A blog maintained by Tevita Kete, PGR Officer
Secretariat of the Pacific Community (SPC), Suva, Fiji Islands
This weblog documents the activities of Pacific Agricultural Genetic Resources Network (PAPGREN), along with other information on plant genetic resources (PGR) in the Pacific.
The myriad varieties found within cultivated plants are fundamental to the present and future productivity of agriculture. PAPGREN, which is coordinated by the Land Resources Division of the Secretariat of the Pacific Community (SPC), helps Pacific countries and territories to conserve their crop genetic diversity sustainably, with technical assistance from the Bioversity International (BI) and support from NZAID and ACIAR.
SPC also hosts the Centre of Pacific Crops and Trees (CEPaCT). The CEPaCT maintains regional in vitro collections of crops important to the Pacific and carries out research on tissue culture technology. The CEPaCT Adviser is Dr Mary Taylor (MaryT@spc.int), the CEPaCT Curator is Ms Valerie Tuia (ValerieT@spc.int).
PAPGREN coordination and support
Mr William Wigmore
Mr Adelino S. Lorens
Dr Lois Englberger
Mr Apisai Ucuboi
Dr Maurice Wong
Mr Tianeti Beenna Ioane
Mr Frederick Muller
Mr Herman Francisco
Ms Rosa Kambuou
Ms Laisene Samuelu
Mr Jimi Saelea
Mr Tony Jansen
Mr Finao Pole
Mr Frazer Bule Lehi
Interested in GIS?
Sunday, September 09, 2007
Posted 9:42 PM by Tevita
Phytochemical flavonols, carotenoids and the antioxidant properties
of a wide selection of Fijian fruit, vegetables and other readily
From : Jimaima Lako
Food Chemistry xxx (2006) xxx–xxx
Frequent consumption of fruits and vegetables is associated with a lowered risk of cancer, heart disease, hypertension and stroke. This has been attributed to the presence of various forms of phytochemicals and antioxidants present in the foods, e.g. carotenoids and polyphenol compounds including flavonoids and anthocyanins. Seventy Fiji grown fruits and vegetables, and some other commonly consumed products, were analysed for their total antioxidant capacity (TAC), total polyphenol content (TPP), total anthocyanin content (TAT) as well as the major flavonol and carotenoid profiles. These data will be used to estimate the phytochemical and antioxidant intake of the Fijian population and will be a useful tool in future clinical trials.
Green leafy vegetables had the highest antioxidant capacity, followed by the fruits and root crops. A number of herbs also exhibited high antioxidant capacity. Ipomoea batatas (sweet potato) leaves have the highest TAC (650 mg/100 g) and are rich in TPP (270 mg/
100 g), quercetin (90 mg/100 g) and b-carotene (13 mg/100 g). Moringa oleifera (drumstick) leaves also have a high TAC (260 mg/100 g) and are rich in TPP (260 mg/100 g), quercetin (100 mg/100 g), kaempferol (34 mg/100 g) and b-carotene (34 mg/100 g). Curcuma
longa (turmeric ginger) has a high TAC (360 mg/100 g), TPP (320 mg/100 g) and is rich in fisetin (64 mg/100 g), quercetin (41 mg/100 g) and myricetin (17 mg/100 g). Zingiber officinate (white ginger) also has a high TAC (320 mg/100 g) and TPP (200 mg/100 g). Zingiber
zerumbet (wild ginger), a widely used herb taken before meals is the richest source of kaempferol (240 mg/100 g).
2006 Elsevier Ltd. All rights reserved.
Keywords: Phytochemicals; Flavonols; Carotenoids; Antioxidant capacity; Food; Fiji
Jimaima Lako a,*, V. Craige Trenerry b, Mark Wahlqvist a, Naiyana Wattanapenpaiboon a,
Subramanium Sotheeswaran c, Robert Premier d
a Asia Pacific Health and Nutrition Centre, Monash Asia Institute, Building 11A, Monash University, Vic. 3800, Australia
b PIRVic DPI-Werribee, 621 Sneydes Road, Werribee, Vic. 3030, Australia
c Chemistry Department, The University of the South Pacific, Fiji
d PIRVic DPI-Knoxfield, 621 Burwood Highway, Knoxfield, 3152 Vic., Australia
Received 10 April 2005; received in revised form 2 January 2006; accepted 20 January 2006
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