yarrow (Achillea millefolium L.) liquid extracts was optimized by using the response surface methodology. The study aimed to determine the influence of temperature (120-195?C), liquid flow rate (3-16.5 cm3 min-1) and dry matter content in the liquid extract (0.3-1.5 %) on the yield of the drying process, the total polyphenols content and the antioxidant activity of the dry powder. Under the tested conditions the yield varied dramatically and ranged from 8 to 75%, while the effects on the polyphenol content and antioxidant activity were lower. The optimized conditions for the maximum antioxidant activity and maximal yield of the dried extract were as follows: temperature of 130?C, liquid flow rate of 7.5 cm3 min-1 and dry matter content of 1.2%. Under the optimal conditions, the yield was 66 %, while there was a slight decrease in the polyphenol content in the dried extract as compared to that in the liquid extract (145 mg of gallic acid equivalents [GAE] per g of the total dry matter vs. 152 mg GAE g-1, respectively). Consequently, antioxidant activity of the dry powder was only slightly reduced as compared to that of the liquid extract (DPPH neutralization was 58 vs. 64 %, respectively). The dried yarrow powder preserved its antimicrobial activity against pathogenic bacteria Staphylococcus aureus (MIC value of 10 mg cm-3) and Pseudomonas aeruginosa (MIC value of 20 mg cm-3).
  • Editor: Belgrade: Association of Chemical Engineers of Serbia
  • Idioma: Inglês;Serbian
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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