| Total antioxidant activity and fiber content of select Florida-grown tropical fruits. | |
| | |
MedLine Citation:
|
PMID: 16968105 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Fourteen tropical fruits from south Florida (red guava, white guava, carambola, red pitaya (red dragon), white pitaya (white dragon), mamey sapote, sapodilla, lychee, longan, green mango, ripe mango, green papaya, and ripe papaya) were evaluated for antioxidant activity, total soluble phenolics (TSP), total ascorbic acid (TAA), total dietary fiber (TDF), and pectin. ORAC (oxygen radical absorbance capacity) and DPPH (1,1-diphenyl-2-picrylhydrazyl, radical scavenging activity) assays were used to determine antioxidant activity. The TSP, ORAC, and DPPH ranged from 205.4 to 2316.7 g gallic acid equiv/g puree, <0.1 to 16.7 micromol Trolox equiv/g puree, and 2.1 to 620.2 microg gallic acid equiv/g puree, respectively. The TAA, TDF, and pectin ranged from 7.5 to 188.8 mg/100 g, 0.9 to 7.2 g/100 g, and 0.20 to 1.04 g/100 g, respectively. The antioxidant activities, TSP, TAA, TDF, and pectin were influenced by cultivar (papaya, guava, and dragon fruit) and ripening stage (papaya and/or mango). Antioxidant activity showed high correlations with levels of TSP compounds (r = 0.96) but low correlations with levels of ascorbic acid (r = 0.35 and 0.23 for ORAC and DPPH data, respectively). The antioxidant activities evaluated by both ORAC and DPPH showed similar trends where red guava and carambola exhibited the highest and sapodilla and green papaya exhibited the lowest levels. Guava and mamey sapote exhibited the highest TDF and pectin levels. Many of the tropical fruits were shown to contain an abundance of hydrolyzable tannins, ellagic acid conjugates, and flavone glycosides. Preliminary descriptions are given of the phenols in red/white pitaya (dragonfruit), lychee, and mamey sapote, these fruit being thus far uncharacterized in the literature. |
| | |
Authors:
|
Kanjana Mahattanatawee; John A Manthey; Gary Luzio; Stephen T Talcott; Kevin Goodner; Elizabeth A Baldwin |
Related Documents
:
|
16109635 - Dimerization of ferulic and caffeic acids by purified peroxidase isolated from bupleuru... 18930055 - Inhibitory effects of gallic acid and quercetin on udp-glucose dehydrogenase activity. 17263495 - Profiling the chlorogenic acids and other caffeic acid derivatives of herbal chrysanthe... 11826955 - Stable isotope-labeling studies on the oxidative coupling of caffeic acid via o-quinone. 8581355 - Metabolism of succinic acid methyl esters in neural cells. 3630965 - Phytic acid and calcium affect the in vitro rate of navy bean starch digestion and bloo... |
Publication Detail:
|
Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of agricultural and food chemistry Volume: 54 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2006 Sep |
Date Detail:
|
Created Date: 2006-09-13 Completed Date: 2006-11-02 Revised Date: 2009-11-19 |
Medline Journal Info:
|
Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
|
Languages: eng Pagination: 7355-63 Citation Subset: IM |
Affiliation:
|
Citrus and Subtropical Products Laboratory, South Atlantic Area, Agricultural Research Service, United States Department of Agriculture, 600 Avenue S, Northwest, Winter Haven, Florida 33881, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Antioxidants
/
analysis*,
pharmacology Biphenyl Compounds Dietary Fiber / analysis* Flavones / analysis Florida Fruit / chemistry*, growth & development Pectins / analysis Phenols / analysis Picrates / chemistry Reactive Oxygen Species / chemistry Tannins / analysis Tropical Climate |
| Chemical | |
Reg. No./Substance:
|
0/Antioxidants; 0/Biphenyl Compounds; 0/Flavones; 0/Pectins; 0/Phenols; 0/Picrates; 0/Reactive Oxygen Species; 0/Tannins; 1898-66-4/2,2-diphenyl-1-picrylhydrazyl; 9000-69-5/pectin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Extraction, detection, and quantification of flavano-ellagitannins and ethylvescalagin in a Bordeaux...
Next Document: Absorption of flavonols derived from sea buckthorn (Hippophaë rhamnoides L.) and their effect on em...