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Ethylene Treatment Minimally Affects Star Ruby Grapefruit Bioactive Compounds and Their Radical Scavenging Activity [poster abstract]
Year:
2010
Source of publication :
The 2010 ASHS Annual Conference
Authors :
פורת, רון
;
.
Volume :
Co-Authors:

Priyanka Chaudhary, Department of Horticultural Sciences, Vegetable and Fruit Improvement Center, College Station, TX

G.K. Jayaprakasha, Department of Horticultural Sciences, Texas A&M University, Vegetable and Fruit Improvement Center, College Station, TX

Bhimanagouda S. Patil, Department of Horticultural Sciences, Texas A&M University, Vegetable & Fruit Improvement Center, College Station, TX

Facilitators :
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Total pages:
1
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Abstract:

In recent years bioactive compounds have shown potential as anti inflammatory, anticarcinogenic and cholesterol lowering agents. Citrus fruits contain bioactive compounds such as triterpenoids, flavonoids, phenolics, folic acid, furocoumarins and vitamins. Early season mature citrus fruits are commercially treated with ethylene to improve peel color and marketability. In the present study, investigations were conducted to understand the effect of ethylene on Star ruby bioactive compounds and their radical scavenging activity. Star ruby fruits were degreened in commercial packing shed and later stored under simulated market conditions for 5 weeks. Ethylene degreening enhanced the peel color of degreened fruits but had no remarkable effect on internal fruit color.  Bioactive compounds from non-degreened and degreened fruits were quantified by HPLC. Nomilin content in degreened fruits was higher than non degreened fruits after 35 days of storage. No significant effect of ethylene treatment was observed on carotenoids and ascorbic acid content. Radical scavenging activity of Star ruby fractions were determined using 1,1-diphenyl-2-picryl hydrazyl (DPPH) method and results were expressed as ascorbic acid equivalents. Radical scavenging activity of degreened fruits was higher after 0, 7 and 14 days of storage as compared to non-degreened fruits. Total phenolics in the Star ruby fractions were determined by Folin-Ciocalteu method and results were expressed as catechin equivalents. No difference was observed in total phenolics content in both treatments and there was gradual increase up to 35 days. Therefore it may be possible to use degreening to improve fruit appearance and aesthetic value while minimally affecting bioactive compounds present in Star ruby grapefruit. To best of our knowledge this is first report on variation of bioactive compounds and their radical scavenging activity in edible portion of grapefruit after ethylene treatment.

Note:
Related Files :
Bioactive compounds
Citrus
ethylene
grapefruits
STAR RUBY
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר מתוך כינוס
;
.
פוסטר
;
.
תקציר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45021
Last updated date:
02/03/2022 17:27
Creation date:
14/11/2019 11:05
Scientific Publication
Ethylene Treatment Minimally Affects Star Ruby Grapefruit Bioactive Compounds and Their Radical Scavenging Activity [poster abstract]

Priyanka Chaudhary, Department of Horticultural Sciences, Vegetable and Fruit Improvement Center, College Station, TX

G.K. Jayaprakasha, Department of Horticultural Sciences, Texas A&M University, Vegetable and Fruit Improvement Center, College Station, TX

Bhimanagouda S. Patil, Department of Horticultural Sciences, Texas A&M University, Vegetable & Fruit Improvement Center, College Station, TX

Ethylene Treatment Minimally Affects Star Ruby Grapefruit Bioactive Compounds and Their Radical Scavenging Activity

In recent years bioactive compounds have shown potential as anti inflammatory, anticarcinogenic and cholesterol lowering agents. Citrus fruits contain bioactive compounds such as triterpenoids, flavonoids, phenolics, folic acid, furocoumarins and vitamins. Early season mature citrus fruits are commercially treated with ethylene to improve peel color and marketability. In the present study, investigations were conducted to understand the effect of ethylene on Star ruby bioactive compounds and their radical scavenging activity. Star ruby fruits were degreened in commercial packing shed and later stored under simulated market conditions for 5 weeks. Ethylene degreening enhanced the peel color of degreened fruits but had no remarkable effect on internal fruit color.  Bioactive compounds from non-degreened and degreened fruits were quantified by HPLC. Nomilin content in degreened fruits was higher than non degreened fruits after 35 days of storage. No significant effect of ethylene treatment was observed on carotenoids and ascorbic acid content. Radical scavenging activity of Star ruby fractions were determined using 1,1-diphenyl-2-picryl hydrazyl (DPPH) method and results were expressed as ascorbic acid equivalents. Radical scavenging activity of degreened fruits was higher after 0, 7 and 14 days of storage as compared to non-degreened fruits. Total phenolics in the Star ruby fractions were determined by Folin-Ciocalteu method and results were expressed as catechin equivalents. No difference was observed in total phenolics content in both treatments and there was gradual increase up to 35 days. Therefore it may be possible to use degreening to improve fruit appearance and aesthetic value while minimally affecting bioactive compounds present in Star ruby grapefruit. To best of our knowledge this is first report on variation of bioactive compounds and their radical scavenging activity in edible portion of grapefruit after ethylene treatment.

Scientific Publication
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