Profile and Antioxidant Capacity of Phenolic Compounds from Rice Straw

Thalia, Chessa Uly and Nathania, Clairine and Sukweenadhi, Johan and Purwanto, Maria Goretti Marianti (2022) Profile and Antioxidant Capacity of Phenolic Compounds from Rice Straw. Indonesian Journal of Biotechnology and Biodiversity (IJOBB), 6 (1). pp. 10-17. ISSN 2581-0014

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Abstract

A study was conducted with the purpose of comparing the antioxidant properties of the aquadest extracts of three varieties of red rice straw: Memberamo, Ciherang, and Barak Cenana. The extraction was done using ultrasound-assisted extraction (UAE) technique. The compound profiling of the phenolic compounds in the extracts were done by thin-layer chromatography (TLC) and gas chromatography (GC). The antioxidant activity measurements were done using the DPPH and FRAP assays, using garlic acid as the standard. The total phenolic content assay showed no significant difference in the total phenolic content among the three rice straw varieties. TLC results showed two presumable flavonoids in Memberamo and Ciherang rice straw extracts, and three presumable flavonoids in Barak Cenana rice straw extract. GC analysis results detected three components in Memberamo rice straw extract, five components in Ciherang rice straw extract, and six components in Barak Cenana rice straw extract. The DPPH assay results showed that Barak Cenana rice straw extract indicated the highest antioxidant activity among the three varieties, while the FRAP assay results showed no significant difference in the antioxidant activity among the three rice straw varieties.

Item Type:	Article
Uncontrolled Keywords:	Antioxidant, phenolic compounds, rice straw, ultrasound-assisted extraction
Subjects:	Q Science > QH Natural history > QH301 Biology
Divisions:	Faculty of Technobiology > Department of Biology
Depositing User:	Eko Setiawan 194014
Date Deposited:	12 May 2022 06:10
Last Modified:	30 Mar 2023 04:15
URI:	http://repository.ubaya.ac.id/id/eprint/41841

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