Enrichment of phenolic antioxidant of saba banana (Musa acuminata x bulbisiana) peef by solid-state bioconversion using Rhizopus oryzae [manuscript]
| dc.contributor.author | Eulynne C. Eugenio | |
| dc.date.accessioned | 2026-05-21T00:13:51Z | |
| dc.date.available | 2026-05-21T00:13:51Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Background: Saba (Musa acuminata x balbisiana) banana is one of the common varieties of banana in the philippines. Banana peels are wastes that contribute pollution to the environment, but also a good source of antioxidants. Solid-state bioconversion (SSB) was used to enrich the phenolic capacity of fruit wastes. Rhizopus oryzae, the fungi responsible free the bound phenolics during enzyme hydrolysis, and improve antioxidant activity. Methods: Two treatments were prepared: one (T1) containing Saba banana peel only, and the other (T2) containing Saba banana peel with 8mm Rhizopus oryzae. Treatments were fermented for 16 days. Both treatments were analyzed every after two days. The treatments were extracted after 48 hours of soaking using 80% ethanol. The filtrates were measured spectrophotometrically. The total phenolic content was measured using Folin-Ciocalteau method, and the antioxidant activity using DPPH and H2O2 radical scavenging activities. Results: The total phenolic content of Saba banana peel without Rhizopus oryzae is 045 mg/GAE g higher than Saba Banana peel with Rhizopus oryzae. While in its antioxidabt activity, Saba banana peel with Rhizopus oryzae is 1.61% higher in inhibiting DPPH radicals compared to Saba banana peel without Rhizopus oryzae. In the inhibition of H2O2 radicals, the obtained values were negative due to the extracting solvent used, ethanol. The radicals oxidized the ethanol, instead of being scavenged by the Saba banana peel extracts. Conclusions: SSB using Rhizopus oryzae cannot enrich the total phenolic content of Saba banana peel, and its antioxidant activity. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/1346 | |
| dc.language.iso | en_US | |
| dc.relation.supervisor | Myrna R. Umagat, Ph.D. | |
| dc.title | Enrichment of phenolic antioxidant of saba banana (Musa acuminata x bulbisiana) peef by solid-state bioconversion using Rhizopus oryzae [manuscript] | |
| dc.type | Thesis |