Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice

This investigation aims to study the effects of germination conditions and extraction solvents on total phenolic content and antioxidant activities of Chiang Phatthalung a recommended rice cultivar in Southern Thailand. Chiang Phatthalung (Oryza sativa L.) was germinated by soaking in tap water at 2...

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Main Authors: A. Jongjareonrak, R. Sawaddiwong, S. Benjakul, K. Osako, M. Tanaka
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2009-06-01
Series:Czech Journal of Food Sciences
Subjects:
Online Access:https://cjfs.agriculturejournals.cz/artkey/cjf-200910-0121_effect-of-germination-conditions-on-antioxidant-activity-of-germinated-brown-rice.php
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author A. Jongjareonrak
R. Sawaddiwong
S. Benjakul
K. Osako
M. Tanaka
author_facet A. Jongjareonrak
R. Sawaddiwong
S. Benjakul
K. Osako
M. Tanaka
author_sort A. Jongjareonrak
collection DOAJ
description This investigation aims to study the effects of germination conditions and extraction solvents on total phenolic content and antioxidant activities of Chiang Phatthalung a recommended rice cultivar in Southern Thailand. Chiang Phatthalung (Oryza sativa L.) was germinated by soaking in tap water at 25, 30, 35 or 40°C for 24 h and then dried and powderised before subjected to extract with various solvents and analyses. Amongs all extraction solvents used, including 50% MeOH + 0.1% HCl, water, 25% EtOH, 50% EtOH, 75% EtOH and 95% EtOH, rices extracted with 50% EtOH had highest total phenolic content and antioxidant activities (P < 0.05). It was noticeable that brown rice germinated by soaking in tap water at 25°C had highest total phenolic content and antioxidant activities as determined by DPPH-, ABTS-radical scavenging activity and ferric reducing antioxidant power (P < 0.05). In addition the results suggesting that total phenolic content and antioxidant activities of germinated brown rice were higher than those of brown rice (P < 0.05).
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spelling doaj.art-fb70a72982d34d909e73a7d3a0c1f3f52023-02-23T03:27:32ZengCzech Academy of Agricultural SciencesCzech Journal of Food Sciences1212-18001805-93172009-06-0127Special Issue 1S53S5310.17221/905-CJFScjf-200910-0121Effect of Germination Conditions on Antioxidant Activity of Germinated Brown RiceA. JongjareonrakR. SawaddiwongS. BenjakulK. OsakoM. TanakaThis investigation aims to study the effects of germination conditions and extraction solvents on total phenolic content and antioxidant activities of Chiang Phatthalung a recommended rice cultivar in Southern Thailand. Chiang Phatthalung (Oryza sativa L.) was germinated by soaking in tap water at 25, 30, 35 or 40°C for 24 h and then dried and powderised before subjected to extract with various solvents and analyses. Amongs all extraction solvents used, including 50% MeOH + 0.1% HCl, water, 25% EtOH, 50% EtOH, 75% EtOH and 95% EtOH, rices extracted with 50% EtOH had highest total phenolic content and antioxidant activities (P < 0.05). It was noticeable that brown rice germinated by soaking in tap water at 25°C had highest total phenolic content and antioxidant activities as determined by DPPH-, ABTS-radical scavenging activity and ferric reducing antioxidant power (P < 0.05). In addition the results suggesting that total phenolic content and antioxidant activities of germinated brown rice were higher than those of brown rice (P < 0.05).https://cjfs.agriculturejournals.cz/artkey/cjf-200910-0121_effect-of-germination-conditions-on-antioxidant-activity-of-germinated-brown-rice.phptotal phenolsantioxidant acitivybrown ricesoaking in tap
spellingShingle A. Jongjareonrak
R. Sawaddiwong
S. Benjakul
K. Osako
M. Tanaka
Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
Czech Journal of Food Sciences
total phenols
antioxidant acitivy
brown rice
soaking in tap
title Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
title_full Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
title_fullStr Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
title_full_unstemmed Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
title_short Effect of Germination Conditions on Antioxidant Activity of Germinated Brown Rice
title_sort effect of germination conditions on antioxidant activity of germinated brown rice
topic total phenols
antioxidant acitivy
brown rice
soaking in tap
url https://cjfs.agriculturejournals.cz/artkey/cjf-200910-0121_effect-of-germination-conditions-on-antioxidant-activity-of-germinated-brown-rice.php
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AT kosako effectofgerminationconditionsonantioxidantactivityofgerminatedbrownrice
AT mtanaka effectofgerminationconditionsonantioxidantactivityofgerminatedbrownrice