Status : Verified
| Personal Name | Baello, Genevieve D. |
|---|---|
| Resource Title | Effects of Enzymes on the Yield and Quality of Proteins Extracted from Microwave-Vacuum Stabilized Rice Bran |
| Date Issued | 04 June 2019 |
| Abstract | This study aimed to determine the effects of enzymatic extraction on the functional properties of protein isolates from microwave vacuum (MV) stabilized rice bran. Specifically, the study: (a) determined the effects of MV on the proximate composition of rice bran and; (b) evaluated the effects of selected enzymes i.e. xylanase (X), Flavourzyme (F), cellulase (Ce) and their combinations i.e. xylanase-Flavourzyme (XF), xylanase-cellulase (XC), Flavourzyme-cellulase (FC), and xylanase-Flavourzyme-cellulase (XFC) on the extraction yield (g/g), emulsifying activity (EAI, m2/g) and stability (ESI, min), water absorption capacity (WAC, g/g), and oil absorption capacity (OAC, g/g) of rice bran proteins. Microwave stabilized rice bran had higher proximate composition compared to unstabilized rice bran. Extraction yield of enzyme-treated samples did not have significant (p>0.05) difference regardless of whether the samples were stabilized or unstabilized. There were also no significant differences (p>0.05) between the EAI, ESI, WAC, OAC of enzyme treated URB samples and control. For SRB samples, only the ESI and WAC had a significant (p>0.05) differences between the enzyme treatment-samples and the control. The ESI of F-treated SRB samples were significantly (p>0.05) lesser than the control. This implies that the proteins extracted from URB have similar solubilities while the F coupled with stabilization treatments yielded less soluble proteins. The rank means of enzyme treatments on SRB did not have a significant difference (p>0.05) with the control and this implies that the method should be improved. |
| Degree Course | Bachelor of Science in Food Technology |
| Language | English |
| Keyword | Enzymatic analysis; microwave-vacuum stabilization; rice bran; Rice bran protein; Rice bran--Processing |
| Material Type | Thesis/Dissertation |
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