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Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.

An experiment was designed to characterize the relationship among gluthatione (OSH) production, oxidized gluthatione (OSSG), total flavonoid, anthocyanin, ascorbic acid and antioxidant activities (FRAP, DPPH) in three varieties of Labjsja pumila Blume (var. alata,pumila, lanceolata) under four ni...

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Main Authors: Jaafar, Hawa ZE, Ibrahim, Mohd Hafiz
Format: Conference or Workshop Item
Language:English
Malay
Online Access:http://psasir.upm.edu.my/id/eprint/26719/1/ID%2026719.pdf
http://psasir.upm.edu.my/id/eprint/26719/
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spelling my.upm.eprints.267192014-08-28T04:54:17Z http://psasir.upm.edu.my/id/eprint/26719/ Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization. Jaafar, Hawa ZE Ibrahim, Mohd Hafiz An experiment was designed to characterize the relationship among gluthatione (OSH) production, oxidized gluthatione (OSSG), total flavonoid, anthocyanin, ascorbic acid and antioxidant activities (FRAP, DPPH) in three varieties of Labjsja pumila Blume (var. alata,pumila, lanceolata) under four nitrogen fertilization levels (0, 90, 180,270 kg N/ha). Nitrogen (N) fertilization imposed acute impact on the production of GSH and GSSG, anthocyanin, total flavonoid and ascorbic acid that increased steadily with decreasing N level from 270 to 0 kg N/ha. Neither varietal nor its interaction with N level being observed. At the highest N level, L. pumila exhibited significantly lower antioxidant activities than those exposed to limited N-growing condition. Significant positive correlations were obtained among antioxidant activities, total flavonoid, GSH, GSSG, anthocyanin and ascorbic acid suggesting an increase in antioxidative activities in L. pumila under low N fertilization could be attributed to high contents of these compounds. It could also be concluded that the quality of L. pumila could be enhanced with manipulation of N fertilization, and that excessive N application should be avoided to ensure high herbal quality. Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/26719/1/ID%2026719.pdf Jaafar, Hawa ZE and Ibrahim, Mohd Hafiz Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization. In: BIT's 1st Annual World Congress of SQ Foods-2012, 1-3 Nov 2012, Shenzhen, China. . Malay
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
Malay
description An experiment was designed to characterize the relationship among gluthatione (OSH) production, oxidized gluthatione (OSSG), total flavonoid, anthocyanin, ascorbic acid and antioxidant activities (FRAP, DPPH) in three varieties of Labjsja pumila Blume (var. alata,pumila, lanceolata) under four nitrogen fertilization levels (0, 90, 180,270 kg N/ha). Nitrogen (N) fertilization imposed acute impact on the production of GSH and GSSG, anthocyanin, total flavonoid and ascorbic acid that increased steadily with decreasing N level from 270 to 0 kg N/ha. Neither varietal nor its interaction with N level being observed. At the highest N level, L. pumila exhibited significantly lower antioxidant activities than those exposed to limited N-growing condition. Significant positive correlations were obtained among antioxidant activities, total flavonoid, GSH, GSSG, anthocyanin and ascorbic acid suggesting an increase in antioxidative activities in L. pumila under low N fertilization could be attributed to high contents of these compounds. It could also be concluded that the quality of L. pumila could be enhanced with manipulation of N fertilization, and that excessive N application should be avoided to ensure high herbal quality.
format Conference or Workshop Item
author Jaafar, Hawa ZE
Ibrahim, Mohd Hafiz
spellingShingle Jaafar, Hawa ZE
Ibrahim, Mohd Hafiz
Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
author_facet Jaafar, Hawa ZE
Ibrahim, Mohd Hafiz
author_sort Jaafar, Hawa ZE
title Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
title_short Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
title_full Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
title_fullStr Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
title_full_unstemmed Possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
title_sort possible enhancement of antioxidative activities in medicinal in herbal plant through nitrogen fertilization.
url http://psasir.upm.edu.my/id/eprint/26719/1/ID%2026719.pdf
http://psasir.upm.edu.my/id/eprint/26719/
_version_ 1643828994384068608
score 13.211869

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