| Title of Article |
Application of mild-subcritical alkaline water extraction: optimum condition for phenolic antioxidant extracted from cold-pressed defatted KDML105 rice bran and its phenolic profile. |
| Date of Acceptance |
11 July 2021 |
| Journal |
| Title of Journal |
Food research |
| Standard |
SCOPUS |
| Institute of Journal |
http://www.myfoodresearch.com |
| ISBN/ISSN |
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| Volume |
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| Issue |
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| Month |
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| Year of Publication |
2021 |
| Page |
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| Abstract |
This research aimed at optimizing the process of the mild-subcritical alkaline water (pH 9.5) extraction (mild SAW) of cold-pressed defatted Khao Dawk Mali 105 rice bran (CDRB) in order to achieve the maximum antioxidants with a minimal brown color. Response surface methodology and central composite design were performed with two variables: extraction temperature (107-129°C) and time (21-149 min). The elucidated optimum conditions were 119 °C and 85 min with predicted response values: the total phenolic content of 16.9 mg gallic acid/g; protein of 64.3 mg/g; an ABTS radical scavenging activity of 14.4 mg trolox/g; a browning index of 0.41; and reducing sugar of 62.0 mg/g. Proto-catechuic acid and p-coumaric acid were major phenolic compounds in the CDRB, while trans-ferulic acid, proto-catechuic acid, and p-coumaric acid were all abundant in the mild SAW extract. The results confirmed that the mild SAW extraction process for antioxidants is an environmentally-friendly approach, which can increase a release of value-added compounds from rice bran residues. |
| Keyword |
Subcritical alkaline water extraction, response surface methodology, antioxidant activity, phenolic profile |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
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