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Characterization of some physicochemical properties of spray-dried and freeze-dried sour cherry powders

Karaca, Asli Can; Baskaya, Hakan; Guzel, Onder; Ak, Muhammet Mehmet


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{
  "DOI": "10.1111/jfpp.14975", 
  "abstract": "The main goal of this study was to compare glass transition temperature (Tg)- a(w) relations, critical water activity (a(wc)) values, particle morphology, moisture sorption behavior, total phenolic content, and stability of freeze-dried (FD) and spray-dried (SD) sour cherry powders. The Tg of the SD and FD powders decreased from 57 degrees C to 14 degrees C and from 47 degrees C to 15 degrees C, respectively, as the a(w) increased from 0.03 to 0.35. Higher Tg values were observed for SD powder compared to FD powder in the a(w) range (0.03-0.35) covered in this work. The a(wc) was 0.29 for SD powder and 0.26 for FD powder. Scanning electron microscopy images showed that FD sour cherry powder exhibited a more porous morphology compared to SD powder. Total phenolic content of SD and FD powders was found to be similar (16.1 +/- 0.3 mg GAE/g sour cherry dry matter). The results of this study suggest that physicochemical properties of spray-dried sour cherry powders are comparable to those obtained by freeze drying.", 
  "author": [
    {
      "family": "Karaca", 
      "given": " Asli Can"
    }, 
    {
      "family": "Baskaya", 
      "given": " Hakan"
    }, 
    {
      "family": "Guzel", 
      "given": " Onder"
    }, 
    {
      "family": "Ak", 
      "given": " Muhammet Mehmet"
    }
  ], 
  "container_title": "JOURNAL OF FOOD PROCESSING AND PRESERVATION", 
  "id": "4979", 
  "issue": "12", 
  "issued": {
    "date-parts": [
      [
        2020, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Characterization of some physicochemical properties of spray-dried and freeze-dried sour cherry powders", 
  "type": "article-journal", 
  "volume": "44"
}
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