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