00000nam a22000004a 4500 UP-1685954869149719116 Buklod 20240319143858.0 m |o d | ta 240315s2023 xxu rm |||| u|eng d DCHE rda eng LG 995 2023 F6 P35 Palomeno, Antonio M., Jr. author. Characterization of the physicochemical and phytochemical properties of Carrier Agent-Optimized Microencapsulated Sapinit (Rubus rosifolius Linn.) Antonio Jr. M. Palomeno; Casiana Blanca J. Villarino, Ph.D., thesis adviser; Rowena Grace O. Rumbaoa-Sanchez, M.Sc., thesis reader. Quezon City College of Home Economic, University of the Philippines Diliman [2023] xv, 168 leaves illustrations 28 cm. text rdacontent unmediated rdamedia volume rdacarrier Thesis (Master of Science in Food Science) -- University of the Philippines Diliman July 2023. Bibliography: pages 107-127. Thesis classification: I In this study, optimization and validation of different carrier agent combinations to predict desirable powder properties, characterization of the physicochemical properties of the carrier agent-optimized microencapsulated sapinit, and evaluation of the phytochemical properties of fresh sapinit and its processed forms were investigated. The optimization process was performed using combinations of gum arabic (GA), maltodextrin (MD), and soy protein isolate (SPI) as carrier agents. A carrier agent combination of 2.25% GA, 22.75% MD, and 0% SPI was selected as optimum. Validation experiments revealed that the selected combination accurately predicted a sapinit powder with excellent flow characteristic, more intense red color, and relatively high antioxidant properties. Characterization of the morphology showed that sapinit powder particles presented an irregular semi-spherical shape with wrinkled surfaces and a low average particle diameter of 5.40μm. The sapinit powder had average values of bulk density at 0.43g/mL, tapped density at 0.47g/mL, Hausner ratio at 1.09, and Carr’s compressibility index at 9.17%. Its moisture content (MC) was around the usual 2-4% MC for sugar-rich products and its water activity was < 0.3. The sapinit powder had average values of L* at 83.56, a* at 6.28, b* at 12.60, chroma at 14.08, and hue angle at 1.11. Processing temperature and the carrier agents used may have affected the physicochemical properties of sapinit powder. Freeze drying slightly (p-value < 0.05) increased while spray drying significantly (p-value < 0.05) decreased its total anthocyanin content and total phenolic content. This study indicated that sapinit can be microencapsulated using combination of gum arabic and maltodextrin with desirable physicochemical and phytochemical properties. Red raspberry Philippines. Sapinit Lucban, Quezon Province. Villarino, Casiana Blanca J. thesis adviser. Rumbaoa-Sanchez, Rowena Grace O. thesis reader. Available for University of the Philippines Diliman via Digital Archives. Click here to access https://digitalarchives.upd.edu.ph/item/60358/971/3FgC9B4dMDgBKmkH2bafa3dl FI UP UPD DCHE LG 995 2023 F6 P35 Thesis